CN219513240U

CN219513240U - Liquid cooling battery box

Info

Publication number: CN219513240U
Application number: CN202320802860.1U
Authority: CN
Inventors: 王军; 谢庆; 王梓; 沈颖杰; 杨平
Original assignee: Shanghai Electric Guoxuan New Energy Technology Nantong Co ltd
Current assignee: Shanghai Electric Guoxuan New Energy Technology Nantong Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-08-11
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a liquid cooling battery box, which comprises a box body, wherein a battery module is arranged in the box body, a first fixing frame is arranged at the front end of the battery module, a second fixing frame is arranged at the rear end of the battery module, a smoke detector is arranged on the first fixing frame, and a fire-fighting joint and an explosion-proof ventilation valve are also arranged on the box body; the utility model has simple structure and novel design, can timely detect the smoke condition in the battery box, and is convenient for taking fire-fighting measures immediately when abnormality occurs.

Description

Liquid cooling battery box

Technical Field

The utility model relates to the technical field of battery cooling, in particular to a liquid cooling battery box.

Background

The battery module is formed by arranging a plurality of battery cores, and realizes the electric connection of the battery cores through the combination of the mode of series-parallel connection of electric connecting pieces, because the larger the size of the battery cells is, the central heat in the battery cores cannot be quickly transferred out, the battery packs after being grouped form heat aggregation, and the phenomena of fire and explosion are easily caused.

Disclosure of Invention

The utility model aims to provide a liquid cooling battery box so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the liquid cooling battery box comprises a box body, wherein the box body is internally used for accommodating a battery module, a first fixing frame is arranged at the front end of the battery module, and a second fixing frame is arranged at the rear end of the battery module;

the smoke detector comprises a panel, a smoke inlet is formed in the panel, a circuit board is arranged in the panel, an LED indicator light patch is arranged at the upper end of the circuit board, a smoke inlet device is further arranged on the circuit board, the side face of the smoke inlet device is hollow, a plurality of folded reflecting plates are arranged in the smoke inlet device, holes are formed in the bottom of the smoke inlet device, the bottom of the smoke inlet device is connected with a bottom plate, an infrared emitter and an infrared receiver are arranged in the bottom plate, and two symmetrical gradient blocks are arranged between the infrared emitter and the infrared receiver;

the box body is also provided with a fire-fighting joint and an explosion-proof ventilation valve.

Preferably, the bottom of the box body is provided with a cooling loop, one end of the cooling loop is provided with a water inlet, the other end of the cooling loop is provided with a water outlet, a first sealing pad is arranged above the cooling loop, a heat conducting pad is arranged above the first sealing pad, and a plurality of insulating sheets are arranged on the heat conducting pad.

Preferably, a plurality of fireproof plates are arranged above the battery module, a buffer pad is arranged between each fireproof plate, a second sealing pad is arranged above the buffer pad, and an anti-spraying panel is arranged on the second sealing pad.

Preferably, the top surface of box is equipped with the case lid, the side of box is equipped with maintenance panel and electrical installation face, be equipped with BMS subassembly in the maintenance panel.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure and novel design, utilizes reasonable mechanical structure, skillfully exerts the inherent potential of each element, and detects the smoke condition in the battery box at any time by arranging the smoke detector in the liquid cooling battery box, and when abnormality occurs, the smoke detector can immediately give an alarm, so that staff can take fire-fighting measures through the fire-fighting connector in time, and the occurrence of safety accidents is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a schematic diagram of a cooling circuit structure according to the present utility model;

FIG. 4 is a schematic diagram of a smoke detector according to the present utility model;

FIG. 5 is a schematic diagram of the internal structure of the smoke detector according to the present utility model;

FIG. 6 is a schematic view of the structure of the smoke inlet device in the utility model;

FIG. 7 is a schematic view of the internal structure of the smoke inlet device in the utility model;

FIG. 8 is a schematic view of a base plate structure according to the present utility model;

fig. 9 is a schematic view of the internal structure of the base plate in the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-9, the present utility model provides a technical solution: the liquid cooling battery box comprises a box body 1, wherein a battery module 2 is arranged in the box body 1, a first fixing frame 11 is arranged at the front end of the battery module 2, a second fixing frame 12 is arranged at the rear end of the battery module 2, and the first fixing frame 11 and the second fixing frame 12 are used for limiting the transverse movement between the battery modules 16;

the smoke detector 3 is arranged on the first fixing frame 11, the smoke detector 3 comprises a panel 31, a smoke inlet 32 is arranged on the panel 31, a circuit board 33 is arranged in the panel 31, an LED indicator patch 34 is arranged at the upper end of the circuit board 33, a smoke inlet 35 is also arranged on the circuit board 33, the side surface of the smoke inlet 35 is hollow, a plurality of refraction-shaped reflecting plates 351 are arranged in the smoke inlet 35, a hole 352 is formed in the bottom of the smoke inlet 35, a bottom plate 36 is connected to the bottom of the smoke inlet 35, an infrared emitter 361 and an infrared receiver 362 are arranged in the bottom plate 36, two symmetrical gradient blocks 363 are arranged between the infrared emitter 361 and the infrared receiver 362, and the gradient blocks 363 can ensure that the infrared receiver 362 cannot receive infrared light emitted by the infrared emitter 361 under the condition of no smoke;

the smoke particles enter the smoke inlet 35 from the smoke inlet 32, diffuse reflection is generated in the plurality of the refraction-reflection plates 351, then enter the bottom plate 36, are received by the infrared receiver 362, and when the smoke detector 3 detects that the concentration of the gas in the box reaches a threshold value, the infrared receiver 362 transmits a signal to the circuit board 33, outputs an alarm through the LED indicator light patch 34 and transmits the alarm to the terminal;

the fire-fighting connector 37 and the explosion-proof ventilation valve 38 are further arranged on the box body 1, the fire-fighting connector 37 is used for being externally connected with a fire-fighting system so as to take fire-fighting measures in time, and the explosion-proof ventilation valve 38 can ensure the pressure release function of the battery box when the internal pressure and the external pressure are balanced and the internal pressure is increased suddenly.

In this embodiment, the bottom of the case 1 is provided with the cooling circuit 4, one end of the cooling circuit 4 is provided with the water inlet 41, and the other end is provided with the water outlet 42, and each battery in the battery module 2 is cooled by the cooling circuit 4, so that the temperature uniformity of the battery case is improved, the operation safety of the battery is ensured, and the cycle life of the battery system is prolonged;

a first sealing pad 5 is arranged above the cooling loop 4, a heat conducting pad 51 is arranged above the first sealing pad 5, and the heat conducting pad 51 is a heat conducting gel or a heat conducting silica gel pad; the heat conducting pad 51 is provided with a plurality of insulating sheets 52, and the insulating sheets 52 are used for supporting the battery module 2.

In this embodiment, a plurality of fireproof plates 21 are disposed above the battery module 2, a cushion pad 22 is disposed between each of the fireproof plates 21, a second sealing pad 6 is disposed above the cushion pad 22, an anti-spraying panel 61 is disposed on the second sealing pad 6, and heat diffusion during out-of-control battery operation can be ensured by the fireproof plates 21 and the anti-spraying panel 61.

The first sealing gasket 5 and the second sealing gasket 6 are connected through bolts.

In this embodiment, the top surface of box 1 is equipped with case lid 7, the side of box 1 is equipped with maintenance panel 8 and electrical installation face 9, be equipped with BMS subassembly 81 in the maintenance panel 8, electrical installation face 9 is slightly higher than the front plane, guarantees the arrangement space of battery box output cable, when need maintain, debug battery module, removable maintenance panel 8 to the staff's operation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid cooling battery box, includes box (1), its characterized in that: the battery box is characterized in that the battery module (2) is arranged in the box body (1), a first fixing frame (11) is arranged at the front end of the battery module (2), and a second fixing frame (12) is arranged at the rear end of the battery module;

the smoke detector (3) is arranged on the first fixing frame (11), the smoke detector (3) comprises a panel (31), a smoke inlet (32) is arranged on the panel (31), a circuit board (33) is arranged in the panel (31), an LED indicator light patch (34) is arranged at the upper end of the circuit board (33), a smoke inlet (35) is further arranged on the circuit board (33), the side face of the smoke inlet (35) is hollow, a plurality of refraction-shaped reflecting plates (351) are arranged in the smoke inlet (35), holes (352) are formed in the bottom of the smoke inlet (35), a bottom plate (36) is connected to the bottom of the smoke inlet (35), an infrared emitter (361) and an infrared receiver (362) are arranged in the bottom plate (36), and two symmetrical gradient blocks (363) are arranged between the infrared emitter (361) and the infrared receiver (362);

the box body (1) is also provided with a fire-fighting joint (37) and an explosion-proof ventilation valve (38).

2. The liquid-cooled battery box of claim 1, wherein: the cooling device is characterized in that a cooling loop (4) is arranged at the bottom of the box body (1), a water inlet (41) is formed in one end of the cooling loop (4), a water outlet (42) is formed in the other end of the cooling loop, a first sealing pad (5) is arranged above the cooling loop (4), a heat conducting pad (51) is arranged above the first sealing pad (5), and a plurality of insulating sheets (52) are arranged on the heat conducting pad (51).

3. The liquid-cooled battery box of claim 1, wherein: the battery module (2) top is equipped with a plurality of PLASTIC LAMINATED (21), every all be equipped with blotter (22) between PLASTIC LAMINATED (21), blotter (22) top is equipped with second sealed pad (6), be equipped with on the second sealed pad (6) and prevent spouting panel (61).

4. The liquid-cooled battery box of claim 1, wherein: the top surface of box (1) is equipped with case lid (7), the side of box (1) is equipped with maintenance panel (8) and electrical installation face (9), be equipped with BMS subassembly (81) in maintenance panel (8).