Battery module shell and battery module

Abstract

The utility model provides a battery module shell which comprises a first shell body and a second shell body, the first shell body and the second shell body are matched and combined together in a mode that a first battery placing groove and a second battery placing groove are opposite, and the first battery placing groove and the second battery placing groove are matched and combined in a one-to-one correspondence mode to form a battery placing channel. The first positive pole end placing groove of the first shell and the second positive pole end placing groove of the second shell are correspondingly matched and combined to form a positive pole end placing through hole, and the first negative pole end placing groove of the first shell and the second negative pole end placing groove of the second shell are correspondingly matched and combined to form a negative pole end placing through hole. Meanwhile, the utility model also provides a battery module manufactured by using the battery module shell disclosed by the utility model. The battery module shell disclosed by the utility model is simple in structure, convenient to mount and dismount, compact in structure and good in heat dissipation effect, and the battery module manufactured by using the battery module shell is convenient to mount and dismount and convenient to maintain and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery module shell and battery module. BACKGROUND

[0002] In the rapid development of the new energy automobile industry, battery technology, as one of the core driving forces, is undergoing continuous innovation and optimization. Currently, battery packs of various shapes are applied in different types of electric vehicles to meet the design, performance requirements and spatial layout of vehicles and other aspects of consideration. Among them, square battery packs are widely used in many vehicle models due to their compact structure and high energy density, including well-known brands such as Toyota Lexus. However, as the vehicle service life increases, battery aging becomes an inevitable problem, directly affecting the endurance and overall performance of electric vehicles, so battery packs need to be maintained and replaced. At the same time, due to the space limitations of the vehicle, the structure and heat dissipation effect of the battery pack will be more demanding. Therefore, how to design the battery module shell to facilitate the maintenance and replacement of the entire battery pack while ensuring the heat dissipation effect of the battery pack has become a major research topic. SUMMARY

[0003] The utility model aims at providing a battery module shell with simple structure, convenient installation and disassembly, compact structure and good heat dissipation effect, and also provides a battery module made of the battery module shell.

[0004] The utility model realizes the following schemes:

[0005] A battery module shell comprises a first shell and a second shell, one side of the first shell is provided with N first battery placement slots arranged transversely in parallel, the first shell is provided with a first positive electrode terminal placement slot at one end of the lowermost first battery placement slot, and is provided with a first negative electrode terminal placement slot at one end of the uppermost first battery placement slot, and the first negative electrode terminal placement slot is at a different end from the first positive electrode terminal placement slot; one side of the second shell is provided with N second battery placement slots arranged transversely in parallel, the second shell is provided with a second positive electrode terminal placement slot at a position opposite to the first positive electrode terminal placement slot of the first shell, and is provided with a second negative electrode terminal placement slot at a position opposite to the first negative electrode terminal placement slot of the first shell, wherein N is an odd number greater than 1; the first shell and the second shell are matched and combined together in a manner that the first battery placement slots and the second battery placement slots are opposite to each other, and the first battery placement slots and the second battery placement slots are matched and combined one by one to form battery placement channels, the first positive electrode terminal placement slot of the first shell and the second positive electrode terminal placement slot of the second shell are matched and combined to form a positive electrode terminal placement through hole, and the first negative electrode terminal placement slot of the first shell and the second negative electrode terminal placement slot of the second shell are matched and combined to form a negative electrode terminal placement through hole. In order to distinguish the battery terminals, the first positive electrode terminal placement slot and the first negative electrode terminal placement slot of the first shell can be designed to be different shapes, so as to distinguish the positive electrode terminal and the negative electrode terminal of the battery, the shape of the second positive electrode terminal placement slot of the second shell is the same as that of the first positive electrode terminal placement slot of the first shell, and the shape of the second negative electrode terminal placement slot of the second shell is the same as that of the first negative electrode terminal placement slot of the first shell.

[0006] Further, one end of the common part of the two adjacent first battery placement slots of the first shell is provided with a first notch, and the first notches are arranged in staggered manner, the lowermost first notch is at a different end from the first positive electrode terminal placement slot; one end of the common part of the two adjacent second battery placement slots of the second shell is provided with a second notch, and the second notches are arranged in staggered manner, the lowermost second notch is at a different end from the second positive electrode terminal placement slot; the first notches of the first shell and the second notches of the second shell are matched and combined together one by one.

[0007] Further, the other side of the first shell is provided with a plurality of first vertical through slots arranged in vertical parallel manner, and the bottom of the first vertical through slots is communicated with the bottom of the first battery placement slots, and the other side of the second shell is provided with a plurality of second vertical through slots arranged in vertical parallel manner, and the bottom of the second vertical through slots is communicated with the bottom of the second battery placement slots.

[0008] Further, the top and bottom of the first shell and the top and bottom of the second shell are provided with temperature probe clamping holes. The number and arrangement position of the temperature probe clamping holes can be adjusted and designed as required.

[0009] Further, the first shell and the second shell are matched and combined together through buckling. Specifically, buckles or / and buckling grooves are arranged on the first shell and the second shell respectively, and the buckles and the buckling grooves are matched and combined together one by one, so that the first shell and the second shell can be quickly matched and combined together, and the first shell and the second shell can be conveniently separated.

[0010] Further, the bottom of the one end surface of the first positive electrode terminal placement groove of the first shell and the top of the one end surface of the second negative electrode terminal placement groove of the second shell are vertically provided with first stop blocks respectively, the top of the one end surface of the first negative electrode terminal placement groove of the first shell and the bottom of the one end surface of the second positive electrode terminal placement groove of the second shell are vertically provided with second stop blocks respectively, and the side of the one end surface of the first negative electrode terminal placement groove of the first shell away from the first battery placement groove and the side of the one end surface of the second positive electrode terminal placement groove of the second shell away from the second battery placement groove are vertically provided with third stop blocks respectively, the third stop blocks and the second stop blocks are connected to form an L shape, and the first stop blocks and the second stop blocks are connected together. The first stop blocks of the first shell and the second stop blocks and the third stop blocks of the second shell can prevent mistaken connection, facilitate operation and avoid mistaken connection.

[0011] A battery module includes a plurality of battery groups and the battery module shell as described above, the plurality of battery groups are placed in the battery placement channels of the battery module shell one by one, the plurality of battery groups are connected together in series, and the positive electrode terminal and the negative electrode terminal of the battery module pass through the corresponding positive electrode terminal placement through hole and negative electrode terminal placement through hole of the battery module shell and are partially exposed.

[0012] The battery module shell has the advantages of simple structure, convenient installation and disassembly, compact structure, and the like. The first through groove of the first shell and the second through groove of the second shell can make the airflow flowing into the battery module shell more regular, the airflow enters from the first through groove of the first shell or the second through groove of the second shell, flows out from the second through groove of the second shell or the first through groove of the first shell after passing through the surfaces of the battery groups in the battery module shell, and the airflow flows regularly, so that the heat of the battery groups can be better and faster taken out, the temperature of the entire battery module is quickly reduced, and the temperature difference between the battery groups is reduced. The battery module made of the battery module shell has the advantages of regular airflow, fast temperature reduction of the battery module, prolonged service life of the battery module, convenient installation and disassembly of the battery module shell, convenient installation and disassembly of the battery module, and convenient maintenance and replacement of the battery module. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1This is a schematic diagram of the overall structure of the battery module housing in Example 1;

[0014] Figure 2 This is a schematic diagram of the structure of the first shell in Example 1;

[0015] Figure 3 This is a schematic diagram of the structure of the second shell in Example 1. Detailed Implementation

[0016] The embodiments are merely illustrative of one implementation of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] Example 1

[0018] A battery module housing, such as Figure 1 As shown, it includes a first housing 1 and a second housing 2, as follows: Figure 2 As shown, one side of the first housing 1 has three horizontally parallel, arc-shaped first battery placement slots 3. At one end of the lowest first battery placement slot 3, a first positive electrode placement slot 4 with a semi-square cross-section is provided. At one end of the highest first battery placement slot 3, a first negative electrode placement slot 5 with a semi-hexagonal cross-section is provided, and the first negative electrode placement slot 5 and the first positive electrode placement slot 4 are not at the same end. One end of the common portion of two adjacent first battery placement slots 4 on the first housing 1 has a first notch 6, and the first notches 6 are staggered. The lowest first notch 6 and the first positive electrode placement slot 4 are not at the same end. On the other side of the first housing 1, several vertically parallel first through slots 7 are provided, and the bottom of the first through slots 7 is connected to the bottom of the first battery placement slots 3. Figure 3As shown, one side of the second shell 2 is provided with three second battery placing grooves 8 arranged in transverse parallel and having arc-shaped cross sections, the second shell 2 is provided with a second positive electrode terminal placing groove 9 having a half-square structure in cross section at a position opposite to the first positive electrode terminal placing groove 4 of the first shell 1, the second shell 2 is provided with a second negative electrode terminal placing groove 10 having a half-hexagonal structure in cross section at a position opposite to the first negative electrode terminal placing groove 5 of the first shell 1, one end of a common part of two adjacent second battery placing grooves 8 of the second shell 2 is provided with a second notch 11 and the second notches 11 are arranged in staggered manner, the lowermost second notch 11 is located at a different end from the second positive electrode terminal placing groove 9, the other side of the second shell 2 is provided with a plurality of second vertical grooves 12 arranged in vertical parallel and the bottom of the second vertical grooves 12 is communicated with the bottom of the second battery placing grooves 8; the top and bottom of the first shell 1 and the top and bottom of the second shell 2 are all provided with temperature probe clamping holes 13; the bottom of the end face of the first positive electrode terminal placing groove 4 of the first shell 1 and the top of the end face of the second negative electrode terminal placing groove 10 of the second shell 2 are both vertically provided with first stop blocks 14, the top of the end face of the first negative electrode terminal placing groove 5 of the first shell 1 and the bottom of the end face of the second positive electrode terminal placing groove 9 of the second shell 2 are both vertically provided with second stop blocks 15, the side of the end face of the first negative electrode terminal placing groove 5 of the first shell 1 away from the first battery placing groove 3 and the side of the end face of the second positive electrode terminal placing groove 9 of the second shell 2 away from the second battery placing groove 8 are both vertically provided with third stop blocks 16, the third stop blocks 16 and the second stop blocks 15 are connected to form L-shaped structures; the first shell 1 and the second shell 2 are matched and combined together through buckling in a manner that the first battery placing groove 3 and the second battery placing groove 8 are opposite to each other and the first battery placing groove 3 and the second battery placing groove 8 are one-to-one correspondingly matched and combined to form a battery placing channel having a circular cross section, the first positive electrode terminal placing groove 4 of the first shell 1 and the second positive electrode terminal placing groove 9 of the second shell 2 are correspondingly matched and combined to form a positive electrode terminal placing through hole 17 having a square cross section, the first negative electrode terminal placing groove 5 of the first shell 1 and the second negative electrode terminal placing groove 10 of the second shell 2 are correspondingly matched and combined to form a negative electrode terminal placing through hole having a hexagonal cross section, the first notch 6 of the first shell 1 and the second notch 11 of the second shell 2 are one-to-one correspondingly matched and combined together, and the first stop blocks 14 and the second stop blocks 15 are correspondingly connected together.

[0019] Example 2

[0020] A battery module shell has a structure similar to that of the battery module shell of Example 1, except that the number of first battery placing grooves of the first shell is five and the number of second battery placing grooves of the second shell is five.

[0021] Example 3

[0022] A battery module comprises three groups of battery packs and the battery module shell as described in Embodiment 1, the three groups of battery packs are placed one by one in the battery placement channels of the battery module shell, the three groups of battery packs are connected in series, and the positive and negative terminal ends of the battery module pass through the corresponding positive terminal end placement through holes and negative terminal end placement through holes of the battery module shell and are partially exposed.

[0023] In the manufacturing process, first, the three groups of battery packs are connected in series according to the arrangement of the battery placement channels of the battery module shell, then the connected battery packs are placed one by one in the battery placement grooves of the first shell of the battery module shell, and the positive and negative terminal ends of the connected battery packs are correspondingly clamped in the first positive terminal end placement groove and the first negative terminal end placement groove of the first shell and partially exposed, then the second shell is clamped on the first shell by buckling, and the manufacturing of the battery module is completed. Subsequently, several battery modules can be connected in series to form a battery pack as needed.

Claims

1. A battery module housing, characterized by: The application relates to a battery placing device, which comprises a first shell and a second shell, one side of the first shell is provided with N first battery placing grooves arranged transversely and in parallel, one end of the first shell at the lowermost first battery placing groove is provided with a first positive electrode terminal placing groove, one end of the first shell at the uppermost first battery placing groove is provided with a first negative electrode terminal placing groove, and the first negative electrode terminal placing groove is different from the first positive electrode terminal placing groove in end; one side of the second shell is provided with N second battery placing grooves arranged transversely and in parallel, the second shell is provided with a second positive electrode terminal placing groove at a position opposite to the first positive electrode terminal placing groove of the first shell, and the second shell is provided with a second negative electrode terminal placing groove at a position opposite to the first negative electrode terminal placing groove of the first shell, wherein N is an odd number greater than 1; the first shell and the second shell are matched and combined together in a mode that the first battery placing grooves and the second battery placing grooves are opposite to each other and the first battery placing grooves and the second battery placing grooves are matched and combined in one-to-one correspondence to form battery placing channels, the first positive electrode terminal placing groove of the first shell and the second positive electrode terminal placing groove of the second shell are matched and combined in correspondence to form a positive electrode terminal placing through hole, and the first negative electrode terminal placing groove of the first shell and the second negative electrode terminal placing groove of the second shell are matched and combined in correspondence to form a negative electrode terminal placing through hole.

2. The battery module housing of claim 1, wherein: One end of a common part of two adjacent first battery placing grooves of the first shell is provided with a first notch, the first notches are arranged in staggered mode, the lowermost first notch is different from the first positive electrode terminal placing groove in end, one end of a common part of two adjacent second battery placing grooves of the second shell is provided with a second notch, the second notches are arranged in staggered mode, the lowermost second notch is different from the second positive electrode terminal placing groove in end, and the first notches of the first shell and the second notches of the second shell are matched and combined together in one-to-one correspondence.

3. The battery module housing of claim 1, wherein: The other side of the first shell is provided with a plurality of first vertical grooves arranged in parallel, and the bottom of the first vertical grooves is communicated with the bottom of the first battery placing grooves; the other side of the second shell is provided with a plurality of second vertical grooves arranged in parallel, and the bottom of the second vertical grooves is communicated with the bottom of the second battery placing grooves.

4. The battery module housing of claim 3, wherein: The top and the bottom of the first shell and the top and the bottom of the second shell are provided with temperature probe clamping holes.

5. The battery module housing of any one of claims 1 to 4, wherein: The first shell and the second shell are matched and combined together in a clamping mode.

6. The battery module housing of any one of claims 1 to 4, wherein: The bottom of the end face of the first positive electrode terminal placement slot of the first shell and the top of the end face of the second negative electrode terminal placement slot of the second shell are respectively provided with a first stopper vertically, the top of the end face of the first negative electrode terminal placement slot of the first shell and the bottom of the end face of the second positive electrode terminal placement slot of the second shell are respectively provided with a second stopper vertically, the side of the end face of the first negative electrode terminal placement slot of the first shell away from the first battery placement slot and the side of the end face of the second positive electrode terminal placement slot of the second shell away from the second battery placement slot are respectively provided with a third stopper vertically, the third stopper and the second stopper are connected to form an L shape, and the first stopper and the second stopper are connected together correspondingly.

7. A battery module, characterized by: The battery module shell comprises a plurality of groups of battery packs and a battery module shell as claimed in any one of claims 1-6, the plurality of groups of battery packs are placed one by one in the battery placement channels of the battery module shell, the plurality of groups of battery packs are connected together in series, and the positive electrode terminals and the negative electrode terminals of the battery module pass through the corresponding positive electrode terminal placement through holes and negative electrode terminal placement through holes of the battery module shell and are partially exposed.

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