CN209993653U

CN209993653U - Protection mechanism of combined lithium battery

Info

Publication number: CN209993653U
Application number: CN201921092275.7U
Authority: CN
Inventors: 叶洪; 吴挺辉
Original assignee: Fuzhou Wanji Power Equipment Co Ltd
Current assignee: Fuzhou Wanji Power Equipment Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-01-24
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a modular protection machanism of lithium cell, including base, limiting plate, first spacing seat and top cap, the spacing groove has been seted up in the first spacing seat, the through-hole has all been seted up at the spacing groove both ends, the moving contact has been installed through spring elasticity on the limiting plate surface, the one end that the moving contact is located the limiting plate outside is equipped with first terminal, the one end that the spacing groove deviates from the limiting plate is fixed with the plate electrode through screwed connection, the cable hole has been seted up at the base both ends, first fixed orifices has been seted up to base corner, top cap inside surface is equipped with the spacing seat of second, the top cap is located the spacing seat department of second and is equipped with the heating panel, one side surface mounting that the top cap deviates from the spacing seat of second has the fan, just the fan. The utility model discloses a set up first spacing seat and the spacing seat of second and carry on spacingly to the lithium cell, and the both ends of lithium cell all with can dismantle contact electric connection, and can dismantle contact convenient to detach and maintain.

Description

Protection mechanism of combined lithium battery

Technical Field

The utility model relates to a lithium cell technical field specifically is a protection mechanism of modular lithium cell.

Background

The lithium ion battery is a novel energy storage battery developed in recent years, and is mainly used on various devices due to the advantages of long cycle life, environmental friendliness, low price and the like.

The pole pieces of the battery pole lugs are connected in parallel by welding, the connection area of the welding structure is small, the contact resistance is large, the battery is easy to desolder for a long time in use, the battery is short-circuited, and the whole battery is not detachable, so that the difficulty is brought to later maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular lithium cell's protection mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a combined lithium battery protection mechanism comprises a base, a limit plate, a first limit seat and a top cover, the inner surface of the base is provided with a first limiting seat, a limiting groove is arranged in the first limiting seat, both ends of the limiting groove are provided with through holes, one end of the limiting groove is provided with a limiting plate, the surface of the limiting plate is elastically provided with a moving contact through a spring, a first binding post is arranged at one end of the moving contact positioned at the outer side of the limiting plate, a plate electrode is fixedly connected at one end of the limiting groove departing from the limiting plate through a screw, cable holes are arranged at two ends of the base, first fixing holes are arranged at corners of the base, the inner surface of the top cover is provided with a second limiting seat, the top cover is provided with a heat dissipation plate at the second limiting seat, and a fan is arranged on the surface of one side of the top cover, which deviates from the second limiting seat, and the fan is positioned right above the heat dissipation plate.

Preferably, the through hole of the limiting groove close to one side of the moving contact is matched with the diameter of the moving contact.

Preferably, the limiting plate and the electrode plate are made of uninsulated materials, a static contact is embedded on the surface of one side of the electrode plate, a second binding post is arranged on the side of the electrode plate away from the static contact, the static contact is electrically connected with the second binding post through a lead, and the through hole on the side, close to the electrode plate, of the limiting groove is matched with the static contact in size.

Preferably, the fan is provided with second fixing holes at four corners, the top cover is provided with third fixing holes at four corners, the positions of the first fixing hole, the second fixing hole and the third fixing hole are corresponding, and the base, the top cover and the fan are fixedly connected through the first fixing hole, the second fixing hole, the third fixing hole and the bolt.

Preferably, the position of the second limiting seat corresponds to the position of the first limiting seat.

Preferably, the limiting grooves are uniformly distributed in the first limiting seat.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up first spacing seat, the user carries on spacingly through first spacing seat to the lithium cell, and the both ends of first spacing seat are equipped with moving contact and static contact respectively, the moving contact passes through spring elastic mounting on the limiting plate, the spring is insulating spring, it is fixed to the lithium cell centre gripping through the elasticity of moving contact through the spring after the lithium cell installation, through setting up the top cap, the top cap is mutually supported through the spacing seat of second and first spacing seat and is carried on spacingly to the lithium cell, and the top cap is located the top of lithium cell and is equipped with the heating panel, through heating panel and lithium cell contact, and with the heat transfer that the lithium cell during operation gived off to the heating panel, later dispel the heat to the heating panel through the fan on.

Drawings

Fig. 1 is a schematic top view of a base according to the present invention;

fig. 2 is a schematic bottom view of the top cover of the present invention;

fig. 3 is a schematic top view of the present invention.

In the figure: 1. a moving contact; 2. a base; 3. a cable hole; 4. a first terminal post; 5. a limiting plate; 6. a first fixing hole; 7. an electrode plate; 8. a screw; 9. a limiting groove; 10. a first limiting seat; 11. a through hole; 12. a top cover; 13. a heat dissipation plate; 14. a second limiting seat; 15. a fan; 16. and a second fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 to fig. 3, the present invention provides an embodiment: the utility model provides a protection machanism of combined type lithium cell, the on-line screen storage device comprises a base 2, limiting plate 5, first spacing seat 10 and top cap 12, the inside surface of base 2 is equipped with first spacing seat 10, spacing groove 9 has been seted up in first spacing seat 10, spacing groove 9 evenly distributed in first spacing seat 10, through-hole 11 that spacing groove 9 is close to moving contact 1 one side and the diameter looks adaptation of moving contact 1, through-hole 11 has all been seted up at the both ends of spacing groove 9, the one end of spacing groove 9 is equipped with limiting plate 5, limiting plate 5 and the uninsulated material of plate electrode 7, one side surface mosaic of plate electrode 7 has the static contact, one side that plate electrode 7 deviates from the static contact is equipped with the second terminal, the static contact passes through wire electric connection with the second terminal, and the through-hole 11 and the static contact size.

The surface of the limiting plate 5 is elastically provided with a moving contact 1 through a spring, a user limits the position of the lithium battery through the first limiting seat 10 by arranging the first limiting seat 10, two ends of the first limiting seat 10 are respectively provided with the moving contact 1 and a fixed contact, the moving contact 1 is elastically arranged on the limiting plate 5 through the spring, the spring is an insulating spring, the lithium battery is clamped and fixed through the moving contact 1 through the elasticity of the spring after being arranged, one end of the moving contact 1, which is positioned at the outer side of the limiting plate 5, is provided with a first binding post 4, one end, which is deviated from the limiting plate 5, of the limiting groove 9 is fixedly connected with a plate electrode 7 through a screw 8, two ends of the base 2 are provided with cable holes 3, a first fixing hole 6 is formed at the corner of the base 2, the inner surface of the top cover 12 is provided with a second limiting seat 14, the position of the second limiting seat 14 corresponds, the surface of one side of the top cover 12 departing from the second limiting seat 14 is provided with a fan 15, an HY1525HA2 type axial flow fan 15 is used, the fan 15 HAs large wind pressure, low noise, small vibration, high temperature resistance, corrosion resistance and stable operation, four corners of the fan 15 are provided with second fixing holes 16, four corners of the top cover 12 are provided with third fixing holes, the positions of the first fixing hole 6, the second fixing hole 16 and the third fixing holes correspond, the base 2, the top cover 12 and the fan 15 are fixedly connected through the first fixing hole 6, the second fixing hole 16, the third fixing holes and bolts, the fan 15 is positioned right above the heat dissipation plate 13, the top cover 12 is arranged through the first limiting seat 10 and the second limiting seat 14 to limit the lithium battery, the heat dissipation plate 13 is arranged above the lithium battery 12, the heat dissipation plate 13 is contacted with the lithium battery when the lithium battery works and is transferred to the heat dissipation plate 13, the heat dissipation plate 13 is then dissipated by the fan 15 on the top cover 12, so as to dissipate heat from the lithium battery.

It should be noted that, the insulating spring for elastic support is a commercially available product, and as the prior art, the insulating spring is disclosed in the patent No. CN201220008129.3, and the working principle and the internal structure thereof are known to those skilled in the art, and the present invention only utilizes the functions of the above components and parts and does not improve the internal structure thereof, and therefore, the detailed description thereof is omitted here.

The working principle is as follows: the user is when using, the user carries on spacingly through first spacing seat 10 to the lithium cell, and the both ends of first spacing seat 10 are equipped with moving contact 1 and static contact respectively, moving contact 1 installs on limiting plate 5 through spring elasticity, the spring is insulating spring, elasticity through moving contact 1 through the spring is fixed to the lithium cell centre gripping after the lithium cell installation, top cap 12 is carried on spacingly through the spacing seat 14 of second and first spacing seat 10 mutually supporting to the lithium cell, and top cap 12 is located the top of lithium cell and is equipped with heating panel 13, through heating panel 13 and lithium cell contact, and with the heat transfer that the lithium cell during operation gived off to heating panel 13 on, later dispel the heat to heating panel 13 through fan 15 on top cap 12, thereby reach and carry out radiating effect to the lithium cell.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a protection machanism of modular lithium cell, includes base (2), limiting plate (5), first spacing seat (10) and top cap (12), its characterized in that: the inner surface of the base (2) is provided with a first limiting seat (10), a limiting groove (9) is formed in the first limiting seat (10), through holes (11) are formed in two ends of the limiting groove (9), a limiting plate (5) is arranged at one end of the limiting groove (9), a moving contact (1) is elastically installed on the surface of the limiting plate (5) through a spring, a first wiring terminal (4) is arranged at one end, located on the outer side of the limiting plate (5), of the moving contact (1), one end, away from the limiting plate (5), of the limiting groove (9) is fixedly connected with a plate electrode (7) through a screw (8), cable holes (3) are formed in two ends of the base (2), a first fixing hole (6) is formed in the corner of the base (2), a second limiting seat (14) is arranged on the inner surface of the top cover (12), and a heat dissipation plate (13) is arranged at the position, located on the second limiting seat, and a fan (15) is arranged on the surface of one side, deviating from the second limiting seat (14), of the top cover (12), and the fan (15) is positioned right above the heat dissipation plate (13).

2. The protection mechanism for a combined lithium battery according to claim 1, wherein: the through hole (11) of the limiting groove (9) close to one side of the moving contact (1) is matched with the diameter of the moving contact (1).

3. The protection mechanism for a combined lithium battery according to claim 1, wherein: the limiting plate (5) and the electrode plate (7) are made of non-insulating materials, a static contact is embedded on the surface of one side of the electrode plate (7), a second binding post is arranged on one side, away from the static contact, of the electrode plate (7), the static contact is electrically connected with the second binding post through a conducting wire, and a through hole (11) in one side, close to the electrode plate (7), of the limiting groove (9) is matched with the static contact in size.

4. The protection mechanism for a combined lithium battery according to claim 1, wherein: second fixed orifices (16) have been seted up to four corners of fan (15), the third fixed orifices has been seted up to four corners of top cap (12), and the position of first fixed orifices (6), second fixed orifices (16) and third fixed orifices is corresponding, base (2), top cap (12) and fan (15) are fixed through first fixed orifices (6), second fixed orifices (16), third fixed orifices and bolted connection.

5. The protection mechanism for a combined lithium battery according to claim 1, wherein: the position of the second limiting seat (14) corresponds to the position of the first limiting seat (10).

6. The protection mechanism for a combined lithium battery according to claim 1, wherein: the limiting grooves (9) are uniformly distributed in the first limiting seat (10).