PEU comprehensive shell and new energy vehicle

Abstract

The utility model discloses a PEU comprehensive shell and a new energy vehicle. The PEU comprehensive shell comprises a shell body which is of a box-shaped structure and is provided with an opening facing one side and a frame forming the opening; the capacitor shell part is arranged at the bottom of the box-shaped structure of the shell body and is used for accommodating a capacitor, the capacitor shell part is of a groove-shaped structure, and a bulge is formed in the direction opposite to the opening; the low-voltage connector shell part is arranged on the shell body and is used for connecting or accommodating a low-voltage connector; and the high-voltage connector shell part is arranged on the shell body and is used for connecting or accommodating a high-voltage connector. According to the utility model, the shell of the capacitor, the shell of the high-voltage connector, the shell of the low-voltage connector and the shell body of the PEU are combined and integrated into a whole to form a new comprehensive shell, so that the procedures and fasteners for installing parts such as the capacitor, the high-voltage connector, the low-voltage connector and the like on the shell are reduced; therefore, the weight of the PEU assembly is reduced, and the power density of the PEU is improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, specifically to a PEU integrated housing and a new energy vehicle. Background Technology

[0002] PEU, or Power Electronics Integrated Module, is a crucial component in new energy vehicles. The PEU integrates multiple functions, including the vehicle control unit (MCU), DC-DC converter, on-board charger (OBC), high-voltage distribution box, and on-board heater (PTC), forming a highly efficient power integrated unit. The PEU not only regulates the operation of the new energy vehicle but also monitors the energy distribution of the battery pack to ensure the safety and stability of the battery system. To ensure its performance and durability, the PEU must undergo aging tests in diverse operating environments, placing higher demands on its casing.

[0003] Currently, most PEUs integrate their internal components by connecting them together with bolts, but each component has a housing, and the installation process involves multiple steps and a large number of different types of mounting bolts and other fasteners. This further increases the overall weight of the PEU and reduces its power density. Utility Model Content

[0004] This utility model provides a PEU integrated housing and a new energy vehicle to solve at least one of the technical problems of existing housings, such as complex structure, multiple installation steps, numerous fasteners, large overall weight, and low power density.

[0005] According to one aspect of an embodiment of the present invention, a PEU integrated housing is provided, comprising:

[0006] The shell body is a box-shaped structure with an opening facing one side and a border forming the opening;

[0007] A capacitor housing portion is disposed at the bottom of the box-shaped structure of the housing body and is used to accommodate the capacitor. The capacitor housing portion has a groove-shaped structure and a protrusion formed in the direction opposite to the opening.

[0008] A low-voltage connector housing portion is disposed on the housing body for connecting or accommodating low-voltage connectors;

[0009] A high-voltage connector housing is disposed on the housing body and is used to connect to or accommodate high-voltage connectors.

[0010] In some embodiments, the PEU integrated housing is a one-piece die-cast part.

[0011] In some embodiments, the low-voltage connector housing portion and / or the high-voltage connector housing portion includes through holes or stepped holes, and are located on the edge of the housing body near the frame.

[0012] In some embodiments, the low-voltage connector housing includes a through hole, the low-voltage connector being a control signal connector disposed within the through hole, and the low-voltage connector having signal line ports on its side facing and away from the opening, respectively.

[0013] In some embodiments, the box-shaped structure of the housing body is further provided with a PCB board mounting position, wherein the PCB board is electrically connected to the low-voltage connector and the capacitor.

[0014] In some embodiments, the high-voltage connector housing includes a stepped hole, and a copper busbar through-hole is provided at the bottom of the stepped hole. The high-voltage connector includes a copper busbar, one end of which is connected to a capacitor, and the other end of which passes through the copper busbar through-hole and is connected to a battery.

[0015] In some embodiments, the capacitor is a DC bus capacitor, and the capacitor is encapsulated within a recessed structure in the capacitor housing; and / or,

[0016] A copper busbar connection is provided between the capacitor housing and the high-voltage connector housing.

[0017] In some embodiments, the shell body is further provided with at least one of the following structures: a connecting post, a cooling pipe through-hole, a support, a positioning part, or a reinforcing part.

[0018] In some embodiments, the frame is provided with connection holes for screws or bolts to be inserted to connect the shell body to the new energy vehicle.

[0019] According to another aspect of the present invention, a new energy vehicle is provided, the new energy vehicle including a PEU integrated housing according to any one of the above embodiments.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The PEU integrated housing proposed in this embodiment combines the housing of the capacitor, the housing of the high and low voltage connectors, and the housing of the PEU, so that the housing of the above components and the die-cast housing are integrated into one, forming a new integrated housing. This reduces the number of steps and fasteners required to install the capacitor, high and low voltage connectors, and other parts on the housing, thereby reducing the weight of the PEU and increasing the power density of the PEU assembly. Attached Figure Description

[0022] Figure 1This is a top view structural schematic diagram of the PEU integrated housing provided in some embodiments of this utility model;

[0023] Figure 2 This is a bottom view structural schematic diagram of the PEU integrated housing provided in some embodiments of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the PEU integrated housing assembly provided in some embodiments of this utility model.

[0025] Attached image annotations:

[0026] 1. Shell body; 101. Frame; 102. Connecting hole; 2. Capacitor shell part; 21. Protrusion; 3. Low-voltage connector shell part; 31. Through hole; 32. Support frame; 4. High-voltage connector shell part; 41. Stepped hole; 42. Copper busbar through-hole; 43. Support frame; 5. Capacitor; 6. Low-voltage connector; 7. High-voltage connector; 8. Copper busbar connection part; 9. Connecting post; 10. Cooling pipe through-hole; 11. Support part; 12. Positioning part; 13. Reinforcing part. Detailed Implementation

[0027] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] In the description of this utility model, the reference to terms such as "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.

[0031] See Figure 1-3As shown, one embodiment of this utility model discloses a PEU integrated housing, comprising:

[0032] Shell body 1, the shell body is a box-shaped structure, having an opening facing one side and a frame 101 forming the opening;

[0033] The capacitor housing part 2 is disposed at the bottom of the box-shaped structure of the housing body and is used to accommodate the capacitor. The capacitor housing part has a groove-shaped structure and a protrusion 21 is formed in the direction opposite to the opening.

[0034] The low-voltage connector housing 3 is disposed on the housing body 1 and is used to connect or accommodate the low-voltage connector 6;

[0035] The high-voltage connector housing part 4 is disposed on the housing body 1 and is used to connect or accommodate the high-voltage connector 7.

[0036] This utility model embodiment combines the capacitor housing, the high and low voltage connector housings, and the PEU (assembly) housing body, integrating the housings of the aforementioned components with the housing body to form a new integrated housing. This reduces the number of steps and fasteners required for installing components such as capacitors and high and low voltage connectors onto the housing, thereby reducing the weight of the PEU and increasing its power density.

[0037] In some embodiments, the PEU integrated housing is a one-piece die-cast part. Die casting is a metal casting process characterized by applying high pressure to molten metal within a mold cavity. The mold is typically made of a high-strength alloy, and the manufacturing process is somewhat similar to injection molding. Furthermore, depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine is required. Optionally, in this embodiment, the die-cast part is preferably made of aluminum alloy.

[0038] In some embodiments, the low-voltage connector housing 3 and the high-voltage connector housing 4 include a through hole 31 or a stepped hole 41, which is used to accommodate low-voltage or high-voltage connectors. A support part 11 or a positioning part 12 may be provided in or near the hole. Furthermore, the housing 3 or 4 and its hole may be located on the edge of the housing body 1 near the frame 101, thereby facilitating wiring without affecting the layout of other components.

[0039] In some specific embodiments, see Figure 1 and Figure 3 As shown, the low-voltage connector housing 3 includes a through hole 31, and a support frame 32 is formed around the through hole for accommodating and fixing the low-voltage connector 6. Further, see... Figure 1As shown, the support frame 32 is also provided with a positioning part 12 for limiting the low-voltage connector 6. The positioning part 12 is a groove or a protrusion structure, which can snap the low-voltage connector 6 into the support frame 32.

[0040] Optionally, the low-voltage connector 6 is a control signal connector, disposed within the through hole 31; the low-voltage connector 6 has signal line ports on its side facing and away from the opening, respectively. Specifically, the signal line ports include male and female terminals of connectors such as PIN pins.

[0041] In some embodiments, the box-shaped structure of the housing body is further provided with a PCB board mounting position, which is located near the opening.

[0042] The PCB board is electrically connected to the low-voltage connector 6 and the capacitor 5.

[0043] In some embodiments, combined with Figure 1 and Figure 2 As shown, the high-voltage connector housing 4 includes a stepped hole 41, and a copper busbar through-hole 42 is provided at the bottom of the stepped hole 41. Optionally, there are two copper busbar through-holes 42, which are respectively for the positive and negative copper busbars to pass through.

[0044] A ring-shaped support frame 43 can also be provided at the stepped hole to support and protect the high-voltage connector 7.

[0045] Furthermore, the high-voltage connector 7 includes a copper busbar, one end of which is connected to the capacitor 5, and the other end of which passes through the copper busbar through-hole 42 and is connected to the battery.

[0046] In some optional embodiments, the capacitor 5 is a DC bus capacitor, and the capacitor 5 is encapsulated in the groove-shaped structure of the capacitor housing portion 2.

[0047] Combination Figure 1 and Figure 2 As shown, a copper busbar connection part 8 is provided between the capacitor housing part 2 and the high-voltage connector housing part 4. The copper busbar connection part 8 is also a groove structure, forming a through groove with the capacitor housing part 2 and the high-voltage connector housing part 4 to accommodate the capacitor 5 and the copper busbar.

[0048] In some embodiments, the shell body 1 is further provided with at least one of the following structures: a connecting post 9, a cooling pipe through-hole 10, a support part 11, a positioning part 12, or a reinforcing part 13.

[0049] Specifically, there are multiple connecting posts 9, which are located at the bottom of the box-shaped structure of the shell body 1. They are cylindrical in shape and have threaded holes at the top for fixing the PCB board with screws.

[0050] The cooling pipe through-hole 10 includes two holes, which can be circular holes, respectively located on the two sides of the bottom of the box-shaped structure of the shell body 1, so that the cooling pipe can pass through and cool the interior of the PEU. After the cooling pipe passes through, a seal is set at the cooling pipe through-hole 10 to prevent dust from entering the interior of the PEU.

[0051] The support part 11 is disposed inside the copper busbar connecting part 8 and is used to fix and limit the copper busbar.

[0052] The positioning part 12 can be disposed in the through hole 31 of the low-voltage connector housing part 3, and is used to limit and fix the low-voltage connector 6 by means of snap-fit ​​or other means when the low-voltage connector 6 is fixed in the through hole 31.

[0053] The reinforcing part 13 is a reinforcing rib, which is used to strengthen the strength of the shell body 1. The specific shape can be a racetrack shape, but there is no specific limitation here.

[0054] In some embodiments, a connecting hole 102 is provided on the frame 101, the connecting hole 102 being used to pass through screws or bolts to connect the housing body 1 to the new energy vehicle. For example, the PEU can be connected to the motor housing through the frame 101, the connecting hole 102, and the screws to fix the PEU.

[0055] According to another aspect of the present invention, a new energy vehicle is provided, the new energy vehicle including a PEU integrated housing according to any one of the above embodiments.

[0056] Optionally, the PEU housing can be connected to the motor housing to facilitate the fixing of the PEU and the control of the motor by the PEU.

[0057] In summary, the PEU integrated housing disclosed in the above embodiments of this utility model can achieve the following technical effects:

[0058] The PEU integrated housing proposed in this embodiment aims to combine the housings of internal PEU components such as capacitors, high-voltage connectors, and low-voltage connectors with the PEU assembly housing, thereby reducing the number of installation steps and fasteners between components and the housing. Ultimately, this reduces the weight of the PEU assembly and increases its power density.

[0059] Specifically, by combining the housing of the capacitor, the housing of the high-voltage connector, the housing of the low-voltage connector, and the housing of the PEU assembly, the housing of the above-mentioned components is integrated with the PEU housing body to form a new integrated housing, thereby reducing the number of steps and fasteners required to install components such as capacitors, high-voltage connectors, and low-voltage connectors onto the housing.

[0060] It should be noted that although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims of the present invention.

Claims

1. A PEU integrated housing, characterized in that, The PEU integrated housing includes: The shell body is a box-shaped structure with an opening facing one side and a border forming the opening; A capacitor housing portion is disposed at the bottom of the box-shaped structure of the housing body and is used to accommodate the capacitor. The capacitor housing portion has a groove-shaped structure and a protrusion formed in the direction opposite to the opening. A low-voltage connector housing portion is disposed on the housing body for connecting or accommodating low-voltage connectors; A high-voltage connector housing is disposed on the housing body and is used to connect to or accommodate high-voltage connectors.

2. The PEU integrated housing according to claim 1, characterized in that, The PEU integrated shell is a one-piece die-cast part.

3. The PEU integrated housing according to claim 1, characterized in that, The low-voltage connector housing portion and / or the high-voltage connector housing portion include through holes or stepped holes, and are located on the edge of the housing body near the frame.

4. The PEU integrated housing according to claim 3, characterized in that, The low-voltage connector housing includes a through hole, and the low-voltage connector is a control signal connector disposed in the through hole. The low-voltage connector has signal line ports on the side facing the opening and the side away from the opening, respectively.

5. The PEU integrated housing according to claim 4, characterized in that, The box-shaped structure of the shell body also has a PCB board mounting position, wherein the PCB board is electrically connected to the low-voltage connector and the capacitor.

6. The PEU integrated housing according to claim 3, characterized in that, The high-voltage connector housing includes a stepped hole, and a copper busbar through-hole is provided at the bottom of the stepped hole. The high-voltage connector includes a copper busbar, one end of which is connected to a capacitor, and the other end of which passes through the copper busbar through-hole and is connected to a battery.

7. The PEU integrated housing according to claim 1, characterized in that, The capacitor is a DC bus capacitor, and the capacitor is encapsulated within a recessed structure in the capacitor housing; and / or... A copper busbar connection is provided between the capacitor housing and the high-voltage connector housing.

8. The PEU integrated housing according to claim 1, characterized in that, The shell body is also provided with at least one of the following structures: a connecting column, a cooling pipe through-hole, a support part, a positioning part, or a reinforcing part.

9. The PEU integrated housing according to any one of claims 1-8, characterized in that, The frame is provided with connection holes, which are used to insert screws or bolts to connect the shell body to the new energy vehicle.

10. A new energy vehicle, characterized in that, The new energy vehicle includes a PEU integrated housing according to any one of claims 1-9.

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