CN217281006U

CN217281006U - Battery pack

Info

Publication number: CN217281006U
Application number: CN202220090204.9U
Authority: CN
Inventors: 周志恒; 张�雄
Original assignee: Shenzhen Topband Battery Co ltd
Current assignee: Shenzhen Topband Battery Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-08-23
Anticipated expiration: 2032-01-13

Abstract

The utility model provides a battery pack, including the shell of stereoplasm and establish protection board subassembly and electric core in the shell, the shell includes the main casing body and establishes the boss on the main casing body, the main casing body communicates with the inner space of boss, and electric core establishes in the main casing body, and protection board subassembly is established in the boss, and protection board subassembly includes the control protection shield and is used for carrying out the guard plate that protects to the control protection shield, and one side of control protection shield is towards the boss inner wall, and the guard plate is established in one side of control protection shield towards the boss inner wall. The shell of this battery package is equipped with boss structure, and the protection board subassembly is established wherein, provides the isolation space for the control protection shield, and the guard plate prevents simultaneously that the control protection shield from receiving to pierce and fire and high temperature influence for the barrier propterty of battery package is higher.

Description

Battery pack

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a battery package is related to.

Background

After the plurality of battery cores are processed, assembled, packaged and the like, the battery cores are controlled or managed by the battery management system and the thermal management system together to form a battery pack.

At present, the mainstream of the battery pack on the market is the battery pack of soft package and plastic shell, the protection performance is poor, and the application range of the product is limited.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect in the correlation technique, a battery package that barrier propterty is better is provided.

The utility model provides a technical scheme that its technical problem adopted includes: the utility model provides a battery pack, include the shell of stereoplasm and establish protection board subassembly and electric core in the shell, the shell includes the main casing body and establishes boss on the main casing body, the main casing body with the inner space intercommunication of boss, establish electric core in the main casing body, protection board subassembly is established in the boss, protection board subassembly is including control protection shield and be used for right the protection board that the control protection shield protected carries out, one side orientation of control protection shield the boss inner wall, the protection board is established control protection shield orientation one side of boss inner wall.

Preferably, the number of the protection plates is at least two, and the protection plates are respectively arranged on two sides of the control protection plate.

Preferably, the battery pack includes a soft buffer provided between the protection plate and the control protection plate to separate the control protection plate from the protection plate.

Preferably, the soft buffer is arranged at the edge of the control protection plate, so that the middle part of the control protection plate is suspended.

Preferably, the housing is made of metal.

Preferably, the battery pack includes a covering layer provided in the casing to cover and fix the battery cell and the protection plate assembly together.

Preferably, the battery pack includes a soft buffer filler filled between the battery core and the protection plate assembly and the housing.

Preferably, the soft buffer filler is foam, silica gel, fireproof fiber cloth or bakelite.

Preferably, the battery pack includes a sealant filled between the battery core and the protection plate assembly and the housing.

Preferably, the battery pack comprises a lead, a first end of the lead extends out of the battery pack, and a second end of the lead is connected with an internal circuit of the battery pack after being bent inside the shell

Implement the technical scheme of the utility model, following beneficial effect has at least: the shell of the battery pack is provided with a boss structure, the protection plate assembly is arranged in the boss structure to provide an isolation space for the control protection plate, and meanwhile, the protection plate prevents the control protection plate from being affected by puncture, fire and high temperature, so that the protection performance of the battery pack is higher; when the battery pack is fixedly installed with other equipment, concave positions matched with the bosses can be arranged on the other equipment, and the bosses are used as installation positions for foolproof clamping positions, so that the battery pack is fixed stably.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of a battery pack according to an embodiment of the present invention.

Fig. 2 is an exploded view of the battery pack of fig. 1.

Fig. 3 is another exploded view of the battery pack of fig. 1.

Fig. 4 is a perspective view of the battery pack of fig. 1 with the housing and the connecting members omitted.

Fig. 5 is an exploded view of the battery pack of fig. 4.

The reference numerals in the figures denote: the protection plate comprises a shell 1, a main shell body 11, an upper shell body 111, a top surface 1111, a first side surface 1112, a first connecting hole 1113, a lower shell body 112, a bottom surface 1121, a second side surface 1122, a second connecting hole 1123, a boss 12, a connecting piece 13, a protection plate assembly 2, a control protection plate 21, a protection plate 22, a soft buffer member 23, an electric core 3, a coating layer 4, a soft buffer filler 5, a lead wire 7, a first end 71, a second end 72 and a grommet 8.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that if the orientations and positional relationships indicated by the above, below, top, bottom, inner, outer, etc. are constructed and operated in specific orientations based on the orientations and positional relationships shown in the drawings, the orientations and positional relationships are only for convenience of describing the technical solution, and the orientations and positional relationships are not necessarily for limitation. It should also be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like, if used herein, are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. If the terms "first", "second", etc. are used herein only for convenience in describing the present technical solution, they are not to be taken as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1-5, the utility model discloses a battery pack in an embodiment, including the shell 1 of stereoplasm and establish protection shield assembly 2 and electric core 3 in shell 1, shell 1 includes main casing body 11 and establishes boss 12 on main casing body 11, main casing body 11 communicates with the inner space of boss 12, electric core 3 establishes in main casing body 11, protection shield assembly 2 establishes in boss 12, one side is towards shell 1, one side is towards boss 12 inner wall, protection shield assembly 2 includes control protection shield 21 and is used for carrying out the guard plate 22 of protection to control protection shield 21, one side of control protection shield 21 is towards boss 12 inner wall, guard plate 22 establishes in one side of control protection shield 21 towards boss 12 inner wall.

The control protection board 21 is a PCB board for protecting the battery, and controls the voltage of the battery cell 3 and the current of the charge-discharge loop, and controls the on-off of the current loop in time.

The battery pack has the advantages that the shell 1 of the battery pack is provided with the boss 12 structure, the protection plate assembly 2 is arranged in the boss to provide an isolation space for the control protection plate 21, and meanwhile, the protection plate 22 prevents the control protection plate 21 from being affected by puncture, fire and high temperature, so that the protection performance of the battery pack is higher; when the battery pack is fixedly installed with other equipment, concave positions matched with the bosses 12 can be arranged on the other equipment, and the bosses 12 are used as foolproof clamping positions of installation positions, so that the battery pack is stably fixed.

Preferably, two sides of the protection plate 22 face the inner wall of the boss 12 and the battery cell 3, respectively, and the number of the protection plates 22 is at least two, and the two protection plates are respectively arranged on two sides of the control protection plate 21. The protection plate 22 is a fireproof fiberboard, a fireproof PC board or a fireproof ABS board.

Preferably, the battery pack includes a soft buffer 23 disposed between the protection plate 22 and the control protection plate 21 to separate the control protection plate 21 from the protection plate 22, and has the function of buffering the control protection plate 21 to improve the anti-falling performance of the battery. For example, in the embodiment of fig. 3-5, the battery pack includes a plurality of cells 3, which are connected by black fireproof plastic supports, all the internal circuit wires are made of high temperature resistant silica gel wires, all the positive electrodes of the single cells 3, and both sides of the whole and the positions of the nickel plate bonding wires are protected by insulating highland barley paper, and the upper and lower sides of the control protection board 21 are provided with protection boards 22 (to ensure strength and prevent the control protection board 21 from being punctured and affected by fire and high temperature) and protection supports of fireproof foam (for fire prevention and buffering).

Preferably, soft bolster 23 is established at control protection shield 21 edge, makes control protection shield 21 middle part unsettled, guarantees control protection shield 21's good heat dissipation, avoids contacting electric core 3 simultaneously, protection product safety. The soft buffer member 23 can be foam, soft silica gel, fireproof fiber cloth or bakelite, and improves the waterproof, dustproof, fireproof and anti-falling performance of the battery.

Preferably, the shell 1 is made of metal, so that the protection performance of the battery pack is higher, and the fire resistance and the penetration resistance of hard objects are higher; the main housing 11 is partially rectangular, the boss 12 is also rectangular, and the boss 12 is formed by bending the top of the metal shell 1. The shell 1 is preferably made of SUS 304 stainless steel, rust slag cannot be generated, the device cannot be affected, the strength of the shell 1 is high, the shell is suitable for various scenes, and hard objects can be prevented from being punctured, falling is prevented, and the like. The housing 1 includes an upper housing 111 and a lower housing 112, the upper housing 111 includes a top 1111 and a first side surface 1112 disposed around the top 1111, the upper housing 111 is opened downward, the lower housing 112 includes a bottom 1121 and a second side surface 1122 disposed around the bottom 1121, the lower housing 112 is opened upward, and the protrusion 12 is disposed on the top 1111 or the bottom 1121;

the upper housing 111 and the lower housing 112 are combined in an open-faced manner, the first side 1112 and the second side 1122 are overlapped, the first side 1112 and the second side 1122 are respectively provided with a first connecting hole 1113 and a second connecting hole 1123, the first connecting hole 1113 corresponds to the second connecting hole 1123 in position, and the connecting piece 13 passes through the first connecting hole 1113 and the second connecting hole 1123 from the outside and is connected with the first connecting hole 1113 and the second connecting hole 1123, so that the upper housing 111 and the lower housing 112 are fixed. The coupling member 13 is preferably a screw, and the first and

second coupling holes

1113 and 1123 are preferably screw holes. The screw holes may be used to fix the upper case 111 and the lower case 112, and may also be used as fixing holes for connecting the battery pack to an external device, which is convenient and stable.

Preferably, the battery pack includes a soft coating layer 4 disposed in the housing 1 to coat and fix the battery cell 3 and the protection plate assembly 2 together, and the coating layer 4 is preferably a heat shrinkable tube. For example, in the embodiment of fig. 2-3, the battery core 3 and the protection plate assembly 2 are externally covered by hot-blow-molded PVC fitting, sealing, fixing and covering, and 8 corners at two ends are protected and fixed by fireproof foam to prevent stress damage. After metal casing 1 is put into to electric core 3 and protection plate subassembly 2, with the intensive fixed of white glue, prevent that electric core 3 and protection plate subassembly 2 from rocking inside, prevent that liquid from getting into inside, IP67 can be arrived to waterproof grade in theory, reach the requirement completely to some medium-sized consumer

Preferably, the battery pack includes a soft buffer filler 5 filled between the battery cell 3 and the protection plate assembly 2 and the housing 1, and the soft buffer filler is filled at the corner position of the battery cell 3. The soft buffer filler 5 can be made of fireproof foam, soft silica gel, fireproof fiber cloth or bakelite, and improves the waterproof, dustproof, fireproof, hard object piercing and falling-proof performances of the battery pack.

Preferably, the battery pack comprises a sealant 6 filled between the battery core 3 and the protection plate assembly 2 and the casing 1, and used for sealing and fixing the internal components of the battery pack; the sealant 6 is preferably a white glue.

Preferably, the battery pack comprises a wire 7, the shell 1 is provided with a wire outlet, the wire outlet is provided with a soft wire protecting ring 8 to prevent the wire from being damaged, a first end 71 of the wire 7 penetrates through the wire protecting ring 8 on the wire outlet to extend out of the battery pack, a second end 72 is bent to form a U shape in the shell 1 towards one side and then is connected with an internal circuit of the battery pack, when the wire 7 is pulled, the bent U-shaped structure plays a buffering role, the soft buffering filler 5 and the sealant 6 are used for backfilling, so that the wire 7 is firmly fixed, the wire 7 is prevented from being pulled, a welding spot connected with the internal circuit of the battery is damaged, and the stable electrical property of the battery is ensured.

In conclusion, the battery pack has the advantages of good waterproof, dustproof, fireproof, hard object puncture prevention, falling prevention and other protection performances, wide application range and easiness in fixation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications, combinations, and variations may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A battery pack is characterized by comprising a hard shell (1), a protection plate component (2) and a battery core (3) which are arranged in the shell (1), the shell (1) comprises a main shell (11) and a boss (12) arranged on the main shell (11), the main shell (11) is communicated with the inner space of the boss (12), the battery core (3) is arranged in the main shell (11), the protection plate component (2) is arranged in the boss (12), the protection plate component (2) comprises a control protection plate (21) and a protection plate (22) used for protecting the control protection plate (21), one side of the control protection plate (21) faces the inner wall of the boss (12), the protection plate (22) is arranged on one side, facing the inner wall of the boss (12), of the control protection plate (21).

2. The battery pack according to claim 1, wherein the number of the protection plates (22) is at least two, and the two protection plates are respectively provided at both sides of the control protection plate (21).

3. The battery pack according to claim 1, wherein the battery pack comprises a soft buffer (23) provided between the protection plate (22) and the control protection plate (21) to separate the control protection plate (21) from the protection plate (22).

4. A battery pack according to claim 3, wherein the soft buffer (23) is provided at the edge of the control protective plate (21) to suspend the middle of the control protective plate (21).

5. A battery pack, as in claim 1, characterized in that the casing (1) is of metal.

6. The battery pack according to claim 1, characterized in that the battery pack comprises a covering layer (4) provided in the casing (1) covering and fixing the battery core (3) and the protection plate assembly (2) together.

7. The battery pack according to claim 1, characterized in that the battery pack comprises a soft buffer filler (5) filled between the battery core (3) and the protection plate assembly (2) and the housing (1).

8. The battery pack according to claim 7, wherein the soft buffer filler (5) is foam, silica gel, fire-proof fiber cloth, or bakelite.

9. The battery pack according to claim 1, characterized in that the battery pack comprises a sealing glue (6) filled between the battery core (3) and the protective plate assembly (2) and the housing (1).

10. A battery pack according to claim 1, characterized in that the battery pack comprises a wire (7), the wire (7) having a first end (71) extending outside the battery pack and a second end (72) being connected to the battery pack internal circuitry after bending inside the housing (1).