Electric automobile heat pump air conditioning system with condenser cleaning function
By using filters and cleaning mechanisms in the electric vehicle heat pump air conditioning system, the problem of degradation of heat dissipation performance caused by impurities attached to the outside condenser is solved, and the effect of regular cleaning and energy consumption is achieved.
Patent Information
- Application Number
- CN202421287071.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing electric vehicle heat pump air conditioning system, the outer condenser is prone to dust, catkins, leaves and small insects due to the inability to seal, resulting in a decrease in heat dissipation performance and an increase in heat transfer resistance, thereby increasing energy consumption.
An electric vehicle heat pump air conditioning system including a condenser shell, linkage tube, fin, filter mesh, motor, threaded rod, cleaning plate, trigger plate and carding mechanism is designed. The impurities in the air are filtered through the filter mesh and the cleaning plate is used to filter impurities in the air. The system and the carding mechanism regularly cleans the dirt on the condenser to improve the heat dissipation effect.
Effectively filter the willow catkin impurities in the air, regularly clean the dirt on the condenser, improve heat dissipation performance, reduce energy consumption, and enhance the cleanliness and convenience of the condenser.
Smart Images
Figure CN222291440U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric vehicle heat pump air conditioners, and in particular relates to an electric vehicle heat pump air conditioner system with condenser cleaning. Background Art
[0002] The existing electric vehicle air conditioning system uses the traditional cooling method in the cooling method, but has undergone major changes in the heating method. Currently, there are three commonly used electric vehicle winter heating methods: fuel heating device, positive temperature coefficient (PTC) thermistor and heat pump air conditioning system. Among them, the heat pump air conditioning system is considered to be the future of electric vehicle heating technology due to its pollution-free and extremely high energy efficiency. It is gradually gaining attention and popularity. The principle of the heat pump air conditioning system is to transfer heat from a low-temperature heat source to a high-temperature heat source;
[0003] The heat pump air-conditioning system requires the use of an outdoor condenser. Since the outdoor condenser is generally installed at the front of the vehicle and needs to be in contact with the outside air and cannot be sealed, dust, catkins, leaves and small insects will adhere to the condenser, causing poor heat dissipation and reducing the heat dissipation performance of the condenser. Condenser scaling will increase the heat transfer resistance of the heat transfer surface, directly affecting the heat transfer effect, which will increase the condensation temperature, thereby reducing the heat dissipation effect and may lead to increased energy consumption.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an electric vehicle heat pump air conditioning system with condenser cleaning.
[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:
[0007] A heat pump air conditioning system for electric vehicles with condenser cleaning includes a condenser shell, an inner wall of the condenser shell is provided with a linkage pipe, a plurality of fins fixedly connected to the inner wall of the condenser shell are fixedly connected to the linkage pipe, and a filter is fixedly connected to one side of the plurality of fins;
[0008] A motor is fixedly connected to one side of the inner wall of the condenser shell, a threaded rod is fixedly connected to the output end of the motor, a cleaning plate is threadedly matched on the threaded rod, a brush in contact with the filter screen is fixedly connected to one side of the cleaning plate, and a trigger plate is fixedly connected to one side of the cleaning plate;
[0009] A combing mechanism matched with the trigger plate is arranged on the lower side of the inner wall of the condenser shell.
[0010] Optionally, in order to clean the bristles, the combing mechanism includes a combing shell installed on the lower side of the inner wall of the condenser shell, a protruding rod rotatably engaged with the inner wall of the combing shell, and a friction ring fixedly connected to the protruding rod and matched with the trigger plate.
[0011] Optionally, in order to guide and limit the cleaning plate, a guide groove is provided on one side of the inner wall of the condenser shell, and the inner wall of the guide groove is slidably matched with a guide block fixedly connected to the cleaning plate.
[0012] Optionally, in order to facilitate the installation of the condenser shell, two connecting plates are fixedly connected to both sides of the condenser shell, and pin holes are opened on one side of the plurality of connecting plates.
[0013] Optionally, in order to improve air flow and increase heat dissipation effect, a fan assembly is fixedly connected to one side of the condenser housing, and the fan assembly is fixed to the condenser housing by bolts.
[0014] Optionally, in order to clean the protruding rod, a plurality of removal claws are fixedly connected to one side of the inner wall of the combing shell, and one end of the plurality of removal claws is arc-shaped.
[0015] Optionally, in order to increase the friction force on the friction ring when it is contacted, a friction pad is fixedly connected to the friction ring, and the friction pad is provided with anti-skid patterns.
[0016] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:
[0017] 1. By setting up a filter, it is possible to filter out catkins and impurities in the flowing air, and then move the bristles by moving the cleaning plate to clean the impurities on the filter. Regular cleaning can be performed during the time when catkins are flying, avoiding poor heat dissipation and increased energy consumption due to stagnant air flow, thereby improving the convenience of cleaning the external condenser of the vehicle.
[0018] 2. By setting a trigger plate, when the cleaning plate moves, the friction ring in the combing mechanism can be squeezed by the trigger plate and the raised rod can be driven to rotate to clean the impurities such as catkins that may be adsorbed on the sliding bristles, thereby reducing the possibility of secondary contamination during resetting.
[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0021] Figure 1 This is a schematic diagram of a three-dimensional cross-sectional structure of a condenser housing in a top view according to an embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of a condenser housing according to an embodiment of the utility model;
[0023] Figure 3 For an embodiment of the utility model Figure 2 The enlarged structural diagram at A in the middle;
[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of a cleaning plate according to an embodiment of the utility model;
[0025] Figure 5 This is a schematic diagram of a heating cycle structure of a heat pump air conditioning system according to an embodiment of the utility model;
[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0027] 1. Condenser housing; 2. Linkage pipe; 3. Fins; 4. Filter; 5. Motor; 6. Threaded rod; 7. Cleaning plate; 8. Bristles; 9. Trigger plate; 10. Combing mechanism; 101. Combing shell; 102. Raised rod; 103. Friction ring; 11. Guide groove; 12. Guide block; 13. Connecting plate; 14. Pin hole; 15. Fan assembly; 16. Removal claw; 17. Friction pad; 18. Anti-slip texture; 19. Compressor; 20. Gas-liquid separator; 21. First electronic expansion valve; 22. Second electronic expansion valve; 23. First solenoid valve; 24. Second solenoid valve; 25. In-vehicle condenser; 26. Evaporator.
[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0029] The utility model will now be further described in detail with reference to the accompanying drawings.
[0030] See also Figure 1-5 As shown, in this embodiment, a heat pump air conditioning system for electric vehicles with condenser cleaning is provided, comprising a condenser housing 1, an inner wall of the condenser housing 1 is provided with a linkage pipe 2, a plurality of fins 3 fixedly connected to the inner wall of the condenser housing 1 are fixedly connected to the linkage pipe 2, and a filter screen 4 is fixedly connected to one side of the plurality of fins 3;
[0031] A motor 5 is fixedly connected to one side of the inner wall of the condenser housing 1, a threaded rod 6 is fixedly connected to the output end of the motor 5, a cleaning plate 7 is threadedly matched on the threaded rod 6, a brush 8 in contact with the filter screen 4 is fixedly connected to one side of the cleaning plate 7, and a trigger plate 9 is fixedly connected to one side of the cleaning plate 7;
[0032] A combing mechanism 10 matched with the trigger plate 9 is installed on the lower side of the inner wall of the condenser housing 1 .
[0033] One aspect of the application of this embodiment is: when in use, the condenser housing 1 is installed on the head of the electric vehicle, and then the linkage pipe 2 is connected to the corresponding device, and then R134A refrigerant is injected. When the refrigerator passes through the condenser housing 1, the linkage pipe 2 on the inner wall of the condenser housing 1 is heat-conducted by the fins 3, and the heat is dissipated by contacting with the outside air, and the catkin impurities in the air can be filtered through the filter 4;
[0034] After being used for a period of time, the filter 4 will absorb impurities, and then the threaded rod 6 can be driven to rotate by controlling the motor 5, thereby pushing the cleaning plate 7 to slide. Since the bristles 8 are in contact with the filter 4, and the bristles 8 are made of hard nylon, some impurities or catkins on the filter 4 can be cleaned from top to bottom. After continuing to move downward, the trigger plate 9 will contact the friction ring 103 in the combing mechanism 10, thereby driving the raised rod 102 to rotate. During the rotation of the raised rod 102, the catkins that may exist on the bristles 8 are removed, and then the motor 5 is rotated in the opposite direction to reset the cleaning plate 7 to achieve cleaning. Regular cleaning can be achieved during the time when the catkins are flying, thereby avoiding poor heat dissipation and increased energy consumption due to lack of air flow.
[0035] By setting up the filter 4, it is possible to filter out catkins and impurities in the flowing air, and then the bristles 8 are moved by the mobile cleaning plate 7 to clean the impurities on the filter 4. Regular cleaning can be performed during the time when catkins are flying in the sky, thereby avoiding poor heat dissipation and increased energy consumption due to stagnant air flow, thereby improving the convenience of cleaning the external condenser of the vehicle.
[0036] The heat pump air conditioning system of this embodiment ( Figure 5), the system adopts a three-heat exchanger structure, and uses the changes of multiple solenoid valves and electronic expansion valves to switch the cooling and heating cycle working modes in the system. The compressor 19 is a scroll compressor with a displacement of 27cm3 / r, a speed range of 0-6000r / min, an internal working fluid of R134a, and a heat exchanger type of microchannel heat exchanger. The size of the in-vehicle condenser 25 is 194mm×136mm×32mm, and the flat tube parameter is 14×1.6mm2. The size of the condenser shell 1 is 482mm×316mm×18mm, and the flat tube parameter is 16×1mm2. The size of the evaporator 26 is 202mm×190mm×4 0mm, the flat tube parameters are 18×1.8mm2, the hydraulic diameter of the maximum opening of the electronic expansion valve is 1.65mm, and the maximum flow area is 2.14mm2. In the heating mode, the second solenoid valve 24 and the first electronic expansion valve 21 are closed, and the second electronic expansion valve 22 and the first solenoid valve 23 are opened. At this time, the refrigerant enters the condenser 25 in the vehicle from the outlet of the compressor 19 to release heat, and absorbs heat in the condenser outside the vehicle after throttling by the second electronic expansion valve 22 (at this time, the condenser outside the vehicle acts as an evaporator), and returns to the inlet of the compressor 19 through the solenoid valve. The gas-liquid separator 20 prevents liquid from hitting the compressor 19 and diluting the engine oil in the compressor 19 due to excessive refrigerant.
[0037] The combing mechanism 10 of this embodiment includes a combing shell 101 mounted on the lower side of the inner wall of the condenser housing 1, a protruding rod 102 rotatably engaged with the inner wall of the combing shell 101, and a friction ring 103 fixedly connected to the protruding rod 102 and engaged with the trigger plate 9;
[0038] The trigger plate 9 is driven downward by the cleaning plate 7 to move, and the trigger plate 9 and the friction ring 103 are kept horizontal. When the trigger plate 9 moves downward, it will contact the friction ring 103 and cause it to rotate. The raised rod 102 is a rod material with multiple grab rods, and the cleaning plate 7 can be cleaned by the grab rods.
[0039] A guide groove 11 is provided on one side of the inner wall of the condenser shell 1 of the present embodiment, and the inner wall of the guide groove 11 is slidably matched with a guide block 12 fixedly connected to the cleaning plate 7. When the cleaning plate 7 moves, the guide block 12 slides in the guide groove 11, which can prevent the cleaning plate 7 from rotating at the same time as the threaded rod 6, thereby realizing the up and down movement of the guide cleaning plate 7.
[0040] Two connecting plates 13 are fixedly connected to both sides of the condenser housing 1 of this embodiment. Pin holes 14 are opened on one side of the multiple connecting plates 13. The connecting plates 13 can be fixed to the new energy vehicle by inserting corresponding connecting parts into the pin holes 14.
[0041] A fan assembly 15 is fixedly connected to one side of the condenser housing 1 of the present embodiment. The fan assembly 15 and the condenser housing 1 are fixed by bolts. The fan assembly 15 is a frame with multiple fans provided on it. The fan assembly 15 is connected to the condenser housing 1 by bolts, so that the fan assembly 15 can be easily disassembled for inspection or replacement.
[0042] One side of the inner wall of the combing shell 101 of this embodiment is fixedly connected with a plurality of removing claws 16, one end of each of the plurality of removing claws 16 is arc-shaped, and the removing claws 16 are installed in the middle of the grab hook of the protruding rod 102. After the protruding rod 102 cleans the impurities on the cleaning plate 7, the positive surface of the protruding rod 102 can be cleaned through the removing claws 16.
[0043] In this embodiment, a friction pad 17 is fixedly connected to the friction ring 103. The friction pad 17 is provided with an anti-skid pattern 18. The friction pad 17 is made of hard rubber. The anti-skid pattern 18 increases the friction force of the contact when the trigger plate 9 is pressed down and contacts the anti-skid pattern 18, so that the trigger plate 9 can more easily rotate the friction ring 103.
[0044] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.
Claims
1. An electric vehicle heat pump air conditioning system with condenser cleaning, characterized in that: include: A condenser shell (1), the inner wall of the condenser shell (1) is provided with a linkage pipe (2), a plurality of fins (3) fixedly connected to the inner wall of the condenser shell (1) are fixedly connected to the linkage pipe (2), and a filter screen (4) is fixedly connected to one side of the plurality of fins (3); A motor (5) is fixedly connected to one side of the inner wall of the condenser housing (1); a threaded rod (6) is fixedly connected to the output end of the motor (5); a cleaning plate (7) is threadedly engaged with the threaded rod (6); a brush (8) in contact with the filter screen (4) is fixedly connected to one side of the cleaning plate (7); and a trigger plate (9) is fixedly connected to one side of the cleaning plate (7); A combing mechanism (10) matched with the trigger plate (9) is installed on the lower side of the inner wall of the condenser shell (1).
2. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 1, characterized in that: The combing mechanism (10) comprises a combing shell (101) mounted on the lower side of the inner wall of the condenser housing (1), a protruding rod (102) rotatably engaged with the inner wall of the combing shell (101), and a friction ring (103) fixedly connected to the protruding rod (102) and engaged with the trigger plate (9).
3. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 1, characterized in that: A guide groove (11) is provided on one side of the inner wall of the condenser shell (1), and a guide block (12) fixedly connected to the cleaning plate (7) is slidably matched on the inner wall of the guide groove (11).
4. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 1, characterized in that: Two connecting plates (13) are fixedly connected to both sides of the condenser housing (1), and one side of each of the connecting plates (13) is provided with a pin hole (14).
5. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 1, characterized in that: A fan assembly (15) is fixedly connected to one side of the condenser housing (1), and the fan assembly (15) and the condenser housing (1) are fixed by bolts.
6. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 2, characterized in that: A plurality of rejecting claws (16) are fixedly connected to one side of the inner wall of the combing shell (101), and one end of the plurality of rejecting claws (16) is arc-shaped.
7. The electric vehicle heat pump air conditioning system with condenser cleaning according to claim 2, characterized in that: A friction pad (17) is fixedly connected to the friction ring (103), and an anti-skid pattern (18) is provided on the friction pad (17).