Upper cover of battery pack

Abstract

The utility model relates to the technical field of energy storage containers, in particular to a battery pack upper cover which comprises a cover body, the cover body is of a groove-shaped structure with a downward opening, a rear end module access hole is formed in the top of the cover body, and a cover plate is detachably arranged on the rear end module access hole. A BMS module mounting hole is formed in the front end of the cover body; the inner walls of the left side and the right side of the cover body are provided with wiring grooves protruding outwards, and the inner sides of the wiring grooves are used for arranging sampling wire harnesses. The utility model provides an upper cover of a battery pack, which can provide convenience for wiring of sampling wire harnesses from a rear-end module to a BMS (battery management system), can also provide convenience for fault maintenance of a sampling system of the rear-end module, and solves the problems that an existing upper cover of the battery module is inconvenient for arrangement of the sampling wire harnesses, and the sampling wire harnesses cannot be arranged conveniently. And the maintenance work of a rear-end module sampling system is not convenient.

Description

Technical Field

[0001] This utility model relates to the field of energy storage container technology, and in particular to a battery pack cover. Background Technology

[0002] Energy storage containers are devices that integrate components such as batteries, battery management systems, and power conversion systems. They are characterized by high efficiency, flexibility, and convenience, and have wide applications in many fields, including power balancing, grid peak shaving and frequency regulation, new energy power generation systems, industrial power distribution systems, public power systems, and renewable energy hydrogen production.

[0003] Currently, energy storage containers generally use a 1P104S structured battery pack as the core energy storage unit. For example, the utility model disclosed in publication number CN219717016U discloses a battery pack, energy storage cluster, and energy storage container, which involves the aforementioned energy storage container and battery pack structures. The 1P104S structure refers to a battery pack consisting of one parallel unit and 104 series units; this design is common in energy storage systems.

[0004] As described above, the existing battery module's top cover structure is generally a plate-like structure. Therefore, when this type of top cover is fixed to the module tray with bolts, it results in limited space for the sampling harness layout from the rear module to the BMS inside the box, making it inconvenient to route the sampling harness. Moreover, when the rear module's sampling system fails, the entire top cover needs to be removed for repair, which is quite inconvenient. Utility Model Content

[0005] In view of this, the present invention proposes a battery pack cover that facilitates the wiring of the sampling harness from the back-end module to the BMS and also facilitates the troubleshooting of the back-end module sampling system. It solves the problem that the existing battery pack cover is not convenient for the arrangement of the sampling harness and the troubleshooting of the back-end module sampling system.

[0006] The technical solution of this utility model is implemented as follows:

[0007] This utility model provides a battery pack cover, including a cover body, wherein the cover body has a downward-facing groove-shaped structure, wherein...

[0008] The top of the cover is provided with a rear module access port, and a cover plate is detachably provided on the rear module access port;

[0009] The front end of the cover is provided with a BMS module mounting hole;

[0010] The inner walls on both the left and right sides of the cover are provided with outwardly protruding wiring grooves. The wiring grooves extend along the front and rear direction of the cover, and the inner side of the wiring grooves is used to arrange sampling wire bundles.

[0011] Based on the above technical solutions, preferably, the lower end of the inner side of the inspection port of the rear module is provided with an inner edge, wherein,

[0012] The cover plate is fitted with the inner side of the inspection port of the rear module and is fixed to the top of the inner edge by bolts.

[0013] Based on the above technical solutions, preferably, the top surface of the cover plate is aligned with the top surface of the cover body.

[0014] Based on the above technical solutions, preferably, a sealing ring is provided between the inner edge and the cover plate.

[0015] Based on the above technical solutions, preferably, the front end of the wiring trough is located on one side of the BMS module mounting hole, and the rear end is located on one side of the rear module maintenance port.

[0016] Based on the above technical solutions, preferably, the vertical width of the wiring groove is 2-5 times the outer diameter of the sampling wire harness.

[0017] Based on the above technical solution, preferably, a riveting stud is provided on the bottom of the wiring groove, wherein,

[0018] The crimping stud is used to fix the sampling wire harness.

[0019] Based on the above technical solutions, preferably, the riveting stud is provided with a cable tie mounting hole.

[0020] Based on the above technical solutions, preferably, the back-end module inspection port is located in the middle of the cover.

[0021] Based on the above technical solutions, preferably, an outer edge is provided at the lower edge of the cover, wherein,

[0022] Bolt mounting holes are provided on the outer edge;

[0023] The outer end of the outer edge is aligned vertically with the outer end of the wiring groove.

[0024] The battery pack cover of this utility model has the following advantages over the prior art:

[0025] (1) By setting outward recessed wiring grooves on the inner walls of both the front and rear sides of the cover, it is convenient to provide wiring layout space for the sampling wiring harness and facilitate the wiring work of the sampling wiring harness from the back-end module to the BMS.

[0026] (2) By setting up an inspection port and a removable cover plate, it is convenient to inspect the back-end module sampling system through the inspection port without disassembling the entire top cover, which facilitates the inspection and maintenance of the back-end module sampling system. (3) By setting up rivet studs on the bottom of the cable tray, the sampling cable harness is fixed by the rivet studs, making the sampling cable harness less prone to loosening, which helps to improve the stability of the plug connection at both ends of the sampling cable harness. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a perspective view of a battery pack cover according to the present invention;

[0029] Figure 2 This is a perspective view of a battery pack cover according to the present invention.

[0030] Figure 3 This is an exploded view of a battery pack cover according to the present invention;

[0031] Figure 4 This is a side view of the riveted stud.

[0032] Figure 5 This is a schematic diagram showing the usage state of a battery pack cover according to the present invention;

[0033] In the diagram: 1. Cover; 2. Sampling harness; 11. Cover plate; 12. Riveting stud; 101. Rear module inspection port; 102. BMS module mounting hole; 103. Cable tray; 104. Outer edge; 1011. Inner edge; 1201. Cable tie mounting hole. Detailed Implementation

[0034] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] like Figure 1-5 As shown, a battery pack cover of the present invention includes a cover body 1, which has a groove-shaped structure with the opening facing downward.

[0036] The cover 1 has a rear-end module access port 101 on its top, and a cover plate 11 is detachably mounted on the rear-end module access port 101. The rear-end module access port 101 can be opened by removing the cover plate 11, allowing personnel to easily and quickly troubleshoot malfunctions in the rear-end module sampling system. After troubleshooting, the cover plate 11 is reinstalled in the rear-end module access port 101.

[0037] The front end of the cover 1 is provided with a BMS module mounting hole 102, combined with Figure 5 The BMS module mounting hole 102 is used to install the BMS module. Figure 2 In the cover 1, outwardly protruding wiring grooves 103 are provided on the inner walls of both the left and right sides. The wiring grooves 103 extend along the front-rear direction of the cover 1, and the inner side of the wiring grooves 103 is used to arrange the sampling harness 2. The sampling harness 2 refers to the voltage and temperature acquisition harness from the rear module to the BMS. Figure 2 One end of the sampling harness 2 extends to the BMS module mounting hole 102 for connecting to the BMS module, and the other end is used to connect to the back-end module. The wiring channel 103 provides wiring layout space for the sampling harness 2, thereby facilitating the wiring work of the sampling harness 2 from the back-end module to the BMS.

[0038] like Figure 3 As shown, an inner edge 1011 is provided at the lower end of the inner side of the rear module access port 101. The cover plate 11 is fitted into the inner side of the rear module access port 101 with clearance and is fixed to the top of the inner edge 1011 by bolts. Specifically, Figure 3 The rear module access port 101 is rectangular in shape, and its inner edge 1011 is a square ring. The inner edge 1011 forms a recessed platform structure on the inner side of the rear module access port 101 to support the cover plate 11. After the cover plate 11 is inserted into the inner edge 1011, it is fixed to the inner edge 1011 by bolts. For this purpose, the inner edge 1011 is provided with threaded holes, and the cover plate 11 is provided with through holes. Bolts are inserted into the through holes and screwed into the threaded holes to fix the cover plate 11.

[0039] After the cover plate 11 is fixed, the top surface of the cover plate 11 is aligned with the top surface of the cover body 1 to ensure the flatness of the top surface of the cover.

[0040] A ring-shaped sealing ring is provided between the inner edge 1011 and the cover plate 11 to seal the gap between the inner edge 1011 and the cover plate 11, thereby improving the waterproof and dustproof effect.

[0041] like Figure 2-3As shown, the wiring trough 103 has a rectangular trough structure. The front end of the wiring trough 103 is located on one side of the BMS module mounting hole 102, and the rear end is located on one side of the rear module inspection port 101. This allows both ends of the sampling harness 2 to extend smoothly to the BMS module and the rear module.

[0042] The vertical width of the wiring trough 103 is 2-5 times the outer diameter of the sampling wire harness 2, so that the wiring trough 103 can accommodate at least 2 sampling wire harnesses 2, improving the flexibility of wiring.

[0043] At least one crimping stud 12 is provided on the bottom of the cable tray 103. Figure 1 Two crimping studs 12 are shown in the image; these studs 12 are used to fix the sampling harness 2. Combined with... Figure 4 The stud 12 is provided with a cable tie mounting hole 1201, which is used to install cable ties. The sampling harness 2 is fixed to the stud 12 by the cable tie, thereby realizing the fixed installation of the sampling harness 2 in the cable tray 103.

[0044] like Figure 1 As shown, an outer edge 104 is provided at the lower edge of the cover 1, and bolt mounting holes are provided on the outer edge 104. Figure 5 The cover 1 is used to fasten to the top of the battery module, and the two are fixedly connected by bolts. Furthermore, one end of the cover 1 with a BMS module mounting hole 102 is the front end, where a front-end module is installed, and the rear end is where a rear-end module is installed. In conjunction with... Figure 1 The rear module inspection port 101 is located in the middle of the cover 1, above the wiring terminal of the rear module.

[0045] In addition, due to the structure of the wiring groove 103, after the wiring groove 103 protrudes outward, a boss structure is formed on the side of the cover 1. In order to prevent the boss from interfering with the subsequent assembly of the battery module, the outer end of the outer edge 104 needs to be aligned vertically with the outer end of the wiring groove 103, that is, the side end of the boss is aligned vertically with the side end of the outer edge 104.

[0046] The method of using the battery pack cover of this utility model is as follows:

[0047] The middle part of sampling harness 2 runs along the front and back of wiring groove 103, combined with Figure 2 The sampling harness 2 has L-shaped ends that extend to the BMS module mounting hole 102 and the rear module inspection port 101, respectively. After routing, cable ties are installed on the rivet studs 12 to fix the sampling harness 2 to the wiring groove 103. In this way, the sampling harness 2 can be routed from the left and right sides of the front module, which facilitates the arrangement of the sampling harness 2.

[0048] After installing the cover on the battery module, connect the port of the sampling harness 2 to the acquisition port of the rear module through the rear module access port 101. Connect the other end of the sampling harness 2 to the acquisition plug of the BMS module through the BMS module mounting hole 102. Then fix the BMS module on the BMS module mounting hole 102. Next, place the sealing ring and the cover plate 11 on the inner edge 1011 in sequence, and fix the cover plate 11 on the inner edge 1011 with bolts to complete the installation of the cover plate 11.

[0049] When the back-end module sampling system fails, the cover plate 11 is removed, and maintenance personnel can repair the corresponding faulty part through the back-end module inspection port 101.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack cover, comprising a cover body (1), characterized in that: The cover (1) has a downward-facing groove-shaped structure, wherein, The top of the cover (1) is provided with a rear module maintenance port (101), and a cover plate (11) is detachably provided on the rear module maintenance port (101). The front end of the cover (1) is provided with a BMS module mounting hole (102); The inner walls on both sides of the cover (1) are provided with outwardly protruding wiring grooves (103). The wiring grooves (103) extend along the front and rear direction of the cover (1), and the inner side of the wiring grooves (103) is used to arrange sampling wire bundles (2).

2. The battery pack cover as described in claim 1, characterized in that: The lower end of the inner side of the inspection port (101) of the rear module is provided with an inner edge (1011), wherein, The cover plate (11) is fitted with the inner side of the rear module inspection port (101) and is fixed to the top of the inner edge (1011) by bolts.

3. A battery pack cover as described in claim 2, characterized in that: The top surface of the cover plate (11) is aligned with the top surface of the cover body (1).

4. A battery pack cover as described in claim 2, characterized in that: A sealing ring is provided between the inner edge (1011) and the cover plate (11).

5. A battery pack cover as described in claim 1, characterized in that: The front end of the wiring trough (103) is located on one side of the BMS module mounting hole (102), and the rear end is located on one side of the rear module inspection port (101).

6. A battery pack cover as described in claim 5, characterized in that: The vertical width of the wiring groove (103) is 2-5 times the outer diameter of the sampling wire bundle (2).

7. A battery pack cover as described in claim 1, characterized in that: A riveting stud (12) is provided on the bottom of the wiring groove (103), wherein, The crimping stud (12) is used to fix the sampling wire harness (2).

8. A battery pack cover as described in claim 7, characterized in that: The rivet stud (12) is provided with a cable tie mounting hole (1201).

9. A battery pack cover as described in claim 1, characterized in that: The rear module inspection port (101) is located in the middle of the cover (1).

10. A battery pack cover as described in claim 1, characterized in that: An outer rim (104) is provided at the lower edge of the cover (1), wherein, Bolt mounting holes are provided on the outer edge (104); The outer end of the outer edge (104) is aligned vertically with the outer end of the wiring groove (103).

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