CN212648330U

CN212648330U - Portable lithium battery with heat dissipation performance

Info

Publication number: CN212648330U
Application number: CN202021441597.0U
Authority: CN
Inventors: 许阳秋; 罗超; 申智渊; 张志远
Original assignee: Shenzhen Kweight Technology Co ltd
Current assignee: Shenzhen Kweight Technology Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-02
Anticipated expiration: 2030-07-21

Abstract

The utility model relates to a lithium cell technical field especially relates to a portable lithium cell with heat dispersion, including box and group battery, the group battery includes battery monomer and apron, and the outside of apron is provided with the supporting seat, and the middle part of supporting seat has been seted up and has been supported the groove, and the inboard of box is provided with the bracing piece, and the bracing piece includes supporting part and location portion, and location portion inlays and locates support inslot, supporting part and the lateral wall looks butt that supports the groove. Through the setting of supporting seat and bracing piece, seted up on the supporting seat and supported the groove, the bracing piece includes supporting part and location portion, and location portion inlays to be located and supports the inslot, supports the mutual butt of lateral wall in groove and the lateral wall of location portion to the location of group battery and box has been realized. The supporting part is in butt joint with the side wall of the supporting groove, so that a certain heat dissipation space exists between the battery pack and the box body, and heat emitted by the battery pack overflows from the heat dissipation space, so that heat accumulation is reduced, and the heat dissipation performance of the portable lithium battery is improved.

Description

Portable lithium battery with heat dissipation performance

Technical Field

The utility model relates to a lithium cell technical field especially relates to a portable lithium cell with heat dispersion.

Background

The lithium ion battery is a secondary battery, mainly depends on lithium ions to move between a positive electrode and a negative electrode to work, and has the advantages of high energy density, high average output voltage and small self-discharge. The lithium ion battery has high volumetric specific energy and mass specific energy, can be charged and has no pollution, and brings market opportunity to the lithium ion battery along with the development of telecommunication and information markets.

In order to improve the convenience of using the lithium battery, in the prior art, the lithium battery body is often installed in a box body to form a lithium battery box, and a handle is arranged at the bottom of the box body, so that the lithium battery box is convenient to carry, and the convenience of using the lithium battery is improved.

However, in the process of practical use, when the lithium battery supplies power to the electric appliance, certain heat can be generated, and the box body is internally provided with a relatively closed space, so that the heat generated by the lithium battery is not easy to dissipate, and certain potential safety hazards are caused to the use of the portable lithium battery.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a portable lithium cell with heat dispersion aims at promoting portable lithium cell's heat dispersion to promote the security that the lithium cell used.

In order to achieve the above object, the utility model provides a portable lithium battery with heat dispersion, include the box and install the group battery in the box, the group battery includes the battery monomer and installs in the apron in the battery monomer outside, the outside of apron is provided with the supporting seat, support groove has been seted up at the middle part of supporting seat, the inboard of box be provided with support the corresponding bracing piece in groove, the bracing piece is including being fixed in supporting part on the box with set up in location portion on the supporting part, location portion inlays to be located support inslot, the supporting part with support the lateral wall looks butt in groove.

Through adopting above-mentioned technical scheme, the box protects the group battery, and the apron protects battery monomer. Through the setting of supporting seat and bracing piece, seted up on the supporting seat and supported the groove, the bracing piece includes supporting part and location portion, and location portion inlays to be located and supports the inslot, supports the mutual butt of lateral wall in groove and the lateral wall of location portion to the location of group battery and box has been realized. The supporting part is in butt joint with the side wall of the supporting groove, so that a certain heat dissipation space exists between the battery pack and the box body, and heat emitted by the battery pack overflows from the heat dissipation space, so that heat accumulation is reduced, and the heat dissipation performance of the portable lithium battery is improved.

Preferably, an end of the positioning portion abuts against a bottom of the support groove.

By adopting the technical scheme, the end part of the positioning part is abutted against the bottom of the supporting groove, so that the contact area of the supporting rod and the supporting seat is increased, and the supporting reliability of the supporting rod to the supporting seat is improved.

Preferably, the width of the positioning part is gradually reduced from the end of the supporting part in a direction approaching the battery pack to form a guide part.

By adopting the technical scheme, the guide part is arranged, so that the guide effect is achieved when the positioning part is inserted into the support groove, the positioning part can slide into the support groove along the gradually reduced side surface of the positioning part, and the convenience of inserting the positioning part into the support groove is improved.

Preferably, one side of the box body is provided with an exhaust hole.

Through adopting above-mentioned technical scheme, the heat that the group battery produced can be through outside the exhaust hole discharge box to thermal giving off has been accelerated.

Preferably, a heat dissipation fan corresponding to the exhaust hole is disposed inside the case.

Through adopting above-mentioned technical scheme, through radiator fan's setting, discharge of hot-air through the fan acceleration to the radiating effect has been promoted.

Preferably, the number of the exhaust holes is two, the two exhaust holes are arranged at intervals along the width direction of the box body (1), and the positions, corresponding to the exhaust holes, on the inner side of the box body are respectively provided with a cooling fan.

Through adopting above-mentioned technical scheme, through having set up two radiator fan and accelerated the circulation flow rate of gas in the box, be favorable to the heat in the box to be discharged.

Preferably, the box body is provided with a convection hole.

Through adopting above-mentioned technical scheme, through the setting to the discharge orifice, increased the air intake speed of box, the outside cold air of the box of being convenient for enters into the box inside with higher speed to cooperation radiator fan has improved the speed that box and outside air exchanged.

Preferably, the convection hole is opened at a side of the case body away from the exhaust hole.

Through adopting above-mentioned technical scheme, convection current hole sets up respectively in the both sides of box with the exhaust hole, therefore, at the during operation, can drive a large amount of air flows in the box to further improve radiating efficiency.

Preferably, the top and the side wall of the cover plate are both provided with heat dissipation grooves.

Through adopting above-mentioned technical scheme, through seting up of radiating groove, the heat that the battery monomer of being convenient for produced distributes to the box in from the apron to the radiating efficiency has been improved.

Preferably, the bottom of the box body is provided with a heat dissipation edge.

Through adopting above-mentioned technical scheme, through the setting of heat dissipation arris, increased the heat radiating area of bottom half to the radiating rate of the box of acceleration.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the portable lithium battery of the present invention;

fig. 2 is a schematic view of the portable lithium battery according to the present invention;

FIG. 3 is a schematic structural view of a heat dissipation edge of the present invention;

fig. 4 is a schematic view illustrating the installation of the cover plate and the battery cell according to the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4 according to the present invention;

fig. 6 is an enlarged view of the point B in fig. 2 according to the present invention.

The reference numbers illustrate:

1-a box body; 11-left box body; 12-right box body; 13-a handle; 14-heat dissipation edges; 15-support rods; 151-a support portion; 152-a positioning section; 153-a guide; 16-air vent; 17-a radiator fan; 18-convection holes;

2-a battery pack; 21-battery cell; 22-a cover plate; 221-heat dissipation grooves; 23-a support seat; 24-support groove.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 6, the present invention discloses a portable lithium battery having heat dissipation performance, which includes a case 1 and a battery pack 2 installed in the case 1. Wherein, the protective case 2 is used to protect the battery pack 1, preventing the battery pack 1 from directly contacting with the outside, thereby reducing the possibility of breakage of the battery pack 1.

Specifically, please refer to fig. 2 and fig. 3 together, the case 1 includes a left case 11 and a right case 12 which are assembled together, and the left case 11 and the right case 12 are fixedly connected by bolts, so as to facilitate the disassembly and assembly of the protective case 2. The top of box 1 is provided with handle 13, and the person of facilitating the use carries and carries portable lithium cell, has improved the convenience that the lithium cell used.

Further, referring to fig. 3, the bottom of the box 1 is provided with a heat dissipation rib 14. Specifically, the plurality of heat dissipating ridges 14 are respectively distributed at equal intervals along the length direction and the width direction of the case 1, so that the bottom of the case 14 forms a grid-like structure. Through being provided with heat dissipation arris 14, increased the area of contact of box 1 bottom and air on the one hand, on the other hand makes the incomplete and ground contact of box 1 bottom, guarantees that the heat dissipation of box 1 bottom has left certain space, also plays the effect of strengthening rib simultaneously, can promote box 1's structural strength.

Referring to fig. 2 and 4, the battery pack 2 includes one or more battery cells 21 and a cover plate 22 mounted outside the battery cells 21, and the battery cells 21 are connected in series. The cap plate 22 covers the sides, top and bottom of the battery cell 21. The top and the side wall of the cover plate 22 are both provided with a strip-shaped heat dissipation groove 221. Through the opening of the heat dissipation groove 221, heat generated by the battery unit 21 can be conveniently dissipated from the cover plate 22 into the case 1, and therefore heat dissipation efficiency is improved.

Further, referring to fig. 2 to 6, a cylindrical support seat 23 is disposed on an outer side of a sidewall of the cover plate 22, and a support groove 24 is formed at a top center of the support seat 23. The inner side of the case 1 is provided with a support bar 15 corresponding to the support groove 24, and the support bar 15 includes a support part 151 fixed to the case 1 and a positioning part 152 provided on the support part 151. The support rod 15 is formed by two vertical plates which are perpendicular to each other and are arranged in a cross shape in a crossing mode. When the battery pack 2 is mounted in the case 1, the positioning portion 152 is embedded in the supporting groove 24, the end of the positioning portion 152 abuts against the bottom of the supporting groove 24, and the supporting portion 151 abuts against the side wall of the supporting groove 24, so that the contact area between the supporting rod 15 and the supporting groove 24 is increased, and the supporting reliability of the supporting rod 15 for the supporting seat 23 is improved.

Further, the width of the positioning part 152 is gradually reduced from the top of the supporting part 151 in a direction approaching the battery pack 2, forming a guide part 153, i.e., the positioning part 152 has a tapered structure. By providing the guide portion 153, when the positioning portion 152 is inserted into the support groove 24, a guiding function is performed, and the positioning portion 152 can slide into the support groove 24 along the gradually decreasing side surface thereof, thereby improving the convenience of inserting the positioning portion 152 into the support groove 24.

Further, referring to fig. 4 to 6, as a specific embodiment of the portable lithium battery with heat dissipation performance provided by the present invention, an exhaust hole 16 is opened on one side of the box body 1, and a heat dissipation fan 17 is correspondingly installed in the exhaust hole 16 inside the box body 1 through a bolt. In this embodiment, the number of the exhaust holes 16 is two, the two exhaust holes 16 are distributed at intervals along the width direction of the box body 1, correspondingly, the number of the heat dissipation fans 17 is two, and the two heat dissipation fans 17 are respectively installed at positions corresponding to the exhaust holes 16 on the inner side of the box body 1. The circulation flow rate of the gas in the box body 1 is accelerated by arranging the two cooling fans 17, and the heat in the box body 1 is favorably discharged.

Furthermore, convection holes 18 are correspondingly formed in one side, far away from the exhaust holes 16, of the box body 1, the air inlet speed of the box body 1 is increased due to the fact that the convection holes 18 are formed, and cold air outside the box body 1 can enter the box body 1 in an accelerating mode, so that the speed of exchanging the box body 1 with outside air is improved due to the cooperation of the heat dissipation fan 17. Meanwhile, since the convection hole 18 and the exhaust hole 16 are respectively disposed at both sides of the case 1, a large amount of air can be driven to flow in the case 1 during operation, thereby further improving the heat dissipation efficiency.

In the portable lithium battery provided in the embodiment, the case 1 protects the battery pack 2, and the cover plate 22 protects the battery cells 21. Through the setting of supporting seat 23 and bracing piece 15, seted up support groove 24 on the supporting seat 23, bracing piece 15 includes supporting part 151 and location portion 152, and location portion 152 inlays and locates in support groove 24, and the lateral wall of support groove 24 and the mutual butt of the lateral wall of location portion 152 to the location of group battery 2 and box 1 has been realized. The supporting portion 151 is abutted to the side wall of the supporting groove 24, so that a certain heat dissipation space exists between the battery pack 2 and the case 1, and the heat dissipated by the battery pack 2 overflows from the heat dissipation space, thereby reducing the heat accumulation and improving the heat dissipation performance of the portable lithium battery.

The above description is only an alternative embodiment of the present invention, and should not be construed as limiting the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable lithium cell with heat dispersion, includes box (1) and installs group battery (2) in box (1), its characterized in that, group battery (2) are including battery monomer (21) and install apron (22) in the battery monomer (21) outside, the outside of apron (22) is provided with supporting seat (23), support groove (24) have been seted up at the middle part of supporting seat (23), the inboard of box (1) be provided with support bar (15) corresponding with support groove (24), support bar (15) including be fixed in supporting part (151) on box (1) with set up in location portion (152) on supporting part (151), location portion (152) are inlayed and are located in support groove (24), supporting part (151) with the lateral wall looks butt of support groove (24).

2. The lithium portable battery having heat dissipation performance as set forth in claim 1, wherein an end of the positioning portion (152) abuts against a bottom of the support groove (24).

3. The lithium portable battery having heat dissipation performance as set forth in claim 1, wherein the width of the positioning portion (152) is gradually reduced from the end of the supporting portion (151) in a direction approaching the battery pack (2) to form a guide portion (153).

4. The lithium portable battery with heat dissipation performance as recited in claim 1, wherein the case (1) is provided with an air vent (16) at one side thereof.

5. The lithium portable battery having heat dissipation property as claimed in claim 4, wherein a heat dissipation fan (17) corresponding to the air discharge hole (16) is provided inside the case (1).

6. The lithium portable battery having heat dissipation performance as defined in claim 5, wherein there are two air vent holes (16), the two air vent holes (16) are provided at intervals along a width direction of the case (1), and a heat dissipation fan (17) is installed inside the case (1) at a position corresponding to each air vent hole (16).

7. The portable lithium battery with heat dissipation performance as recited in any one of claims 5-6, wherein the case (1) is formed with convection holes (18).

8. The lithium portable battery with heat dissipation performance as recited in claim 7, wherein the convection hole (18) is opened at a side of the case (1) away from the exhaust hole (16).

9. The lithium portable battery with heat dissipation performance as recited in claim 1, wherein the top and the side wall of the cover plate (22) are formed with heat dissipation grooves (221).

10. The lithium portable battery having heat dissipation performance as set forth in claim 1, wherein the bottom of the case (1) is provided with a heat dissipation rib (14).