Energy storage cabinet

Abstract

The utility model discloses an energy storage cabinet which comprises a cabinet body, a cabinet body frame, a battery pack and a heat exchange device. The cabinet body frame is installed in the cabinet body, the battery pack is installed on the cabinet body frame, the battery pack comprises a cold air inlet and a hot air outlet, the cold air inlet side is provided with a relatively closed cold air channel, the hot air outlet side is provided with a hot air channel, and the cold air channel and the hot air channel are jointly defined by the battery pack, the cabinet body frame and the cabinet body respectively. The heat exchange device comprises a cold air outlet and a hot air inlet, the hot air inlet is communicated with the hot air channel, and the cold air outlet is communicated with the cold air channel. The relatively-closed cold air channel on the cold air inlet side of the battery pack and the hot air channel on the hot air outlet side of the battery pack are constructed, so that cold and hot isolated air channels are realized, meanwhile, the relatively-closed cold air channel enables the air pressure on the cold air inlet side of the battery pack to be large, and a single air channel flow direction is formed in combination with the heat exchange device; the problems of air duct disorder and low heat dissipation efficiency in the energy storage cabinet are solved, and the power of the heat exchange device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of energy storage cabinets, in particular to an energy storage cabinet. Background Art

[0002] Energy storage cabinets are generally used to load batteries, and batteries are more sensitive to temperature than other electronic components. Therefore, energy storage cabinets have high requirements for the control of the temperature range and accuracy inside the cabinet. The charging and discharging process of the batteries in general energy storage cabinets takes more than several hours. Due to the chemical reaction of the battery, the battery will generate a large amount of heat. The heat accumulates with the increase of charging and discharging time. The heat will increase the temperature of the battery and the energy storage cabinet environment. If the temperature is too high, it will cause irreversible damage to the consistency of the battery and the energy storage cabinet, and ultimately lead to serious consequences such as poor battery consistency and short life of the energy storage cabinet.

[0003] However, the air duct structure in the existing energy storage cabinet only considers the flow direction of cold air entering the battery pack. Therefore, there are problems such as disordered air ducts in the energy storage cabinet, low heat dissipation efficiency, and uneven heat dissipation of battery packs at different positions in the energy storage cabinet. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an energy storage cabinet in view of at least one defect of the related technology mentioned in the above background technology: disordered air ducts in the energy storage cabinet and low heat dissipation efficiency.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct an energy storage cabinet, including:

[0006] Cabinet;

[0007] A cabinet frame, the cabinet frame is installed in the cabinet;

[0008] A battery pack, wherein the battery pack is mounted on the cabinet frame, and the battery pack includes a cold air inlet and a hot air outlet; the cold air inlet side has a relatively closed cold air channel, and the hot air outlet side has a hot air channel, and the cold air channel and the hot air channel are respectively defined by the battery pack, the cabinet frame, and the cabinet; and

[0009] A heat exchange device, wherein the heat exchange device comprises a cold air outlet and a hot air inlet, the hot air inlet is connected to the hot air channel, and the cold air outlet is connected to the cold air channel.

[0010] Preferably, in the energy storage cabinet described in the utility model, the cabinet frame is tightly connected to the cabinet and the battery pack, respectively, to form a relatively closed cold air channel.

[0011] Preferably, in the energy storage cabinet described in the utility model, the energy storage cabinet further includes:

[0012] An air guide member includes an air inlet and an air outlet, wherein the air inlet is connected to the cold air outlet, and the air outlet is connected to the cold air channel and corresponds to the cold air inlet.

[0013] Preferably, in the energy storage cabinet described in the present invention, the air guide member is located at the top of the cabinet frame, and the air outlet faces downward and corresponds to the cold air inlet.

[0014] Preferably, in the energy storage cabinet described in the utility model, the air guide member includes an inlet portion and at least one outlet portion;

[0015] The air inlet at the first end of the inlet portion is connected to the cold air outlet, the second end of the inlet portion is connected to the third end of the outlet portion, and the air outlet at the fourth end of the outlet portion is connected to the cold air channel;

[0016] The width of the inlet portion gradually increases from the first end to the second end.

[0017] Preferably, in the energy storage cabinet of the utility model, at least two battery packs are installed in the width direction of the cabinet frame;

[0018] The air guide member includes at least two outlet portions, and the at least two outlet portions are arranged in parallel in the width direction of the second end of the inlet portion, and each of the outlet portions corresponds to one of the battery packs in the width direction of the cabinet frame.

[0019] Preferably, in the energy storage cabinet described in the utility model, the battery pack includes at least two cold air inlets in the width direction thereof;

[0020] At least one partition is provided inside the outlet portion, and the partition extends from the third end of the outlet portion toward the fourth end. The partition divides the internal space of the outlet portion into at least two air ducts with the same spatial flow rate, and each air outlet of the air duct corresponds to one of the cold air inlets.

[0021] Preferably, in the energy storage cabinet described in the present invention, in at least two of the outlet parts, the width of the air duct at the third end of the outlet part gradually increases from the middle of the second end of the inlet part toward the side where the outlet part is located; the air outlet width of the air duct at the fourth end of the outlet part is the same.

[0022] Preferably, in the energy storage cabinet of the present utility model, a plurality of battery packs are installed in the height direction of the cabinet frame;

[0023] The energy storage cabinet also includes:

[0024] At least one guide plate is installed on the cabinet, the guide plate is located in the cold air channel and close to the air outlet, and the guide plate is parallel to the width direction of the cabinet frame and tilted downward to guide the cold air to the battery pack on the upper part of the cabinet frame in its width direction.

[0025] Preferably, in the energy storage cabinet described in the utility model, the energy storage cabinet includes at least two guide plates, and the at least two guide plates are arranged from top to bottom, and each guide plate corresponds to the battery pack at a height position on the cabinet frame.

[0026] By implementing the utility model, the following beneficial effects are achieved:

[0027] The utility model realizes cold and hot isolation air ducts by constructing a relatively closed cold air duct on the cold air inlet side of the battery pack and a hot air duct on the hot air outlet side of the battery pack. At the same time, the relatively closed cold air duct makes the wind pressure on the cold air inlet side of the battery pack large. Combined with the heat exchange device, a single air duct flow direction is formed, and multi-directional air ducts will not appear. The problems of disordered air ducts and low heat dissipation efficiency in the energy storage cabinet are solved, and the power of the heat exchange device can be reduced.

[0028] In addition, the air guides ensure uniform distribution of cold air in the width direction of the cold air channel, and the guide plates ensure uniform distribution of cold air in the height direction of the cold air channel, so that the cold air inhaled by battery packs at different positions in the energy storage cabinet is relatively uniform, solving the problem of uneven heat dissipation of each battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0030] Figure 1 It is a schematic diagram of the energy storage cabinet of the utility model;

[0031] Figure 2 It is a schematic diagram of a guide plate in the energy storage cabinet of the utility model;

[0032] Figure 3 It is a schematic diagram of the air guide member of the utility model, wherein one of the two symmetrical outlet parts has a top cover removed;

[0033] Figure 4 It is a schematic diagram of air flow of the energy storage cabinet of the utility model. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "length", "width", "height", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "located at", and "located at" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a chemical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0038] in, Figure 1 The width direction W and the height direction H of the energy storage cabinet are shown, specifically the width direction W and the height direction H of the cabinet frame 2 , the battery pack 3 and the cold air channel 6 described below.

[0039] like Figure 1 As shown, an embodiment of the utility model discloses an energy storage cabinet, including a cabinet body 1, a cabinet body frame 2, a battery pack 3 and a heat exchange device 4, which are specifically as follows:

[0040] The cabinet frame 2 is installed in the cabinet 1, and the battery pack 3 is installed on the cabinet frame 2. Figure 4 As shown, the battery pack 3 includes a cold air inlet 31 and a hot air outlet 32. The cold air inlet 31 side has a relatively closed cold air channel 6, and the hot air outlet 32 ​​side has a hot air channel 7. The cold air channel 6 and the hot air channel 7 are respectively defined by the battery pack 3, the cabinet frame 2 and the cabinet 1, and the cold air channel 6 and the hot air channel 7 are isolated inside the cabinet 1.

[0041] like Figure 1 and Figure 4As shown, the heat exchange device 4 is installed on the cabinet 1. In some embodiments, the heat exchange device 4 is installed on the front door of the cabinet 1. The heat exchange device 4 includes a cold air outlet 41 and a hot air inlet 42. The hot air inlet 42 is connected to the hot air channel 7, and the cold air outlet 41 is connected to the cold air channel 6. For example, the heat exchange device 4 is an air conditioner, and the air conditioner here is only an example and is not intended to limit the present application.

[0042] Among them, the relatively closed cold air channel 6 can make the wind pressure on the side of the cold air inlet 31 of the battery pack 3 large, and form a single air duct flow direction in combination with the heat exchange device 4, and there will be no multi-directional air duct situation, which solves the problems of chaotic air ducts and low heat dissipation efficiency in the energy storage cabinet, and can reduce the power of the heat exchange device 4.

[0043] like Figure 1 As shown, in order to further enhance the air flow direction, the battery pack 3 further includes an exhaust device 33, which is used to introduce cold air from the cold air inlet 31 and exhaust hot air from the hot air outlet 32. For example, the exhaust device 33 is a fan, and the fan here is only an example and is not intended to limit the present application.

[0044] In order to form a relatively closed cold air channel 6 and ensure that cold air flows into the battery pack 3 as much as possible, the cabinet frame 2 is tightly connected to the cabinet 1 and the battery pack 3 respectively. For example, the cabinet frame 2 is directly welded to the cabinet 1 to reduce the gap. The cabinet frame 2 includes a receiving cavity with openings at both ends, and the shape of the battery pack 3 is adapted to the shape of the receiving cavity, and the battery pack 3 is tightly embedded in the receiving cavity. The welding and tight embedding here are only examples and are not intended to limit the present application.

[0045] In some embodiments, the energy storage cabinet further includes an air guide 5, which is installed on the cabinet 1 or the cabinet frame 2, and includes an air inlet 51 and an air outlet 52, wherein the air inlet 51 is connected to the cold air outlet 41, and the air outlet 52 is connected to the cold air channel 6 and corresponds to the cold air inlet 31. It should be noted that the correspondence between the air outlet 52 and the cold air inlet 31 means that the width of the air outlet 52 is greater than or equal to the width of the cold air inlet 31, and the positions correspond to each other without misalignment.

[0046] like Figure 4 As shown, in order to allow the cold air inlets 31 of all battery packs 3 to inhale cold air, the air guide 5 is located at the top of the cabinet frame 2, and the air outlet 52 faces downward, that is, the cold air coming out of the air outlet 52 can flow directly to the cold air inlet 31.

[0047] In some embodiments, Figure 3As shown, the air guide 5 includes an inlet portion 53 and at least one outlet portion 54. The air inlet 51 at the first end of the inlet portion 53 is connected to the cold air outlet 41, the second end of the inlet portion 53 is connected to the third end of the outlet portion 54, and the air outlet 52 at the fourth end of the outlet portion 54 is connected to the cold air channel 6. The width w1 of the inlet portion 53 gradually increases from the first end to the second end thereof to reduce the flow resistance, and the width of the first end of the inlet portion 53 is small in order to adapt to the cold air outlet 41 of the heat exchange device 4.

[0048] In some embodiments, when at least two battery packs 3 are installed in the width direction of the cabinet frame 2, Figure 3 As shown, the air guide 5 includes an inlet portion 53 and at least two outlet portions 54. The air inlet 51 at the first end of the inlet portion 53 is connected to the cold air outlet 41, and at least two outlet portions 54 are arranged in parallel in the width direction of the second end of the inlet portion 53. Each outlet portion 54 corresponds to a battery pack 3 in the width direction of the cabinet frame 2, and the second end of the inlet portion 53 is connected to the third end of the outlet portion 54, and the air outlet 52 at the fourth end of the outlet portion 54 is connected to the cold air channel 6. The width w1 of the inlet portion 53 gradually increases from the first end to the second end to reduce the flow resistance. At the same time, the width of the first end of the inlet portion 53 is small in order to adapt to the cold air outlet 41 of the heat exchange device 4.

[0049] In some embodiments, when the battery pack 3 includes at least two cold air inlets 31 in the width direction thereof, Figure 3 As shown, the air guide 5 includes an inlet portion 53 and at least one outlet portion 54. The air inlet 51 at the first end of the inlet portion 53 is connected to the cold air outlet 41, the second end of the inlet portion 53 is connected to the third end of the outlet portion 54, and the air outlet 52 at the fourth end of the outlet portion 54 is connected to the cold air channel 6. The width w1 of the inlet portion 53 gradually increases from the first end to the second end thereof to reduce the flow resistance, and the width of the first end of the inlet portion 53 is small in order to adapt to the cold air outlet 41 of the heat exchange device 4.

[0050] At least one partition 55 is provided inside the outlet portion 54, and the partition 55 extends from the third end of the outlet portion 54 to the fourth end. The partition 55 divides the internal space of the outlet portion 54 into at least two air ducts with the same spatial flow rate. The air outlet 52 of each air duct corresponds to a cold air inlet 31, thereby ensuring that the cold air is evenly distributed in the width direction of the cold air channel 6, so that each cold air inlet 31 has the same flow rate of cold air for inhalation. Therefore, the number of air ducts inside the outlet portion 54 is related to the number of cold air inlets 31 of the battery pack 3.

[0051] In some embodiments, when at least two battery packs 3 are installed in the width direction of the cabinet frame 2, and the battery pack 3 includes at least two cold air inlets 31 in the width direction thereof, as shown in FIG. Figure 3As shown, the air guide 5 includes an inlet portion 53 and at least two outlet portions 54. The air inlet 51 at the first end of the inlet portion 53 is connected to the cold air outlet 41, and at least two outlet portions 54 are arranged in parallel in the width direction of the second end of the inlet portion 53. Each outlet portion 54 corresponds to a battery pack 3 in the width direction of the cabinet frame 2, and the second end of the inlet portion 53 is connected to the third end of the outlet portion 54, and the air outlet 52 at the fourth end of the outlet portion 54 is connected to the cold air channel 6. The width w1 of the inlet portion 53 gradually increases from its first end to the second end to reduce the flow resistance. At the same time, the small width of the first end of the inlet portion 53 is to adapt to the cold air outlet 41 of the heat exchange device 4. Among them, Figure 1 The width direction W and the height direction H of the cabinet frame 2 , the battery pack 3 and the cold air duct 6 are shown.

[0052] At least one partition 55 is provided inside each outlet portion 54 , and the partition 55 extends from the third end of the outlet portion 54 to the fourth end. The partition 55 divides the internal space of the outlet portion 54 into at least two air ducts with the same spatial flow rate. The air outlet 52 of each air duct corresponds to a cold air inlet 31 , thereby ensuring that the cold air in the width direction of the cold air channel 6 is evenly distributed, so that each cold air inlet 31 has the same flow rate of cold air for inhalation. Therefore, the number of air ducts inside the outlet portion 54 is related to the number of cold air inlets 31 of the battery pack 3 .

[0053] Specifically, the flow rate in the middle of the inlet 53 is the largest, and the flow rate decreases as it moves toward the sides. Therefore, in each outlet 54, the width of the air duct at the third end of the outlet 54 gradually increases from the middle of the second end of the inlet 53 toward the side where the outlet 54 is located, that is, Figure 3 W3 is shown to be greater than W2.

[0054] Furthermore, in order to ensure that the final spatial flow rate discharged is equal, in each outlet portion 54, the width of the air outlet 52 of the air duct at the fourth end of the outlet portion 54 is the same, that is, Figure 3 W4 is shown to be equal to W5.

[0055] In this embodiment, Figure 2 and Figure 4 As shown, since the air outlet 52 of the air guide 5 faces downward and the cold air goes downward, less cold air will enter the battery pack 3 on the upper part of the cabinet frame 2. Therefore, when multiple battery packs 3 are installed in the height direction of the cabinet frame 2, the energy storage cabinet also includes at least one guide plate 8, which is installed on the cabinet 1. The guide plate 8 is located in the cold air channel 6 and close to the air outlet 52. The guide plate 8 is parallel to the width direction of the cabinet frame 2 and tilted downward to guide the cold air to the battery pack 3 on the upper part of the cabinet frame 2 in its width direction, thereby ensuring that the cold air is evenly distributed in the height direction of the cold air channel 6.

[0056] In some embodiments, the energy storage cabinet includes at least two guide plates 8 , and the at least two guide plates 8 are arranged from top to bottom, and each guide plate 8 corresponds to a battery pack 3 at a height position on the cabinet frame 2 .

[0057] The specific implementation process is as follows: the cold air outlet 41 of the heat exchange device 4 blows out cold air, and the cold air reaches the cold air channel 6 on the side of the cold air inlet 31 of the battery pack 3 through the air guide 5, and is evenly distributed in the width direction of the cold air channel 6, and under the action of the guide plate 8, the cold air is evenly distributed in the height direction of the cold air channel 6, so that the cold air is relatively evenly distributed to the cold air inlet 31 of each battery pack 3. Since the cold air channel 6 is relatively closed, the wind pressure becomes larger, and at the same time, the intake of cold air is enhanced under the action of the heat exchange device 4 and the exhaust device 33. After the heat is dissipated by the battery cells inside the battery pack 3, the exhaust device 33 exhausts the hot air to the hot air channel 7 on the side of the hot air outlet 32 ​​of the battery pack 3. The hot air is gathered in the hot air channel 7, and the centrifugal fan of the heat exchange device 4 inhales the hot air through the hot air inlet 42 and subsequently condenses and cools it.

[0058] It should be noted here that the above-mentioned at least one (block) can be one (block), two (blocks) or any number, and similarly, the at least two (blocks) can be two (blocks), three (blocks) or any number.

[0059] By implementing the utility model, the following beneficial effects are achieved:

[0060] The utility model realizes cold and hot isolation air ducts by constructing a relatively closed cold air duct on the cold air inlet side of the battery pack and a hot air duct on the hot air outlet side of the battery pack. At the same time, the relatively closed cold air duct makes the wind pressure on the cold air inlet side of the battery pack large. Combined with the heat exchange device, a single air duct flow direction is formed, and multi-directional air ducts will not appear. The problems of disordered air ducts and low heat dissipation efficiency in the energy storage cabinet are solved, and the power of the heat exchange device can be reduced.

[0061] In addition, the air guides ensure uniform distribution of cold air in the width direction of the cold air channel, and the guide plates ensure uniform distribution of cold air in the height direction of the cold air channel, so that the cold air inhaled by battery packs at different positions in the energy storage cabinet is relatively uniform, solving the problem of uneven heat dissipation of each battery pack.

[0062] It can be understood that the above embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An energy storage cabinet, characterized in that: include: Cabinet (1); A cabinet frame (2), wherein the cabinet frame (2) is installed in the cabinet (1); A battery pack (3), the battery pack (3) being mounted on the cabinet frame (2), the battery pack (3) comprising a cold air inlet (31) and a hot air outlet (32); a relatively closed cold air passage (6) is provided on the cold air inlet (31) side, a hot air passage (7) is provided on the hot air outlet (32) side, the cold air passage (6) and the hot air passage (7) are respectively defined by the battery pack (3), the cabinet frame (2) and the cabinet (1); and A heat exchange device (4), the heat exchange device (4) comprising a cold air outlet (41) and a hot air inlet (42), the hot air inlet (42) being connected to the hot air channel (7), and the cold air outlet (41) being connected to the cold air channel (6).

2. The energy storage cabinet according to claim 1, characterized in that: The cabinet frame (2) is tightly connected to the cabinet (1) and the battery pack (3) respectively, so as to form a relatively closed cold air passage (6).

3. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet also includes: An air guide member (5), the air guide member (5) comprising an air inlet (51) and an air outlet (52), the air inlet (51) being connected to the cold air outlet (41), and the air outlet (52) being connected to the cold air channel (6) and corresponding to the cold air inlet (31).

4. The energy storage cabinet according to claim 3, characterized in that: The air guide member (5) is located at the top of the cabinet frame (2), and the air outlet (52) faces downward.

5. The energy storage cabinet according to claim 3, characterized in that: The air guide member (5) comprises an inlet portion (53) and at least one outlet portion (54); The air inlet (51) at the first end of the inlet portion (53) is connected to the cold air outlet (41), the second end of the inlet portion (53) is connected to the third end of the outlet portion (54), and the air outlet (52) at the fourth end of the outlet portion (54) is connected to the cold air channel (6); The width of the inlet portion (53) gradually increases from the first end to the second end.

6. The energy storage cabinet according to claim 5, characterized in that: At least two battery packs (3) are installed in the width direction of the cabinet frame (2); The air guide member (5) comprises at least two outlet portions (54), and the at least two outlet portions (54) are arranged in parallel in the width direction of the second end of the inlet portion (53), and each of the outlet portions (54) corresponds to one of the battery packs (3) in the width direction of the cabinet frame (2).

7. The energy storage cabinet according to claim 5 or 6, characterized in that: The battery pack (3) comprises at least two cold air inlets (31) in the width direction thereof; At least one partition (55) is provided inside the outlet portion (54), and the partition (55) extends from the third end of the outlet portion (54) toward the fourth end. The partition (55) divides the internal space of the outlet portion (54) into at least two air ducts with the same spatial flow rate, and each air outlet (52) of the air duct corresponds to one of the cold air inlets (31).

8. The energy storage cabinet according to claim 7, characterized in that: In at least two of the outlet portions (54), the width of the air duct at the third end of the outlet portion (54) gradually increases from the middle of the second end of the inlet portion (53) toward the side where the outlet portion (54) is located; and the width of the air outlet (52) of the air duct at the fourth end of the outlet portion (54) is the same.

9. The energy storage cabinet according to claim 3, characterized in that: A plurality of battery packs (3) are installed in the height direction of the cabinet frame (2); The energy storage cabinet also includes: At least one guide plate (8), the guide plate (8) being mounted on the cabinet (1), the guide plate (8) being located in the cold air channel (6) and close to the air outlet (52), the guide plate (8) being parallel to the width direction of the cabinet frame (2) and tilted downward to guide the cold air to the battery pack (3) at the upper part of the cabinet frame (2) in its width direction.

10. The energy storage cabinet according to claim 9, characterized in that: The energy storage cabinet comprises at least two guide plates (8), and the at least two guide plates (8) are arranged from top to bottom, and each guide plate (8) corresponds to the battery pack (3) at a height position on the cabinet frame (2).

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