Explosion-proof lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, in particular to an anti-explosion lithium battery which comprises an upper shell assembly, protection assemblies, bases, a wire holder and a lithium battery pack, the protection assemblies are connected to the positions, close to the four corners, of the outer portion of the upper shell assembly, the bases are connected to the lower ends of the upper shell assembly and the protection assemblies, and the lithium battery pack is connected to the middle of the upper end of the base. The upper portion of one side of the lithium battery pack is connected with a wire holder, the upper shell assembly is composed of a top plate, a handle, a negative pressure valve, a wire groove, a shell, cooling fins, a concave area and an upper battery groove, the protection assembly is composed of multiple sets of first protection columns and second protection columns, an inserting groove is formed in the position, close to the edge, of the upper end of the base, and a lower battery groove is formed in the inserting groove. A plurality of groups of electric interfaces are arranged on one side of the wire holder, a plurality of groups of negative pressure valve interfaces are arranged on two sides of the upper end of the lithium battery pack, a plug interface is arranged on the upper part of one side of the lithium battery pack, and an explosion-proof membrane is arranged outside the lithium battery pack.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, concretely is a kind of explosion-proof lithium battery. BACKGROUND

[0002] Lithium battery itself is very active due to constituent substance, there is still potential safety hazard, under improper use or extreme condition, lithium battery can occur electrolyte decomposition, combustion even explosion and other accidents.

[0003] Therefore, it is necessary to design an explosion-proof lithium battery to solve the problems in the above background technology. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problems in the prior art and provides an explosion-proof lithium battery.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An explosion-proof lithium battery, including upper shell assembly, protection assembly, base, wiring seat and lithium battery group, the upper shell assembly outside is connected with protection assembly near four corners, the upper shell assembly and protection assembly lower extreme all are connected with base, the base upper end middle part is connected with lithium battery group, and the upper part of one side of lithium battery group is connected with wiring seat;

[0007] The upper shell assembly is composed of top plate, handle, negative pressure valve, wire slot, shell, fin, recess area and upper battery tank, and the lower end of the top plate is provided with a shell near the edge, the shell is provided with a plurality of fins outside, the upper end of the top plate is provided with a handle in the middle, the upper end of the top plate is provided with a plurality of negative pressure valves on both sides, the lower end of the top plate is provided with an upper battery tank, the upper part of one side of the shell is provided with a wire slot, and the inner wall of the shell is provided with a plurality of recess areas;

[0008] The protection assembly is composed of a plurality of first protection columns and second protection columns;

[0009] The upper end of the base is provided with a plug-in slot near the edge, and the plug-in slot is provided with a lower battery tank;

[0010] The wiring seat is provided with a plurality of electrical interfaces on one side;

[0011] The upper end of the lithium battery group is provided with a plurality of negative pressure valve interfaces on both sides, the upper part of one side of the lithium battery group is provided with a plug-in interface, and the outer portion of the lithium battery group is provided with an explosion-proof membrane.

[0012] As a preferred scheme of the utility model, the first protection column, the second protection column and the shell are connected by sleeving, and the first protection column, the second protection column and the base and the top plate are connected by bolts.

[0013] As the preferred scheme of the utility model, the negative pressure valve and the negative pressure valve interface are connected through plug-in connection.

[0014] As the preferred scheme of the utility model, the plug interface and the wiring holder are connected through plug-in connection, the wiring holder and the wire slot are connected through sleeve connection and are locked through bolt limiting.

[0015] As the preferred scheme of the utility model, the shell and the plug-in slot are connected through sleeve connection and are locked through bolt limiting.

[0016] As the preferred scheme of the utility model, the lithium battery group and the upper battery slot and the lower battery slot are connected through sleeve connection.

[0017] In conclusion, the technical effect and the advantage of the utility model are as follows: the explosion-proof lithium battery adopts detachable design, realizes quick battery replacement, when the gas in the lithium battery group is too much, the explosion-proof membrane expands, the lower puncture membrane is punctured, the expanded gas in the lithium battery group is discharged from the lower part of the explosion-proof membrane, thereby avoiding the explosion of the explosion-proof membrane due to the high gas pressure, when the internal pressure of the lithium battery group or the shell is too high, the negative pressure valve is automatically opened, the gas in the lithium battery group or the shell is discharged to the outside, thereby reducing the pressure accumulation in the lithium battery group or the shell, and ensuring that the lithium battery group or the shell will not explode due to the high pressure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structural drawing of the utility model;

[0019] Figure 2 It is the upper shell assembly structural drawing of the utility model;

[0020] Figure 3 It is the protective assembly structural drawing of the utility model;

[0021] Figure 4 It is the base structural drawing of the utility model;

[0022] Figure 5 It is the wiring holder structural drawing of the utility model;

[0023] Figure 6 It is the lithium battery group structural drawing of the utility model;

[0024] Figure 7 It is the lower part structural drawing of the upper shell assembly of the utility model.

[0025] In the figure: 1, upper shell assembly; 101, top plate; 102, handle; 103, negative pressure valve; 104, wire slot; 105, outer shell; 106, cooling fin; 107, recess area; 108, upper battery slot; 2, protection assembly; 201, first protection column; 202, second protection column; 3, base; 301, lower battery slot; 302, plug-in slot; 4, wiring seat; 401, electrical interface; 5, lithium battery pack; 501, negative pressure valve interface; 502, plug-in interface; 503, explosion-proof membrane. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] Referring to Figures 1-7 An explosion-proof lithium battery comprises an upper shell assembly 1, a protection assembly 2, a base 3, a wiring seat 4 and a lithium battery pack 5. The protection assembly 2 is connected to the upper shell assembly 1 near the four corners. The lower ends of the upper shell assembly 1 and the protection assembly 2 are both connected to the base 3. The upper end of the base 3 is connected to the lithium battery pack 5 in the middle. The wiring seat 4 is connected to the upper part of one side of the lithium battery pack 5. The upper shell assembly 1 comprises a top plate 101, a handle 102, a negative pressure valve 103, a wire slot 104, an outer shell 105, a cooling fin 106, a recess area 107 and an upper battery slot 108. The lower end of the top plate 101 is provided with the outer shell 105 near the edge. The outer shell 105 is provided with a plurality of cooling fins 106. The upper end of the top plate 101 is provided with the handle 102 in the middle. The upper end of the top plate 101 is provided with a plurality of negative pressure valves 103 on both sides. The lower end of the top plate 101 is provided with the upper battery slot 108. The upper part of one side of the outer shell 105 is provided with the wire slot 104. The inner wall of the outer shell 105 is provided with a plurality of recess areas 107. The protection assembly 2 comprises a plurality of first protection columns 201 and second protection columns 202. The upper end of the base 3 is provided with the plug-in slot 302 near the edge. The plug-in slot 302 is provided with the lower battery slot 301. The wiring seat 4 is provided with a plurality of electrical interfaces 401 on one side. The lithium battery pack 5 is provided with a plurality of negative pressure valve interfaces 501 on both sides of the upper end. The upper part of one side of the lithium battery pack 5 is provided with the plug-in interface 502. The lithium battery pack 5 is provided with the explosion-proof membrane 503.

[0028] Referring to Figures 1-7, lithium battery itself due to the composition of the material is very active, there is still potential safety hazards, improper use or extreme conditions, lithium battery may occur electrolyte decomposition, combustion and even explosion accident, the first protective column 201, the second protective column 202 and the shell 105 through the sleeve connection, the first protective column 201, the second protective column 202 and the base 3, the top plate 101 through the bolt connection, the shell 105 and the plug slot 302 through the sleeve connection and through the bolt limit locking, plug interface 502 and the terminal 4 between the plug connection, the terminal 4 and the wire slot 104 through the sleeve connection and through the bolt limit locking, lithium battery pack 5 and the upper battery groove 108, the lower battery groove 301 through the sleeve connection, the whole adopts the detachable design, realize the quick change, when the gas in lithium battery pack 5 is too much, the explosion-proof membrane 503 will expand, the puncture membrane under the explosion-proof membrane is punctured, the expansion gas in lithium battery pack 5 is discharged from the lower part of the explosion-proof membrane 503, so as to avoid the explosion of the explosion-proof membrane 503 due to the high gas pressure.

[0029] Reference Figures 1-7 , the negative pressure valve 103 and the negative pressure valve interface 501 through the plug connection, when the internal pressure of lithium battery pack 5 or the shell 105 is too high, the negative pressure valve 103 is automatically opened, the gas in lithium battery pack 5 or the shell 105 is released to the outside, so as to reduce the pressure accumulation in lithium battery pack 5 or the shell 105, ensure that lithium battery pack 5 or the shell 105 will not explode due to high pressure.

[0030] Working principle: the first protective column 201, the second protective column 202 and the shell 105 of the explosion-proof lithium battery are connected through the sleeve connection, the first protective column 201, the second protective column 202 and the base 3, the top plate 101 are connected through the bolt connection, the shell 105 and the plug slot 302 are connected through the sleeve connection and are locked through the bolt, the plug interface 502 and the terminal 4 are connected through the plug connection, the terminal 4 and the wire slot 104 are connected through the sleeve connection and are locked through the bolt, lithium battery pack 5 and the upper battery groove 108, the lower battery groove 301 are connected through the sleeve connection, the whole adopts the detachable design, realize the quick change, when the gas in lithium battery pack 5 is too much, the explosion-proof membrane 503 will expand, the puncture membrane under the explosion-proof membrane is punctured, the expansion gas in lithium battery pack 5 is discharged from the lower part of the explosion-proof membrane 503, so as to avoid the explosion of the explosion-proof membrane 503 due to the high gas pressure, the negative pressure valve 103 and the negative pressure valve interface 501 through the plug connection, when the internal pressure of lithium battery pack 5 or the shell 105 is too high, the negative pressure valve 103 is automatically opened, the gas in lithium battery pack 5 or the shell 105 is released to the outside, so as to reduce the pressure accumulation in lithium battery pack 5 or the shell 105, ensure that lithium battery pack 5 or the shell 105 will not explode due to high pressure.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof lithium battery, comprising an upper shell assembly (1), a protective assembly (2), a base (3), a terminal block (4), and a lithium battery pack (5), characterized in that: The upper shell assembly (1) is connected to a protective assembly (2) near the four corners. The lower ends of the upper shell assembly (1) and the protective assembly (2) are both connected to a base (3). The upper middle part of the base (3) is connected to a lithium battery pack (5). The upper part of one side of the lithium battery pack (5) is connected to a terminal block (4). The upper shell assembly (1) consists of a top plate (101), a handle (102), a negative pressure valve (103), a wire groove (104), an outer shell (105), a heat sink (106), a recessed area (107), and an upper battery slot (108). The lower end of the top plate (101) is provided with an outer shell (105) near the edge. The outer shell (105) is provided with multiple sets of heat sinks (106) on the outside. The upper end of the top plate (101) is provided with a handle (102) in the middle. The upper end of the top plate (101) is provided with multiple sets of negative pressure valves (103) on both sides. The lower end of the top plate (101) is provided with an upper battery slot (108). The upper part of one side of the outer shell (105) is provided with a wire groove (104). The inner wall of the outer shell (105) is provided with multiple sets of recessed areas (107). The protective component (2) consists of multiple sets of first protective posts (201) and second protective posts (202); The base (3) has a plug-in groove (302) at the upper end near the edge, and a lower battery slot (301) is provided in the plug-in groove (302). The terminal block (4) is provided with multiple electrical interfaces (401) on one side. The lithium battery pack (5) has multiple negative pressure valve interfaces (501) on both sides of its upper end, an insertion interface (502) on the upper part of one side of the lithium battery pack (5), and an explosion-proof film (503) on the outside of the lithium battery pack (5).

2. The explosion-proof lithium battery according to claim 1, characterized in that: The first protective column (201), the second protective column (202) and the outer shell (105) are connected by a sleeve, and the first protective column (201), the second protective column (202) and the base (3) and the top plate (101) are connected by bolts.

3. The explosion-proof lithium battery according to claim 1, characterized in that: The negative pressure valve (103) and the negative pressure valve interface (501) are connected by a plug-in connection.

4. The explosion-proof lithium battery according to claim 1, characterized in that: The connector (502) and the terminal block (4) are connected by plugging and unplugging, and the terminal block (4) and the wire groove (104) are connected by sleeve and locked by bolt limit.

5. The explosion-proof lithium battery according to claim 1, characterized in that: The outer shell (105) and the insertion slot (302) are connected by a sleeve and locked by bolts.

6. The explosion-proof lithium battery according to claim 1, characterized in that: The lithium battery pack (5) is connected to the upper battery compartment (108) and the lower battery compartment (301) by a sleeve connection.

Images