JP4556182B2 - Aspirator mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for an aspirator used for detecting the temperature in a passenger compartment.

In an automobile air conditioner, an aspirator that guides air in the vehicle interior to a thermistor is used to detect the temperature of the air in the vehicle interior. For example, as shown in Patent Document 1, the aspirator includes an aspirator body 3 and a support tube portion 11 that supports the aspirator body 3, and the support tube portion 11 is fitted into a mounting hole 7 formed in the unit case 1, and the aspirator The base tube portion 12 supporting the main body 3 and the support tube portion 11 are configured as a spherical joint connection. In this aspirator, a dedicated mounting hole 7 for guiding temperature-controlled air serving as the primary air is provided as a unit. Case 1 is formed.
JP2000-6634

Also in Patent Document 2, as in Patent Document 1, a dedicated air introduction hole 31 is formed in the air-conditioning case 2, and temperature-controlled air serving as primary air for the aspirator 32 is led from there.
JP 2003-63233 A

  As described above, the aspirator has a dedicated mounting hole in the air conditioning case in order to extract the temperature-controlled air that is the primary air. That is, a dedicated installation space is occupied. This means that the interference with the installation space of other equipment provided on the surface of the air conditioning case must be adjusted, and not only the cost of the mold is increased, but also depending on where the mounting holes are formed, There are inconveniences that the aspirator hose becomes long or the connectivity with the aspirator hose deteriorates.

  In view of the above, the present invention aims to eliminate the above-mentioned inconvenience, and provides an aspirator mounting structure in which a dedicated mounting hole is not provided.

  In order to achieve the above object, an aspirator mounting structure according to the present invention includes a temperature adjusting means for adjusting the temperature of flowing air, and a delivery port in which the temperature adjusted by the temperature adjusting means is selected in accordance with the blowing mode. In the air conditioning case having the blowing mode switching means for guiding to the inside, a link mechanism for automatically opening and closing the delivery port is provided on one surface of the air conditioning case, and the delivery port is manually selected on the other surface. An attachment boss for a link mechanism for performing is formed, and an aspirator for an inside air sensor used at the time of auto is attached to the attachment boss for the link mechanism for performing manually. ).

  As a result, in order to make the air conditioning control auto and manual common, link mechanisms for blowout mode door control are provided at two locations outside the air conditioning case, respectively. An attachment boss for a link mechanism that is controlled is not used, and an aspirator is attached to the attachment boss. Therefore, since a dedicated mounting boss is not required, the degree of freedom of arrangement of other devices can be improved, and the molding die cost can be reduced.

  The aspirator has an attachment portion that is attached to the air conditioning case, and the attachment portion serves as an inflow portion of the conditioned air and has a wedge-shaped claw. Thus, by attaching the attachment portion to the attachment boss formed on the air conditioning case, the conditioned air can be taken out immediately from the inflow portion of the attachment portion, and attached to the attachment boss with one touch with a wedge-shaped claw.

  As described above, according to the present invention, it is configured that the link mechanism for the blowout mode door control is provided at two locations for each of the air conditioning control auto and the manual outside the air conditioning case, and the manual control is performed during the auto control. Since the attachment boss for the link mechanism to be used is not used and an aspirator is attached to this attachment boss, it is not necessary to provide a dedicated attachment boss for attaching the aspirator. This increases the degree of freedom and can contribute to lowering the cost of forming the mold.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2, an automotive air conditioner 1 is shown. FIG. 1 is a right side view and FIG. 2 is a left side view. The example shown in FIG. 1 is used at the time of air conditioning manual control, and a blow mode control link mechanism 3 for that purpose is provided on the right side surface of the air conditioning case 2. The example shown in FIG. 2 is used at the time of automatic control of air conditioning, and a link mechanism 4 for controlling the blowing mode for that purpose is provided on the left side surface of the air conditioning case 2. In this way, air conditioning control is selectively used by auto or manual control, FIG. 1 is used during manual control, naturally the link mechanism 4 of FIG. 2 is removed, and FIG. 2 is used during auto control. Of course, the link mechanism 3 of FIG. 1 is removed.

  The air conditioning case 2 has the same specifications as manual control and automatic control. In the air conditioning case 2, an evaporator 6 constituting a cooling cycle, a heater core 7 to which engine cooling water is supplied, and cold air obtained therefrom are used. And an air mix door (not shown) for determining the mixing ratio between the air and the warm air, and a blow mode door (not shown) for blowing appropriately conditioned air into the passenger compartment according to the blow mode. Yes.

  The air conditioning case 2 is supplied with blown air from a blower unit (not shown) disposed on the left side and blown from the connection port 9. Then, this air is cooled by the evaporator 6 and cooled to cool air, and then the heater core 7 is heated by a predetermined amount as compared to the opening of the air mix door to be warmed, and then cool air is blown on the downstream side. And adjusted to a desired temperature. Then, in accordance with the selected blowing mode, the air is blown into the vehicle interior from the vent outlet 10, the defrost outlet 11, and the foot outlet 12, and air conditioning of the passenger compartment is performed.

  In FIG. 1 of the example at the time of manual control, a blower mode switching link mechanism 3 is provided on the right side surface 2a of the air conditioning case 2. The link mechanism 3 includes a large main link plate 13 and a lever that is driven by the link mechanism 3. 14, 15, and 16, which are not shown, but are rotatably attached to the mounting boss of the air conditioning case 2 (shown in FIG. 3).

  In addition, 17 is a rotation axis of the main link plate 13, 19 is an axis for opening / closing control of the foot outlet 12, 20 is an axis for opening / closing control of the vent outlet 10, and 21 is an opening / closing control of the defrost outlet 11. Although not shown, a control door is fixed to each shaft.

  In the example of FIG. 2 at the time of auto control, a link mechanism 4 for switching the blowing mode is provided on the left side surface 2b of the air conditioning case 2, and the link mechanism 4 includes a large main link plate 23 and a lever that is driven by the link mechanism 4. 24, 25, and 26 are arranged, and each of them is rotatably attached to an attachment boss of the air conditioning case 2 although not shown.

  In addition, 27 is a rotation axis of the main link plate 23, 28 is an axis for opening / closing control of the foot outlet 12, 29 is an axis for opening / closing control of the vent outlet 10, and 30 is an opening / closing control of the defrost outlet 11. Although not shown, a control door is fixed to each shaft. Reference numeral 33 denotes a motor actuator that rotates the main link plate 23, and reference numeral 35 denotes a motor actuator that rotates a shaft 36 of an air mix door (not shown).

  When the automobile air conditioner 1 adopts the above-described air-conditioning auto control shown in FIG. 2, the link mechanism 3 shown in FIG. 1 is not attached, and as shown in FIG. Mounting bosses 35, 36, and 37 are shown on the right side surface of the air conditioning case 2. The main link plate 13 is mounted on the mounting boss 35, the lever 14 is mounted on the mounting boss 36, and the lever 15 is mounted on the mounting boss 37. For example, the aspirator 41 is attached to the attachment boss 37.

  The aspirator 41 is generally shown in FIG. 4, and includes an aspirator body 42 that serves as a negative pressure generating portion, a sensor mounting portion 44 having a temperature sensor 43 such as a thermistor, and a hose 45 that connects the two. 42 is composed of a primary nozzle 46, a secondary nozzle 47 that encloses the primary nozzle 46, and a mounting portion 48 that is connected to and orthogonal to the secondary nozzle 47.

  The mounting portion 48 is a hollow cylindrical body that serves as an inflow portion 49 and has a split groove 49 in the vertical direction. And the wedge-shaped nail | claw 51 is formed in the front-end | tip, and also has the collar 52 in the base part side. The diameter D of the mounting portion 48 is equal to the diameter of the mounting boss 37 described above, but has a slightly larger dimension.

  In the above-described configuration, when the auto control is employed, the aspirator 41 inserts its mounting portion 48 into the mounting boss 37 of the lever 25 as shown in FIG. deep. Thereby, attachment is completed by one touch, it latches by the nail | claw 51, and does not remove | deviate.

  Then, the sensor attachment portion 44 is arranged at a predetermined position, and the hose 45 is connected between the sensor attachment portion 44 and the aspirator body 42 to complete. As described above, if the mounting bosses 35, 36, and 37 of the link mechanism 3 for manual control are appropriately selected and used, the conditioned air can be led out and used as the primary air of the aspirator 41. That is, there is an advantage that a dedicated mounting boss for mounting the aspirator 41 is not required.

FIG. 5 is a right side view of an example in which manual control is employed in the automotive air conditioner according to the present invention. 1 is a left side view of an example in which an auto control is employed in an automotive air conditioner according to the present invention. It is a perspective view explaining the example which attaches an aspirator to the air conditioning case right side surface at the time of employ | adopting the same auto control. It is a front view of an aspirator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automotive air conditioner 2 Air conditioning case 3 Link mechanism 4 Link mechanism 6 Evaporator 7 Heater core 13 Main link plate 14 Lever 15 Lever 16 Lever 23 Main link plate 24 Lever 25 Lever 26 Lever 35 Mounting boss 36 Mounting boss 37 Mounting boss 41 Aspirator 42 Aspirator body 43 Temperature sensor 44 Sensor mounting part 45 Hose 48 Mounting part 51 Claw

Claims (2)

In an air conditioning case having therein temperature control means for adjusting the temperature of the flowing air, and blowout mode switching means for guiding the air temperature-controlled by this temperature control means to the outlet selected according to the blowout mode,
A link mechanism for automatically selecting the delivery port is provided on one surface of the air-conditioning case, and a mounting boss for a link mechanism for manually opening and closing the delivery port is formed on the other surface. An aspirator mounting structure characterized in that an aspirator for an inside air sensor used in auto mode is mounted on a mounting boss for a link mechanism to be used in the above.   2. The aspirator mounting structure according to claim 1, wherein the aspirator has a mounting portion for mounting to an air conditioning case, the mounting portion also serves as an inflow portion of the conditioned air, and has a wedge-shaped claw.

Images