A split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment

Abstract

A split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment includes: a bottom-layer air duct, including at least one bottom-layer direct exhaust duct, the bottom air inlet of the bottom-layer direct exhaust duct is connected to the exhaust port of the bottom-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment; a middle-layer air duct, including at least one middle-layer direct exhaust duct, the bottom air inlet of the middle-layer direct exhaust duct is connected to the exhaust port of the corresponding middle-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment; and a top-layer air duct is arranged at the exhaust port of the top-layer equipment, and an air inlet is arranged on the air duct wall, and an exhaust port that can be connected to the inner cavity is arranged on the top. The beneficial effect of the present invention is that the hot air is discharged from the driving box of each layer of soft-pack lithium battery capacity division equipment, and then the hot air is sent to the top exhaust port of the third-layer equipment by each layer of air duct respectively, and the air ducts do not interfere with each other and exhaust independently, avoiding the problem of hot air backflow.

Description

Technical Field

[0001] The invention relates to a split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment, belonging to the manufacturing field of lithium battery capacity division test equipment. Background Art

[0002] In the testing process of lithium batteries, capacity division is a very important process. Capacity division is to conduct several full-load charge and discharge cycles on the activated lithium battery to test the internal resistance and charge and discharge capacity of the lithium battery. First, it is used to eliminate batteries with quality problems (such as too low capacity, too large self-discharge, and too large internal resistance). Second, the batteries are grouped according to capacity and internal group to select batteries with similar performance to form a battery pack. During the capacity division test, the lithium battery itself will generate heat due to the internal chemical reaction. In addition, a large amount of heat will be generated during the operation of the test equipment. Therefore, during the operation of the lithium battery equipment, the heat inside the equipment needs to be discharged in time. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment, which has the advantages of simple structure and independent heat dissipation of each layer of soft-pack lithium battery capacity division equipment without mutual interference.

[0004] The present invention provides a split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment, which is characterized by comprising:

[0005] The bottom air duct includes at least one bottom direct exhaust duct, the bottom air inlet of the bottom direct exhaust duct is connected to the exhaust outlet of the bottom equipment, and the top air outlet is directly connected to the top of the top equipment, so as to discharge the hot air generated by the bottom equipment from the top of the top equipment;

[0006] The middle-layer air duct includes at least one middle straight exhaust duct, the bottom air inlet of the middle straight exhaust duct is connected to the exhaust port of the corresponding middle-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment, so as to discharge the hot air of the middle-layer equipment from the top of the top-layer equipment;

[0007] And a top-level air duct is arranged at the air outlet of the top-level equipment, an air inlet is arranged on the air duct wall, and an air outlet which can be communicated with the inner cavity is arranged on the top to discharge the hot air generated by the top-level equipment.

[0008] The main body of the bottom-level direct exhaust duct is a square hollow duct. A bottom-level wind collecting area is provided at the bottom air inlet of each bottom-level direct exhaust duct. The exhaust outlet of the bottom-level equipment is completely covered by the bottom-level wind collecting area, so that the hot air exhausted by the bottom-level equipment can be directly sent to the top of the top-level equipment after being discharged from the bottom-level wind collecting area.

[0009] There are two direct exhaust ducts on the bottom layer, and the air collecting area on the bottom layer is a right-angled triangular air collecting area. The two right-angled triangular air collecting areas completely cover the exhaust outlet of the equipment on the bottom layer; the top part of the direct exhaust duct on the bottom layer is arranged on both sides of the equipment on the top layer, so that the hot air from the equipment on the bottom layer is directly delivered to the top of the equipment on the top layer through the right-angled triangular air collecting area, and discharged from the left and right sides of the top of the equipment on the third layer.

[0010] The bottom layer equipment, at least one set of middle layer equipment and the top layer equipment are stacked together from bottom to top, and each set of middle layer equipment is equipped with a middle layer direct exhaust duct, the main body of the middle layer direct exhaust duct is a square hollow pipe, and a middle layer air collecting area is provided at the bottom air inlet of each middle layer direct exhaust duct; the exhaust outlet of the corresponding middle layer equipment is completely covered by the middle layer air collecting area, so that the hot air exhausted by the middle layer equipment is discharged from the middle layer air collecting area and then directly sent to the top of the top layer equipment.

[0011] The main body of the top-level exhaust duct is a square hollow duct, which is an independent space separated from the bottom-level air duct and the middle-level air duct. A vent is provided on the outer air duct wall of the top-level exhaust duct, and an exhaust port that can be connected to the inner cavity is provided on the top.

[0012] The middle-layer equipment is a set, so that a set of bottom-layer equipment, a set of middle-layer equipment and a set of top-layer equipment are stacked together from bottom to top to form a three-layer structure.

[0013] The bottom layer direct exhaust duct, the middle layer direct exhaust duct and the top layer direct exhaust duct are assembled together into a rectangular parallelepiped, wherein the two bottom layer direct exhaust ducts are arranged at the two opposite ends of the rectangular parallelepiped, and the middle layer direct exhaust duct and the top layer direct exhaust duct are located in the middle.

[0014] The beneficial effects of the present invention are as follows: each layer of soft-pack lithium battery capacity distribution equipment exhausts hot air from the driving box, and then the hot air is sent to the top exhaust port of the third layer equipment through the air duct of each layer respectively, and the three air ducts do not interfere with each other and exhaust air independently, thus avoiding the problem of hot air backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The main view of the split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment;

[0016] Figure 2 A top view of the split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment;

[0017] Figure 3 Left view of the split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment;

[0018] Figure 4 A front view of an independent air duct of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0019] Figure 5 A top view of an independent air duct of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0020] Figure 6 A left view of an independent air duct on one layer of the air duct system;

[0021] Figure 7 The main view of the second-layer independent air duct of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0022] Figure 8 A top view of the second-layer independent air duct of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0023] Fig. 9 The left view of the second-layer independent air duct of the air duct system;

[0024] Fig.10 The main view of the three-layer independent air ducts of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0025] Fig.11 A top view of the three-layer independent air ducts of the air duct system (the dotted arrows represent the direction of the hot air flow);

[0026] Fig.12 Left view of the three-layer independent air ducts of the air duct system. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings.

[0028] Refer to the attached figure:

[0029] Embodiment 1 The present invention provides a split independent air duct system for heat dissipation of a soft-pack lithium battery capacity division device, comprising:

[0030] The bottom air duct 1 includes at least one bottom direct exhaust duct, the bottom air inlet of the bottom direct exhaust duct is connected to the exhaust port of the bottom equipment 4, and the top air outlet is directly connected to the top of the top equipment, so as to discharge the hot air generated by the bottom equipment from the top of the top equipment;

[0031] The middle-layer air duct 2 includes at least one middle straight exhaust duct, the bottom air inlet of the middle straight exhaust duct is connected to the exhaust port of the corresponding middle-layer device 5, and the top air outlet is directly connected to the top of the top-layer device, so as to discharge the hot air of the middle-layer device from the top of the top-layer device;

[0032] And the top-level air duct 3 is arranged at the exhaust port of the top-level equipment, and an air inlet is provided on the air duct wall, and an exhaust port that can be connected to the inner cavity is provided on the top to discharge the hot air generated by the top-level equipment 6.

[0033] The main body of the bottom-level direct exhaust duct is a square hollow duct. A bottom-level wind collecting area 11 is provided at the bottom air inlet of each bottom-level direct exhaust duct. The exhaust outlet of the bottom-level equipment is completely covered by the bottom-level wind collecting area, so that the hot air exhausted from the bottom-level equipment can be directly sent to the top of the top-level equipment after being discharged from the bottom-level wind collecting area.

[0034] There are two direct exhaust ducts on the bottom layer, and the air collecting area on the bottom layer is a right-angled triangular air collecting area. The two right-angled triangular air collecting areas completely cover the exhaust outlet of the equipment on the bottom layer; the top part of the direct exhaust duct on the bottom layer is arranged on both sides of the equipment on the top layer, so that the hot air from the equipment on the bottom layer is directly delivered to the top of the equipment on the top layer through the right-angled triangular air collecting area, and discharged from the left and right sides of the top of the equipment on the third layer.

[0035] The bottom layer equipment 4, at least one set of middle layer equipment 5 and the top layer equipment 6 are stacked together from bottom to top, and each set of middle layer equipment is equipped with a middle layer direct exhaust duct, the main body of the middle layer direct exhaust duct is a square hollow pipe, and a middle layer air collecting area 21 is provided at the bottom air inlet of each middle layer direct exhaust duct; the exhaust outlet of the corresponding middle layer equipment is completely covered by the middle layer air collecting area, so that the hot air exhausted from the middle layer equipment is directly sent to the top of the top layer equipment after being discharged from the middle layer air collecting area.

[0036] The main body of the top-level exhaust duct is a square hollow duct, which is an independent space separated from the bottom-level air duct and the middle-level air duct. A vent 31 is provided on the outer air duct wall of the top-level exhaust duct, and an exhaust port that can communicate with the inner cavity is provided on the top.

[0037] The middle-layer equipment is a set, so that a set of bottom-layer equipment, a set of middle-layer equipment and a set of top-layer equipment are stacked together from bottom to top to form a three-layer structure.

[0038] The bottom layer direct exhaust duct, the middle layer direct exhaust duct and the top layer direct exhaust duct are assembled together into a rectangular parallelepiped, wherein the two bottom layer direct exhaust ducts are arranged at the two opposite ends of the rectangular parallelepiped, and the middle layer direct exhaust duct and the top layer direct exhaust duct are located in the middle.

[0039] Embodiment 2 A split independent air duct system for heat dissipation of a soft-pack lithium battery capacity division device according to the present invention comprises:

[0040] The bottom layer air duct 1 is the first layer air duct, which is used for exhausting the hot air from the bottom layer. It consists of two straight exhaust ducts, which go straight from the left and right sides of the exhaust port of the first layer equipment to the top of the third layer equipment, and then the hot air is discharged from the left and right sides of the top of the third layer equipment.

[0041] The middle-layer air duct 2 is the second-layer air duct, which is used for discharging the middle-layer hot air. It consists of a straight exhaust duct, which runs from the middle of the exhaust port of the second-layer equipment to the top of the third-layer equipment, and then the hot air is discharged from the middle of the top of the third-layer equipment.

[0042] The top-layer air duct 3 is the third-layer air duct, which is used to discharge hot air from the third layer. The air duct is an independent space isolated from the second-layer air duct.

[0043] The main shape of the exhaust duct of the bottom air duct 1 is a square hollow duct, which has a bottom air collection area located at the heat dissipation outlet of the first-layer equipment, and the bottom air collection area is a right-angled triangular air collection area. The two right-angled triangular air collection areas can completely cover the heat dissipation outlet of the first-layer equipment, so that the hot air of the first-layer equipment is discharged from the right-angled triangular air collection area, and then directly sent to the top of the third-layer equipment, and discharged from the left and right sides of the top of the third-layer equipment.

[0044] The main body of the straight exhaust duct of the middle-layer air duct 2 is a square hollow duct, which has a right-angled triangular wind collecting area at the heat dissipation outlet of the second-layer equipment. The right-angled triangular wind collecting area is used to completely cover the heat dissipation outlet of the second-layer equipment, so that the hot air of the second-layer equipment is discharged from the right-angled triangular wind collecting area, and then directly sent to the top of the third-layer equipment, and discharged from the middle of the top of the third-layer equipment.

[0045] The lower end of the top-layer air duct is closed, and the upper end is an exhaust port. The top-layer air duct and the middle-layer air duct are assembled into a hollow rectangular parallelepiped sandwiched between the two bottom-layer air ducts, and the bottom-layer air duct, the middle-layer air duct and the top-layer air duct are kept coaxially arranged.

[0046] The difference between Example 3 and Example 2 is that Figure 1-3 It can be seen that the top of the third-layer equipment is the main exhaust outlet, which is divided into four exhaust outlets. The left and right exhaust outlets are for the exhaust of the first-layer equipment, and there are two exhaust outlets in the middle. The two middle exhaust outlets are independent exhaust outlets, which are used for the exhaust of the second and third-layer equipment respectively.

[0047] from Figure 4-6 It can be seen that there are two first-layer air ducts, located on the left and right sides of the top of the third-layer equipment. From the direction of the hot air flow, the hot air flow is concentrated from the first-layer equipment to two right-angled triangular wind collecting areas, and then discharged from the right-angled triangular wind collecting areas into the straight-through pipes, and then discharged from the left and right sides of the top of the third-layer equipment.

[0048] from Figure 7-9 It can be seen that there is only one air duct on the second layer, which is located in the middle of the top of the third layer equipment. From the direction of the hot air flow, the hot air flow is concentrated from the second layer equipment to the right-angle triangle wind collecting area, and then discharged from the right-angle triangle wind collecting area into the straight-through pipe, and then discharged from the middle of the top of the third layer equipment.

[0049] from Figure 10-12It can be seen that there is only one third-layer air duct, located in the middle of the top of the third-layer equipment, which is an independent space from the second-layer air duct. From the direction of the hot air flow, the hot air flow is directly discharged from the middle of the third-layer equipment.

[0050] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also includes equivalent technical means that can be thought of by those skilled in the art based on the inventive concept.

Claims

1. A split independent air duct system for heat dissipation of soft-pack lithium battery capacity division equipment, characterized in that: include: The bottom air duct includes at least one bottom direct exhaust duct, the bottom air inlet of the bottom direct exhaust duct is connected to the exhaust outlet of the bottom equipment, and the top air outlet is directly connected to the top of the top equipment, so as to discharge the hot air generated by the bottom equipment from the top of the top equipment; The middle-layer air duct includes at least one middle straight exhaust duct, the bottom air inlet of the middle straight exhaust duct is connected to the exhaust port of the corresponding middle-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment, so as to discharge the hot air of the middle-layer equipment from the top of the top-layer equipment; and a top-level air duct, which is arranged at the air outlet of the top-level equipment, and has an air inlet on the air duct wall and an air outlet on the top that can communicate with the inner cavity, so as to discharge the hot air generated by the top-level equipment; The main body of the bottom straight exhaust duct is a square hollow duct. A bottom wind collecting area is provided at the bottom air inlet of each bottom straight exhaust duct. The exhaust port of the bottom equipment is completely covered by the bottom wind collecting area, so that the hot air exhausted by the bottom equipment is directly sent to the top of the top equipment after being discharged from the bottom wind collecting area. There are two direct exhaust ducts on the bottom layer, and the wind collecting area on the bottom layer is a right-angled triangular wind collecting area. The two right-angled triangular wind collecting areas completely cover the exhaust port of the bottom layer equipment; the top part of the direct exhaust duct on the bottom layer is arranged on both sides of the top layer equipment, so that the hot air from the bottom layer equipment is directly sent to the top of the top layer equipment through the right-angled triangular wind collecting area, and discharged from the left and right sides of the top of the third layer equipment; The bottom layer equipment, at least one set of middle layer equipment and the top layer equipment are stacked together from bottom to top, and each set of middle layer equipment is equipped with a middle layer direct exhaust duct, the main body of the middle layer direct exhaust duct is a square hollow duct, and a middle layer air collection area is provided at the bottom air inlet of each middle layer direct exhaust duct; the exhaust port of the corresponding middle layer equipment is completely covered by the middle layer air collection area, so that the hot air exhausted by the middle layer equipment is directly sent to the top of the top layer equipment after being discharged from the middle layer air collection area; The main body of the top-level exhaust duct is a square hollow duct, which is an independent space separated from the bottom-level duct and the middle-level duct. A vent is provided on the outer duct wall of the top-level exhaust duct, and an exhaust port that can communicate with the inner cavity is provided on the top. The middle-layer equipment is a set, so that a set of bottom-layer equipment, a set of middle-layer equipment and a set of top-layer equipment are stacked together from bottom to top to form a three-layer structure; The bottom layer direct exhaust duct, the middle layer direct exhaust duct and the top layer direct exhaust duct are assembled together into a rectangular parallelepiped, wherein the two bottom layer direct exhaust ducts are arranged at the two opposite ends of the rectangular parallelepiped, and the middle layer direct exhaust duct and the top layer direct exhaust duct are located in the middle.

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