Battery exhaust assembly, battery and electric equipment

Abstract

The embodiment of the utility model provides a battery exhaust assembly, a battery and electric equipment, and relates to the technical field of batteries. The battery exhaust assembly comprises an exhaust shell, a first separation rib and a sealing piece, an exhaust channel is defined by the exhaust shell, the first separation rib is contained in the exhaust channel and divides the exhaust channel into a first sub-channel and a second sub-channel, and the exhaust shell is provided with a first air inlet hole and a second air inlet hole; the first air inlet hole is communicated with the first space and the first sub-channel, the second air inlet hole is communicated with the second space and the second sub-channel, the sealing element divides the first sub-channel into two first sub-channels, and the two first sub-channels are communicated with the first air inlet hole. And the internal space for accommodating the battery cells can be separated independently, and the independent space is used for exhausting air respectively, so that heat diffusion among the battery cells is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery exhaust component, a battery and an electrical device. Background Art

[0002] In order to prevent explosion accidents, the battery pack is usually provided with an exhaust structure. The related technology usually provides an exhaust channel in the battery pack, and the exhaust channel is connected to the explosion-proof valve on the battery pack. During the use of the battery, if the air pressure inside the exhaust channel increases to a certain level, the explosion-proof valve opens, and the gas inside the battery cell is discharged through the explosion-proof valve. However, in the process of the gas in the battery pack being discharged from the exhaust channel to the explosion-proof valve, it will diffuse around the accommodating cavity that accommodates the battery cell, causing the gas and heat to diffuse to the non-heated battery cell, which can easily cause heat diffusion between the battery cells, and cause the non-heated battery cell to have thermal runaway in a high temperature environment. Utility Model Content

[0003] The utility model aims to provide a battery exhaust assembly, a battery and an electrical device, which solves the problem that a plurality of battery cells cannot independently dissipate heat, and easily causes heat diffusion between the battery cells.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a battery exhaust assembly, which is used to be accommodated in a battery shell and divide the interior of the battery shell into a first space and a second space, including: an exhaust shell, which is enclosed to form an exhaust channel, the exhaust shell having a first air inlet hole and a second air inlet hole, both of which are connected to the exhaust channel; a first dividing rib, which is accommodated in the exhaust channel, the first dividing rib divides the exhaust channel into a first sub-channel and a second sub-channel, the first air inlet hole connects the first space and the first sub-channel, and the second air inlet hole connects the second space and the second sub-channel; a sealing member, which is at least partially accommodated in the first sub-channel, the sealing member divides the first sub-channel into at least two first sub-channels, at least two of the first sub-channels are connected to the first air inlet hole, and the two first sub-channels and the second sub-channels are used to communicate with the outside of the battery shell.

[0006] In one embodiment, the seal separates the second sub-channel into at least two secondary sub-channels, and the seal is used to separate the first sub-channel and the second sub-channel simultaneously.

[0007] In one embodiment, there are multiple first air inlet holes, and the multiple first air inlet holes are arranged at intervals in the extension direction of the first dividing rib, and the extension direction of the first dividing rib is the same as the conduction direction of the first sub-channel and the second sub-channel.

[0008] In one embodiment, an arrangement direction of the first sub-channel and the second sub-channel is parallel to an arrangement direction of the first space and the second space.

[0009] In one embodiment, the first sub-channel and the second sub-channel are stacked and arranged in a direction perpendicular to a conducting direction of the exhaust channel.

[0010] In one embodiment, the battery exhaust assembly also includes a mounting frame, which is connected to the exhaust shell, and the mounting frame has a plurality of mounting portions, and the plurality of mounting portions are spaced apart in an extension direction of the mounting frame, and the extension direction of the mounting frame is the same as the conducting direction of the exhaust channel, and the mounting portion is used for installation with the battery shell.

[0011] In one embodiment, the mounting frame, the first sub-channel and the second sub-channel are sequentially stacked and arranged in a direction perpendicular to the conducting direction of the exhaust channel.

[0012] In one embodiment, the battery exhaust assembly further includes a mounting frame, the mounting frame is connected to the exhaust housing, the mounting frame has a mounting groove, the mounting groove connects the first space and the second space, and the mounting groove is used to pass an electrical connector.

[0013] In one embodiment, the bottom wall of the mounting groove has a sealing hole, the sealing hole is connected to the exhaust channel, and the sealing member closes the sealing hole.

[0014] In the second aspect, the utility model also provides a battery, comprising a battery cell, a battery shell and a battery exhaust assembly according to any one of the embodiments of the first aspect, wherein the battery exhaust assembly is accommodated inside the battery shell and divides the interior of the battery shell into a first space and a second space, the number of the battery cells is at least two, and at least two of the battery cells are respectively accommodated in the first space and the second space; at least two of the first sub-channels and the second sub-channels are connected to the outside of the battery shell.

[0015] In one embodiment, the battery housing includes side beams, the number of the side beams is at least two, an air outlet channel is provided inside the side beam, the air outlet channel is respectively connected to the first branch channel and the second branch channel, and the air outlet channel is used to communicate with the outside of the battery housing.

[0016] In one embodiment, a reinforcing rib is provided in the side beam, the reinforcing rib is located inside the air outlet channel, and an extending direction of the reinforcing rib is parallel to a conducting direction of the air outlet channel.

[0017] In one embodiment, an explosion-proof valve is provided on the battery housing, and the gas outlet channel is connected to the exhaust channel of the battery exhaust assembly and the explosion-proof valve, so that the gas in the first space and the second space is discharged from the exhaust channel, the gas outlet channel and the explosion-proof valve in sequence.

[0018] In one embodiment, the battery further includes a first separator, which is disposed in the first space and divides the first space into at least two first sub-spaces. There are multiple battery cells, and the multiple battery cells are respectively accommodated in the first sub-spaces and the second space.

[0019] In one embodiment, one end of the first partition abuts against the exhaust shell, and the battery further includes a first sealing member connected between the other end of the first partition and the battery shell, and the first sealing member is used to fill the gap between the two first sub-spaces.

[0020] In one embodiment, an explosion-proof valve is provided on the battery housing, the gas outlet channel is connected to the exhaust channel of the battery exhaust assembly and the explosion-proof valve, there are multiple explosion-proof valves, and at least one explosion-proof valve is located in a single first sub-space.

[0021] In one embodiment, the battery further includes an electrical connector, which is disposed in the first partition and passes through a mounting groove of the battery exhaust assembly, and is used to electrically connect the battery cells in the first space and the second space.

[0022] In one embodiment, the battery further includes an insulating bracket, the insulating bracket is disposed in the mounting groove, the insulating bracket and the electrical connector are interlaced and connected, and the insulating bracket is used to separate the first space and the second space.

[0023] In one embodiment, the battery further includes a second separator, which is disposed in the second space and divides the second space into at least two second sub-spaces, and the plurality of battery cells are respectively accommodated in the first sub-space and the second sub-space.

[0024] In one embodiment, one end of the second partition abuts against the exhaust shell, and the battery further includes a second sealing member connected between the other end of the second partition and the battery shell, and the second sealing member is used to fill the gap between the two first sub-spaces.

[0025] In one embodiment, a plurality of explosion-proof valves are provided on the battery housing, the gas outlet channel is connected to the exhaust channel of the battery exhaust assembly and the explosion-proof valves, at least one explosion-proof valve is located in a single first sub-space, and at least one explosion-proof valve is located in a single second sub-space.

[0026] In a third aspect, the present invention further provides an electrical device, comprising a battery as described in any one of the embodiments of the second aspect.

[0027] The battery exhaust assembly provided by the utility model includes an exhaust shell and a first dividing rib, the exhaust shell is enclosed to form an exhaust channel, the first dividing rib is accommodated in the exhaust channel and divides the exhaust channel into a first sub-channel and a second sub-channel, the exhaust shell has a first air inlet hole and a second air inlet hole, the first air inlet hole connects the first space and the first sub-channel, the second air inlet hole connects the second space and the second sub-channel, so that the first dividing rib hinders the gas from diffusing from the first sub-channel to the second sub-channel, and the heat of the first space cannot diffuse to the second space with the gas; similarly, the heat of the second space cannot diffuse to the first space with the gas.

[0028] The battery exhaust assembly also includes a seal, which is at least partially accommodated in the first sub-channel. The seal divides the first sub-channel into two first sub-channels. The two first sub-channels are connected to the first air inlet, so that the gas in the first space enters the two first sub-channels respectively, and after entering the two first sub-channels, moves in opposite directions in the two first sub-channels and is discharged from the battery shell, so that the gas in the first space is exhausted simultaneously through two independent channels, thereby shortening the exhaust path of the gas and improving the exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic structural diagram of a battery housing according to an embodiment;

[0031] Figure 2 is a schematic structural diagram of an exhaust housing according to an embodiment;

[0032] Figure 3 is a front view of an exhaust housing according to an embodiment;

[0033] Figure 4 yes Figure 3Schematic diagram of the cross section at AA;

[0034] Figure 5 is a rear view of an exhaust housing of one embodiment;

[0035] Figure 6 is a schematic cross-sectional view and a partial enlarged view of an exhaust housing in a battery housing according to an embodiment;

[0036] Figure 7 is a schematic diagram of the structure of a battery and a partial enlarged diagram of an embodiment;

[0037] Figure 8 The invention discloses a battery housing, an exploded view of an insulating bracket and an enlarged view of the insulating bracket, an exploded view of a first blocking member and an enlarged view of the first blocking member in an embodiment.

[0038] Description of reference numerals:

[0039] 10-exhaust housing, 11-first air inlet, 12-second air inlet;

[0040] 20-mounting frame, 21-mounting portion, 22-mounting slot;

[0041] 30-battery housing, 31-first space, 32-second space;

[0042] 40 - exhaust channel, 41 - first dividing rib, 42 - sealing member, 421 - sealing hole, 43 - first sub-channel, 431 - first sub-channel, 44 - second sub-channel, 441 - second sub-channel;

[0043] 50-battery cell, 60-explosion-proof valve;

[0044] 70-side beam, 71-reinforcement rib, 72-air outlet channel, 721-first air outlet channel, 722-second air outlet channel;

[0045] 80 - electrical connection piece, 81 - first partition piece, 811 - first blocking piece, 82 - second partition piece, 821 - second blocking piece;

[0046] 90 - insulating bracket, 91 - first insulating bracket, 92 - card slot, 93 - fixing slot, 94 - second insulating bracket. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, 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.

[0048] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0053] The utility model embodiment provides a battery exhaust assembly, see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The battery exhaust assembly is used to be accommodated in the battery shell 30. The battery shell 30 has a space for accommodating the battery cell 50. The two ends of the battery exhaust assembly are connected to the battery shell 30, and the space for accommodating the battery cell 50 is separated into a first space 31 and a second space 32. The first space 31 and the second space 32 are both independent enclosed spaces. The battery exhaust assembly includes an exhaust shell 10 and a first dividing rib 41. The exhaust shell 10 encloses an exhaust channel 40. The first dividing rib 41 is accommodated in the exhaust channel 40. The first dividing rib 41 divides the exhaust channel 40 into a first sub-channel 43 and a second sub-channel 44, so that the first sub-channel 43 and the second sub-channel 44 can be exhausted independently, and the gases in the first sub-channel 43 and the second sub-channel 44 do not interfere with each other.

[0054] Optionally, the arrangement direction of the first sub-channel 43 and the second sub-channel 44 is parallel to the arrangement direction of the first space 31 and the second space 32, so that after the battery exhaust assembly is installed with the battery housing 30, the first sub-channel 43 is connected to the first space 31, and the second sub-channel 44 is connected to the second space 32, thereby realizing independent exhaust of the first space 31 and the second space 32, and the gases in the first space 31 and the second space 32 do not interfere with each other.

[0055] Optionally, the first sub-channel 43 and the second sub-channel 44 are stacked in a direction perpendicular to the conduction direction of the exhaust channel 40, so that after the battery exhaust assembly is installed with the battery housing 30, the first sub-channel 43 is connected to the first space 31, and the second sub-channel 44 is connected to the second space 32, thereby realizing independent exhaust of the first space 31 and the second space 32, and the gases in the first space 31 and the second space 32 do not interfere with each other.

[0056] The exhaust shell 10 has a first air inlet hole 11 and a second air inlet hole 12, the first air inlet hole 11 is connected to the first space 31 and the first sub-channel 43, the second air inlet hole 12 is connected to the second space 32 and the second sub-channel 44, and the first sub-channel 43 and the second sub-channel 44 are both used to communicate with the outside of the battery shell 30; so that the gas in the first space 31 enters the first sub-channel 43 through the first air inlet hole 11, and is then discharged through the outside of the battery shell 30 connected to the first sub-channel 43, and the gas in the second space 32 enters the second sub-channel 44 through the second air inlet hole 12, and is then discharged through the outside of the battery shell 30 connected to the second sub-channel 44, so that the gas in the first space 31 will not diffuse to the second space 32 through the exhaust channel 40, thereby preventing the heat in the first space 31 from diffusing to the second space 32, causing thermal runaway of the battery cell 50 in the second space 32, and realizing independent exhaust of the battery cells 50 in the two spaces without affecting each other, thereby improving the safety performance of the battery.

[0057] The gas in the first space 31 enters the first sub-channel 43 through the first air inlet 11, and then is discharged from the battery housing 30 through the outside of the battery housing 30 communicating with the first sub-channel 43; the gas in the second space 32 enters the second sub-channel 44 through the second air inlet 12, and then is discharged from the battery housing 30 through the outside of the battery housing 30 communicating with the second sub-channel 44. The first separation rib 41 prevents the gas from diffusing from the first sub-channel 43 to the second sub-channel 44, so that the heat of the first space 31 cannot be diffused to the second space 32 with the gas; similarly, the first separation rib 41 prevents the gas from diffusing from the second sub-channel 44 to the first sub-channel 43, so that the heat of the second space 32 cannot be diffused to the first space 31 with the gas.

[0058] The battery exhaust assembly also includes a seal 42, which is at least partially accommodated in the first sub-channel 43. The seal 42 is a solid structure, and the seal 42 abuts against the side walls of the first sub-channel 43 to hinder the flow of gas in the first sub-channel 43, so that the heat on one side of the seal 42 cannot diffuse to the other side of the seal 42 along with the gas.

[0059] The seal 42 divides the first branch channel 43 into two first channels 431, both of which are connected to the first air inlet 11, and both of which are used to communicate with the outside of the battery housing 30; so that the gas on both sides of the seal 42 in the first space 31 can enter the two first channels 431 from the first air inlet 11 of the two first channels 431, and then be discharged through the outside of the battery housing 30 connected to the two first channels 431, so that the gas on both sides of the seal 42 in the first space 31 will not diffuse with each other through the first branch channel 43, thereby avoiding the heat on both sides of the seal 42 in the first space 31 Diffusion, which causes the battery cell 50 on one side of the seal 42 to cause thermal runaway of the battery cell 50 on the other side of the seal 42, so that the battery cells 50 on both sides of the seal 42 in the first space 31 and the battery cells 50 in the second space 32 can be exhausted independently without affecting each other, thereby improving the safety performance of the battery. Optionally, the seal 42 is welded to the exhaust housing 10.

[0060] The two first sub-channels 431 are the first channel and the second channel. When the battery cell 50 in the first space 31 generates heat and generates gas, the gas enters the first channel and the second channel respectively through the first air inlet 11. After entering the first channel and the second channel, the gas moves in opposite directions in the first channel and the second channel and is discharged from the battery housing 30. The seal 42 divides the first sub-channel 43 into two, so that the gas in the first space 31 is exhausted simultaneously through two independent channels, shortening the exhaust path of the gas and improving the exhaust efficiency.

[0061] Optionally, the seal 42 divides the second sub-channel 44 into at least two secondary channels 441, and the two secondary channels 441 are both used to communicate with the outside of the battery housing 30; so that the gas on both sides of the seal 42 in the second space 32 will not diffuse through the second sub-channel 44, thereby avoiding the mutual diffusion of heat on both sides of the seal 42 in the second space 32, and realizing independent exhaust of the battery cells 50 on both sides of the seal 42 in the second space 32. The seal 42 is used to simultaneously separate the first sub-channel 43 and the second sub-channel 44, so that two independent battery cells 50 can be placed in each of the first space 31 and the second space 32, and the gas generated by the two battery cells 50 will not diffuse through the exhaust channel 40, thereby avoiding the mutual diffusion of heat generated by the two battery cells 50, and realizing independent exhaust of multiple battery cells 50 in the first space 31 and the second space 32 without affecting each other.

[0062] The two secondary channels 441 are the third channel and the fourth channel, so that the gas in the second space 32 is exhausted simultaneously through two independent channels, shortening the exhaust path of the gas and improving the exhaust efficiency.

[0063] The battery exhaust assembly includes an exhaust shell 10 and a first dividing rib 41, the exhaust shell 10 encloses an exhaust channel 40, the first dividing rib 41 is accommodated in the exhaust channel 40 and divides the exhaust channel 40 into a first sub-channel 43 and a second sub-channel 44, the exhaust shell 10 has a first air inlet hole 11 and a second air inlet hole 12, the first air inlet hole 11 connects the first space 31 and the first sub-channel 43, the second air inlet hole 12 connects the second space 32 and the second sub-channel 44, so that the first dividing rib 41 blocks the gas from diffusing from the first sub-channel 43 to the second sub-channel 44, and the heat of the first space 31 cannot diffuse to the second space 32 with the gas; similarly, the heat of the second space 32 cannot diffuse to the first space 31 with the gas.

[0064] The battery exhaust assembly also includes a seal 42, which is at least partially accommodated in the first sub-channel 43. The seal 42 divides the first sub-channel 43 into two first sub-channels 431. The two first sub-channels 431 are both connected to the first air inlet 11, so that the gas in the first space 31 enters the two first sub-channels 431 respectively, and after entering the two first sub-channels 431, moves in opposite directions in the two first sub-channels 431, and

[0065] The battery housing 30 is discharged so that the gas in the first space 31 is discharged simultaneously through two independent channels, thereby shortening the exhaust path of the gas and improving the exhaust efficiency.

[0066] In one implementation, see Figure 2 , Figure 3 , Figure 4 and Figure 5 The number of the first air inlet holes 11 is multiple, so that the number of the first air inlet holes 11 increases, thereby increasing the volume of gas that can enter the first channel 431 per unit time, which is beneficial to improving the exhaust efficiency of the first channel 431. There is at least one first air inlet hole 11 on each of the two first channels 431, so that both of the first channels 431 can allow gas to enter and then be discharged.

[0067] Similarly, the number of the second air inlet holes 12 is multiple, which is beneficial to improving the exhaust efficiency of the secondary channel 441. Optionally, the seal 42 divides the second branch channel 44 into at least two secondary channels 441, and each of the two secondary channels 441 has at least one second air inlet hole 12, so that both of the two secondary channels 441 can allow gas to enter, thereby allowing gas to be discharged.

[0068] The conducting direction of the first sub-channel 43 is the flow direction of the gas after entering the first sub-channel 43 from the first air inlet 11 ; similarly, the conducting direction of the second sub-channel 44 is the flow direction of the gas after entering the second sub-channel 44 from the second air inlet 12 .

[0069] The extension direction of the first dividing rib 41 is the same as the conduction direction of the first sub-channel 43 and the second sub-channel 44, that is, the first dividing rib 41 can separate the first sub-channel 43 and the second sub-channel 44 in any direction in the exhaust channel 40, including but not limited to the first sub-channel 43 and the second sub-channel 44 are respectively located on the upper side and the lower side of the first dividing rib 41, or the first sub-channel 43 and the second sub-channel 44 are respectively located on the left side and the right side of the first dividing rib 41.

[0070] The plurality of first air inlet holes 11 are arranged at intervals in the extension direction of the first dividing rib 41 , so that the first air inlet holes 11 always connect the first space 31 and the first sub-channel 43 , and the gas in the first space 31 can enter the first sub-channel 43 through different first air inlet holes 11 .

[0071] Similarly, the plurality of second air inlet holes 12 are spaced apart in the extension direction of the first dividing rib 41 so that the second air inlet holes 12 are always connected to the second space 32 and the second sub-channel 44 , and the gas in the second space 32 can enter the second sub-channel 44 through different second air inlet holes 12 .

[0072] In one implementation, see Figure 2The battery exhaust assembly also includes a mounting frame 20, which is connected to the exhaust shell 10. The extension direction of the mounting frame 20 is the same as the conduction direction of the exhaust channel 40, which is beneficial to avoid the mounting frame 20 interfering with the conduction direction of the exhaust channel 40 and affecting the exhaust effect of the battery exhaust assembly. At the same time, it simplifies the installation of the battery exhaust assembly and the battery shell 30, and the sealing between the battery exhaust assembly and the battery shell 30 is achieved through the mounting frame 20, so as to avoid the presence of a gap between the battery exhaust assembly and the battery shell 30, which causes the gas to diffuse in the first space 31 and the second space 32.

[0073] The mounting frame 20 has a plurality of mounting portions 21, which are spaced apart in the extension direction of the mounting frame 20. The mounting portions 21 are used for mounting with the battery housing 30, which is beneficial to enhancing the stability of the installation of the battery exhaust assembly and the battery housing 30, and further improving the sealing between the battery exhaust assembly and the battery housing 30.

[0074] Optionally, the mounting frame 20, the first sub-channel 43 and the second sub-channel 44 are sequentially stacked in a direction perpendicular to the conducting direction of the exhaust channel 40, so that after the battery exhaust assembly is installed with the battery shell 30, the mounting frame 20 can separate the first space 31 and the second space 32, thereby achieving sealing between the battery exhaust assembly and the battery shell 30.

[0075] In one implementation, see Figure 2 and Figure 3 The battery exhaust assembly also includes a mounting frame 20, which is connected to the exhaust shell 10. The mounting frame 20 has a mounting groove 22. The mounting groove 22 and the plurality of mounting portions 21 are spaced apart. The mounting groove 22 connects the first space 31 and the second space 32. The mounting groove 22 is used to pass the electrical connector 80, which is beneficial for providing an accommodation space for the battery exhaust assembly to be connected to other structures after being installed in the battery shell 30.

[0076] Optionally, the bottom wall of the mounting groove 22 has a sealing hole 421, and the sealing hole 421 is connected to the exhaust channel 40. The sealing member 42 closes the sealing hole 421, so that after the battery exhaust assembly is installed in the battery housing 30, the installation position of other structures corresponds to the sealing member 42, which is conducive to connecting the direction of multiple exhaust paths with the distribution of other structures.

[0077] It can be understood that, during the actual installation process of the seal 42, if the installation groove 22 is not provided, the seal 42 can be moved from the side of the battery exhaust assembly close to the first space 31 to the side close to the second space 32, so as to be installed to the sealing hole 421; if the installation groove 22 is provided, the seal 42 can also be installed to the sealing hole 421 from the bottom wall of the installation groove 22.

[0078] The utility model also provides a battery, see Figure 1, Figure 6 , Figure 7 and Figure 8 The battery comprises a battery cell 50, a battery casing 30 and a battery exhaust assembly of any one of the above embodiments, wherein the battery exhaust assembly is accommodated in the battery casing 30 and divides the interior of the battery casing 30 into a first space 31 and a second space 32. The battery cell 50 is accommodated in the battery casing 30, and the number of the battery cells 50 is at least two, and at least two battery cells 50 are accommodated in the first space 31 and the second space 32 in the battery casing 30, respectively.

[0079] At least two first channels 431 and the second channel 44 are connected to the outside of the battery shell 30, so that the gas on both sides of the seal 42 in the first space 31 can be discharged to the outside of the battery shell 30 from the at least two first channels 431 respectively, and the gas on both sides of the seal 42 in the second space 32 can be discharged to the outside of the battery shell 30 from the at least two second channels 441 respectively.

[0080] The gases in at least two first sub-channels 431 and the second sub-channels 44 can be discharged to the outside of the battery housing 30 through an automatically controlled or manually controlled exhaust device.

[0081] In one implementation, see Figure 6 The battery housing 30 includes a side beam 70, and the number of the side beams 70 is at least two. An air outlet channel 72 is arranged inside the side beam 70, and the air outlet channel 72 is respectively connected to the first branch channel 431 and the second branch channel 44. The air outlet channel 72 is used to communicate with the outside of the battery housing 30 so that the gas on both sides of the seal 42 can be discharged through the air outlet channels 72 of at least two side beams 70, thereby avoiding mutual diffusion of heat on both sides of the seal 42 and realizing independent exhaust of the battery cells 50 on both sides of the seal 42.

[0082] Optionally, a reinforcing rib 71 is provided in the side beam 70, and the reinforcing rib 71 is located inside the air outlet channel 72. The extension direction of the reinforcing rib 71 is parallel to the conduction direction of the air outlet channel 72, so that the reinforcing rib 71 separates the air outlet channel 72 along the conduction direction of the air outlet channel 72, thereby avoiding the reduction in strength of the side beam 70 due to the excessive cross-sectional area of ​​the air outlet channel 72, which is beneficial to enhancing the strength of the side beam 70, thereby enhancing the strength of the battery casing 30.

[0083] Optionally, the reinforcing rib 71 divides the internal space of the air outlet channel 72 into a first air outlet channel 721 and a second air outlet channel 722, the first air outlet channel 721 is connected to the first sub-channel 43, the second air outlet channel 722 is connected to the second sub-channel 44, and the first air outlet channel 721 and the second air outlet channel 722 are both connected to the explosion-proof valve 60; so that the gas entering the first sub-channel 43 can enter the first air outlet channel 721, and then be discharged through the explosion-proof valve 60 connected to the first air outlet channel 721, and the gas entering the second sub-channel 44 can enter the second air outlet channel 722, and then be discharged through the explosion-proof valve 60 connected to the second air outlet channel 722, so that the gases in the first sub-channel 43 and the second sub-channel 44 will not diffuse with each other in the air outlet channel 72, so that there are multiple independent exhaust paths in the battery housing 30, and multiple battery cells 50 are independently exhausted without affecting each other.

[0084] In one implementation, see Figure 7 An explosion-proof valve 60 is provided on the battery housing 30, and the gas outlet channel 72 is connected to the exhaust channel 40 of the battery exhaust assembly and the explosion-proof valve 60, so that the gas in the first space 31 and the second space 32 is discharged from the exhaust channel 40, the gas outlet channel 72 and the explosion-proof valve 60 in sequence.

[0085] Optionally, there are multiple explosion-proof valves 60, the first sub-channel 43 and the second sub-channel 44 are connected to different explosion-proof valves 60, and the two first sub-channels 431 are connected to two different explosion-proof valves 60, so that the gases in the two first sub-channels 431 and the second sub-channels 44 are discharged through separate explosion-proof valves 60. Compared with the shared explosion-proof valve 60, this avoids the different channels being connected to each other at the explosion-proof valve 60, and the gases diffusing with each other in different channels, which is conducive to the independent exhaust of different channels.

[0086] Optionally, the seal 42 divides the second branch channel 44 into at least two secondary channels 441 , and the two secondary channels 441 are connected to two different explosion-proof valves 60 , so that the gas in the two secondary channels 441 is discharged through separate explosion-proof valves 60 .

[0087] In one implementation, see Figure 7 and Figure 8 The battery further includes a first separator 81, which is disposed in the first space 31 and divides the first space 31 into at least two first sub-spaces. There are multiple battery cells 50, and the multiple battery cells 50 are respectively accommodated in the first sub-space and the second space 32.

[0088] The first partition 81 is sealed and connected to the inner wall of the battery casing 30, so that the gas generated by the battery cells 50 on one side of the seal 42 in the first space 31 can only be discharged through the first air inlet 11 on this side and will not diffuse to the other side of the seal 42, further realizing independent exhaust of multiple battery cells 50 in the first space 31 without affecting each other.

[0089] Optionally, one end of the first partition 81 is in contact with the exhaust housing 10, and the battery further includes a first blocking member 811, which is connected between the other end of the first partition 81 and the battery housing 30, and is used to fill the gap between the two first sub-spaces. A first receiving groove is provided inside the first blocking member 811, and a potting glue is filled into the first receiving groove. After solidification, the potting glue can withstand a high temperature environment without melting, so that the first blocking member 811 can still achieve a sealed connection with the first partition 81 at a high temperature, which is conducive to enhancing the strength of the first blocking member 811.

[0090] Optionally, an explosion-proof valve 60 is provided on the battery housing 30, and the air outlet channel 72 is connected to the exhaust channel 40 of the battery exhaust assembly and the explosion-proof valve 60. There are multiple explosion-proof valves 60, and at least one explosion-proof valve 60 is located in a single first sub-space, so that each of the two first sub-spaces has at least one explosion-proof valve 60, so that the gas generated in a single first sub-space can only be discharged from the explosion-proof valve 60 in the first sub-space and will not diffuse into another first sub-space, further realizing independent exhaust of multiple battery cells 50 in the first space 31 without affecting each other.

[0091] In one implementation, see Figure 7 and Figure 8 The battery also includes an electrical connector 80, which is disposed in the first partition 81 and passes through the mounting groove 22 of the battery exhaust assembly. The electrical connector 80 is used to electrically connect the battery cells 50 in the first space 31 and the second space 32, so that the battery cells 50 in the first space 31 and the battery cells 50 in the second space 32 are electrically connected, which is beneficial to increase the voltage that the battery can provide.

[0092] The electrical connector 80 is used to electrically connect the battery cells 50 in the first space 31 and the second space 32, so that the battery can provide a higher voltage to the outside. It is understandable that the battery can also include a power distribution component, the number of which can be multiple, and the multiple power distribution components can be respectively accommodated in the first space 31 and the second space 32, and the electrical connector 80 can be used to electrically connect the power distribution components in the first space 31 and the second space 32.

[0093] Optionally, the battery further includes an insulating bracket 90, which is filled in the mounting groove 22. The insulating bracket 90 and the electrical connector 80 are interlaced and connected. The insulating bracket 90 is used to separate the first space 31 and the second space 32, that is, the insulating bracket 90 is used to block the mounting groove 22, so that the insulating bracket 90 and the mounting frame 20 work together to separate the first space 31 and the second space 32. The insulating bracket 90 includes a first insulating bracket 91, which is at least partially accommodated in the mounting groove 22, and is engaged with the exhaust housing 10. The first insulating bracket 91 includes a card slot 92, and the electrical connector 80 passes through the card slot 92 and is engaged with the first insulating bracket 91, so that the electrical connector 80 is connected to the exhaust housing 10 through the card slot 92, so as to limit the position of the electrical connector 80, that is, to limit the angle between the electrical connector 80 and the exhaust housing 10.

[0094] The inner wall of the mounting groove 22 abuts against the outer surface of the first insulating bracket 91, so that there is no gap at the connection between the mounting groove 22 and the first insulating bracket 91, and the gas of the multiple battery cells 50 is prevented from diffusing through the gap between the mounting groove 22 and the first insulating bracket 91. The inner wall of the electrical connector 80 abuts against the inner wall of the card slot 92, so that there is no gap at the connection between the electrical connector 80 and the card slot 92, and the gas of the multiple battery cells 50 is prevented from diffusing through the gap at the connection between the electrical connector 80 and the card slot 92.

[0095] Optionally, the bottom wall of the slot 92 corresponds to the sealing hole 421 of the seal 42 , so that the seal 42 and the electrical connector 80 correspond to each other, which is conducive to making the directions of multiple exhaust paths correspond to the distribution of the battery cells 50 .

[0096] Optionally, the first insulating bracket 91 is completely accommodated in the mounting groove 22 to avoid interference between the portion of the first insulating bracket 91 protruding from the exhaust housing 10 and other structures.

[0097] Optionally, the first insulating bracket 91 further includes two fixing grooves 93, which are located on both sides of the card slot 92 in the conducting direction of the exhaust channel 40, so that the fixing grooves 93 can limit the electrical connector 80, that is, limit the angle between the electrical connector 80 and the exhaust housing 10; at the same time, the mass of the first insulating bracket 91 can be reduced and the cost can be reduced. Optionally, the material of the first insulating bracket 91 is plastic, which is conducive to reducing the mass of the first insulating bracket 91, thereby reducing the mass of the battery, and at the same time, achieving the insulation of the first insulating bracket 91.

[0098] The fixing groove 93 is used to accommodate the potting glue. When the battery cell 50 generates gas, the temperature of the battery cell 50 will increase significantly. At high temperature, the material of the first insulating bracket 91 will cause the first insulating bracket 91 to soften or even melt. After solidifying, the potting glue can withstand the high temperature environment without melting, so that the first insulating bracket 91 can still support and limit the electrical connector 80 at high temperature, which is beneficial to enhance the strength of the fixing groove 93.

[0099] The side wall of the fixing groove 93 has a certain thickness, so as to reduce the mass of the first insulating support 91 while ensuring the strength of the fixing groove 93. When the side wall thickness of the fixing groove 93 is small, the mass of the fixing groove 93 is small, so that the mass of the first insulating support 91 is small, which is conducive to reducing the mass of the battery; when the side wall thickness of the fixing groove 93 is large, the strength of the fixing groove 93 is large, which is conducive to realizing the supporting and limiting functions of the fixing groove 93 on the electrical connector 80.

[0100] The fixing groove 93 can also be used to accommodate other fixing materials, so that the fixing groove 93 can still achieve the support and limit function of the electrical connector 80 in a high temperature environment.

[0101] Optionally, the battery also includes a second insulating bracket 94, which is snap-connected with the first insulating bracket 91, and abuts against the electrical connector 80. The second insulating bracket 94 closes the openings of the card slot 92 and the fixed slot 93, so that the second insulating bracket 94 blocks the potting glue from flowing out of the opening of the fixed slot 93, so that the potting glue is always contained in the fixed slot 93 before solidifying; at the same time, the second insulating bracket 94 closes the card slot 92, and part of the second insulating bracket 94 fits with the surface of the electrical connector 80, so that the second insulating bracket 94 can limit the electrical connector 80, that is, limit the angle between the electrical connector 80 and the exhaust shell 10.

[0102] Optionally, the first insulating bracket 91 has a buckle, and the second insulating bracket 94 has a clamping hole, and the buckle and the clamping hole are clamped and connected.

[0103] In one implementation, see Figure 7 and Figure 8 The battery further includes a second separator 82, which is disposed in the second space 32 and divides the second space 32 into at least two second sub-spaces, and the plurality of battery cells 50 are respectively accommodated in the first sub-space and the second sub-space.

[0104] The second partition 82 is sealed and connected to the inner wall of the battery casing 30, so that the gas generated by the battery cells 50 on one side of the seal 42 in the second space 32 can only be discharged through the second air inlet 12 on this side and will not diffuse to the other side of the seal 42, further realizing independent exhaust of multiple battery cells 50 in the second space 32 without affecting each other.

[0105] Optionally, one end of the second partition 82 abuts against the exhaust housing 10, and the battery further includes a second plugging member 821, which is connected between the other end of the second partition 82 and the battery housing 30, and is used to fill the gap between the two second sub-spaces. A second receiving groove is provided inside the second plugging member 821, and a potting glue is filled into the second receiving groove. After solidification, the potting glue can withstand a high temperature environment without melting, so that the second plugging member 821 can still achieve a sealed connection with the second partition 82 at a high temperature, which is conducive to enhancing the strength of the second plugging member 821.

[0106] Optionally, an explosion-proof valve 60 is provided on the battery housing 30, and the air outlet channel 72 is connected to the exhaust channel 40 of the battery exhaust assembly and the explosion-proof valve 60. There are multiple explosion-proof valves 60, and at least one explosion-proof valve 60 is located in a single second sub-space, so that each of the two second sub-spaces has at least one explosion-proof valve 60, so that the gas generated in a single second sub-space can only be discharged from the explosion-proof valve 60 in the second sub-space and will not diffuse into another second sub-space, further realizing independent exhaust of multiple battery cells 50 in the second space 32 without affecting each other.

[0107] The utility model also provides an electrical device, see Figure 7 , including a battery according to any one of the above embodiments. Optionally, the electrical device is a vehicle, and the battery is used to drive the vehicle.

[0108] It can be understood that the electrical equipment in this embodiment has the battery in the above embodiment. Therefore, the electrical equipment in this embodiment has all the technical effects of the battery in the above embodiment. Since the technical effects of the battery have been fully explained in the above embodiment, they will not be repeated here.

[0109] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0110] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A battery exhaust assembly, characterized in that: The device is used to be accommodated in a battery housing and to separate the interior of the battery housing into a first space and a second space, comprising: An exhaust housing enclosed to form an exhaust passage, the exhaust housing having a first air inlet hole and a second air inlet hole, the first air inlet hole and the second air inlet hole both being in communication with the exhaust passage; a first dividing rib, accommodated in the exhaust channel, the first dividing rib dividing the exhaust channel into a first sub-channel and a second sub-channel, the first air inlet hole connecting the first space and the first sub-channel, and the second air inlet hole connecting the second space and the second sub-channel; A sealing member is at least partially accommodated in the first sub-channel, and the sealing member divides the first sub-channel into at least two first sub-channels, at least two of the first sub-channels are connected to the first air inlet, and at least two of the first sub-channels and the second sub-channel are used to communicate with the outside of the battery housing.

2. The battery exhaust assembly according to claim 1, characterized in that: The sealing member divides the second sub-channel into at least two secondary sub-channels, and the sealing member is used to simultaneously divide the first sub-channel and the second sub-channel.

3. The battery exhaust assembly according to claim 1, wherein: There are multiple first air inlet holes, and the multiple first air inlet holes are arranged at intervals in the extension direction of the first dividing rib. The extension direction of the first dividing rib is the same as the conduction direction of the first sub-channel and the second sub-channel.

4. The battery exhaust assembly according to claim 1, wherein: An arrangement direction of the first sub-channel and the second sub-channel is parallel to an arrangement direction of the first space and the second space.

5. The battery exhaust assembly according to claim 1, wherein: The first sub-channel and the second sub-channel are stacked and arranged in a direction perpendicular to a conducting direction of the exhaust channel.

6. The battery vent assembly according to claim 1, wherein: The battery exhaust assembly also includes a mounting frame, which is connected to the exhaust shell, and has a plurality of mounting portions, which are arranged at intervals in the extension direction of the mounting frame, and the extension direction of the mounting frame is the same as the conducting direction of the exhaust channel, and the mounting portion is used for installation with the battery shell.

7. The battery exhaust assembly according to claim 6, wherein: The mounting frame, the first sub-channel and the second sub-channel are sequentially stacked and arranged in a direction perpendicular to a conducting direction of the exhaust channel.

8. The battery vent assembly according to claim 1, wherein: The battery exhaust assembly also includes a mounting frame, which is connected to the exhaust housing, and has a mounting groove, which connects the first space and the second space, and is used to pass an electrical connector.

9. The battery vent assembly according to claim 8, wherein: The bottom wall of the mounting groove has a sealing hole, the sealing hole is connected to the exhaust channel, and the sealing member closes the sealing hole.

10. A battery, characterized in that: It comprises a battery cell, a battery shell and a battery exhaust assembly according to any one of claims 1 to 9, wherein the battery exhaust assembly is accommodated in the battery shell and divides the interior of the battery shell into a first space and a second space, the number of the battery cells is at least two, and at least two of the battery cells are accommodated in the first space and the second space respectively; at least two of the first sub-channels and the second sub-channels are connected to the outside of the battery shell.

11. The battery according to claim 10, characterized in that The battery housing includes side beams, the number of which is at least two, and an air outlet channel is provided inside the side beam. The air outlet channel is respectively connected to the first branch channel and the second branch channel, and the air outlet channel is used to communicate with the outside of the battery housing.

12. The battery according to claim 11, characterized in that The side beam is provided with a reinforcing rib, the reinforcing rib is located inside the air outlet channel, and the extending direction of the reinforcing rib is parallel to the conducting direction of the air outlet channel.

13. The battery according to claim 11, characterized in that An explosion-proof valve is provided on the battery housing, and the gas outlet channel is connected to the exhaust channel of the battery exhaust assembly and the explosion-proof valve, so that the gas in the first space and the second space is discharged from the exhaust channel, the gas outlet channel and the explosion-proof valve in sequence.

14. The battery according to claim 13, characterized in that The battery further includes a first separator, which is disposed in the first space and divides the first space into at least two first sub-spaces. There are a plurality of battery cells, which are respectively accommodated in the first sub-spaces and the second space.

15. The battery according to claim 14, characterized in that One end of the first partition is in contact with the exhaust shell, and the battery further comprises a first blocking member connected between the other end of the first partition and the battery shell, and the first blocking member is used to fill the gap between the two first sub-spaces.

16. The battery according to claim 15, characterized in that The battery housing is provided with an explosion-proof valve, the gas outlet channel is connected with the exhaust channel of the battery exhaust assembly and the explosion-proof valve, there are multiple explosion-proof valves, and at least one explosion-proof valve is located in a single first sub-space.

17. The battery according to claim 14, characterized in that The battery further includes an electrical connector, which is disposed in the first partition and passes through a mounting slot of the battery exhaust assembly, and is used to electrically connect the battery cells in the first space and the second space.

18. The battery according to claim 17, characterized in that The battery further includes an insulating bracket, which is disposed in the mounting groove, the insulating bracket is interlaced and connected with the electrical connector, and the insulating bracket is used to separate the first space and the second space.

19. The battery according to claim 14, characterized in that The battery further includes a second separator, which is disposed in the second space and divides the second space into at least two second sub-spaces, and the plurality of battery cells are respectively accommodated in the first sub-spaces and the second sub-spaces.

20. The battery according to claim 19, characterized in that One end of the second partition is in contact with the exhaust shell, and the battery further comprises a second blocking member connected between the other end of the second partition and the battery shell, and the second blocking member is used to fill the gap between the two first sub-spaces.

21. The battery according to claim 20, characterized in that The battery housing is provided with a plurality of explosion-proof valves, the gas outlet channel is connected with the exhaust channel of the battery exhaust assembly and the explosion-proof valves, at least one explosion-proof valve is located in a single first sub-space, and at least one explosion-proof valve is located in a single second sub-space.

22. An electrical equipment, characterized in that: Comprising a battery according to any one of claims 10 to 21.

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