CN214176170U

CN214176170U - Battery module casing and battery module

Info

Publication number: CN214176170U
Application number: CN202120197288.1U
Authority: CN
Inventors: 何亚飞
Original assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Current assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-09-10
Anticipated expiration: 2031-01-25

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery module shell and a battery module, wherein the battery module shell comprises an upper shell body, the upper shell body is provided with an upper accommodating groove, a group of side edges opposite to the opening end of the upper shell body are respectively extended with an upper fixing part, and the two upper fixing parts are respectively provided with a plurality of upper fixing holes; lower casing, lower casing have holding tank down, and the relative a set of side of open end of lower casing all extends down the fixed part, and two lower fixed parts all are equipped with a plurality of fixed orificess down, and two lower fixed parts are corresponding with two last fixed parts respectively, and every fixed orifices passes through bolted connection with every last fixed orifices respectively down. The utility model provides a battery module casing and battery module, it is fixed through a plurality of bolted connection with lower casing to go up the casing, can avoid because of the bad or connection failure of welding that welded connection probably leads to, structural strength is high, and the reliability is high, the high quality. The battery module using the battery module shell is high in production efficiency and reliability and can reduce production cost.

Description

Battery module casing and battery module

Technical Field

The utility model relates to a battery technology field especially relates to a battery module casing and battery module.

Background

The battery module casing can play the function of connecting, supporting, protection, is the key spare part of battery module, and current battery module casing adopts parts such as end plate, drain pan, top cap to assemble back welded fastening usually. Poor welding condition appears easily in each part welding process for the yield of battery module casing is low, and welding parts's structural strength is low, under stress concentration's state, leads to welding parts to connect inefficacy easily, makes battery module casing scrap.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery module casing and battery module, structural strength is high, the high quality.

To achieve the above object, in one aspect, the present invention provides a battery module case, including:

the upper shell is provided with an upper accommodating groove, a group of side edges opposite to the opening end of the upper shell extend to form upper fixing parts, and a plurality of upper fixing holes are formed in each of the two upper fixing parts;

the lower casing, the casing has holding tank down, a set of side that the open end of casing is relative down all extends fixed part, two down the fixed part all is equipped with a plurality of fixed orificess down, two down the fixed part respectively with two go up the fixed part corresponding, every down the fixed orifices respectively with every go up the fixed orifices and pass through bolted connection.

Preferably, the upper housing is provided with two high pressure output slots.

Preferably, the high-voltage protection device further comprises two high-voltage output protection seats, and the two high-voltage output protection seats are respectively fixed on the two high-voltage output notches.

Preferably, every the edge of high-voltage output notch all is equipped with first joint recess, every high-voltage output protection seat all is equipped with first joint portion, first joint portion joint in first joint recess.

Preferably, each high-voltage output protection seat is provided with a threaded through hole.

Preferably, the upper housing is provided with a low voltage connector slot.

Preferably, the connector protection device further comprises a low-voltage connector protection seat, and the low-voltage connector protection seat is fixed to the low-voltage connector notch.

Preferably, the edge of the notch of the low-voltage connector is provided with a second clamping groove, the low-voltage connector protection seat is provided with a second clamping portion, and the second clamping portion is clamped in the second clamping groove.

Preferably, the upper shell is provided with an upper glue injection hole, and the lower shell is provided with a lower glue injection hole.

On the other hand, the utility model provides a battery module, including foretell battery module casing.

The utility model has the advantages that: the utility model provides a battery module casing and battery module, it is fixed through a plurality of bolted connection with lower casing to go up the casing, can avoid because of the welding bad or connection inefficacy that welded connection probably leads to, the structural strength of battery module casing is high, and the reliability is high, the high quality. The battery module using the battery module shell is high in production efficiency and reliability and can reduce production cost.

Drawings

Fig. 1 is a schematic view of an upper housing of the present invention;

fig. 2 is a schematic view of the lower housing of the present invention;

FIG. 3 is a schematic view of the high voltage output protection base of the present invention;

fig. 4 is a schematic view of the low voltage connector protective housing of the present invention;

fig. 5 is an assembly schematic diagram of the battery module case of the present invention.

In the figure: 1. an upper housing; 11. an upper fixing portion; 111. an upper fixing hole; 12. a high pressure output slot; 13. a first clamping groove; 14. a low voltage connector slot; 15. filling glue holes; 2. a lower housing; 21. a lower fixing portion; 211. a lower fixing hole; 22. a glue pouring hole is formed; 3. a high-voltage output protection seat; 31. a first clamping part; 32. a U-shaped plate; 33. a base plate; 331. a threaded through hole; 4. a low voltage connector protection seat; 41. a second clamping part; 42. a baffle plate; 421. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a battery module casing and battery module, structural strength is high, the high quality. The battery module housing and the battery module according to the present invention will be described with reference to the following embodiments.

As shown in fig. 1 to 5, the battery module case provided in the present embodiment includes an upper case 1 and a lower case 2. Wherein, go up casing 1 and have last holding tank, lower casing 2 has lower holding tank, goes up casing 1 and lower casing 2 and connects the fixed main part that forms the battery module casing. Specifically, a set of side that the open end of last casing 1 is relative all extends and has gone up fixed part 11, and two go up fixed part 11 and all be equipped with a plurality of fixed orificess 111, and a set of side that the open end of casing 2 is relative down all extends fixed part 21, and two lower fixed parts 21 all are equipped with a plurality of fixed orificess 211 down, and two lower fixed parts 21 are corresponding with two last fixed parts 11 respectively, and every fixed orificess 211 passes through bolted connection with every last fixed orificess 111 respectively down. Go up casing 1 and casing 2 down and fix through a plurality of bolted connection, can avoid because of welding connection probably leads to the welding bad or connect the inefficacy, the structural strength of battery module casing is high, and the reliability is high, and the high quality is high.

In this embodiment, as shown in fig. 1 to 5, the upper fixing holes 111 are uniformly distributed on the upper fixing portion 11 along the length direction of the side of the upper housing 1 (refer to MN direction in fig. 1), and the lower fixing holes 211 are uniformly distributed on the lower fixing portion 21 along the length direction of the side of the lower housing 2 (refer to PQ direction in fig. 2), so that the connection quality of the upper housing 1 and the lower housing 2 can be further improved, and the situation that the stress is excessively large at individual connection positions can be avoided.

Preferably, as shown in fig. 1 to 5, the upper case 1 is provided with two high voltage output slots 12 in order to facilitate external wiring. It will be appreciated that the two high voltage output slots 12 are a positive high voltage output slot and a negative high voltage output slot respectively.

In this embodiment, as shown in fig. 1 to 5, the battery module housing further includes two high-voltage output protection seats 3, and the two high-voltage output protection seats 3 are respectively fixed to the two high-voltage output notches 12, so as to perform an insulating protection function. Further, the edge of every high-voltage output notch 12 all is equipped with first joint recess 13, and every high-voltage output protection seat 3 all is equipped with first joint portion 31, and first joint portion 31 joint is in first joint recess 13, and the installation of the high-voltage output protection seat 3 of being convenient for is fixed. Furthermore, each high-voltage output protection base 3 is provided with a threaded through hole 331, so that the high-voltage output protection base 3 can be fixed on the cell connector through a bolt, and an external circuit can be conveniently fixed.

Illustratively, as shown in fig. 1 to 5, the high-voltage output protection socket 3 includes a U-shaped plate 32 and a bottom plate 33, wherein the U-shaped plate 32 and the bottom plate 33 have an insulation protection function. Specifically, two opposite side walls of the U-shaped plate 32 are fixed on the bottom plate 33, and a gap is left between the bottom of the other side wall of the U-shaped plate 32 and the bottom plate 33, so that the cell connectors can pass through the gap. Further, a threaded through hole 331 is formed in the bottom plate 33, first protruding strips extend from two side walls of the bottom plate 33 to form a first clamping portion 31, and correspondingly, two first clamping grooves 13 are formed in the lower edge of the high-voltage output slot 12. Illustratively, the high-voltage output protection seat 3 may be integrally formed, which is convenient for manufacturing.

Alternatively, the U-shaped plate 32 and the bottom plate 33 may extend to form a plurality of first protruding strips to form a plurality of first clamping portions 31, accordingly, a plurality of first clamping grooves 13 may be disposed on four edges of the high voltage output slot 12, and the plurality of first clamping grooves 13 are clamped by the plurality of first clamping portions 31, so that the stability of installation is further improved. It will be understood that the upper shell 1 can also extend outwardly to form a first snap-fit groove for snap-fit engagement with the first snap-fit portion 31.

In this embodiment, as shown in fig. 1 to 5, in order to facilitate external wiring, the upper housing 1 is provided with a low-voltage connector notch 14.

Preferably, as shown in fig. 1 to 5, the battery module housing further includes a low-voltage connector protection seat 4, and the low-voltage connector protection seat 4 is fixed to the low-voltage connector notch 14 and can play a role of insulation protection. Further, the edge of the low-voltage connector notch 14 is provided with a second clamping groove (not shown in the figure), the low-voltage connector protection seat 4 is provided with a second clamping portion 41, and the second clamping portion 41 is clamped in the second clamping groove, so that the low-voltage connector protection seat 4 can be conveniently installed and fixed.

Illustratively, as shown in fig. 1 to 5, the low-voltage connector protection seat 4 includes a baffle 42, and the baffle 42 has an insulating protection function. Specifically, the baffle 42 is provided with a through hole 421 for facilitating external wiring. Further, two side walls of the baffle 42 extend with second convex strips to form second clamping portions 41, and correspondingly, two side edges of the low-voltage connector notch 14 are provided with second clamping grooves. Illustratively, the low-voltage connector protection seat 4 may be integrally formed, which is convenient for manufacturing.

Alternatively, four wall surfaces of the baffle 42 may extend to form a plurality of second protruding strips to form a plurality of second clamping portions 41, and correspondingly, four edges of the high-voltage output notch 12 may be provided with a plurality of second clamping grooves, and the plurality of second clamping grooves are clamped by the plurality of second clamping portions 41, so that the mounting stability is further improved. It will be understood that the upper shell 1 can also extend outward to form a second clamping convex groove to be clamped and matched with the second clamping part 41.

Preferably, as shown in fig. 1 to 5, the upper case 1 is provided with an upper gel injection hole 15, and the lower case 2 is provided with a lower gel injection hole 22, so as to facilitate the injection of gel into the battery module case, but of course, other fillers may be injected. Further, the upper glue injection hole 15 and the lower glue injection hole 22 are uniformly distributed in the length direction of the side edge of the shell, so that the injection efficiency can be improved.

The battery module that this embodiment provided, including foretell battery module casing, the battery module that uses this battery module casing production efficiency is high, and the reliability is high, can reduction in production cost.

It can be seen from the above-mentioned embodiment that the battery module casing and the battery module that this embodiment provided, it is fixed that upper housing 1 and lower casing 2 pass through a plurality of bolted connection, can avoid because of the welding connection welding that probably leads to is bad or connect the inefficacy, and the structural strength of battery module casing is high, and the reliability is high, and the high quality is high. The battery module using the battery module shell is high in production efficiency and reliability and can reduce production cost.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery module housing, comprising:

the upper shell (1) is provided with an upper accommodating groove, a group of side edges opposite to the opening end of the upper shell (1) extend to form upper fixing parts (11), and a plurality of upper fixing holes (111) are formed in each of the two upper fixing parts (11);

lower casing (2), lower casing (2) have lower holding tank, a set of side that the open end of lower casing (2) is relative all extends down fixed part (21), two fixed part (21) all are equipped with a plurality of lower fixed orificess (211), two down fixed part (21) respectively with two go up fixed part (11) corresponding, every fixed orificess (211) respectively with every go up fixed orificess (111) and pass through bolted connection.

2. The battery module case according to claim 1, wherein the upper case (1) is provided with two high-voltage output slots (12).

3. The battery module housing according to claim 2, further comprising two high-voltage output protection seats (3), the two high-voltage output protection seats (3) being fixed to the two high-voltage output slots (12), respectively.

4. The battery module shell according to claim 3, wherein a first clamping groove (13) is formed in the edge of each high-voltage output notch (12), a first clamping portion (31) is formed in each high-voltage output protective seat (3), and the first clamping portion (31) is clamped in the first clamping groove (13).

5. The battery module case according to claim 4, wherein each of the high-voltage output protection seats (3) is provided with a threaded through-hole (331).

6. The battery module housing according to claim 1, wherein the upper housing (1) is provided with a low-voltage connector slot (14).

7. The battery module housing according to claim 6, further comprising a low-voltage connector protection seat (4), the low-voltage connector protection seat (4) being fixed to the low-voltage connector notch (14).

8. The battery module casing according to claim 7, wherein the edge of the low-voltage connector notch (14) is provided with a second clamping groove, the low-voltage connector protection seat (4) is provided with a second clamping portion (41), and the second clamping portion (41) is clamped in the second clamping groove.

9. The battery module case according to claim 1, wherein the upper case (1) is provided with an upper glue injection hole (15) and the lower case (2) is provided with a lower glue injection hole (22).

10. A battery module comprising the battery module case according to any one of claims 1 to 9.