CN220189837U

CN220189837U - Modularized lithium iron phosphate battery pack easy to replace

Info

Publication number: CN220189837U
Application number: CN202321715683.XU
Authority: CN
Inventors: 李锐辉
Original assignee: Zhangzhou Huafu New Energy Technology Co ltd
Current assignee: Zhangzhou Huafu New Energy Technology Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-12-15
Anticipated expiration: 2033-07-03

Abstract

The utility model belongs to the technical field of lithium iron phosphate battery packs, and particularly relates to an easy-to-replace modularized lithium iron phosphate battery pack which comprises a module shell, wherein a heat conduction base pad is fixedly connected in the module shell, a plurality of uniformly distributed battery monomers are placed on the heat conduction base pad, a plurality of uniformly distributed heat dissipation fins are fixedly connected in the heat conduction base pad, and each heat dissipation fin is provided with a through hole. According to the utility model, after each battery monomer is placed in the module shell, each battery monomer is separated by the partition plate, then the insulating seat is arranged in the module shell and is used for sealing each battery monomer, and then the dismounting mechanism is arranged between the insulating seat and the module shell, and the bayonet lock in the dismounting mechanism is inserted into the module shell under the action of elasticity, so that the dismounting of the insulating seat can be completed by controlling the clutch of the bayonet lock in the module shell, thereby completing the replacement of the battery monomer.

Description

Modularized lithium iron phosphate battery pack easy to replace

Technical Field

The utility model relates to the technical field of lithium iron phosphate battery packs, in particular to an easy-to-replace modularized lithium iron phosphate battery pack.

Background

The lithium iron phosphate battery is specially designed for the requirements of high reliability, long service life, durability and the like. These battery products can be used in systems of different grades, from a single cell to a battery module consisting of multiple cells to a complete battery box consisting of sensors and switches, software, communication interfaces and battery management systems. For example, the utility model patent with publication number of CN213878299U discloses a lithium iron phosphate battery pack, the inside of casing is provided with lithium iron phosphate battery, lithium iron phosphate battery is provided with a plurality of, the both sides of casing all are provided with the breach, the breach is provided with a plurality of, just the outside of breach is provided with the limiting plate, the connecting rod is installed to the one end of limiting plate, the connecting rod passes the breach and extends to the inside one side welded connection with lithium iron phosphate battery of casing.

However, the existing modularized lithium iron phosphate battery pack is complex in disassembly and assembly mode, inconvenient in later battery monomer replacement, and small in radiating surface and influences heat radiation after the lithium iron phosphate battery pack is assembled. Therefore, improvements are needed.

Disclosure of Invention

The utility model aims to provide a modularized lithium iron phosphate battery pack easy to replace, which solves the problems that the existing modularized lithium iron phosphate battery pack is complex in disassembly and assembly mode, inconvenient in later battery monomer replacement, small in radiating surface and affected in radiating after the assembly of the lithium iron phosphate battery pack.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an easy modular lithium iron phosphate group of changing, includes the module shell, fixedly connected with heat conduction base pad in the module shell, a plurality of evenly distributed's battery monomer has been placed on the heat conduction base pad, fixedly connected with a plurality of evenly distributed's heat dissipation fin in the heat conduction base pad, every the through-hole has been seted up on the heat dissipation fin, sliding connection has heat dissipation fin on the module shell, fixedly connected with pad on the heat dissipation fin, the pad contacts with the heat conduction base pad, the pad contacts with the module shell, the pad contacts with the battery monomer, sliding connection has insulating seat in the module shell, be provided with dismouting mechanism jointly between module shell and the insulating seat, fixedly connected with serial board and electrode in the insulating seat, serial board and electrode fixed connection, serial board and battery monomer contact.

Preferably, a separator is placed on the heat conducting base pad, and the separator is in contact with the battery cell. Through the setting of baffle, have the interval and prevent bumping the cover effect to adjacent two battery monomer.

Preferably, the module shell is provided with a cavity, and the cavity is communicated with the heat conduction bottom pad. Through the setting of cavity, the circulation of the interior air of heat conduction base pad of being convenient for.

Preferably, the dismounting mechanism comprises a bayonet lock, a spring, a sliding sleeve, a knock pin and a limiting block, wherein the bayonet lock is connected with the insulating seat in a sliding manner, the bayonet lock is connected with the module shell in a sliding manner, the spring is arranged in the insulating seat, the sliding sleeve is fixedly connected with the module shell, the knock pin is connected with the sliding sleeve in a sliding manner, and the knock pin is in contact with the bayonet lock. Through the setting of dismouting mechanism, the dismouting of insulating seat of being convenient for to the change of battery monomer is convenient for.

Preferably, one end of the spring is fixedly connected with the bayonet lock, and the other end of the spring is fixedly connected with the inner surface of the insulating seat. By means of the arrangement of the spring, a spring force can be exerted on the detent.

Preferably, a limiting block is fixedly connected to the ejector pin, and the limiting block is in sliding connection with the sliding sleeve. Through the setting of stopper, have limiting displacement to the stroke of knock pin.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, after each battery monomer is placed in the module shell, each battery monomer is separated by the partition plate, then the insulating seat is arranged in the module shell and is used for sealing each battery monomer, and then the dismounting mechanism is arranged between the insulating seat and the module shell, and the bayonet lock in the dismounting mechanism is inserted into the module shell under the action of elasticity, so that the dismounting of the insulating seat can be completed by controlling the clutch of the bayonet lock in the module shell, thereby completing the replacement of the battery monomer.

2. According to the utility model, the heat conduction bottom pad is arranged at the bottom of the module shell, the heat dissipation fins are arranged on the heat conduction bottom pad, then the spacer with the heat dissipation fins is arranged on the side surface of the module shell, and the spacer is contacted with the battery cell, so that heat exchange can be realized between the battery cell and the module shell in a larger area, and the heat dissipation effect is better.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present utility model;

fig. 3 is an enlarged view of the structure of fig. 2 at a in accordance with the present utility model.

In the figure: 1. a module housing; 2. a thermally conductive base pad; 3. a battery cell; 4. a partition plate; 5. a heat radiation fin; 6. a through hole; 7. a cavity; 8. an insulating base; 9. a disassembly and assembly mechanism; 10. a spacer; 11. a heat radiation fin; 12. a serial connection plate; 13. an electrode; 91. a bayonet lock; 92. a spring; 93. a sliding sleeve; 94. a knock pin; 95. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Please refer to fig. 1, 2, a modularized lithium iron phosphate battery pack easy to replace, which comprises a module shell 1, wherein a heat conduction base pad 2 is fixedly connected in the module shell 1, a plurality of battery monomers 3 which are uniformly distributed are placed on the heat conduction base pad 2, a partition board 4 is placed on the heat conduction base pad 2, the partition board 4 is in contact with the battery monomers 3, and a gap anti-collision cover effect is provided between two adjacent battery monomers 3 through the arrangement of the partition board 4.

Referring to fig. 1 and 2, a plurality of heat dissipation fins 5 are fixedly connected in the heat conduction bottom pad 2, through holes 6 are formed in each heat dissipation fin 5, a cavity 7 is formed in the module housing 1, the cavity 7 is communicated with the heat conduction bottom pad 2, through the arrangement of the cavity 7, air in the heat conduction bottom pad 2 is convenient to circulate, the heat dissipation fins 11 are slidably connected in the module housing 1, a spacer 10 is fixedly connected on the heat dissipation fins 11, the spacer 10 is in contact with the heat conduction bottom pad 2, the spacer 10 is in contact with the module housing 1, the spacer 10 is in contact with the battery cell 3, an insulating seat 8 is slidably connected in the module housing 1, a series plate 12 and an electrode 13 are fixedly connected in the insulating seat 8, and the series plate 12 is in contact with the battery cell 3.

Referring to fig. 2 and 3, a dismounting mechanism 9 is jointly arranged between the module housing 1 and the insulating base 8, dismounting of the insulating base 8 is facilitated through arrangement of the dismounting mechanism 9, and accordingly replacement of the battery unit 3 is facilitated, the dismounting mechanism 9 comprises a clamping pin 91, a spring 92, a sliding sleeve 93, a jacking pin 94 and a limiting block 95, the clamping pin 91 is connected with the insulating base 8 in a sliding mode, the clamping pin 91 is connected with the module housing 1 in a sliding mode, the spring 92 is arranged in the insulating base 8, one end of the spring 92 is fixedly connected with the clamping pin 91, the other end of the spring 92 is fixedly connected with the inner surface of the insulating base 8, elastic force can act on the clamping pin 91 through arrangement of the spring 92, a sliding sleeve 93 is fixedly connected with the jacking pin 94, the jacking pin 94 is in contact with the clamping pin 91, the limiting block 95 is fixedly connected with the sliding sleeve 93 in a sliding mode, and the limiting block 95 has a limiting function on the stroke of the jacking pin 94 through arrangement of the limiting block 95.

The specific implementation process of the utility model is as follows: when the battery pack is used, firstly, the battery cells 3 are placed into the module shell 1, the bottoms of the battery cells 3 are contacted with the heat conduction bottom pad 2, the battery cells 3 are separated by the partition plates 4, then the insulating seat 8 is taken, the clamping pin 91 is pressed into the insulating seat 8, the spring 92 is extruded, then the state of the clamping pin 91 is kept, then the insulating seat 8 is placed into the module shell 1, the serial plates 12 on the module shell 1 are abutted against the battery cells 3, then the clamping pin 91 is transversely inserted into the module shell 1 and contacted with the ejector pins 94 under the elastic force of the spring 92, thus the whole assembly is completed, and the insulating seat 8 can be taken down only by pushing the clamping pin 91 out of the module shell 1 through the ejector pins 94 if the battery cells 3 need to be replaced, and then the battery cells 3 can be replaced, so that the operation is simple and convenient;

and because the bottom and the side of the battery cell 3 can realize heat exchange with the heat conduction bottom pad 2, the heat dissipation fins 5, the spacer 10 and the heat dissipation fins 11, the heat exchange area is larger, and the heat dissipation effect is better.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an easy modular lithium iron phosphate group battery of changing, includes module shell (1), its characterized in that: the battery module comprises a module shell (1), wherein a heat conduction bottom pad (2) is fixedly connected to the module shell (1), a plurality of battery monomers (3) which are uniformly distributed are placed on the heat conduction bottom pad (2), a plurality of heat dissipation fins (5) which are uniformly distributed are fixedly connected to the heat conduction bottom pad (2), through holes (6) are formed in the heat dissipation fins (5), heat dissipation fins (11) are connected to the module shell (1) in a sliding mode, a separation pad (10) is fixedly connected to the heat dissipation fins (11), the separation pad (10) is in contact with the heat conduction bottom pad (2), the separation pad (10) is in contact with the module shell (1), an insulating base (8) is connected to the module shell (1) in a sliding mode, a dismounting mechanism (9) is arranged between the module shell (1) and the insulating base (8), a series plate (12) and an electrode (13) are fixedly connected to the insulating base (8), and the separation pad (10) is in series connection with the battery monomers (3).

2. An easily replaceable modular lithium iron phosphate battery pack according to claim 1, wherein: and a partition board (4) is arranged on the heat conduction bottom pad (2), and the partition board (4) is in contact with the battery monomer (3).

3. An easily replaceable modular lithium iron phosphate battery pack according to claim 1, wherein: a cavity (7) is formed in the module shell (1), and the cavity (7) is communicated with the heat conduction base pad (2).

4. An easily replaceable modular lithium iron phosphate battery pack according to claim 1, wherein: the disassembly and assembly mechanism (9) comprises a bayonet lock (91), a spring (92), a sliding sleeve (93), a top pin (94) and a limiting block (95), wherein the bayonet lock (91) is connected in a sliding manner in the insulating seat (8), the bayonet lock (91) is connected with the module shell (1) in a sliding manner, the spring (92) is arranged in the insulating seat (8), the sliding sleeve (93) is fixedly connected on the module shell (1), the top pin (94) is connected in a sliding manner in the sliding sleeve (93), and the top pin (94) is in contact with the bayonet lock (91).

5. An easily replaceable modular lithium iron phosphate battery pack according to claim 4, wherein: one end of the spring (92) is fixedly connected with the bayonet lock (91), and the other end of the spring (92) is fixedly connected with the inner surface of the insulating seat (8).

6. An easily replaceable modular lithium iron phosphate battery pack according to claim 4, wherein: a limiting block (95) is fixedly connected to the ejector pin (94), and the limiting block (95) is in sliding connection with the sliding sleeve (93).