Heat dissipation explosion-proof shell of energy storage battery

By designing energy storage battery heat dissipation and explosion -proof shells, using thermal expansion and retractable parts to disconnect circuit and heat dissipation fan to accelerate heat dissipation, solving the problem of chain explosion caused by the existing battery cooling shell cannot be disconnected in time, and effectively prevent the battery core from overheating. The effect of explosion.

CN119340558AInactive Publication Date: 2025-01-21XIAMEN LAIFULI IND & TRADE CO LTD

Patent Information

Application Number
CN202411879479.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-01-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing battery heat dissipation case cannot disconnect the circuit of a single battery cell in time during charging and discharging, resulting in a sharp rise in temperature and triggering a chain reaction, causing an uncontrollable explosion and resulting in serious losses.

Method used

Design a heat dissipation and explosion-proof shell for energy storage batteries, including an inner protective shell and an outer protective shell. The inner protective shell is equipped with a thermal expansion and contraction part. When the temperature rises, the thermal expansion and contraction part disconnects the conductive shrapnel from the positive electrode of the battery core. Open circuit to prevent overheating. A cooling fan and cooling fins are installed in the outer protective shell to speed up the air flow through the fan and improve the heat dissipation efficiency.

Benefits of technology

Effectively reduce the impact of the battery core on the surrounding battery core during the explosion, prevent the chain reaction, reduce the possibility of the cycle core explosion caused by the battery core explosion, and prevent the battery core from overheating by the heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119340558A_ABST
    Figure CN119340558A_ABST
Patent Text Reader

Abstract

The invention relates to a heat dissipation explosion-proof shell of an energy storage battery, and relates to the technical field of battery explosion prevention, the heat dissipation explosion-proof shell comprises an inner protective shell arranged on a battery cell in a sleeving manner and an outer protective shell arranged on the inner protective shell; the inner protective shell arrays are connected together to form a battery core group; the battery core group is mounted in the outer protective shell; a cooling fan is installed on one side of the protective shell, and cooling fins are fixed to the end, away from the cooling fan, of the outer protective shell; one end of the inner protective shell is provided with a cathode current-conducting plate, one end of the inner protective shell far away from the cathode current-conducting plate is provided with an anode current-conducting plate, the cathode current-conducting plate is fixedly connected with the battery cell, the anode current-conducting plate is provided with a plurality of conductive elastic sheets, and the conductive elastic sheets are elastically connected with the anode of the battery cell; and a thermal expansion telescopic piece for controlling the conductive elastic sheet to be disconnected from the positive electrode of the battery cell is mounted in the inner protective shell. The battery has the advantages that the battery circuit can be disconnected when a single battery cell emits heat in the charging process of the battery, and chain reaction caused by battery explosion is prevented.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of battery explosion-proof, and in particular to a heat dissipation explosion-proof housing for an energy storage battery. Background Art

[0002] With the development of science and technology, lithium batteries are widely used in our lives because of their excellent storage and discharge performance. However, lithium batteries generate a lot of heat during the charging and discharging process. If the heat is not dissipated in time, the lithium battery is prone to explosion as the temperature rises. When a battery core explodes, the impact force generated will puncture the adjacent battery core and the diaphragm between the positive electrode of the battery core and the negative electrode of the battery core, causing a short circuit in the circuit, or the load between the positive electrode of the battery core and the negative electrode of the battery core is too large, causing the battery core temperature to rise sharply, releasing a large amount of heat in a short time, causing more battery cores to explode, so the battery explosion is difficult to control. The existing battery heat dissipation shell cannot disconnect the battery circuit in time when a single battery core heats up during the charging and discharging process, causing the heating and explosion of a single battery core to trigger the heating and explosion of the adjacent battery cores, causing a chain reaction, making the explosion uncontrollable and causing serious losses. Therefore, there is an urgent need for a battery heat dissipation explosion-proof shell that can dissipate heat during the battery charging and discharging process and disconnect the rapidly heated battery circuit. Summary of the invention

[0003] The purpose of this application is to provide a heat dissipation explosion-proof casing for an energy storage battery to solve the technical problem that "the heating and explosion of a single battery triggers the heating and explosion of adjacent batteries, causing a chain reaction, making the explosion uncontrollable and causing serious losses."

[0004] The present application provides a heat dissipation explosion-proof shell for an energy storage battery, which adopts the following technical scheme: a heat dissipation explosion-proof shell for an energy storage battery comprises an inner protective shell sleeved on a battery cell and an outer protective shell arranged on the inner protective shell; the inner protective shells are connected together in an array to form a battery core group; the battery core group is installed inside the outer protective shell; a cooling fan is installed on one side of the protective shell, and a cooling fin is fixed on an end of the outer protective shell away from the cooling fan; a negative conductive plate is installed on one end of the inner protective shell, and a positive conductive plate is installed on an end of the inner protective shell away from the negative conductive plate, the negative conductive plate is fixedly connected to the battery cell, a plurality of conductive springs are arranged on the positive conductive plate, the conductive springs are elastically connected to the positive electrode of the battery cell, and a thermal expansion and contraction component for controlling the conductive springs to be disconnected from the positive electrode of the battery cell is installed in the inner protective shell.

[0005] Optionally, an L-shaped heat dissipation tube is installed on the heat dissipation fin; the L-shaped heat dissipation tube is inserted into the battery core group, and the L-shaped heat dissipation tube is filled with coolant; both ends of the L-shaped heat dissipation tube are closed structures; one end of the L-shaped heat dissipation tube is horizontally inserted into the battery core group, and the other end is vertically inserted into the heat dissipation fin.

[0006] Optionally, the inner protective shell is a regular hexagonal shell structure, and a plurality of support members are fixed on the inner side of the inner protective shell, and an air guide channel is formed between the support members. An explosion-proof tube can be fixedly installed on one end of the support member away from the inner protective shell; the explosion-proof tube is sleeved on the outside of the battery cell.

[0007] Optionally, the conductive spring clip is a "π"-shaped structure, a "T"-shaped groove is provided on the positive conductive plate, and the conductive spring clip is clamped in the "T"-shaped groove; a raised ring is provided on the side where the conductive spring clip is connected to the positive pole of the battery cell; a connecting plate that cooperates with the conductive spring clip is fixed on the positive pole of the battery cell; and a groove that cooperates with the raised ring is provided on the connecting plate.

[0008] Optionally, a plurality of diamond-shaped air ducts are installed between the inner protective shells; and outer sides of the diamond-shaped air ducts are in contact with the inner protective shells.

[0009] Optionally, a fan support frame is detachably mounted on a side of the outer protective shell away from the heat dissipation fins, and the heat dissipation fan is mounted on the fan support frame.

[0010] Optionally, the negative conductive plate and the positive conductive plate are respectively installed at both ends of the battery core group, and an insulating support platform is installed between the negative conductive plate and the positive conductive plate; wire connection terminals are detachably installed on the negative conductive plate and the positive conductive plate; the wire connection terminals pass through the outer protective shell.

[0011] Optionally, an insulating sleeve is arranged between the wire connection terminal and the outer protective shell; the wire connection terminal includes a pole threadedly mounted on the negative conductive plate and the positive conductive plate, a conductive plate is mounted on the pole, and a wire crimping nut is threadedly mounted on the pole; a conductive hole for the pole to pass through is opened on the outer protective shell.

[0012] Optionally, a plurality of bolt holes are provided on the outer protective shell; and the outer protective shells are connected to each other via bidirectional bolts.

[0013] Optionally, the thermal expansion telescopic component includes a thermal expansion cavity installed in an inner protective shell, a telescopic rod is slidably installed in the thermal expansion cavity; an expansion medium for controlling the extension and shortening of the telescopic rod is installed in the thermal expansion cavity; a sealing seat is installed on the telescopic rod, the sealing seat is sealed with the thermal expansion cavity, and a limit ring is provided at the end of the thermal expansion cavity; the limit ring is used to prevent the telescopic rod from separating from the thermal expansion cavity.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1. Install the battery core in the inner protective shell, and then fix multiple inner protective shells with battery cores installed together to form a battery core group, which is then fixed inside the outer protective shell. When the battery core explodes, the energy is released from both ends. The inner protective shell can reduce the impact force of the battery core on the surrounding battery cores when it explodes, and can effectively prevent the surrounding battery cores from exploding due to the impact force, thereby reducing the possibility of the battery core explosion causing the explosion of surrounding battery cores; 2. Install a cooling fan at one end of the outer protective shell and a cooling fin at the other end. The fan speeds up the air flow, thereby increasing the heat dissipation efficiency and effectively preventing the battery core from exploding; 3. A thermal expansion component for controlling the disconnection of the conductive spring from the positive electrode of the battery cell is installed in the inner protective shell. The thermal expansion component generates heat during the battery charging and discharging process. When the temperature rises to a certain temperature, it expands and contracts to disconnect the conductive spring from the positive electrode of the battery cell. At this time, the battery cell disconnects the circuit and no longer charges and discharges, thereby reducing the heat generated by the battery cell, thereby effectively preventing the battery cell from exploding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 It is a schematic diagram of the structure of a battery core pack according to an embodiment of the present application; Figure 3 It is a schematic diagram of the protective shell structure in an embodiment of the present application; Figure 4 This is a schematic diagram of the protective shell structure of the embodiment of the present application. Figure 1 ; Figure 5 This is a schematic diagram of the protective shell structure of the embodiment of the present application. Figure 2 ; Figure 6 It is a schematic diagram of the connection structure of the protective shell, the heat dissipation fins and the L-shaped heat dissipation pipe in the embodiment of the present application; Figure 7 It is a schematic diagram of the cross-sectional structure of the protective shell of the embodiment of the present application; Figure 8 This is an embodiment of the present application Figure 7 A schematic diagram of the partially enlarged structure at center A; Fig. 9 This is a schematic diagram of the structure of the positive conductive plate and the conductive spring sheet in the embodiment of the present application; Fig.10 is a schematic diagram of the side structure of a battery core pack in an embodiment of the present application; Fig.11 This is a schematic diagram of the fan support structure of an embodiment of the present application; Fig.12 This is a schematic diagram of the structure of the wire connection terminal according to an embodiment of the present application; Fig.13This is a schematic diagram of the connection structure between the outer protective shell and the outer protective shell in an embodiment of the present application; Fig.14 This is a schematic diagram of the structure of the thermal expansion and contraction member according to an embodiment of the present application; Fig.15 It is a schematic diagram of the cross-sectional structure of the thermal expansion and contraction component of the embodiment of the present application.

[0016] In the figure, 1, inner protective shell; 11, support member; 12, explosion-proof pipe; 2, outer protective shell; 21, fan support frame; 22, bolt hole; 23, two-way bolt; 3, cooling fan; 4, cooling fin; 5, L-shaped heat dissipation pipe; 6, negative conductive plate; 7, positive conductive plate; 71, conductive spring; 711, raised ring; 712, connecting piece; 72, thermal expansion and contraction member; 721, thermal expansion cavity; 722, telescopic rod; 723, limit ring; 724, sealing seat; 8, diamond-shaped air duct; 9, insulating support platform; 10, wire connection terminal; 101, insulating sleeve; 102, pole; 103, conductive plate; 104, wire crimping nut. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 -Attached Fig.15 , further details of this application are given.

[0018] Reference Figure 1 , Figure 2 , Figure 3 A heat dissipation explosion-proof shell for an energy storage battery comprises an inner protective shell 1 sleeved on a battery cell and an outer protective shell 2 arranged on the inner protective shell 1; the inner protective shells 1 are connected together in an array to form a battery core group; the battery core group is installed inside the outer protective shell 2; a cooling fan 3 is installed on one side of the outer protective shell 2, and a cooling fin 4 is fixed on the end of the outer protective shell 2 away from the cooling fan 3; a negative conductive plate 6 is installed on one end of the inner protective shell 1, and a positive conductive plate 7 is installed on the end of the inner protective shell 1 away from the negative conductive plate 6, the negative conductive plate 6 is fixedly connected to the battery cell, a plurality of conductive spring plates 71 are arranged on the positive conductive plate 7, the conductive spring plates 71 are elastically connected to the positive electrode of the battery cell, and a thermal expansion and contraction component 72 for controlling the conductive spring plates 71 to be disconnected from the positive electrode of the battery cell is installed in the inner protective shell 1.

[0019] The battery core is installed in the inner protective shell 1, and then a plurality of inner protective shells 1 with battery cores installed are fixed together to form a battery core group, and then fixedly installed inside the outer protective shell 2. When the battery core explodes, the energy is released from both ends. The inner protective shell 1 can reduce the impact force of the battery core on the surrounding battery cores when the battery core explodes, and can effectively prevent the surrounding battery cores from exploding due to the impact force, thereby reducing the possibility of the battery core explosion causing the explosion of the surrounding battery cores; Reference Figure 4 , Figure 5, by installing a cooling fan 3 at one end of the outer protective shell 2 and a cooling fin 4 at the other end. The fan 3 speeds up the air flow, thereby speeding up the heat dissipation efficiency and effectively preventing the battery core from exploding; Reference Figure 3 A thermal expansion and contraction component 72 for controlling the conductive spring sheet 71 to be disconnected from the positive electrode of the battery cell is installed in the inner protective shell 1. The thermal expansion and contraction component 72 generates heat during the battery charging and discharging process. When the temperature rises to a certain temperature, it stretches to disconnect the conductive spring sheet 71 from the positive electrode of the battery cell. At this time, the battery cell disconnects the circuit and no longer charges and discharges, thereby reducing the heat generated by the battery cell, thereby effectively preventing the battery cell from exploding.

[0020] During the process of charging and discharging the battery, the cooling fan 3 works to speed up the heat dissipation so that the battery can operate normally. When the temperature of the battery core rises rapidly to a certain temperature and cannot be cooled by the cooling fan 3, the thermal expansion and expansion component 72 is heated and elongated, and the conductive spring piece 71 is separated from the positive electrode of the battery core, so that the battery core stops charging and discharging. When the temperature drops, the thermal expansion and expansion component 72 shortens, and the conductive spring piece 71 is connected to the positive electrode of the battery core, so that the battery core can be charged and discharged again, thereby effectively preventing the battery core from exploding.

[0021] Reference Figure 3 , Figure 6 , an L-shaped heat dissipation tube 5 is installed on the heat dissipation fin 4; the L-shaped heat dissipation tube 5 is inserted into the battery core group, and the L-shaped heat dissipation tube 5 is filled with coolant; both ends of the L-shaped heat dissipation tube 5 are closed structures; one end of the L-shaped heat dissipation tube 5 is horizontally inserted into the battery core group, and the other end is vertically inserted into the heat dissipation fin 4; when the battery core temperature is at room temperature, the coolant is located in a section horizontally inserted into the battery core group, and when the battery core is in the process of charging and discharging, the coolant absorbs heat and vaporizes, rises to a section vertically inserted into the heat dissipation fin 4, and accelerates heat loss in the wind and the heat dissipation fin 4, and liquefies again and returns to a section horizontally inserted into the battery core group, thereby improving the thermal conductivity efficiency of the L-shaped heat dissipation tube 5 and improving the heat dissipation performance; (the coolant can be distilled water, alcohol and other substances).

[0022] Reference Figure 3 , Figure 6The inner protective shell 1 is a regular hexagonal shell structure, and the material is aluminum alloy. A plurality of support members 11 are fixed on the inner side of the inner protective shell 1, and an air guide channel is formed between the support members 11. The air guide channel allows the wind generated by the cooling fan 3 to pass through, thereby accelerating the heat dissipation of the inner protective shell 1, thereby improving the heat dissipation efficiency; when the debris generated by the battery explosion is buffered by the support member 11, the battery explosion debris can be reduced from spreading to the surroundings, causing the adjacent battery core to be impacted and exploded; an explosion-proof tube 12 can be fixedly installed at one end of the support member 11 away from the inner protective shell 1; the explosion-proof tube 12 is sleeved on the outside of the battery core; the material of the explosion-proof tube 12 is a material with good thermal conductivity (such as copper tubes, steel tubes, aluminum alloy tubes, etc.), and under the action of the explosion-proof tube 12, the explosion energy of the battery core can be enhanced to be released from both ends of the battery, and the battery explosion energy can be reduced. Release to the surroundings, thereby reducing the chain reaction of surrounding batteries caused by the battery explosion; The inner protective shell 1 and the explosion-proof tube 12 can block sharp objects and prevent the battery core from being punctured by sharp objects and causing explosion.

[0023] Reference Figure 7 , Figure 8 , Fig. 9 The conductive spring piece 71 is a "π"-shaped structure, which can produce deformation better. When the temperature of the battery core is reduced, the conductive spring piece 71 can be quickly reconnected with the positive electrode of the battery core under the action of elastic force; a "T"-shaped groove is provided on the positive conductive plate 7, and the conductive spring piece 71 is clamped in the "T"-shaped groove to effectively prevent the conductive spring piece 71 from being separated from the positive conductive plate 7, causing poor contact and power failure; when the conductive spring piece 71 is extended after the thermal expansion and expansion member 72 is extended, the side of the conductive spring piece 71 connected to the positive electrode of the battery core approaches the positive conductive plate 7, so that the positive electrode of the battery core is separated from the conductive spring piece 71, resulting in a short circuit, thereby stopping the charging and discharging of the battery core and reducing the temperature of the battery core; when the temperature of the battery core is reduced, the thermal expansion and expansion member 72 is shortened, and the conductive spring piece 71 is reconnected with the positive electrode of the battery core so that the battery core can be charged and discharged again, thereby effectively preventing the battery from exploding.

[0024] Reference Figure 8 , Fig. 9 A raised ring 711 is provided on the side where the conductive spring piece 71 is connected to the positive electrode of the battery cell; a connecting piece 712 that cooperates with the conductive spring piece 71 is fixed on the positive electrode of the battery cell; a groove that cooperates with the raised ring 711 is provided on the connecting piece 712, and the contact area between the conductive spring piece 71 and the connecting piece 712 can be increased by cooperating with the raised ring 711 and the groove, so as to improve the conduction efficiency; at the same time, there is a certain connection distance between the groove and the raised ring 711, and there can be a certain temperature buffer zone, which can effectively prevent accidental power failure.

[0025] Reference Figure 5 , Fig.10A plurality of diamond-shaped air ducts 8 are installed between the inner protective shell 1; the outer side of the diamond-shaped air duct 8 is in contact with the inner protective shell 1; the diamond-shaped air duct 8 and the inner protective shell 1 are fixed together by glue, which can make the structure of the inner protective shell 1 more stable after connection, and at the same time, wind can pass through the diamond-shaped air duct 8 to improve the heat dissipation efficiency.

[0026] Reference Figure 5 , Fig.11 A fan support frame 21 is detachably mounted on one side of the outer protective shell 2 away from the heat dissipation fins 4, and the heat dissipation fan 3 is mounted on the fan support frame 21; the fan support frame 21 and the heat dissipation fan 3 can be removed from the outer protective shell 2, which is convenient for disassembly and installation of the battery core pack.

[0027] Reference Figure 2 The negative conductive plate 6 and the positive conductive plate 7 are respectively installed at both ends of the battery core group, and an insulating support platform 9 is installed between the negative conductive plate 6 and the positive conductive plate 7; the insulating support platform 9 is a ceramic material, which can absorb the heat from the negative conductive plate 6 and the positive conductive plate 7; at the same time, a certain distance is maintained between the negative conductive plate 6 and the positive conductive plate 7 to effectively prevent short circuit; the negative conductive plate 6 and the positive conductive plate 7 are detachably installed with wire connection terminals 10; the wire connection terminals 10 pass through the outer protective shell 2, which is convenient for the wire to be connected to the wire connection terminals 10 to realize charging and discharging.

[0028] Reference Figure 2 , Figure 3 , Figure 4 , Fig.12 An insulating sleeve 101 is provided between the wire connection terminal 10 and the outer protective shell 2; the insulating sleeve 101 can prevent leakage; the wire connection terminal 10 includes a pole 102 threadedly mounted on the negative conductive plate 6 and the positive conductive plate 7. When the battery core group is installed in the outer protective shell 2, the pole 102 is connected to the negative conductive plate 6 and the positive conductive plate 7, which can reduce the displacement of the battery core group in the outer protective shell 2 and improve the stability of the battery core group after installation; A conductive electrode plate 103 is threadedly installed on the pole 102, and a wire crimping nut 104 is threadedly installed on the pole 102; when the wire crimping nut 104 is locked, the wire can be pressed against the conductive electrode plate 103 to improve the stability of the wire connection; a conductive hole is opened on the outer protective shell 2 for the pole 102 to pass through.

[0029] Reference Fig.13 A plurality of bolt holes 22 are provided on the outer protective shell 2; the outer protective shells 2 are connected to each other by bidirectional bolts 23; and a movable gap is reserved between the multiple battery packs after they are connected, so as to facilitate air flow between the batteries, improve the heat dissipation effect, and at the same time improve the stability of the connection between the battery packs.

[0030] Reference Fig.14 , Fig.15 The thermal expansion and retractable member 72 includes a thermal expansion cavity 721 installed in the inner protective shell 1, in which a telescopic rod 722 is slidably installed; an expansion medium for controlling the extension and shortening of the telescopic rod 722 is installed in the thermal expansion cavity 721; a sealing seat 724 is installed on the telescopic rod 722, and the sealing seat 724 is sealed and connected to the thermal expansion cavity 721; a limiting ring 723 is provided at the end of the thermal expansion cavity 721; the limiting ring 723 is used to prevent the telescopic rod 722 from separating from the thermal expansion cavity 721; when the thermal expansion cavity 721 absorbs heat, the volume of the expansion medium increases, the telescopic rod 722 extends, and the conductive spring 71 is pushed to disconnect from the positive electrode of the battery core; when the temperature of the battery core decreases, the volume of the expansion medium decreases, the telescopic rod 722 shortens, and the conductive spring 71 is connected to the positive electrode of the battery core again.

[0031] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipation explosion-proof housing for an energy storage battery, comprising an inner protective shell (1) sleeved on a battery cell and an outer protective shell (2) arranged on the inner protective shell (1); the inner protective shells (1) are connected together in an array to form a battery core group; the battery core group is installed inside the outer protective shell (2); a heat dissipation fan (3) is installed on one side of the outer protective shell (2), and a heat dissipation fin (4) is fixed on one end of the outer protective shell (2) away from the heat dissipation fan (3); a negative electrode conductive plate (6) is installed on one end of the inner protective shell (1), and a positive electrode conductive plate (7) is installed on one end of the inner protective shell (1) away from the negative electrode conductive plate (6), the negative electrode conductive plate (6) is fixedly connected to the battery cell, and a plurality of conductive springs (71) are arranged on the positive electrode conductive plate (7), and the conductive springs (71) The inner protective shell (1) is elastically connected to the positive electrode of the battery cell, and a thermal expansion and contraction component (72) for controlling the conductive spring sheet (71) to be disconnected from the positive electrode of the battery cell is installed in the inner protective shell (1); the thermal expansion and contraction component (72) comprises a thermal expansion cavity (721) installed in the inner protective shell (1), and a telescopic rod (722) is slidably installed in the thermal expansion cavity (721); an expansion medium for controlling the extension and contraction of the telescopic rod (722) is installed in the thermal expansion cavity (721); a sealing seat (724) is installed on the telescopic rod (722), and the sealing seat (724) is sealedly connected to the thermal expansion cavity (721); a limiting ring (723) is provided at the end of the thermal expansion cavity (721); the limiting ring (723) is used to prevent the telescopic rod (722) from separating from the thermal expansion cavity (721).

2. The heat dissipation explosion-proof housing for energy storage batteries according to claim 1, characterized in that: An L-shaped heat dissipation tube (5) is mounted on the heat dissipation fin (4); the L-shaped heat dissipation tube (5) is inserted into the battery core group, and the L-shaped heat dissipation tube (5) is filled with coolant; both ends of the L-shaped heat dissipation tube (5) are closed structures; one end of the L-shaped heat dissipation tube (5) is horizontally inserted into the battery core group, and the other end is vertically inserted into the heat dissipation fin (4).

3. The heat dissipation explosion-proof housing for energy storage batteries according to claim 1, characterized in that: The inner protective shell (1) is a regular hexagonal shell structure, a plurality of support members (11) are fixed inside the inner protective shell (1), and an air guide channel is formed between the support members (11); an explosion-proof tube (12) can be fixedly mounted on one end of the support member (11) away from the inner protective shell (1); the explosion-proof tube (12) is sleeved on the outside of the battery cell.

4. The heat dissipation explosion-proof housing for energy storage batteries according to claim 3, characterized in that: The conductive spring sheet (71) is of a "π"-shaped structure; a "T"-shaped groove is provided on the positive electrode conductive plate (7), and the conductive spring sheet (71) is clamped in the "T"-shaped groove; a protruding ring (711) is provided on the side of the conductive spring sheet (71) that is connected to the positive electrode of the battery cell; a connecting sheet (712) that cooperates with the conductive spring sheet (71) is fixed on the positive electrode of the battery cell; and a groove that cooperates with the protruding ring (711) is provided on the connecting sheet (712).

5. The heat dissipation explosion-proof housing for energy storage batteries according to claim 3, characterized in that: A plurality of rhombus-shaped air ducts (8) are installed between the inner protective shells (1); the outer sides of the rhombus-shaped air ducts (8) are in contact with the inner protective shells (1).

6. The heat dissipation explosion-proof housing for energy storage batteries according to claim 1, characterized in that: A fan support frame (21) is detachably mounted on a side of the outer protective shell (2) away from the heat dissipation fins (4), and the heat dissipation fan (3) is mounted on the fan support frame (21).

7. The heat dissipation explosion-proof housing for energy storage batteries according to claim 1, characterized in that: The negative conductive plate (6) and the positive conductive plate (7) are respectively mounted at two ends of the battery core group, and an insulating support platform (9) is mounted between the negative conductive plate (6) and the positive conductive plate (7); wire connection terminals (10) are detachably mounted on the negative conductive plate (6) and the positive conductive plate (7); and the wire connection terminals (10) pass through the outer protective shell (2).

8. The heat dissipation explosion-proof housing for energy storage batteries according to claim 7, characterized in that: An insulating sleeve (101) is provided between the wire connection terminal (10) and the outer protective shell (2); the wire connection terminal (10) comprises a pole (102) threadedly mounted on a negative conductive plate (6) and a positive conductive plate (7), a conductive plate (103) being mounted on the pole (102), and a wire crimping nut (104) being threadedly mounted on the pole (102); and a conductive hole for the pole (102) to pass through is provided on the outer protective shell (2).

9. The heat dissipation explosion-proof housing for energy storage batteries according to claim 7, characterized in that: The outer protective shell (2) is provided with a plurality of bolt holes (22); the outer protective shells (2) are connected to each other via bidirectional bolts (23).

Citation Information

Patent Citations

  • Heat radiating device of power battery

    CN104466298A

  • Multi-core mobile phone lithium battery

    CN113437450A

  • Power lithium battery pack of high security

    CN206711984U

  • Explosion-proof flame-retardant structure of lithium battery

    CN214411451U

  • Overheat power-off mechanism of polymer lithium ion battery

    CN216980829U

Cited By

  • 5G explosion-proof PDA

    CN120546718A

  • Box-type energy storage battery system

    CN121035488A