Air fan, in particular, for heating device of vehicle

FIELD: heating.

SUBSTANCE: invention relates to a fan for a heating device in a vehicle. The fan comprises an electric drive of a fan, and also a wheel made as capable of fan driving with the drive, besides, closure of the electric contact of the fan drive is carried out with the help of spring contacts. Besides, there is a fan channel made in the fan body connected to the fan electric drive as circularly arranged around the axis (A) of rotation, being open at the axial side closed with the fan wheel, and the fan channel comprises an inlet zone and an outlet zone separated by means of an interruption zone, besides, in the fan body there is a hole, through which the driving shaft of the fan drive stretches as connected with the wheel for joint rotation.

EFFECT: invention is aimed at creation of more reliable electric closure of a fan contact.

10 cl, 4 dwg

 

The present invention relates to a fan air, in particular, for the heater of the vehicle containing the electric fan, and driven by the fan drive the fan wheel.

Such designated generally as fans with side channels, air fans are often used in heating appliances vehicles, with the aim of feeding into the combustion chamber of the combustion air, which together with the submitted into the combustion chamber a combustible material forms a combustible air-fuel mixture, and produced by combustion of this mixture thermal energy, for example, the heat exchanger is transferred to the air, floating for heating the inner space of the vehicle.

These are used in heating appliances vehicles air fans, in particular, at low ambient temperatures, in accordance with operational requirements are subject to significant temperature fluctuations. The latter can have a negative impact, in particular, the closure of the electrical contact, which is implemented, in General, by means of solder or plug-in connections, so because of this cannot be ensured reliable contact. Arising in the process will atopica inogo device of the vehicle or during operation of the vehicle vibration can also have a negative impact on the closure of the electric contact of the fan drive.

The task of the proposed invention is the creation of fan air, which, compared to traditional air fans, has a more reliable electrical contact of the fan air.

In accordance with the invention this problem is solved by means of fan air, in particular, for the heater of the vehicle containing the electric fan, and driven by the fan drive the fan wheel, and the closure of the electric contact of the fan drive is carried out using spring contacts.

The use of spring contacts allows, on the one hand, due to the

called spring contacts the elastic force of the spring, effectively offset due to temperature variations affecting the closure of the electrical contact, distortions, and, on the other hand, effectively quenching arising during operation of the fan air vibration. Thus, it is possible to prevent the known shortcomings with conventional contact closure, by providing in General a more reliable mode of operation of the fan air.

The design of the fan air can be one that is connected to the fan drive the fan casing in the full koltseobrazno located around the axis of rotation, open for axial blocked by the fan wheel side channel blower with an inlet area and separated by zones of interrupts from the inlet zone outlet zone, and in the fan casing is provided with an opening through which passes directly connected to the fan wheel air for joint rotation of the drive shaft fan drive.

In a preferred embodiment of the invention can be provided that ensure circuit electrical contact in engagement with the spring contacts are provided placed in them locking pins.

Thus, the spring contacts can be made, for example, in the form of a flat spring, which upon contact, the capture state of the clamping pins on the large area the area adjacent to them, in consequence of which, on the one hand, there is a reliable closure of the electrical contact, and, on the other hand, there is no need to demand when using, for example, the spring contact pins, mechanical means of fastening. Despite the fact that locking pins and are made for example in the form of flat springs, spring contacts, in principle, can be used a large number of electrically conductive materials, in particular, for high mechanical stability predpochtitelnye the use of flat springs and locking pins, made from metal.

The design can be further such that interaction with the fan drive is provided by the control device. Use the device management enables the coordination mode of operation of the fan drive mode other areas of the system, for example, zone of the combustion chamber, the temperature of which, in General, is an important parameter to work or to adjust the fan air.

In a preferred embodiment of the invention can be provided that the control device is located in the area of the fan drive.

This measure allows a compact design of the fan air. You can think, for example, about how to place the control unit and the fan motor in a common housing or to provide a means of fastening, which allow a simple way to combine the relevant parts of the device control and fan drive in a single housing. In addition, with this design, no long in relation to the dimensions of the fan air connecting wires between the control unit and the fan drive so that you can abandon appropriate means for gripping or fastening of the connecting wires, resulting in the structure as a whole is simplified./p>

To be able to completely abandon the connecting wires between the control unit and the fan drive, the design can be such that the location of the control devices in the area of the fan drive is provided which includes a spring contact means of fastening. In the preferred embodiment can be provided that the control device is attached to the fan drive using placed in a spring-loaded terminals locking pins.

Thus, the spring contacts can be formed, for example, of two flat springs, which in a non-contact state are smaller in comparison with the thickness of the locking pins, the gap between them. Due to the introduction of locking pins to the spring contacts both of the flat spring presses from each other, so that the force acting at this stabilizing efforts of the flat springs occurs mechanically stable frictional connection between the clamping pin and the spring contact.

In principle, there are no restrictions on the location of the locking pins and spring pins on the fan motor or the control device. Thus, the mechanical connection between the control unit and the fan drive can be performed by the device control the AI and the fan drive is placed, accordingly, the locking pin and a spring contact, respectively, at equal distances in the corresponding location of the control device relative to the fan drive positions. Since, in principle, easier to install locking pins in the control Board, for example, by soldering, than to put the spring contacts on the control unit, it is preferable structure in which the spring contacts mounted on the fan drive, and locking pins on the controller.

For the exact location of the locking pins and spring contacts, in principle, there are so many possibilities. As for simplified mounting of the unit on the fan drive, it is preferable, however, when the control device is arranged to secure the fan drive through mostly perpendicular or parallel to rotation axis of movement.

The subject of the invention is also the heater of the vehicle, including air fan according to the invention.

The invention is illustrated by drawings, which presents the following: figure 1 is a longitudinal section of the fan air in accordance with the invention; figure 2 is an alternative design of the fan air Phi is. 1; Fig.3 is a cross section along the line III-III of figure 1;

figure 4 - fan air separated from the fan drive control device according to figure 3.

Figure 1 shows the marked overall position 10 air fan. It contains the actuator 14 of the fan with a longitudinally positioned along the axis of rotation of the drive shaft 12 and wheel 16 of the fan, which in the zone 18 of the hub connected to the drive shaft 12 for joint rotation axis And rotation. The actuator 14 of the fan has a housing that includes a wall 14a on the periphery and the wall 14b from the front side.

In the United actuator 14 of the fan casing is made mostly koltseobrazno located around the axis And rotation of the channel 22 of the fan, which is open in the axial direction, facing toward the wheel 16 of the fan side. The fan wheel 16 has a corresponding channel 22 of the fan air and, respectively, opposite to him and opened in the direction of him, a ring-shaped groove 17, in which in the direction of the periphery, followed one after another, there are several transporting grippers. In figure 1 are not depicted leading to the channel 22 of the fan air inlet area, leading from the channel 22 of the fan outlet area, as well as separating the area of the interruption. The housing 20 of the fan has a hole 24, cher is C which passes the drive shaft 12.

Presented in figure 1, designated as a whole as the fan side channel fan 10 air is often used in heating appliances vehicles, with the aim of feeding into the combustion chamber of the combustion air, which together with the submitted into the combustion chamber a combustible material forms a combustible air-fuel mixture. Generated by the combustion of the mixture thermal energy, for example, the heat exchanger is transferred to the air transported into the interior of the vehicle, for example, by means of the second mounted on axially opposite the wheel 16 of the fan air the end of the drive shaft 12, in figure 1, however, not illustrated, fan wheels for air.

To control the operation of the actuator 14 of the fan, as well as for coordination with other areas of the system in this embodiment is provided by the device 26 of the control, which contains mainly the housing 28, the card 30 control, and two mounted on the circuit Board 30 controls the clamping of the pin 32. In shown in Fig. 1 embodiment, locking pins 32, as seen in cross section from figure 3, are located in the plane perpendicular to the axis And rotation.

To lock the device 26 controls the actuator 14 of the fan leaf plots locking pins 32 are placed in a CR is Ginnie contacts 34, which, as obvious from Fig 1, 3 and 4, is available through the wall 14a on the periphery. In this embodiment, a spring-loaded contacts 34 have two flat springs 36, which are mounted in position on the actuator 14 of the fan device 26 controls adjacent to the locking pins 32. Despite the fact that locking pins 32 and flat springs 36, in principle, can be used a large number of electrically conductive materials, in particular, for high mechanical stability, it is preferable to use flat springs 36 and locking pins 32, made of metal.

Figure 4 shows the position in which the device 26 controls not mounted on the actuator 14 of the fan. As can be seen in this figure, the minimum distance R between the flat springs is clearly less than the thickness q of the clamping pins 32, so that with the introduction of locking pins 32 to the spring contacts 34 of the flat spring 36 presses from each other, whereupon, due to the resulting stabilizing efforts, is formed mechanically stable contact. Thus, no matter due to thermal effects of distortions or arising in the process of vibration between the device 26 and control the actuator 14 of the fan ensures reliable electrical contact.

Location is the locking pins 32, as well as the respective spring contacts 34 in perpendicular to the drive shaft plane, as represented in figures 1, 3 and 4 embodiment of the invention, arbitrarily. It is also possible location in parallel to the axis And rotation plane or any other location of the respective pairs of clamping pin - spring contact, without derogating from the General inventive concept.

Next, on the basis of figure 2 describes the following preferred embodiment of the fan air in accordance with the invention.

The same or functionally similar structural elements as in figures 1, 3 and 4 are denoted by the same reference position, however, already the next order. Presented at the figure 2 embodiment of the invention is described only to the extent that it differs from the first preferred option run at 1, 3 and 4.

I presented on figure 2 of the fan 110 air electrical contact of the actuator 114 of the fan is also using includes flat spring 136 of the spring contacts 134 and placed in it locking pins 132. Locking pins 132 is also mounted on circuit Board 130, the control unit 126 controls. Unlike the first preferred variant implementation of the invention, the locking pins 132 are made, however, bent under glam, so when the positioning device 126 control corresponding to the first variant implementation of the invention, relative to the actuator 114 of the fan, they are placed in a spring-loaded terminals 134, which, however, are available through the wall 114b from the front side of the housing 114 of the fan.

Both variants of execution of the invention of figure 1 and 2 differ, therefore, from each other mainly in relation to the fastening device control on the fan drive. While the device 26 according to the first embodiment is arranged to secure the actuator 14 of the fan through mainly perpendicular movement relative to the axis of rotation, due to the introduction of locking pins 32 to the spring contacts 34, the device 126 according to the second variant implementation of the invention made with the possibility of fixing the actuator 114 of the fan by means of, basically, a parallel movement about an axis of rotation, due to the introduction of locking pins 132 in the spring contacts 134.

Presented here is a variant of the fixing device 26, 126 control means is placed in a spring-loaded contacts 34, 134 of the locking pins 32, 132 is a very easy way of fastening. In principle, thereby, however, should not be excluded the possibility of critique is sustained fashion, for example, including threaded connections, fastening means, in particular, when you require a particularly stable fastening device management.

1. The fan for the heater of the vehicle containing the actuator (14; 114) of the fan and configured to actuate by means of the actuator (14; 114) of the fan wheel (16; 116), and the closure of the electric contact of the actuator (14; 114) of the fan is carried out by means of spring contacts (34; 134), and is connected to the actuator (14; 114) fan housing (20; 120) fan made koltseobrazno located around the axis (A) of rotation, open for axial covered wheel (16; 116) fan side channel (22; 122) of the fan inlet area and separated by zones of interrupts from the inlet zone outlet zone, and in the housing (20; 120) of the fan has a hole (24; 124), through which passes directly connected to the wheel (16; 116) of the fan for jointly rotating the drive shaft (12; 112) of the actuator (14; 114) of the fan.

2. The fan according to claim 1, containing clamping pins (32; 132), located in spring contacts (34; 134) to provide a circuit of the electrical contact in engagement with spring contacts (34; 134).

3. The fan according to claim 1 or 2, in which to interact with the actuator is m (14; 114) the fan is provided by the device (26; 126) of the control.

4. The fan according to claim 3, in which the device (26; 126) the control is located in the drive area (14; 114) of the fan.

5. The fan according to claim 4, in which the fastening means containing a spring-loaded contacts (34; 134), designed for positioning of the device (26; 126) management in the area of the actuator (14; 114) of the fan.

6. The fan according to claim 2 or 5, in which the device (26; 126) control mounted on the actuator (14; 114) fan with located in spring contacts (34; 134) of the clamping pins (32; 132).

7. The fan according to claim 6, in which the spring contacts (34; 134) is installed on the actuator (14; 114) fan, and locking pins (32; 132) on the device (26; 126) of the control.

8. The fan according to claim 6, in which the device (26; 126) is a control with the possibility of fixing the actuator (14; 114) fan through mainly perpendicular or parallel relative to the axis (A) of rotation of the movement.

9. The fan according to claim 7, in which the device (26; 126) is a control with the possibility of fixing the actuator (14; 114) fan through mainly perpendicular or parallel relative to the axis (A) of rotation of the movement.

10. The heater of the vehicle containing the fan (10; 110) according to any one of claims 1 to 9.



 

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