OCDC and controller integrated shell structure and power supply system

Abstract

The utility model relates to the field of chargers of electric automobiles, and discloses an OCDC and controller integrated shell structure and a power supply system. The integrated shell structure comprises a main shell, a cover plate, an OBC module input connector, a DC-DC module output connector, a low-voltage signal connector and a positive and negative bus transmission connector. The cover plate is arranged above the main shell in a sealing manner, the main shell is divided into a left main cavity and a right main cavity, a main retaining wall can be arranged between the left main cavity and the right main cavity, the OBC and the DC-DC module are arranged in the left main cavity, and the MCU module is arranged in the right main cavity; and the plurality of plug-ins are sequentially arranged on the front surface of the main shell. The shell structure is integrally designed, the cover plate and the main shell are directly sealed, the sealing effect is good, meanwhile, the shell is divided into the left main cavity and the right main cavity, the OBC module and the DC-DC module are arranged, the main retaining wall is arranged to achieve electrical isolation, meanwhile, various plug-ins are reasonably placed on the front face of the main shell, it is guaranteed that the plug-ins are placed simply, the cost is reduced, and the occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of charger of electric automobile, concretely relates to a kind of OCDC and controller integrated shell structure and power system. BACKGROUND

[0002] With the development of new energy vehicles, integration, miniaturization is more and more urgent, traditional small three-electricity split type arrangement cannot meet the requirements of high performance, compact design and low cost of current automobile manufacturers, and is gradually eliminated. Currently, the integrated OBC+DC-DC of electric drive products is mostly split shell, and the connection bolt is locked physically integrated. The components of split design are often large in size, and more space is needed to accommodate them. It occupies more space, has multiple connection interfaces between different components, increases the number of sealing surfaces, and has a higher risk of sealing failure, which may cause problems such as electric leakage and water leakage. At the same time, split design requires the use of more connectors and packaging materials, resulting in increased overall manufacturing cost. After each component is independently packaged, the heat dissipation efficiency is often low, the thermal conductivity between components is poor, resulting in uneven heat dissipation, and thus affecting the stability and performance of the system. SUMMARY

[0003] In order to overcome the above technical problems, the utility model provides an OCDC and controller integrated shell structure and power system. The integrated shell structure is designed in one piece, the cover plate and the shell are directly sealed, the sealing effect is good, the shell is divided into left and right main cavities, the OBC module and the DC-DC module are arranged, the main retaining wall is provided to realize electrical isolation, and the OBC module input connector, the DC-DC module output connector, the low-voltage signal connector and the positive and negative busbar connector are placed on the front face of the main shell to ensure simple placement of the connectors, reduce cost and reduce space occupation.

[0004] In order to achieve the above purpose, the utility model provides an integrated shell structure, which comprises:

[0005] The main shell is divided into left and right main cavities, a main retaining wall is provided between the left and right main cavities, the left main cavity is used to arrange the OBC module and the DC-DC module, and the right main cavity is used to arrange the MCU module;

[0006] The OBC module input connector and the DC-DC module output connector are arranged in sequence on the front face of the main shell near the left main cavity;

[0007] The low-voltage signal connector and the positive and negative busbar connector are arranged in sequence on the front face of the main shell near the right main cavity;

[0008] The cover plate is sealingly arranged above the main shell.

[0009] Preferably, the left main cavity comprises:

[0010] OBC input wiring chamber, arranged below the left side of the left main cavity, for accommodating the OBC module input connector;

[0011] DC input chamber, arranged directly below the left main cavity, for accommodating the DC-DC module output connector;

[0012] OBC output wiring chamber, arranged below the right side of the left main cavity, for accommodating the output connector of the DC-DC module.

[0013] Preferably, the left main cavity further comprises:

[0014] Low-voltage auxiliary source shielding chamber, arranged in the middle of the left main cavity near the DC input chamber;

[0015] AC filter plate chamber, arranged on the left side of the left main cavity near the OBC input wiring chamber;

[0016] HV filter plate chamber, arranged on the right side of the left main cavity near the OBC output wiring chamber.

[0017] Preferably, the left main cavity further comprises:

[0018] Electrolytic capacitor chamber, arranged above the right side of the left main cavity.

[0019] Preferably, the left main cavity further comprises:

[0020] Magnetic element chamber, arranged in the middle of the left main cavity, and a water channel retaining wall is arranged around the magnetic element chamber.

[0021] Preferably, the integrated shell structure further comprises a water channel, which sequentially passes through the left side retaining wall of the left main cavity, the bottom of the upper left side of the left main cavity, the water channel retaining wall, the bottom of the upper right side of the left main cavity, and the bottom of the right main cavity.

[0022] Preferably, the integrated shell structure further comprises:

[0023] Water inlet, arranged on the left side retaining wall of the left main cavity, connected with one end of the water channel;

[0024] Water outlet, arranged on the right side retaining wall of the right main cavity, connected with the other end of the water channel.

[0025] Preferably, the integrated shell structure further comprises:

[0026] An EKK / PTC connector is arranged on the front surface of the main housing between the DC-DC module output connector and the low-voltage signal connector.

[0027] Preferably, the cover plate is provided with a gas permeable valve.

[0028] The utility model discloses a power supply system on the other aspect, the power supply system includes:

[0029] The integrated housing structure of any one of the above claims;

[0030] An OBC module is arranged in the main left cavity of the integrated housing structure.

[0031] A DC-DC module is arranged in the main left cavity of the integrated housing structure.

[0032] An MCU module is arranged in the main right cavity of the integrated housing structure and electrically connected with the OBC module and the DC-DC module.

[0033] Through the above technical scheme, the integrated housing structure is designed in one piece, the cover plate and the housing are directly sealed, the sealing effect is good, meanwhile, the main housing is divided into left and right main cavities, the OBC module and the DC-DC module are arranged, the main baffle is arranged to realize electrical isolation, meanwhile, the OBC module input connector, the DC-DC module output connector, the low-voltage signal connector and the positive and negative busbar connectors are reasonably arranged on the front surface of the main housing, the arrangement of the connectors is simple, the cost is reduced, and the occupied space is reduced; meanwhile, the left main cavity is reasonably arranged with multiple functional cavities, the space utilization rate is improved, the baffle is arranged between the multiple functional cavities, and the EMC shielding effect is achieved; the water channel is arranged along the direction of the magnetic element cavity and the main right cavity, the heat dissipation effect is guaranteed, meanwhile, the gas permeable valve is arranged on the cover plate, the air pressure balance in the housing is guaranteed, and the reliability and stability in the housing are realized. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structure schematic view of the main housing of an OCDC and controller integrated housing structure according to an embodiment of the utility model;

[0035] Figure 2 is a structure schematic view of the left main cavity of an OCDC and controller integrated housing structure according to an embodiment of the utility model.

[0036] REFERENCE SIGNS

[0037] 1, main housing 11, left main cavity

[0038] 12, right main cavity 13, main baffle

[0039] 14, OBC module input connector 15, DC-DC module output connector

[0040] 16, low-voltage signal connector 17, positive and negative busbar connector

[0041] 18, water inlet 19, water outlet

[0042] 10, EKK / PTC connector 111, OBC input wiring chamber

[0043] 112, DC input chamber 113, low-voltage auxiliary source shielding chamber

[0044] 114, AC filter plate chamber 115, HV filter plate chamber

[0045] 116, electrolytic capacitor chamber 117, magnetic element chamber

[0046] 1171, water channel retaining wall 118, OBC output wiring chamber DETAILED DESCRIPTION

[0047] The specific embodiments of the utility model embodiments will be described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model embodiments, and are not used to limit the utility model embodiments.

[0048] Figure 1 is a structure schematic view of a main shell of an OCDC and controller integrated shell structure according to an embodiment of the utility model; in Figure 1 , the integrated shell structure includes a main shell, a cover plate, an OBC module input connector, a DC-DC module output connector, a low-voltage signal connector and a positive and negative busbar connector. Specifically, the cover plate (not shown in the figure) can be sealingly arranged above the main shell 1, the main shell 1 is divided into a left main cavity 11 and a right main cavity 12, a main retaining wall 13 can be arranged between the left main cavity 11 and the right main cavity 12, and the left main cavity 11 is used for arranging the OBC module and the DC-DC module, and the right main cavity 12 is used for arranging the MCU module; the OBC module input connector 14 and the DC-DC module output connector 15 are arranged in sequence on the front face of the main shell 1 close to one side of the left main cavity 11, and the low-voltage signal connector 16 and the positive and negative busbar connector 17 are arranged in sequence on the front face of the main shell 1 close to one side of the right main cavity 12.

[0049] The integrated shell structure is designed in an integrated manner, the cover plate and the main shell are directly sealed, the sealing effect is good, meanwhile, the shell is divided into two main cavities, the OBC module and the DC-DC module are arranged, the main baffle is arranged to realize electrical isolation, meanwhile, the OBC module input connector, the DC-DC module output connector, the low-voltage signal connector and the positive and negative bus connectors are arranged on the front surface of the main shell, the arrangement of the connectors is simple, the cost is reduced, and the occupied space is reduced.

[0050] As shown in Figure 2 , it is a structure schematic view of a left main cavity of an OCDC and controller integrated shell structure according to an embodiment of the utility model. In Figure 1 and Figure 2 , in order to realize electromagnetic shielding, ensure the neat arrangement of the connectors and improve the space utilization, in an embodiment of the utility model, the left main cavity 11 can include an OBC input wiring chamber 111, a DC input chamber 112 and an OBC output wiring chamber 118; the OBC input wiring chamber 111 is arranged at the lower left of the left main cavity 11 and is used for arranging the OBC module input connector 14; the DC input chamber 112 is arranged at the lower front of the left main cavity 11 and is used for arranging the DC-DC module output connector 15; the OBC output wiring chamber 118 is arranged at the lower right of the left main cavity 11 and is used for arranging the output connector of the DC-DC module, the connectors are arranged nearby, and the neat arrangement is ensured.

[0051] In Figure 1 and Figure 2 , in order to realize electromagnetic shielding, ensure the normal use of the functional chamber and improve the space utilization, in an embodiment of the utility model, the left main cavity 11 includes a low-voltage auxiliary source shielding chamber 113, an AC filter plate chamber 114 and an HV filter plate chamber 115; the low-voltage auxiliary source shielding chamber 113 is arranged at the middle of the left main cavity 11 close to the DC input chamber 112; the AC filter plate chamber 114 is arranged at the left of the left main cavity 11 close to the OBC input wiring chamber 111; the HV filter plate chamber 115 is arranged at the right of the left main cavity close to the OBC output wiring chamber 118, the functional chambers are arranged reasonably, the devices in the shell are used normally, do not interfere with each other and the stability is improved.

[0052] In Figure 1 , in order to realize electromagnetic shielding and avoid heat conduction and flow, in an embodiment of the utility model, the left main cavity 11 includes an electrolytic capacitor chamber 116, the electrolytic capacitor chamber 116 is arranged at the upper right of the left main cavity 11, is far away from the low-voltage auxiliary source shielding chamber 113, the AC filter plate chamber 114 and the HV filter plate chamber 115 and other functional chambers, and heat dissipation is avoided.

[0053] In Figure 1 and Figure 2 , in order to realize electromagnetic shielding, ensure the normal use of the functional chamber and improve the space utilization, in an embodiment of the utility model, the left main cavity 11 includes a low-voltage auxiliary source shielding chamber 113, an AC filter plate chamber 114 and an HV filter plate chamber 115; the low-voltage auxiliary source shielding chamber 113 is arranged at the middle of the left main cavity 11 close to the DC input chamber 112; the AC filter plate chamber 114 is arranged at the left of the left main cavity 11 close to the OBC input wiring chamber 111; the HV filter plate chamber 115 is arranged at the right of the left main cavity close to the OBC output wiring chamber 118, the functional chambers are arranged reasonably, the devices in the shell are used normally, do not interfere with each other and the stability is improved.In order to achieve electromagnetic shielding and prevent heat conduction and flow, in one embodiment of this utility model, the left main cavity includes a magnetic element chamber, which can be set in the middle of the left main cavity, and the magnetic element chamber is surrounded by water channel baffles to absorb heat and prevent heat dissipation.

[0054] exist Figure 1 and Figure 2 In order to improve heat dissipation and achieve precise heat dissipation, in one embodiment of this utility model, the integrated shell structure also includes a water channel (not shown in the figure). The water channel passes sequentially through the left side baffle of the left main cavity 11, the bottom of the upper left of the left main cavity 11, the water channel baffle 1171, the bottom of the upper right of the left main cavity 11, and the bottom of the right main cavity 12. It then passes sequentially through the magnetic component chamber 117, the electrolytic capacitor chamber 116, and the MCU module to achieve precise cooling, improve the service life of the components in the chamber, and ensure the stability of the system.

[0055] exist Figure 1 In order to facilitate the determination of the water inlet and outlet flow direction in the waterway, in one embodiment of this utility model, the integrated shell structure includes an inlet 18 and an outlet 19; the inlet 18 is located on the left side baffle wall of the left main cavity 11 and connected to one end of the waterway; the outlet 19 is located on the right side baffle wall of the right main cavity 12 and connected to the other end of the waterway. The reasonable arrangement of the inlet 18 and outlet 19 makes the overall shell structure simple.

[0056] exist Figure 1 In order to facilitate the connection with an external air conditioner and to ensure a neat arrangement of the connectors, in one embodiment of this utility model, the integrated housing structure also includes an EKK / PTC connector 10. The EKK / PTC connector 10 can be connected to the external air conditioner and is located on the front of the main housing 1 between the DC-DC module output connector 15 and the low-voltage signal connector 16.

[0057] In order to achieve air pressure balance in the sealed integrated shell structure, ensure the stability and safety of the system, and prevent external dust from entering, in one embodiment of this utility model, a vent valve (not shown in the figure) can be provided on the cover plate to ensure sealing performance and improve the reliability of the system.

[0058] In another aspect, this utility model provides a power supply system, which includes an integrated housing structure as described in any of the preceding claims, an OBC module, a DC-DC module, and an MCU module. The OBC module is disposed in the main left cavity of the integrated housing structure, the DC-DC module is disposed in the main left cavity of the integrated housing structure, and the MCU module is disposed in the main right cavity of the integrated housing structure and is electrically connected to the OBC module and the DC-DC module.

[0059] Through the above technical solution, the integrated housing structure is a one-piece design, with the cover plate and main housing directly sealed, resulting in good sealing performance. The main housing is divided into left and right main cavities, housing the OBC module and DC-DC module. A main baffle wall is installed to achieve electrical isolation. The OBC module input connector, DC-DC module output connector, low-voltage signal connector, and positive and negative busbar connectors are rationally placed on the front of the main housing, ensuring simple placement, reducing costs, and minimizing space occupation. Meanwhile, the left main cavity has multiple functional chambers rationally arranged to improve space utilization, and baffle walls are installed between these chambers to provide EMC shielding. Water channels are arranged along the magnetic component chamber and the right main cavity to ensure heat dissipation. A vent valve is installed on the cover plate to ensure air pressure balance within the housing, achieving reliability and stability.

[0060] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention. It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe the various possible combinations.

[0061] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An integrated housing structure for OCDC and controller, characterized in that, The integrated shell structure includes: The main housing is divided into a left main cavity and a right main cavity. A main baffle is provided between the left main cavity and the right main cavity. The left main cavity is used to house the OBC module and the DC-DC module, and the right main cavity is used to house the MCU module. The OBC module input connector and the DC-DC module output connector are arranged sequentially on the front of the main housing on the side closest to the left main cavity. Low-voltage signal connectors and positive and negative busbar connectors are arranged sequentially on the front of the main housing, near the right main cavity. A cover plate is provided on top of the main housing for sealing purposes.

2. The integrated shell structure according to claim 1, characterized in that, The left main cavity includes: The OBC input wiring chamber is located at the lower left of the left main cavity and is used to house the OBC module input connector; The DC input chamber is located directly below the left main chamber and is used to house the DC-DC module output connector. The OBC output wiring chamber is located at the lower right of the left main cavity and is used to house the output connector of the DC-DC module.

3. The integrated shell structure according to claim 2, characterized in that, The left main cavity also includes: A low-voltage auxiliary power source shielding chamber is located in the middle of the left main cavity, near the DC input chamber; The AC filter board chamber is located on the left side of the left main chamber, close to the OBC input wiring chamber; The HV filter board chamber is located to the right of the left main chamber, near the OBC output wiring chamber.

4. The integrated shell structure according to claim 3, characterized in that, The left main cavity also includes: The electrolytic capacitor chamber is located at the upper right of the left main cavity.

5. The integrated shell structure according to claim 3, characterized in that, The left main cavity also includes: A magnetic element chamber is located in the middle of the left main cavity, and a water channel baffle is provided around the magnetic element chamber.

6. The integrated shell structure according to claim 5, characterized in that, The integrated shell structure also includes a water channel, which passes sequentially through the left side baffle of the left main cavity, the bottom of the upper left of the left main cavity, the water channel baffle, the bottom of the upper right of the left main cavity, and the bottom of the right main cavity.

7. The integrated shell structure according to claim 6, characterized in that, The integrated shell structure also includes: The water inlet is located on the left side baffle wall of the left main cavity and is connected to one end of the waterway. The water outlet is located on the right side baffle wall of the right main cavity and is connected to the other end of the waterway.

8. The integrated shell structure according to claim 1, characterized in that, The integrated shell structure also includes: The EKK / PTC connector is located on the front of the main housing between the DC-DC module output connector and the low-voltage signal connector.

9. The integrated shell structure according to claim 1, characterized in that, A vent valve is provided on the cover plate.

10. A power supply system, characterized in that, The power supply system includes: The integral shell structure as described in any one of claims 1-9; The OBC module is located in the main left cavity of the integrated housing structure; The DC-DC module is located in the main left cavity of the integrated housing structure; The MCU module is located in the main right cavity of the integrated housing structure and is electrically connected to the OBC module and the DC-DC module.

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