A heating system for cold-heat type lithium battery aging room

Abstract

The utility model provides a cold and hot type lithium cell aging room heating system, it includes the case and is located on the new air port, the air outlet, the return air port and the air inlet of case, be equipped with evaporimeter between the new air port and the air outlet, the return air port and the air inlet are connected with the air outlet and the air inlet of aging room respectively, and be equipped with condenser between the return air port and the air inlet, be equipped with compressor between the evaporimeter and condenser, and form refrigerant circulation channel among the evaporimeter, condenser and compressor three. The utility model discloses through the design refrigerant circulation channel, through the evaporimeter absorption workshop high temperature wind heat, releases heat energy by condenser to the aging room after the pressure increase of compressor, forms closed loop refrigerant circulation, reduces the energy consumption needed in aging, can also improve the workshop working environment, reduces the workshop environment temperature, also reduces the energy consumption of air conditioning refrigeration.

Description

Technical Field

[0001] This utility model relates to the field of aging processing technology, and in particular to a heating system for a cold and hot lithium battery aging chamber. Background Technology

[0002] The hot-cold lithium battery aging chamber is a large-scale walk-in experimental device specifically designed to simulate extreme temperature environments (high temperature, low temperature, and alternating temperature and humidity conditions) and accelerate the performance degradation test of lithium batteries.

[0003] Currently, the air circulation in the hot and cold lithium battery aging chamber is mainly achieved through the air outlet and air inlet ducts set on both sides of the inner wall of the aging chamber. The hot air is heated by electric auxiliary heating and then sent into the aging chamber by a fan. After aging, the air is exhausted outside the aging chamber by an exhaust fan. The traditional method of heating the air by electric auxiliary heating has problems such as high starting power, large impact on transformer capacitors, and inaccurate temperature control. In addition, the energy consumption is particularly high. Furthermore, since workers work close to the workshop and the temperature is high, installing air conditioning would increase costs and is not economical. Utility Model Content

[0004] The purpose of this invention is to provide a heating system for a cold-heating lithium battery aging chamber, which can effectively recover and reuse the heat energy of the outdoor environment by designing a refrigerant circulation channel, thereby reducing production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heating system for a lithium battery aging chamber, comprising a chassis and a fresh air inlet, an exhaust air inlet, a return air inlet, and a supply air outlet mounted on the chassis. An evaporator is provided between the fresh air inlet and the exhaust air inlet. The return air inlet and the supply air outlet are respectively connected to the air outlet and the air inlet of the aging chamber. A condenser is provided between the return air inlet and the supply air outlet. A compressor is provided between the evaporator and the condenser, and a refrigerant circulation channel is formed among the evaporator, the condenser, and the compressor.

[0007] Further configuration: The refrigerant circulation channel is provided with a liquid storage tank connected to the condenser and the evaporator respectively. The refrigerant in the liquid storage tank absorbs heat at the evaporator and is compressed by the compressor to form a high temperature and high pressure gaseous state. The liquid storage tank is also used to receive the refrigerant that releases heat at the condenser and is in a liquid state.

[0008] Further configuration: A gas-liquid separator is provided between the compressor and the evaporator.

[0009] Further configuration: The evaporator is connected to a condensate drain pipe.

[0010] Further configuration: An evaporator fan is provided between the fresh air inlet and the exhaust outlet, and the evaporator fan is used to form a directional airflow through the evaporator between the fresh air inlet and the exhaust outlet.

[0011] Further feature: A filter screen is installed at the fresh air inlet.

[0012] Further configuration: A supply air fan is provided between the return air inlet and the supply air inlet, and the supply air fan is used to form a directional airflow through the condenser between the return air inlet and the supply air inlet.

[0013] Further configuration: The condenser is inclined relative to the return air vent.

[0014] Further features: The chassis is equipped with an electrical control box, and a control panel electrically connected to the electrical control box is provided on the surface of the chassis, and a heat dissipation vent is provided near the electrical control box in the chassis.

[0015] Further feature: The bottom of the chassis is equipped with support legs.

[0016] Compared with the prior art, the solution of this utility model has the following advantages:

[0017] 1. In the heating system of the cold and hot lithium battery aging chamber involved in this utility model, a refrigerant circulation channel is designed. The evaporator absorbs the heat from the high temperature air in the workshop, and after being pressurized by the compressor, the heat energy is released to the aging chamber by the condenser, forming a closed-loop refrigerant circulation and realizing dual energy saving through energy recycling. The evaporator absorbs the heat from the workshop environment, and after being pressurized by the compressor, the condenser provides a stable heat source for the cold and hot lithium battery aging chamber. While recovering heat, the heating system of this utility model can simultaneously generate corresponding cooling capacity to be fed back to the workshop, improving the workshop working environment, reducing the workshop ambient temperature, and reducing the energy consumption of air conditioning.

[0018] 2. In the heating system of the cold and hot lithium battery aging chamber involved in this utility model, the heat dissipation vent set in the chassis near the electrical control box can efficiently dissipate the heat generated by the electrical control components, prevent equipment failure caused by overheating, and optimize the airflow circulation inside the chassis to ensure the stable operation of the overall system.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the heating system for the cold-heat type lithium battery aging chamber of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the heating system for the cold and hot lithium battery aging chamber of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal electrical control box of the heating system for the cold and hot lithium battery aging chamber of this utility model.

[0024] Figure 4 This is a schematic diagram of the internal structure of the compressor in the heating system of the cold-heat type lithium battery aging chamber of this utility model.

[0025] In the diagram, 1. Chassis; 11. Fresh air inlet; 12. Exhaust air outlet; 13. Return air inlet; 14. Supply air outlet; 15. Heat dissipation outlet; 2. Evaporator; 21. Condensate drain pipe; 3. Evaporator fan; 4. Condenser; 5. Supply air fan; 6. Compressor; 7. Gas-liquid separator; 8. Electrical control box; 81. Control panel; 9. Support leg. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in this specification means the presence of the described features, parts, and / or components, but does not exclude implementation as other features, parts, components, and / or combinations thereof supported by this art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0028] In the description of this utility model, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] Please see Figures 1 to 4 This utility model relates to a heating system for a cold and hot lithium battery aging chamber, which can achieve dual energy saving by recovering heat from the workshop environment. It can convert the heat in the workshop environment into energy consumption for aging work, reducing cost investment, and can also regulate the temperature in the workshop, improve the workshop working environment, and reduce the energy consumption of air conditioning.

[0033] The heating system of the cold and hot lithium battery aging chamber of this utility model includes a chassis 1 and a fresh air inlet 11, an exhaust air outlet 12, a return air outlet 13, and a supply air outlet 14 provided on the chassis 1. The fresh air inlet 11 and the exhaust air outlet 12 are connected to the external workshop space of the chassis 1. An evaporator 2 is provided between the fresh air inlet 11 and the exhaust air outlet 12. The return air outlet 13 and the supply air outlet 14 are respectively connected to the air outlet and the air inlet of the cold and hot lithium battery aging chamber. A condenser 4 is provided between the return air outlet 13 and the supply air outlet 14. A compressor 6 is provided between the evaporator 2 and the condenser 4, and a refrigerant circulation channel is formed between the evaporator 2, the condenser 4, and the compressor 6.

[0034] Specifically, the evaporator 2 is used to absorb heat from the indoor air entering the casing 1 from the fresh air inlet 11. An evaporator fan 3 is provided between the fresh air inlet 11 and the exhaust vent 12. The evaporator fan 3 can make the indoor air entering the casing 1 from the fresh air inlet 11 form a directional airflow through the evaporator 2. At this time, the cold air after absorbing heat through the evaporator 2 enters the workshop from the exhaust vent 12, effectively reducing the workshop temperature, improving the workshop working environment, and reducing the energy consumption of air conditioning.

[0035] In addition, a condensate drain pipe 21 is connected to the evaporator 2 to drain the condensate, which can prevent condensate from accumulating inside the casing 1 and avoid moisture accumulation that could lead to rust, corrosion or equipment failure.

[0036] The condenser 4 uses the heat absorbed by the evaporator 2 to heat the return air discharged from the hot and cold lithium battery aging chamber. A supply air fan 5 is provided between the return air inlet 13 and the supply air outlet 14. The supply air fan 5 is used to form a directional airflow through the condenser 4 between the return air inlet 13 and the supply air outlet 14, so that the return air of the aging chamber passes through the condenser 4 for heating.

[0037] This invention utilizes a refrigerant circulation channel formed between the evaporator 2, condenser 4, and compressor 6 to transfer heat through changes in the refrigerant's state. Specifically, the refrigerant circulation channel is equipped with a liquid storage tank connected to both the condenser 4 and the evaporator 2. The liquid storage tank stores the refrigerant. High-temperature indoor air from the workshop enters the casing 1 under the power of the evaporator fan 3. As the high-temperature indoor air passes through the evaporator 2, the liquid refrigerant in the liquid storage tank absorbs heat from the air. The refrigerant then enters the compressor 6, which further compresses the heat-absorbing refrigerant into a high-temperature, high-pressure gaseous state. This gaseous refrigerant is then sent to the condenser 4, where it releases heat to heat the return air of the aging chamber. After releasing heat, the refrigerant returns to a liquid state and goes back to the liquid storage tank, ready to re-enter the evaporator 2 for circulation. This invention utilizes refrigerant circulation to recover and reuse heat from the workshop in the aging chamber, significantly reducing energy consumption and lowering costs. Simultaneously, the high-temperature indoor air, cooled by heat absorption, becomes cold air and is returned to the workshop by the evaporator fan 3 to further cool the workshop space and improve the environment. In other words, this invention's heating system for a hot-cold lithium battery aging chamber enables bidirectional environmental control between the workshop and the aging chamber, recovering and reusing heat from the external environment and reducing heat input.

[0038] Furthermore, a gas-liquid separator 7 is provided between the compressor 6 and the evaporator 2. The gas-liquid separator 7 uses centrifugal force to separate the liquid refrigerant in the vaporized refrigerant, which can prevent the liquid refrigerant from directly entering the compressor 6 and causing damage to the compressor 6, thus ensuring system safety and efficiency.

[0039] In addition, the condenser 4 in this embodiment is inclined relative to the return air vent 13. The inclined design can save the vertical and horizontal space occupied by the condenser 4. At the same time, the inclined arrangement is conducive to natural or forced convection of airflow, which enhances the heat exchange effect.

[0040] The casing 1 of this utility model also houses an electrical control box 8, which is used to control the start-up, shutdown, and operation of the aforementioned equipment such as the evaporator 2, condenser 4, compressor 6, gas-liquid separator 7, and fan. An operation panel for easy worker control is also provided on the surface of the casing 1. A heat dissipation vent 15 is also provided near the electrical control box 8 in the casing 1. The heat dissipation vent 15 can efficiently dissipate the heat generated by the electrical control components, preventing equipment failure due to overheating, and simultaneously optimizing the airflow circulation inside the casing 1 to ensure stable operation of the overall system.

[0041] The bottom of the chassis 1 is also equipped with support legs 9. The support legs 9 support the bottom of the chassis 1 away from the ground, which makes it easy for a forklift to insert into the bottom of the chassis 1 to lift the chassis 1 for transportation, and also facilitates heat dissipation at the bottom of the chassis 1.

[0042] In summary, the heating system of this utility model for a hot-and-cold lithium battery aging chamber is designed with a refrigerant circulation channel. The evaporator 2 absorbs heat from the high-temperature air in the workshop, which is then pressurized by the compressor 6 and released into the return air of the hot-and-cold lithium battery aging chamber by the condenser 4, forming a closed-loop refrigerant circulation and achieving dual energy-saving benefits through energy recycling. The evaporator absorbs heat from the workshop environment, which is then pressurized by the compressor and provided by the condenser as a stable heat source for the hot-and-cold lithium battery aging chamber. While recovering heat, this heating system simultaneously generates corresponding cooling capacity to be fed back into the workshop, improving the working environment, reducing the ambient temperature, and decreasing the energy consumption of air conditioning. Therefore, this hot-and-cold lithium battery aging chamber heating system can simulate a high-temperature environment in the aging chamber, facilitating cyclic charge-discharge testing of lithium batteries to fully complete the battery aging process.

[0043] The above description is only a partial embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heating system for a cold-heating lithium battery aging chamber, characterized in that, It includes a chassis (1) and a fresh air inlet (11), an exhaust air outlet (12), a return air outlet (13) and a supply air outlet (14) provided on the chassis (1). An evaporator (2) is provided between the fresh air inlet (11) and the exhaust air outlet (12). The return air outlet (13) and the supply air outlet (14) are respectively connected to the air outlet and the air inlet of the aging chamber. A condenser (4) is provided between the return air outlet (13) and the supply air outlet (14). A compressor (6) is provided between the evaporator (2) and the condenser (4). A refrigerant circulation channel is formed between the evaporator (2), the condenser (4) and the compressor (6).

2. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, The refrigerant circulation channel is provided with a liquid storage tank connected to the condenser (4) and the evaporator (2) respectively. The refrigerant in the liquid storage tank absorbs heat at the evaporator (2) and is compressed by the compressor (6) to form a high temperature and high pressure gaseous state. The liquid storage tank is also used to receive the refrigerant that releases heat at the condenser (4) and is in a liquid state.

3. The heating system for a cold-and-hot lithium battery aging chamber according to claim 2, characterized in that, A gas-liquid separator (7) is provided between the compressor (6) and the evaporator (2).

4. The heating system for a cold-and-hot lithium battery aging chamber according to claim 2, characterized in that, The evaporator (2) is connected to a condensate drain pipe (21).

5. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, An evaporator fan (3) is provided between the fresh air inlet (11) and the exhaust outlet (12). The evaporator fan (3) is used to form a directional airflow through the evaporator (2) between the fresh air inlet (11) and the exhaust outlet (12).

6. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, A filter screen is installed at the fresh air inlet (11).

7. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, A blower (5) is provided between the return air inlet (13) and the supply air inlet (14), and the blower (5) is used to form a directional airflow through the condenser (4) between the return air inlet (13) and the supply air inlet (14).

8. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1 or 6, characterized in that, The condenser (4) is inclined relative to the return air inlet (13).

9. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, The chassis (1) is provided with an electrical control box (8), and a control panel (81) electrically connected to the electrical control box (8) is provided on the surface of the chassis (1), and a heat dissipation vent (15) is provided near the electrical control box (8) of the chassis (1).

10. The heating system for a cold-and-hot lithium battery aging chamber according to claim 1, characterized in that, The bottom of the chassis (1) is provided with support legs (9).

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