CN210349897U

CN210349897U - Energy storage battery protection circuit board

Info

Publication number: CN210349897U
Application number: CN201920710034.8U
Authority: CN
Inventors: 晏泰山
Original assignee: Shenzhen Mintai Electronic Technology Co Ltd
Current assignee: Shenzhen Mintai Electronic Technology Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-04-17
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses an energy storage battery protection circuit board, including battery protection shield main part, contact assembly and battery case, the battery protection shield main part is located the battery case, contact assembly is equipped with two, and the symmetric distribution fixes on battery protection shield main part surface to with the contact of battery case inner wall, the utility model discloses a contact assembly and extruded article cooperation are used, realize closely laminating the installation with battery protection shield main part and battery case, and effectual energy storage battery equipment of avoiding appears vibrations when using, when rocking, battery protection shield main part breaks away from the short circuit with battery assembly, loses the protection of overcharging, putting, overflowing and the short circuit to the battery, influences energy storage battery's normal use.

Description

Energy storage battery protection circuit board

Technical Field

The utility model relates to a battery protection circuit board technical field specifically is energy storage battery protection circuit board.

Background

The battery protection circuit board mainly aims at an integrated circuit board which can protect rechargeable (generally referred to as a lithium battery), the lithium battery (rechargeable type) needs to be protected and is determined by the characteristics of the lithium battery, and the lithium battery component of the lithium battery always follows a protection board with a sampling resistor and a current protector because the lithium battery cannot be overcharged, overdischarged, overcurrent, short-circuited and charged and discharged at ultrahigh temperature due to the determination of the material of the lithium battery.

In a conventional energy storage battery, for example, a lithium secondary battery, includes an electrode assembly located in a battery case together with an electrolyte and a sealing cover for the battery case, the protection circuit board can prevent overcharge or overdischarge of the secondary battery, but during installation, since the sizes of the electrode assembly and the battery protection battery board are generally fixed, but the external sizes of different types of battery cases have errors, a gap may be formed between the protection circuit board and the inner wall of the battery case, so that the battery may be connected with the electrode assembly insensitively with external vibration during use, which may affect the normal use of the energy storage battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy storage battery protection circuit board to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the energy storage battery protection circuit board comprises a battery protection board main body, two contact assemblies and a battery shell, wherein the battery protection board main body is located in the battery shell, and the two contact assemblies are symmetrically distributed and fixed on the surface of the battery protection board main body and are in contact with the inner wall of the battery shell.

Preferably, the contact assembly comprises extruded article, sliding sleeve, slide bar and spring, two regulation mouths have been seted up to the symmetry in the battery protection shield main part, the extruded article is equipped with two, and the symmetric distribution fixes in the battery protection shield main part, sliding sleeve one end sliding sleeve is in the slide bar one end outside, and sliding sleeve and slide bar outer end are fixed with two extruded articles respectively, the spring housing is in the sliding sleeve outside, and the spring both ends are fixed with two extruded articles respectively.

Preferably, the extruded article comprises connecting plate, contact plate, L shape limiting plate and spacing tooth piece, L shape limiting plate is fixed in battery protection shield main part bottom, the contact plate outside and L shape limiting plate inner wall sliding connection, and contact plate one end is fixed with the connecting plate, the connecting plate outside and the inner wall sliding connection of regulation mouth, and connecting plate one side is fixed with sliding sleeve or slide bar one end, the inboard equidistance of regulation mouth is equipped with a plurality of tooth mouths, spacing tooth piece is equipped with a plurality ofly, and a plurality of spacing tooth piece equidistance are fixed and are close to tooth mouth one side at the connecting plate.

Preferably, the outer side of the connecting plate is carved with anti-slip lines.

Preferably, a rubber sleeve is fixed on the outer side of the contact plate.

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

1. the utility model discloses a contact assembly and extruded article cooperation are used, realize closely laminating the installation with battery protection shield main part and battery case, and effectual energy storage battery equipment of avoiding appears vibrations when using, when rocking, and battery protection shield main part breaks away from the short circuit with battery pack, loses the protection to the battery overcharge, cross discharge, overflow and the short circuit, influences energy storage battery's normal use.

2. The utility model discloses a contact plate outside is fixed with the rubber sleeve, and increase frictional force prevents to take place to remove.

Drawings

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

FIG. 2 is a schematic view of the cross-sectional side view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure: 1-a battery protection plate body; 2-a contact assembly; 3-a battery case; 4-extrusion; 5, sliding sleeve; 6-a slide bar; 7-a spring; 8-an adjusting port; 9-a connecting plate; 10-a contact plate; 11-L-shaped limiting plates; 12-a limit tooth block; 13-tooth mouth.

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.

Referring to fig. 1-3, the energy storage battery protection circuit board shown in the figures includes a battery protection board main body 1, two contact assemblies 2 and a battery case 3, wherein the battery protection board main body 1 is located in the battery case 3, the two contact assemblies 2 are symmetrically distributed and fixed on the surface of the battery protection board main body 1 and are in contact with the inner wall of the battery case 3, and the battery protection board main body 1 and the battery case 3 are tightly attached and mounted by using the contact assemblies 2.

Contact module 2 comprises extruded article 4, sliding sleeve 5, slide bar 6 and spring 7, two regulation mouth 8 have been seted up to the symmetry on the battery protection shield main part 1, extruded article 4 is equipped with two, and the symmetric distribution fixes on battery protection shield

main part

1, 5 one end sliding sleeve of sliding sleeve is in the 6 one end outsides of slide bar, and sliding

sleeve

5 and 6 outer ends of slide bar are fixed with two extruded article 4 respectively, spring 7 covers in the 5 outsides of sliding sleeve, and the spring 7 both ends are fixed with two extruded article 4 respectively, provide an elasticity through spring 7, realize extruded article 4 and battery housing 3's the extrusion of closely laminating.

Extruded article 4 comprises connecting plate 9, contact plate 10, L shape limiting plate 11 and spacing toothblock 12, L shape limiting plate 11 is fixed in 1 bottom of battery protection board main part, contact plate 10 outside and 11 inner wall sliding connection of L shape limiting plate, and contact plate 10 one end is fixed with connecting

plate

9, 9 outside and 8 inner wall sliding connection of regulation mouth of connecting plate, and 9 one side of connecting plate are fixed with sliding

sleeve

5 or 6 one end of slide bar, 8 inboard equidistance of regulation mouth are equipped with a plurality of toothholes 13, spacing toothblock 12 is equipped with a plurality ofly, and a plurality of spacing toothblocks 12 equidistance are fixed and are close to toothhole 13 one side at connecting plate 9, realize the extrusion laminating with battery housing 3 through extruded article 4.

The specific implementation mode is as follows: when installing battery protection shield main part 1, inwards hold between fingers two connecting plates 9 earlier, make the spacing tooth piece 12 and the tooth mouth 13 of connecting plate 9 one side break away from not joint, put into battery case 3 with battery protection shield main part 1 this moment again, the connecting plate 9 is moved to the outside simultaneously, make the contact plate 10 outside respectively with the contact of four side inner walls of battery case 3, loose one's hand this moment, produce elasticity through spring 7 elastic deformation, promote two connecting plates 9 and outwards move, and spacing tooth piece 12 and tooth mouth 13 joint, thereby realize the secret laminating of contact plate 10 and battery case 3 inner wall, no longer gapped, effectual energy storage battery equipment of avoiding appearing shaking when using, when rocking, battery protection shield main part 1 breaks away from the short circuit with battery pack, lose the protection to the battery overcharge, overdischarge, overcurrent and short circuit, influence energy storage battery's normal use.

The outside of the connecting plate 9 is carved with anti-skidding lines, which is convenient for the adjustment of personnel.

And a rubber sleeve is fixed on the outer side of the contact plate 10, so that the friction force is increased, and the movement is prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that the same may be practiced without these specific details.

Claims

1. Energy storage battery protection circuit board, including battery protection shield main part (1), contact module (2) and battery case (3), its characterized in that: the battery protection plate main body (1) is positioned in the battery shell (3), the contact assemblies (2) are arranged in two numbers, are symmetrically distributed and fixed on the surface of the battery protection plate main body (1), and are in contact with the inner wall of the battery shell (3).

2. The energy storage battery protection circuit board of claim 1, characterized in that: contact module (2) comprises extruded article (4), sliding sleeve (5), slide bar (6) and spring (7), two regulation mouth (8) have been seted up to the symmetry on battery protection shield main part (1), extruded article (4) are equipped with two, and symmetric distribution fixes on battery protection shield main part (1), sliding sleeve (5) one end sliding sleeve is in slide bar (6) one end outside, and sliding sleeve (5) and slide bar (6) outer end are fixed with two extruded article (4) respectively, spring (7) cover is in sliding sleeve (5) outside, and spring (7) both ends are fixed with two extruded article (4) respectively.

3. The energy storage battery protection circuit board of claim 2, wherein: extruded article (4) comprise connecting plate (9), contact plate (10), L shape limiting plate (11) and spacing tooth piece (12), L shape limiting plate (11) are fixed in battery protection board main part (1) bottom, contact plate (10) outside and L shape limiting plate (11) inner wall sliding connection, and contact plate (10) one end is fixed with connecting plate (9), connecting plate (9) outside and regulation mouth (8) inner wall sliding connection, and connecting plate (9) one side is fixed with sliding sleeve (5) or slide bar (6) one end, regulation mouth (8) inboard equidistance is equipped with a plurality of tooth mouths (13), spacing tooth piece (12) are equipped with a plurality ofly, and a plurality of spacing tooth piece (12) equidistance are fixed and are close to tooth mouth (13) one side in connecting plate (9).

4. The energy storage battery protection circuit board of claim 3, wherein: the outer side of the connecting plate (9) is carved with anti-skid grains.

5. The energy storage battery protection circuit board of claim 3, wherein: and a rubber sleeve is fixed on the outer side of the contact plate (10).