Protection structure of lithium battery

Abstract

The utility model relates to a protection structure of a lithium battery. The protection structure of the lithium battery comprises a bracket and a protection plate, wherein an avoiding groove is formed in the bracket; the protection plate comprises a heat dissipation aluminum shell, the heat dissipation aluminum shell is arranged in the avoiding groove, and the heat dissipation aluminum shell is tightly attached to the groove bottom of the avoiding groove. According to the scheme, the heat dissipation area of the protection plate can be increased, and heat dissipation of the protection plate is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field especially relates to a protection structure of lithium battery. BACKGROUND

[0002] In order to prevent lithium battery to appear overcharge, overdischarge, overcurrent etc., will set up protection plate on lithium battery, to play the protection effect to lithium battery.

[0003] In the related art, protection plate is usually installed in airtight space, under long time work, heat is difficult to dissipate, and heat accumulation is caused, thereby causing lithium battery to stop operation. UTILITY MODEL CONTENTS

[0004] The utility model discloses a protection structure of lithium battery, which can improve the heat dissipation area of the protection plate and accelerate the heat dissipation of the protection plate.

[0005] The utility model discloses a protection structure of lithium battery, which can improve the heat dissipation area of the protection plate and accelerate the heat dissipation of the protection plate.

[0006] The utility model discloses a protection structure of lithium battery, which can improve the heat dissipation area of the protection plate and accelerate the heat dissipation of the protection plate.

[0007] The protection plate further comprises a heating assembly, and the heating assembly is arranged on the heat dissipation aluminum shell.

[0008] The locking assembly comprises a threaded stud, the threaded stud is arranged in the avoiding slot, and a first through hole is formed in one side of the threaded stud away from the bottom of the avoiding slot.

[0009] The protection plate further comprises a mounting shell, and the mounting shell is arranged on the heat dissipation aluminum shell.

[0010] The protection plate further comprises a fastener, and the fastener is arranged on the mounting shell.

[0011] The mounting shell is fixed by penetrating the fastener through the first through hole.

[0012] A plurality of third through holes are formed in the bracket, and intervals are arranged between the third through holes.

[0013] The number of the first through holes is the same as that of the second through holes.

[0014] The number of the second through holes is the same as that of the threaded studs.

[0015] The bracket is provided with a rounded corner.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The protection plate is tightly attached to the bottom of the avoiding groove on the bracket, thereby increasing the heat dissipation area of the heat dissipation aluminum shell, so that the heat of the heat dissipation aluminum shell can be timely transmitted to the bracket, and the heat does not accumulate, thereby ensuring normal operation of the lithium battery. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments.

[0019] Figure 1 It is a structural schematic view of the protection structure of the lithium battery in an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic view of another embodiment of the protection structure of the lithium battery in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] It should be understood that although the terms "first", "second", "third" and the like can be used to describe various information in the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0023] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", and the like are to be construed as broad terms, for example, can be fixed connection, can also be detachable connection or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] In order to prevent overcharge, overdischarge, overcurrent and other problems of lithium battery, a protection plate is arranged on the lithium battery to protect the lithium battery. At present, the protection plate is usually installed in a closed space. Under long-time work, heat is difficult to dissipate, and thus heat accumulation is easily caused, thereby causing the lithium battery to stop working.

[0025] In view of the above problems, the embodiment of the present application provides a protection structure of lithium battery, which can improve the heat dissipation area of the protection plate and accelerate the heat dissipation of the protection plate.

[0026] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0027] Please refer to Figure 1 and Figure 2 A protection structure of lithium battery, comprising: a bracket 100 and a protection plate 200, the bracket 100 is provided with an avoiding slot 110; the protection plate 200 comprises a heat dissipation aluminum shell 210, the heat dissipation aluminum shell 210 is arranged in the avoiding slot 110, and the heat dissipation aluminum shell 210 is tightly attached to the bottom of the avoiding slot 210.

[0028] It should be noted that the bracket 100 is made of stainless steel, and the heat conduction coefficient of stainless steel is high, so that the heat transfer speed of stainless steel is fast. Therefore, the heat dissipation aluminum shell 210 of the protection plate 200 is tightly attached to the bottom of the avoiding slot 110 on the bracket 100, not only taking advantage of the fast heat transfer speed of stainless steel, but also increasing the heat dissipation area of the heat dissipation aluminum shell 210, so that the heat of the heat dissipation aluminum shell 210 can be timely transferred to the bracket 100, and heat accumulation is avoided, thereby ensuring the normal operation of the lithium battery.

[0029] Please refer to Figure 2 In an embodiment, the protection plate 200 further comprises a heating component 220, and the heating component 220 is arranged on the heat dissipation aluminum shell 210.

[0030] It should be noted that the heating component 220 comprises a chip and circuits electrically connected to the chip, and these circuits and the chip will generate a large amount of heat when working.

[0031] Please refer to Figure 2 In an embodiment, please refer to Figure 1The protection structure of the lithium battery further comprises a locking assembly 300, the locking assembly 300 comprises a stud 310, the stud 310 is arranged in the avoiding groove 110, and a first through hole is arranged on one side of the stud 310 away from the groove bottom of the avoiding groove 110. Specifically, the protection plate 200 further comprises a mounting shell 230, the mounting shell 230 is arranged on the heat dissipation aluminum shell 210, and a second through hole is arranged on the mounting shell 230. Specifically, the protection plate 200 further comprises a fastener 250, after the second through hole on the mounting shell 240 is arranged through the stud 310, the fastener 250 is arranged through the first through hole, so that the mounting shell 240 is fixed.

[0032] Preferably, the number of the first through holes is the same as the number of the second through holes.

[0033] Preferably, the number of the second through holes is the same as the number of the stud 310.

[0034] It should be noted that the conventional installation mode is that the fastener 250 is arranged from top to bottom to fix the protection plate 200 on the support 100, the avoiding groove 110 is partially provided with no other components except the stud 310, and then when the support 100 is stacked with the support 100, the stud 310 will interfere with the battery on the next support 100. Therefore, the lifting mode is adopted in the present application, the fastener 250 is arranged from bottom to top, and then the entire protection plate 200 is fixed on the groove bottom of the avoiding groove 110, so that the problem of insufficient space below is solved. The fastener 250 is a screw.

[0035] Please refer to Figure 1 In an embodiment, the support 100 is further provided with a fixing hole 120. It should be noted that the fixing hole 120 is used for fixing a wire harness.

[0036] Please refer to Figure 1 In an embodiment, the support 100 is further provided with a plurality of third through holes 130, and intervals are arranged between the third through holes 130. It should be noted that the third through holes 130 are used for fixing a battery module.

[0037] Please refer to Figure 1 In an embodiment, the support 100 is provided with a round corner portion 140. It can be understood that the arrangement of the round corner portion 140 makes the corner of the support 100 more smooth.

[0038] The solutions of the present application have been described in detail above with reference to the accompanying drawings. In the above examples, the description of each example is focused on respectively, and the parts not described in detail in a certain example can be referred to the relevant description of other examples. It should also be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method of the embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device of the embodiments of the present application can be combined, divided and reduced according to actual needs.

[0039] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A protection structure of a lithium battery, characterized by, The utility model relates to a protection plate and support, including: Support, is provided with the position-avoiding groove on the support; The protection plate further includes the heat -generating assembly, and the heat -generating assembly is arranged on the heat dissipation aluminum shell.

2. The protection structure for lithium batteries according to claim 1, characterized in that, Further including locking assembly, the locking assembly includes stud, the stud is arranged in the position-avoiding groove, and the first through -hole is set up to the side away from the groove bottom of the position-avoiding groove of the stud.

3. The protection structure for lithium batteries according to claim 1 or 2, characterized in that, The protection plate further includes the installation shell, and the installation shell is arranged on the heat dissipation aluminum shell, and the second through -hole is set up on the installation shell.

4. The protection structure for lithium batteries according to claim 3, characterized in that, The protection plate further includes fastener, after the second through -hole on the installation shell is worn the stud, fastener is worn the first through -hole, to fix the installation shell.

5. The protection structure for lithium batteries according to claim 4, characterized in that, The support is further provided with the fixed hole.

6. The protection structure of a lithium battery according to claim 5, wherein The support is further provided with a plurality of third through -holes, and each third through -hole is respectively provided with an interval.

7. The protective structure for lithium batteries according to claim 1, characterized in that, The number of first through -holes is same with the number of second through -holes.

8. The protection structure for lithium batteries according to claim 5 or 6, characterized in that, The number of second through -holes is same with the number of stud.

9. The protection structure of a lithium battery according to claim 8, wherein The support is provided with a fillet.

10. The protective structure for lithium batteries according to claim 1, characterized in that, ​

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