An electric vehicle air conditioner heat exchanger

Abstract

The utility model provides a kind of electric automobile air conditioner heat exchanger, it is related to air conditioner heat exchanger technical field, including outer mounting frame, condensing heat exchange pipeline and middle machine body, the left part of outer mounting frame is provided with left sleeve frame, and the right part of outer mounting frame is provided with right sleeve frame, the left sleeve frame and right sleeve frame are all sleeved with positioning frame, and heat exchange cavity is opened in positioning frame, condensing heat exchange pipeline is assembled in heat exchange cavity, and the outer surface of the upper tube body of condensing heat exchange pipeline is attached with multiple groups of fin, the middle part of outer mounting frame is provided with middle sleeve frame, the inside of middle machine body is provided with multiple groups of hot gas cavity from top to bottom in parallel, and the hot gas cavity between two groups of upper and lower adjacent is communicated with middle connecting channel. The utility model uses double-chamber heat exchange design, improves heat exchange efficiency by the pipeline layout of double-chamber design, and positioning frame, condensing heat exchange pipeline and middle machine body are all conveniently and quickly assembled and split, so as to overhaul maintenance replacement, more efficient convenient practical.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning heat exchanger technology, specifically to an air conditioning heat exchanger for electric vehicles. Background Technology

[0002] The heat exchanger in an electric vehicle's air conditioning system is a core component for regulating the vehicle's interior temperature. Its design must balance efficient heat exchange, spatial adaptability, and the energy-saving requirements of new energy vehicles. In recent years, the industry has promoted technological upgrades through structural integration, material optimization, and functional integration. The following analysis focuses on core technologies, typical patented designs, and application characteristics.

[0003] The specification of a heat exchanger for new energy vehicles in the prior art (publication number CN221944955U) mentions that "a front cover plate is fixedly installed on the front side of the outer shell with screws, and mounting plates are fixedly installed at the four corners of the outer shell. It also includes: an air inlet pipe is fixedly installed through the left side of the upper surface of the outer shell, and the air inlet pipe is connected to a heat exchange pipe fixedly installed inside the outer shell. The heat exchange pipe is configured as a bent structure, and the outlet end of the heat exchange pipe is connected to the air outlet pipe; a cooler is fixedly installed in the middle position inside the outer shell, and the middle position of the heat exchange pipe is connected through the cooler to achieve the purpose of heat exchange." However, the heat exchange contact area in the prior art is small, the heat exchange efficiency is low, and it is not convenient to disassemble and replace for inspection and maintenance. The overall setup is not efficient, convenient and practical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, an electric vehicle air conditioning heat exchanger is provided to solve the problems of small heat exchange contact area, low heat exchange efficiency, inconvenient disassembly and replacement for inspection and maintenance, and overall inefficient and impractical setup in existing technologies.

[0005] To achieve the above objectives, an electric vehicle air conditioning heat exchanger is provided, comprising an external mounting bracket, a condenser heat exchange pipe, and a middle unit. The external mounting bracket has a left sleeve frame on its left side and a right sleeve frame on its right side. Positioning frames are fitted inside both the left and right sleeve frames, and heat exchange chambers are opened within the positioning frames. Condenser heat exchange pipes are assembled inside the heat exchange chambers, and multiple sets of fins are attached to the outer surface of the upper tube of the condenser heat exchange pipes. A middle sleeve frame is provided in the middle of the external mounting bracket, and a middle unit is fitted inside the middle sleeve frame. Multiple sets of hot air chambers are arranged parallel from top to bottom inside the middle unit, and a connecting channel connects two adjacent sets of hot air chambers.

[0006] Furthermore, the left and right sleeve frames are symmetrical about the center line of the outer mounting bracket, and two sets of fixing plates are fixed on the upper and lower end faces of the left and right sleeve frames, and screw holes are provided on the fixing plates.

[0007] Furthermore, the outer mounting frame is made of smooth galvanized stainless steel, and two sets of semi-circular arc-shaped notches are provided on the left side of the left frame and the right side of the right frame, and a set of semi-circular arc-shaped notches are provided on the upper and lower sides of the middle frame.

[0008] Furthermore, multiple sets of positioning blocks are provided on both the left and right sides of the positioning frame, and the positioning blocks adopt a U-shaped positioning block structure.

[0009] Furthermore, the positioning frame has an upper sleeve hole and a lower sleeve hole on the outer side, and multiple sets of side openings are provided on the other side of the positioning frame near the middle body.

[0010] Furthermore, a refrigerant inlet is provided at the upper left part of the condensing heat exchange pipe, and a refrigerant outlet is provided at the lower left part of the condensing heat exchange pipe, and a handle is fixed between the refrigerant inlet and the handle.

[0011] Furthermore, the fins attached to the outer surface of the condensation heat exchange pipe are made of aluminum metal sheets, and the sheets are circular sheets with a thickness of mm.

[0012] Furthermore, the upper end of the middle body is provided with an air inlet, the lower end of the middle body is provided with an air outlet, and the left and right side walls of the hot air chamber are respectively provided with a left channel and a right channel. The other end of the left channel and the right channel are respectively connected to the positioning frame on the positioning frame on the same side. A set of turbine fans are installed in both the left channel and the right channel. At the same time, the hot air chamber and the middle channel are wrapped with a layer of heat insulation, which is made of high-density sponge material.

[0013] The beneficial effects of this utility model are as follows: 1. The structure of the external mounting bracket of this utility model is not only sturdy, corrosion-resistant and durable, but also facilitates the positioning bracket and the middle body to be installed straight down from the Z-axis, which is convenient and quick to assemble, helps to improve the installation efficiency of this equipment, and is also convenient for later maintenance, disassembly or replacement, making it more convenient and practical.

[0014] 2. The condensing heat exchange pipe of this utility model can be conveniently, accurately and quickly fitted into the heat exchange cavity by positioning block, and is safe and stable after installation to avoid movement. Moreover, the gap between the outer surface of the condensing heat exchange pipe and the inner side wall of the heat exchange cavity can be used for heat exchange by hot airflow contacting the condensing heat exchange pipe, which is safer and more sealed.

[0015] 3. The handle in this utility model facilitates the secure holding of the refrigerant inlet and outlet on the left side of the condenser heat exchange pipe, allowing for quick gripping and lifting of the entire condenser heat exchange pipe. Furthermore, the fins attached to the outer surface of the condenser heat exchange pipe help increase the heat exchange area. Simultaneously, positioning frames with condenser heat exchange pipes are assembled inside both the left and right sleeves, forming a dual-chamber heat exchange design. The dual-chamber design improves heat exchange efficiency, making it more efficient and practical.

[0016] 4. The design of the main body in this utility model facilitates the delivery of hot air to the hot air chamber. Through the action of the turbine fans in the left and right channels, the hot air can be drawn into the heat exchange chambers on both sides, making large-area contact with the condensation heat exchange pipes in the heat exchange chambers and the fins attached to their outer surfaces, thereby achieving the purpose of heat exchange, which is more efficient and convenient. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the external mounting bracket according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the condensate pipe installed inside the positioning frame according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the positioning frame structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the condensate pipe structure according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the internal structure of the machine body in an embodiment of this utility model.

[0018] In the diagram: 1. External mounting bracket; 10. Left sleeve frame; 11. Fixing plate; 12. Middle sleeve frame; 13. Right sleeve frame; 2. Positioning bracket; 20. Heat exchange chamber; 21. Positioning block; 22. Side opening; 23. Upper sleeve hole; 24. Lower sleeve hole; 3. Condensation heat exchange pipe; 30. Refrigerant inlet; 31. Handle; 32. Refrigerant outlet; 4. Middle body; 40. Hot air chamber; 41. Middle connecting channel; 42. Left channel; 43. Right channel; 44. Turbine fan; 45. Insulation layer; 46. Air inlet; 47. Air outlet. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0020] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a schematic diagram of the external mounting bracket according to an embodiment of the present utility model. Figure 3 This is a schematic diagram of the condensate pipe installed in the positioning frame according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the positioning frame structure according to an embodiment of the present utility model. Figure 5 This is a schematic diagram of the condensate pipe structure according to an embodiment of the present utility model. Figure 6 This is a schematic diagram of the internal structure of the machine body in an embodiment of this utility model.

[0022] Reference Figures 1 to 6 As shown, this utility model provides an electric vehicle air conditioning heat exchanger, including an external mounting frame 1, a condensing heat exchange pipe 3, and a middle unit 4. A left sleeve frame 10 is provided on the left side of the external mounting frame 1, and a right sleeve frame 13 is provided on the right side. Positioning frames 2 are fitted inside both the left and right sleeve frames 10 and 13, and heat exchange chambers 20 are opened within the positioning frames 2. Condensing heat exchange pipes 3 are assembled inside the heat exchange chambers 20, and multiple sets of fins are attached to the outer surface of the upper pipe of the condensing heat exchange pipes 3. A middle sleeve frame 12 is provided in the middle of the external mounting frame 1, and the middle unit 4 is fitted inside the middle sleeve frame 12. Multiple sets of hot air chambers 40 are arranged parallel from top to bottom inside the middle unit 4, and a connecting channel 41 connects two adjacent sets of hot air chambers 40. In this embodiment, the left sleeve frame 10 and the right sleeve frame 13 are symmetrical about the center line of the outer mounting bracket 1, and two sets of fixing plates 11 are fixed to the upper and lower end faces of the left sleeve frame 10 and the right sleeve frame 13, and screw holes are provided on the fixing plates 11; the outer mounting bracket 1 is made of smooth galvanized stainless steel, and two sets of semi-circular arc-shaped notches are provided on the left side face of the left sleeve frame 10 and the right side face of the right sleeve frame 13, and a set of semi-circular arc-shaped notches are provided on the upper and lower sides of the middle sleeve frame 12. As a preferred embodiment, the structure of the external mounting bracket 1 of this utility model is not only sturdy, corrosion-resistant and durable, but also facilitates the positioning bracket 2 and the middle body 4 to be installed straight down from the Z-axis direction, which is convenient for quick assembly, helps to improve the installation efficiency of this equipment, and is also convenient for later maintenance, disassembly or replacement, making it more convenient and practical.

[0023] In this embodiment, multiple sets of positioning blocks 21 are provided on both the left and right sides of the positioning frame 2, and the positioning blocks 21 adopt a U-shaped positioning block structure; an upper sleeve hole 23 and a lower sleeve hole 24 are provided on the outer side of the positioning frame 2, and multiple sets of side openings 22 are provided on the other side of the positioning frame 2 near the middle body 4.

[0024] As a preferred embodiment, the condensing heat exchange pipe 3 of this utility model is conveniently, accurately and quickly fitted into the heat exchange cavity 20 by the positioning block 21. After installation, it is safe and stable, preventing movement. Moreover, the gap between the outer surface of the condensing heat exchange pipe 3 and the inner wall of the heat exchange cavity 20 can be used for heat exchange by hot airflow contacting the condensing heat exchange pipe 3, which is safer and more sealed.

[0025] In this embodiment, a refrigerant inlet 30 is provided at the upper left part of the condensing heat exchange pipe 3, and a refrigerant outlet 32 ​​is provided at the lower left part of the condensing heat exchange pipe 3. A handle 31 is fixed between the refrigerant inlet 30 and the handle 31. The fins attached to the outer surface of the condensing heat exchange pipe 3 are made of aluminum metal sheets, and the sheets are circular sheets with a thickness of 3mm.

[0026] As a preferred embodiment, the handle 31 in this utility model facilitates the secure holding of the refrigerant inlet 30 and refrigerant outlet 32 ​​on the left side of the condensing heat exchange pipe 3, allowing for quick gripping and lifting of the entire condensing heat exchange pipe 3. Furthermore, the fins attached to the outer surface of the condensing heat exchange pipe 3 help increase the heat exchange area. Simultaneously, positioning frames 2 with the condensing heat exchange pipe 3 are assembled inside both the left and right sleeve frames 10 and 13, forming a dual-chamber heat exchange design. The pipe layout of the dual-chamber design improves heat exchange efficiency, making it more efficient and practical.

[0027] In this embodiment, an air inlet 46 is provided at the upper end of the middle body 4, and an air outlet 47 is provided at the lower end of the middle body 4. A left channel 42 and a right channel 43 are respectively opened on the left and right side walls of the hot air chamber 40. The other ends of the left channel 42 and the right channel 43 are respectively connected to the positioning frame 2 on the same side. A set of turbine fans 44 are installed in both the left channel 42 and the right channel 43. At the same time, a layer of heat insulation layer 45 is wrapped around the hot air chamber 40 and the middle connecting channel 41. The heat insulation layer 45 is made of high-density sponge material.

[0028] As a preferred embodiment, the design of the body 4 in this invention facilitates the delivery of hot air to the hot air chamber 40. Through the air extraction action of the turbine fan 44 in the left channel 42 and the right channel 43, the hot air can be drawn into the heat exchange chambers 20 on both sides, making large-area contact with the condensation heat exchange pipe 3 in the heat exchange chamber 20 and the fins attached to its outer surface, thereby achieving the purpose of heat exchange, which is more efficient and convenient.

[0029] This invention effectively solves the problems of small heat exchange contact area, low heat exchange efficiency, inconvenient disassembly and replacement for inspection and maintenance, and overall inefficient and impractical design in the prior art. This invention adopts a dual-chamber heat exchange design, which improves heat exchange efficiency through the piping layout of the dual-chamber design. Moreover, the positioning frame, condensation heat exchange pipe and the middle body are easy to assemble and disassemble quickly for inspection, maintenance and replacement, making it more efficient, convenient and practical.

[0030] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A heat exchanger for an electric vehicle air conditioner, characterized in that: The device includes an external mounting frame (1), a condensing heat exchange pipe (3), and a middle body (4). The left side of the external mounting frame (1) is provided with a left sleeve frame (10), and the right side of the external mounting frame (1) is provided with a right sleeve frame (13). The left sleeve frame (10) and the right sleeve frame (13) are both fitted with positioning frames (2), and the positioning frames (2) are provided with heat exchange chambers (20). The heat exchange chambers (20) are assembled with condensing heat exchange pipes (3), and the upper tube surface of the condensing heat exchange pipes (3) is attached with multiple sets of fins. The middle part of the external mounting frame (1) is provided with a middle sleeve frame (12), and the middle body (4) is fitted inside the middle sleeve frame (12). The middle body (4) is provided with multiple sets of hot air chambers (40) arranged in parallel from top to bottom inside, and the two adjacent sets of hot air chambers (40) are connected by a middle connecting channel (41).

2. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The left sleeve (10) and the right sleeve (13) are symmetrical about the center line of the outer mounting bracket (1), and two sets of fixing plates (11) are fixed on the upper and lower end faces of the left sleeve (10) and the right sleeve (13), and screw holes are provided on the fixing plates (11).

3. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The outer mounting bracket (1) is made of stainless steel with a smooth galvanized surface. Two sets of semi-circular arc-shaped notches are provided on the left side of the left frame (10) and the right side of the right frame (13). A set of semi-circular arc-shaped notches are provided on the upper and lower sides of the middle frame (12).

4. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The positioning frame (2) has multiple sets of positioning blocks (21) on both the left and right sides, and the positioning blocks (21) adopt a U-shaped positioning block structure.

5. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The positioning frame (2) has an upper sleeve hole (23) and a lower sleeve hole (24) on the outer side, and multiple sets of side openings (22) are opened on the other side of the positioning frame (2) near the middle body (4).

6. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The upper left part of the condensing heat exchange pipe (3) is provided with a refrigerant inlet (30), and the lower left part of the condensing heat exchange pipe (3) is provided with a refrigerant outlet (32). A handle (31) is fixed between the refrigerant inlet (30) and the handle (31).

7. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The fins attached to the outer surface of the condensation heat exchange pipe (3) are made of aluminum metal sheets, and the sheets are circular sheets with a thickness of 3 mm.

8. The electric vehicle air conditioning heat exchanger according to claim 1, characterized in that, The upper end of the middle body (4) is provided with an air inlet (46), and the lower end of the middle body (4) is provided with an air outlet (47). The left and right side walls of the hot air chamber (40) are respectively provided with a left channel (42) and a right channel (43). The other end of the left channel (42) and the right channel (43) are respectively connected to the positioning frame (2) on the same side. A set of turbine fans (44) are installed in both the left channel (42) and the right channel (43). At the same time, the hot air chamber (40) and the middle connecting channel (41) are wrapped with a layer of heat insulation (45). The heat insulation layer (45) is made of high-density sponge material.

Images