CN111405810A - A split and independent air duct system for heat dissipation of soft-pack lithium battery capacity separation equipment - Google Patents

Abstract

The utility model provides an independent air duct system of cutting apart that is used for soft packet of lithium cell partial volume equipment to dispel the heat, includes: the bottom air duct comprises at least one bottom straight-through exhaust duct, a bottom air inlet of the bottom straight-through exhaust duct is communicated with an air outlet of the bottommost equipment, and a top air outlet is straight-through to the top of the top equipment; the middle-layer air duct comprises at least one middle straight-through exhaust duct, the bottom air inlet of the middle straight-through exhaust duct is communicated with the air outlet of the corresponding middle-layer equipment, and the top air outlet is straight-through to the top of the top-layer equipment; and the top layer air duct is arranged at the air outlet of the top layer equipment, the wall of the air duct is provided with an air inlet, and the top of the air duct is provided with an air outlet which can be communicated with the inner cavity. The invention has the beneficial effects that: every layer of soft packet of lithium cell partial volume equipment is hot-blast by the drive box discharge, then is hot-blast to be sent to third layer equipment top air exit respectively by every layer of wind channel, mutually noninterfere between the wind channel independently airs exhaust, has avoided the problem of hot-blast refluence.

Description

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

technical field

The invention relates to a split and independent air duct system used for heat dissipation of a capacity dividing device of a soft-pack lithium battery, and belongs to the field of manufacturing lithium battery capacity dividing testing equipment.

Background technique

In the testing process of lithium battery, capacity distribution is a very important process. Capacity distribution is to perform several full-load charge-discharge cycles on the activated lithium battery to test the internal resistance and charge-discharge capacity of the lithium battery. Eliminate batteries with problematic quality (such as low capacity, excessive self-discharge, and excessive internal resistance), and secondly, group batteries according to capacity and internal group, and select batteries with similar performance to form a battery pack. In the process of dividing the capacity test, the lithium battery itself will generate heat due to internal chemical reactions. In addition, a large amount of heat will also be generated during the operation of the test equipment. Therefore, during the operation of the lithium battery device, it is necessary to discharge the heat inside the device in time.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention proposes a split and independent air duct system for heat dissipation of a soft-pack lithium battery capacity dividing device, which has the advantages of simple structure, independent heat dissipation of each layer of soft-pack lithium battery capacity dividing equipment, and no interference with each other.

The present invention provides a split and independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment, characterized in that it includes:

The bottom air duct includes at least one bottom direct exhaust duct, the bottom air inlet of the bottom direct exhaust duct is connected with the exhaust port of the bottom equipment, and the top air outlet is directly connected to the top of the top equipment, which is used to connect the bottom equipment. The generated hot air is exhausted from the top of the top-level equipment;

The middle-layer air duct includes at least one straight-through exhaust duct in the middle. The bottom air inlet of the middle-through exhaust duct is connected to the air outlet of the corresponding middle-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment. The hot air is discharged from the top of the top-level equipment;

And the top-level air duct is arranged at the exhaust port of the top-level equipment, the air duct wall is provided with an air inlet, and the top is provided with an exhaust port that can be communicated with the inner cavity for discharging the hot air generated by the top-level equipment.

The main body shape of the bottom-level straight-through exhaust duct is a square hollow duct, the bottom air inlet of each bottom-level straight-through exhaust duct is provided with a bottom-level air collection area, and the air outlet of the bottom-most equipment is completely covered by the bottom-level air collection area. So that the hot air discharged from the bottom equipment is discharged from the bottom air collecting area and sent directly to the top equipment.

There are two straight air exhaust ducts on the bottom layer, the bottom air collecting area is a right-angled triangle-shaped air collecting area, and the two right-angled triangle-shaped air collecting areas are completely covered at the air outlet of the bottommost equipment; Arranged on both sides of the top-level equipment, so that the hot air of the bottom-level equipment is directly sent to the top of the top-level equipment through the right-angled triangle-shaped air collecting area, and discharged from the left and right sides of the top of the third-level equipment.

The bottom-level equipment, at least one set of middle-level equipment and the top-level equipment are stacked together from bottom to top, and each set of middle-level equipment is equipped with a middle-level straight-through exhaust duct, and the main shape of the middle-level straight-through exhaust duct is a square hollow pipe, There is a middle-layer air collecting area at the bottom air inlet of each middle-layer straight-through exhaust duct; the air outlet of the corresponding middle-layer equipment is completely covered by the middle-layer air-collecting area, so that the hot air discharged from the middle-layer equipment can be directly discharged from the middle-layer air-collecting area. to the top of the equipment.

The main shape of the top exhaust duct is a square hollow duct, which is an independent space isolated from the bottom air duct and the middle air duct. The exhaust port communicates with the cavity.

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

The bottom-layer straight-through exhaust ducts, the middle-layer straight-through exhaust ducts, and the top-level straight-through exhaust ducts are assembled together to form a cuboid, wherein the two bottom-layer straight-through exhaust ducts are arranged at opposite ends of the cuboid, and the middle-layer straight-through exhaust ducts and The top-level straight-through exhaust duct is located in the middle.

The beneficial effects of the present invention are reflected in: the hot air is discharged from the drive box by the capacity dividing equipment of each layer of soft-pack lithium batteries, and then the hot air is sent to the top air outlet of the equipment on the third layer from the air ducts of each layer respectively, and the three air ducts are not connected to each other. Interference, independent exhaust, to avoid the problem of hot air backflow.

Description of drawings

Figure 1. The front view of the split independent air duct system for heat dissipation of the pouch lithium battery capacity distribution equipment;

Figure 2. The top view of the split independent air duct system for heat dissipation of the pouch lithium battery capacity distribution equipment;

Figure 3 Left view of the split independent air duct system for heat dissipation of the pouch lithium battery capacity distribution equipment;

Figure 4 is a front view of an independent air duct on the first floor of the air duct system (dotted arrows represent the flow of hot air);

Figure 5 is a top view of an independent air duct on the first floor of the air duct system (dotted arrows represent the flow direction of hot air);

Figure 6 is a left side view of an independent air duct on the first floor of the air duct system;

Figure 7 is a front view of the independent air duct on the second floor of the air duct system (dotted arrows represent the flow of hot air);

Figure 8 is a top view of the independent air duct on the second floor of the air duct system (dotted arrows represent the flow of hot air);

Figure 9 is a left side view of the independent air duct on the second floor of the air duct system;

Figure 10 is a front view of the three-layer independent air duct of the air duct system (dotted arrows represent the flow of hot air);

Figure 11 is a top view of the three-layer independent air duct of the air duct system (dotted arrows represent the flow of hot air);

Figure 12 is a left side view of the three-layer independent air duct of the air duct system.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Refer to the attached picture:

Embodiment 1 A split and independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment according to the present invention includes:

The bottom air duct 1 includes at least one bottom straight exhaust duct, the bottom air inlet of the bottom straight exhaust duct is connected to the air exhaust port of the bottommost equipment 4, and the top air outlet is directly connected to the top of the top equipment, for the most The hot air generated by the bottom equipment is exhausted from the top of the top equipment;

The middle-layer air duct 2 includes at least one middle straight-through exhaust duct, the bottom air inlet of the middle straight-through exhaust duct is communicated with the air outlet of the corresponding middle-layer equipment 5, and the top air outlet directly leads to the top of the top-level equipment, which is used to The hot air of the middle equipment is discharged from the top of the top equipment;

And the top air duct 3 is arranged at the air outlet of the top equipment, the air duct wall is provided with an air inlet, and the top is provided with an air outlet that can be communicated with the inner cavity to discharge the hot air generated by the top equipment 6 .

The main body shape of the bottom straight exhaust duct is a square hollow pipe, the bottom air inlet of each bottom straight exhaust duct is provided with a bottom air collection area 11, and the air outlet of the bottom equipment is completely covered by the bottom air collection area. , so that the hot air discharged from the bottom equipment is directly sent to the top equipment after being discharged from the bottom air collecting area.

There are two straight air exhaust ducts on the bottom layer, the bottom air collecting area is a right-angled triangle-shaped air collecting area, and the two right-angled triangle-shaped air collecting areas are completely covered at the air outlet of the bottommost equipment; Arranged on both sides of the top-level equipment, so that the hot air of the bottom-level equipment is directly sent to the top of the top-level equipment through the right-angled triangle-shaped air collecting area, and discharged from the left and right sides of the top of the third-level equipment.

The bottom equipment 4, at least one set of middle equipment 5 and the top equipment 6 are stacked together from bottom to top, and each set of middle equipment is equipped with a middle straight exhaust duct, and the main body shape of the middle straight exhaust duct is square For hollow pipes, there is a middle-layer air collecting area 21 at the bottom air inlet of each middle-layer straight-through exhaust duct; the air outlet of the corresponding middle-layer equipment is completely covered by the middle-layer air collecting area, so that the hot air discharged from the middle-layer equipment can be collected from the middle layer. After the area is discharged, it is directly sent to the top of the top equipment.

The main body shape of the top exhaust duct is a square hollow duct, which is an independent space isolated from the bottom air duct and the middle air duct. The outer air duct wall of the top exhaust duct is provided with a vent 31, and the top is provided with a ventilation port 31. An exhaust port that communicates with the inner cavity.

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

The bottom-layer straight-through exhaust ducts, the middle-layer straight-through exhaust ducts, and the top-level straight-through exhaust ducts are assembled together to form a cuboid, wherein the two bottom-layer straight-through exhaust ducts are arranged at opposite ends of the cuboid, and the middle-layer straight-through exhaust ducts and The top-level straight-through exhaust duct is located in the middle.

Embodiment 2 A split and independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment according to the present invention includes:

The bottom air duct 1, which is the first layer of air duct, is used for hot air discharge from the bottom layer. It consists of two straight-through exhaust ducts, which go straight from the left and right sides of the air outlet of the first-layer equipment to the top of the third-layer equipment, and then the hot air flows from The left and right sides of the top of the third-tier device are discharged.

The middle-layer air duct 2 is the second-layer air duct, which is used for the middle-layer hot air discharge. It consists of a straight-through exhaust duct, which goes straight 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 flows from the third-layer equipment. The middle drain at the top of the layer device.

The top-level air duct 3 is the third-layer air duct, which is used for the discharge of the third-layer hot air, and its air duct is an independent space isolated by the second-layer air duct.

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

The main body shape of the straight-through exhaust duct of the middle-layer air duct 2 is a square hollow duct, and there is a right-angled triangle-shaped air collecting area at the heat dissipation outlet of the second-layer equipment. The right-angled triangle-shaped air collecting area is used to completely cover the heat dissipation ports of the second-layer equipment, so that the hot air of the second-layer equipment is discharged from the right-angled triangle-shaped air collecting area, and then the hot air is directly sent to the top of the third-layer equipment, and from the The middle drain at the top of the third tier device.

The lower end of the top air duct is closed, and the upper end is the air outlet. The top air duct and the middle air duct are assembled into a hollow cuboid sandwiched between the two bottom air ducts, and the bottom air duct, the middle air duct and the top air duct are coaxially arranged. .

The difference between Example 3 and Example 2 is that, as can be seen from Figures 1-3, the top of the third-layer equipment is the total exhaust port, which is divided into four exhaust ports, and the left and right two exhaust ports are the first layer. For the exhaust of the equipment, there are two exhaust ports in the middle, and the two middle exhaust ports are independent exhaust ports, which are respectively used for the exhaust of the second and third floor equipment.

As can be seen from Figure 4-6, there are two air ducts on the first layer, which are located on the left and right sides of the top of the equipment on the third layer. From the direction of the hot air flow, the hot air flows from the equipment on the first layer to the two right-angled triangle air collecting areas. , and then discharged from the right-angled triangle air collection area into the straight-through pipeline, and then discharged from the left and right sides of the top of the third-layer equipment.

As can be seen from Figure 7-9, there is only one air duct on the second layer, which is located in the middle of the top of the equipment on the third layer. From the direction of the hot air flow, the hot air is concentrated from the equipment on the second layer to the right-angled triangular air collecting area, and then from the right-angle The discharge of the triangular air collection area is straight through the pipeline, and then discharged from the middle of the top of the third layer of equipment.

As can be seen from Figure 10-12, there is only one air duct on the third floor, which is located in the middle of the top of the equipment on the third floor, and is an independent space for the air duct on the second floor. From the perspective of the direction of the hot air, the hot air is directly discharged from the middle of the third layer of equipment.

The content described in the embodiments of the present specification is only an enumeration of the realization forms of the inventive concept, and the protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments, and the protection scope of the present invention also includes those skilled in the art Equivalent technical means conceivable according to the inventive concept.

Claims (7)

1. a split independent air duct system for the heat dissipation of soft pack lithium battery capacity dividing equipment, is characterized in that, comprises: The bottom air duct includes at least one bottom direct exhaust duct, the bottom air inlet of the bottom direct exhaust duct is connected with the exhaust port of the bottom equipment, and the top air outlet is directly connected to the top of the top equipment, which is used to connect the bottom equipment. The generated hot air is exhausted from the top of the top-level equipment; The middle-layer air duct includes at least one straight-through exhaust duct in the middle. The bottom air inlet of the middle-through exhaust duct is connected to the air outlet of the corresponding middle-layer equipment, and the top air outlet is directly connected to the top of the top-layer equipment. The hot air is discharged from the top of the top-level equipment; And the top-level air duct is arranged at the exhaust port of the top-level equipment, the air duct wall is provided with an air inlet, and the top is provided with an exhaust port that can be communicated with the inner cavity for discharging the hot air generated by the top-level equipment. 2. A split-independent air duct system for heat dissipation of a capacity dividing device for soft-pack lithium batteries as claimed in claim 1, characterized in that: the main body shape of the bottom straight-through exhaust duct is a square hollow duct, and each bottom layer has a square hollow duct. There is a bottom air collecting area at the bottom air inlet of the straight exhaust duct, and the air outlet of the bottom equipment is completely covered by the bottom air collecting area, so that the hot air discharged from the bottom equipment is discharged from the bottom air collecting area and sent directly to the bottom. Above the top-level device. 3. A split-independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment as claimed in claim 2, characterized in that: there are two straight-through exhaust ducts on the bottom layer, and the bottom air-collecting area is a right-angled triangle The two right-angled triangle-shaped air collecting areas completely cover the air outlet of the bottom equipment; the top part of the bottom straight exhaust duct is arranged on both sides of the top equipment, so that the hot air of the bottom equipment passes through the right triangle. The air collecting area is directly sent to the top of the top-level equipment, and discharged from the left and right sides of the top of the third-level equipment. 4. A kind of split independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment as claimed in claim 1, it is characterized in that: the bottommost equipment, at least one set of middle equipment and the top equipment are stacked sequentially from bottom to top together, and each set of middle-layer equipment is equipped with a middle-layer straight-through exhaust duct, the main shape of the middle-layer straight-through exhaust duct is a square hollow duct, and a middle-layer air collecting area is arranged at the bottom air inlet of each middle-layer straight-through exhaust duct ; The air outlet of the corresponding middle-level equipment is completely covered by the middle-level air collection area, so that the hot air discharged from the middle-level equipment is discharged directly from the middle-level air collection area to the top of the top-level equipment. 5 . The split-independent air duct system for heat dissipation of a capacity dividing device for soft-pack lithium batteries according to claim 1 , wherein the main body shape of the top exhaust duct is a square hollow duct, which is a bottom air duct. 6 . An independent space isolated from the middle-level air duct, the outer air duct wall of the top-level exhaust duct is provided with a vent, and the top is provided with an exhaust port that can communicate with the inner cavity. 6. A kind of split independent air duct system for heat dissipation of soft-pack lithium battery capacity dividing equipment as claimed in claim 4, it is characterized in that: described middle-level equipment is a set, so that a set of bottom-most equipment, a set of middle-level equipment The equipment and a set of top-level equipment are stacked together from bottom to top to form a three-layer structure. 7. The split-independent air duct system as claimed in claim 5, characterized in that: the bottom-layer straight-through exhaust duct, the middle-layer straight-through exhaust duct and the top-level straight-through exhaust duct The pipes are assembled together to form a rectangular parallelepiped, wherein the two bottom-layer straight-through exhaust ducts are arranged at opposite ends of the cuboid, and the middle-layer straight-through exhaust duct and the top-level straight-through exhaust duct are located in the middle.

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