Automobile air conditioner cooling and heating gear limiting structure

Abstract

The utility model provides an automobile air conditioner cooling and heating gear limiting structure which comprises an actuator, a supporting base, a connecting base, a movable base, a positioning sliding base, a positioning sliding groove, a travel switch and a movable groove. A transmission shaft is fixed to the lower end face of the output end of the actuator, and a cooling and heating gear is fixed to the lower end face of the transmission shaft and connected with a cooling and heating air door shifting rod in an engaged mode. A connecting shaft sleeve is fixed to the outer side of the annular face of the air door shaft, a cold and warm air door is fixed to the left end face of the connecting shaft sleeve, a supporting base is arranged on the lower end face of the air door shaft, a connecting base is fixed to the front end face of the air door shaft, and a movable base is fixed to the front end face of the connecting base. The movable groove is formed in the supporting base and movably connected with the movable seat, the positioning sliding groove is formed in the supporting base, and the movable seat touches the travel switch to enable the actuator to stop running, so that the air door shaft is protected from being broken due to overload impact of the actuator, and normal use of functions of the cold and warm air door can be guaranteed.

Description

Technical Field

[0001] The utility model discloses a cooling and heating gear limiting structure for an automobile air conditioner, belonging to the technical field of automobile air conditioners. Background Art

[0002] Currently, in the automotive HVAC (heating, ventilation and air conditioning) assembly, the actuator drives the heating and cooling gears at the bottom to rotate, and the heating and cooling gears then drive the heating and cooling air door levers to rotate, and the levers control the closing or opening of the heating and cooling air doors. When the actuator or the vehicle panel control program fails, the heating and cooling gears may continue to drive the heating and cooling air door levers to rotate. When the continuous rotation force is too great, it is likely to cause gear damage and even cause the air door shaft to break.

[0003] After searching the Chinese patent number: CN219727810U, a car air-conditioning cooling and heating gear limiting structure was found. This design can release the torque originally applied to the damper shaft on the ribs of the cooling and heating gears, thereby achieving the purpose of avoiding the damper shaft from breaking, and also simplifies the design, ensuring the realization of the cooling and heating damper functions, thereby realizing the cooling or heating of the air conditioner. However, the ribs on the cooling and heating gears will also break under long-term impact, thereby failing to ensure the normal use of the cooling and heating damper functions. Now, a car air-conditioning cooling and heating gear limiting structure is urgently needed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a car air-conditioning heating and cooling gear limit structure to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure. The design enables the actuator to stop running by touching the travel switch through the movable seat, thereby protecting the damper shaft from being broken by the actuator overload impact, thereby ensuring the normal use of the heating and cooling damper functions.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a limit structure of a heating and cooling gear of an automobile air conditioner, comprising an actuator, a supporting base, a connecting base, a movable base, a positioning slide, a positioning slide, a travel switch and a movable slot, a transmission shaft is fixed to the lower end surface of the output end of the actuator, a heating and cooling gear is fixed to the lower end surface of the transmission shaft, the heating and cooling gear is meshedly connected with a heating and cooling door lever, and a damper shaft is fixed to the lower end surface of the heating and cooling door lever;

[0006] A connecting sleeve is fixed to the outer side of the damper shaft ring surface, a cold and warm air damper is fixed to the left end face of the connecting sleeve, a supporting base is arranged on the lower end face of the damper shaft, a connecting seat is fixed to the front end face of the damper shaft, a movable seat is fixed to the front end face of the connecting seat, a movable groove is provided inside the supporting base and is movably connected to the movable seat, a positioning slide groove is provided inside the supporting base, a positioning slide is connected to the rear end face of the movable seat and is slidably connected to the positioning slide groove, and a travel switch is fixed inside the movable groove.

[0007] Furthermore, the specifications of the cooling and heating gear match the specifications of the cooling and heating air door lever, and the two can be fitted and meshed and connected.

[0008] Furthermore, threaded holes are provided inside the connecting sleeve and the damper shaft, the inner diameter of the connecting sleeve is equal to the outer diameter of the damper shaft, and the two can be fitted and connected.

[0009] Furthermore, the specification of the movable seat matches the specification of the movable groove, and the two can fit and slide in connection.

[0010] Furthermore, the specification of the positioning slide seat matches the specification of the positioning slide groove, and the two can fit and slide together.

[0011] Furthermore, a rotating hole is opened inside the support base, the inner diameter of the rotating hole is equal to the outer diameter of the damper shaft, and the two can fit together and be rotatably connected, and the travel switch, positioning slide, positioning slide, movable seat, movable groove, connecting seat and support base constitute a protective assembly.

[0012] The beneficial effects of the utility model: the utility model is a car air-conditioning heating and cooling gear limiting structure. Since the utility model adds a supporting base, a connecting seat, a movable seat, a positioning slide seat, a positioning slide groove, a travel switch and a movable groove, the design enables the actuator to stop running by touching the travel switch through the movable seat, thereby protecting the damper shaft from being broken by the actuator overload impact, thereby ensuring the normal use of the heating and cooling air door functions, and solving the problem that the ribs on the heating and cooling gears of the original car air-conditioning heating and cooling gear limiting structure will also break under long-term impact, thereby failing to ensure the normal use of the heating and cooling air door functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of a limit structure of a cooling and heating gear of an automobile air conditioner according to the utility model;

[0015] Figure 2This is a structural cross-sectional view of a limit structure for cooling and heating gears of an automobile air conditioner according to the utility model;

[0016] Figure 3 This is a partial structural diagram of a limit structure of a heating and cooling gear of an automobile air conditioner according to the utility model;

[0017] In the figure: 1-actuator, 2-transmission shaft, 3-cooling and heating gear, 4-cooling and heating air door lever, 5-air door shaft, 6-connecting sleeve, 7-cooling and heating air door, 8-support base, 9-connecting seat, 10-movable seat, 11-positioning slide, 12-positioning slide, 13-travel switch, 14-movable slot. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution: a limit structure of a heating and cooling gear 3 of an automobile air conditioner, comprising an actuator 1, a supporting base 8, a connecting base 9, a movable base 10, a positioning slide 11, a positioning slide slot 12, a travel switch 13 and a movable slot 14, a transmission shaft 2 is fixed to the lower end surface of the output end of the actuator 1, a heating and cooling gear 3 is fixed to the lower end surface of the transmission shaft 2, the heating and cooling gear 3 is meshingly connected with a heating and cooling air door lever 4, and a damper shaft 5 is fixed to the lower end surface of the heating and cooling air door lever 4;

[0020] A connecting sleeve 6 is fixed to the outer side of the annular surface of the damper shaft 5, and a cold and warm air damper 7 is fixed to the left end face of the connecting sleeve 6. A supporting base 8 is arranged on the lower end face of the damper shaft 5, a connecting seat 9 is fixed to the front end face of the damper shaft 5, and a movable seat 10 is fixed to the front end face of the connecting seat 9. A movable groove 14 is provided inside the supporting base 8 and is movably connected to the movable seat 10. A positioning slide groove 12 is provided inside the supporting base 8, and a positioning slide seat 11 is connected to the rear end face of the movable seat 10 and is slidably connected to the positioning slide groove 12. A travel switch 13 is fixed inside the movable groove 14. This design enables the actuator 1 to stop running by touching the travel switch 13 through the movable seat 10, thereby protecting the damper shaft 5 from being broken by overload and impact of the actuator 1, thereby ensuring the normal use of the cold and warm air damper 7 functions.

[0021] As the first embodiment of the utility model: the specifications of the heating and cooling gear 3 match the specifications of the heating and cooling air door lever 4, and the two can be fitted and meshed together. The design drives the heating and cooling gear 3 to rotate through the actuator 1, so that the heating and cooling gear 3 can be fitted and meshed together with the heating and cooling air door lever 4, so that the heating and cooling air door lever 4 can drive the air door shaft 5 to rotate, so that the heating and cooling air door 7 can rotate, thereby realizing cooling or heating of the automobile air conditioner, and threaded holes are provided inside the connecting sleeve 6 and the air door shaft 5. The inner diameter of the connecting sleeve 6 is equal to the outer diameter of the air door shaft 5, and the two can be fitted and connected. The design completes the fixation of the connecting sleeve 6 by fitting and rotating with the threaded hole through an external fixing bolt, so that it is fitted and connected with the air door shaft 5.

[0022] The specifications of the movable seat 10 match those of the movable groove 14, and the two can fit and slide together. The specifications of the positioning slide 11 match those of the positioning groove 12, and the two can fit and slide together. The design limits the movement trajectory of the movable seat 10 by the fitting and sliding connection between the positioning slide 11 and the positioning groove 12. A rotating hole is provided inside the support base 8, and the inner diameter of the rotating hole is equal to the outer diameter of the damper shaft 5, and the two can fit and rotate together. The travel switch 13, the positioning slide 11, the positioning groove 12, the movable seat 10, the movable groove 14, the connecting seat 9 and the support base 8 constitute a protective assembly. When the actuator 1 is overloaded, the design enables the movable seat 10 to fit and slide together with the movable groove 14, so that the movable seat 10 contacts the travel switch 13, so that the travel switch 13 can send a signal to the actuator 1 to stop the movement of the actuator 1 and prevent the actuator 1 from continuing to drive the damper shaft 5 to rotate, causing the damper shaft 5 to break.

[0023] As the second embodiment of the utility model: the staff first electrically connects the travel switch 13 and the actuator 1 to the external power supply and the external controller through wires, and drives the heating and cooling gear 3 to rotate through the actuator 1, so that the heating and cooling gear 3 can be closely meshed and connected with the heating and cooling air door lever 4, so that the heating and cooling air door lever 4 can drive the damper shaft 5 to rotate, so that the heating and cooling air door 7 can rotate, thereby realizing cooling or heating of the automobile air conditioner. When the actuator 1 is overloaded, the damper shaft 5 continues to rotate, so that the movable seat 10 can be closely slidably connected with the movable groove 14, so that the movable seat 10 contacts the travel switch 13, so that the travel switch 13 can send a signal to the actuator 1 to stop the movement of the actuator 1, and prevent the actuator 1 from continuing to drive the damper shaft 5 to rotate, causing the damper shaft 5 to break.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A limit structure for the cooling and heating gear of an automobile air conditioner, comprising an actuator, a supporting base, a connecting seat, a movable seat, a positioning slide seat, a positioning slide slot, a travel switch and a movable slot, characterized in that: A transmission shaft is fixed to the lower end surface of the output end of the actuator, a heating and cooling gear is fixed to the lower end surface of the transmission shaft, the heating and cooling gear is meshedly connected with a heating and cooling door lever, and a damper shaft is fixed to the lower end surface of the heating and cooling door lever; A connecting sleeve is fixed to the outer side of the damper shaft ring surface, a cold and warm air damper is fixed to the left end face of the connecting sleeve, a supporting base is arranged on the lower end face of the damper shaft, a connecting seat is fixed to the front end face of the damper shaft, a movable seat is fixed to the front end face of the connecting seat, a movable groove is provided inside the supporting base and is movably connected to the movable seat, a positioning slide groove is provided inside the supporting base, a positioning slide is connected to the rear end face of the movable seat and is slidably connected to the positioning slide groove, and a travel switch is fixed inside the movable groove.

2. The automobile air conditioning cooling and heating gear limiting structure according to claim 1 is characterized in that: The specifications of the cooling and heating gear match those of the cooling and heating door lever, and the two can be fitted and meshed and connected.

3. The automobile air conditioning cooling and heating gear limiting structure according to claim 1 is characterized in that: The connecting sleeve and the damper shaft are both provided with threaded holes, the inner diameter of the connecting sleeve is equal to the outer diameter of the damper shaft, and the two can be fitted and connected.

4. The automobile air conditioning cooling and heating gear limiting structure according to claim 1 is characterized in that: The specification of the movable seat matches that of the movable groove, and the two can fit and slide in connection.

5. The automobile air conditioning cooling and heating gear limiting structure according to claim 1 is characterized in that: The specification of the positioning slide seat matches the specification of the positioning slide groove, and the two can fit and slide in connection.

6. The automobile air conditioning cooling and heating gear limiting structure according to claim 1 is characterized in that: A rotating hole is opened inside the support base, the inner diameter of the rotating hole is equal to the outer diameter of the damper shaft, and the two can be rotatably connected in a fit, and the travel switch, positioning slide, positioning slide groove, movable seat, movable groove, connecting seat and support base constitute a protective assembly.

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