CN215896594U

CN215896594U - Simple assembling system for new energy lithium battery

Info

Publication number: CN215896594U
Application number: CN202122372551.9U
Authority: CN
Inventors: 黎广良
Original assignee: Shenzhen Ferex Electronics Co ltd
Current assignee: Shenzhen Ferex Electronics Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-22
Anticipated expiration: 2031-09-27

Abstract

The application belongs to the field of lithium battery processing, and relates to a simple assembling system of a new energy lithium battery, which comprises a face shell, a bottom shell matched with the face shell, a BMS protection plate and a plurality of support frames, wherein each support frame comprises an installation surface and an insertion surface, a placing groove for placing a battery unit is arranged on each insertion surface, and a clamping piece is arranged between the installation surface and the insertion surface of each adjacent support frame; a plurality of support frames are combined to form a battery pack, and a sliding part is arranged between the battery pack and a BMS protection plate. This application has the effect that promotes the assembly efficiency of lithium cell case.

Description

Simple assembling system for new energy lithium battery

Technical Field

The application relates to the field of lithium battery processing, in particular to a simple assembling system for a new energy lithium battery.

Background

Lithium batteries are a class of batteries that use a nonaqueous electrolyte solution with lithium metal as the positive or negative electrode material. The lithium battery has a wide application range and is often used as an electric power source on an electric motorcycle and an electric bicycle. The lithium battery of the electric motorcycle or the electric bicycle is usually assembled into a battery box to meet the demand of the electric motorcycle or the electric bicycle for electric power.

At present, a plurality of lithium batteries are directly bound and fixed by using adhesive tapes to form a battery pack. And then, the battery pack is formed by coating the insulating plate on the surface of the battery pack, and the battery pack can be isolated from the outside by the insulating plate so as to protect the battery pack. The battery pack and the BMS protection board are bound by adhesive tapes after being coated with the insulation board, the positive and negative terminal connecting wires of the battery pack are installed on the face shell after being bound, and finally the battery pack is installed in the bottom shell to fix the bottom shell and the face shell to form the battery box.

However, the steps for assembling the lithium battery box in the above manner are complicated, the production efficiency is low, and the mass production of the lithium battery box is difficult to meet.

SUMMERY OF THE UTILITY MODEL

In order to promote the assembly efficiency of lithium cell case, this application provides simple and easy equipment system of new forms of energy lithium cell.

The application provides a simple and easy equipment system of new forms of energy lithium cell adopts following technical scheme:

the simple assembling system for the new energy lithium battery comprises a face shell, a bottom shell matched with the face shell, a BMS protection plate and a plurality of support frames, wherein each support frame comprises an installation surface and an insertion surface, a placing groove used for placing a battery unit is formed in each insertion surface, and a clamping piece is arranged between the installation surface and the insertion surface of each adjacent support frame; a plurality of support frames are combined to form a battery pack, and a sliding part is arranged between the battery pack and a BMS protection plate.

Through adopting above-mentioned technical scheme, during the equipment group battery, through installing battery cell in the standing groove of support frame, the group battery can be constituteed to the mutual joint of adjacent support frame, is connected group battery package with BMS protection shield and group battery again. And connecting the battery pack with the surface shell, and then loading the battery pack into the bottom shell to complete the assembly of the lithium battery box. The fixing process of the adjacent battery units is simplified, the difficulty in fixing the battery units is reduced, and the assembling steps of the lithium battery box are optimized, so that the production efficiency is improved.

Optionally, the clamping member includes a clamping column disposed on the insertion surface of the bracket frame, a clamping groove is correspondingly disposed on the mounting surface of the adjacent bracket frame, and the clamping column is clamped with the clamping groove.

Through adopting above-mentioned technical scheme, the simple structure of card post and draw-in groove, and the connected mode convenient and fast of card post and draw-in groove has reduced the fixed degree of difficulty between the adjacent support frame, has further promoted the connection convenience between the support frame to do benefit to the assembly that further simplifies the lithium cell case.

Optionally, the sliding part comprises a dovetail block arranged on the surface of the BMS protection plate, and a dovetail groove matched with the dovetail block is arranged on the bracket frame.

Through adopting above-mentioned technical scheme, the BMS protection shield slides through the dovetail of dovetail piece with the carriage frame and is connected, and the dovetail piece is simple swift with the connected mode of dovetail, and the BMS protection shield of being convenient for and the installation of carriage frame reduce the fixed degree of difficulty of BMS protection shield and carriage frame.

Optionally, the outer wall cover of BMS protection shield and group battery is equipped with the mount, the edge of mount and the inner wall butt of drain pan.

Through adopting above-mentioned technical scheme, on the outer wall of BMS protection shield and group battery was located to the mount cover, and the edge of mount and the inner wall butt of drain pan, restricted the relative displacement of BMS protection shield and group battery, made the group battery install more firm in the drain pan to promote lithium battery box's overall stability, be favorable to lithium battery box's long-term use.

Optionally, the outer wall of the battery pack is provided with a filling rubber sleeve made of an elastic material, and the outer wall of the filling rubber sleeve is abutted to the inner wall of the bottom shell.

Through adopting above-mentioned technical scheme, when the lithium cell box received external force, the gum cover that fills can play the cushioning effect to group battery and BMS protection shield, makes the difficult emergence collision of group battery, can reduce the possibility of group battery collision damage, and then promotes the life of lithium cell box.

Optionally, a fixing member is arranged between the outer wall of the filling rubber sleeve and the inner wall of the bottom shell, the fixing member comprises a fixing block arranged on the inner wall of the bottom shell, a fixing groove is formed in the filling rubber sleeve, and the fixing block is inserted into the fixing groove.

Through adopting above-mentioned technical scheme, the fixed block of drain pan is inserted and is located the fixed slot, can increase the stability of drain pan and filling gum cover to promote the overall stability of lithium cell case.

Optionally, a radiator is arranged on the support frame, the radiator is an aluminum sheet, and a connector clip is arranged between the radiator and the support frame.

Through adopting above-mentioned technical scheme, have good heat conductivity through the aluminum sheet, can in time lead outwards the heat that the battery unit produced to reduce the heat that the battery unit during operation produced and gather the possibility that leads to the battery unit swell at the battery unit, thereby promote the life of lithium cell box.

Optionally, the plug connector comprises a plug block arranged on the heat sink, and a plug groove adapted to the plug block is arranged on the support frame.

Through adopting above-mentioned technical scheme, the fixed mode of radiator and support frame grafting is simple swift, and the operating personnel of being convenient for installs radiator and support frame.

Optionally, the surface of the radiator is provided with heat insulation cotton.

Through adopting above-mentioned technical scheme, when support frame interconnect, thermal-insulated cotton can carry out the separation to the heat that adjacent battery unit produced, reduces the heat that the battery unit produced and to the possibility that adjacent battery unit gathered, further reduces the possibility of battery unit swell, promotes lithium cell box's life.

To sum up, the application comprises the following beneficial technical effects:

1. the battery unit, the heat insulation cotton and the radiator are arranged on the support frames, and the support frames are clamped with each other, so that the assembling steps of the lithium battery box can be simplified, the assembling difficulty of the lithium battery box is reduced, and the production efficiency of the lithium battery box is improved; meanwhile, the heat radiator and the heat radiation cotton can reduce the accumulation of heat in the lithium battery box, reduce the possibility of bulge of the battery box and prolong the service life of the lithium battery box;

2. the fixing frame can enhance the connection stability of the BMS protection board and the battery pack, so that the internal structure of the lithium battery box is more compact, and the overall stability of the lithium battery box is improved;

3. the filling rubber sleeve can reduce the possibility that the battery pack is damaged when the lithium battery box is impacted by external force, so that the lithium battery box is more durable.

Drawings

Fig. 1 is a schematic overall structure diagram of a simple assembly system of a new energy lithium battery according to an embodiment of the present application.

Fig. 2 is an exploded schematic view of a simple assembly system of a new energy lithium battery according to an embodiment of the present application.

Fig. 3 is an exploded structure schematic view of a battery pack.

Fig. 4 is a schematic view of the overall structure of the support frame.

Fig. 5 is another structural schematic diagram of the support frame.

Fig. 6 is an enlarged schematic view of a in fig. 3.

Fig. 7 is a schematic view of the assembly of the battery unit with the support frame.

Fig. 8 is an exploded structural view of the battery pack and the BMS protection plate.

Fig. 9 is an enlarged structural diagram of B in fig. 2.

Description of reference numerals:

11. a face shell; 111. a handle; 112. a groove; 113. a gas release valve; 12. a bottom case; 121. a fixed block; 2. a battery pack; 21. a support frame; 211. a mounting surface; 2111. a card slot; 212. inserting surfaces; 2121. clamping the column; 213. inserting grooves; 214. a dovetail groove; 215. a placement groove; 22. a battery cell; 23. heat insulation cotton; 24. a heat sink; 241. an interface; 242. an insertion block; 25. a clamping plate; 3. a BMS protection board; 31. a dovetail block; 4. a fixed mount; 5. filling a rubber sleeve; 51. and fixing the grooves.

Detailed Description

The present application is described in further detail below.

The embodiment discloses a simple assembly system of a new energy lithium battery, which comprises a face shell 11 and a bottom shell 12, and is shown in fig. 1. Referring to fig. 2, a battery pack 2 is disposed inside the bottom case 12, and a fixing frame 4 and a rubber filling sleeve 5 are disposed between the bottom case 12 and the battery pack 2. Referring to fig. 3, the battery pack 2 includes a plurality of stand frames 21, battery cells mounted on the stand frames 21, a heat sink 24, and heat insulation wool 23.

Referring to fig. 1, the face shell 11 has an inverted rectangular box shape, and the top surface thereof is provided with an air release valve 113. The top surface of the panel case 11 is provided with a grip 111 for grasping. The handle 111 is long and horizontally disposed, and the longitudinal direction thereof is parallel to the longitudinal direction of the panel case 11. Both ends of the handle 111 in the length direction are bent downward and fixedly connected with the top surface of the panel case 11. A recess 112 is provided on the top surface of the panel case 11 below the handle 111 to facilitate a user to grasp the handle 111.

Referring to fig. 2, a bottom case 12 is disposed under the front case 11. The bottom case 12 is a vertically placed rectangular parallelepiped shape, and has an open top surface. The face shell 11 is installed at the opening of the bottom shell 12, and the face shell 11 and the bottom shell 12 jointly form an outer shell of the lithium battery box. The front case 11 and the bottom case 12 may be screwed by bolts.

The battery pack 2 is provided in the bottom case 12. Referring to fig. 3, the battery pack 2 includes a plurality of battery cells 22 and a plurality of holder frames 21. The battery unit 22 is in the form of a long plate, and is vertically disposed along the length direction, and the plate surface is parallel to one side of the bottom case 12 in the horizontal length direction. The support frame 21 is a rectangular frame, and is vertically arranged along the length direction, and the frame surface is parallel to the plate surface of the battery unit 22. Referring to fig. 4, a receiving groove 215 for receiving the battery cell 22 is provided at an inner edge of the mounting frame. The placement groove 215 is formed by extending the inner edge of the bracket frame 21 toward the center of the mounting frame. When the battery unit 22 is mounted, the battery unit 22 is mounted in the placement groove 215. The edge of the battery cell 22 abuts against the inner wall of the placement groove 215.

With reference to fig. 4 to 5, the bracket frame 21 includes an insertion surface 212 and a mounting surface 211. A clamping piece is arranged between the mounting surface 211 and the inserting surface 212 of the adjacent bracket frame 21. The clamping piece comprises a plurality of clamping columns 2121 arranged on the insertion surface 212, the clamping columns 2121 are long columnar and are horizontally arranged, and one end in the length direction is fixedly connected with the support frame 21. The plurality of clamping posts 2121 are respectively positioned at the corners of the support frame 21. A notch 2111 is provided at a position corresponding to the catch 2121 on the mounting surface 211. Card slot 2111 mates with card post 2121. The adjacent support frames 21 are mutually clamped.

Referring to fig. 3, the heat sink 24 is disposed on the insertion surface 212 of the support frame 21. The heat sink 24 is made of aluminum sheet. The heat sink 24 is in the form of a long plate, and is disposed vertically, and the plate surface is parallel to the frame surface of the support frame 21. Referring to fig. 6, an insertion port 241 is provided at an upper portion of the plate surface of the heat sink 24, and the insertion port 241 is inserted into and engaged with a clip 2121 of the bracket frame 21 to further fix the heat sink 24. The edges of both sides of the heat sink 24 in the longitudinal direction are bent toward the inside of the holder frame 21 to form insertion blocks 242. Referring to fig. 4, insertion grooves 213 are formed on outer walls of both sides of the holder frame 21 in the longitudinal direction. The size of the insertion slot 213 is matched with the insertion block 242, so that the bracket frame 21 is inserted into the heat sink 24.

The heat sink 24 is mounted to the mating surface 212 of the mounting frame. Referring to fig. 3, the heat sink 24 is provided with heat insulation cotton 23 on the surface thereof away from the plugging surface 212. The heat insulation cotton 23 is in the shape of a long plate and is vertically arranged along the length direction, and the plate surface is parallel to the plate surface of the radiator 24. The plate surface of the heat insulation cotton 23 is bonded with the surface of the radiator 24 far away from the inserting surface 212.

Referring to fig. 7 to 8, a BMS protection plate 3 is provided at one end of the battery pack 2 in the horizontal length direction. BMS protection shield 3 is long platelike, along the vertical setting of length direction, and the face is perpendicular with the frame face of installing frame. A sliding member is provided between the BMS protection plate 3 and the battery pack 2. The sliding member includes a plurality of dovetail blocks 31 provided on the surface of the BMS protection plate 3 near the support frame 21. A plurality of dovetail blocks 31 are respectively positioned at the upper and lower portions of the panel surface of the BMS protection panel 3. A dovetail groove 214 is provided at the corresponding outer edges of the bracket frame 21 and the dovetail block 31 of the BMS protection plate 3. The dovetail groove 214 is fitted to the dovetail block 31. After the plurality of support frames 21 are clamped, the plurality of dovetail grooves 214 are combined with each other to form an elongated slot. The BMS protection plate 3 is slidably connected with the battery pack 2.

Referring to fig. 2, a fixing frame 4 is provided between the battery pack 2 and the bottom end of the BMS protection plate 3 and the inner wall of the bottom case 12. The fixing frame 4 is in a rectangular flat box shape, the top surface and one end in the length direction are opened, and the bottom surface of the fixing frame 4 is provided with a communicating hole. The outer diameter of the communicating hole is smaller than the inner diameter of the bottom surface of the fixing frame 4. The fixing frame 4 is sleeved on the outer side walls of the battery pack 2 and the BMS protection plate 3, and the fixing frame 4 is inserted into the bottom case 12 and abuts against the inner wall of the inside of the base. The fixing frame 4 can improve the connection stability with the bottom case 12 after the battery pack 2 and the BMS protection plate 3 are combined.

A plurality of clamping plates 25 are arranged on the outer side wall of the battery pack 2. The holding plate 25 is a long plate and is vertically arranged in the longitudinal direction. The upper part of the surface of the clamping plate 25 is provided with a through hole. The clamping column 2121 of the support frame 21 is inserted into the through hole and sleeved outside the clamping plate 25 through the fixing frame 4 to fix the clamping plate 25. A plurality of clamping plates 25 are provided around the battery pack 2 except the outer side wall connected to the BMS protection plate 3.

A filling rubber sleeve 5 is arranged between the outer side walls of the battery pack 2 and the BMS protection plate 3 and the inner wall of the bottom case 12. The filling rubber sleeve 5 is in the shape of a cuboid box, the top surface and the bottom surface are open, and the length direction is the same as that of the battery pack 2. The potting compound 5 is made of an elastic material. The outer parts of the battery pack 2 and the BMS protection board 3 are sleeved with the filling rubber sleeve 5, and the outer wall of the filling rubber sleeve 5 is abutted against the inner wall of the bottom case 12. After the battery pack 2 is fixed and mounted to the BMS protection plate 3 in the bottom case 12, a glue is poured into the bottom case 12 to form a filling rubber pouch 5.

Referring to fig. 9, a fixing member is disposed between the filling rubber sleeve 5 and the inner wall of the bottom casing 12. The fixing member includes a plurality of fixing blocks 121 disposed on an inner wall of the bottom case 12. The fixing block 121 may be a long block having a T-shaped or arc-shaped cross section and vertically disposed. The arc-shaped fixing block 121 and the T-shaped fixing block 121 are spaced apart from each other along the inner wall of the bottom case 12. One side of the T-shaped fixing block 121 facing the center of the bottom case 12 is T-shaped. The other end of the T-shaped fixing block 121 is fixedly connected to the inner wall of the bottom case 12. The arc-shaped long block is hollow inside, and an opening facing the center of the bottom case 12 is left at the edge and is communicated with the inside of the arc-shaped fixed block 121. The outer wall of the rubber filling sleeve 5 is correspondingly provided with a fixing groove 51, and the fixing groove 51 is matched with the fixing block 121.

The implementation principle of the simple assembling system of the new energy lithium battery of the embodiment is as follows: when assembling the lithium battery box, firstly, the battery unit 22 is placed in the support frame 21, the radiator 24 is inserted and connected, and the heat insulation cotton 23 is bonded on the radiator 24; then, the plurality of support frames 21 are clamped to form the battery pack 2 and connected with the BMS protection plate 3, the fixing frame 4 is sleeved outside the battery pack 2 and the BMS protection plate 3 after connection, and the combined battery pack 2 is connected with the face mask and is installed in the bottom shell 12. The battery unit 22 is fixed in a clamping mode between the support frames 21, so that the fixing mode of the battery unit 22 is simplified, the assembly difficulty of the battery pack 2 is reduced, and the production efficiency of the lithium battery box is increased. And, heat sink 24 and thermal-insulated cotton 23 can reduce the heat that lithium cell box produced in the use and gather to reduce the heat and gather the possibility that causes the lithium cell box bulge, thereby increase lithium cell box's life.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Simple and easy equipment system of new forms of energy lithium cell, including face-piece (11), drain pan (12) and BMS protection shield (3) with face-piece (11) matched with, its characterized in that: the battery support frame is characterized by further comprising a plurality of support frames (21), each support frame (21) comprises an installation surface (211) and an insertion surface (212), a placing groove (215) for placing a battery unit (22) is formed in each insertion surface (212), and a clamping piece is arranged between the installation surface (211) and the insertion surface (212) of each adjacent support frame (21); a plurality of support frames (21) are combined to form a battery pack (2), and a sliding part is arranged between the battery pack (2) and a BMS protection plate (3).

2. The simple assembly system of the new energy lithium battery as claimed in claim 1, wherein: the clamping piece comprises clamping columns (2121) arranged on the inserting surfaces (212) of the support frames (21), clamping grooves (2111) are correspondingly arranged on the mounting surfaces (211) of the adjacent support frames (21), and the clamping columns (2121) are clamped with the clamping grooves (2111).

3. The simple assembly system of the new energy lithium battery as claimed in claim 1, wherein: the sliding piece comprises a dovetail block (31) arranged on the surface of the BMS protection plate (3), and a dovetail groove (214) matched with the dovetail block (31) is arranged on the support frame (21).

4. The simple assembly system of the new energy lithium battery as claimed in claim 1, wherein: the outer wall cover of BMS protection shield (3) and group battery (2) is equipped with mount (4), the edge of mount (4) and the inner wall butt of drain pan (12).

5. The simple assembly system of the new energy lithium battery as claimed in claim 1, wherein: the outer wall of the battery pack (2) is provided with a filling rubber sleeve (5) made of elastic materials, and the outer wall of the filling rubber sleeve (5) is abutted to the inner wall of the bottom shell (12).

6. The simple assembly system for the new energy lithium battery as claimed in claim 5, wherein: a fixing piece is arranged between the outer wall of the filling rubber sleeve (5) and the inner wall of the bottom shell (12), the fixing piece comprises a fixing block (121) arranged on the inner wall of the bottom shell (12), a fixing groove (51) is arranged on the filling rubber sleeve (5), and the fixing block (121) is inserted into the fixing groove (51).

7. The simple assembly system of the new energy lithium battery as claimed in claim 1, wherein: a radiator (24) is arranged on the support frame (21), the radiator (24) is made of an aluminum sheet, and a plug connector is arranged between the radiator (24) and the support frame (21).

8. The simple assembly system for the new energy lithium battery as claimed in claim 7, wherein: the plug connector comprises a plug-in block (242) arranged on the radiator (24), and a plug-in groove (213) matched with the plug-in block (242) is arranged on the support frame (21).

9. The simple assembly system for the new energy lithium battery as claimed in claim 7, wherein: and heat insulation cotton (23) is arranged on the surface of the radiator (24).