CN216084984U

CN216084984U - Lithium battery cell with packaging die head structure

Info

Publication number: CN216084984U
Application number: CN202122299313.XU
Authority: CN
Inventors: 刘传奇
Original assignee: Huainan Shengqi New Energy Technology Co ltd
Current assignee: Huainan Shengqi New Energy Technology Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-18
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a lithium battery cell with a packaging die head structure, and relates to the technical field of lithium batteries. The improved battery pack is characterized by comprising an outer shell, a battery cell body is fixedly mounted between the inner walls of the outer shell, a negative terminal and a positive terminal are sequentially arranged on the upper surface of the battery cell body from left to right, a polar plate is fixedly mounted on the upper surfaces of the negative terminal and the positive terminal, a die head body is mounted on the upper surface of the outer shell corresponding to a rectangular frame through a buckle mechanism, two sets of pressing mechanisms are arranged on the upper side inner wall of the die head body and correspond to the negative terminal and the positive terminal, a pole cap is fixedly mounted between the pressing mechanisms, and a connecting cable is fixedly mounted on the upper surface of the pole cap. According to the utility model, the die head body can be conveniently mounted through the buckle mechanism, the processing efficiency is improved, the damage to the battery cell body is avoided, the polar plate and the polar cap can be stably contacted through the pressing mechanism, the normal use of a connecting cable is ensured, and the production quality is improved.

Description

Lithium battery cell with packaging die head structure

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery cell with a packaging die head structure.

Background

The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery.

In the prior art, the traditional lithium battery cell mounting and packaging die head is generally assembled by using screws or a welding mode, the production efficiency is low, the cell is easily damaged, the lithium battery is damaged, and the problem that the lithium battery cannot be contacted with positive and negative plates can occur after the packaging die head is mounted, so that the lithium battery cannot be normally used.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lithium battery cell with a packaging die head structure, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a lithium cell electricity core with encapsulation die head structure, includes the shell, fixed mounting has electric core body between the inner wall of shell, the upper surface of electric core body has set gradually negative terminal and positive terminal from a left side to the right side, the equal fixed mounting of upper surface of negative terminal and positive terminal has the polar plate, the last fixed surface of shell installs the rectangle frame, the die head body is installed through buckle mechanism to the corresponding shell upper surface of rectangle frame, the upside inner wall of die head body all is provided with two sets of hold-down mechanism with negative terminal and positive terminal corresponding position, fixed mounting has the polar cap between the hold-down mechanism, and the polar cap lid is located on negative terminal and the positive terminal, the last fixed surface of polar cap installs the connecting cable, the connecting cable is inserted and is located the upside wall outside of die head body.

Furthermore, insulating sleeves are arranged on the upper side wall of the shell and the positions, corresponding to the negative terminal and the positive terminal, of the battery cell body.

Further, buckle mechanism includes uide bushing, first spring, fixture block and draw-in groove, all be provided with the uide bushing on the inner wall all around of die head body, and equal fixed mounting has first spring on the die head body inner wall that the uide bushing corresponds, the side that first spring is close to the rectangle frame all is provided with the fixture block, the draw-in groove has been seted up on the rectangle frame lateral wall that the fixture block corresponds, the fixture block buckle is in the draw-in groove.

Furthermore, the lower side edge positions of the peripheral inner wall of the die head body are fixedly provided with rubber sealing rings, and the lower surfaces of the rubber sealing rings are attached to the upper surface of the shell.

Further, hold-down mechanism includes second spring, fixed block and guide bar, second spring fixed mounting is on the upside inner wall of die head body, the lower fixed surface of second spring installs the fixed block, and fixed block and utmost point cap fixed connection, surface mounting has the guide bar on the fixed block.

Furthermore, a sealing element is fixedly arranged on the die head body at a position corresponding to the connecting cable.

Compared with the prior art, the utility model provides a lithium battery cell with a packaging die head structure, which has the following beneficial effects:

1. this lithium battery cell with encapsulation die head structure installs on the rectangle frame through setting up buckle mechanism buckle, makes the die head body be connected fixedly with the shell, and the die head body of being convenient for installs, improves machining efficiency, and avoids damaging electric core body.

2. This lithium battery cell with encapsulation die head structure drives the polar cap downstream through setting up hold-down mechanism, makes the polar cap lid locate the polar plate upper surface, guarantees polar cap and polar plate and can remain the contact throughout, guarantees the normal use of connecting cable, improves production quality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2.

In the figure: 1. a housing; 2. a cell body; 3. a negative terminal; 4. a positive terminal; 5. a polar plate; 6. a rectangular frame; 7. a buckle mechanism; 701. a guide sleeve; 702. a first spring; 703. a clamping block; 704. a card slot; 8. a die head body; 9. a hold-down mechanism; 901. a second spring; 902. a fixed block; 903. a guide bar; 10. a pole cap; 11. connecting a cable; 12. an insulating sleeve; 13. a rubber seal ring; 14. and a seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the utility model discloses a lithium battery cell with a packaging die head structure, which comprises a housing 1, wherein a cell body 2 is fixedly installed between the inner walls of the housing 1, a negative terminal 3 and a positive terminal 4 are sequentially arranged on the upper surface of the cell body 2 from left to right, polar plates 5 are fixedly installed on the upper surfaces of the negative terminal 3 and the positive terminal 4, a rectangular frame 6 is fixedly installed on the upper surface of the housing 1, a die head body 8 is installed on the upper surface of the housing 1 corresponding to the rectangular frame 6 through a buckle mechanism 7, two groups of pressing mechanisms 9 are respectively arranged on the upper inner wall of the die head body 8 and at positions corresponding to the negative terminal 3 and the positive terminal 4, a polar cap 10 is fixedly installed between the pressing mechanisms 9, the polar cap 10 covers the negative terminal 3 and the positive terminal 4, a connecting cable 11 is fixedly installed on the upper surface of the polar cap 10, the length of the connection cable 11 located inside the die body 8 has a moving amount, and the connection cable 11 is inserted outside the upper sidewall of the die body 8.

Specifically, the insulating sleeves 12 are arranged on the upper side wall of the housing 1 and the positions, corresponding to the negative terminal 3 and the positive terminal 4, of the cell body 2.

In this embodiment, the insulating sleeve 12 prevents the negative terminal 3 and the positive terminal 4 from contacting each other, thereby ensuring normal use of the lithium battery.

Specifically, the fastening mechanism 7 includes a guide sleeve 701, a first spring 702, a fastening block 703 and a fastening groove 704, the guide sleeve 701 is disposed on the inner wall of the die head body 8, the first spring 702 is fixedly mounted on the inner wall of the die head body 8 corresponding to the guide sleeve 701, the fastening block 703 is disposed on the side surface of the first spring 702 close to the rectangular frame 6, the fastening groove 704 is disposed on the side wall of the rectangular frame 6 corresponding to the fastening block 703, and the fastening block 703 is fastened in the fastening groove 704.

In this embodiment, the lower surface of the clamping block 703 and the side surface close to the rectangular frame 6 are inclined surfaces, so that the clamping block 703 is convenient to contract, the first spring 702 pushes the clamping block 703 to move towards the clamping groove 704, the clamping block 703 is inserted into the clamping groove 704 of the rectangular frame 6, and the die head body 8 is connected and fixed with the housing 1.

Specifically, rubber seal ring 13 is fixedly mounted at the lower side edge position of the peripheral inner wall of the die head body 8, and the lower surface of the rubber seal ring 13 is attached to the upper surface of the shell 1.

In this embodiment, rubber seal 13 seals between shell 1 upper surface and the lower surface of die head body 8, avoids the rainwater to get into.

Specifically, the pressing mechanism 9 includes a second spring 901, a fixing block 902 and a guide rod 903, the second spring 901 is fixedly mounted on the inner wall of the upper side of the die head body 8, the lower surface of the second spring 901 is fixedly mounted with the fixing block 902, the fixing block 902 is fixedly connected with the pole cap 10, and the guide rod 903 is mounted on the upper surface of the fixing block 902.

In this embodiment, the second spring 901 pushes the fixing block 902 downward, the fixing block 902 drives the pole cap 10 to move downward, and the pole cap 10 can stably cover the pole plate 5, so that the pole cap 10 and the pole plate 5 are always kept in contact.

Specifically, a sealing member 14 is fixedly mounted on the die head body 8 at a position corresponding to the connecting cable 11.

In this embodiment, the sealing member 14 seals the installation position of the die body 8 and the connecting cable 11, and the waterproof effect is good.

When using, locate the upper surface of shell 1 with die head body 8 lid, first spring 702 promotes fixture block 703 and removes to draw-in groove 704 direction in buckle mechanism 7, make fixture block 703 insert in the draw-in groove 704 of rectangle frame 6, make die head body 8 be connected fixedly with shell 1, die head body 8 of being convenient for installs, machining efficiency is improved, and avoid damaging electric core body 2, second spring 901 promotes fixed block 902 downwards in rethread pressing mechanism 9, fixed block 902 drives utmost point cap 10 and removes downwards, the lid that utmost point cap 10 can be stable is established on polar plate 5, make utmost point cap 10 and polar plate 5 remain the contact throughout, guarantee the normal use of connecting cable 11, and production quality is improved.

To sum up, this lithium battery cell with encapsulation die head structure installs through buckle mechanism 7 die head body 8 of being convenient for, improves machining efficiency, and avoids damaging electric core body 2, guarantees through hold-down mechanism 9 that polar plate 5 and utmost point cap 10 can the stable contact, guarantees connecting cable 11's normal use, improves production quality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 a lithium battery electricity core with encapsulation die head structure, includes shell (1), its characterized in that: an electric core body (2) is fixedly installed between the inner walls of the shell (1), a negative terminal (3) and a positive terminal (4) are sequentially arranged on the upper surface of the electric core body (2) from left to right, polar plates (5) are fixedly installed on the upper surfaces of the negative terminal (3) and the positive terminal (4), a rectangular frame (6) is fixedly installed on the upper surface of the shell (1), corresponding to the rectangular frame (6), a die head body (8) is installed on the upper surface of the shell (1) through a buckle mechanism (7), two groups of pressing mechanisms (9) are arranged on the positions, corresponding to the negative terminal (3) and the positive terminal (4), of the inner wall of the upper side of the die head body (8), a polar cap (10) is fixedly installed between the pressing mechanisms (9), the polar cap (10) covers the negative terminal (3) and the positive terminal (4), and a connecting cable (11) is fixedly installed on the upper surface of the polar cap (10), the connecting cable (11) is inserted outside the upper side wall of the die head body (8).

2. The lithium battery cell with the encapsulation die head structure of claim 1, wherein: and insulating sleeves (12) are arranged on the upper side wall of the shell (1) and the positions, corresponding to the negative terminal (3) and the positive terminal (4), of the battery cell body (2).

3. The lithium battery cell with the encapsulation die head structure of claim 1, wherein: the clamping mechanism (7) comprises a guide sleeve (701), a first spring (702), a clamping block (703) and a clamping groove (704), the guide sleeve (701) is arranged on the inner wall of the die head body (8) at the periphery, the first spring (702) is fixedly arranged on the inner wall of the die head body (8) corresponding to the guide sleeve (701), the clamping block (703) is arranged on the side face, close to the rectangular frame (6), of the first spring (702), the clamping groove (704) is formed in the side wall of the rectangular frame (6) corresponding to the clamping block (703), and the clamping block (703) is clamped in the clamping groove (704).

4. The lithium battery cell with the encapsulation die head structure of claim 1, wherein: the die head is characterized in that rubber sealing rings (13) are fixedly mounted at the lower side edge positions of the peripheral inner walls of the die head body (8), and the lower surfaces of the rubber sealing rings (13) are attached to the upper surface of the shell (1).

5. The lithium battery cell with the encapsulation die head structure of claim 1, wherein: the pressing mechanism (9) comprises a second spring (901), a fixing block (902) and a guide rod (903), the second spring (901) is fixedly installed on the inner wall of the upper side of the die head body (8), the fixing block (902) is fixedly installed on the lower surface of the second spring (901), the fixing block (902) is fixedly connected with the pole cap (10), and the guide rod (903) is installed on the upper surface of the fixing block (902).

6. The lithium battery cell with the encapsulation die head structure of claim 1, wherein: and a sealing element (14) is fixedly arranged on the die head body (8) at a position corresponding to the connecting cable (11).