Air cavity type air duct system

Abstract

An air cavity type air duct system comprises a cuboid air cavity type air duct assembly, and a forward fan assembly is arranged on the rear side of the air cavity type air duct assembly. The air cavity type air duct assembly comprises a plurality of air duct partition plates, and partition plate fins and partition plate guide plates from the different air duct partition plates are connected to form a plurality of air outlets. A middle frame assembly is connected above the air outlets, and a plurality of round air through holes opposite to the air outlets in position are formed in the middle frame assembly. The upper surface of the middle frame assembly is connected with a tray assembly, and an external battery is loaded on the tray assembly. And each battery channel corresponds to one independent air inlet with the same size. According to the equipment, the air volume entering the charging and discharging equipment is mechanically and uniformly distributed according to the number of battery channels of the charging and discharging equipment through the air cavity type air channel assembly, so that the consistency of the ventilation performance of each battery channel is ensured, the temperature uniformity control on a battery assembly is really realized, the utilization efficiency of a fan is improved, and the noise generated by the equipment is reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of chemical fractionation equipment, in particular to an air cavity type air duct system. Background Art

[0002] The charging and discharging equipment of the lithium battery back-end production system is mainly used for the formation and capacity separation of lithium batteries. Because the ambient temperature has a direct impact on the performance of lithium batteries in the charging and discharging state, the charging and discharging equipment clearly requires the temperature control of lithium batteries to ensure the quality of lithium batteries. Under normal circumstances, the charging and discharging equipment is equipped with a cooling fan, and the conventional air duct system is used to supply cold air to the battery to achieve the purpose of constant temperature control of the lithium battery in the equipment.

[0003] The conventional air duct system currently used in charging and discharging equipment mainly includes three parts: a tray assembly 51, a middle frame assembly 52 and a fan assembly 53. Among them, the middle frame assembly 52 is an inherent component in the charging and discharging equipment. The tray assembly 51 is fixed above the middle frame assembly 52, and the fan assembly 53 is fixed below the middle frame assembly. The fan assembly blows cold air in the direction of the tray assembly, and the cold air passes through the middle frame assembly and the tray assembly in turn, taking away the heat of the battery assembly in the tray, thereby forming a temperature control effect on the battery assembly. The tray assembly is composed of a battery assembly, a tray bottom plate, a tray limit plate and a tray fixed side plate. The tray bottom plate has two functions, one is to support the battery assembly in the vertical direction (gravity direction), and the other is to play a role in ventilation and heat dissipation; on the tray bottom plate 51, the same number of ventilation circular holes are evenly distributed around each battery for ventilation and heat dissipation. Several reinforcing ribs 521 intersecting horizontally and vertically are provided inside the middle frame assembly 52 to enhance the strength of the middle frame assembly 52; the middle frame outer frame 523 is used to fix the entire middle frame assembly. Each fan in the fan assembly 53 corresponds to the ventilation area in the middle frame assembly divided by the middle frame reinforcement rib 521. However, due to the number of battery channels of the charging and discharging equipment, it is difficult to form a perfect mechanical structure symmetry relationship with the reinforcement ribs, so the size of the independent area formed by the middle frame reinforcement ribs is inconsistent, resulting in different numbers of batteries corresponding to each fan, and thus the temperature control problem of the tray battery assembly cannot be solved.

[0004] However, as the energy density of lithium batteries increases, the number of channels in the equipment increases, especially the 4680 large cylindrical equipment with 256 channels. On the one hand, the total heat in the charging and discharging equipment increases sharply, and on the other hand, as the number of channels in the charging and discharging equipment increases, the individual differences of the batteries become more difficult to control. According to the production process of lithium batteries, the temperature of the lithium batteries in the 256 channels of the charging and discharging equipment must ensure that the temperature rise is ≤15°C, and the temperature uniformity of the batteries in the 256 channels at the same time must be ≤±2°C. Therefore, in order to ensure the temperature control effect of the lithium batteries in the charging and discharging equipment, the number of fans has increased sharply. When the existing conventional air duct system distributes the air volume, the corresponding ventilation performance of the batteries in different channel positions is not completely consistent. And the more lithium batteries there are, the more obvious this problem is. Simply adding fans will also lead to problems such as rising costs, increased additional energy consumption, and increased noise, and it is also easy to cause a decrease in structural strength due to the need to reserve ventilation space. Summary of the invention

[0005] In view of the above problems, the utility model proposes an air cavity type duct system, comprising an air cavity type duct component of a rectangular parallelepiped, wherein two pairs of sides on the horizontal plane of the air cavity type duct component are defined as the front side and the rear side, and the other two sides are the left side and the right side; a forward-facing fan component is provided at the rear of the air cavity type duct component; the air cavity type duct component comprises a plurality of air duct partitions which are parallel to each other and connected to each other up and down, the air duct partition comprises a horizontal partition bottom plate, the front end of the partition bottom plate is provided with a partition guide plate which extends left and right and is perpendicular to the horizontal plane; the upper surface of the partition bottom plate is provided with a plurality of partitions which extend front and back The partition wall pieces are arranged at equal intervals between the adjacent partition wall pieces on the left and right sides, and the front end of the partition wall piece is a partition fin connected to the partition guide plate; the widths of the plurality of duct partitions in the front-to-back direction decrease from bottom to top, and the widths in the left-to-right direction remain unchanged; vertical duct side panels are arranged on the left and right sides of the bottom duct partition; the partition fins and partition guide plates from a plurality of different duct partitions are connected to form a plurality of air outlets of the same size; the partition bottom plates and partition wall pieces of the upper and lower adjacent duct partitions are tightly connected to each other to form a plurality of air inlets of the same size, and the air inlets face the fan assembly;

[0006] A middle frame assembly is connected above the air outlet, and the middle frame assembly is provided with a plurality of circular air holes corresponding to the positions of the air outlets; a tray assembly is connected to the upper surface of the middle frame assembly, and the tray assembly is provided with a plurality of battery clamps corresponding to the positions of the circular air holes, and the battery clamps are loaded with external batteries, and each air outlet corresponds to an external battery.

[0007] More specifically, each air duct partition includes 16 partition wall pieces and partition fins.

[0008] More specifically, the middle frame assembly uses steel plate as material.

[0009] More specifically, the air duct formed by stacking a number of air duct partitions up and down has good air tightness.

[0010] During operation, the fan assembly supplies cold air to the air duct formed by several air duct partitions stacked up and down. The air duct of the air cavity type air duct assembly evenly supplies the cold air to the batteries on the tray assembly, achieving a uniform heat dissipation effect.

[0011] Compared with the prior art, the technical effect of the utility model is that: by unifying the size of the partition wall and the partition bottom plate that overlap each other, it is ensured that each battery channel corresponds to an independent air inlet of exactly the same size. Through the air cavity type air duct assembly, the air volume entering the charging and discharging equipment is mechanically and evenly distributed according to the number of battery channels of the charging and discharging equipment, ensuring the consistent ventilation performance of each battery channel, thereby truly realizing the temperature uniformity control of the battery assembly, improving the utilization efficiency of the fan, significantly reducing the number of fans, and reducing the noise generated by the equipment. At the same time, the middle frame assembly of the utility model has a higher strength because it uses a whole piece of steel plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a structural diagram of an air cavity type air duct system.

[0013] Figure 2 It is a structural diagram of the middle frame assembly of the utility model.

[0014] Figure 3 This is the first longitudinal section view of the utility model.

[0015] Figure 4 This is a second longitudinal section view of the present utility model.

[0016] Figure 5 It is a third longitudinal section view of the present utility model.

[0017] Figure 6 It is a fourth longitudinal section view of the present utility model.

[0018] Figure 7 It is a partial enlarged view of the tray assembly of the utility model.

[0019] Figure 8 It is a partial enlarged view of the air cavity type air duct component of the utility model.

[0020] Fig. 9 It is an exploded view of the utility model.

[0021] Fig.10 This is an exploded view of the air cavity type air duct component of the utility model.

[0022] Fig.11 This is a structural diagram of the air duct partition of the utility model.

[0023] Fig.12 It is a partial cross-sectional view of the air duct partition of the utility model.

[0024] Fig.13 This is a schematic diagram of the structure of a conventional air duct system.

[0025] Fig.14 This is an exploded diagram of a conventional air duct system. DETAILED DESCRIPTION

[0026] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0033] A wind cavity type air duct system, comprising a wind cavity type air duct assembly 3 of a rectangular parallelepiped, wherein two opposite sides on a horizontal plane of the wind cavity type air duct assembly 3 are defined as a front side and a rear side, and the other two sides are a left side and a right side; a forward-facing fan assembly 4 is disposed at the rear of the wind cavity type air duct assembly; the wind cavity type air duct assembly 3 comprises a plurality of wind duct baffles 31 which are parallel to each other and connected to each other, the wind duct baffles 31 comprising a horizontal baffle bottom plate 312, a baffle guide plate 313 extending left and right and perpendicular to the horizontal plane is disposed at the front end of the baffle bottom plate 312; a plurality of baffle wall pieces 314 extending front and rear are disposed on the upper surface of the baffle bottom plate; a left baffle wall piece 314 extending front and rear is ... The spacing between the right adjacent partition wall pieces 314 is equal, and the front end of the partition wall piece 314 is a partition fin 311 connected to the partition guide plate 313; the width of the plurality of duct partitions 31 in the front-to-back direction decreases from bottom to top, and the width in the left-to-right direction remains unchanged; vertical duct side plates 32 are provided on the left and right sides of the bottom duct partition; the partition fins and partition guide plates from several different duct partitions are connected to form a plurality of air outlets of the same size; the partition bottom plates and partition wall pieces of the upper and lower adjacent duct partitions are tightly connected to each other to form a plurality of air inlets of the same size, and the air inlets are directly opposite to the fan assembly;

[0034] A middle frame assembly 2 is connected above the air outlet, and the middle frame assembly is provided with a plurality of circular air holes corresponding to the positions of the air outlets; a tray assembly 2 is connected to the upper surface of the middle frame assembly 2, and the tray assembly 1 is provided with a plurality of battery clamps corresponding to the positions of the circular air holes, and the battery clamps are loaded with external batteries, and each air outlet corresponds to an external battery.

[0035] In some embodiments, the air chamber type air duct assembly includes 16 air duct partitions; each air duct partition includes 16 partition wall pieces and partition fins.

[0036] In some embodiments, taking a 256-channel battery charging and discharging device as an example, 16 air duct partitions are used to isolate the rear end of the air cavity air duct assembly into 16 air inlets of size h in the height direction; 16 partition fins are used to isolate the rear end of the air cavity air duct assembly into 16 air inlets of size Ws in the width direction. That is, the air cavity air duct assembly is isolated into 16*16=256 independent small air inlets of size h*Ws by the partition bottom plate and the partition wall. The partition guide is responsible for directing the wind from each independent air inlet to the corresponding battery channel, that is, the 16*16 battery channels correspond one-to-one to the 16*16 identical independent small air inlets. The fan assembly includes 8 fans, each of which independently corresponds to 16*2=32 battery channels. The air volume of each fan is symmetrically and mechanically divided into 32 parts, each of which corresponds to a battery channel. Theoretically, if the performance of the 8 fans is consistent, the total air volume of the fans will be evenly divided into 32*8=256 parts, corresponding to the 256-channel batteries. The width W1 of the air cavity duct assembly is related to the number of charging and discharging equipment channels, so the number of fans needs to be adjusted according to the width of the air cavity duct assembly. The width W2 of a single fan can satisfy the following relationship W1=8W2=16*Ws. The height H1 of the air cavity duct assembly is affected by the size of the fan. When the ventilation volume of the independent air inlet of a single battery channel can meet the battery heat dissipation requirements, the air inlet size h can be determined. The height H2 of a single fan can satisfy the following relationship H1=H2=16*h.

[0037] In some embodiments, the middle frame assembly is made of steel plate.

[0038] In some embodiments, the air duct formed by stacking a plurality of air duct partitions up and down has good air tightness.

[0039] During operation, the fan assembly supplies cold air to the air duct formed by several air duct partitions stacked up and down. The air duct of the air cavity type air duct assembly evenly supplies the cold air to the batteries on the tray assembly, achieving a uniform heat dissipation effect.

[0040] Compared with the prior art, the technical effect of the utility model is that: by unifying the size of the partition wall and the partition bottom plate that overlap each other, it is ensured that each battery channel corresponds to an independent air inlet of exactly the same size. Through the air cavity type air duct assembly, the air volume entering the charging and discharging equipment is mechanically and evenly distributed according to the number of battery channels of the charging and discharging equipment, ensuring the consistent ventilation performance of each battery channel, thereby truly realizing the temperature uniformity control of the battery assembly, improving the utilization efficiency of the fan, significantly reducing the number of fans, and reducing the noise generated by the equipment. At the same time, the middle frame assembly of the utility model has a higher strength because it uses a whole piece of steel plate structure.

Claims

1. An air chamber type air duct system, characterized in that: The wind turbine of claim 1, wherein the wind turbine has two opposite sides, one on each side of the wind turbine and the other on the side of the wind turbine. The wind turbine of claim 1, wherein the two opposite sides are front and rear, and the other two sides are left and right. A forward-facing fan assembly is disposed at the rear of the wind turbine. The wind turbine assembly comprises a plurality of duct partitions which are parallel and interconnected to each other. The duct partition comprises a horizontal partition bottom plate, a partition guide plate which extends left and right and is perpendicular to the horizontal plane at the front end of the partition bottom plate. A plurality of partition wall plates which extend front and back are disposed on the upper surface of the partition bottom plate. The spacing between adjacent partition wall plates on the left and right is equal, and the front end of the partition wall plates is a partition fin connected to the partition guide plate. The width of the plurality of duct partitions in the front-to-back direction decreases one by one from bottom to top, and the width in the left-to-right direction remains unchanged. Vertical duct side plates are disposed on the left and right sides of the bottom duct partition. The partition fins and partition guide plates from a plurality of different duct partitions are connected to form a plurality of air outlets. A middle frame assembly is connected above the air outlet, and the middle frame assembly is provided with a plurality of circular air holes corresponding to the position of the air outlet; a tray assembly is connected to the upper surface of the middle frame assembly, and the tray assembly is provided with a plurality of battery clamps corresponding to the positions of the circular air holes, and the battery clamps carry external batteries.

2. The air chamber type air duct system according to claim 1, characterized in that: Each air duct partition includes 16 partition wall pieces and partition fins.

3. The air chamber type air duct system according to claim 1, characterized in that: The middle frame assembly is made of steel plate.

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