CN211670237U

CN211670237U - Battery module

Info

Publication number: CN211670237U
Application number: CN202020345588.5U
Authority: CN
Inventors: 李凡; 党奎; 黄莹; 江吉兵; 刘金成
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-10-13
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a battery module, which comprises a battery unit, connect the aluminium row and set up the module support of battery unit upper end, the battery unit includes two at least battery monomers of arranging the setting, the module support includes two at least support bodies along first direction interval distribution, a support body protrusion in two adjacent support bodies is provided with the buckle convex part, the buckle convex part sets up towards the first direction protrusion, another support body is concave to be equipped with buckle convex part complex buckle position, buckle position all is provided with first joint at two lateral walls of second direction and colludes, the buckle convex part all is provided with the second joint at the both ends of second direction and colludes, first direction is the free range orientation of battery, the second direction is perpendicular with first direction and vertical direction respectively, the second joint colludes with first joint and colludes the cooperation and colludes, it sets up in the free one side of battery that deviates from at the support body to connect the aluminium row. The battery module is flexible to assemble and low in cost.

Description

Battery module

Technical Field

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

Background

With the rapid development of electronic technology, the application field of battery modules is also wider and wider. Generally, battery module is including a plurality of battery monomer, aluminium row and module support, and a plurality of battery monomer set up side by side, and the module support sets up in the free upper end of battery, and the free electrode terminal of each battery is connected in order to realize the free series connection of each battery to the aluminium row, the aluminium row is located the one side that deviates from the battery monomer between the module support.

However, the conventional battery module has the following disadvantages: the structure commonality of module support is relatively poor, and along with the increase and decrease of battery monomer quantity in the battery module, the structure of module support also needs the renewal design, has increased the research and development and the manufacturing cost of module support, has also prolonged the development cycle of battery module.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: a battery module is provided, which is flexible in assembly and low in cost.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the battery module comprises a battery unit, a connecting aluminum bar and a module support arranged at the upper end of the battery unit, wherein the module support is an insulator, the battery unit comprises at least two battery monomers arranged in a row, the module support comprises at least two support bodies distributed at intervals along a first direction, one of the two adjacent support bodies is provided with a buckle convex part, the buckle convex part is arranged in a protruding way towards the first direction, the other support body of the two adjacent support bodies is concavely provided with a buckle position matched with the buckle convex part, two side walls of the buckle position in a second direction are respectively provided with a first buckle hook, two ends of the buckle convex part in the second direction are respectively provided with a second buckle hook, the first direction is the arrangement direction of the battery monomers, and the second direction is respectively vertical to the first direction and the vertical direction, the second clamping hook is matched with the first clamping hook in a hooking mode, and the connecting aluminum bar is arranged on one side, deviating from the battery monomer, of the support body.

As a preferable scheme of the battery module, at least two buckling protrusions and at least two buckling positions are arranged, and each buckling protrusion and each buckling position are respectively distributed at intervals in the second direction.

As a preferred scheme of the battery module, the end part of the first clamping hook and the end part of the second clamping hook are both provided with a chamfer structure.

As a preferable scheme of the battery module, one end of one of the two support bodies hooked with each other is convexly provided with a limiting groove, one end of the other support body is concavely provided with a limiting convex part, an opening of the limiting groove faces the limiting convex part, and the limiting convex part is used for being matched and spliced with the limiting groove.

As a preferred scheme of battery module, the support body deviates from free one side of battery is provided with two at least first mounting grooves and two at least second mounting grooves respectively, two at least first mounting groove and two at least the second mounting groove all along first direction interval distribution, first mounting groove with the second mounting groove is in interval difference in the second direction, first mounting groove with install respectively in the second mounting groove connect the aluminium row, the tank bottom of first mounting groove with the tank bottom of second mounting groove all corresponds and has seted up the through-hole, free electrode of battery end corresponds and runs through the through-hole to correspond with connect the aluminium row and connect.

As a preferred scheme of the battery module, two adjacent first mounting grooves and two adjacent second mounting grooves are provided with positioning convex parts in a protruding manner, and the connecting aluminum row is provided with positioning grooves matched with the positioning convex parts in a concave manner corresponding to the positioning convex parts.

As a preferable mode of the battery module, two end portions of each bracket body in the first direction are provided with a partition plate, and the partition plates are arranged to protrude toward one side surface departing from the battery cells.

As a preferred scheme of battery module, first mounting groove with the second mounting groove is in the cell wall of second direction all protrudes and is provided with the retaining member, the retaining member orientation the direction protrusion of connecting the aluminium row is provided with locking portion, locking portion orientation one side of retaining member has the step face.

As a preferable mode of the battery module, the locking part is provided with a first guide surface inclined from the upper end to the lower end of the locking member toward the through-hole.

As a preferred scheme of battery module, including the protective cover board, the protective cover board includes the apron body, the both sides of apron body have the extension board respectively, the apron body with the extension board is perpendicular, the apron body lid is established the module support deviates from free one side of battery, the buckle hole has been seted up to the extension board, the protrusion is provided with two sets of locking buckles on the support body, and is two sets of locking buckle is in second direction interval distribution, first mounting groove with the second mounting groove all is located two sets ofly between the locking buckle, and each locking buckle corresponds the card and establishes in the buckle hole.

The utility model has the advantages that: the first clamping and the second clamping are clamped in a matched mode, so that the adjacent two support bodies can be detachably connected. The support body passes through foretell design, can be according to the nimble quantity that increases and decreases the support body of battery monomer series connection quantity or parallelly connected quantity when specifically assembling formation module support, need not use screw assembly or bolt assembly can realize two adjacent support body coupling assembling at whole module support, and simple structure just makes things convenient for the dismouting, is favorable to reducing battery module research and development and manufacturing cost, has shortened the research and development cycle of battery module greatly.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of an angle of a stent body according to an embodiment.

Fig. 2 is a schematic structural view of another angle of the stent body according to the embodiment.

Fig. 3 is a schematic assembly diagram of two adjacent bracket bodies according to the embodiment.

Fig. 4 is an assembly diagram of the aluminum row, the protective cover plate and the module bracket according to the embodiment.

Fig. 5 is an exploded view illustrating a battery module according to an embodiment of the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 1.

Fig. 7 is a schematic structural diagram of the protective cover plate according to the embodiment.

In the figure:

1. a stent body; 101. a partition plate; 102. a through hole; 103. a snap projection; 104. a second clamping hook; 105. a buckling position; 106. a first clamping hook; 107. a locking member; 108. a limiting convex part; 109. a first mounting groove; 110. a second mounting groove; 111. a locking portion; 112. a first guide surface; 113. locking the buckle; 114. a second guide surface; 115. a third guide surface; 116. a limiting plate; 117. a weight-reducing channel; 118. a positioning projection;

2. connecting the aluminum row; 201. a positioning groove;

3. a protective cover plate; 301. a snap-in hole; 302. a cover plate body; 303. an extension plate;

4. a battery cell; 401. a battery cell; 402. a positive terminal; 403. and a negative terminal.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 7, in the present embodiment, the present invention provides a battery module, which includes a battery unit 4, a module bracket connected to the aluminum row 2 and disposed on the upper end of the battery unit 4, wherein the module bracket is an insulator. The battery unit 4 includes at least two battery cells 401 arranged in a row, and the module holder includes at least two holder bodies 1 spaced apart from each other along the first direction. One of the adjacent two bracket bodies 1 is provided with a snap projection 103, and the snap projection 103 is convexly provided toward the first direction. The other bracket body 1 of the two adjacent bracket bodies 1 is concavely provided with a buckling position 105 matched with the buckling convex part 103. The side wall of the buckle position 105 in the second direction is provided with a first buckle hook 106, the two ends of the buckle protrusion 103 in the second direction are provided with second buckle hooks 104, and the second buckle hooks 104 are matched and hooked with the first buckle hooks 106. Specifically, the first direction is an arrangement direction of the battery cells 401, and the second direction is perpendicular to the first direction and the vertical direction, respectively. The connecting aluminum bar 2 is arranged on one side of the bracket body 1, which is far away from the battery cell 401. Referring to fig. 5, the Y direction is a first direction, the X direction is a second direction, and the Z direction is a vertical direction.

In this embodiment, the detachable connection of two adjacent stent bodies 1 is realized by the matching clamping of the first clamping hook 106 and the second clamping hook 104. Support body 1 can be according to the nimble quantity that increases and decreases support body 1 of battery monomer 401 series connection quantity or parallelly connected quantity when specifically assembling formation module support through foretell design, need not use screw assembly or bolt assembly to realize adjacent two support body 1 and connect assembling at whole module support, and simple structure just makes things convenient for the dismouting, is favorable to reducing battery module research and development and manufacturing cost, has shortened the research and development cycle of battery module greatly. In addition, because the first clamping hook 106 is arranged on the clamping position 105 in the second direction, the connection strength between two adjacent support bodies 1 is ensured, and the reliability of the module support connection is improved.

In this embodiment, at least two buckling protrusions 103 and at least two buckling positions 105 are arranged, and each buckling protrusion 103 and each buckling position 105 are respectively distributed at intervals in the second direction. Because buckle convex part 103 and buckle position 105 all are provided with at least two, increase the hook joint position of two adjacent support bodies 1, further strengthen the connection structure between two adjacent support bodies 1.

In this embodiment, the fastening protrusion 103 and the fastening position 105 are both disposed at the end of the bracket body 1, and the first fastening hook 106 and the second fastening hook 104 are engaged with each other to connect the two ends of the bracket body 1.

In order to improve the assembly efficiency of the module support, the end part of the first clamping hook 106 and the end part of the second clamping hook 104 are both provided with a chamfer structure, and in the design, when the first clamping hook 106 and the second clamping hook 104 hook, the first clamping hook 106 and the second clamping hook 104 can be hooked in place quickly due to the chamfer structure, so that the assembly efficiency of the module support is improved.

One end of one support body 1 of the two support bodies 1 hooked with each other is convexly provided with a limiting groove (not shown in the figure), one end of the other support body 1 is concavely provided with a limiting convex part 108, the opening of the limiting groove faces the limiting convex part 108, and the limiting convex part 108 is in matched splicing with the limiting groove. The limiting convex part 108 is inserted into the limiting groove, so that the two mutually hooked bracket bodies 1 can be prevented from moving relatively in the vertical direction (i.e. the Z direction) of the single battery 401.

In this embodiment, the same end of the same stent body 1 is provided with two limiting protrusions 108 at intervals, and the same end of the same stent body 1 is provided with two limiting grooves at intervals. It will be appreciated that in other embodiments, the number of retaining protrusions 108 and retaining grooves on the same end of the rack body may be flexibly set.

In another embodiment, one end of the bracket body 1 may be provided with the limiting convex part 108 and the limiting groove at the same time, and the limiting convex part 108 and the limiting groove are distributed at intervals in the second direction.

One side that support body 1 deviates from battery cell 401 is provided with two at least first mounting grooves 109 and two at least second mounting grooves 110 respectively, two at least first mounting grooves 109 and two at least second mounting grooves 110 all set up along the first direction interval, first mounting groove 109 and second mounting groove 110 are along second direction interval distribution, install respectively in first mounting groove 109 and the second mounting groove 110 and connect aluminium row 2, through-hole 102 has all been seted up to the tank bottom of first mounting groove 109 and the tank bottom of second mounting groove 110, battery cell 401's electrode end corresponds through-hole 102, and correspond and be connected aluminium row 2 and be connected. In this embodiment, the electrode terminals of the battery cells 401 include positive terminals 402 and negative terminals 403, the positive terminals 402 and the negative terminals 403 are respectively disposed at the upper ends of the battery cells 401, the aluminum row connecting 2 in the first mounting groove 109 and the aluminum row connecting 2 in the second mounting groove 110 respectively correspond to the positive terminals 402 and the negative terminals 403, the aluminum row connecting 2 is used for connecting the positive terminals 402 or the negative terminals 403 of the battery cells 401, so that the battery cells 401 are connected in series or in parallel, it can be understood that the aluminum row connecting 2 in the first mounting groove 109 and the aluminum row connecting 2 in the second mounting groove 110 are respectively disposed at intervals. The aluminum bar 2 is mounted in the first mounting groove 109 and the second mounting groove 110, respectively, to prevent the aluminum bar 2 from protruding out of the bracket body 1.

In order to position the aluminum busbar 2, in this embodiment, a positioning protrusion 118 is convexly disposed between two adjacent first mounting grooves 109 and two adjacent second mounting grooves 110, a positioning groove 201 matched with the positioning protrusion 118 is concavely disposed on the aluminum busbar 2 corresponding to the positioning protrusion 118, and the positioning groove 201 is inserted into the positioning protrusion 118, so that the aluminum busbar 2 can be mounted in place, and the aluminum busbar 2 can be prevented from being displaced along the length direction of the battery unit 4.

In one embodiment, the two ends of each bracket body 1 in the first direction are provided with the partition plates 101, and the partition plates 101 are protruded toward one side surface facing away from the battery cells 401. In the bracket body 1 having such a structure, on the one hand, the structural strength of both end portions of the bracket body 1 is increased by the partition plate 101; on the other hand, when the two bracket bodies 1 are hooked to each other, the adjacent two partition plates 101 abut against each other and partition the two first mounting grooves 109 or the two second mounting grooves 110 near the end portions of the bracket bodies 1.

In another embodiment, the locking member 107 is protrudingly provided on the groove wall of each of the first mounting groove 109 and the second mounting groove 110 in the second direction, the locking member 107 is protrudingly provided with a locking portion 111 toward the direction of connecting the aluminum row 2, and the locking portion 111 has a stepped surface toward a side with the locking member 107. After connecting aluminium row 2 and corresponding installation first mounting groove 109 or second mounting groove 110, can lock in this step face connecting aluminium row 2, prevent to connect aluminium row 2 and remove in first mounting groove 109 or second mounting groove 110, improved the reliability of connecting aluminium row 2 and battery cell 401's electrode end and being connected, do not need screw subassembly or bolt assembly to lock connecting aluminium row 2.

Further, the locking portion 111 is provided with a first guide surface 112, and the first guide surface 112 is inclined toward the through hole 102 from the upper end to the lower end of the locking member 107. The connecting aluminum bar 2 can be lowered from the upper end of the locker 107 by the first guide surface 112, and the connecting aluminum bar 2 is guided into the first and second mounting

grooves

109 and 110 along the inclined surfaces by the first guide surface 112, which facilitates the mounting of the connecting aluminum bar 2.

In this embodiment, the groove wall of the first mounting groove 109 and the groove wall of the second mounting groove 110 are spaced apart, a weight-reducing channel 117 is formed between the groove wall of the first mounting groove 109 and the groove wall of the second mounting groove 110, and the weight-reducing channel 117 is formed between the groove wall of the first mounting groove 109 and the groove wall of the second mounting groove 110, so as to reduce the weight of the bracket body 1 as much as possible, which is beneficial to saving the manufacturing material of the bracket body 1.

In this embodiment, the battery module further includes a protective cover plate 3, the protective cover plate 3 includes a cover plate body 302, two sides of the cover plate body 302 are respectively provided with an extending plate 303, and the cover plate body 302 is perpendicular to the extending plates 303. The cover plate body 302 covers the side of the module bracket departing from the battery cell 401, and the extension plate 303 is provided with a buckling hole 301. The support body 1 is convexly provided with two groups of locking buckles 113, the two groups of locking buckles 113 are distributed at intervals in the second direction, the first mounting groove 109 and the second mounting groove 110 are both positioned between the two groups of locking buckles 113, and the locking buckles 113 are correspondingly clamped in the buckling holes 301. The protective cover plate 3 is mainly used for fixing and hiding the connecting aluminum bar 2 between the protective cover plate 3 and the module bracket, and corresponds to the buckle in the buckle hole 301 through the locking buckle 113 so as to lock the protective cover plate 3 and the bracket body 1, and the protective cover plate 3 and the bracket body 1 are convenient to disassemble and assemble due to the design.

In order to reduce the difficulty of the locking buckle 113 in being clamped inside the buckle hole 301, the upper end of the locking buckle 113 is provided with a second guide surface 114, the second guide surface 114 inclines from top to bottom towards the direction away from the aluminum row 2, and when the protective cover plate 3 is connected with the bracket body 1, the second guide surface 114 interacts with the hole wall of the buckle hole 301, so that the locking buckle 113 can be guided to rapidly enter the movable buckle hole 301.

It can be understood that each group of locking buckles 113 is provided with a plurality of locking buckles 113, the locking buckles 113 are distributed at intervals along the length direction of the battery unit 4, the buckling holes 301 correspond to the locking buckles 113 one by one, and the locking force of the bracket body 1 of the protective cover plate 3 is enhanced through the matching of the locking buckles 113 and the buckling holes 301.

The position of the bracket body 1 adjacent to the locking buckle 113 is convexly provided with a limiting plate 116, the limiting plate 116 and the locking buckle 113 are arranged at intervals, and the distance between the limiting plate 116 and the locking buckle 113 is smaller than the thickness of the extending plate 303. The stopper plate 116 is provided mainly to prevent the lock catch 113 from being disengaged from the catch hole 301. Preferably, the upper end of the stopper plate 116 has a third guide surface 115, and the third guide surface 115 is inclined from the upper end to the lower end of the stopper plate 1 toward the direction in which the aluminum row 2 is connected. When the protective cover is specifically installed, the extension plate 303 is inserted into the gap between the locking buckle 113 and the limiting plate 116 by using an external force, and the installation difficulty of the protective cover plate 3 is further reduced due to the presence of the third guide surface 115.

In the description herein, it is to be understood that the terms "first" and "second" are used merely for descriptive purposes and are not to be construed as specifically limiting.

It should be noted that the above embodiments are only preferred embodiments of the present invention and the technical principles applied, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention.

Claims

1. A battery module is characterized by comprising a battery unit, a connecting aluminum bar and a module support arranged at the upper end of the battery unit, wherein the module support is an insulator, the battery unit comprises at least two battery monomers arranged and arranged, the module support comprises at least two support bodies distributed at intervals along a first direction, one of the two adjacent support bodies is provided with a buckle convex part, the buckle convex part is arranged towards the first direction in a protruding manner, the other support body of the two adjacent support bodies is concavely provided with a buckle position matched with the buckle convex part, two side walls of the buckle position in a second direction are respectively provided with a first buckle hook, the two ends of the buckle convex part in the second direction are respectively provided with a second buckle hook, the first direction is the arrangement direction of the battery monomers, and the second direction is respectively vertical to the first direction and the vertical direction, the second clamping hook is matched with the first clamping hook in a hooking mode, and the connecting aluminum bar is arranged on one side, deviating from the battery monomer, of the support body.

2. The battery module according to claim 1, wherein at least two snap protrusions and at least two snap positions are provided, and each of the snap protrusions and each of the snap positions are spaced apart in the second direction.

3. The battery module as claimed in claim 1, wherein the end of the first clamping hook and the end of the second clamping hook are provided with a chamfer structure.

4. The battery module according to claim 1, wherein one end of one of the two bracket bodies hooked to each other is provided with a protruding limiting groove, one end of the other bracket body is provided with a protruding limiting protrusion, an opening of the protruding limiting groove faces the protruding limiting protrusion, and the protruding limiting protrusion is used for being matched and plugged with the protruding limiting groove.

5. The battery module according to claim 1, wherein at least two first mounting grooves and at least two second mounting grooves are respectively formed in one side of the bracket body facing away from the battery cell, the at least two first mounting grooves and the at least two second mounting grooves are respectively distributed at intervals along the first direction, the first mounting grooves and the second mounting grooves are respectively arranged at intervals in the second direction, the aluminum connecting bars are respectively mounted in the first mounting grooves and the second mounting grooves, through holes are correspondingly formed in the bottoms of the first mounting grooves and the bottoms of the second mounting grooves, and the electrode end of the battery cell correspondingly penetrates through the through holes and is correspondingly connected with the aluminum connecting bars.

6. The battery module according to claim 5, wherein a positioning protrusion is convexly disposed between each two adjacent first mounting grooves and each two adjacent second mounting grooves, and a positioning groove matched with the positioning protrusion is concavely disposed on the connecting aluminum row corresponding to the positioning protrusion.

7. The battery module according to any one of claims 1 to 6, wherein each of the holder bodies is provided at both ends in the first direction with a partition plate that is provided to protrude toward a side that faces away from the battery cell.

8. The battery module according to claim 5, wherein a locking member is protrudingly provided on each of walls of the first and second mounting grooves in the second direction, the locking member is protrudingly provided with a locking portion in a direction toward the aluminum busbar, and a side of the locking portion facing the locking member has a stepped surface.

9. The battery module according to claim 8, wherein the locking part is provided with a first guide surface that is inclined from the upper end to the lower end of the locking member toward the direction of the through-hole.

10. The battery module according to claim 5, comprising a protective cover plate, wherein the protective cover plate comprises a cover plate body, extension plates are respectively arranged on two sides of the cover plate body, the cover plate body is perpendicular to the extension plates, the cover plate body covers a side of the module support facing away from the battery cell, the extension plates are provided with buckle holes, the support body is convexly provided with two sets of locking buckles, the two sets of locking buckles are distributed at intervals in the second direction, the first mounting groove and the second mounting groove are both located between the two sets of locking buckles, and each locking buckle is correspondingly buckled in the buckle hole.