CN108832039B - Aluminum shell cell fixing support - Google Patents

Aluminum shell cell fixing support Download PDF

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Publication number
CN108832039B
CN108832039B CN201810639336.0A CN201810639336A CN108832039B CN 108832039 B CN108832039 B CN 108832039B CN 201810639336 A CN201810639336 A CN 201810639336A CN 108832039 B CN108832039 B CN 108832039B
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CN
China
Prior art keywords
fixing
battery cell
plate
lock catch
top cover
Prior art date
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Application number
CN201810639336.0A
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Chinese (zh)
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CN108832039A (en
Inventor
樊晓蓉
韩翔
刘巍巍
陈文�
赵笑辰
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Beijing Linkdata Technologies Co ltd
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Beijing Linkdata Technologies Co ltd
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Priority to CN201810639336.0A priority Critical patent/CN108832039B/en
Publication of CN108832039A publication Critical patent/CN108832039A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention provides an aluminum shell battery cell fixing bracket which comprises a plurality of aluminum shell battery cell fixing bracket units connected through lock catches; each aluminum shell battery cell fixing support unit is used for installing and fixing a lithium battery cell; each aluminum shell cell fixing support unit comprises a base, a top cover, a left support cover plate and a right support cover plate. The advantages are that: 1. the structure is light, the battery core can be fixed, and the heat dissipation of the battery core is convenient; 2. the connection is stable, the base and the top cover are provided with the lock catches, the lock catches are distributed on four surfaces, and the adjacent brackets can be closely connected together without being scattered; 3. wiring grooves are reserved on the bracket cover plate, and wiring harnesses are reasonably arranged; 4. the flame-retardant cover plate is added to separate the positive and negative electrode posts of the battery core from external electric parts, so that the positive and negative electrodes are prevented from being short-circuited, and a good insulating effect is achieved; 5, the maintainability is strong, when a certain cell in the battery pack breaks down, the cover plate can be vertically dismounted to replace the cell, so that the stability of the battery pack is greatly improved, the safety is greatly improved, and the maintainability is greatly enhanced.

Description

Aluminum shell cell fixing support
Technical Field
The invention belongs to the technical field of communication lithium batteries, and particularly relates to an aluminum shell battery cell fixing bracket.
Background
The lithium battery pack is widely applied to the field of communication base station standby power as a reliable standby power supply, and is composed of lithium battery cells with different numbers according to a certain serial-parallel connection mode. In practical use, the lithium battery core is required to have good consistency, each component has reliable quality and stable connection.
The reason that lithium cell group breaks down mainly is that some or some lithium cell are inefficacy, and not all lithium cells damage, but because lithium cell group generally uses the integration support, dismantle inconvenient or unable dismantlement, so the trouble can only be scrapped the processing of whole group, causes the waste of resource and cost.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the aluminum shell cell fixing bracket which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides an aluminum shell battery cell fixing bracket which comprises a plurality of aluminum shell battery cell fixing bracket units connected through lock catches; each aluminum shell battery cell fixing support unit is used for installing and fixing a lithium battery cell (5); each aluminum shell cell fixing support unit comprises a base (1), a top cover (2), a left support cover plate (3) and a right support cover plate (4);
the base (1) comprises a rectangular bottom plate (1.1) and a base frame body (1.2) formed on the periphery of the bottom plate (1.1), wherein the shape and the size of the base frame body (1.2) are matched with those of the bottom of a lithium battery cell (5) to be fixed, so that the bottom of the lithium battery cell (5) is clamped and fixed in the base frame body (1.2); the front side plate of the base frame body (1.2) is provided with at least one 1 st male lock catch (1.3), the rear side plate of the base frame body (1.2) is provided with at least one 1 st female lock catch (1.4) matched with the 1 st male lock catch (1.3), the left side plate of the base frame body (1.2) is provided with at least one 2 nd female lock catch (1.5), and the right side plate of the base frame body (1.2) is provided with at least one 2 nd male lock catch (1.6) matched with the 2 nd female lock catch (1.5); the base of the aluminum shell battery cell fixing bracket unit is fixedly connected with the base of the adjacent front and rear aluminum shell battery cell fixing bracket unit through the plug-in connection of the 1 st male lock catch (1.3) and the 1 st female lock catch (1.4); the base of the aluminum shell battery cell fixing bracket unit is fixedly connected with the base of the adjacent left and right aluminum shell battery cell fixing bracket units in a plugging manner through the plugging and fixing of the 2 nd female lock catch (1.5) and the 2 nd male lock catch (1.6);
the top cover (2) comprises a top plate (2.1) and a top cover frame body (2.2) arranged below the periphery of the top plate (2.1), the shape and the size of the top cover frame body (2.2) are matched with those of the top of the lithium battery cell (5) to be fixed, and the top cover frame body (2.2) is sleeved on the top of the lithium battery cell (5); a 3 rd female lock catch (2.3) is arranged on the left side frame of the top cover frame body (2.2), a 3 rd male lock catch (2.4) matched with the 3 rd female lock catch (2.3) is arranged on the right side frame of the top cover frame body (2.2), and the 3 rd female lock catch (2.3) and the 3 rd male lock catch (2.4) are fixedly connected in a plugging manner, so that the top cover of the aluminum shell battery cell fixing bracket unit is fixedly connected with the top cover of the adjacent left and right side aluminum shell battery cell fixing bracket units in a plugging manner; a 4 th male lock catch (2.5) is arranged on the front side frame of the top cover frame body (2.2), a 4 th female lock catch (2.6) matched with the 4 th male lock catch (2.5) is arranged on the rear side frame of the top cover frame body (2.2), and the 4 th male lock catch (2.5) and the 4 th female lock catch (2.6) are fixedly connected in a plugging manner, so that the top cover of the aluminum shell battery cell fixing bracket unit is fixedly connected with the top cover of the adjacent front and rear side aluminum shell battery cell fixing bracket unit in a plugging manner;
negative plate fixing clamping grooves (2.7) and positive plate fixing clamping grooves (2.8) are respectively formed in the left side and the right side of the top plate (2.1), the negative plate fixing clamping grooves (2.7) and the positive plate fixing clamping grooves (2.8) are respectively matched with a negative plate (5.1) and a positive plate (5.2) at the top of the lithium battery cell (5), so that the negative plate fixing clamping grooves (2.7) are clamped outside the negative plate (5.1), and the positive plate fixing clamping grooves (2.8) are clamped outside the positive plate (5.2); the 1 st trapezoid corner protector (2.9) and the 2 nd trapezoid corner protector (2.10) are fixedly installed on the front side and the rear side of the negative plate fixing clamping groove (2.7), the 1 st trapezoid corner protector (2.9) is provided with a 1 st fixing hole (2.9.1), and the 2 nd trapezoid corner protector (2.10) is provided with a 2 nd fixing hole (2.10.1); the 3 rd trapezoid corner protector (2.11) and the 4 th trapezoid corner protector (2.12) are fixedly installed on the front side and the rear side of the positive plate fixing clamping groove (2.8), the 3 rd trapezoid corner protector (2.11) is provided with a 3 rd fixing hole (2.11.1), and the 4 th trapezoid corner protector (2.12) is provided with a 4 th fixing hole (2.12.1);
a lithium battery cell explosion-proof valve fixing clamping groove (2.17) is formed in the center position of the top plate (2.1), the lithium battery cell explosion-proof valve fixing clamping groove (2.17) is matched with a lithium battery cell explosion-proof valve (5.3) at the top of the lithium battery cell (5), and the lithium battery cell explosion-proof valve fixing clamping groove (2.17) is clamped outside the lithium battery cell explosion-proof valve (5.3); a left security block (2.13) and a right security block (2.14) are fixedly arranged at the left side and the right side of the lithium battery core explosion-proof valve fixing clamping groove (2.17);
the bottom of the left bracket cover plate (3) is provided with a 1 st fixed column (3.1) and a 2 nd fixed column (3.2); the 1 st fixing column (3.1) is inserted into the 1 st fixing hole (2.9.1), the 2 nd fixing column (3.2) is inserted into the 2 nd fixing hole (2.10.1), and then the left bracket cover plate (3) is mounted above the left side of the top cover (2);
the bottom of the right bracket cover plate (4) is provided with a 3 rd fixed column and a 4 th fixed column; the 3 rd fixing column is inserted into the 3 rd fixing hole (2.11.1), the 4 th fixing column is inserted into the 4 th fixing hole (2.12.1), and then the right bracket cover plate (4) is mounted above the right side of the top cover (2).
Preferably, the bottom plate (1.1) is provided with heat dissipation holes (1.7).
Preferably, the left and right sides of roof (2.1) of top cap (2), left wiring groove (2.15) and right wiring groove (2.16) are offered to the symmetry, and the wiring groove that is used for holding the wiring is formed in the concatenation of the right wiring groove (2.16) of this left wiring groove (2) of top cap (2) and another adjacent top cap (2) in left side, through the wiring, realizes the positive pole of this top cap (2) and another adjacent top cap (2) in left side's series connection.
Preferably, the heights of the top surfaces of the 1 st trapezoid protection angle (2.9) and the 2 nd trapezoid protection angle (2.10) are higher than the height of the negative pole post (5.4) positioned in the center of the negative pole piece (5.1), so that a gap is formed between the bottom of the left bracket cover plate (3) and the top surface of the negative pole post (5.4);
the heights of the top surfaces of the 3 rd trapezoid corner protector (2.11) and the 4 th trapezoid corner protector (2.12) are higher than the heights of the positive pole posts (5.5) positioned in the centers of the positive pole pieces (5.2), so that gaps are reserved between the bottoms of the right bracket cover plates (4) and the top surfaces of the positive pole posts (5.5).
Preferably, a gap is formed between the left bracket cover plate (3) and the right bracket cover plate (4).
Preferably, the top surfaces of the left security block (2.13) and the right security block (2.14) are higher than the top surface of the lithium battery cell explosion-proof valve (5.3).
Preferably, 3-4 right-angle fan-shaped fixing seats (3.3) are respectively arranged at the bottoms of the 1 st fixing column (3.1) and the 2 nd fixing column (3.2).
Preferably, the 1 st fixing column (3.1) and the 2 nd fixing column (3.2) are cylinders, the diameter of the bottom surface of each cylinder is 3-5mm, and the height is 7-9mm; the contact area between each right-angle fan-shaped fixing seat (3.3) and the cylinder is 2-3mm 2 。
The aluminum shell cell fixing bracket provided by the invention has the following advantages:
1. the structure is light, the battery core can be fixed, and the heat dissipation of the battery core is convenient;
2. the connection is stable, the base and the top cover are provided with the lock catches, the lock catches are distributed on four surfaces, and the adjacent brackets can be closely connected together without being scattered;
3. wiring grooves are reserved on the bracket cover plate, and wiring harnesses are reasonably arranged;
4. the flame-retardant cover plate is added to separate the positive and negative electrode posts of the battery core from external electric parts, so that the positive and negative electrodes are prevented from being short-circuited, and a good insulating effect is achieved;
5. the maintenance is strong, when a certain cell in the battery pack fails, the cover plate can be vertically detached to replace the cell, so that the stability of the battery pack is greatly improved, the safety is greatly improved, and the maintainability is greatly enhanced.
Drawings
Fig. 1 is a schematic structural diagram of an aluminum shell cell fixing bracket assembled by 5 aluminum shell cell fixing bracket units provided by the invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the bracket cover removed;
fig. 3 is a schematic structural diagram of an aluminum-shell cell fixing bracket unit provided by the invention;
FIG. 4 is a schematic structural view of a base provided by the present invention;
FIG. 5 is a schematic view of the structure of the top cover according to the present invention;
fig. 6 is a schematic structural view of a bracket cover plate provided by the invention;
fig. 7 is a schematic diagram of an assembled structure of a lithium battery cell and a base provided by the invention;
fig. 8 is a schematic structural diagram of the aluminum-shell cell fixing bracket unit provided by the invention after the left and right bracket cover plates are removed.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides an aluminum shell cell fixing bracket which mainly has the following advantages:
(1) The aluminum shell battery cell fixing bracket provided by the invention ensures that the fault battery cells are replaced quickly, other battery cells are not affected, and the integral fixing condition of the bracket is not affected.
(2) The aluminum shell battery cell fixing support provided by the invention is provided with the insulating cover plate, so that the short circuit of the anode and the cathode of the battery cell caused by improper operation is prevented.
(3) The aluminum shell cell fixing support provided by the invention has wide application range, and can be directly applied to fixing of aluminum shell cells of other types only by modifying specific dimensions.
(4) The aluminum shell battery cell fixing bracket provided by the invention can enable the battery cell to be conveniently and rapidly put into the bracket, and improves the production efficiency.
Specifically, the invention provides an aluminum shell cell fixing bracket, which comprises a plurality of aluminum shell cell fixing bracket units connected through lock catches; each aluminum shell cell fixing support unit is used for installing and fixing one lithium cell 5. Referring to fig. 1, which is a structure diagram of an assembled 5 aluminum case cell fixing support unit, in fig. 1, an aluminum case cell fixing support unit a is located at a central position, a front side of the aluminum case cell fixing support unit a is connected with an aluminum case cell fixing support unit B through a lock catch, a rear side of the aluminum case cell fixing support unit a is connected with an aluminum case cell fixing support unit E through a lock catch, a left side of the aluminum case cell fixing support unit a is connected with an aluminum case cell fixing support unit C through a lock catch, and a right side of the aluminum case cell fixing support unit D is connected with an aluminum case cell fixing support unit D through a lock catch.
Because every aluminum hull electric core fixed bolster unit passes through the hasp with adjacent aluminum hull electric core fixed bolster unit and is connected, consequently, when certain several lithium electric core breaks down, only need directly dismantle corresponding aluminum hull electric core fixed bolster unit can, because for the hasp connection, consequently, aluminum hull electric core fixed bolster unit dismantles conveniently, can be under the circumstances that does not influence other aluminum hull electric core to fix, the trouble aluminum hull electric core can be changed conveniently fast, not only the later maintenance of convenient lithium cell group, can also improve single electric core's average life, improve resource utilization, and save the cost.
Referring to fig. 3, which is a structural diagram of an aluminum case cell fixing bracket unit, the aluminum case cell fixing bracket unit includes a base 1, a top cover 2, a left bracket cover plate 3 and a right bracket cover plate 4. The base, the top cover and the bracket cover plate are rectangular-like plates, four corners are designed in an arc mode, the bottom of the lithium battery core and the base are fixed in a frame fastening sleeve mode, the top of the lithium battery core and the top cover are fixed in a frame fastening sleeve mode, and the bracket cover plate is fixedly installed on the top cover in an inserting mode. Therefore, the fixed connection among the base, the top cover and the bracket cover plate does not need to adopt connecting pieces such as screws, and the like, thereby being very convenient for manual disassembly. Therefore, the single battery cell is conveniently taken out for replacement and maintenance.
In the invention, the base 1 and the top cover 2 are provided with the lock catches at the corresponding positions, so that two adjacent aluminum shell battery cell fixing bracket units are connected through the two groups of lock catches, and the stability of a connecting structure is enhanced. In addition, as a plurality of groups of lithium battery cells are assembled together, the heat dissipation capacity is large, the structure of the aluminum shell battery cell fixing support unit is designed, and the heat dissipation capacity of the lithium battery cells is improved.
The following details of the aluminum shell cell fixing support unit include a base 1, a top cover 2, a left support cover plate 3 and a right support cover plate 4:
base (one)
The base is used for supporting the lithium battery cell, and is shown in fig. 4, fig. 7 and an assembled state diagram of the base and the lithium battery cell.
The base 1 comprises a rectangular bottom plate 1.1 and a base frame body 1.2 formed on the periphery of the bottom plate 1.1, wherein the shape and the size of the base frame body 1.2 are matched with those of the bottom of the lithium battery cell 5 to be fixed, so that the bottom of the lithium battery cell 5 is clamped and fixed in the base frame body 1.2, and the lithium battery cell is stably supported.
In order to realize the plug-in connection between the base and the base of the aluminum shell battery cell fixing support unit adjacent to the front side, the rear side, the left side and the right side, lock catches are respectively arranged on the periphery of the base frame body. Specifically, the front side plate of the base frame body 1.2 is provided with at least one 1 st male lock catch 1.3, the rear side plate of the base frame body 1.2 is provided with at least one 1 st female lock catch 1.4 matched with the 1 st male lock catch 1.3, the left side plate of the base frame body 1.2 is provided with at least one 2 nd female lock catch 1.5, and the right side plate of the base frame body 1.2 is provided with at least one 2 nd male lock catch 1.6 matched with the 2 nd female lock catch 1.5; the base of the aluminum shell battery cell fixing bracket unit is fixedly connected with the base of the adjacent front and rear aluminum shell battery cell fixing bracket units in a plugging manner through the 1 st male lock catch 1.3 and the 1 st female lock catch 1.4; the base of the aluminum shell battery cell fixing support unit is fixedly connected with the base of the adjacent left and right aluminum shell battery cell fixing support units in a plugging manner through the plugging fixation of the 2 nd female lock catch 1.5 and the 2 nd male lock catch 1.6. In the invention, the male lock catch and the female lock catch which are arranged on the base are all in a through design, so that the connection between the bases of the different aluminum shell battery cell fixing bracket units is realized.
In addition, the bottom plate 1.1 is provided with a heat dissipation hole 1.7, which is an oval through hole in the drawing, so that the overall heat dissipation of the bracket is improved.
(II) Top cover
The top cap is used for assembling lithium cell top, through the cooperation with the support apron, realizes the protection to lithium cell top core part, designs the top cap structure simultaneously, improves the support thermal diffusivity.
Referring to fig. 5, which is a structural view of the top cover, and referring to fig. 8, which is a structural view of the top cover assembled to the top of the lithium battery cell. The top cover 2 comprises a top plate 2.1 and a top cover frame body 2.2 which is arranged below the periphery of the top plate 2.1, wherein the shape and the size of the top cover frame body 2.2 are matched with the shape and the size of the top of the lithium battery cell 5 to be fixed, so that the top cover frame body 2.2 is sleeved at the top of the lithium battery cell 5.
In order to realize the plugging of the top cover and the top cover of the aluminum shell battery cell fixing support unit adjacent to the front side, the rear side, the left side and the right side, lock catches are respectively arranged on the periphery of the top cover frame body. Specifically, a 3 rd female lock catch 2.3 is arranged on a left side frame of the top cover frame body 2.2, a 3 rd male lock catch 2.4 matched with the 3 rd female lock catch 2.3 is arranged on a right side frame of the top cover frame body 2.2, and the 3 rd female lock catch 2.3 and the 3 rd male lock catch 2.4 are fixedly connected in a plugging manner, so that the top cover of the aluminum shell battery cell fixing bracket unit is fixedly connected with the top covers of the adjacent left and right side aluminum shell battery cell fixing bracket units in a plugging manner; the 4 th male lock catch 2.5 is arranged on the front side frame of the top cover frame body 2.2, the 4 th female lock catch 2.6 matched with the 4 th male lock catch 2.5 is arranged on the rear side frame of the top cover frame body 2.2, and the plug-in fixation of the top cover of the aluminum shell battery cell fixing support unit and the top cover of the adjacent front and rear side aluminum shell battery cell fixing support unit is realized through the plug-in fixation of the 4 th male lock catch 2.5 and the 4 th female lock catch 2.6.
In the invention, the male lock catch and the female lock catch are of non-through design, the male lock catch of the top cover can be connected with the female lock catch at the other end of the adjacent top cover, the female lock catch at one side of the top cover can be connected with the male lock catch at the other side of the adjacent top cover, and the like, so that the adjacent top covers are connected.
In addition, the left side and the right side of the top plate 2.1 are respectively provided with a negative plate fixing clamping groove 2.7 and a positive plate fixing clamping groove 2.8, the negative plate fixing clamping groove 2.7 and the positive plate fixing clamping groove 2.8 are respectively matched with the negative plate 5.1 and the positive plate 5.2 at the top of the lithium battery cell 5 and are rectangular through holes, so that the negative plate fixing clamping groove 2.7 is clamped outside the negative plate 5.1, and the positive plate fixing clamping groove 2.8 is clamped outside the positive plate 5.2.
The 1 st trapezoid corner protector 2.9 and the 2 nd trapezoid corner protector 2.10 are fixedly installed on the front side and the rear side of the negative plate fixing clamping groove 2.7 respectively, the 1 st trapezoid corner protector 2.9 is provided with a 1 st fixing hole 2.9.1 for being spliced with the bracket cover plate, and the 2 nd trapezoid corner protector 2.10 is provided with a 2 nd fixing hole 2.10.1 for being spliced with the bracket cover plate; the 3 rd trapezoid corner protector 2.11 and the 4 th trapezoid corner protector 2.12 are fixedly installed on the front side and the rear side of the positive plate fixing clamping groove 2.8 respectively, the 3 rd trapezoid corner protector 2.11 is provided with a 3 rd fixing hole 2.11.1 for being spliced with the bracket cover plate, and the 4 th trapezoid corner protector 2.12 is provided with a 4 th fixing hole 2.12.1 for being spliced with the bracket cover plate. In the drawing, each trapezoid corner protector is provided with two fixing holes, and each bracket cover plate is provided with four fixing columns correspondingly. The invention is not limited to the number of the fixing holes and the fixing posts.
The heights of the top surfaces of the 1 st trapezoid corner protector 2.9 and the 2 nd trapezoid corner protector 2.10 are higher than the height of the negative electrode pole 5.4 positioned in the center of the negative electrode piece 5.1, so that a gap is reserved between the bottom of the left bracket cover plate 3 and the top surface of the negative electrode pole 5.4; the heights of the top surfaces of the 3 rd trapezoid corner protector 2.11 and the 4 th trapezoid corner protector 2.12 are higher than the height of the positive pole post 5.5 positioned in the center of the positive pole piece 5.2, so that a gap is reserved between the bottom of the right bracket cover plate 4 and the top surface of the positive pole post 5.5. Through setting up trapezoidal angle bead, have following advantage: (1) positive and negative electrode posts are effectively protected; (2) Through trapezoidal angle bead, make and have the clearance between support apron and the top cap top, improve the thermal diffusivity. (3) Through trapezoidal angle bead, the arrangement space of power pencil has been reserved.
In addition, a lithium battery cell explosion-proof valve fixing clamping groove 2.17 is formed in the center of the top plate 2.1, a round hole with the diameter of 12mm is formed in the drawing, the lithium battery cell explosion-proof valve fixing clamping groove 2.17 is matched with a lithium battery cell explosion-proof valve 5.3 at the top of the lithium battery cell 5, and the lithium battery cell explosion-proof valve fixing clamping groove 2.17 is clamped outside the lithium battery cell explosion-proof valve 5.3; the left security block 2.13 and the right security block 2.14 are respectively and fixedly arranged at the left side and the right side of the lithium battery cell explosion-proof valve fixing clamping groove 2.17, wherein the top surfaces of the left security block 2.13 and the right security block 2.14 are higher than the top surface height of the lithium battery cell explosion-proof valve 5.3, so that the explosion-proof valve is prevented from being damaged.
For wiring convenience, left wiring grooves 2.15 and right wiring grooves 2.16 are symmetrically formed in the left side and the right side of the top plate 2.1 of the top cover 2, the left wiring grooves 2.15 of the top cover 2 are spliced with the right wiring grooves 2.16 of the other top cover 2 adjacent to the left side to form wiring grooves for accommodating wiring, and the series connection of the negative electrode of the top cover 2 and the positive electrode of the other top cover 2 adjacent to the left side is realized through wiring. Referring to fig. 2,6 is a power harness connected between the positive and negative electrodes of two adjacent lithium batteries. The power wire harness is arranged right above the left wiring groove 2.15 of the top cover 2 and the right wiring groove 2.16 of the other top cover 2 adjacent to the left side. Here, due to the arrangement of the trapezoid corner protector, a gap is formed between the bracket cover plate and the top cover, and the gap also exactly reserves space for wiring.
(III) bracket cover plate
For an aluminum shell cell fixed support unit, two support cover plates are arranged, namely a left support cover plate and a right support cover plate, the structures of the left support cover plate and the right support cover plate are the same, and the left support cover plate and the right support cover plate are respectively arranged above a positive pole post and a negative pole post of a lithium battery.
Through installing support apron, the support apron is insulating apron, locks respectively in the top cap left and right sides both ends, consequently, separates the positive and negative pole post of electric core and outside electrical components.
Referring to fig. 6, a structural diagram of the bracket cover is shown. The bottom of the left bracket cover plate 3 is provided with a 1 st fixed column 3.1 and a 2 nd fixed column 3.2; the 1 st fixed column 3.1 is inserted into the 1 st fixed hole 2.9.1, the 2 nd fixed column 3.2 is inserted into the 2 nd fixed hole 2.10.1, and then the left bracket cover plate 3 is mounted above the left side of the top cover 2;
the bottom of the right bracket cover plate 4 is provided with a 3 rd fixed column and a 4 th fixed column; the 3 rd fixed column is inserted into the 3 rd fixed hole 2.11.1, the 4 th fixed column is inserted into the 4 th fixed hole 2.12.1, and then the right bracket cover plate 4 is mounted on the upper right side of the top cover 2.
In practical application, 3-4 right angle fan-shaped fixing seats 3.3 are arranged at the bottoms of the 1 st fixing column 3.1 and the 2 nd fixing column 3.2, so that the connection strength is enhanced. The 1 st fixed column 3.1 and the 2 nd fixed column 3.2 are cylinders, the diameter of the bottom surface of each cylinder is 3-5mm, and the height is 7-9mm; the contact area between each right-angle fan-shaped fixed seat 3.3 and the cylinder is 2-3mm 2 。
By installing two bracket cover plates above the top cover and enabling a gap to be formed between the left bracket cover plate 3 and the right bracket cover plate 4, compared with the mode of arranging a whole bracket cover plate, the design mode of the invention can improve the heat dissipation performance of the bracket.
The aluminum shell cell fixing bracket provided by the invention has the following advantages:
1. the structure is light, the battery core can be fixed, and the heat dissipation of the battery core is convenient;
2. the connection is stable, the base and the top cover are provided with the lock catches, the lock catches are distributed on four surfaces, and the adjacent brackets can be closely connected together without being scattered;
3. wiring grooves are reserved on the bracket cover plate, and wiring harnesses are reasonably arranged;
4. the flame-retardant cover plate is added to separate the positive and negative electrode posts of the battery core from external electric parts, so that the positive and negative electrodes are prevented from being short-circuited, and a good insulating effect is achieved;
5. the maintenance is strong, when a certain cell in the battery pack fails, the cover plate can be vertically detached to replace the cell, so that the stability of the battery pack is greatly improved, the safety is greatly improved, and the maintainability is greatly enhanced.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.

Claims (6)

1. The aluminum shell battery cell fixing bracket is characterized by comprising a plurality of aluminum shell battery cell fixing bracket units which are connected through lock catches; each aluminum shell battery cell fixing support unit is used for installing and fixing a lithium battery cell (5); each aluminum shell cell fixing support unit comprises a base (1), a top cover (2), a left support cover plate (3) and a right support cover plate (4);
the base (1) comprises a rectangular bottom plate (1.1) and a base frame body (1.2) formed on the periphery of the bottom plate (1.1), and the bottom plate (1.1) is provided with heat dissipation holes (1.7); the shape and the size of the base frame body (1.2) are matched with the shape and the size of the bottom of the lithium battery cell (5) to be fixed, so that the bottom of the lithium battery cell (5) is clamped and fixed in the base frame body (1.2); the front side plate of the base frame body (1.2) is provided with at least one 1 st male lock catch (1.3), the rear side plate of the base frame body (1.2) is provided with at least one 1 st female lock catch (1.4) matched with the 1 st male lock catch (1.3), the left side plate of the base frame body (1.2) is provided with at least one 2 nd female lock catch (1.5), and the right side plate of the base frame body (1.2) is provided with at least one 2 nd male lock catch (1.6) matched with the 2 nd female lock catch (1.5); the base of the aluminum shell battery cell fixing bracket unit is fixedly connected with the base of the adjacent front and rear aluminum shell battery cell fixing bracket unit through the plug-in connection of the 1 st male lock catch (1.3) and the 1 st female lock catch (1.4); the base of the aluminum shell battery cell fixing bracket unit is fixedly connected with the base of the adjacent left and right aluminum shell battery cell fixing bracket units in a plugging manner through the plugging and fixing of the 2 nd female lock catch (1.5) and the 2 nd male lock catch (1.6);
the top cover (2) comprises a top plate (2.1) and a top cover frame body (2.2) arranged below the periphery of the top plate (2.1), the shape and the size of the top cover frame body (2.2) are matched with those of the top of the lithium battery cell (5) to be fixed, and the top cover frame body (2.2) is sleeved on the top of the lithium battery cell (5); a 3 rd female lock catch (2.3) is arranged on the left side frame of the top cover frame body (2.2), a 3 rd male lock catch (2.4) matched with the 3 rd female lock catch (2.3) is arranged on the right side frame of the top cover frame body (2.2), and the 3 rd female lock catch (2.3) and the 3 rd male lock catch (2.4) are fixedly connected in a plugging manner, so that the top cover of the aluminum shell battery cell fixing bracket unit is fixedly connected with the top cover of the adjacent left and right side aluminum shell battery cell fixing bracket units in a plugging manner; a 4 th male lock catch (2.5) is arranged on the front side frame of the top cover frame body (2.2), a 4 th female lock catch (2.6) matched with the 4 th male lock catch (2.5) is arranged on the rear side frame of the top cover frame body (2.2), and the 4 th male lock catch (2.5) and the 4 th female lock catch (2.6) are fixedly connected in a plugging manner, so that the top cover of the aluminum shell battery cell fixing bracket unit is fixedly connected with the top cover of the adjacent front and rear side aluminum shell battery cell fixing bracket unit in a plugging manner;
negative plate fixing clamping grooves (2.7) and positive plate fixing clamping grooves (2.8) are respectively formed in the left side and the right side of the top plate (2.1), the negative plate fixing clamping grooves (2.7) and the positive plate fixing clamping grooves (2.8) are respectively matched with a negative plate (5.1) and a positive plate (5.2) at the top of the lithium battery cell (5), so that the negative plate fixing clamping grooves (2.7) are clamped outside the negative plate (5.1), and the positive plate fixing clamping grooves (2.8) are clamped outside the positive plate (5.2); the 1 st trapezoid corner protector (2.9) and the 2 nd trapezoid corner protector (2.10) are fixedly installed on the front side and the rear side of the negative plate fixing clamping groove (2.7), the 1 st trapezoid corner protector (2.9) is provided with a 1 st fixing hole (2.9.1), and the 2 nd trapezoid corner protector (2.10) is provided with a 2 nd fixing hole (2.10.1); the 3 rd trapezoid corner protector (2.11) and the 4 th trapezoid corner protector (2.12) are fixedly installed on the front side and the rear side of the positive plate fixing clamping groove (2.8), the 3 rd trapezoid corner protector (2.11) is provided with a 3 rd fixing hole (2.11.1), and the 4 th trapezoid corner protector (2.12) is provided with a 4 th fixing hole (2.12.1);
a lithium battery cell explosion-proof valve fixing clamping groove (2.17) is formed in the center position of the top plate (2.1), the lithium battery cell explosion-proof valve fixing clamping groove (2.17) is matched with a lithium battery cell explosion-proof valve (5.3) at the top of the lithium battery cell (5), and the lithium battery cell explosion-proof valve fixing clamping groove (2.17) is clamped outside the lithium battery cell explosion-proof valve (5.3); a left security block (2.13) and a right security block (2.14) are fixedly arranged at the left side and the right side of the lithium battery core explosion-proof valve fixing clamping groove (2.17);
the left and right sides of the top plate (2.1) of the top cover (2) are symmetrically provided with left wiring grooves (2.15) and right wiring grooves (2.16), the left wiring grooves (2.15) of the top cover (2) are spliced with the right wiring grooves (2.16) of the other top cover (2) adjacent to the left side to form wiring grooves for accommodating wiring, and the series connection of the negative electrode of the top cover (2) and the positive electrode of the other top cover (2) adjacent to the left side is realized through wiring;
the bottom of the left bracket cover plate (3) is provided with a 1 st fixed column (3.1) and a 2 nd fixed column (3.2); the 1 st fixing column (3.1) is inserted into the 1 st fixing hole (2.9.1), the 2 nd fixing column (3.2) is inserted into the 2 nd fixing hole (2.10.1), and then the left bracket cover plate (3) is mounted above the left side of the top cover (2);
the bottom of the right bracket cover plate (4) is provided with a 3 rd fixed column and a 4 th fixed column; the 3 rd fixing column is inserted into the 3 rd fixing hole (2.11.1), the 4 th fixing column is inserted into the 4 th fixing hole (2.12.1), and then the right bracket cover plate (4) is mounted above the right side of the top cover (2).
2. The aluminum-case cell fixing bracket according to claim 1, wherein the heights of the top surfaces of the 1 st trapezoid corner protector (2.9) and the 2 nd trapezoid corner protector (2.10) are higher than the height of the negative pole post (5.4) positioned at the center of the negative pole piece (5.1), so that a gap is formed between the bottom of the left bracket cover plate (3) and the top surface of the negative pole post (5.4);
the heights of the top surfaces of the 3 rd trapezoid corner protector (2.11) and the 4 th trapezoid corner protector (2.12) are higher than the heights of the positive pole posts (5.5) positioned in the centers of the positive pole pieces (5.2), so that gaps are reserved between the bottoms of the right bracket cover plates (4) and the top surfaces of the positive pole posts (5.5).
3. The aluminum housing cell fixing bracket according to claim 1, wherein a gap is formed between the left bracket cover plate (3) and the right bracket cover plate (4).
4. The aluminum hull cell fixing bracket according to claim 1, wherein the top surfaces of the left security block (2.13) and the right security block (2.14) are higher than the top surface height of the lithium cell explosion-proof valve (5.3).
5. The aluminum-shell cell fixing bracket according to claim 1, wherein 3-4 right-angle fan-shaped fixing seats (3.3) are respectively arranged at the bottoms of the 1 st fixing column (3.1) and the 2 nd fixing column (3.2).
6. The aluminum-shell cell fixing bracket according to claim 5, wherein the 1 st fixing column (3.1) and the 2 nd fixing column (3.2) are cylinders, the diameter of the bottom surface of each cylinder is 3-5mm, and the height of each cylinder is 7-9mm; the contact area between each right-angle fan-shaped fixing seat (3.3) and the cylinder is 2-3mm 2 。
CN201810639336.0A 2018-06-20 2018-06-20 Aluminum shell cell fixing support Active CN108832039B (en)

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CN111106279B (en) * 2019-08-02 2022-11-08 宁德时代新能源科技股份有限公司 Battery pack
CN112151709A (en) 2019-06-27 2020-12-29 宁德时代新能源科技股份有限公司 Battery pack and vehicle

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