CN217405630U - Cylindrical lithium ion battery explosion-proof structure - Google Patents

Abstract

The utility model discloses a cylindricality lithium ion battery explosion-proof structure, this cylindricality lithium ion battery explosion-proof structure aim at solving prior art and can not effectively play explosion-proof effect down, and the exhaust department intakes easily, uses comparatively not inconvenient technical problem. The explosion-proof structure comprises an equipment shell; the inside of equipment shell is provided with the buffering subassembly, the buffering subassembly is provided with two sets ofly, the inside of equipment shell is provided with the lime layer, the inside of buffering subassembly is provided with battery main part, battery main part's the outside with the inboard interconnect on lime layer, the upper end of equipment shell is provided with the rubber shrouding. This cylindricality lithium ion battery explosion-proof construction only needs to carry out the buffering processing through the setting of buffering subassembly to battery main part, carries out exhaust treatment to inside through the setting of exhaust subassembly, and the moisture in admitting air is absorbed through the setting on lime layer and is handled to lithium ion battery's high-efficient explosion-proof and water repellent has been realized.

Description

Cylindrical lithium ion battery explosion-proof structure

Technical Field

The utility model belongs to the technical field of lithium ion battery, concretely relates to cylindricality lithium ion battery explosion-proof construction.

Background

Nowadays, with the rapid development of electronic devices, the requirements for mobile power sources are higher and higher, lithium ion batteries generally adopt materials containing lithium elements as electrodes, which are representative of modern high-performance batteries, and real lithium batteries are rarely applied to daily electronic products due to high dangerousness.

At present, the utility model patent with patent number CN200720051805.4 discloses a cylindrical lithium ion battery structure which has simple manufacturing process and can effectively ensure the safety and stability of the battery. The protective cap of the battery fixes the top cover, the explosion-proof valve and the metal ring into a whole in an injection molding mode through the insulator, the metal ring is positioned on the periphery of the insulator, and the edge of the metal ring is welded with the opening at the upper end of the tank body so as to fixedly connect the protective cap on the tank body. After the technical scheme is adopted, the tank body does not need to be provided with the rolling groove for installing the protective cap, the tank body and the protective cap can be fixedly welded by directly adopting a laser welding mode, and the whole production process is very simple. Meanwhile, the whole protective cap is fixed into a whole through the insulator, the whole structure is more stable, and the short circuit condition cannot occur. Additionally, the utility model discloses increased exhaust structure in the bottom of the jar body, can further ensure the security and the stability of battery. The lithium ion battery adopts the exhaust structure to perform exhaust treatment, but the lithium ion battery cannot effectively play an explosion-proof effect in the use process, and the exhaust part is easy to enter water, so that the lithium ion battery is not inconvenient to use.

Therefore, in order to solve the problem that the explosion-proof structure of the daily cylindrical lithium ion battery cannot be effectively explosion-proof after being used, the practicability of the device needs to be improved.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

Not enough to prior art, the utility model aims to provide a cylindricality lithium ion battery explosion-proof structure, this cylindricality lithium ion battery explosion-proof structure aim at solving prior art down can not effectively play explosion-proof effect, and the exhaust department intakes easily, uses comparatively inconvenient technical problem.

(2) Technical scheme

In order to solve the technical problem, the utility model provides an explosion-proof structure of a cylindrical lithium ion battery, which comprises an equipment shell; the inboard of equipment shell is provided with the buffering subassembly, the buffering subassembly is provided with two sets ofly, the inboard of equipment shell is provided with the lime layer, the inboard of buffering subassembly is provided with battery subject, battery subject's the outside with the inboard interconnect on lime layer, the upper end of equipment shell is provided with the rubber shrouding, the upper end of rubber shrouding is provided with anodal sheetmetal, the constant head tank has been seted up to the upper end of rubber shrouding, the inboard reservation of constant head tank has the exhaust subassembly, the bottom fixed mounting of equipment shell has the negative pole sheetmetal.

When the cylindrical lithium ion battery explosion-proof structure of the technical scheme is used, the battery main body is buffered through the arrangement of the buffering component, the inside is exhausted through the arrangement of the exhaust component, and the moisture in the air is absorbed through the arrangement of the lime layer, so that the efficient explosion-proof and waterproof treatment of the lithium ion battery is realized.

Preferably, the inside of buffering subassembly is including the holding ring, the holding ring set up in battery body's the outside, battery body with the holding ring block is connected, the outside fixed mounting of holding ring has a fixed section of thick bamboo, installs the processing through the setting of holding ring to battery body.

Furthermore, the inside of buffering subassembly is including the dead lever, dead lever fixed mounting is in the inboard of equipment shell, the dead lever with a fixed section of thick bamboo sliding connection carries out spacing removal processing to first spring through the sliding connection of a fixed section of thick bamboo and dead lever.

Still further, the inside of buffering subassembly is including first spring, first spring set up in the outside of dead lever, the one end of first spring with the outside interconnect of holding ring rocks the buffering through setting up of first spring to the holding ring and handles.

Preferably, exhaust assembly's inside is including the air discharge duct, the air discharge duct seted up in the inboard of rubber shrouding, the inboard of air discharge duct is provided with the rubber buffer, the rubber buffer with air discharge duct sliding connection, atmospheric pressure promote the rubber buffer along air discharge duct rebound, guide the processing to the rubber buffer.

Further, the inside of exhaust subassembly is including the baffle, baffle fixed mounting be in the inboard of air discharge duct, the upper end fixed mounting of rubber buffer has the push rod, the push rod with baffle sliding connection removes spacing processing to the rubber buffer through the sliding connection of push rod and baffle.

Still further, the inside of exhaust subassembly is including the second spring, the second spring set up in the inboard of air discharge duct, the bottom of second spring with the upper end interconnect of rubber buffer, dysmorphism groove has been seted up to the inboard of rubber shrouding, the air discharge duct passes through dysmorphism groove with constant head tank intercommunication, carry out on-off control to dysmorphism groove through setting up of second spring, derive the processing through dysmorphism groove to inside gas.

(3) Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a cylindricality lithium ion battery explosion-proof structure installs the processing through setting up of holding ring to the battery main part, set up through first spring and rock the buffer treatment to the holding ring, sliding connection through solid fixed cylinder and dead lever carries out spacing removal processing to first spring, when the inside atmospheric pressure of equipment shell is too high, atmospheric pressure promotes the rubber buffer along the air discharge duct rebound, block to the dysmorphism groove through the rubber buffer cancellation, gaseous derivation from the dysmorphism groove, gaseous derivation back, the second spring promotes the push rod and removes, promote the rubber buffer through the push rod and remove the department of admitting air to the dysmorphism groove, sliding connection through push rod and baffle removes spacing processing to the rubber buffer, moisture in the setting through the lime layer absorbs the processing, thereby realized high-efficient explosion-proof and waterproof processing to lithium ion battery.

Drawings

Fig. 1 is a schematic three-dimensional structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a cross-section of an embodiment of the present invention;

fig. 4 is a schematic structural view of a partial section according to an embodiment of the present invention.

The labels in the figures are: 1. an equipment housing; 2. a buffer assembly; 3. a lime layer; 4. a battery main body; 5. a rubber seal plate; 6. a positive electrode metal sheet; 7. positioning a groove; 8. an exhaust assembly; 9. a negative electrode metal piece; 10. a positioning ring; 11. a fixed cylinder; 12. fixing the rod; 13. a first spring; 14. an exhaust duct; 15. a rubber plug; 16. a baffle plate; 17. a push rod; 18. a second spring; 19. a special-shaped groove.

Detailed Description

Example 1

The specific embodiment is an explosion-proof structure for a cylindrical lithium ion battery, a schematic perspective structure of the explosion-proof structure is shown in fig. 1, a schematic development structure of the explosion-proof structure is shown in fig. 2, and the explosion-proof structure comprises an equipment shell 1; the inboard of equipment shell 1 is provided with buffering subassembly 2, buffering subassembly 2 is provided with two sets ofly, the inboard of equipment shell 1 is provided with lime layer 3, the inboard of buffering subassembly 2 is provided with battery subject 4, the outside of battery subject 4 and the inboard interconnect of lime layer 3, the upper end of equipment shell 1 is provided with rubber shrouding 5, the upper end of rubber shrouding 5 is provided with anodal sheetmetal 6, constant head tank 7 has been seted up to the upper end of rubber shrouding 5, the inboard reservation of constant head tank 7 has exhaust subassembly 8, the bottom fixed mounting of equipment shell 1 has negative pole sheetmetal 9.

For the present embodiment, the shape and structure of the device housing 1 are set according to practical application, for example, the device housing 1 may have a rectangular structure, an arc structure, a polygonal structure, and the like.

Wherein, the inside of buffering subassembly 2 is including holding ring 10, holding ring 10 sets up in the outside of battery body 4, battery body 4 is connected with holding ring 10 block, the outside fixed mounting of holding ring 10 has a fixed cylinder 11, install the processing through setting up of holding ring 10 to battery body 4, the inside of buffering subassembly 2 is including dead lever 12, dead lever 12 fixed mounting is in the inboard of equipment shell 1, dead lever 12 and 11 sliding connection of fixed cylinder, sliding connection through fixed cylinder 11 and dead lever 12 carries out spacing removal processing to first spring 13.

This embodiment is used for cylindricality lithium ion battery explosion-proof construction, its section structure schematic diagram is shown in fig. 3, its local section structure schematic diagram is shown in fig. 4, the inside of buffer unit 2 is including first spring 13, first spring 13 sets up in the outside of dead lever 12, the one end of first spring 13 and the outside interconnect of holding ring 10, set up through first spring 13 and rock the buffer processing to holding ring 10, the inside of exhaust unit 8 is including exhaust duct 14, exhaust duct 14 opens the inboard at rubber shrouding 5, the inboard of exhaust duct 14 is provided with rubber buffer 15, rubber buffer 15 and exhaust duct 14 sliding connection, atmospheric pressure promotes rubber buffer 15 and upwards removes along exhaust duct 14, guide processing is carried out to rubber buffer 15.

Simultaneously, exhaust assembly 8's inside is including baffle 16, baffle 16 fixed mounting is in exhaust groove 14's inboard, rubber buffer 15's upper end fixed mounting has push rod 17, push rod 17 and baffle 16 sliding connection, sliding connection through push rod 17 and baffle 16 removes spacing processing to rubber buffer 15, exhaust assembly 8's inside is including second spring 18, second spring 18 sets up in exhaust groove 14's inboard, second spring 18's bottom and rubber buffer 15's upper end interconnect, dysmorphism groove 19 has been seted up to rubber shrouding 5's inboard, exhaust groove 14 communicates with constant head tank 7 through dysmorphism groove 19, carry out on-off control to dysmorphism groove 19 through setting up of second spring 18, carry out the derivation processing to internal gas through dysmorphism groove 19.

When the cylindrical lithium ion battery explosion-proof structure of the technical scheme is used, the battery main body 4 is installed through the arrangement of the positioning ring 10, the positioning ring 10 is subjected to shaking buffering treatment through the arrangement of the first spring 13, the first spring 13 is subjected to limiting movement treatment through the sliding connection between the fixed cylinder 11 and the fixed rod 12, when the air pressure in the equipment shell 1 is too high, the air pressure pushes the rubber plug 15 to move upwards along the air exhaust groove 14, the rubber plug 15 is used for removing the blockage of the special-shaped groove 19, gas is led out from the special-shaped groove 19, after the gas is led out, the second spring 18 pushes the push rod 17 to move, the push rod 17 pushes the rubber plug 15 to move to the air inlet of the special-shaped groove 19, the push rod 17 is in sliding connection with the baffle 16 to perform movement limiting treatment on the rubber plug 15, the lime layer 3 is arranged to absorb the moisture in the air inlet, so that the high-efficiency explosion-proof and waterproof treatment of the lithium ion battery is realized.

Claims (7)

1. An explosion-proof structure of a cylindrical lithium ion battery comprises an equipment shell; the device is characterized in that a buffering assembly is arranged on the inner side of the device shell, the buffering assembly is provided with two groups, a lime layer is arranged on the inner side of the device shell, a battery main body is arranged on the inner side of the buffering assembly, the outer side of the battery main body is connected with the inner side of the lime layer, a rubber sealing plate is arranged at the upper end of the device shell, an anode metal sheet is arranged at the upper end of the rubber sealing plate, a positioning groove is formed in the upper end of the rubber sealing plate, an exhaust assembly is reserved on the inner side of the positioning groove, and a cathode metal sheet is fixedly mounted at the bottom end of the device shell.

2. The explosion-proof structure of a cylindrical lithium ion battery of claim 1, wherein the inside of the buffer assembly comprises a positioning ring, the positioning ring is disposed at the outside of the battery main body, the battery main body is connected with the positioning ring in a clamping manner, and a fixing cylinder is fixedly mounted at the outside of the positioning ring.

3. The cylindrical lithium ion battery explosion-proof structure of claim 2, wherein the inside of the buffer assembly comprises a fixing rod, the fixing rod is fixedly installed at the inner side of the equipment housing, and the fixing rod is slidably connected with the fixing cylinder.

4. The explosion-proof structure of a cylindrical lithium ion battery of claim 3, wherein the inside of the buffer assembly comprises a first spring, the first spring is disposed outside the fixing rod, and one end of the first spring is connected to the outside of the positioning ring.

5. The cylindrical lithium ion battery explosion-proof structure of claim 1, wherein the inside of the exhaust assembly comprises an exhaust groove, the exhaust groove is arranged on the inner side of the rubber sealing plate, a rubber plug is arranged on the inner side of the exhaust groove, and the rubber plug is slidably connected with the exhaust groove.

6. The cylindrical lithium ion battery explosion-proof structure of claim 5, wherein the inside of the exhaust assembly comprises a baffle plate, the baffle plate is fixedly installed on the inner side of the exhaust groove, the upper end of the rubber plug is fixedly installed with a push rod, and the push rod is slidably connected with the baffle plate.

7. The explosion-proof structure of cylindrical lithium ion battery of claim 6, wherein the inside of the exhaust assembly comprises a second spring, the second spring is disposed inside the exhaust groove, the bottom end of the second spring is connected with the upper end of the rubber plug, the inside of the rubber sealing plate is provided with a special-shaped groove, and the exhaust groove is communicated with the positioning groove through the special-shaped groove.

Images