Direct cooling plate

Abstract

The utility model discloses a direct cooling plate which is arranged in a battery compartment of an energy storage cabinet and located at the bottom of each battery cell, and the direct cooling plate is filled with a refrigerant and used for adjusting the environment temperature of the battery cells. The direct cooling plate comprises a base and an upper cover, a plurality of refrigerant channels are formed in the base, and the upper cover is fixedly connected with the base; the connecting piece is fixed at one end of the base and one end of the upper cover, and the connecting piece is used for connecting a water outlet pipe and a water inlet pipe; the refrigerant channel comprises a first refrigerant channel and a second refrigerant channel; the water outlets of the first refrigerant channel and the second refrigerant channel are the same water outlet; a first water inlet of the first refrigerant channel and a second water inlet of the second refrigerant channel are located on the two sides of the water outlet respectively. According to the utility model, the two symmetrically distributed refrigerant channels are arranged on the base, so that multi-path shunting of multi-stage division is realized, the whole cold plate is filled with heat dissipation media, the outlets and the inlets of the refrigerant channels are adjacently arranged, and the two water inlet channels of the two refrigerant channels are distributed on the two sides of the cold plate, so that the moderate temperature of the two sides of the direct cold plate is ensured, and the heat dissipation efficiency of the direct cold plate is improved. Therefore, the uniformity of the overall temperature of the cold plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a direct cooling plate in an energy storage air conditioning system. Background Art

[0002] Liquid cooling technology is generally divided into three categories according to the general classification method of liquid cooling technology: cold plate liquid cooling, immersion liquid cooling and spray liquid cooling. The main difference between the three liquid cooling methods is reflected in the different ways of cooling the server. Cold plate liquid cooling means that the heat of the components fixed on the cold plate is taken away by the liquid flowing through the cold plate. It can accurately cool the main heat sources such as CPU and memory to achieve the purpose of heat dissipation. Cold plate liquid cooling is the most commonly used because of its obvious advantages in cost and maintainability. Research on the uniformity of cold plate heat dissipation is particularly important for the development of liquid cooling technology.

[0003] In the prior art, the direct cooling plate usually flows from one side to the other side. The inlet temperature and outlet temperature of this flow path are greatly different, and the uniformity of the temperature of the entire cooling plate cannot be guaranteed.

[0004] In summary, it is now necessary to provide an air conditioning system that can solve the above technical problems. Utility Model Content

[0005] The utility model provides a direct cooling plate, which can solve the technical problem of uneven temperature of the cooling plate in the prior art. The specific scheme is as follows:

[0006] A direct cooling plate is provided in a battery compartment of an energy storage cabinet and is located at the bottom of each battery core. The direct cooling plate is filled with a refrigerant for adjusting the ambient temperature of the battery core. The direct cooling plate comprises:

[0007] The base has multiple refrigerant channels.

[0008] An upper cover, which is fixedly connected to the base;

[0009] A connecting piece, which is fixed to one end of the base and the upper cover, and is used to connect the water outlet pipe and the water inlet pipe;

[0010] The refrigerant channel includes a first refrigerant channel and a second refrigerant channel;

[0011] The water outlet of the first refrigerant channel and the water outlet of the second refrigerant channel are the same water outlet;

[0012] The first water inlet of the first refrigerant channel and the second water inlet of the second refrigerant channel are respectively located on both sides of the water outlet.

[0013] In some embodiments of the present invention,

[0014] The first refrigerant channel and the second refrigerant channel are axially symmetrically arranged, and the first refrigerant channel includes a first water inlet, a first flow blocking portion, a first circulation portion, a first water outlet, and a second flow blocking portion; wherein the first water inlet is located at the edge of the base, and the first flow blocking portion is located at the center of the base.

[0015] In some embodiments of the present invention, along the edge of the base pointing toward the center of the base, the first refrigerant channel includes a first water inlet portion, a first water outlet portion, a second flow blocking portion, a first circulation portion and a first flow blocking portion.

[0016] In some embodiments of the utility model, the water outlet end of the first water inlet part is divided into two branches, one branch is the first flow blocking part, and the other branch is the first circulation part; the water outlet end of the first water outlet part is divided into two branches, one branch is connected to the water outlet, and the other branch is the second flow blocking part.

[0017] In some embodiments of the present invention, for the first refrigerant channel, the first water inlet is located at the edge of the refrigerant channel; the first water outlet is located at the center of the first refrigerant channel;

[0018] The first water inlet portion, the first circulation portion and the second flow blocking portion each include at least two branches.

[0019] In some embodiments of the utility model, the two water inlets are arranged adjacent to the water outlet, and the water outlet is located between the two water inlets; the upper cover is provided with three through holes, which are respectively arranged corresponding to the two water inlets and one water outlet.

[0020] In some embodiments of the present invention,

[0021] The connecting piece comprises a water inlet through hole and a water outlet through hole; the bottom of the water outlet through hole is connected to the water outlet; the bottom of the water inlet through hole is provided with a groove, and both ends of the groove are connected to the water inlet.

[0022] In some embodiments of the present invention,

[0023] The connecting member includes a first connecting part and a second connecting part; the first connecting part includes two connecting holes, and the two connecting holes are respectively connected to the water inlet pipe and the water outlet pipe; the second connecting part includes three connecting holes, and the three connecting holes are respectively connected to two water inlets and one water outlet.

[0024] In some embodiments of the present invention,

[0025] The water inlet end and the water outlet end of the first circulation part are located on the same side of the base; the water inlet end and the water outlet end of the second flow blocking part are located on the same side of the base.

[0026] In some embodiments of the present utility model, a direct cooling unit is provided, comprising a housing, a compressor arranged in the housing, a heat exchanger, a heat regenerator, an electric control box, a heat dissipation fan, and a direct cooling plate arranged in an energy storage cabinet; the direct cooling plate adopts the above-mentioned direct cooling plate;

[0027] The compressor, the heat exchanger and the regenerator are connected in sequence through pipelines to form a refrigerant circulation loop; the regenerator has a first channel and a second channel, the second port of the first channel is connected to the heat exchanger, and the second port of the second channel is connected to the compressor suction port, and multiple direct cooling plate parallel branches are connected between the first port of the first channel and the first port of the second channel of the regenerator; each direct cooling plate parallel branch is connected to a direct cooling plate and electronic expansion valves respectively located at the refrigerant inlet and refrigerant outlet of the direct cooling plate, and the direct cooling plates are arranged one by one with the battery PACK.

[0028] The utility model has the following beneficial effects:

[0029] The utility model realizes multi-level branching and multi-way flow diversion by setting two symmetrically distributed refrigerant channels on the base, so that the heat dissipation medium fills the entire cold plate, the outlet and the inlet of the refrigerant channel are adjacent to each other, and the two water inlet channels of the two refrigerant channels are distributed on both sides of the cold plate, ensuring the temperature moderation on both sides of the direct cooling plate, thereby ensuring the uniformity of the overall temperature of the cold plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram showing the installation position of a direct cooling plate according to some embodiments is shown;

[0031] Figure 2 A schematic diagram of the structure of a direct cooling plate according to some embodiments is shown;

[0032] Figure 3 A schematic diagram of the structure decomposition of a direct cooling plate according to some embodiments is shown;

[0033] Figure 4 A schematic structural diagram of the base according to some embodiments is shown;

[0034] Figure 5 shows an enlarged view of portion A of the base according to some embodiments;

[0035] Figure 6 shows an enlarged view of portion B of the base according to some embodiments;

[0036] Figure 7 shows a schematic structural diagram of the first refrigerant channel according to some embodiments;

[0037] Figure 8 The structure of the connecting member according to some embodiments is shown. Figure 1 ;

[0038] Fig. 9 The structure of the connecting member according to some embodiments is shown. Figure 2 ;

[0039] Fig.10 The structure of the connecting member according to some embodiments is shown. Figure 3 ;

[0040] Fig.11 A schematic diagram of the flow direction of the refrigerant in the first refrigerant channel according to some embodiments is shown.

[0041] Reference numerals:

[0042] 100, base; 110, first refrigerant channel; 111, first water inlet; 112, first flow resistance; 113, first circulation; 114, first water outlet; 115, second flow resistance; 120, second refrigerant channel; 121, second water inlet; 122, third flow resistance; 123, second circulation; 124, second water outlet; 125, fourth flow resistance; 130, first water inlet; 140, second water inlet; 150, water outlet; 200, upper cover; 300, connector; 310, water inlet through hole; 320, water outlet through hole; 330, groove; 340, first connecting hole; 350, second connecting hole; 360, third connecting hole; 370, fourth connecting hole; 380, fifth connecting hole; 400, battery core; 500, water inlet pipe; 600, water outlet pipe. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an electrical connection; it can be a direct connection, or it can be 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 invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0049] The direct cooling plate of the utility model is used in the energy storage cabinet. The temperature regulation in the energy storage cabinet is realized by the direct cooling unit. The direct cooling unit includes a shell and a compressor, a heat exchanger (condenser), a heat regenerator, an electric control box and a heat dissipation fan arranged in the shell. The front side plate of the shell is provided with a return air port, the rear side plate is provided with an air outlet, and the heat dissipation fan is arranged between the heat exchanger and the air outlet.

[0050] The compressor, heat exchanger and regenerator are connected in sequence through pipelines to form a refrigerant circulation loop. The regenerator has a first channel and a second channel, wherein the second port of the first channel is connected to the heat exchanger, and the second port of the second channel is connected to the compressor suction port. A plurality of battery direct cooling plate parallel branches are connected between the first port of the first channel and the first port of the second channel of the regenerator. Each battery direct cooling plate parallel branch is connected to a battery direct cooling plate and electronic expansion valves respectively located at the refrigerant inlet and refrigerant outlet of the battery direct cooling plate. The battery direct cooling plates are arranged one-to-one with the battery PACKs;

[0051] An oil separator and a liquid storage tank may also be provided on the refrigerant circulation loop, and the oil separator and the liquid storage tank are also provided in the unit casing.

[0052] When the direct cooling module is cooling, the refrigerant is compressed into high-temperature and high-pressure gas by the compressor, returned to the oil through the oil separator, and then to the heat exchanger. It is condensed and dissipated by the cooling fan to become medium-temperature and high-pressure liquid refrigerant, and enters the first channel of the regenerator. After further supercooling through the regenerator, it enters multiple parallel branches of battery direct cooling plates. The electronic expansion valve at the refrigerant inlet of each battery direct cooling plate (that is, the electronic expansion valve on the right side of the figure) is fully opened, and heat is exchanged through each battery direct cooling plate to cool each battery PACK; then it passes through the electronic expansion valve at the refrigerant outlet of the battery direct cooling plate (that is, the electronic expansion valve on the left side of the figure) to throttle into a low-temperature and low-pressure gas-liquid two-phase refrigerant, enters the second channel of the regenerator, is superheated into a gaseous refrigerant through the regenerator, and returns to the compressor through the liquid storage device to complete the refrigeration cycle.

[0053] In order to solve the problem of uneven temperature heat dissipation caused by setting the water inlet and outlet of the direct cooling plate at both ends in the prior art; Figure 1-Figure 3As shown, the utility model provides a direct cooling plate, which is arranged in the battery compartment of the energy storage cabinet and located at the bottom of each battery core 400. The direct cooling plate is filled with a refrigerant to adjust the ambient temperature of the battery core 400; the direct cooling plate includes:

[0054] The base 100 is provided with a plurality of refrigerant channels.

[0055] An upper cover 200, which is fixedly connected to the base 100;

[0056] A connecting member 300, which is fixed to one end of the base 100 and the upper cover 200, and the connecting member 300 is used to connect the water outlet pipe 600 and the water inlet pipe 500;

[0057] The refrigerant channel includes a first refrigerant channel 110 and a second refrigerant channel 120;

[0058] The water outlet 150 of the first refrigerant channel 110 and the second refrigerant channel 120 is the same water outlet 150;

[0059] The first water inlet 130 of the first refrigerant channel 110 and the second water inlet 140 of the second refrigerant channel 120 are respectively located on two sides of the water outlet 150 .

[0060] During use, the refrigerant enters the first refrigerant channel 110 and the second refrigerant channel 120 on the base 100 through the first water inlet 130 and the second water inlet 140 at the same time. Because the two water inlets and the water outlet 150 are arranged adjacent to each other, after the refrigerant enters each refrigerant channel, it flows evenly through the base 100 and then flows out from the water outlet 150, thereby realizing rapid circulation of the refrigerant, increasing the circulation speed of the refrigerant, and thereby increasing the cooling speed of the refrigerant.

[0061] In some embodiments of the present invention, referring to Figure 4 As shown, the first refrigerant channel 110 and the second refrigerant channel 120 are circulation channels arranged on the base 100, and the upper cover 200 and the base 100 can be fixed by welding or by means of bolts and sealing rings, so that each refrigerant channel forms a closed space to ensure that each flow path does not interfere with each other and is well sealed.

[0062] In some embodiments of the present invention, the first refrigerant channel 110 and the second refrigerant channel 120 are axially symmetrically arranged, and the first refrigerant channel 110 includes a first water inlet portion 111, a first flow blocking portion 112, a first circulation portion 113, a first water outlet portion 114 and a second flow blocking portion 115; wherein, the first water inlet portion 111 is located at the edge of the base 100, and the first flow blocking portion 112 is located at the center of the base 100.

[0063] Similarly, the second refrigerant channel 120 includes a second water inlet 121, a third flow blocking portion 122, a second circulation portion 123, a second water outlet and a fourth flow blocking portion 125; wherein the second water inlet 121 is located at the edge of the base 100, and the third flow blocking portion 122 is located at the center of the base 100.

[0064] That is, when the refrigerant enters the first refrigerant channel 110 and the second refrigerant channel 120 respectively through the first water inlet 130 and the second water inlet 140 at the same time, it first goes along the outer side of the base 100 to the side opposite to each water inlet, then enters the center of the base 100, and then flows in each refrigerant channel to dissipate heat. The setting of this refrigerant channel can make the refrigerant in the direct cooling plate circulate faster, so as to achieve faster cooling.

[0065] In some embodiments of the present invention, referring to Figure 7 As shown, for the first refrigerant channel 110 , along the edge of the base 100 pointing to the center direction of the base 100 , the first refrigerant channel 110 includes a first water inlet portion 111 , a first water outlet portion 114 , a second flow blocking portion 115 , a first circulation portion 113 and a first flow blocking portion 112 .

[0066] In some embodiments of the present invention, the water outlet end of the first water inlet part 111 is divided into two branches, one of which is the first flow blocking part 112, and the other is the first circulation part 113; the water outlet end of the first water outlet part 114 is divided into two branches, one of which is connected to the water outlet 150, and the other is the second flow blocking part 115.

[0067] The water outlet end of the first water inlet part 111 is connected to the water inlet end of the first flow blocking part 112 and the water inlet end of the first circulation part 113; the water outlet end of the first circulation part 113 is connected to the water inlet end of the first water outlet part 114; the water outlet end of the first water outlet part 114 is respectively connected to the water outlet 150 and the water inlet end of the second flow blocking part 115.

[0068] In some embodiments of the present invention, referring to Figure 5 As shown, the blocking end of the first blocking portion 112 is disposed adjacent to the blocking end of the second blocking portion 115 .

[0069] In some embodiments of the present invention,

[0070] The water inlet and outlet of the first circulation part 113 are located on the same side of the base 100 ; the water inlet and outlet of the second flow blocking part 115 are located on the same side of the base 100 .

[0071] For ease of description, Figure 7 For example, in the first refrigerant channel 110, the position where the first water inlet 130 is set is defined as the upper side of the first refrigerant channel 110, the side close to the first water inlet 111 is the outer side of the first refrigerant channel 110, the side opposite to the setting position of the first water inlet 130 is the lower side of the first refrigerant channel 110, and the edge close to the first flow blocking portion 112 is the inner side of the first refrigerant channel 110, and the inner side is the center position of the direct cooling plate.

[0072] Reference Fig.11 As shown, the flow path of the refrigerant in the first refrigerant channel 110 is: entering the first water inlet part 111 from the first water inlet 130, and entering the first flow resistance part 112 and the first circulation part 113 at the water outlet end of the first water inlet part 111 respectively, the water outlet end of the first water inlet part 111 is located at the lower side of the first refrigerant channel 110, and the refrigerant reaches the upper side of the first refrigerant channel 110 after entering the first flow resistance part 112; the refrigerant first flows from the lower side to the upper side in the first circulation part 113, and then returns from the upper side to the water outlet end of the first circulation part 113 on the lower side. After passing through the first circulation part 113, the refrigerant reaches the first water outlet part 114. After flowing to the water outlet end of the first water outlet part 114 located on the upper side, a part of the refrigerant flows out of the direct cooling plate through the water outlet 150, and the other part of the refrigerant enters the second flow blocking part 115. The refrigerant takes a U-shaped path in the second flow blocking part 115 again and reaches the flow blocking end close to the first flow blocking part 112.

[0073] The second refrigerant channel 120 points along the edge of the base 100 toward the center of the base 100 , and includes a second water inlet 121 , a second water outlet 124 , a fourth flow blocking portion 125 , a second circulation portion 123 and a third flow blocking portion 122 .

[0074] The flow direction of the refrigerant in the second refrigerant channel 120 is symmetrical to the flow direction of the first refrigerant channel 110 .

[0075] In some embodiments of the present invention, for the first refrigerant channel 110 and the second refrigerant channel 120, their respective water inlets are arranged at the edge of the refrigerant channel; and their respective water outlets are arranged at the center of the direct cooling plate; so that the refrigerant can flow from both sides of the direct cooling plate to the middle at the same time, thereby maximizing the temperature uniformity on the direct cooling plate.

[0076] In some embodiments of the present invention, for the first refrigerant channel 110, refer to Figure 7As shown, the first water inlet portion 111, the first circulation portion 113 and the second flow blocking portion 115 each include at least two branches.

[0077] Specifically, in this embodiment, the refrigerant is divided into a first water inlet portion 111 of two branches after passing through the first water inlet 130, and each branch is divided into two passages in the length direction of the channel. On the lower side of the first refrigerant channel 110, the first water inlet portions 111 of the two branches merge into one channel; similarly, in the first refrigerant channel 110, each branch is provided with two flow channels; wherein the first circulation portion 113 and the second flow blocking portion 115 each include at least two branches, and two flow channels are arranged in each branch.

[0078] In some embodiments of the utility model, the two water inlets are arranged adjacent to the water outlet 150, and the water outlet 150 is located between the two water inlets; the upper cover 200 is provided with three through holes, which are respectively arranged corresponding to the two water inlets and one water outlet 150.

[0079] In some embodiments, the same flow channel as that on the base 100 can be drawn on the surface of the upper cover 200 that is connected to the base 100, or the upper cover 200 can be drawn on the surface of the upper cover 200 that is connected to the base 100. Figure 2 As shown, its surface is smooth.

[0080] In some embodiments of the present invention, referring to Figure 8-Figure 10 As shown, the connecting member 300 can be fixed to the top surface of the upper cover 200 by welding or by combining bolts and sealing rings, specifically fixed at the positions of each water inlet and outlet 150, to ensure good sealing and non-interference between the water inlet and outlet 150.

[0081] Reference Fig. 9 and Fig.10 As shown, the connecting member 300 includes a water inlet through hole 310 and a water outlet through hole 320; the bottom of the water outlet through hole 320 is connected to the water outlet 150; a groove 330 is provided at the bottom of the water inlet through hole 310, and both ends of the groove 330 are connected to the water inlet.

[0082] During use, the refrigerant reaches the groove 330 after passing through the water inlet hole 310 and enters the first water inlet 130 of the first refrigerant channel 110 and the second water inlet 140 of the second refrigerant channel 120 respectively.

[0083] In some embodiments of the present invention,

[0084] Reference Figure 8As shown, the connecting member 300 includes a first connecting part and a second connecting part; the first connecting part includes two connecting holes, and the two connecting holes are respectively connected to the water inlet pipe 500 and the water outlet pipe 600; that is, the first connecting part includes a first connecting hole 340 and a second connecting hole 350; the first connecting hole 340 can be connected to the water inlet pipe 500, and the second connecting hole 350 can be connected to the water outlet pipe 600.

[0085] The second connection portion includes three connection holes, and the three connection holes are respectively connected to two water inlets and one water outlet 150 .

[0086] Specifically, the second connection portion includes a third connection hole 360 ​​, a fourth connection hole 370 and a fifth connection hole 380 ; the third connection hole 360 ​​can be connected to the first water inlet 130 , the fifth connection hole 380 can be connected to the second water inlet 140 , and the fourth connection hole 370 can be connected to the water outlet 150 .

[0087] The water inlet channel and the water outlet channel do not interfere with each other.

[0088] In some embodiments of the present invention,

[0089] A direct cooling unit is provided, comprising a housing, a compressor arranged in the housing, a heat exchanger, a heat regenerator, an electric control box, a heat dissipation fan, and a direct cooling plate arranged in an energy storage cabinet; the direct cooling plate is the above-mentioned direct cooling plate structure;

[0090] The compressor, the heat exchanger and the regenerator are connected in sequence through pipelines to form a refrigerant circulation loop; the regenerator has a first channel and a second channel, the second port of the first channel is connected to the heat exchanger, and the second port of the second channel is connected to the compressor suction port, and multiple direct cooling plate parallel branches are connected between the first port of the first channel and the first port of the second channel of the regenerator; each direct cooling plate parallel branch is connected to a direct cooling plate and electronic expansion valves respectively located at the refrigerant inlet and refrigerant outlet of the direct cooling plate, and the direct cooling plates are arranged one by one with the battery PACK.

[0091] The utility model has the following beneficial effects:

[0092] The utility model realizes multi-level branching and multi-way flow diversion by setting two symmetrically distributed refrigerant channels on the base 100, so that the heat dissipation medium fills the entire cold plate. The outlet and the inlet of the refrigerant channel are adjacent to each other, and the two water inlet channels of the two refrigerant channels are distributed on both sides of the cold plate, ensuring the temperature moderation on both sides of the direct cooling plate, thereby ensuring the uniformity of the overall temperature of the cold plate.

[0093] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0094] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A direct cooling plate, which is arranged in the battery compartment of the energy storage cabinet and located at the bottom of each battery core. The direct cooling plate is filled with a refrigerant to adjust the ambient temperature of the battery core; the direct cooling plate includes: The base has multiple refrigerant channels. An upper cover, which is fixedly connected to the base; A connecting piece, which is fixed to one end of the base and the upper cover, and is used to connect the water outlet pipe and the water inlet pipe; Characterized in that the refrigerant channel includes a first refrigerant channel and a second refrigerant channel; The water outlet of the first refrigerant channel and the water outlet of the second refrigerant channel are the same water outlet; The first water inlet of the first refrigerant channel and the second water inlet of the second refrigerant channel are respectively located on both sides of the water outlet.

2. The direct cooling plate according to claim 1, characterized in that: The first refrigerant channel and the second refrigerant channel are axially symmetrically arranged, and the first refrigerant channel includes a first water inlet, a first flow blocking portion, a first circulation portion, a first water outlet, and a second flow blocking portion; wherein the first water inlet is located at the edge of the base, and the first flow blocking portion is located at the center of the base.

3. The direct cooling plate according to claim 2, characterized in that: Along the edge of the base pointing to the center direction of the base, the first refrigerant channel includes a first water inlet portion, a first water outlet portion, a second flow blocking portion, a first circulation portion and a first flow blocking portion.

4. The direct cooling plate according to claim 2, characterized in that: The water outlet end of the first water inlet is divided into two branches, one of which is the first flow blocking part, and the other is the first circulation part; the water outlet end of the first water outlet is divided into two branches, one of which is connected to the water outlet, and the other is the second flow blocking part.

5. The direct cooling plate according to claim 2, characterized in that: For the first refrigerant channel, the first water inlet is located at the edge of the refrigerant channel; the first water outlet is located at the center of the first refrigerant channel; The first water inlet portion, the first circulation portion and the second flow blocking portion each include at least two branches.

6. The direct cooling plate according to claim 1, characterized in that: The two water inlets are arranged adjacent to the water outlet, and the water outlet is located between the two water inlets; the upper cover is provided with three through holes, which are respectively arranged corresponding to the two water inlets and one water outlet.

7. The direct cooling plate according to claim 1, characterized in that: The connecting piece comprises a water inlet through hole and a water outlet through hole; the bottom of the water outlet through hole is connected to the water outlet; the bottom of the water inlet through hole is provided with a groove, and both ends of the groove are connected to the water inlet.

8. The direct cooling plate according to claim 1, characterized in that: The connecting member includes a first connecting part and a second connecting part; the first connecting part includes two connecting holes, and the two connecting holes are respectively connected to the water inlet pipe and the water outlet pipe; the second connecting part includes three connecting holes, and the three connecting holes are respectively connected to two water inlets and one water outlet.

9. The direct cooling plate according to claim 2, characterized in that: The water inlet end and the water outlet end of the first circulation part are located on the same side of the base; the water inlet end and the water outlet end of the second flow blocking part are located on the same side of the base.

10. A direct cooling unit, comprising a housing, a compressor arranged in the housing, a heat exchanger, a heat regenerator, an electric control box, a heat dissipation fan, and a direct cooling plate arranged in an energy storage cabinet; It is characterized in that The direct cooling plate is the direct cooling plate described in any one of claims 1 to 9; The compressor, the heat exchanger and the regenerator are connected in sequence through pipelines to form a refrigerant circulation loop; the regenerator has a first channel and a second channel, the second port of the first channel is connected to the heat exchanger, and the second port of the second channel is connected to the compressor suction port, and multiple direct cooling plate parallel branches are connected between the first port of the first channel and the first port of the second channel of the regenerator; each direct cooling plate parallel branch is connected to a direct cooling plate and electronic expansion valves respectively located at the refrigerant inlet and refrigerant outlet of the direct cooling plate, and the direct cooling plates are arranged one by one with the battery PACK.

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