Battery cell module and high-voltage box assembly separated type assembly box body

Abstract

The utility model relates to the technical field of battery packs, in particular to a battery cell module and high-voltage box assembly separated type assembly box body which comprises a box body with an installation cavity and an upper cover with a first sleeve cavity, a baffle is arranged in the installation cavity and divides the installation cavity into a first installation chamber and a second installation chamber, and the first sleeve cavity is provided with a second sleeve cavity. A high-voltage box assembly bracket mounting position is arranged on the surface, corresponding to the first mounting chamber, of the box body bottom plate, and a battery cell module mounting position is arranged on the surface, corresponding to the second mounting chamber, of the box body bottom plate; a second sleeve cavity protruding outwards is formed in the first sleeve cavity, and the second sleeve cavity corresponds to the first mounting chamber. According to the scheme, mutual interference-free installation of the high-voltage box assembly and the battery cell module can be realized, and the working safety is ensured; in addition, only one upper cover is used for buckling, so that the disassembly is more convenient, and the battery pack is easier to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a separate assembly box for a battery core module and a high-voltage box assembly. Background Art

[0002] At present, new energy vehicles have attracted wide attention from all walks of life due to their excellent environmental performance. The requirements for new energy vehicles are also constantly increasing. As a new energy vehicle, electric vehicles are also developing in the direction of high safety, high energy ratio and light weight. The main factor that determines the mileage of electric vehicles is the power supply battery. Different specifications of power supply batteries can be selected for different models to meet driving requirements.

[0003] The power supply battery for electric vehicles is generally a battery pack composed of multiple battery modules, that is, multiple battery modules are stacked in the same box, and then the battery modules are connected. The core battery module is generally configured with a corresponding number of cells according to the size of the output voltage, and then all the cells are connected and the voltage is output through the high-voltage control box. The high-voltage control box is used to manage the high-voltage power distribution of the whole vehicle, realize the control of each output separately, manage the high-voltage safety, and has over-current, over-voltage, and over-temperature protection functions. At the same time, it has CAN communication function and real-time data exchange. The high-voltage control box is mainly composed of a pre-charge circuit composed of a pre-charge relay, a relay, a pre-charge resistor and a Hall sensor to prevent damage to the vehicle motor. The function of the pre-charge relay is to control the disconnection and closing of the pre-charge circuit; the function of the relay is to control the operation of the large current with a small current, thereby realizing the automatic adjustment, safety protection and conversion of the circuit; the function of the pre-charge resistor is to limit the current; the Hall sensor is used to monitor the current of the battery pack.

[0004] In traditional technology, the high-voltage control box is mostly external, that is, it is set on the outer wall of the battery pack body. It is not only complex in structure and large in size, occupying the external space of the battery pack, but also has messy internal and external wiring, and the functional components are prone to mutual interference when working. In addition, due to the complex structure of the traditional high-voltage control box, it is very troublesome to assemble or disassemble it for maintenance.

[0005] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and to provide a separate assembly box for a battery cell module and a high-voltage box assembly, which is used to solve the technical problems of the traditional technology of using an external high-voltage control box, such as complex structure, large size, occupying the external space of the battery pack, confusing internal and external wiring, easy interference in operation, and reduced battery pack assembly efficiency.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A separate assembly box for a battery cell module and a high-voltage box assembly comprises a box with an installation cavity, and an upper cover with a first set of cavities, wherein a baffle is arranged in the installation cavity to separate the installation cavity into a first installation chamber and a second installation chamber, wherein a high-voltage box assembly bracket installation position is arranged on the surface of the bottom plate of the box corresponding to the first installation chamber, and a battery cell module installation position is arranged on the surface of the bottom plate of the box corresponding to the second installation chamber; a second set of cavities protruding outward is arranged in the first set of cavities, and the second set of cavities corresponds to the first installation chamber.

[0009] Furthermore, the box body includes a first long frame and a second long frame symmetrically arranged, and a first wide frame and a second wide frame are respectively arranged at both ends of the first long frame and the second long frame, and the first wide frame, the first long frame, the second wide frame and the second long frame are interconnected to form a battery pack frame; the bottom side of the upper cover is provided with a box cover edge protruding outward, and the box cover edge is connected to the top of the battery pack frame.

[0010] Furthermore, the edge of the box cover is connected to the top of the battery pack frame by screws.

[0011] Furthermore, the first wide frame includes a first wide frame body parallel to the second wide frame, and a first corner frame and a second corner frame disposed at two ends of the first wide frame body and connected to the first long frame and the second long frame.

[0012] Furthermore, a battery pack MSD mounting position is provided on the first corner frame.

[0013] Furthermore, an explosion-proof valve installation position is provided on the second corner frame.

[0014] Furthermore, an electrical connection plug installation position is provided on the first wide frame body.

[0015] Furthermore, a first limiting plate and a second limiting plate that are symmetrical to each other are respectively arranged on the inner sides of the first long frame and the second long frame, and a mutually symmetrical step groove is formed between the first long frame and the first limiting plate, and between the second long frame and the second limiting plate, and the two ends of the baffle are respectively connected to the step groove.

[0016] Furthermore, the top of the baffle is flush with the battery pack frame.

[0017] Furthermore, mutually symmetrical vehicle connection wing panels are arranged on the outer sides of the first long frame and the second long frame.

[0018] The utility model provides a separate assembly box for a battery module and a high-voltage box assembly. The separate structure can realize the installation of the high-voltage box assembly and the battery module without interference, and the first installation chamber and the second installation chamber are interconnected through the first set of cavities, which is convenient for the wiring and electrical connection of the lines between the two through the first set of cavities, and the high-voltage assembly is electrically connected to the vehicle through the electrical connection plug installation position set on the outer wall of the first installation chamber, and the line layout is smoother, thereby ensuring safety during work. In addition, it is only fastened through an upper cover, which makes disassembly more convenient and easier to maintain the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a separate assembly box for a battery cell module and a high-voltage box assembly according to the utility model;

[0020] Figure 2 This is an exploded view from the first perspective of a separate assembly box of a battery cell module and a high-voltage box assembly according to the utility model;

[0021] Figure 3 It is an exploded view from a second perspective of a separate assembly box of a battery cell module and a high-voltage box assembly according to the utility model;

[0022] Figure 4 It is a cross-sectional view of a separate assembly box of a battery cell module and a high-voltage box assembly according to the utility model;

[0023] Figure 5 It is a top view of a box in a separate assembly box of a battery cell module and a high-voltage box assembly described in the utility model;

[0024] Figure 6 The utility model is a schematic diagram of a battery cell module and a high-voltage box assembly assembled in a separate assembly box of the battery cell module and the high-voltage box assembly.

[0025] Graphic marking:

[0026] 1-box body, 101-installation cavity, 102-first installation chamber, 103-second installation chamber, 104-bottom plate, 105-first long frame, 106-second long frame, 107-first wide frame, 108-second wide frame, 109-battery pack frame, 110-box cover edge, 111-first wide frame body, 112-first corner frame, 113-second corner frame, 114-first limiting plate, 115-second limiting plate, 116-step slide;

[0027] 2-upper cover, 201-first cavity, 202-second cavity;

[0028] 3-Baffle;

[0029] 4-High voltage box assembly bracket installation position;

[0030] 5-Battery cell module installation position;

[0031] 6- High voltage box assembly;

[0032] 7-battery cell module;

[0033] 8-Battery pack MSD installation position;

[0034] 9-Battery pack MSD;

[0035] 10-Battery pack MSD installation position;

[0036] 11- Explosion-proof valve;

[0037] 12-Electrical connection plug installation position;

[0038] 13-Vehicle connection wing. DETAILED DESCRIPTION

[0039] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1 to Figure 5 As shown, the present solution provides a separate assembly box for a battery cell module and a high-voltage box assembly, comprising a box 1 with an installation cavity 101, and an upper cover 2 with a first set of cavities 201, wherein a baffle 3 is arranged in the installation cavity 101 to separate the installation cavity 101 into a first installation chamber 102 and a second installation chamber 103, a surface of a bottom plate 104 of the box 1 corresponding to the first installation chamber 102 is provided with a high-voltage box assembly bracket installation position 4, and a surface of the bottom plate 104 of the box 1 corresponding to the second installation chamber 103 is provided with a battery cell module installation position 5, the high-voltage box assembly bracket installation position 4 is used to install a high-voltage box assembly 6, and the battery cell module installation position 5 is used to install a battery cell module 7; a second set of cavities 202 protruding outward is arranged in the first set of cavities 201, and the second set of cavities 202 corresponds to the first installation chamber 102, so as to meet the longitudinal space for installing the high-voltage box assembly 6.

[0041] In this structure, the first installation chamber 102 and the second installation chamber 103 are interconnected through the first sleeve cavity 201 , so that the wiring and electrical connection between the two can be realized through the first sleeve cavity 201 .

[0042] Among them, Figure 3As shown, the box body 1 includes a first long frame 105 and a second long frame 106 that are symmetrically arranged, and a first wide frame 107 and a second wide frame 108 are respectively arranged at both ends of the first long frame 105 and the second long frame 106. The first wide frame 107, the first long frame 105, the second wide frame 108 and the second long frame 106 are interconnected to form a battery pack frame 109, and together with the bottom plate 104 arranged on the bottom side, form the installation cavity 101; the bottom side of the upper cover 2 is provided with an outwardly protruding box cover edge 110, and the box cover edge 110 is connected to the top of the battery pack frame 109 to achieve sealing of the installation cavity 101.

[0043] The box cover edge 110 is connected to the top of the battery pack frame 109 by screws.

[0044] In this embodiment, mutually symmetrical vehicle connection wing plates 13 are provided on the outer sides of the first long frame 105 and the second long frame 106 for realizing quick fixation of the separate assembly box of the battery cell module 7 and the high-voltage box assembly to the vehicle frame.

[0045] like Figure 3 As shown, in this embodiment, the first wide frame 107 includes a first wide frame body 111 parallel to the second wide frame 108, and a first corner frame 112 and a second corner frame 113 disposed at both ends of the first wide frame body 111 and connected to the first long frame 105 and the second long frame 106. Through this structure, while reducing the overall volume of the box, it can also ensure that a sufficiently large installation space is provided for the first installation room 102.

[0046] The first corner frame 112 is provided with a battery pack MSD installation position 8 for installing a battery pack MSD9, which is a high-voltage connector with a fuse and is used for repairing battery packs and motor controllers of new energy vehicles.

[0047] An explosion-proof valve installation position 10 is provided on the second corner frame 113 for installing an explosion-proof valve 11. When the pressure inside the installation cavity 101 suddenly increases or the temperature rises rapidly, the valve will be automatically triggered, pop open, and dissipate the high-pressure gas to the outside. This design can effectively prevent the battery from exploding due to excessive internal pressure, thereby protecting the safety of the battery and its surrounding equipment.

[0048] The first wide frame body 111 is provided with an electrical connection plug installation position 12 for installing an electrical connection plug to achieve docking of the battery pack with the vehicle system.

[0049] As an optimization of this solution, Figure 3 and Figure 5As shown, a mutually symmetrical first limiting plate 114 and a second limiting plate 115 are respectively arranged on the inner side of the first long frame 105 and the second long frame 106, and the cross-sections of the first long frame 105 and the first limiting plate 114, and the cross-sections of the second long frame 106 and the second limiting plate 115 are all L-shaped; mutually symmetrical step grooves 116 are formed between the first long frame 105 and the first limiting plate 114, and between the second long frame 106 and the second limiting plate 115, and the two ends of the baffle 3 are respectively connected to the step grooves 116. Through this structure, the positions of the baffle 3 and the two step grooves 116 can be moved to adjust the space of the first installation chamber 102 and the second installation chamber 103, so as to better meet the needs of battery cell modules 7 or high-voltage box assemblies 6 of different specifications and provide them with sufficient independent installation space.

[0050] It should be noted that if Figure 2 and 6 As shown, the top of the baffle 3 is flush with the battery pack frame 109. This structure prevents the baffle 3 from partitioning the first cavity 201 in the box cover, thereby affecting the line connection and ventilation between the first installation chamber 102 and the second installation chamber 103.

[0051] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A separate assembly box for a battery cell module and a high-voltage box assembly, characterized in that: The invention comprises a box body (1) with an installation cavity (101), and an upper cover (2) with a first set of cavities (201); a baffle (3) is arranged in the installation cavity (101) to divide the installation cavity (101) into a first installation chamber (102) and a second installation chamber (103); a high-voltage box assembly bracket installation position (4) is arranged on the surface of a bottom plate (104) of the box body (1) corresponding to the first installation chamber (102); and a cell module installation position (5) is arranged on the surface of the bottom plate (104) of the box body (1) corresponding to the second installation chamber (103); and a second set of cavities (202) protruding outwards is arranged in the first set of cavities (201); the second set of cavities (202) corresponds to the first installation chamber (102).

2. The separate assembly box for the battery cell module and the high voltage box assembly according to claim 1, characterized in that: The box body (1) comprises a first long frame (105) and a second long frame (106) which are symmetrically arranged, a first wide frame (107) and a second wide frame (108) are respectively arranged at both ends of the first long frame (105) and the second long frame (106), and the first wide frame (107), the first long frame (105), the second wide frame (108) and the second long frame (106) are connected to each other to form a battery pack frame (109); the bottom side of the upper cover (2) is provided with a box cover edge (110) protruding outwards, and the box cover edge (110) is connected to the top of the battery pack frame (109).

3. The separate assembly box for the battery cell module and the high voltage box assembly according to claim 2, characterized in that: The box cover edge (110) is connected to the top of the battery pack frame (109) via screws.

4. The separate assembly box for the battery cell module and the high voltage box assembly according to claim 2, characterized in that: The first wide frame (107) comprises a first wide frame body (111) parallel to the second wide frame (108), and a first corner frame (112) and a second corner frame (113) arranged at two ends of the first wide frame body (111) and connected to the first long frame (105) and the second long frame (106).

5. The separate assembly box for the battery cell module and the high voltage box assembly according to claim 4, characterized in that: A battery pack MSD mounting position (8) is provided on the first corner frame (112).

6. The separate assembly box for the battery cell module and the high voltage box assembly according to claim 4, characterized in that: An explosion-proof valve installation position (10) is provided on the second corner frame (113).

7. The separate assembly box of the battery cell module and the high voltage box assembly according to claim 4, characterized in that: An electrical connection plug installation position (12) is provided on the first wide frame body (111).

8. The separate assembly box of the battery cell module and the high voltage box assembly according to claim 2, characterized in that: A first limiting plate (114) and a second limiting plate (115) which are symmetrical to each other are respectively arranged on the inner sides of the first long frame (105) and the second long frame (106); a symmetrical stepped slide groove (116) is formed between the first long frame (105) and the first limiting plate (114), and between the second long frame (106) and the second limiting plate (115); and both ends of the baffle plate (3) are respectively connected to the stepped slide groove (116).

9. A separate assembly box for a battery cell module and a high voltage box assembly according to claim 2 or 8, characterized in that: The top of the baffle (3) is flush with the battery pack frame (109).

10. The battery cell module and high voltage box assembly separate assembly box according to claim 3, characterized in that: Mutually symmetrical vehicle connection wing panels (13) are arranged on the outer sides of the first long frame (105) and the second long frame (106).

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