Heavy truck air conditioner heater and refrigerator integrated assembly

Abstract

The utility model discloses a heavy truck air conditioner heater and refrigerator integrated assembly, which relates to the technical field of automobile air conditioner system parts and comprises an upper shell and a lower shell, and a foot blowing air door assembly is arranged on the left side of the lower end of the lower shell. A heating air door assembly and a refrigerating air door assembly are arranged in the front side and the rear side of the right end of the lower shell respectively, a refrigerator core assembly is fixedly installed at the right end of the interior of the lower shell, and due to the fact that a heater, a refrigerator, an air circulation channel and a channel switching control mechanism are integrally designed, many defects of split type design are avoided and overcome. The sealing structure of the air circulation channel switching control air door and the heating and refrigerating switching control air door is made of plastic elastomer materials, the sealing performance when the air circulation channel switching control air door is closed is guaranteed, and therefore the efficiency of an air conditioner is greatly improved, and the refrigerating and heating performance of the air conditioner is effectively exerted.

Description

Technical Field

[0001] The utility model relates to the technical field of components of an automotive air conditioning system, and particularly to an integrated assembly of a heater and a cooler for an air conditioner of a heavy truck. Background Art

[0002] With the development of China's automotive industry, the technology and products of complete vehicles and components in the automotive field are being updated at an increasingly rapid pace. Similarly, as a major system and component in a complete vehicle, the automotive air conditioning system has continuously seen the emergence of new technologies, new processes, new materials, and new products with the development and improvement of automotive and component technologies. The HVAC of the air conditioning system consists of a heater, a cooler (evaporator), a blower, a circulating air purifier, and a circulating air flow passage and switching mechanism. According to the body space volume, its air conditioning technical requirements, the layout of components under the instrument panel of the vehicle body, and the flow path and direction of the circulating air, each component of the HVAC of the air conditioning system is designed in different combinations, either split or integrated.

[0003] The split design occupies a relatively large installation and assembly space, and the connection between each split requires an air flow passage for connection. The air flow passage is often designed to be curved, resulting in unnecessary ventilation resistance. Moreover, the sealing at the connection is relatively difficult, so leakage of the circulating air occurs, affecting the performance of the HVAC of the air conditioning system. In addition, the number of components developed in the split design is relatively large, resulting in high manufacturing costs. Based on this, this solution provides an integrated assembly of a heater and a cooler for an air conditioner of a heavy truck to solve the above-mentioned problems. Summary of the Utility Model

[0004] To solve the above technical problems, an integrated assembly of a heater and a cooler for an air conditioner of a heavy truck is provided. This technical solution solves the problems raised in the above background art, namely, that the split design occupies a relatively large installation and assembly space, the connection between each split requires an air flow passage for connection, the air flow passage is often designed to be curved, resulting in unnecessary ventilation resistance, the sealing at the connection is relatively difficult, so leakage of the circulating air occurs, affecting the performance of the HVAC of the air conditioning system, and the number of components developed in the split design is relatively large, resulting in high manufacturing costs.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows: An integrated assembly of an air conditioner heater and cooler for a heavy truck, comprising an upper housing and a lower housing. A foot blowing air door assembly is provided on the left side of the lower end of the lower housing. A hot air blowing air door assembly and a cold air blowing air door assembly are respectively provided inside the front and rear sides of the right end of the lower housing. A cooler core assembly is fixedly installed inside the right end of the lower housing, and the cooler core assembly is located to the right of the hot air blowing air door assembly and the cold air blowing air door assembly. A face blowing air door assembly and a defrosting air door assembly are respectively provided on the front and rear sides of the left end of the upper housing. The upper housing and the lower housing are fastened and connected by a plurality of cross recessed pan head self-tapping screws. A heater core assembly is installed inside the upper side wall of the upper housing, and the lower end of the heater core assembly extends out of the lower housing through a square hole opened at the lower end of the lower housing. A heater core pressing plate is provided at the lower end of the heater core assembly, and the heater core assembly is fixedly installed at the lower end of the lower housing through the heater core pressing plate and two cross recessed pan head self-tapping screws. A heater water pipe bracket is provided at the rear side of the lower end of the lower housing, and the heater water pipe bracket is fixedly installed at the lower end of the lower housing through a cross recessed pan head self-tapping screw.

[0006] Preferably, the heater water pipe bracket is sleeved on the two inlet and outlet water pipes of the heater core. An expansion valve conversion pressing plate assembly is installed on the right side of the rear end of the lower housing through a cross recessed pan head self-tapping screw, and a hanging part is installed on the rear side of the lower end of the lower housing through a cross recessed pan head self-tapping screw.

[0007] Preferably, a defrosting swing rod is rotatably installed on the output shaft of the defrosting air door assembly, a foot blowing swing rod is rotatably installed on the output shaft of the foot blowing air door assembly, and a face blowing swing rod is rotatably installed on the output shaft of the face blowing air door.

[0008] Preferably, a defrosting connecting rod is rotatably installed at the outer end of the defrosting swing rod, a foot blowing connecting rod is rotatably installed at the front end of the foot blowing swing rod, and plastic washers are installed on both the foot blowing connecting rod and the defrosting connecting rod through cross recessed pan head self-tapping screws.

[0009] Preferably, a mode drive disk is provided at the left end of the upper housing. The pin posts provided on the defrosting connecting rod and the foot blowing connecting rod are respectively inserted into the grooves opened on the mode drive disk, and a mode dust removal cover is installed at the left ends of the defrosting connecting rod and the foot blowing connecting rod through cross recessed pan head self-tapping screws.

[0010] Preferably, a mode actuator is installed on the left side of the lower end of the lower housing, the lower end of the mode actuator is fixedly connected to the upper end of the mode dust removal cover, a foot blowing straight connecting rod is rotatably connected to the lower ends of the foot blowing connecting rod and the foot blowing swing rod, a refrigeration swing rod is rotatably installed at the output end of the cold air blowing air door assembly, and a heating swing rod is rotatably installed at the front end of the refrigeration swing rod.

[0011] Preferably, a heating and cooling swing rod is rotatably installed on the output shaft of the hot air control valve assembly. A mixing actuator is provided at the upper end of the upper housing. The output shaft of the mixing actuator is rotatably connected to the heating and cooling swing rod. The lower end of the mixing actuator is installed at the upper end of the upper housing by three cross recessed pan head self-tapping screws. Two pin posts on the heating and cooling swing rod are respectively inserted into round holes opened on the cooling swing rod and the heating swing rod.

[0012] Preferably, a drain pipe assembly is fixedly communicated with the right side of the lower end of the lower housing. A sealing plate frame is installed at the upper end air outlet of the face blowing air control valve assembly and the defrosting air control valve assembly.

[0013] Compared with the prior art, the present utility model provides an integrated assembly of a heavy truck air conditioner heater and cooler, having the following beneficial effects:

[0014] Due to the integrated design of the heater, cooler, air circulation passage and passage conversion control mechanism, many disadvantages of the split design are avoided and overcome. The structure is simpler and more compact. Moreover, the sealing structures of the air circulation passage conversion control damper and the heating and cooling conversion control damper adopt plastic and rubber elastomer materials, ensuring the sealing performance when the air circulation passage is switched off, thereby greatly improving the air conditioner efficiency and effectively exerting the refrigeration and heating performance of the air conditioner. Due to the integrated design, while the structure is simple and reliable, the overall HVAC installation and assembly space of the air conditioner system is greatly reduced, and it is also convenient for product packaging, transportation, installation and assembly, maintenance and replacement, reducing the product manufacturing cost, and having high applicability and being easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a front view schematic diagram of the main structure principle of the present utility model;

[0017] Figure 3 is a bottom view schematic diagram of the main structure principle of the present utility model;

[0018] Figure 4 is a right view schematic diagram of the main structure principle of the present utility model;

[0019] Figure 5 is a rear view schematic diagram of the main structure principle of the present utility model;

[0020] Figure 6 is a structural schematic diagram at the mode actuator of the present utility model;

[0021] Figure 7 is a left view schematic diagram of the main structure principle of the present utility model;

[0022] Figure 8This is a top view schematic diagram of the main structure principle of the utility model.

[0023] The reference numerals in the figure are:

[0024] 1. Upper housing; 2. Lower housing; 3. Heater core assembly; 4. Foot blowing air door assembly; 5. Refrigerator core assembly; 6. Drain pipe assembly; 7. Expansion valve conversion pressure plate assembly; 8. Hanging part; 9. Heater water pipe bracket; 10. Foot blowing connecting rod; 11. Defrosting swing rod; 12. Defrosting connecting rod; 13. Foot blowing swing rod; 14. Mode drive disc; 15. Face blowing swing rod; 16. Foot blowing straight connecting rod; 17. Mode actuator; 18. Mode dust cover; 19. Refrigeration air door assembly; 20. Refrigeration swing rod; 21. Heating and cooling swing rod; 22. Hot air door assembly; 23. Heating swing rod; 24. Mixing actuator; 25. Face blowing air door assembly; 26. Defrosting air door assembly; 27. Sealing plate frame; 28. Cross recessed pan head self-tapping screw; 29. Heater core pressure plate; 30. Plastic washer. Specific embodiments

[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 described below are only examples, and those skilled in the art can think of other obvious variations.

[0026] Refer to Figures 1-8As shown in the figure, an integrated assembly of a heavy truck air conditioner heater and cooler includes an upper housing 1 and a lower housing 2. A foot blowing air door assembly 4 is provided on the left side of the lower end of the lower housing 2. Inside the front and rear sides of the right end of the lower housing 2, a hot air blowing air door assembly 22 and a cooling air door assembly 19 are respectively provided. A cooler core assembly 5 is fixedly installed inside the right end of the lower housing 2, and the cooler core assembly 5 is located to the right of the hot air blowing air door assembly 22 and the cooling air door assembly 19. On the front and rear sides of the left end of the upper housing 1, a face blowing air door assembly 25 and a defrosting air door assembly 26 are respectively provided. The upper housing 1 and the lower housing 2 are fastened and connected by a plurality of cross-recessed pan head self-tapping screws 28. Inside the upper side wall of the upper housing 1, a heater core assembly 3 is installed. The lower end of the heater core assembly 3 passes through a square hole opened at the lower end of the lower housing 2 and extends out of the lower housing 2. A heater core pressing plate 29 is provided at the lower end of the heater core assembly 3. The heater core assembly 3 is fixedly installed at the lower end of the lower housing 2 through the heater core pressing plate 29 and two cross-recessed pan head self-tapping screws 28. A heater water pipe bracket 9 is provided at the rear side of the lower end of the lower housing 2. The heater water pipe bracket 9 is fixedly installed at the lower end of the lower housing 2 through a cross-recessed pan head self-tapping screw 28. The heater water pipe bracket 9 sleeves the two inlet and outlet water pipes of the heater core. An expansion valve conversion pressing plate assembly 7 is installed at the right side of the rear end of the lower housing 2 through a cross-recessed pan head self-tapping screw 28. A hanging part 8 is installed at the rear side of the lower end of the lower housing 2 through a cross-recessed pan head self-tapping screw 28. A defrosting swing rod 11 is rotatably installed on the output shaft of the defrosting air door assembly 26. A foot blowing swing rod 13 is rotatably installed on the output shaft of the foot blowing air door assembly 4. A face blowing swing rod 15 is rotatably installed on the output shaft of the face blowing air door.

[0027] Refer to Figures 3-8As shown in the figure, a defrosting link 12 is rotatably installed at the outer end of the defrosting swing rod 11, and a foot blowing link 10 is rotatably installed at the front end of the foot blowing swing rod 13. Plastic washers 30 are installed on both the foot blowing link 10 and the defrosting link 12 by cross recessed pan head self-tapping screws 28. A mode drive disk 14 is provided at the left end of the upper housing 1. The pin posts provided on the defrosting link 12 and the foot blowing link 10 are respectively inserted into the grooves formed on the mode drive disk 14. A mode dust cover 18 is installed at the left end of the defrosting link 12 and the foot blowing link 10 by cross recessed pan head self-tapping screws 28. A mode actuator 17 is installed at the lower left side of the lower housing 2, and the lower end of the mode actuator 17 is fixedly connected to the upper end of the mode dust cover 18. A foot blowing straight link 16 is rotatably connected to the lower ends of the foot blowing link 10 and the foot blowing swing rod 13. The output end of the refrigeration air door assembly 19 is rotatably installed with a refrigeration swing rod 20, and a heating swing rod 23 is rotatably installed at the front end of the refrigeration swing rod 20. The output shaft of the heating air door assembly 22 is rotatably installed with a cooling and heating swing rod 21. A mixing actuator 24 is provided at the upper end of the upper housing 1, and the output shaft of the mixing actuator 24 is rotatably connected to the cooling and heating swing rod 21. The lower end of the mixing actuator 24 is installed at the upper end of the upper housing 1 by three cross recessed pan head self-tapping screws 28. The two pin posts on the cooling and heating swing rod 21 are respectively inserted into the round holes formed on the refrigeration swing rod 20 and the heating swing rod 23. A drain pipe assembly 6 is fixedly communicated with the lower right side of the lower housing 2. Sealing plate frames 27 are installed at the upper air outlets of the face blowing air door assembly 25 and the defrosting air door assembly 26.

[0028] The working principle and usage process of the present utility model: When in use, an integrated assembly of a heavy truck air conditioner heater and cooler is installed at the middle position under the instrument panel of the heavy truck body and connected to the air conditioner blower assembly. At the same time, each air circulation passage inside the instrument panel is connected to the vehicle body air conditioner control wire harness. When the vehicle starts and the air conditioner blower is turned on, the circulating air output by the air conditioner blower passes through the cooler core assembly 5 and the heater core assembly 3 for heat exchange, adjusts the air temperature, and is sent out through the air outlets of the integrated assembly and each air flow passage under the instrument panel, realizing the temperature adjustment of the vehicle body air and the defrosting and defogging of the vehicle body windshield. To adjust and lower the air temperature, the refrigeration air door assembly 19 is opened, the heating air door assembly 22 is closed, and the air sent out by the blower is controlled through the mixing actuator 24, and only heat exchange is carried out through the cooler core assembly 5 to lower the air temperature. When adjusting and raising the air temperature, the heating air door assembly 22 is opened, the refrigeration air door assembly 19 is closed, and the air sent out by the blower is controlled through the mixing actuator to carry out heat exchange through the heater core assembly 3 to raise the air temperature. The face blowing, foot blowing, defrosting, and defogging operations of the integrated assembly are achieved by opening or closing the face blowing, foot blowing, and defrosting air doors through the mode actuator 17 of the integrated assembly to adjust the air flow direction of each air outlet.

[0029] The basic principle, main features and advantages of the present utility model have been shown and described above. Those skilled in the art 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, various changes and improvements will occur to the present utility model, 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. An integrated assembly of a heavy-duty truck air conditioner heater and cooler, characterized in that: It includes an upper housing (1) and a lower housing (2). A foot blowing air door assembly (4) is provided on the left side of the lower end of the lower housing (2). A hot air making air door assembly (22) and a refrigerating air door assembly (19) are respectively provided inside the front and rear sides of the right end of the lower housing (2). A refrigerating core assembly (5) is fixedly installed inside the right end of the lower housing (2), and the refrigerating core assembly (5) is located to the right of the hot air making air door assembly (22) and the refrigerating air door assembly (19). Blowing face air door assemblies (25) and defrosting air door assemblies (26) are respectively provided on the front and rear sides of the left end of the upper housing (1). The upper housing (1) and the lower housing (2) are snap-connected by a plurality of cross recessed pan head self-tapping screws (28). A heater core assembly (3) is installed inside the upper side wall of the upper housing (1). The lower end of the heater core assembly (3) passes through a square hole opened at the lower end of the lower housing (2) and extends outside the lower housing (2). A heater core pressing plate (29) is provided at the lower end of the heater core assembly (3). The heater core assembly (3) is fixedly installed at the lower end of the lower housing (2) through the heater core pressing plate (29) and two cross recessed pan head self-tapping screws (28). A heater water pipe bracket (9) is provided at the rear side of the lower end of the lower housing (2), and the heater water pipe bracket (9) is fixedly installed at the lower end of the lower housing (2) through a cross recessed pan head self-tapping screw (28).

2. The integrated assembly of a heavy-duty truck air conditioner heater and cooler according to claim 1, characterized in that: The heater water pipe bracket (9) sleevs the two inlet and outlet water pipes of the heater core. An expansion valve conversion pressing plate assembly (7) is installed on the right side of the rear end of the lower housing (2) through a cross recessed pan head self-tapping screw (28). A hanging part (8) is installed on the rear side of the lower end of the lower housing (2) through a cross recessed pan head self-tapping screw (28).

3. An integrated assembly of a heavy-duty truck air conditioner heater and cooler according to claim 1, characterized in that: A defrosting swing rod (11) is rotatably installed on the output shaft of the defrosting air door assembly (26). A foot blowing swing rod (13) is rotatably installed on the output shaft of the foot blowing air door assembly (4). A blowing face swing rod (15) is rotatably installed on the output shaft of the blowing face air door.

4. The integrated assembly of a heavy truck air conditioner heater and cooler according to claim 3, characterized in that: The outer end of the defrosting swing rod (11) is rotatably installed with a defrosting connecting rod (12). The front end of the foot blowing swing rod (13) is rotatably installed with a foot blowing connecting rod (10). Plastic washers (30) are installed on both the foot blowing connecting rod (10) and the defrosting connecting rod (12) through cross recessed pan head self-tapping screws (28).

5. The integrated assembly of a heavy-duty truck air conditioner heater and cooler according to claim 4, characterized in that: A mode driving disc (14) is provided at the left end of the upper housing (1). The pin posts provided on the defrosting connecting rod (12) and the foot blowing connecting rod (10) are respectively inserted into the grooves opened on the mode driving disc (14). A mode dust removing cover (18) is installed at the left ends of the defrosting connecting rod (12) and the foot blowing connecting rod (10) through cross recessed pan head self-tapping screws (28).

6. The integrated assembly of a heavy-duty truck air conditioner heater and cooler according to claim 5, characterized in that: A mode actuator (17) is installed on the left side of the lower end of the lower housing (2). The lower end of the mode actuator (17) is fixedly connected to the upper end of a mode dust removal cover (18). A blow-foot straight link (16) is rotatably connected to the lower ends of a blow-foot link (10) and a blow-foot swing link (13). A refrigeration swing link (20) is rotatably installed at the output end of a refrigeration air door assembly (19). A heating swing link (23) is rotatably installed at the front end of the refrigeration swing link (20).

7. A combined assembly of a heavy-duty truck air conditioner heater and cooler according to claim 1, characterized in that: A heating and cooling swing link (21) is rotatably installed on the output shaft of a heating air door assembly (22). A mixing actuator (24) is provided at the upper end of the upper housing (1). The output shaft of the mixing actuator (24) is rotatably connected to the heating and cooling swing link (21). The lower end of the mixing actuator (24) is installed on the upper end of the upper housing (1) by three cross recessed pan head self-tapping screws (28). Two pin posts on the heating and cooling swing link (21) are respectively inserted into circular holes formed in the refrigeration swing link (20) and the heating swing link (23).

8. The integrated assembly of a heavy-duty truck air conditioner heater and cooler according to claim 1, characterized in that: A drain pipe assembly (6) is fixedly communicated with the right side of the lower end of the lower housing (2). A sealing plate frame (27) is installed at the air outlet at the upper ends of a face-blowing air door assembly (25) and a defrosting air door assembly (26).

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