Electric compressor and automobile air conditioning system

Abstract

The utility model relates to the technical field of automobile air conditioner compressors, in particular to an electric compressor and an automobile air conditioner system.The electric compressor comprises a compressor, a controller and a heating module, the controller is arranged on one end face of the compressor in the axis direction of the compressor, and the heating module is arranged on the end face, away from the compressor, of the controller; the whole structure is in a coaxial columnar layout, the size of the whole system is greatly reduced, the installation space in an automobile is saved, and layout and design of an automobile air conditioning system are facilitated; the PCB is arranged in the controller, the three-phase terminal and the busbar are arranged on the PCB, the controller drives the compressor to operate through the three-phase terminal, the controller drives the heating module to heat through the busbar, and internal electric connection of the compressor, the controller and the heating module is achieved through the three-phase terminal and the busbar. Therefore, external wire harness connection points can be reduced, the problems of poor contact, abrasion and the like caused by wire harness connection are avoided, and the stability and the reliability of a system are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning compressor technology, and in particular to an electric compressor and an automotive air conditioning system. Background Technology

[0002] In automotive air conditioning and thermal management systems, traditional electric compressors and heating modules (such as PTC heaters) are typically integrated into top-mounted / side-mounted heating modules, or used in separate designs or independent integrated structures. This leads to the following technical problems:

[0003] (1) Redundancy in installation space:

[0004] In the upper-mounted integrated heating module solution, the control box is mounted next to the compressor, which requires additional radial installation space. This can easily cause space conflicts, especially in the compact cabin layout of new energy vehicles.

[0005] In the side-mounted integrated heating module solution, the heating module extends along the compressor axis, which increases the overall length of the compressor and requires a longer axial installation space.

[0006] (2) Insufficient thermal management efficiency:

[0007] The split-type structure has complex circuit connections, high signal transmission loss, and significant response delay of the heating module.

[0008] In traditional heating channel designs, the coolant has a single flow path, which easily creates dead zones, resulting in uneven heat exchange and low heat utilization.

[0009] (3) High assembly complexity:

[0010] Independent components require separate connection to piping and circuitry, making installation cumbersome, increasing labor costs, and raising the risk of interface sealing issues.

[0011] Therefore, how to achieve efficient integration of compression and heating functions, while optimizing the flow channel design to improve thermal management efficiency, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0012] The technical problem to be solved by this utility model is to provide an electric compressor and an automotive air conditioning system that are compact in structure, highly stable and reliable.

[0013] To solve the above-mentioned technical problems, the first technical solution adopted by this utility model is as follows:

[0014] An electric compressor includes a compressor, a controller, and a heating module. The controller is disposed on one end face of the compressor along the axial direction of the compressor, and the heating module is disposed on the end face of the controller away from the compressor.

[0015] The controller has a PCB board inside, which has three-phase terminals and a busbar. The controller drives the compressor to operate through the three-phase terminals and drives the heating module to heat through the busbar.

[0016] Furthermore, the heating module includes a hollow heating shell with a heating steel plate inside. The controller is electrically connected to the heating steel plate via a busbar to drive the heating steel plate to generate heat.

[0017] Furthermore, the heating housing is provided with a flow channel cavity inside, and the heating steel plate is placed over the opening of the flow channel cavity and closes the opening of the flow channel cavity. The flow channel cavity is used to contain coolant and is heated by the heat generated by the heating steel plate.

[0018] Furthermore, one end of the flow channel cavity is provided with an inlet and an outlet, and the inside of the flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet, and the outlet groove is located near the outlet and is connected to the outlet.

[0019] Furthermore, the inner wall of the water inlet groove that is far from the water inlet is inclined, and the inclination height of the inner wall of the water inlet groove that is far from the water inlet gradually increases along the direction from the water inlet toward the interior of the flow channel cavity;

[0020] The inner wall of the water outlet groove, which is far from the water outlet, is inclined, and the inclination height of the inner wall of the water outlet groove, which is far from the water outlet, gradually increases along the direction from the water outlet toward the interior of the flow channel cavity.

[0021] Furthermore, the inner walls of the water inlet groove and the water outlet groove are inclined and close to each other, and the inclination height of the inner wall of the water inlet groove gradually increases along the direction from the water inlet groove to the water outlet groove.

[0022] The inner wall of the water outlet groove and the water inlet groove are inclined and close to each other. The inclination height of the inner wall of the water outlet groove gradually increases along the direction from the water outlet groove to the water inlet groove.

[0023] Furthermore, multiple heat dissipation protrusions are arranged on the inner bottom surface of the flow channel cavity, and the multiple heat dissipation protrusions form multiple flow channels.

[0024] Furthermore, the heating steel plate is provided with a conductor, and the busbar drives the heating steel plate to generate heat through the conductor.

[0025] Furthermore, the three-phase terminals are mounted on the end face of the PCB board near the compressor, and the busbar is mounted on the end face of the PCB board near the heating module.

[0026] The second technical solution adopted in this utility model is:

[0027] An automotive air conditioning system includes the aforementioned electric compressor.

[0028] The beneficial effects of this utility model are as follows:

[0029] This solution places the controller on one end of the compressor along its axis, and the heating module on the end of the controller away from the compressor. By stacking the controller and heating module along the compressor axis, the overall structure is arranged in a coaxial column shape, which greatly reduces the size of the entire system, saves installation space inside the car, and facilitates the layout and design of the automotive air conditioning system. The controller has a PCB board with three-phase terminals and a busbar inside. The controller drives the compressor through the three-phase terminals and drives the heating module through the busbar. The three-phase terminals and busbar enable internal electrical connection between the compressor, controller, and heating module, reducing external wiring harness connection points and avoiding problems such as poor contact and wear caused by wiring harness connections, thus improving the stability and reliability of the system. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the electric compressor of this utility model;

[0031] Figure 2 This is a partial structural schematic diagram of the electric compressor of this utility model;

[0032] Figure 3 This is a partial structural schematic diagram of the electric compressor of this utility model;

[0033] Figure 4 This is a partial structural schematic diagram of the electric compressor of this utility model;

[0034] Label Explanation:

[0035] 1. Compressor; 2. Controller; 21. PCB board; 22. Three-phase terminal; 23. Busbar; 3. Heating module; 31. Heating housing; 32. Heating steel plate; 321. Conductor; 33. Flow channel cavity; 331. Water inlet groove; 332. Water outlet groove; 333. Heat dissipation protrusion group; 334. Flow channel. Detailed Implementation

[0036] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0037] Please refer to Figures 1 to 4 The first technical solution adopted by this utility model is:

[0038] An electric compressor includes a compressor, a controller, and a heating module. The controller is disposed on one end face of the compressor along the axial direction of the compressor, and the heating module is disposed on the end face of the controller away from the compressor.

[0039] The controller has a PCB board inside, which has three-phase terminals and a busbar. The controller drives the compressor to operate through the three-phase terminals and drives the heating module to heat through the busbar.

[0040] As can be seen from the above description, the beneficial effects of this utility model are as follows:

[0041] This solution places the controller on one end of the compressor along its axis, and the heating module on the end of the controller away from the compressor. By stacking the controller and heating module along the compressor axis, the overall structure is arranged in a coaxial column shape, which greatly reduces the size of the entire system, saves installation space inside the car, and facilitates the layout and design of the automotive air conditioning system. The controller has a PCB board with three-phase terminals and a busbar inside. The controller drives the compressor through the three-phase terminals and drives the heating module through the busbar. The three-phase terminals and busbar enable internal electrical connection between the compressor, controller, and heating module, reducing external wiring harness connection points and avoiding problems such as poor contact and wear caused by wiring harness connections, thus improving the stability and reliability of the system.

[0042] Furthermore, the heating module includes a hollow heating shell with a heating steel plate inside. The controller is electrically connected to the heating steel plate via a busbar to drive the heating steel plate to generate heat.

[0043] Furthermore, the heating housing is provided with a flow channel cavity inside, and the heating steel plate is placed over the opening of the flow channel cavity and closes the opening of the flow channel cavity. The flow channel cavity is used to contain coolant and is heated by the heat generated by the heating steel plate.

[0044] Furthermore, one end of the flow channel cavity is provided with an inlet and an outlet, and the inside of the flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet, and the outlet groove is located near the outlet and is connected to the outlet.

[0045] Furthermore, the inner wall of the water inlet groove that is far from the water inlet is inclined, and the inclination height of the inner wall of the water inlet groove that is far from the water inlet gradually increases along the direction from the water inlet toward the interior of the flow channel cavity;

[0046] The inner wall of the water outlet groove, which is far from the water outlet, is inclined, and the inclination height of the inner wall of the water outlet groove, which is far from the water outlet, gradually increases along the direction from the water outlet toward the interior of the flow channel cavity.

[0047] As can be seen from the above description, the inclined inner wall design of the inlet and outlet grooves can guide the coolant to flow evenly into and out of the flow channel cavity, avoiding the stagnation and turbulence of the coolant in the flow channel and improving the flow efficiency of the coolant.

[0048] Furthermore, the inner walls of the water inlet groove and the water outlet groove are inclined and close to each other, and the inclination height of the inner wall of the water inlet groove gradually increases along the direction from the water inlet groove to the water outlet groove.

[0049] The inner wall of the water outlet groove and the water inlet groove are inclined and close to each other. The inclination height of the inner wall of the water outlet groove gradually increases along the direction from the water outlet groove to the water inlet groove.

[0050] As can be seen from the above description, the inner walls of the water inlet groove and the water outlet groove are inclined, which can guide the coolant to flow into and out of the flow channel cavity evenly, further avoiding the stagnation and turbulence of the coolant in the flow channel and improving the flow efficiency of the coolant.

[0051] Furthermore, multiple heat dissipation protrusions are arranged on the inner bottom surface of the flow channel cavity, and the multiple heat dissipation protrusions form multiple flow channels.

[0052] As can be seen from the above description, the multiple flow channels formed by the heat dissipation protrusions increase the contact area between the coolant and the heating steel plate, enabling the coolant to absorb heat more fully and improving heating efficiency. At the same time, it makes the coolant heating more uniform, ensuring the heating effect of the car air conditioner.

[0053] Furthermore, the heating steel plate is provided with a conductor, and the busbar drives the heating steel plate to generate heat through the conductor.

[0054] As can be seen from the above description, the busbar is electrically connected to the heating steel plate through a conductor. It has good conductivity and can stably transmit current to drive the heating steel plate to generate heat, thus ensuring the normal operation of the heating module.

[0055] Furthermore, the three-phase terminals are mounted on the end face of the PCB board near the compressor, and the busbar is mounted on the end face of the PCB board near the heating module.

[0056] As can be seen from the above description, the three-phase terminals and busbars are respectively installed on both ends of the PCB board, which is a reasonable layout and can reduce interference between electrical components.

[0057] The second technical solution adopted in this utility model is:

[0058] An automotive air conditioning system includes the aforementioned electric compressor.

[0059] Please refer to Figures 1 to 4 As shown, Embodiment 1 of this utility model is as follows:

[0060] Please refer to Figure 1 An electric compressor includes a compressor 1, a controller 2, and a heating module 3. The controller 2 is disposed on one end face of the compressor 1 along the axial direction of the compressor 1, and the heating module 3 is disposed on the end face of the controller 2 away from the compressor 1.

[0061] Please refer to Figure 2 The controller 2 has a PCB board 21 inside, and the PCB board 21 has three-phase terminals 22 and busbars 23. The controller 2 drives the compressor 1 to operate through the three-phase terminals 22 and drives the heating module 3 to heat through the busbars 23.

[0062] Please refer to Figure 3 The heating module 3 includes a hollow heating shell 31, and a heating steel plate 32 is provided inside the heating shell 31. The controller 2 is electrically connected to the heating steel plate 32 through the busbar 23 to drive the heating steel plate 32 to generate heat.

[0063] Please refer to Figure 4 The heating housing 31 is further provided with a flow channel cavity 33. The heating steel plate 32 covers the opening of the flow channel cavity 33 and closes the opening of the flow channel cavity 33. The flow channel cavity 33 is used to contain coolant and is heated by the heat generated by the heating steel plate 32.

[0064] Please refer to Figure 4 The flow channel cavity 33 is provided with an inlet and an outlet at one end. The flow channel cavity 33 is provided with an inlet groove 331 and an outlet groove 332 inside. The inlet groove 331 is located near the inlet and is connected to the inlet. The outlet groove 332 is located near the outlet and is connected to the outlet.

[0065] Please refer to Figure 4 The inner wall of the water inlet groove 331, which is far from the water inlet, is inclined, and the inclination height of the inner wall of the water inlet groove 331, which is far from the water inlet, gradually increases along the direction from the water inlet to the interior of the flow channel cavity 33.

[0066] The inner wall of the water outlet groove 332, which is far from the water outlet, is inclined, and the inclination height of the inner wall of the water outlet groove 332, which is far from the water outlet, gradually increases along the direction from the water outlet to the interior of the flow channel cavity 33.

[0067] Please refer to Figure 4The inner walls of the water inlet groove 331 and the water outlet groove 332 are inclined and close to each other. The inclination height of the inner wall of the water inlet groove 331 gradually increases along the direction from the water inlet groove 331 to the water outlet groove 332.

[0068] The inner walls of the water outlet groove 332 and the water inlet groove 331 are inclined and close to each other. The inclination height of the inner wall of the water outlet groove 332 gradually increases along the direction from the water outlet groove 332 to the water inlet groove 331.

[0069] Please refer to Figure 4 Multiple heat dissipation protrusions 333 are arranged on the inner bottom surface of the flow channel cavity 33, and the multiple heat dissipation protrusions 333 form multiple flow channels 334.

[0070] The heating steel plate 32 is provided with a conductor 321, and the busbar 23 drives the heating steel plate 32 to generate heat through the conductor 321.

[0071] Please refer to Figure 2 The three-phase terminal 22 is mounted on the end face of the PCB board 21 near the compressor 1, and the busbar 23 is mounted on the end face of the PCB board 21 near the heating module 3.

[0072] Please refer to Figures 1 to 4 As shown, Embodiment 2 of this utility model is as follows:

[0073] An automotive air conditioning system includes the electric compressor 1 as described in Embodiment 1.

[0074] In summary, the electric compressor and automotive air conditioning system provided by this utility model have a controller positioned on one end face of the compressor along its axial direction, and a heating module positioned on the end face of the controller away from the compressor. By stacking the controller and heating module along the compressor's axial direction, the overall structure is arranged in a coaxial column shape, greatly reducing the overall system volume, saving installation space inside the vehicle, and facilitating the layout and design of the automotive air conditioning system. Furthermore, the controller has a PCB board with three-phase terminals and a busbar inside. The controller drives the compressor through the three-phase terminals and drives the heating module through the busbar. The three-phase terminals and busbar enable internal electrical connection between the compressor, controller, and heating module, reducing external wiring harness connection points and avoiding problems such as poor contact and wear caused by wiring harness connections, thus improving the system's stability and reliability.

[0075] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric compressor, characterized in that, It includes a compressor, a controller, and a heating module. The controller is disposed on one end face of the compressor along the axial direction of the compressor, and the heating module is disposed on the end face of the controller away from the compressor. The controller has a PCB board inside, which has three-phase terminals and a busbar. The controller drives the compressor to operate through the three-phase terminals and drives the heating module to heat through the busbar.

2. The electric compressor according to claim 1, characterized in that, The heating module includes a hollow heating shell with a heating steel plate inside. The controller is electrically connected to the heating steel plate via a busbar to drive the heating steel plate to generate heat.

3. The electric compressor according to claim 2, characterized in that, The heating housing is further provided with a flow channel cavity. The heating steel plate covers the opening of the flow channel cavity and seals the opening of the flow channel cavity. The flow channel cavity is used to contain coolant and is heated by the heat generated by the heating steel plate.

4. The electric compressor according to claim 3, characterized in that, One end of the flow channel cavity is provided with an inlet and an outlet. The inside of the flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet. The outlet groove is located near the outlet and is connected to the outlet.

5. The electric compressor according to claim 4, characterized in that, The inner wall of the water inlet groove, which is far from the water inlet, is inclined, and the inclination height of the inner wall of the water inlet groove, which is far from the water inlet, gradually increases along the direction from the water inlet toward the interior of the flow channel cavity; The inner wall of the water outlet groove, which is far from the water outlet, is inclined, and the inclination height of the inner wall of the water outlet groove, which is far from the water outlet, gradually increases along the direction from the water outlet toward the interior of the flow channel cavity.

6. The electric compressor according to claim 5, characterized in that, The inner wall of the water inlet groove and the water outlet groove are inclined and close to each other, and the inclination height of the inner wall of the water inlet groove gradually increases along the direction from the water inlet groove to the water outlet groove. The inner wall of the water outlet groove and the water inlet groove are inclined and close to each other. The inclination height of the inner wall of the water outlet groove gradually increases along the direction from the water outlet groove to the water inlet groove.

7. The electric compressor according to claim 3, characterized in that, Multiple heat dissipation protrusions are arranged on the inner bottom surface of the flow channel cavity, and the multiple heat dissipation protrusions form multiple flow channels.

8. The electric compressor according to claim 2, characterized in that, The heating steel plate is provided with a conductor, and the busbar drives the heating steel plate to generate heat through the conductor.

9. The electric compressor according to claim 1, characterized in that, The three-phase terminals are installed on the end face of the PCB board near the compressor, and the busbar is installed on the end face of the PCB board near the heating module.

10. An automotive air conditioning system, characterized in that, Includes the electric compressor as described in any one of claims 1-9.

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