CN220474760U

CN220474760U - Energy storage lithium battery

Info

Publication number: CN220474760U
Application number: CN202321847208.8U
Authority: CN
Inventors: 夏信德; 张景国; 刘昌�; 刘登俊; 周绪晶; 朱利勇; 袁立
Original assignee: Penghui Energy Changzhou Power Lithium Co ltd
Current assignee: Penghui Energy Changzhou Power Lithium Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-02-09
Anticipated expiration: 2033-07-13

Abstract

The utility model provides an energy storage lithium battery, which relates to the technical field of lithium batteries, and comprises a shell, an upper cover plate and a lithium battery pack, wherein the shell is provided with an upper opening, and the upper cover plate is arranged at the upper opening of the shell; the lithium battery pack is installed in the shell; lower fixing plates are arranged on two sides of the shell in the first direction, and upper fixing plates corresponding to the lower fixing plates are arranged on the upper cover plate; and a locking component is arranged on the upper fixing plate. The shell of the energy storage lithium battery provided by the utility model is provided with the lower fixing plate, the upper cover plate is provided with the upper fixing plate, and the first bending plate and the second bending plate which are arranged on the upper fixing plate can be connected, so that the tight connection between the upper fixing plate and the lower fixing plate is realized, the sealing of the energy storage lithium battery is ensured, and the waterproof effect of the energy storage lithium battery is ensured.

Description

Energy storage lithium battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to an energy storage lithium battery.

Background

Lithium batteries are a type of batteries using lithium metal or lithium alloy as positive and negative electrode materials and using nonaqueous electrolyte solutions, and because the chemical characteristics of lithium metal are very active, the processing, storage and use of lithium metal have very high requirements on environment, and along with the development of scientific technology, lithium batteries have become the mainstream, and the lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries, wherein the lithium ion batteries do not contain metallic lithium and can be charged, and the lithium metal batteries are generally batteries using manganese dioxide as a positive electrode material, metallic lithium or alloy metal thereof as a negative electrode material and using nonaqueous electrolyte solution, and single lithium batteries have low power and low voltage, so that the single lithium batteries are required to be packaged in groups and are used as power supplies of electric vehicles, electric tools, communication equipment and the like.

In order to avoid water vapor and the like to erode the lithium battery, the lithium battery is sealed by arranging a waterproof shell, and a sealing ring is usually arranged between a sealing cover and a shell of the existing waterproof shell to seal the lithium battery, but because the sealing cover and the shell are fixed by a screw, the screw is influenced by external vibration and environment in the long-time use process, looseness is easy to occur, so that a gap between the sealing cover and the shell is enlarged, and the sealing waterproof effect is influenced.

Disclosure of Invention

The utility model aims to provide an energy storage lithium battery so as to solve the technical problems that screws of the energy storage lithium battery are easy to loosen and the waterproof effect is poor.

The utility model provides an energy storage lithium battery, which comprises a shell, an upper cover plate and a lithium battery pack, wherein the shell is provided with an upper opening, and the upper cover plate is arranged at the upper opening of the shell;

the lithium battery pack is installed in the shell; lower fixing plates are arranged on two sides of the shell in the first direction, and upper fixing plates corresponding to the lower fixing plates are arranged on the upper cover plate;

a locking assembly is arranged on the upper fixing plate, the locking assembly comprises a first bending plate and a second bending plate, and the first bending plate and the second bending plate extend to the lower end of the lower fixing plate;

a movable groove is formed in the first bending plate, a reset spring and a fixed rod are arranged in the movable groove, one end of the fixed rod is in butt joint with the reset spring, and the reset spring is used for enabling the fixed rod to have a trend of moving towards the second bending plate;

a fixing hole with an opening facing the fixing rod is arranged on the second bending plate, and the fixing rod is assembled in the fixing hole;

the first direction is the length direction of the shell.

In an alternative embodiment, the length direction of the movable groove is a first direction;

a first guide column is arranged at one end of the movable groove, and a guide hole is arranged at the other end of the movable groove; one end of the return spring is sleeved on the first guide post;

a second guide post is arranged at one end of the fixed rod, which faces the return spring, and one end of the return spring is sleeved on the second guide post;

and a fixed clamping plate is arranged between the second guide post and the fixed rod, and is assembled in the movable groove.

In an alternative embodiment, the first bending plate comprises a first vertical plate and a first transverse plate, and the lower end of the first vertical plate is connected with one end of the first transverse plate;

the movable groove is arranged on the first transverse plate.

In an alternative embodiment, the second bending plate comprises a second vertical plate and a second transverse plate, and the lower end of the second vertical plate is connected with one end of the second transverse plate;

the fixing hole is arranged on the second transverse plate.

In an alternative embodiment, the lower fixing plate is provided with perforations corresponding to the first and second vertical plates.

In an alternative embodiment, the first vertical plate is hinged to the first transverse plate and the second vertical plate is hinged to the second transverse plate.

In an alternative embodiment, an upper groove is arranged on the peripheral side of the upper opening of the shell, and a lower protrusion matched with the upper groove is arranged on the upper cover plate.

In an alternative embodiment, the lower protrusion is a sealing ring.

In an alternative embodiment, a heat conducting plate is arranged in the shell, a plurality of heat radiating fins are arranged on the heat conducting plate, and the heat radiating fins extend out of the shell.

The shell of the energy storage lithium battery provided by the utility model is provided with the lower fixing plate, the upper cover plate is provided with the upper fixing plate, and the first bending plate and the second bending plate which are arranged on the upper fixing plate can be connected, so that the tight connection between the upper fixing plate and the lower fixing plate is realized, the sealing of the energy storage lithium battery is ensured, and the waterproof effect of the energy storage lithium battery is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an energy storage lithium battery according to an embodiment of the present utility model;

fig. 2 is a schematic view illustrating an internal structure of the energy storage lithium battery shown in fig. 1;

fig. 3 is a schematic structural view of a locking assembly of the energy storage lithium battery shown in fig. 1;

fig. 4 is a schematic view illustrating an internal structure of a locking assembly of the energy storage lithium battery shown in fig. 1.

Icon: 100-a housing; 200-an upper cover plate; 300-lower fixing plate; 400-upper fixing plate; 500-a first bending plate; 501-a first vertical plate; 502-a first transverse plate; 600-a second bending plate; 601-a second vertical plate; 602-a second transverse plate; 700-lower bulge; 800-upper groove; 900-lithium battery; 110-a heat-conducting plate; 120-radiating fins; 130-a movable trough; 140-a return spring; 150-a first guide post; 160-a second guide post; 170-fixing the clamping plate; 180-fixing rod.

Detailed Description

The terms "first," "second," "third," and the like are used merely for distinguishing between descriptions and not for indicating a sequence number, nor are they to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "left", "right", "upper", "lower", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use for the product of the application, are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application.

In the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings.

Examples

Referring to fig. 1 to 4, the present utility model provides an energy storage lithium battery, comprising a case 100, an upper cover plate 200 and a lithium battery pack 900, wherein the case 100 has an upper opening, and the upper cover plate 200 is disposed at the upper opening of the case 100;

the lithium battery pack 900 is installed in the case 100; lower fixing plates 300 are provided at both sides of the housing 100 in the first direction, and upper fixing plates 400 corresponding to the lower fixing plates 300 are provided on the upper cover plate 200;

a locking assembly is provided on the upper fixing plate 400, the locking assembly including a first bending plate 500 and a second bending plate 600, and the first bending plate 500 and the second bending plate 600 each extend to the lower end of the lower fixing plate 300;

a movable slot 130 is provided on the first bending plate 500, a return spring 140 and a fixed rod 180 are provided in the movable slot 130, one end of the fixed rod 180 is abutted against the return spring 140, and the return spring 140 is used for enabling the fixed rod 180 to have a tendency to move towards the second bending plate 600;

a fixing hole opened toward the fixing lever 180 is provided on the second bending plate 600, and the fixing lever 180 is fitted in the fixing hole;

the first direction is a length direction of the housing 100.

In some embodiments, the housing 100 of the energy storage lithium battery has an upper opening from which the lithium battery pack 900 fits into the housing 100; the upper cover 200 is fixed to the housing 100 such that the upper cover 200 is fixed to the housing 100.

The lower fixing plate 300 on the case 100 is disposed corresponding to the upper fixing plate 400 on the upper cover plate 200, the first and second bending plates 500 and 600 are disposed on the upper fixing plate 400, and the first and second bending plates 500 and 600 extend to the lower end of the lower fixing plate 300 and the first and second bending plates 500 and 600 are connected, thus fixing the upper fixing plate 400 and the lower fixing plate 300 together, and sealing the upper opening is achieved.

The first bending plate 500 is provided with a movable groove 130, the return spring 140 is disposed in the movable groove 130, the return spring 140 is in a compressed state, the return spring 140 makes the fixing rod 180 have a trend of moving towards the fixing hole, and the fixing rod 180 is inserted into the fixing hole under the action of the return spring 140 and is kept in the state of being in the fixing hole; thus, the upper fixing plate 400 and the lower fixing plate 300 are kept fixed, and the waterproof effect of the energy storage lithium battery is effectively maintained.

Referring to fig. 4, in an alternative embodiment, the length direction of the movable slot 130 is a first direction;

a first guide post 150 is disposed at one end of the movable slot 130, and a guide hole is disposed at the other end of the movable slot 130; one end of the return spring 140 is sleeved on the first guide post 150;

a second guide post 160 is arranged at one end of the fixing rod 180 facing the return spring 140, and one end of the return spring 140 is sleeved on the second guide post 160;

a fixing clip 170 is disposed between the second guide post 160 and the fixing rod 180, and the fixing clip 170 is assembled in the movable slot 130.

In some embodiments, the length direction of the movable slot 130 is a first direction, a first guide post 150 is disposed at one end of the movable slot 130, and a guide hole is disposed at the other end; the return spring 140 is located in the movable groove 130, one end of the return spring 140 is sleeved on the first guide post 150, and the other end is sleeved on the second guide post 160; and since the fixing clip 170 cannot pass through the guide hole, the return spring 140 cannot disengage the second guide post 160 from the movable slot 130.

The return spring 140 is sleeved on the second guide post 160 and is abutted against the fixed clamping plate 170, so that the return spring 140 and the fixed rod 180 cannot move relatively; the fixing lever 180 is moved toward the fixing hole so that the fixing lever 180 is held in the fixing hole, and thus the first and second bending plates 500 and 600 cannot be separated, ensuring the tight connection of the upper fixing plate 400 and the lower fixing plate 300.

Referring to fig. 2, in an alternative embodiment, the first bending plate 500 includes a first vertical plate 501 and a first lateral plate 502, and a lower end of the first vertical plate 501 is connected to one end of the first lateral plate 502;

the movable slot 130 is disposed on the first transverse plate 502.

In an alternative embodiment, the second bending plate 600 includes a second vertical plate 601 and a second lateral plate 602, and a lower end of the second vertical plate 601 is connected to one end of the second lateral plate 602;

the fixing hole is provided on the second transverse plate 602.

In an alternative embodiment, the lower fixing plate 300 is provided with perforations corresponding to the first and second vertical plates 501 and 601.

In an alternative embodiment, the first vertical plate 501 is hinged to the first transverse plate 502, and the second vertical plate 601 is hinged to the second transverse plate 602.

In some embodiments, one end of the first vertical panel 501 of the first bending flap 500 is hinged to one end of the first transverse panel 502 and one end of the second vertical panel 601 of the second bending flap 600 is hinged to one end of the second transverse panel 602; when the upper cover panel 200 is placed over the housing 100, the first transverse panel 502 of the first bending flap 500 remains upright with the first upright panel 501 and the second transverse panel 602 of the second bending flap 600 remains upright with the second upright panel 601 so that both the first bending flap 500 and the second bending flap 600 can be inserted into the corresponding perforations of the lower securing panel 300.

When the first transverse plate 502 and the second transverse plate 602 are perforated, they are bent, so that the fixing rods 180 of the first transverse plate 502 are inserted into the fixing holes of the second transverse plate 602.

In an alternative embodiment, an upper groove 800 is provided at a circumferential side of the upper opening of the housing 100, and a lower protrusion 700 is provided on the upper cover 200 to be matched with the upper groove 800.

In an alternative embodiment, the lower protrusion 700 is a sealing ring.

A lower protrusion 700 is provided on the lower end surface of the upper cover plate 200, and the lower protrusion 700 is typically a sealing ring; an upper groove 800 is provided on an upper end surface of the housing 100; the upper groove 800 is provided along the upper opening for one circle; after the upper cover 200 is covered on the case 100, the lower protrusion 700 of the upper cover 200 can be inserted into the upper groove 800 of the case 100, thus realizing the upper cover 200 sealing the upper opening of the case 100.

In an alternative embodiment, a heat conducting plate 110 is disposed in the housing 100, a plurality of heat dissipating fins 120 are disposed on the heat conducting plate 110, and the heat dissipating fins 120 extend outside the housing 100.

In order to timely dissipate heat generated by the lithium battery pack 900 in the housing 100, a heat conducting plate 110 is arranged in the housing 100, and a plurality of heat radiating fins 120 are arranged on the heat conducting plate 110; the heat sink fins 120 can extend outside the housing 100; the heat radiating fins 120 exchange heat with air outside the housing 100, thus radiating heat inside the housing 100.

The lower fixing plate 300 is arranged on the shell 100 of the energy storage lithium battery, the upper fixing plate 400 is arranged on the upper cover plate 200, and the first bending plate 500 and the second bending plate 600 arranged on the upper fixing plate 400 can be connected, so that the upper fixing plate 400 and the lower fixing plate 300 are tightly connected, the sealing of the energy storage lithium battery is ensured, and the waterproof effect of the energy storage lithium battery is ensured.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The energy storage lithium battery is characterized by comprising a shell (100), an upper cover plate (200) and a lithium battery pack (900), wherein the shell (100) is provided with an upper opening, and the upper cover plate (200) is arranged at the upper opening of the shell (100);

the lithium battery pack (900) is mounted within the housing (100); lower fixing plates (300) are arranged on two sides of the shell (100) in the first direction, and upper fixing plates (400) corresponding to the lower fixing plates (300) are arranged on the upper cover plate (200);

a locking assembly is provided on the upper fixing plate (400), the locking assembly including a first bending plate (500) and a second bending plate (600), and the first bending plate (500) and the second bending plate (600) each extend to the lower end of the lower fixing plate (300);

a movable groove (130) is formed in the first bending plate (500), a return spring (140) and a fixed rod (180) are arranged in the movable groove (130), one end of the fixed rod (180) is abutted against the return spring (140), and the return spring (140) is used for enabling the fixed rod (180) to have a trend of moving towards the second bending plate (600);

-providing a fixing hole with an opening towards the fixing rod (180) on the second bending plate (600), the fixing rod (180) being fitted in the fixing hole;

the first direction is a longitudinal direction of the housing (100).

2. The energy storage lithium battery according to claim 1, wherein a length direction of the movable groove (130) is a first direction;

a first guide column (150) is arranged at one end of the movable groove (130), and a guide hole is arranged at the other end of the movable groove (130); one end of the return spring (140) is sleeved on the first guide column (150);

a second guide post (160) is arranged at one end of the fixed rod (180) facing the return spring (140), and one end of the return spring (140) is sleeved on the second guide post (160);

a fixed clamping plate (170) is arranged between the second guide column (160) and the fixed rod (180), and the fixed clamping plate (170) is assembled in the movable groove (130).

3. The energy storage lithium battery according to claim 2, wherein the first bending plate (500) comprises a first vertical plate (501) and a first transverse plate (502), the lower end of the first vertical plate (501) being connected with one end of the first transverse plate (502);

the movable slot (130) is disposed on the first transverse plate (502).

4. The energy storage lithium battery according to claim 3, wherein the second bending plate (600) comprises a second vertical plate (601) and a second lateral plate (602), a lower end of the second vertical plate (601) being connected to one end of the second lateral plate (602);

the fixation hole is provided on the second transverse plate (602).

5. The energy storage lithium battery according to claim 4, wherein the lower fixing plate (300) is provided with perforations corresponding to the first vertical plate (501) and the second vertical plate (601).

6. The energy storage lithium battery according to claim 4, characterized in that the first vertical plate (501) is hinged to the first transverse plate (502) and the second vertical plate (601) is hinged to the second transverse plate (602).

7. The energy storage lithium battery according to claim 1, wherein an upper groove (800) is provided at a peripheral side of an upper opening of the case (100), and a lower protrusion (700) matching the upper groove (800) is provided on the upper cover plate (200).

8. The energy storage lithium battery according to claim 7, characterized in that the lower protrusion (700) is a sealing ring.

9. The energy storage lithium battery according to any one of claims 1-8, characterized in that a heat conducting plate (110) is arranged in the housing (100), that a plurality of heat radiating fins (120) are arranged on the heat conducting plate (110), and that the heat radiating fins (120) extend outside the housing (100).