Truck air conditioner HVAC heater and refrigerator integrated assembly

Abstract

The utility model discloses an HVAC heater and refrigerator integrated assembly of a truck air conditioner, which relates to the field of automobile air conditioning system parts and comprises an upper shell, one end of the upper shell is in threaded connection with a plurality of cross recessed pan head self-tapping screws, and the outer surfaces of the cross recessed pan head self-tapping screws are in threaded connection with a lower shell. A foot blowing air door assembly and a cold and hot mixed air door assembly are arranged at a foot blowing air outlet in the left portion of the bottom end of the inner side of the lower shell, a refrigerator core assembly is arranged in a refrigerator core groove in the right portion of the bottom end of the inner side of the lower shell, and a face blowing air door assembly is arranged at a face blowing air outlet in the left end of the inner side of the upper shell. The air conditioner HVAC heater, the refrigerator, the air circulation channel and the channel switching control mechanism are integrated, the structure is simpler and more reliable, the installation and assembly space of the whole air conditioner HVAC is further reduced, and production, packaging, transportation, installation, assembly, maintenance and replacement of products are more convenient.

Description

Technical Field

[0001] The utility model relates to the field of parts of an automotive air conditioning system, and particularly to an integrated assembly of a heater and a cooler for a truck air conditioning HVAC. Background Technique

[0002] With the development of China's automotive industry, the technologies and products of automotive vehicles and parts are being updated faster and faster. Similarly, as a major system and component in an automotive vehicle, the automotive air conditioning system has continuously seen new technologies, new processes, new materials, and new products with the development and improvement of automotive and parts products. An automotive air conditioning system generally includes a heater, a cooler, a blower, a circulating air purifier, a condenser, a compressor, a control mechanism, connecting pipelines, and an operating control wire harness. Among them, the heater, the cooler, the blower, the circulating air purifier, the circulating air passage, and the switching opening and closing mechanism constitute the HVAC of the air conditioner, which is the main component of the air conditioning system in the vehicle body part. By adjusting and purifying the air temperature and humidity inside the vehicle body during driving, as well as the quality of the circulating air, the HVAC provides comfortable driving conditions for the driver and passengers and defrosts and demists the automotive windshield.

[0003] Currently, most truck air conditioning systems use a split design for the heater and the cooler, which occupies a relatively large installation and assembly space. Moreover, the connection between each split requires an air circulation passage for connection, and the air circulation passage is often designed in a curved shape, causing unnecessary ventilation resistance. In addition, it is difficult to seal the connection, so there is leakage of circulating air, affecting the performance of the HVAC of the air conditioner. Moreover, the large number of parts developed in the split design increases the manufacturing cost. Therefore, an integrated assembly of a heater and a cooler for a truck air conditioning HVAC is proposed to solve the problems mentioned above. Summary of the Utility Model

[0004] To solve the above technical problems, an integrated assembly of a heater and a cooler for a truck air conditioning HVAC is provided. This technical solution solves the problems mentioned in the above background technique, that is, most current truck air conditioning systems use a split design for the heater and the cooler, which occupies a relatively large installation and assembly space. Moreover, the connection between each split requires an air circulation passage for connection, and the air circulation passage is often designed in a curved shape, causing unnecessary ventilation resistance. In addition, it is difficult to seal the connection, so there is leakage of circulating air, affecting the performance of the HVAC of the air conditioner. Moreover, the large number of parts developed in the split design increases the manufacturing cost.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is as follows:

[0006] A truck air conditioner HVAC heater and cooler integrated assembly, including an upper housing. One end of the upper housing is threadedly connected with a number of cross-recessed pan head self-tapping screws. The outer surfaces of the number of cross-recessed pan head self-tapping screws are threadedly connected with a lower housing. At the foot air outlet at the left part of the inner bottom end of the lower housing, there is a foot air door assembly and a cold and hot mixing air door assembly. Inside the cooler core body groove at the right part of the inner bottom end of the lower housing, there is a cooler core body assembly. At the face air outlet at the left end of the inner side of the upper housing, there is a face air door assembly. At the defrost air outlet at the left end of the inner side of the upper housing, there is a defrost air door assembly. At the right part of the bottom end of the lower housing, three cross-recessed pan head self-tapping screws are threadedly connected. The outer surfaces of the three cross-recessed pan head self-tapping screws are threadedly connected with a lower housing bracket. There is a rectangular hole at the lower end of the lower housing, and a heater core body assembly is inserted into the rectangular hole. There is a cooler temperature sensor assembly on the outer side of the lower housing, and the measuring end of the cooler temperature sensor assembly penetrates the outer side of the lower housing and extends into the interior of the lower housing.

[0007] Preferably, two cross-recessed pan head self-tapping screws symmetrically distributed with respect to pressing the heater core body assembly are threadedly connected to the lower end of the lower housing. The outer surfaces of the two cross-recessed pan head self-tapping screws are threadedly connected with a heater core body pressing plate, and the inner side of the heater core body pressing plate abuts against the middle part of the upper water chamber of the heater core body assembly.

[0008] Preferably, two cross-recessed pan head self-tapping screws are threadedly connected to the left part of the lower end of the lower housing. The outer surfaces of the two cross-recessed pan head self-tapping screws are threadedly connected with a heater water pipe support assembly. There are two fixing holes on the heater water pipe support assembly, and the heater water pipe support assembly is sleeved on the outer surfaces of the inlet pipe and the outlet pipe of the heater core body assembly through the fixing holes.

[0009] Preferably, the output shafts of the defrost air door assembly, the face air door assembly, and the foot air door assembly are respectively fixedly connected with a defrost swing rod, a face swing rod, and a foot swing rod.

[0010] Preferably, the output shaft of the foot swing rod is rotatably connected with a foot connecting rod, and the other end of the foot connecting rod is rotatably connected to the curved groove at the left end of the lower housing through a pin shaft.

[0011] Preferably, two cross-recessed pan head self-tapping screws are threadedly connected to the left end of the upper housing. Plastic washers are sleeved on the outer surfaces of the two cross-recessed pan head self-tapping screws. A defrost connecting rod and a mode connecting rod are respectively sleeved on the outer surfaces of the two cross-recessed pan head self-tapping screws inside the plastic washers. The other end of the defrost connecting rod is rotatably connected to the defrost swing rod through a pin shaft. The defrost connecting rod, the face swing rod, and the foot connecting rod are all rotatably connected to the mode connecting rod through a pin shaft.

[0012] Preferably, the mode link rod meshes with a mode driving gear, a mode actuator is fixedly connected to the outside of the mode driving gear, three cross recessed pan head self-tapping screws are threadedly connected to the outside of the mode actuator, one end of one of the cross recessed pan head self-tapping screws is threadedly connected to the left end of the upper housing, and one end of the other two cross recessed pan head self-tapping screws is threadedly connected to the left end of the lower housing.

[0013] Preferably, the output shaft of the cold and hot mixing air door assembly penetrates through the upper end of the upper housing and is fixedly connected to a mixing actuator, three cross recessed pan head self-tapping screws are threadedly connected to the outside of the mixing actuator, and one end of the three cross recessed pan head self-tapping screws is threadedly connected to the upper end of the upper housing.

[0014] Preferably, a plurality of cross recessed pan head self-tapping screws are threadedly connected to the outside of the upper end of the upper housing and located outside the defrost air door assembly and the face blowing air door assembly, and a sealing plate frame is threadedly connected to the outer surface of the plurality of cross recessed pan head self-tapping screws.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] The present utility model provides a truck air conditioner HVAC heater and cooler integrated assembly, which integrates the air conditioner HVAC heater, cooler, air circulation channel and channel conversion control mechanism, has a simpler and more reliable structure, further reduces the installation and assembly space of the overall air conditioner HVAC, is more convenient for the production, packaging, transportation, installation and assembly, maintenance and replacement of the product, reduces the product manufacturing cost at the same time, greatly improves its adaptability, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view schematic diagram of the present utility model;

[0018] Figure 2 is the rear view schematic diagram of the present utility model;

[0019] Figure 3 is the bottom view schematic diagram of the present utility model;

[0020] Figure 4 is the left view schematic diagram of the present utility model;

[0021] Figure 5 is the top view schematic diagram of the present utility model;

[0022] Figure 6 is the right view schematic diagram of the present utility model.

[0023] The reference numerals in the drawings are:

[0024] 1. Upper housing; 2. Lower housing; 3. Lower housing bracket; 4. Heater water pipe bracket assembly; 5. Heater core assembly; 6. Refrigerator temperature sensor assembly; 7. Heater core pressing plate; 8. Plastic washer; 9. Defrosting link; 10. Defrosting swing rod; 11. Face-blowing swing rod; 12. Mode driving gear; 13. Mode link; 14. Foot-blowing link; 15. Foot-blowing swing rod; 16. Foot-blowing air damper assembly; 17. Mode actuator; 18. Mixing actuator; 19. Cold and hot mixing air damper assembly; 20. Face-blowing air damper assembly; 21. Defrosting air damper assembly; 22. Sealing plate frame; 23. Refrigerator core assembly; 24. Cross recessed pan head self-tapping screw. Detailed implementation mode

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variants.

[0026] Refer to Figures 1-6 As shown, a truck air conditioner HVAC heater and refrigerator integrated assembly includes an upper housing 1. One end of the upper housing 1 is threadedly connected with a number of cross recessed pan head self-tapping screws 24. The outer surfaces of the several cross recessed pan head self-tapping screws 24 are threadedly connected with a lower housing 2. A foot-blowing air damper assembly 16 and a cold and hot mixing air damper assembly 19 are arranged at the foot-blowing air outlet at the left part of the inner bottom end of the lower housing 2. A refrigerator core assembly 23 is arranged in the refrigerator core groove at the right part of the inner bottom end of the lower housing 2. A face-blowing air damper assembly 20 is arranged at the face-blowing air outlet at the left end inside the upper housing 1. A defrosting air damper assembly 21 is arranged at the defrosting air outlet at the left end inside the upper housing 1. The right part of the bottom end of the lower housing 2 is threadedly connected with three cross recessed pan head self-tapping screws 24. The outer surfaces of the three cross recessed pan head self-tapping screws 24 are threadedly connected with a lower housing bracket 3. A rectangular hole is arranged at the lower end of the lower housing 2, and a heater core assembly 5 is inserted into the rectangular hole. A refrigerator temperature sensor assembly 6 is arranged on the outer side of the lower housing 2, and the measuring end of the refrigerator temperature sensor assembly 6 penetrates through the outer side of the lower housing 2 and extends into the interior of the lower housing 2.

[0027] Further, two cross recessed pan head self-tapping screws 24 symmetrically distributed about pressing the heater core assembly 5 are threadedly connected to the lower end of the lower housing 2. The outer surfaces of the two cross recessed pan head self-tapping screws 24 are threadedly connected with a heater core pressing plate 7, and the inner side of the heater core pressing plate 7 abuts against the middle part of the upper water chamber of the heater core assembly 5.

[0028] Further, two Phillips pan head self-tapping screws 24 are threadedly connected to the left lower part of the lower housing 2. The outer surfaces of the two Phillips pan head self-tapping screws 24 are threadedly connected to a heater water pipe support assembly 4. Two fixing holes are provided on the heater water pipe support assembly 4. The heater water pipe support assembly 4 is sleeved on the outer surfaces of the water inlet pipe and the water outlet pipe of the heater core assembly 5 through the fixing holes.

[0029] Further, the heater water pipe support assembly 4 can support the water inlet pipe and the water outlet pipe of the heater core assembly 5.

[0030] Further, the output shafts of the defrost air door assembly 21, the face blowing air door assembly 20, and the foot blowing air door assembly 16 are respectively fixedly connected to a defrost swing rod 10, a face blowing swing rod 11, and a foot blowing swing rod 15.

[0031] Further, the output shaft of the foot blowing swing rod 15 is rotatably connected to a foot blowing connecting rod 14. The other end of the foot blowing connecting rod 14 is rotatably connected to the inside of a bent groove at the left end of the lower housing 2 through a pin shaft.

[0032] Further, two Phillips pan head self-tapping screws 24 are threadedly connected to the left end of the upper housing 1. Plastic washers 8 are sleeved on the outer surfaces of the two Phillips pan head self-tapping screws 24. A defrost connecting rod 9 and a mode connecting rod 13 are respectively sleeved on the outer surfaces of the two Phillips pan head self-tapping screws 24 inside the plastic washers 8. The other end of the defrost connecting rod 9 is rotatably connected to the defrost swing rod 10 through a pin shaft. The defrost connecting rod 9, the face blowing swing rod 11, and the foot blowing connecting rod 14 are all rotatably connected to the mode connecting rod 13 through pin shafts.

[0033] Further, the mode connecting rod 13 is engaged with a mode driving gear 12. A mode actuator 17 is fixedly connected to the outside of the mode driving gear 12. Three Phillips pan head self-tapping screws 24 are threadedly connected to the outside of the mode actuator 17. One end of one Phillips pan head self-tapping screw 24 is threadedly connected to the left end of the upper housing 1, and one end of the other two Phillips pan head self-tapping screws 24 is threadedly connected to the left end of the lower housing 2.

[0034] Further, by turning on or off the switch on the mode actuator 17, the mode driving gear 12 can drive the mode connecting rod 13 to pull the defrost connecting rod 9, the face blowing swing rod 11, and the foot blowing connecting rod 14, so as to open or close the face blowing, foot blowing, and defrost air doors through the defrost connecting rod 9, the face blowing swing rod 11, and the foot blowing connecting rod 14, and further adjust the air circulation at each air outlet to realize the switching of modes.

[0035] Further, the output shaft of the cold and hot mixing air door assembly 19 penetrates through the upper end of the upper housing 1 and is fixedly connected to a mixing actuator 18. Three Phillips pan head self-tapping screws 24 are threadedly connected to the outside of the mixing actuator 18. One end of the three Phillips pan head self-tapping screws 24 is threadedly connected to the upper end of the upper housing 1.

[0036] Further, several cross recessed pan head self-tapping screws 24 are threadedly connected to the outer side of the upper end of the upper housing 1, which is located outside the defrost air door assembly 21 and the face-blowing air door assembly 20. A sealing plate frame 22 is threadedly connected to the outer surfaces of the several cross recessed pan head self-tapping screws 24.

[0037] Further, the sealing structures of the air flow passage conversion control air door and the heating and cooling conversion control air door adopt plastic-rubber elastic materials, which greatly improve and enhance the sealing performance when the air flow passage is opened and closed, reduce the heat loss caused by the poor sealing of the heat exchange of the air passing through the heating core and the cooling core and the air flow passage conversion control mechanism, and thus ensure the effective exertion of the heating and cooling performance of the air conditioner HVAC heater and cooler.

[0038] Working principle: When in use, the present utility model is installed at the middle position under the instrument panel of the truck body and connected to the air conditioner HVAC fan assembly. At the same time, each air passage inside the instrument panel and the vehicle body air conditioner control wire harness are connected. During the operation of the vehicle starting, the fan of the operating mechanism is turned on. The circulating air delivered by the air conditioner fan to the integrated assembly exchanges heat through the cooler core and the heater core, adjusts the air temperature and humidity, and is delivered into the vehicle body through each air outlet of the integrated assembly and each air flow passage under the instrument panel to achieve the adjustment of the vehicle body temperature and humidity. When defrosting and defogging the vehicle body windshield and adjusting the vehicle body to cool down, the cold and hot mixing air door assembly 19 of the integrated assembly opens the cooling passage and closes the heating passage through the mixing actuator 18, and the air exchanges heat through the cooler core to reduce the air temperature. Similarly, when adjusting the vehicle body to heat up, the cold and hot mixing air door opens the heating passage and closes the cooling passage, and the air exchanges heat through the heater core to complete the heating of the vehicle body. The face-blowing, defrosting, and defogging operations of the integrated assembly are completed by the mode actuator 17 of the integrated assembly opening and closing the face-blowing, foot-blowing, and defrost air doors to adjust the air flow direction of each air outlet.

[0039] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A truck air conditioning HVAC heater and refrigerator integrated assembly, characterized in that: The invention comprises an upper shell (1), one end of which is threadedly connected to a plurality of cross-slot pan head self-tapping screws (24), the outer surfaces of which are threadedly connected to a lower shell (2), a full-blown air outlet at the left bottom of the inner side of the lower shell (2) being provided with a full-blown air door assembly (16) and a cold-hot mixing air door assembly (19), a refrigerator core assembly (23) being provided in a refrigerator core groove at the right bottom of the inner side of the lower shell (2), a face-blown air door assembly (20) being provided at the face-blown air outlet at the left bottom of the inner side of the upper shell (1), and the upper shell (1 ) is provided at the defrost air outlet on the inner left end, three cross-slot pan head tapping screws (24) are threadedly connected to the right bottom end of the lower shell (2), and the outer surfaces of the three cross-slot pan head tapping screws (24) are threadedly connected to the lower shell bracket (3), and a rectangular hole is provided at the lower end of the lower shell (2), and a heater core assembly (5) is inserted into the rectangular hole, and a refrigerator temperature sensor assembly (6) is provided on the outer side of the lower shell (2), and the measuring end of the refrigerator temperature sensor assembly (6) passes through the outer side of the lower shell (2) and extends to the interior of the lower shell (2).

2. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The lower end of the lower shell (2) is threadedly connected to two cross-slot pan head tapping screws (24) symmetrically distributed about pressing the heater core assembly (5), and the outer surfaces of the two cross-slot pan head tapping screws (24) are threadedly connected to a heater core pressure plate (7), and the inner side of the heater core pressure plate (7) is in contact with the middle of the upper water chamber of the heater core assembly (5).

3. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The left portion of the lower end of the lower shell (2) is threadedly connected to two cross-slot pan head self-tapping screws (24), and the outer surfaces of the two cross-slot pan head self-tapping screws (24) are threadedly connected to a heater water pipe bracket assembly (4). The heater water pipe bracket assembly (4) is provided with two fixing holes, and the heater water pipe bracket assembly (4) is sleeved on the outer surfaces of the water inlet pipe and the water outlet pipe of the heater core assembly (5) through the fixing holes.

4. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The output shafts of the defrost damper assembly (21), the face blowing damper assembly (20) and the full blowing damper assembly (16) are respectively fixedly connected to the defrost swing rod (10), the face blowing swing rod (11) and the full blowing swing rod (15).

5. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 4, characterized in that: The output shaft of the full blowing swing rod (15) is rotatably connected to the full blowing connecting rod (14), and the other end of the full blowing connecting rod (14) is rotatably connected to the curved groove at the left end of the lower shell (2) through a pin shaft.

6. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The left end of the upper shell (1) is threadedly connected to two cross-slot pan head tapping screws (24). The outer surfaces of the two cross-slot pan head tapping screws (24) are sleeved with plastic washers (8). The outer surfaces of the two cross-slot pan head tapping screws (24) are located on the inner side of the plastic washers (8), and are respectively sleeved with a defrost link (9) and a mode link (13). The other end of the defrost link (9) is rotatably connected to the defrost swing rod (10) via a pin shaft. The defrost link (9), the face blowing swing rod (11) and the foot blowing link (14) are all rotatably connected to the mode link (13) via a pin shaft.

7. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 6, characterized in that: The mode connecting rod (13) is meshed with a mode driving gear (12), the outer side of the mode driving gear (12) is fixedly connected to a mode actuator (17), the outer side of the mode actuator (17) is threadedly connected to three cross-slot pan head self-tapping screws (24), one end of one of the cross-slot pan head self-tapping screws (24) is threadedly connected to the left end of the upper shell (1), and one end of the other two cross-slot pan head self-tapping screws (24) are threadedly connected to the left end of the lower shell (2).

8. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The output shaft of the hot and cold mixing damper assembly (19) passes through the upper end of the upper shell (1) and is fixedly connected to the mixing actuator (18); the outer side of the mixing actuator (18) is threadedly connected to three cross-slot pan head self-tapping screws (24); one end of the three cross-slot pan head self-tapping screws (24) is threadedly connected to the upper end of the upper shell (1).

9. The truck air conditioning HVAC heater and refrigerator integrated assembly according to claim 1, characterized in that: The upper end of the upper shell (1) is located on the outer side of the defrost damper assembly (21) and the face blowing damper assembly (20), and is threadedly connected to a plurality of cross-slot pan head self-tapping screws (24); the outer surfaces of the plurality of cross-slot pan head self-tapping screws (24) are threadedly connected to a sealing plate frame (22).

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