CN219497979U - New energy lithium battery protection device with double locking and damping functions - Google Patents

Abstract

The utility model provides a new energy lithium battery protection device with double locking cards and shock absorption, wherein the bottom end and two sides of the inner wall of an upper shell are respectively provided with a heat conduction base plate, the outer side of the heat conduction base plate is provided with a diaphragm ester sheet, the outer part of the diaphragm ester sheet is provided with a hard shell, the top cover at the upper end of the upper shell is provided with a hard colloid plate and a metal cover, and the metal cover is fixedly connected with the heat conduction hard plate and forms closed locking together with a double locking switch; the double-locking switch has a double-locking function, is provided with a primary locking, a secondary locking and an external rotary switch device, and realizes a primary locking function, a secondary locking function and a spiral switch function; the lower shell and the damping transverse plate are connected in a jogged manner through a plurality of elastic incomplete jogged structures, and a damping spring with high elastic coefficient is arranged in the elastic incomplete jogged structure. The utility model realizes the safe and stable protection, real-time heat conduction and flexible opening and closing of the lithium battery.

Description

New energy lithium battery protection device with double locking and damping functions

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a new energy lithium battery protection device with double locking and damping functions.

Background

Lithium batteries are one type of battery having a high energy density, and are also one of the most common new energy batteries used today. In the use process, in order to protect the battery body, the protection component is added. In the existing lithium battery structural design, optimization measures on shock absorption protection and heat dissipation of a battery are relatively lacking, so that stability, heat dissipation and safety of a lithium battery structure are possibly poor, meanwhile, in order to realize fixation of a lithium battery to a lithium battery body in a device, a door opening and closing locking device or welding fixation is generally adopted, and meanwhile, the problem that when the lithium battery body is taken, when an emergency dangerous condition exists due to old lock cylinder or in a working state of the lithium battery, the safety and flexibility of opening and closing of the lithium battery device cannot be realized is solved.

Disclosure of Invention

The utility model aims to provide a new energy lithium battery protection device with double locking and damping functions.

The technical solution for realizing the purpose of the utility model is as follows: the utility model provides a new forms of energy lithium cell protection device with double locking and shock attenuation, includes casing and lower casing, elasticity incomplete formula gomphosis structure body, double locking switch and places at the inside lithium cell body of device, its characterized in that: the bottom end and the two sides of the inner wall of the upper shell are respectively provided with a heat conduction base plate, the outer side of the heat conduction base plate is provided with a diaphragm ester sheet, the outer part of the diaphragm ester sheet is provided with a hard shell, a hard rubber plate and a metal cover are arranged on the top cover at the upper end of the upper shell (1), and the metal cover is fixedly connected with the hard rubber plate and forms closed locking together with the double locking switch; the double locking switch comprises a primary locking, a secondary locking and an external rotary switch device, and is used for realizing a primary locking function, a secondary locking function and a spiral switch function; the lower shell and the shock absorption transverse plate form embedded connection through a plurality of elastic incomplete embedded structures, and shock absorption springs are arranged in the elastic incomplete embedded structures.

As a further scheme of the utility model: the primary lock of the lock switch and the metal cover lock hook of the upper shell form a first-stage locking and fixing mode, meanwhile, the primary lock is connected with the rotary switch device through the primary elastic spring and the primary inelastic colloid ester rope, the rotary switch device is rotated to drive the primary lock to move, and after the rotary switch device is loosened, the primary lock is reset through the primary elastic spring and the metal cover lock hook is opened and closed to complete the primary locking function.

As a further scheme of the utility model: the second-stage locking clamp of the locking clamp switch forms second-stage locking fixation with the metal cover locking hook and the trapezoid locking block of the hard rubber plate, and simultaneously the second-stage locking clamp moves left and right forwards and backwards through the left and right moving device and the front and back pulling device, and completes opening and closing of the second-stage locking function with the metal cover locking hook and the trapezoid locking block;

the left-right moving device comprises a left-right fixed sliding sheet, a left-right elastic spring and a left-right locking clamp position, wherein two ends of the left-right elastic spring are respectively fixed on the secondary locking card and the left-right fixed sliding sheet, the left-right elastic spring is in a natural state when the secondary locking card is not pushed, and the left-right fixed sliding sheet is embedded into the left-right locking clamp position of the secondary locking card to cooperatively realize left-right sliding of the secondary locking card;

the front-back pulling device comprises a front-back fixed sliding blade, a front-back elastic spring, a semicircular device, a two-stage inelastic colloid ester rope, a front-back sliding blade restoring spring and a front-back locking clamp position, wherein the front-back fixed sliding blade is embedded in the front-back locking clamp position, the front-back fixed sliding blade moves left and right in the front-back locking clamp position, meanwhile, two ends of the front-back sliding blade restoring spring are respectively connected with the front-back fixed sliding blade and the front-back locking clamp position in a jogged mode, the front-back sliding blade restoring spring keeps a natural state in a restoring state, the front-back fixed sliding blade is provided with the semicircular device, the two-stage inelastic colloid ester rope penetrates through the front-back fixed sliding blade in a non-connecting mode and is respectively fixed in the two ends of the two-stage locking clamp and the rotary switch device, and the front-back elastic spring is respectively fixed on the two-stage locking clamp and the front-back fixed sliding blade;

in the descending and closing process of the top cover, the metal cover lock hook pushes the secondary lock clamp to the left through the inclined surface contact acting force, so that the secondary lock clamp is matched with the trapezoidal locking block at the right end of the hard colloid plate to realize the second locking function, and the front and rear fixed sliding sheets are synchronously pushed to move to the left in the front and rear locking clamp positions, so that the front and rear fixed sliding sheets and the secondary lock clamp keep relative static at left and right positions; after the secondary locking clamp is overlapped with the trapezoidal locking block to form locking, the secondary non-elastic colloid ester rope is pulled by rotating the external rotary switch device, so that the secondary locking clamp moves backwards to form dislocation with the trapezoidal locking block, the secondary locking clamp temporarily releases the secondary locking effect on the trapezoidal locking block, simultaneously pulls the primary locking clamp to temporarily release the primary locking effect on the metal cover locking hook, the rotary switch device is released after the upper cover is opened, the front and rear positions of the secondary locking clamp are restored by the front and rear elastic springs, and the left and right positions of the secondary locking clamp are restored by the left and right elastic springs; in the restoration process, the front and rear fixed sliding sheets restore rightwards under the synchronous action of the front and rear sliding sheet restoring springs, and the relative static left and right positions of the front and rear fixed sliding sheets and the secondary locking card are continuously realized.

As a further scheme of the utility model: the external rotary type switch device of the locking switch is connected with the primary locking device and the secondary locking device through two inelastic colloid ester ropes, and the inelastic colloid ester ropes and the rotary type switch device are fixed in an embedded mode through fixing columns arranged in the external rotary type switch device.

As a further scheme of the utility model: rectangular synapses and concave fixed blocks are arranged on the lower shell and the shock absorption transverse plate, the rectangular synapses of the lower shell/the shock absorption transverse plate are connected with the concave fixed blocks of the shock absorption transverse plate/the lower shell in a jogged mode, and meanwhile shock absorption springs are arranged between the rectangular synapses and the concave fixed blocks to jointly form an elastic incomplete jogged structure.

As a further scheme of the utility model: the lower shell is of a concave structure, and meanwhile the concave structure of the lower shell is matched with the rectangular structure of the upper shell.

As a further scheme of the utility model: the upper shell adopts an upper lever and lower lever rotary top cover structure to realize the opening and closing of the integral top formed by the hard colloid plate and the metal cover.

As a further scheme of the utility model: the diaphragm ester piece adopts the ester material that the gas permeability is good, and the heat conduction backing plate of lithium cell inner wall is equipped with the heat conduction hole, simultaneously outside stereoplasm casing is equipped with the louvre equally.

Compared with the prior art, the utility model has the advantages that: the protection shell, the damping heat-conducting material and the elastic damping embedded block structure between the upper shell and the lower shell are added in the lithium battery structure device, and the double locking switch device is designed to realize the safety and stability protection, real-time heat conduction and flexible opening and closing functions of the lithium battery.

Drawings

Fig. 1 is a schematic diagram of a new energy lithium battery protection device with dual locking and shock absorption.

Fig. 2 is a front view of a locking structure in a new energy lithium battery protection device with double locking and shock absorption.

Fig. 3 is a top view of a locking structure in a new energy lithium battery protection device with double locking and shock absorption.

Fig. 4 shows a rotary switch device in a locking structure of a new energy lithium battery protection device with double locking and shock absorption.

Reference numerals: the lithium battery pack comprises an upper shell 1, a hard shell 2, a diaphragm ester sheet 3, a heat conducting base plate 4, a shock absorbing transverse plate 5, a lower shell 6, a metal cover 7, a double lock switch 8, a trapezoidal locking block 80, a secondary lock 81, a left-right fixed sliding sheet 811, a left-right elastic spring 812, a left-right fixed locking position 813, a primary lock 82, a primary elastic spring 821, a primary inelastic rubber ester rope 822, a metal cover locking hook 83, a front-back pulling device 84, a front-back fixed sliding sheet 841, a front-back elastic spring 842, a semicircular device 843, a secondary inelastic rubber ester rope 844, a front-back sliding sheet restoring spring 845, a front-back fixed locking position 846, a rotary switch device 85, a fixed column 851, a hard shell radiating hole 9, a lithium battery body 10, a heat conducting base plate heat conducting hole 11, an unconventional concave fixed block 12, a shock absorbing spring 13, a rectangular synapse 14, a hard rubber plate 15 and an elastic incompletely-embedded structure 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

Referring to fig. 1-4, a new energy lithium battery protection device with double locking and damping functions according to an embodiment of the present utility model includes an upper housing 1, a lower housing 6, an elastic non-complete embedded structure 16, a double locking switch 8, and a lithium battery body 10 disposed inside the device.

Referring to fig. 1, the bottom end and two sides of the inner wall of the upper casing 1 are respectively provided with a heat conducting pad 4, the heat conducting pad 4 has heat conductivity and a certain strength fixing function, the heat conducting pad 4 is provided with heat conducting holes 11, the outer sides of the heat conducting pads 4 are connected with diaphragm ester sheets 3 in an attaching way, the diaphragm ester sheets 3 can be made of a fireproof phenolic resin material with good air permeability, and the effects of transverse shock absorption, heat transfer and heat dissipation can be achieved; the upper cover of the upper shell 1 is of a double-layer structure, and comprises an outer metal cover 7 and a hard colloid plate 15 which are fixedly connected through screws, wherein the whole metal upper cover adopts an up-down rotary opening mode, and a top lock hook 83 of the metal cover 7 is locked with a locking switch 8.

The lower shell 6 and the upper shell 1 are connected and fixed through a concave base, the lower shell 6 and the shock absorption transverse plate 5 are further connected in a jogged mode through a plurality of elastic incomplete jogged structures 16, the elastic incomplete jogged structures 16 comprise rectangular synapses 14 respectively from the lower shell 6/the shock absorption transverse plate 5 and unconventional concave fixed blocks 12 of the shock absorption transverse plate 5/the lower shell 6, meanwhile, damping springs 13 with high elastic coefficients are arranged between the rectangular synapses 14 and the unconventional concave fixed blocks 12, one ends of the damping springs 13 are fixedly embedded in the unconventional concave fixed blocks 12, and the other ends of the damping springs are suspended; meanwhile, the concave design of the lower shell 6 is matched with the rectangular structure of the upper shell 1, so that the transverse and longitudinal connection of the upper shell and the lower shell are more stable, the stability and the damping effect of the device can be further improved through the existence of a plurality of elastic incomplete embedded structures 16, and damage caused by vibration in the transportation and use processes of the lithium battery can be well avoided.

Referring to fig. 1, 2, 3 and 4, in order to realize more stable fixing inside the lithium battery and more flexible opening and closing of the device to take out and install the lithium battery body 2, a dual locking switch 8 is designed, and a metal cover locking hook 83 at the head of a metal cover 7 in an upper shell 1 and a hard rubber plate 15 with a trapezoid locking block 80 are designed to respectively form a braking switch with a dual locking function with a primary locking card 82 and a secondary locking card 81 contained in the dual locking switch 8, wherein the primary locking card 82 is connected with a primary elastic spring 821 and a primary inelastic rubber rope 822, and the primary inelastic rubber rope 822 is connected with an external rotary switching device 85 to realize left and right braking of the primary locking card 82. The secondary lock 81 can move left and right by combining the left and right elastic spring 812 and the left and right fixing slide 811, and the left and right fixing slide 811 is embedded in the secondary left and right locking position 813. The secondary locking device 81 is further combined with a front-back pulling device 84 to realize front-back movement of the secondary locking device 81, the front-back pulling device 84 comprises a front-back elastic spring 842, a front-back fixed sliding sheet 841 and a secondary inelastic colloid ester rope 844, a semicircular device 843 is arranged at the joint of the secondary inelastic colloid ester rope 844 and the front-back fixed sliding sheet 841 to realize steering, and the front-back fixed sliding sheet 841 can be synchronously pushed left and right by the metal cover locking hook 83 along with the secondary locking device 81. The primary lock card 82 realizes a left-right sliding function through the action of the primary elastic spring 821 and the primary inelastic colloid ester rope 822, the corresponding primary lock card 82 realizes the closing and opening functions of locking and braking, the secondary lock card 81 is relatively complex in function, the elastic springs and the fixed sliding sheets at a plurality of positions are respectively set to realize the front-back arrangement and left-right sliding of the secondary lock card 81, the secondary lock card 81 is pushed to the left side by the metal cover lock hook 83 through the inclined surface contact action force to be overlapped with the trapezoidal locking block 80 of the hard colloid plate 15 to form a closing function of the secondary lock card, the primary inelastic colloid ester rope 821 is pulled through the rotary switch device 85, and simultaneously the secondary inelastic colloid ester rope 844 is synchronously pulled to further act on the secondary lock card 82, so that the front-back push-pull braking is realized, the trapezoidal locking block 80 and the secondary lock card 81 are not fixedly limited any more, the opening function of the secondary lock card 81 is realized, and the front-back position of the secondary lock card 81 is realized through the front-back elastic 842, and the left-right position of the secondary lock card 81 is restored through the front-back elastic 842, and the left-back position of the secondary lock card 81 is restored through the left-back elastic spring 812; the front and rear fixed sliding sheets 841 can realize the position restoration in the front and rear lock clamping positions 846 through the front and rear sliding sheet restoring springs 845 after the upper cover is opened; the inelastic colloid ester ropes which participate in the braking of the primary locking clamp 82 and the secondary locking clamp 81 are jointly extended to the external fixed rotary switch device 85, so that the opening and closing of the functions of the primary locking clamp 82 and the secondary locking clamp 81 can be realized through single external manual rotation, the complex and tedious steps of a conventionally adopted door opening and closing locking device or welding fixation and the like are eliminated, meanwhile, the problem that the lithium battery body 10 cannot be taken out due to the fact that a lock cylinder is old or the device cannot be timely opened when the lithium battery body 10 is in an emergency dangerous condition in the working state when a battery is taken out is avoided, the safer and more stable and flexible braking opening and closing of the lithium battery device are realized, meanwhile, the safety inspection and maintenance of the double locking clamp switch 8 are further considered, the double locking clamp switch 8 can be designed to be fixed with the upper shell 1 through rivets or screws and the like, and therefore more flexible maintenance or replacement of the double locking clamp switch 8 is realized.

The working principle of the utility model is as follows: according to the embodiment shown in fig. 1-4, when in use, the lithium battery body 10 is put into the device, the locking of the device to the internal lithium battery body 10 is realized through the structure of the double locking switch 8, in the double locking switch 8, the locking function is more stable and firm by matching the primary locking concept and the secondary locking concept with the metal cover 7 of the upper shell 1 and the trapezoidal locking block 80 at the front end of the hard rubber plate 15, the locking effect is better, and the double locking switch 8 is provided with a plurality of inelastic rubber ester ropes, fixed sliding sheets and elastic springs, and the safer and more flexible unlocking and locking functions are realized by matching the primary locking switch 82 and the secondary locking switch 81 with the rotary switch device 85 outside the double locking switch 8; the concave design of the lower shell 6 is further matched with the rectangular structure of the upper shell 1, meanwhile, the lower shell 6 and the shock absorption transverse plate 5 are mutually embedded and connected through a plurality of elastic incomplete embedded structures 16, wherein the elastic incomplete embedded structures 16 respectively comprise rectangular synapses 14 from the lower shell 6/the shock absorption transverse plate 5 and unconventional concave fixed blocks 12 of the shock absorption transverse plate 5/the lower shell 6, and meanwhile, the rectangular synapses 14 are provided with shock absorption springs 13 with high elastic coefficients in the middle of the unconventional concave fixed blocks 12, one ends of the shock absorption springs 13 are fixedly embedded in the unconventional concave fixed blocks 12, and the other ends of the shock absorption springs 13 are suspended. The above-mentioned structural design makes the horizontal and vertical connection of upper and lower casing more stable jointly, further optimizes the shock attenuation effect of device, has realized fine shock attenuation shockproof purpose, avoided causing the damage to the lithium cell because of excessive vibrations in mill's use or transportation, the dual card locking switch 8 of design has simultaneously effectually avoided in traditional lithium cell to exist when taking the lithium cell body because of lock core is old or the lithium cell operational condition is in the switching problem of comparatively stable nimble to the lithium cell device when being in emergent dangerous condition, can be further simultaneously based on the security inspection and the maintenance problem of dual card locking switch 8, is right dual card locking switch 8 designs and realizes fixedly with last casing 1 with rivet or screw etc. to can realize more nimble maintenance or change this dual card locking switch 8.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (6)

1. New forms of energy lithium cell protection device with double locking and shock attenuation, its characterized in that includes casing (1) and lower casing (6), elasticity incomplete gomphosis structure body (16), double locking switch (8) and places at the inside lithium cell body (10) of device, its characterized in that: the heat conduction device is characterized in that heat conduction base plates (4) are arranged at the bottom end and two sides of the inner wall of the upper shell (1), a diaphragm ester sheet (3) is arranged at the outer side of the heat conduction base plates (4), a hard shell (2) is arranged outside the diaphragm ester sheet (3), a hard rubber plate (15) and a metal cover (7) are arranged on the top cover at the upper end of the upper shell (1), and the metal cover (7) is fixedly connected with the hard rubber plate (15) and forms closed locking together with a double-locking switch (8); the double-locking switch (8) comprises a primary locking card (82), a secondary locking card (81) and an external rotary switch device (85) and is used for realizing a primary locking function, a secondary locking function and a spiral switch function; the lower shell (6) and the shock absorption transverse plate (5) form embedded connection through a plurality of elastic incomplete embedded structures (16), and a shock absorption spring (13) is arranged in the elastic incomplete embedded structures (16);

the primary locking clamp (82) of the locking clamp switch (8) and the metal cover locking hook (83) of the upper shell form a first-stage locking fixation, meanwhile, the primary locking clamp (82) is connected with the rotary switch device (85) through the primary elastic spring (821) and the primary non-elastic colloid ester rope (822), the rotary switch device (85) drives the primary locking clamp to move, and the primary locking clamp (82) is reset through the primary elastic spring (821) after the rotary switch device (85) is released, so that the primary locking function is completed with the metal cover locking hook (83);

the second-stage locking clamp (81) of the locking clamp switch (8) forms second-stage locking fixation with a metal cover locking hook (83) and a trapezoid locking block (80) of the hard rubber plate (15), and meanwhile, the second-stage locking clamp (81) moves left and right and forwards and backwards through a left and right moving device and a front and back pulling device (84), and the second-stage locking function is completed with the metal cover locking hook (83) and the trapezoid locking block (80);

the left-right moving device comprises a left-right fixed sliding sheet (811), a left-right elastic spring (812) and a left-right locking position (813), wherein two ends of the left-right elastic spring (812) are respectively fixed on the secondary locking card (81) and the left-right fixed sliding sheet (811), the left-right elastic spring (812) is in a natural state when the secondary locking card (81) is not pushed, and the left-right fixed sliding sheet (811) is embedded into the left-right locking position (813) of the secondary locking card (81) to cooperatively realize left-right sliding of the secondary locking card (81);

the front-back pulling device (84) comprises a front-back fixed sliding blade (841), a front-back elastic spring (842), a semicircular device (843), a two-stage inelastic colloid ester rope (844), a front-back sliding blade restoring spring (845) and a front-back locking clamping position (846), wherein the front-back fixed sliding blade (841) is embedded in the front-back locking clamping position (846), the front-back fixed sliding blade (841) moves left and right in the front-back locking clamping position (846), meanwhile, two ends of the front-back sliding blade restoring spring (845) are respectively connected with the front-back fixed sliding blade (841) and the front-back locking clamping position (846) in a jogged mode, the front-back sliding blade restoring spring (845) keeps a natural state in a restoring state, the two-stage inelastic colloid ester rope (843) penetrates through the front-back fixed sliding blade (841) and two ends of the front-back fixed sliding blade are respectively fixed in the two-stage locking clamping device (841) and the rotary switching device (85), and the front-back sliding blade (8485) is in a natural state when the front-back elastic sliding blade (841) is fixed at two-stage elastic sliding blade (842) and the front-back elastic sliding blade (846) is in a natural state;

in the descending and closing process of the top cover, the metal cover locking hook (83) pushes the secondary locking clamp (81) leftwards through inclined surface contact acting force, so that the secondary locking clamp (81) is matched with the trapezoidal locking block (80) at the right end of the hard rubber plate (15) to realize a second-stage locking function, and the front and rear fixed sliding sheets (841) are synchronously pushed to move leftwards in the front and rear locking clamp positions (846), so that the front and rear fixed sliding sheets (841) and the secondary locking clamp (81) keep relative static at left and right positions; after the secondary locking clamp (81) is overlapped with the trapezoidal locking block (80) to form locking, the secondary inelastic colloid ester rope (844) is pulled by rotating the external rotary switch device (85), so that the secondary locking clamp (81) moves backwards to form dislocation with the trapezoidal locking block (80), the secondary locking clamp (81) temporarily releases the secondary locking effect on the trapezoidal locking block (80), meanwhile, the primary locking clamp (82) is pulled again to temporarily release the primary locking effect on the metal cover locking hook (83), the rotary switch device (85) is released after the upper cover is opened, the front-back position restoration of the secondary locking clamp (81) is realized by the front-back elastic spring (842), and the left-right position restoration of the secondary locking clamp (81) is realized by the left-right elastic spring (812); in the restoration process, the front and rear fixed sliding sheets (841) are restored rightwards under the synchronous action of the front and rear sliding sheet restoring springs (845), so that the left and right positions of the front and rear fixed sliding sheets (841) and the secondary locking card (81) are kept relatively static.

2. The new energy lithium battery protection device with double locking and shock absorption according to claim 1, wherein the new energy lithium battery protection device is characterized in that: the external rotary type switch device (85) of the locking switch (8) is connected with the primary locking device (82) and the secondary locking device (81) through two inelastic colloid ester ropes, and the inelastic colloid ester ropes and the rotary type switch device (85) are fixed in an embedded mode through fixing columns (851) arranged in the external rotary type switch device (85).

3. The new energy lithium battery protection device with double locking and shock absorption according to claim 1, wherein the new energy lithium battery protection device is characterized in that: rectangular synapses (14) and concave fixed blocks (12) are arranged on the lower shell (6) and the shock absorption transverse plate (5), the rectangular synapses (14) of the lower shell (6)/the shock absorption transverse plate (5) are connected with the concave fixed blocks (12) of the shock absorption transverse plate (5)/the lower shell (6) in a jogged mode, and meanwhile shock absorption springs (13) are arranged between the rectangular synapses (14) and the concave fixed blocks (12) to jointly form an elastic incomplete jogged structure (16).

4. The new energy lithium battery protection device with double locking and shock absorption according to claim 1, wherein the new energy lithium battery protection device is characterized in that: the lower shell (6) is of a concave structure, and meanwhile the concave structure of the lower shell (6) is matched with the rectangular structure of the upper shell (1).

5. The new energy lithium battery protection device with double locking and shock absorption according to claim 1, wherein the new energy lithium battery protection device is characterized in that: the upper shell (1) adopts an upper lever and lower lever rotary top cover structure to realize the opening and closing of the integral top formed by the hard colloid plate (15) and the metal cover (7).

6. The new energy lithium battery protection device with double locking and shock absorption according to claim 1, wherein the new energy lithium battery protection device is characterized in that: the diaphragm ester sheet (3) is made of an ester material, the heat conduction pad (4) on the inner wall of the lithium battery is provided with heat conduction holes (11), and meanwhile, the external hard shell (2) is also provided with heat dissipation holes (9).