Mining liquid cooling contact type explosion-proof lithium ion storage battery power supply

Abstract

The utility model discloses a mining liquid cooling contact type anti-explosion lithium ion storage battery power supply which is composed of a battery bin, an electrical bin, a wiring bin, a display screen bin, a plurality of switches and a plurality of connector assemblies. The battery compartment is an explosion-proof compartment body for installing a battery monomer, a liquid cooling flow channel for circulating liquid to flow is designed on a metal plate at the bottom of the battery compartment, the bottom of the battery monomer can be adhered to the metal plate at the bottom of the battery compartment through insulation heat dissipation silica gel, and the aluminum shell of the battery monomer is in contact with two metal surfaces of the metal plate at the bottom of the battery compartment, so that the battery monomer can be sealed. And a large amount of heat energy generated by the single batteries is directly transferred to the metal plate at the bottom of the battery compartment, and the heat is taken away through the liquid cooling flow channel in the metal plate, so that the aim of cooling by liquid cooling is fulfilled. The mining liquid cooling contact type explosion-proof lithium ion storage battery power supply is good in cooling and heat dissipation effect, simple in using method, economical and practical.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof lithium-ion battery power supplies for mining, in particular to a liquid-cooled contact-type explosion-proof lithium-ion battery power supply for mining, and particularly to a liquid-cooled contact-type explosion-proof battery pack box. Background Art

[0002] Mining explosion-proof batteries are equipment specially designed to provide power for explosion-proof electrical equipment in places such as coal mines and mines where gas or other explosive gases exist. With the advancement of industrial automation, the market for mining explosion-proof electrical equipment continues to grow. In particular, the development of mining explosion-proof lithium batteries has shown a steady growth trend, and their high energy density, long life, intelligence, energy saving and environmental protection have become new hot spots in the market. However, lithium batteries often cause excessive temperatures due to untimely heat dissipation, which reduces battery performance and shortens life, which is the main reason affecting battery use. The coal industry standard "MTT 1200-2023 Safety Technical Requirements for Mining Explosion-proof Lithium-ion Battery Power Sources" stipulates that during normal charging and discharging, the maximum temperature of lithium-ion batteries should not exceed 60°

[0003] Conventional heat dissipation solutions involve cooling heated lithium battery packs through air circulation. This has been widely used in early battery thermal management designs due to its low cost, simple structure, and easy maintenance. However, due to the low specific heat capacity of air, air cooling is difficult to handle large amounts of heat, and its application has certain limitations. Since the density of the cooling medium in liquid cooling is much greater than that of air, the quality of the liquid cooling heat dissipation structure is much higher than that of the air cooling structure. Although there are many explosion-proof lithium battery liquid cooling solutions on the market, a closer look reveals that the design of the liquid cooling system inside the battery cavity still uses air for indirect heat dissipation. Although this facilitates the design of the internal space of the battery compartment, it does not fully utilize the liquid cooling system.

[0004] Chinese patent application number CN202410714460.4 discloses a power management system for lithium-ion batteries used in mining. The system includes a data acquisition module, a safe operation module, a loss prediction module, a calibration analysis module, and an analysis and processing module. The data acquisition module acquires data about the lithium-ion batteries used in mining during use. Key technical features include: the safe operation module compares and determines directly acquired data from the lithium-ion batteries, determines whether the batteries are in an abnormal state, and implements appropriate policies when such data is in an abnormal state. Furthermore, the loss prediction module, the calibration analysis module, and the analysis and processing module further analyze the batteries, calculating their service life and remaining operating time. This helps managers develop more optimized operating plans, ensuring full utilization of equipment and lithium-ion batteries, and achieving optimal results. However, this technical solution does not provide a specific design for the internal space of the battery compartment or a heat dissipation structure, and therefore requires further research and development. Utility Model Content

[0005] In order to give full play to the advantages of liquid cooling and benefit from its good heat dissipation characteristics, the utility model provides a liquid-cooled contact explosion-proof lithium-ion battery power supply for mining. It is a liquid-cooled contact explosion-proof lithium-ion battery power supply product with good cooling and heat dissipation effects, simple usage, and economical and practical. It directly contacts the liquid cooling structure through the aluminum shell of the lithium battery cell to achieve the purpose of metal surface contact heat dissipation, greatly improving the heat dissipation effect.

[0006] A liquid-cooled contact-type explosion-proof lithium-ion battery power supply for mining, comprising the following steps:

[0007] A battery compartment, wherein the battery compartment is provided with battery cells and a liquid cooling channel for circulating liquid, and the battery compartment is designed with a pressure relief valve and a manual isolation switch;

[0008] An electrical compartment electrically connected to the battery compartment via a first explosion-proof wall-penetrating terminal;

[0009] A wiring compartment, the wiring compartment being electrically connected to the electrical compartment via a second explosion-proof wall-penetrating terminal;

[0010] The display screen compartment is electrically connected to the wiring compartment via a third explosion-proof wall-penetrating terminal.

[0011] Further preferably, a metal plate is provided in the battery compartment, and the liquid cooling channel is installed in the metal plate.

[0012] Further preferably, the liquid cooling channel includes:

[0013] a water inlet channel mounted on one side of the metal plate;

[0014] a water outlet channel mounted on the other side of the metal plate;

[0015] A plurality of liquid-cooling single-flow channel units are arranged between the water inlet flow channel and the water outlet flow channel.

[0016] The water inlet channel is provided with a plurality of single-channel water inlets, and the water outlet channel is provided with a plurality of single-channel water outlets.

[0017] One end of the liquid-cooled single-channel unit is communicated with the single-channel water inlet of the water inlet channel, and the other end of the liquid-cooled single-channel unit is communicated with the single-channel water outlet of the water outlet channel.

[0018] The liquid-cooled single-channel unit includes a plurality of single-channel U-shaped tubes connected end to end, wherein the head end is connected to the single-channel water inlet of the water inlet channel, and the tail end is connected to the single-channel water outlet of the water outlet channel.

[0019] The water inlet channel is connected to a circulating water pump.

[0020] The diameter of the water outlet channel is larger than the diameter of the water inlet channel.

[0021] The battery cells are adhered to the metal plate via insulating heat-dissipating silica gel.

[0022] The display screen compartment is equipped with a display screen.

[0023] In the present utility model, the battery compartment is an explosion-proof compartment body for installing battery cells. The bottom metal plate thereof is designed with a liquid cooling channel for circulating liquid. The bottom of the battery cell can be adhered to the bottom metal plate of the battery compartment through insulating heat-dissipating silicone. Heat is conducted through the contact between the two metal surfaces of the aluminum shell of the battery cell and the metal plate at the bottom of the battery compartment. The large amount of heat energy generated by the battery cell is directly transferred to the metal plate at the bottom of the battery compartment, and the heat is taken away by the liquid cooling channel inside the metal plate, thereby achieving the purpose of liquid cooling and heat dissipation.

[0024] Specifically, the product of the utility model consists of a battery compartment, an electrical compartment, a wiring compartment, a display screen compartment and a number of switches and connector components. The battery compartment is an explosion-proof compartment for installing battery cells. The battery cells are placed in this compartment, so the heat generated is also concentrated in the compartment. The battery compartment is also designed with two pressure relief valves and a manual isolation switch. The electrical compartment is a compartment for installing the battery control panel, which is designed with two control buttons. The display screen compartment is installed with a display screen. The wiring compartment is a compartment for pure electrical wiring, which is designed with an explosion-proof emergency stop button, 2 explosion-proof glands for power supply lines and 4 explosion-proof glands for signal lines. An explosion-proof through-wall terminal is designed between the battery compartment and the electrical compartment, and explosion-proof through-wall terminals are designed between the electrical compartment and the wiring compartment and the display compartment. Lifting blocks are designed on the left and right sides of the entire machine casing.

[0025] The bottom metal plate of the battery compartment is designed with a liquid cooling channel for circulating liquid flow. The liquid cooling channel pipeline is designed with an inlet channel, an outlet channel, and several single-channel U-shaped tubes connecting the two. The water inlet of the inlet channel is connected to the circulating water pump to provide power for the circulating water. The outlet of the outlet channel is connected to the outlet pipe. The diameter of the outlet channel is larger than that of the inlet channel, so that the pressure at each single-channel inlet is greater than the pressure at the outlet, promoting the rapid flow of liquid in the entire circulation system and improving the heat dissipation performance. The combination design of multiple groups of single-channel U-shaped tubes makes the heat dissipation of the entire heat sink uniform and the heat dissipation effect significant.

[0026] The bottom of the battery cell can be adhered to the bottom metal plate of the battery compartment through insulating heat-dissipating silicone. Heat is conducted through the contact between the two metal surfaces of the battery cell aluminum shell and the metal plate at the bottom of the battery compartment, directly transferring the large amount of heat energy generated by the battery cell to the metal plate at the bottom of the battery compartment, and the heat is taken away through the liquid cooling flow channel inside the metal plate, thereby achieving the purpose of liquid cooling and cooling.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] In the utility model, compared with non-contact liquid cooling, this heat dissipation mode has the advantages of significant heat dissipation and cooling effect, simple structure and easy maintenance. At the same time, there is no heat sink design in the battery compartment, which does not occupy the space of the battery compartment and is convenient for the arbitrary combination of battery cells in the battery compartment, which is a guarantee for the best performance of explosion-proof lithium battery products.

[0029] The utility model is a liquid-cooled contact explosion-proof lithium-ion battery power supply for mining, which has good cooling and heat dissipation effects, is simple to use, and is economical and practical. The aluminum shell of the lithium battery cell is in direct contact with the liquid cooling structure to achieve the purpose of metal surface contact heat dissipation, greatly improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the main view of a liquid-cooled contact-type explosion-proof lithium-ion battery power supply for mining;

[0031] Figure 2 The utility model is a cross-sectional view of the liquid cooling flow channel of the bottom metal plate of a liquid-cooled contact-type explosion-proof lithium-ion battery power supply for mining. DETAILED DESCRIPTION

[0032] like Figure 1 and Figure 2 As shown, a liquid-cooled, contact-type, explosion-proof lithium-ion battery power supply for mining consists of a battery compartment 1, an electrical compartment 2, a wiring compartment 3, a display compartment 4, and several switches and connector components. The battery compartment 1 houses the explosion-proof battery cells 5, which are housed in an aluminum casing. Heat generated by these cells is thus concentrated within the compartment. The battery compartment 1 is also equipped with two pressure relief valves 6 and a manual isolating switch 7. The electrical compartment 2 houses the battery control panel and is equipped with two control buttons 8. The display compartment 4 houses a display screen 9. The wiring compartment 3 is a compartment for purely electrical wiring and is equipped with an explosion-proof emergency stop button 23, an explosion-proof cable gland 10 for the power supply line, and an explosion-proof cable gland 11 for the signal line. An explosion-proof wall-through terminal 12 is installed between the battery compartment 1 and the electrical compartment 2, and between the electrical compartment 2, the wiring compartment 3, and the display compartment 4. Lifting blocks 13 are installed on both sides of the housing.

[0033] The bottom metal plate 19 of the battery compartment 1 is designed with a liquid cooling channel 14 for circulating liquid. The liquid cooling channel pipeline is designed with an inlet channel 15, an outlet channel 16 and several single-channel U-shaped tubes 17 connected therebetween. The water inlet 18 of the inlet channel is connected to the circulating water pump to provide power for the circulating water. The outlet 22 of the outlet channel is connected to the outlet pipe. The diameter of the outlet channel 16 is larger than that of the inlet channel 15, so that the pressure at each single-channel inlet 20 is greater than the pressure at the outlet 21, promoting the rapid flow of liquid in the entire circulation system and improving the heat dissipation performance. The combination design of multiple groups of single-channel U-shaped tubes 17 makes the heat dissipation of the entire heat sink uniform and the heat dissipation effect significant.

[0034] The bottom of the battery cell 5 can be adhered to the bottom metal plate 19 of the battery compartment 1 through insulating heat-dissipating silicone. Heat is conducted through the contact between the two metal surfaces of the aluminum shell of the battery cell 5 and the metal plate 19 at the bottom of the battery compartment, and the large amount of heat energy generated by the battery cell 5 is directly transferred to the metal plate 19 at the bottom of the battery compartment. The heat is taken away through the liquid cooling channel 14 inside the metal plate 19, thereby achieving the purpose of liquid cooling and heat dissipation.

[0035] The utility model is a liquid-cooled contact explosion-proof lithium-ion battery power supply for mining, which has good cooling and heat dissipation effects, is simple to use, and is economical and practical. The aluminum shell of the lithium battery cell is in direct contact with the liquid cooling structure to achieve the purpose of metal surface contact heat dissipation, greatly improving the heat dissipation effect.

Claims

1. A liquid-cooled contact explosion-proof lithium-ion battery power supply for mining, characterized in that: The following steps are involved: A battery compartment, wherein the battery compartment is provided with battery cells and a liquid cooling channel for circulating liquid, and the battery compartment is designed with a pressure relief valve and a manual isolation switch; An electrical compartment electrically connected to the battery compartment via a first explosion-proof wall-penetrating terminal; A wiring compartment, the wiring compartment being electrically connected to the electrical compartment via a second explosion-proof wall-penetrating terminal; The display screen compartment is electrically connected to the wiring compartment via a third explosion-proof wall-penetrating terminal.

2. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 1, characterized in that: A metal plate is provided in the battery compartment, and the liquid cooling channel is installed in the metal plate.

3. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 2, characterized in that: The liquid cooling channel includes: a water inlet channel mounted on one side of the metal plate; a water outlet channel mounted on the other side of the metal plate; A plurality of liquid-cooling single-flow channel units are arranged between the water inlet flow channel and the water outlet flow channel.

4. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 3, characterized in that: The water inlet channel is provided with a plurality of single-channel water inlets, and the water outlet channel is provided with a plurality of single-channel water outlets.

5. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 4, characterized in that: One end of the liquid-cooled single-channel unit is communicated with the single-channel water inlet of the water inlet channel, and the other end of the liquid-cooled single-channel unit is communicated with the single-channel water outlet of the water outlet channel.

6. The mining liquid-cooled contact explosion-proof lithium-ion battery power source according to claim 5, characterized in that: The liquid-cooled single-channel unit includes a plurality of single-channel U-shaped tubes connected end to end, wherein the head end is connected to the single-channel water inlet of the water inlet channel, and the tail end is connected to the single-channel water outlet of the water outlet channel.

7. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 3, characterized in that: The water inlet channel is connected to a circulating water pump.

8. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 3, characterized in that: The diameter of the water outlet channel is larger than the diameter of the water inlet channel.

9. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 2, characterized in that: The battery cells are adhered to the metal plate via insulating heat-dissipating silica gel.

10. The liquid-cooled contact explosion-proof lithium-ion battery power source for mining according to claim 1, characterized in that: The display screen compartment is equipped with a display screen.

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