JP7263790B2 - Air conditioning operating device - Google Patents

Description

The present disclosure relates to air conditioning operating devices for vehicles.

2. Description of the Related Art Conventionally, an air conditioning operation device that is mounted on a vehicle and used has been proposed. For example, Patent Literature 1 proposes a temperature measurement thermistor mounting structure for auto air conditioner control that enables the use of a chip thermistor without changing the structure of a conventional duct.

JP 2012-61879 A

However, in the mounting structure described above, the duct extends from the rear surface of the front case, which has a design surface on the front surface. It has become. Therefore, there is a risk that the design surface will be scratched or that foreign matter will enter the liquid crystal display portion provided on the design surface.

The present disclosure can be implemented as the following forms.

According to one aspect of the present disclosure, an air conditioning operating device is provided. The air conditioning operation device has a front case having a front surface and a back surface, the front surface having an intake portion, and a heat insulating cylinder which is disposed facing the back surface of the front case and integrally molded toward the front case. a substrate disposed between the front case and the rear case and having a mounting portion for disposing the thermistor in the heat shield cylinder; and a design portion disposed on the surface of the front case. And prepare. The suction part has a cylindrical shape protruding from the surface of the front case, and the rear case has a positioning pin (22) having a positioning part for positioning the front case and a positioning part for positioning the board. , 23, 24).
The air conditioning operation device of this form assembles the front case and the substrate toward the rear case, and suppresses the occurrence of scratches on the design surface of the air conditioning operation device and the entry of foreign matter into the liquid crystal display portion provided on the design surface. make it possible.

The front view of the front case of an air-conditioning operating device. The figure which looked at the air-conditioning operation device before assembly from the side. The figure which looked at the air-conditioning operation device from the side. 4 is an end view of section 4-4 shown in FIG. 3; FIG. 5 is an end view of section 5-5 shown in FIG. 1; FIG. The figure which expanded and displayed the position of the positioning pin. FIG. 7 is a diagram showing the positional relationship of the heat insulating cylinder in relation to the positions of the tip portions of the positioning pins in FIG. 6 ;

A. First embodiment:
[Configuration of air conditioning operation device]
As shown in FIGS. 1 and 2, an air conditioning operation device 100 according to this embodiment includes a front case 10, a rear case 20, a substrate 30 and a design portion 40. As shown in FIG.

The front case 10 includes a rectangular flat portion and four side portions connected to the four sides of the flat portion. The substrate 30 and the rubber 60 are arranged in the space formed by the four side parts when the assembly is completed. The flat portion of the front case 10 has a front surface forming a design surface and a rear surface forming the reverse side of the front surface. The front case 10 has an intake portion 11 that introduces the air in the passenger compartment into the front case 10 . The intake portion 11 has a through hole 11 a and a cylindrical portion surrounding the through hole 11 a and protruding from the surface of the front case 10 . Since the intake part 11 has a cylindrical part, it can cooperate with a heat shield cylinder 21 to be described later to realize heat shielding from the ambient temperature. A cap is provided at the tip of the tubular portion, and the cap has a slit and is divided into air inlets 11b and 11c. By narrowing the width of the slit, it is possible to suppress entry of dust and the like into the suction portion 11 . The front case 10 has a plurality of positioning holes 12a, 12b, 12c, 12d, 12e, and 12f for defining positions with respect to the rear case 20 during assembly. The front case 10 has a plurality of bolt holes 14a and 15a into which bolts 14 and 15 are inserted as fastening members during assembly. The front case 10 is formed by injection molding, and the planar portion of the front case 10 has an uneven shape for providing a plurality of functional portions which are omitted in FIGS.

The rear case 20 has a rectangular plate shape and is arranged to face the rear surface of the front case 10 . The rear case 20 has a surface facing the back surface of the front case 10 and a back surface forming the back side of the front surface. The rear case 20 has, at a position corresponding to the cylindrical portion of the front case 10 , a heat insulating tube 21 integrally formed to protrude from the surface of the rear case 20 toward the front case 10 . The heat shield tube 21 has a through hole 21a and a tubular portion surrounding the through hole 21a, and the through hole 21a communicates with, for example, an aspirator. The rear case 20 has a plurality of nut holes 14b, 15b at positions corresponding to the bolt holes 14a, 15a of the front case 10. As shown in FIG. Furthermore, the rear case 20 has a plurality of positioning pins 22 , 23 , 24 protruding from the surface toward the front case 10 . The positioning pins 22, 23, and 24 have a stepped shape, and the rear case 20 and the front case 10 are positioned by engaging the positioning holes 12a, 12c, and 12e of the front case 10 at their tips. 2, the horizontal and vertical positions of the substrate 30 with respect to the rear case 20 are defined. This suppresses the thermal influence of the substrate 30 on the rear case 20 .

The board 30 is arranged between the front case 10 and the rear case 20 . As shown in FIG. 2, the substrate 30 has a hole 31a through which the heat insulating tube 21 is passed. Further, the substrate 30 has a plurality of holes 34a, 35a at positions corresponding to the bolt holes 14a, 15a through which the bolts 14, 15 are passed from the front case 10. As shown in FIG. Further, the substrate 30 has holes 322, 323, 324 through which the positioning pins 22, 23, 24 pass. Further, as shown in FIG. 4, the substrate 30 has a mounting portion 33 on which the thermistor 32 is arranged. The mounting portion 33 is desirably separated from the heat generating portion of the substrate 30 . The mounting portion 33 is positioned inside the heat insulating tube 21 after assembly. The vehicle interior air sucked through the tubular intake portion 11 is introduced into the heat shield tube 21 , passes through the mounting portion 33 , and the temperature of the vehicle interior air is detected by the thermistor 32 .

The design portion 40 is arranged on the surface of the front case 10 . As shown in FIG. 1, the design section 40 is composed of design parts and a display.

Rubber 60 is arranged between front case 10 and substrate 30 . The rubber 60 is arranged to prevent moisture from entering from the front case 10 and adhering to the substrate 30 . As shown in FIG. 2, the rubber 60 has a plurality of holes 64a and 65a at positions corresponding to a hole 61a through which the heat insulating tube 21 penetrates and bolt holes 14a and 15a through which the bolts 14 and 15 from the front case 10 pass. have. Further, the rubber 60 has holes 622, 623, 624 through which the positioning pins 22, 23, 24 are passed.

[Assembly of air conditioning operation device 100]
When assembling the air-conditioning operation device 100, the rear case 20 is prepared so that the rear surface is in contact with the work surface. Next, the substrate 30 is placed while being positioned by the positioning pins 22 , 23 and 24 . Next, the rear surface of the front case 10, which is equipped with design parts and display on the front surface, is opposed to the substrate 30, and the front case is mounted so that the positioning pins 22, 23, 24 and the positioning holes 12a, 12c, 12e are engaged with each other. 10 is assembled to the rear case 20 . As with the positioning holes 12a, 12c, and 12e, the positioning holes 12b, 12d, and 12f shown in FIG. 1 are also engaged with positioning pins to assemble the air conditioning operation device 100. Subsequently, the bolts 14, 15 are inserted through the bolt holes 14a, 15a of the front case 10 toward the nut holes 14b, 15b of the rear case 20, and the bolts 14, 15 are tightened. Finally, the assembly of the air-conditioning operation device 100 is completed by installing separate parts such as an air-conditioning dial. The board 30 is included in the front case 10 in the air conditioning operation device 100 after the completion of assembly.

As described above, the air-conditioning operation device 100 of the present embodiment has the rear case 20 provided with the heat insulating tube 21 and the nut holes 14b and 15b. 30, the rubber 60, and the front case 10 can be assembled in this order. Therefore, it is possible to assemble the air-conditioning operation device 100 without bringing the surface of the front case 10 into contact with the work surface to assemble the air-conditioning operation device 100, and damage to the design surface located on the surface of the front case 10 is avoided. Also, it is possible to suppress foreign matter from entering the liquid crystal display part.

B. Second Embodiment An air conditioning operation device according to a second embodiment has the same configuration as the air conditioning operation device 100 according to the first embodiment. The same reference numerals as the used reference numerals are assigned to omit the description, and different configurations will be described with reference to FIGS. 6 and 7. FIG. In the air conditioning operation device 100 of the second embodiment, the height X of the positioning pins 22 , 23 , 24 is a higher than the height of the heat insulating tube 21 . Therefore, it is possible to suppress the formation of a gap between the front case 10 and the rear case 20 during assembly due to the contact of the heat insulating tube 21 with the rear surface of the front case 10 . Also, the clearance dimension c between the positioning pins 22 , 23 , 24 and the holes 322 , 323 , 324 of the substrate 30 is smaller than the clearance dimension b between the heat insulating tube 21 and the holes of the substrate 30 . As a result, displacement of the substrate 30 with respect to the rear case 20 in the horizontal direction and the vertical direction is suppressed, and for example, the thermistor can be arranged at a desired position.

C. Other Embodiments Air-conditioning operating device 100 as another embodiment does not need to arrange waterproof rubber 60 between front case 10 and substrate 30 . The front case 10, the rear case 20, and the substrate 30 may be composed of three layers.

The present disclosure is not limited to the embodiments described above, and can be implemented in various configurations without departing from the scope of the present disclosure. For example, the technical features of the embodiments corresponding to the technical features in each form described in the outline of the invention are used to solve some or all of the above problems, or Alternatively, replacements and combinations can be made as appropriate to achieve all. Also, if the technical features are not described as essential in this specification, they can be deleted as appropriate.

REFERENCE SIGNS LIST 10 front case 11 intake section 20 rear case 21 heat shield cylinder 30 substrate 32 thermistor 33 placement section 40 design section 100 air conditioning operation device

Claims (2)

An air conditioning operation device (100),
a front case (10) having a front surface and a back surface, and having an intake portion (11) on the front surface;
a rear case (20) arranged to face the rear surface of the front case and integrally formed with a heat insulating cylinder (21) facing the front case;
a substrate (30) disposed between the front case and the rear case and having a mounting portion (33) for disposing a thermistor (32) in the heat shield cylinder;
a design portion (40) arranged on the surface of the front case;
with
the suction part has a tubular shape protruding from the surface of the front case,
The air conditioning operating device, wherein the rear case includes positioning pins (22, 23, 24) having positioning portions for positioning the front case and positioning portions for positioning the circuit board. An air conditioning operation device (100),
a front case (10) having a front surface and a back surface, and having an intake portion (11) on the front surface;
a rear case (20) arranged to face the rear surface of the front case and integrally formed with a heat insulating cylinder (21) facing the front case;
a substrate (30) disposed between the front case and the rear case and having a mounting portion (33) for disposing a thermistor (32) in the heat shield cylinder;
a design portion (40) arranged on the surface of the front case;
with
The rear case includes positioning pins (22, 23, 24) for positioning the front case,
The air conditioning operation device, wherein the height of the positioning pin is higher than the height of the heat insulating tube.

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