CN213816263U

CN213816263U - Lithium iron phosphate core

Info

Publication number: CN213816263U
Application number: CN202022810638.5U
Authority: CN
Inventors: 江苏平; 周志才; 卢克荣
Original assignee: Guizhou Wanfeng Boyineng Technology Co ltd
Current assignee: Shenzhen Zhongrui Power Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-27
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a lithium iron phosphate core, which comprises a core body, wherein an inner protective shell is arranged outside the core body, the bottom of the inner protective shell is sprayed with a fixing agent, the lower end of the battery cell body is adhered to the upper end of the fixing agent, a cushion pad is detachably connected between the electric core body and the inner protective shell, the outer side of the inner protective shell is fixedly connected with the outer protective shell through a second reinforcing column, a cavity is arranged between the inner protective shell and the outer protective shell, a damping sponge is filled in the cavity, outer protecting crust outside skin weld has heat radiation fins, the utility model discloses a protecting crust, first enhancement post, second are strengthened post and outer protecting crust in being provided with, make it can form fine guard action to the lithium iron phosphate cell, fine having avoided the lithium iron phosphate cell to pierce through the problem of electric core by sharp-pointed object extrusion, have improved the life and the protectiveness of lithium iron phosphate cell.

Description

Lithium iron phosphate core

Technical Field

The utility model relates to a lithium iron phosphate battery technology field specifically is a lithium iron phosphate core.

Background

The lithium iron phosphate battery is a lithium ion battery using lithium iron phosphate as a positive electrode material, the positive electrode material of the lithium ion battery mainly comprises lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate and the like, and the lithium ion secondary charging battery comprises the following components: the battery cell + protective circuit board, the rechargeable battery removes the protective circuit board and is the battery cell, it is the electric power storage part in the rechargeable battery. The quality of the battery core directly determines the quality of the rechargeable battery.

However, the existing lithium iron phosphate core is poor in protection effect and has potential safety hazard, if the core is extruded by sharp objects, the inner core of the core is possibly damaged, and electrolyte solution leaks, so that the capacity of the core is reduced, a binding post is corroded, and the service life is shortened. To this end, we propose a lithium iron phosphate core.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium iron phosphate core to it is poor to put forward current lithium iron phosphate core protective effect among the above-mentioned background art of solution, has the potential safety hazard, if electric core receives sharp-pointed object extrusion, can cause the inner core of electric core damaged, and electrolyte solution reveals, thereby leads to electric core capacity to reduce, corrodes the terminal, shortens life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium iron phosphate core, includes the electricity core body, the electricity core body outside is provided with interior protecting crust, interior protecting crust bottom spraying has the fixative, the lower extreme adhesion of electricity core body is in the fixative upper end, can dismantle between electricity core body and the interior protecting crust and be connected with the blotter, the interior protecting crust outside strengthens the outer protecting crust of post fixedly connected with through the second, be provided with the cavity between interior protecting crust and the outer protecting crust, the inside packing of cavity has the shock attenuation sponge, the outer protecting crust outside skin weld has heat radiation fins.

Preferably, the lower end of the inner protective shell is fixedly connected with a first reinforcing column, and the lower end of the first reinforcing column is fixedly connected to the bottom of the outer protective shell.

Preferably, the surface of the inner protective shell is provided with a plurality of groups of through holes.

Preferably, the upper end of the outer protective shell is detachably connected with a fixed cover through a bolt.

Preferably, the fixing agent is an epoxy resin adhesive.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with interior protecting crust, first enhancement post, second and strengthen post and outer protecting crust, make it can form fine guard action to the lithium iron phosphate cell, fine having avoided the lithium iron phosphate cell to be pierced through the problem of electric core by sharp-pointed object extrusion, improved the life and the protectiveness of lithium iron phosphate cell.

2. The utility model discloses a be provided with shock attenuation sponge and cushion, make its use of mutually supporting, can play fine buffering cushioning effect to the lithium iron phosphate core.

3. The utility model discloses a be provided with heat radiation fins, heat radiation fins can make the lithium iron phosphate core can obtain fine heat dissipation, has avoided the danger of the high temperature explosion.

Drawings

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

fig. 2 is a schematic view of the inner protective shell structure of the present invention.

In the figure: 1. a cell body; 2. a first reinforcing column; 3. a fixative; 4. a cavity; 5. heat dissipation fins; 6. an outer protective shell; 7. a second reinforcing column; 8. a fixed cover; 9. a cushion pad; 10. an inner protective shell; 11. shock attenuation sponge.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a lithium iron phosphate core comprises a cell body 1, wherein an inner protective shell 10 is arranged on the outer side of the cell body 1, a fixing agent 3 is sprayed on the bottom of the inner protective shell 10, the lower end of the cell body 1 is adhered to the upper end of the fixing agent 3, a cushion pad 9 is detachably connected between the cell body 1 and the inner protective shell 10, an outer protective shell 6 is fixedly connected to the outer side of the inner protective shell 10 through a second reinforcing column 7, a cavity 4 is arranged between the inner protective shell 10 and the outer protective shell 6, a damping sponge 11 is filled in the cavity 4, and heat dissipation fins 5 are welded on the outer side surface of the outer protective shell 6;

the lower end of the inner protective shell 10 is fixedly connected with a first reinforcing column 2, the lower end of the first reinforcing column 2 is fixedly connected to the bottom of the outer protective shell 6, the connection strength of the inner protective shell 10 and the outer protective shell 6 is improved, a plurality of groups of through holes are formed in the surface of the inner protective shell 10, heat dissipation is facilitated, the upper end of the outer protective shell 6 is detachably connected with a fixing cover 8 through bolts, a good sealing effect is achieved, and the fixing agent 3 is an epoxy resin adhesive, so that the electric core body 1 can be stably fixed inside the inner protective shell 10.

Specifically, during the use, through being provided with interior protecting crust 10, first enhancement post 2, post 7 and outer protecting crust 6 are strengthened to the second, make it can form fine guard action to the lithium iron phosphate core, fine having avoided the lithium iron phosphate core to receive the problem that sharp object extrudeed impales electric core, the life and the protectiveness of lithium iron phosphate core have been improved, through being provided with shock attenuation sponge 11 and buffer pad 9, make its use of mutually supporting, can play fine buffering cushioning effect to the lithium iron phosphate core, through being provided with heat radiation fins 5, heat radiation fins 5 can make the lithium iron phosphate core can obtain fine heat dissipation, the danger of the too high explosion of temperature has been avoided.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium iron phosphate core, includes electric core body (1), its characterized in that: the battery cell comprises a battery cell body (1), and is characterized in that an inner protective shell (10) is arranged on the outer side of the battery cell body (1), a fixing agent (3) is sprayed on the bottom of the inner protective shell (10), the lower end of the battery cell body (1) is adhered to the upper end of the fixing agent (3), a cushion pad (9) is detachably connected between the battery cell body (1) and the inner protective shell (10), an outer protective shell (6) is fixedly connected to the outer side of the inner protective shell (10) through a second reinforcing column (7), a cavity (4) is arranged between the inner protective shell (10) and the outer protective shell (6), a damping sponge (11) is filled in the cavity (4), and heat dissipation fins (5) are welded on the surface of the outer side of the outer protective shell (6).

2. The lithium iron phosphate battery cell of claim 1, wherein: the lower end of the inner protective shell (10) is fixedly connected with a first reinforcing column (2), and the lower end of the first reinforcing column (2) is fixedly connected to the bottom of the outer protective shell (6).

3. The lithium iron phosphate battery cell of claim 1, wherein: the surface of the inner protective shell (10) is provided with a plurality of groups of through holes.

4. The lithium iron phosphate battery cell of claim 1, wherein: the upper end of the outer protective shell (6) is detachably connected with a fixed cover (8) through a bolt.

5. The lithium iron phosphate battery cell of claim 1, wherein: the fixing agent (3) is an epoxy resin adhesive.