Battery box body and battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a battery box body and a battery pack, the battery box body comprises a battery box and a battery module, the top of the battery box is fixedly provided with a sealing plate, and the bottom surface of the sealing plate is integrally formed with a separation strip; according to the utility model, a plurality of groups of battery modules are separated at equal intervals through the cross-shaped partition plates and the partition plates in the battery box, and the corresponding fastening bolts on the outer sides of the partition plates can drive the corresponding propping plates to tightly prop against the battery modules inserted into the partition plates, so that the battery modules can be tightly connected with the partition plates; therefore, the connecting line structure between the battery modules can be normally used; the bottoms of the battery modules in the battery box are separated through the separation plates, and the sealing plate at the top of the battery box can tightly fill the gaps between the adjacent battery modules through the bottom separation strips, so that the multiple groups of battery modules can be separated independently, and chain damage caused by collision of one group of battery modules is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery box and a battery pack. Background Art

[0002] As battery products continue to develop in the direction of high nickel and large capacity, large-capacity batteries are used in combination by installing multiple battery modules in a battery box.

[0003] For example, the Chinese patent publication number is CN220042111U, the battery box includes a box body, a buffer support and a filler, the box body is provided with an exhaust chamber, the buffer support is arranged in the exhaust chamber, the buffer support has a receiving inner cavity, and the filler is arranged in the receiving inner cavity;

[0004] In the prior art, the buffer support is used to release the filler in the case of rupture to cool down the smoke in the exhaust chamber or extinguish the fire. It can be seen that by releasing the filler in the case of rupture of the buffer support, the exhaust gas of the battery pack can be cooled and the effect of suppressing the open flame can be achieved;

[0005] However, when multiple battery modules in an existing battery box are assembled with the box, they are of different sizes, so there are different gaps between the battery modules and the inside of the battery box. When used during movement, the connecting wires are prone to shaking and falling off, and there are gaps between adjacent battery modules. After being hit from the outside, chain damage is prone to occur. Utility Model Content

[0006] The utility model aims to provide a battery box and a battery pack, which can ensure that the connection between the battery module and the battery box is sufficiently tight, and that multiple groups of battery modules are separated at equal intervals to avoid chain damage after a collision.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery box, comprising a battery box and a battery module, a sealing plate is fixedly installed on the top of the battery box, a partition strip is integrally formed on the bottom surface of the sealing plate, the battery module is arranged inside the battery box, a cross partition is fixedly provided in the middle of the inner cavity of the battery box, partition plates are fixedly installed at equal intervals in the inner cavity of the battery box, the battery module is inserted into the inner wall of the partition plate, fastening bolts are installed at equal intervals on the outside of the battery box, and a resistance plate is movably installed in the inner wall of the partition plate.

[0008] Preferably, the separator bars are respectively inserted into the gaps between adjacent battery modules.

[0009] Preferably, adjustment holes matching the fastening bolts are formed at equal intervals through the outside of the battery box, and the fastening bolts are installed inside the adjustment holes through threads.

[0010] Preferably, a guide groove is provided at one end of the top opening of the inner wall of the partition plate.

[0011] Preferably, a guide block is connected through the top of the abutment plate, and the guide block at the top of the abutment plate slides inside the guide groove.

[0012] Preferably, a plurality of groups of the battery modules are correspondingly snapped into the inner wall of the partition plate.

[0013] The utility model also provides a battery pack, comprising an external shell and the battery box body mentioned above, wherein heat dissipation grooves are formed through the outside of the external shell at equal intervals.

[0014] Preferably, the battery box is slidably engaged inside the external shell.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model separates multiple groups of battery modules at equal intervals through a cross partition and a partition plate inside the battery box, and the corresponding fastening bolts on the outer side of the partition plate can drive the corresponding contact plate to tighten the battery module plugged in the partition plate, so that the battery module can be closely connected with the partition plate, so that the connection line structure between the battery modules can be used normally;

[0017] The bottom of the battery module in the battery box of the utility model is separated by a partition plate, and the sealing plate on the top of the battery box can tightly fill the gap between adjacent battery modules through the bottom partition strip, thereby ensuring that multiple groups of battery modules can be separated separately and avoiding chain damage after a collision between one group of battery modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the split structure of the battery box and the top cover in the utility model;

[0020] Figure 3 This is a schematic diagram of the battery box structure in the utility model;

[0021] Figure 4 This is a schematic diagram of the top view of the battery box structure in the utility model;

[0022] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] In the figure: 1. External shell; 2. Battery box; 3. Battery module; 4. Cross partition; 5. Partition plate; 6. Fastening bolts; 7. Contact plate; 11. Heat dissipation groove; 21. Sealing plate; 22. Partition bar; 51. Guide groove; 61. Adjustment hole; 71. Guide block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] See also Figure 1-5 The utility model provides a technical solution: a battery box, including a battery box 2, a battery module 3, a sealing plate 21 is fixedly installed on the top of the battery box 2, a partition strip 22 is integrally formed on the bottom surface of the sealing plate 21, and the battery module 3 is arranged inside the battery box 2;

[0026] A cross partition 4 is fixedly provided in the middle of the inner cavity of the battery box 2, a partition plate 5 is fixedly installed at an equal interval in the inner cavity of the battery box 2, the battery module 3 is inserted into the inner wall of the partition plate 5, and fastening bolts 6 are installed at equal intervals on the outside of the battery box 2. A contact plate 7 is movably installed in the inner wall of the partition plate 5, and the contact plate 7 is connected to the corresponding end of the fastening bolt 6 by rotation, so that the contact plate 7 can be driven to slide inside the partition plate 5 by the fastening bolt 6, thereby tightening the battery module 3 inserted inside;

[0027] The battery box 2 is internally divided into multiple groups of battery modules 3 at equal intervals by a cross partition 4 and a partition plate 5, and the corresponding fastening bolts 6 on the outside of the partition plate 5 can drive the corresponding abutment plate 7 to tighten the battery module 3 inserted in the partition plate 5, so that the battery module 3 can be closely connected with the partition plate 5, so that the connection line structure between the battery modules 3 can be used normally;

[0028] The bottom of the battery modules 3 in the battery box 2 is separated by a partition plate 5, and the top sealing plate 21 of the battery box 2 can tightly fill the gaps between adjacent battery modules 3 through the bottom partition strip 22, thereby ensuring that multiple groups of battery modules 3 can be separated individually to avoid chain damage after a group of battery modules 3 collides.

[0029] The separator bars 22 are respectively inserted into the gaps between adjacent battery modules 3, and the top sealing plate 21 of the battery box 2 can tightly fill the gaps between adjacent battery modules 3 through the bottom separator bars 22, thereby ensuring that multiple groups of battery modules 3 can be separated individually.

[0030] Among them, adjustment holes 61 matching the fastening bolts 6 are opened at equal intervals on the outside of the battery box 2, and the fastening bolts 6 are installed in the inside of the adjustment holes 61 through threads. A guide groove 51 is opened at one end of the top opening of the inner wall of the partition plate 5, and a guide block 71 is connected to the top of the contact plate 7. The guide block 71 at the top of the contact plate 7 slides in the inside of the guide groove 51. Multiple groups of battery modules 3 are correspondingly clamped in the inner wall of the partition plate 5. The fastening bolts 6 corresponding to the outside of the partition plate 5 can transmit the corresponding contact plate 7. Under the cooperation of the guide block 71 and the guide groove 51, the contact plate 7 can slide along the guide groove 51, so as to tighten the battery module 3 inserted in the partition plate 5.

[0031] The utility model also provides a battery pack, including an external shell 1 and the above-mentioned battery box, the external shell 1 is provided with heat dissipation grooves 11 at equal intervals, the battery box 2 is slidably engaged in the internal part of the external shell 1, the battery box 2 is engaged on the external shell 1, and the heat dissipation grooves 11 opened on the external shell 1 can transfer the heat generated by the battery module 3 inside the battery box 2, so that the battery module 3 can dissipate heat well.

[0032] Working principle: When assembling the battery module 3, firstly plug the battery module 3 into the corresponding partition plate 5 by corresponding insertion;

[0033] Then, the corresponding fastening bolts 6 on the outside can be used to drive the corresponding contact plates 7, so as to tighten the battery modules 3 inserted in the partition plate 5, so that the battery modules 3 can be closely connected with the partition plate 5, so that the connection line structure between the battery modules 3 can be used normally;

[0034] Finally, the top sealing plate 21 of the battery box 2 is used to tightly fill the gaps between adjacent battery modules 3 through the bottom partition strip 22, thereby ensuring that multiple groups of battery modules 3 can be separated individually to avoid chain damage after a group of battery modules 3 collides.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery box, comprising a battery box (2) and a battery module (3), characterized in that: A sealing plate (21) is fixedly mounted on the top of the battery box (2), and a partition strip (22) is integrally formed on the bottom surface of the sealing plate (21); the battery module (3) is arranged inside the battery box (2); a cross partition plate (4) is fixedly mounted in the middle of the inner cavity of the battery box (2); partition plates (5) are fixedly mounted at equal intervals in the inner cavity of the battery box (2); the battery module (3) is inserted into the inner wall of the partition plate (5); fastening bolts (6) are installed at equal intervals on the outside of the battery box (2), and a resistance plate (7) is movably mounted in the inner wall of the partition plate (5).

2. The battery box according to claim 1, characterized in that: The separation bars (22) are respectively inserted into the gaps between adjacent battery modules (3).

3. The battery box according to claim 2, characterized in that: Adjustment holes (61) matching the fastening bolts (6) are formed at equal intervals through the outside of the battery box (2), and the fastening bolts (6) are installed inside the adjustment holes (61) via threads.

4. The battery case according to claim 3, characterized in that: A guide groove (51) is formed at one end of the top opening of the inner wall of the partition plate (5).

5. The battery case according to claim 4, characterized in that: A guide block (71) is connected through the top end of the abutment plate (7), and the guide block (71) at the top end of the abutment plate (7) slides inside the guide groove (51).

6. The battery case according to claim 5, characterized in that: A plurality of groups of battery modules (3) are correspondingly snapped into the inner wall of the partition plate (5).

7. A battery pack, characterized in that: It comprises an external shell (1) and a battery box according to any one of claims 1 to 6, wherein heat dissipation grooves (11) are formed through the outside of the external shell (1) at equal intervals.

8. A battery pack according to claim 7, characterized in that: The battery box (2) is slidably engaged inside the external shell (1).

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