JPH0740215U - Inside air suction structure for inside air sensor of vehicle air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to reduce the installation space of the inside air sensor and reduce the number of parts. An aspirator is provided in which an inside air suction duct 3 that communicates with the inside and outside of the vehicle compartment is provided, an outlet pipe 5 is formed in an in-vehicle unit 4, and the outlet portion of the outlet pipe 5 is disposed inside the exhaust portion of the inside air suction duct 3. 2, the inside air sensor 6 is attached to the inside air suction duct 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inside air suction structure for an inside air sensor of a vehicle air conditioner.

[0002]

[Prior art]

 Conventionally, an inside air sensor for detecting the temperature inside the vehicle compartment is fixed to the inner wall of the instrument panel in the front part of the vehicle while being attached to the holder. One end of the inside air suction duct is connected to the holder, and the other end of the inside air suction duct is located inside the blowout pipe formed in the cooler unit, and constitutes a kind of aspirator by opening in the blowout direction. There is. The aspirator drives the blower to increase the pressure inside the unit, and when the air inside the unit is exhausted through the blow-out pipe, the other end of the inside air suction duct is set to a negative pressure to suck in the air inside the vehicle. It is something that is done.

[0003]

[Problems to be solved by the device]

 However, as described above, a holder is required for attaching the inside air sensor to hold the inside air sensor and to connect the inside air suction duct. For this reason, there has been a problem that the number of parts increases and the mounting space increases. Further, in order to expand the vehicle interior space, it has been desired to reduce the installation space of the inside air sensor. In view of the above problems, it is an object of the present invention to provide an inside air suction structure for an inside air sensor of a vehicle air conditioner that can reduce the installation space of the inside air sensor and the number of parts.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an inside air suction duct at a position for sucking air in the vehicle interior, forms an outlet pipe in the in-vehicle unit, and places the outlet portion of the outlet pipe in the exhaust portion of the inside air suction duct. While arranging to form an aspirator, an inside air sensor is attached to an inside air suction duct located in the aspirator.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an inside air suction structure for an inside air sensor provided in a front portion of a vehicle, and an instrument panel 1 is provided with an aspirator 2. As shown in FIG. 2, the aspirator 2 has an inside air suction duct 3 communicating with an opening 1a formed in the instrument panel 1, one end communicates with a cooler unit 4, and the other end has an outer periphery of the inside air suction duct 3. And a blow-out pipe 5 forming a part.

An inside air sensor 6 is attached to the inside air suction duct 3. As shown in FIG. 3, the inside air sensor 6 is positioned in the inside air suction duct 3 by attaching the connector 7 to a mounting portion 8 formed in the inside air suction duct 3 in a state of being integrated with the connector 7. It has become so.

The connector 7 has a substantially rectangular parallelepiped shape, on the bottom surface of which engaging pieces 9 project from four convenient points, and at the tip of each engaging piece 9, an engaging claw 10 that bends laterally is formed. Has been done. Further, one end of the terminal board 11 projects from the bottom surface of the connector 7, and the inside air sensor is soldered to the tip of the terminal board 11 in a substantially perpendicular direction (this direction may be any direction with respect to the air flow direction). 6 is attached. For example, a thermistor can be used as the inside air sensor 6, and the inside air temperature can be detected by detecting the voltage value based on the resistance value that changes according to the ambient atmosphere temperature.

Further, at one end of the connector 7, a connection recess 12 is formed in which the other end of the terminal plate 11 connected to a terminal (not shown) is formed, and locking claws 13 project from both side surfaces. The other end is an inclined surface having a recess in the center.

On the other hand, the mounting portion of the inside air suction duct 3 includes a recess 14 in which the bottom surface of the connector 7 is located, and a mounting hole 15 formed in the bottom surface of the recess 14. The concave portion 14 is formed from the end surface of the mounting portion, and a locking concave portion 16 in which the locking claw 13 of the connector 7 is located is formed therein. Further, the dimension between the side edges of the mounting hole 15 is substantially equal to the distance between the outer surfaces of the engaging pieces 9 facing each other in the width direction of the connector 7, so that the locking claws 10 of the engaging pieces 9 can be inserted into the side edges. The notch 17 is formed in the.

As described above, one end of the blow-out pipe 5 communicates with the cooler unit 4, and the air sucked into the unit 4 is blown out by the rotation of a blower (not shown) provided on the upstream side in the unit 4. It has become so. The other end of the blow-out pipe 5 constitutes an aspirator 2 together with the tip of the inside air suction duct 3.

As described above, the inside air sensor 6 is directly attached to the inside air suction duct 3 forming the aspirator 2 and is compact. Further, as described above, the mounting structure of the inside air sensor 6 is a very simple structure in which the connector 7 in which the inside air sensor 6 is integrated is engaged with the mounting portion 8 formed in the inside air suction duct 3.

Then, when a blower (not shown) in the unit 4 is driven to suck the inside air or the outside air into the unit 4, the air pressure in the unit 4 rises, and the air in the unit 4 is blown out through the blowout pipe 5. To be done. The air blown out from the blow-off pipe 5 causes a negative pressure in the inside air suction duct 3, and the air inside the vehicle is exhausted through the inside air suction duct 3. At this time, the inside air flows around the inside air sensor 6 located inside the inside air suction duct 3, and the inside air temperature is detected.

The inside air suction structure for the inside air sensor shown in FIG. 4 connects the air hose 18 directly to the instrument panel 1, connects the inside air suction duct 3 to the other end of the air hose 18, and connects the aspirator 2 in the vicinity of the cooler unit 4. The inside air sensor 6 is provided in the inside air suction duct 3 of the aspirator 2 portion.

It is preferable that the inside air suction duct 3 of the aspirator 2 is a vacuum double tube so that the inside air sensor 6 is less affected by the temperature of the air blown out from the cooler unit 4.

[0015]

[Effect of device]

 As is apparent from the above description, according to the inside air suction structure for the inside air sensor of the vehicle air conditioner according to the present invention, the inside air sensor is attached to the inside air suction duct that constitutes the aspirator. Since the holder for mounting the inside air sensor is not required, the number of parts can be reduced and the occupied space can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an inside air suction structure for an inside air sensor according to the present embodiment.

FIG. 2 is a sectional view showing an aspirator portion of FIG.

FIG. 3 is an exploded perspective view showing a mounting structure of an inside air sensor to the inside air suction duct of FIG.

FIG. 4 is a cross-sectional view showing an inside air suction structure of an inside air sensor according to another embodiment.

[Explanation of symbols]

2 ... Aspirator, 3 ... Inside air suction duct, 4 ... Unit, 5 ... Outlet pipe, 6 ... Inside air sensor.

Claims (1)

[Scope of utility model registration request] 1. An inside air suction duct is provided at a position for sucking air in a vehicle interior, and an outlet pipe is formed in an in-vehicle unit,
An air conditioner for a vehicle, characterized in that the blow-out portion of the blow-out pipe is arranged in an exhaust portion of the inside-air suction duct to form an aspirator, and an inside-air sensor is attached inside the inside-air suction duct located in the aspirator. Inside air suction structure for inside air sensor.