Storage battery capable of efficiently dissipating heat and lithium battery module

Abstract

The utility model provides an efficient heat dissipation storage battery and a lithium battery module. The efficient heat dissipation storage battery comprises a cabinet body, a plurality of battery assemblies, a controller and a cooling liquid driving part, the battery assemblies are sequentially installed in the cabinet body at intervals, the controller and the cooling liquid driving part are both installed in the cabinet body, the cooling liquid driving part is electrically connected with the controller, and the cooling liquid driving part is electrically connected with the controller. Each battery assembly comprises a liquid cooling box, a plurality of battery cells, a temperature sensor and an exhaust fan, the plurality of battery cells are installed in the liquid cooling box, the liquid cooling box is provided with heat dissipation holes, the temperature sensor and the exhaust fan are installed in the liquid cooling box, the temperature sensor is used for detecting the temperature in the liquid cooling box, and the exhaust fan is used for exhausting the heat dissipation holes in the liquid cooling box. The liquid cooling box is provided with a plurality of heat dissipation holes, the exhaust fan is arranged towards the heat dissipation holes so as to discharge heat in the liquid cooling box, the temperature sensor and the exhaust fan are electrically connected with the controller, the liquid cooling box is connected with the cooling liquid driving part, and the cooling liquid driving part is used for conveying cooling liquid to the liquid cooling box.

Description

Technical Field

[0001] The present disclosure relates to the field of battery modules, and particularly to a storage battery and a lithium battery module with efficient heat dissipation. Background Art

[0002] A energy storage battery box, especially an energy storage battery container, is a device that encapsulates a large-capacity energy storage battery assembly in a container, which combines the energy storage function of the energy storage battery with the portability and standardization characteristics of the container. Since there are multiple battery packs in the energy storage battery box, a large amount of heat is generated when the battery packs are working, making the temperature of the battery box relatively high. If the battery is at a relatively high temperature for a long time, it is likely to reduce the service life of the battery.

[0003] To solve the above problems, Chinese Patent with application number CN202211074068.5 discloses an energy storage battery cabinet, which includes a cabinet body and multiple groups of battery modules arranged in an array in the cabinet body. The multiple groups of battery modules are connected in series in sequence, and adjacent battery modules are arranged at intervals; a module suspension, which is arranged in the cabinet body; an installation structure, which is arranged between the battery module and the module suspension; a heat dissipation structure, which is arranged on the cabinet body.

[0004] However, the above structural design of the energy storage battery cabinet has the following problems in use:

[0005] In the above energy storage battery cabinet, multiple battery modules are arranged at intervals in the cabinet body, and a heat dissipation structure is provided at the bottom of the cabinet body. The heat dissipation structure includes an air inlet hood and an air inlet mesh hole, and an exhaust fan blows cold air towards the air inlet hood and the air inlet mesh hole to dissipate heat from multiple battery modules. However, since the exhaust fan is located at the bottom of the cabinet body and the exhaust fan is not arranged corresponding to each of the multiple battery modules one by one, that is, the exhaust fan cannot dissipate heat from the battery modules in a targeted manner. Thus, the battery modules located at the top of the cabinet body are far from the exhaust fan, and the heat dissipation effect is poor.

[0006] Therefore, there is an urgent need for a battery device that can dissipate heat from multiple battery modules in a targeted manner and has a better heat dissipation effect. Utility Model Content

[0007] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide a storage battery and a lithium battery module with efficient heat dissipation that can dissipate heat from multiple battery modules in a targeted manner and has a better heat dissipation effect.

[0008] The purpose of the present disclosure is achieved by the following technical solutions:

[0009] A storage battery with efficient heat dissipation, comprising:

[0010] Comprising a cabinet body and multiple battery components, the multiple battery components are sequentially and spacedly installed in the cabinet body,

[0011] The battery with efficient heat dissipation further includes a controller and a coolant driving member. Both the controller and the coolant driving member are installed in the cabinet. The coolant driving member is electrically connected to the controller. Each battery assembly includes a liquid cooling box, a plurality of battery cells, a temperature sensor, and an exhaust fan. The plurality of battery cells are installed in the liquid cooling box. The liquid cooling box is provided with heat dissipation holes. The temperature sensor and the exhaust fan are both installed in the liquid cooling box. The temperature sensor is used to detect the temperature inside the liquid cooling box. The exhaust fan is arranged towards the heat dissipation holes to discharge the heat inside the liquid cooling box. The temperature sensor and the exhaust fan are both electrically connected to the controller. The liquid cooling box is connected to the coolant driving member. The coolant driving member is used to transport coolant to the liquid cooling box.

[0012] In one embodiment, the number of the heat dissipation holes is multiple, and the multiple heat dissipation holes are spaced apart on the liquid cooling box.

[0013] In one embodiment, the liquid cooling box includes a cooling bottom plate, a top plate, and a box body. The box body is connected to the cooling bottom plate, and the top plate covers the box body. The cooling bottom plate is provided with a liquid inlet and a liquid outlet which are spaced apart. The liquid inlet and the liquid outlet are respectively connected to the coolant driving member. The cooling bottom plate is connected to the battery cells.

[0014] In one embodiment, the cooling bottom plate and the battery cells are connected by thermal conductive adhesive.

[0015] In one embodiment, the coolant driving member is a liquid pump.

[0016] In one embodiment, the cabinet is provided with a plurality of spaced apart air outlet holes, and the air outlet holes are arranged opposite to the heat dissipation holes.

[0017] In one embodiment, a plurality of spaced apart mounting brackets are provided in the cabinet, and each mounting bracket abuts against the corresponding liquid cooling box.

[0018] In one embodiment, the cabinet further includes fasteners. The bracket is provided with a first connection hole, and the liquid cooling box is provided with a second connection hole. The fasteners sequentially pass through the first connection hole and the second connection hole to fix the mounting bracket and the liquid cooling box.

[0019] In one embodiment, the plurality of battery assemblies are arranged in an array along the vertical direction of the cabinet.

[0020] A lithium battery module includes the battery with efficient heat dissipation according to any one of the above embodiments.

[0021] Compared with the prior art, the present disclosure has at least the following advantages:

[0022] For the above-mentioned storage battery with efficient heat dissipation, a plurality of battery modules are installed in the cabinet at intervals, and the controller and the coolant driving member are also installed in the cabinet. A temperature sensor and an exhaust fan are installed in the liquid cooling box of each battery module. When the temperature sensor detects that the temperature in the corresponding liquid cooling box is abnormal, the controller controls the coolant driving member to deliver the coolant to the liquid cooling box, and at the same time, the controller controls the exhaust fan to start, so that the temperature of the corresponding liquid cooling box can be rapidly reduced. In this way, targeted heat dissipation can be carried out for multiple battery modules, improving the heat dissipation effect and efficiency. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of a storage battery with efficient heat dissipation according to an embodiment;

[0025] Figure 2 For Figure 1 Another schematic structural diagram of the storage battery with efficient heat dissipation shown;

[0026] Figure 3 For Figure 1 Another schematic structural diagram of the storage battery with efficient heat dissipation shown. Detailed Description of the Embodiments

[0027] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms used in the specification of this disclosure herein are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The present disclosure provides a storage battery with efficient heat dissipation, including a cabinet body, a plurality of battery modules, a controller, and a coolant driving member. The plurality of battery modules are sequentially and spacedly installed in the cabinet body. The controller and the coolant driving member are both installed in the cabinet body. The coolant driving member is electrically connected to the controller. Each battery module includes a liquid cooling box, a plurality of battery cells, a temperature sensor, and an exhaust fan. The plurality of battery cells are installed in the liquid cooling box. The liquid cooling box is provided with heat dissipation holes. The temperature sensor and the exhaust fan are both installed on the liquid cooling box. The temperature sensor is used to detect the temperature inside the liquid cooling box. The exhaust fan is arranged towards the heat dissipation holes to discharge the heat inside the liquid cooling box. The temperature sensor and the exhaust fan are both electrically connected to the controller. The liquid cooling box is connected to the coolant driving member. The coolant driving member is used to transport coolant to the liquid cooling box.

[0031] In the above storage battery with efficient heat dissipation, a plurality of spaced battery modules are installed in the cabinet body, and the controller and the coolant driving member are also installed in the cabinet body. A temperature sensor and an exhaust fan are installed on the liquid cooling box of each battery module. When the temperature sensor detects that the temperature inside the corresponding liquid cooling box is abnormal, the controller controls the coolant driving member to transport coolant to the liquid cooling box, and at the same time, the controller controls the exhaust fan to start, so that the temperature of the corresponding liquid cooling box can be rapidly reduced. In this way, targeted heat dissipation can be carried out for a plurality of battery modules, improving the heat dissipation effect and efficiency.

[0032] To better understand the technical solutions and beneficial effects of the present disclosure, the following further describes the present disclosure in detail with specific embodiments:

[0033] As Figures 1 to 3As shown in the figure, a high-efficiency heat-dissipating storage battery 10 of an embodiment includes a cabinet 100, a plurality of battery modules 200, a controller 300, and a coolant driving member 400. The plurality of battery modules 200 are sequentially and spacedly installed in the cabinet 100. The controller 300 and the coolant driving member 400 are both installed in the cabinet 100. The coolant driving member 400 is electrically connected to the controller 300. Each battery module 200 includes a liquid cooling box 210, a plurality of battery cells 220, a temperature sensor 230, and an exhaust fan 240. The plurality of battery cells 220 are installed in the liquid cooling box 210. The liquid cooling box 210 is provided with heat dissipation holes 210a. The temperature sensor 230 and the exhaust fan 240 are both installed in the liquid cooling box 210. The temperature sensor 230 is used to detect the temperature inside the liquid cooling box 210. The exhaust fan 240 is arranged facing the heat dissipation holes 210a to discharge the heat inside the liquid cooling box 210. The temperature sensor 230 and the exhaust fan 240 are both electrically connected to the controller 300. The liquid cooling box 210 is connected to the coolant driving member 400. The coolant driving member 400 is used to transport coolant to the liquid cooling box 210.

[0034] In this embodiment, a plurality of battery modules 200 are spacedly arranged in the cabinet 100. Each battery module 200 includes a liquid cooling box 210, a plurality of battery cells 220, a temperature sensor 230, and an exhaust fan 240. The plurality of battery cells 220 are installed in the liquid cooling box 210. The temperature sensor 230 and the exhaust fan 240 are both installed in the liquid cooling box 210. The liquid cooling box 210 is connected to the coolant driving member 400. The temperature sensor 230, the coolant driving member 400, and the exhaust fan 240 are all electrically connected to the controller 300. When the temperature sensor 230 detects that the temperature inside the corresponding liquid cooling box 210 is abnormal, that is, when the temperature of the liquid cooling box 210 is too high at this time, the temperature sensor 230 releases a signal to the controller 300. At this time, the controller 300 controls the coolant driving member 400 to start to transport coolant into the liquid cooling box 210, and makes the exhaust fan 240 start to blow the heat inside the liquid cooling box 210 to the heat dissipation holes 210a. In this way, the heat inside the liquid cooling box 210 drops rapidly through two heat dissipation paths, and the battery module 200 with too high temperature can be cooled specifically, improving the heat dissipation effect and efficiency.

[0035] It should be noted that the control method of the controller 300 for the coolant driving member 400 and the exhaust fan 240 belongs to the prior art and is not within the protection scope of this application. This application only protects the connection relationship and position relationship between the various structures of the high-efficiency heat-dissipating storage battery 10.

[0036] The above-mentioned battery 10 with efficient heat dissipation has a plurality of battery modules 200 installed in the cabinet body 100 at intervals. The controller 300 and the coolant driving member 400 are also installed in the cabinet body 100. Temperature sensors 230 and exhaust fans 240 are installed on each liquid cooling box 210 of each battery module 200. When the temperature sensor 230 detects that the temperature in the corresponding liquid cooling box 210 is abnormal, the controller 300 controls the coolant driving member 400 to deliver the coolant to the liquid cooling box 210. At the same time, the controller 300 controls the exhaust fan 240 to start, so that the temperature of the corresponding liquid cooling box 210 can be rapidly reduced. In this way, targeted heat dissipation can be carried out for a plurality of battery modules 200, improving the heat dissipation effect and efficiency.

[0037] As Figure 3 shown, in one embodiment, the number of the heat dissipation holes 210a is multiple, and the multiple heat dissipation holes 210a are arranged at intervals on the liquid cooling box 210. It can be understood that the multiple heat dissipation holes 210a are arranged at intervals on one side surface of the liquid cooling box 210, and the exhaust fan 240 is arranged on the other side surface of the liquid cooling box 210, so that the exhaust fan 240 blows the heat to the multiple heat dissipation holes 210a, making the heat dissipation more efficient.

[0038] As Figure 2 and Figure 3 shown, in one embodiment, the liquid cooling box 210 includes a cooling bottom plate 211, a top plate 212 and a box body 213. The box body 213 is connected to the cooling bottom plate 211, and the top plate 212 covers the box body 213. The cooling bottom plate 211 is provided with an inlet 211a and an outlet 211b which are arranged at intervals. The inlet 211a and the outlet 211b are respectively connected to the coolant driving member 400, and the cooling bottom plate 211 is connected to the battery cell 220. In this embodiment, a liquid passing channel is provided in the cooling bottom plate 211. The coolant driving member 400 is respectively connected to the inlet 211a and the outlet 211b of the cooling bottom plate 211, so that the coolant driving member 400 and the cooling bottom plate 211 form a circulation path. When the battery cell 220 on the cooling bottom plate 211 is overheated, the coolant driving member 400 drives the coolant to circulate in the circulation path to reduce the temperature of the cooling bottom plate 211.

[0039] In one embodiment, the cooling bottom plate 211 is connected to the battery cell 220 through a heat-conducting adhesive (not shown in the figure). In this embodiment, the multiple battery cells 220 are adhered to the cooling bottom plate 211 through the heat-conducting adhesive, so that when the multiple battery cells 220 work, heat can be quickly transferred to the cooling bottom plate 211, and a liquid passing channel is provided in the cooling bottom plate 211, and the heat can be taken away when the coolant passes through.

[0040] In one embodiment, the coolant driving member 400 is a liquid pump, so that the coolant is delivered to the cooling bottom plate 211 through the liquid pump.

[0041] In one embodiment, the cabinet body 100 is provided with a plurality of air outlet holes (not shown in the figure) arranged at intervals, and the air outlet holes are arranged opposite to the heat dissipation holes 210a. It can be understood that the plurality of air outlet holes are arranged on the back surface of the cabinet body 100, and the plurality of air outlet holes are arranged opposite to the heat dissipation holes 210a, so that the exhaust fan 240 blows out heat through the heat dissipation holes 210a and the air outlet holes, further improving the heat dissipation effect.

[0042] As Figure 1 shown, in one embodiment, a plurality of mounting brackets 110 arranged at intervals are provided in the cabinet body 100, and each mounting bracket 110 abuts against the corresponding liquid cooling box 210. In this embodiment, the plurality of liquid cooling boxes 210 are correspondingly located on the mounting brackets 110 to fix the liquid cooling boxes 210 at corresponding positions, and at the same time, the disassembly and assembly convenience of the liquid cooling boxes 210 is relatively high.

[0043] As Figure 1 and Figure 2 shown, in one embodiment, the cabinet body 100 further includes a fastening member 120. The mounting bracket 110 is provided with a first connection hole, the liquid cooling box 210 is provided with a second connection hole, and the fastening member 120 sequentially passes through the first connection hole and the second connection hole to fix the mounting bracket 110 and the liquid cooling box 210. In this embodiment, the fastening member 120 is a screw, and the screw passes through the first connection hole and the second screw connection hole, so that the mounting bracket 110 and the liquid cooling box 210 are screwed and fixed, and the fixing effect of the mounting bracket 110 and the liquid cooling box 210 is better to prevent the liquid cooling box 210 from falling off the mounting bracket 110.

[0044] As Figure 1 shown, in one embodiment, the plurality of battery assemblies 200 are arranged in an array along the vertical direction of the cabinet body 100. In this embodiment, the plurality of battery assemblies 200 are arranged in an array along the vertical direction of the cabinet body 100, and the coolant driving member 400 and the controller 300 are both installed in the cabinet body 100 and are arranged adjacent to the battery assemblies 200, so that the structure in the cabinet body 100 is more compact and the space utilization rate is higher.

[0045] The present application also provides a lithium battery module, including the storage battery 10 with efficient heat dissipation described in any of the above embodiments.

[0046] Compared with the prior art, the present disclosure has at least the following advantages:

[0047] For the above-mentioned battery 10 with efficient heat dissipation, a plurality of battery modules 200 arranged at intervals are installed in the cabinet body 100, and the controller 300 and the coolant driving member 400 are also installed in the cabinet body 100. A temperature sensor 230 and an exhaust fan 240 are installed on each liquid cooling box 210 of the battery module 200. When the temperature sensor 230 detects that the temperature in the corresponding liquid cooling box 210 is abnormal, the controller 300 controls the coolant driving member 400 to convey the coolant to the liquid cooling box 210, and at the same time, the controller 300 controls the exhaust fan 240 to start, so as to rapidly reduce the temperature of the corresponding liquid cooling box 210. In this way, targeted heat dissipation can be carried out for a plurality of battery modules 200, improving the heat dissipation effect and efficiency.

[0048] The above embodiments only represent several implementation manners of the present disclosure, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several deformations and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. An energy storage battery with efficient heat dissipation, comprising a cabinet body and a plurality of battery modules, wherein the plurality of battery modules are sequentially and spacedly installed in the cabinet body, and is characterized in that, the energy storage battery with efficient heat dissipation further comprises a controller and a coolant driving member, the controller and the coolant driving member are both installed in the cabinet body, the coolant driving member is electrically connected to the controller, each battery module comprises a liquid cooling box, a plurality of battery cells, a temperature sensor and an exhaust fan, the plurality of battery cells are installed in the liquid cooling box, the liquid cooling box is provided with heat dissipation holes, the temperature sensor and the exhaust fan are both installed on the liquid cooling box, the temperature sensor is used for detecting the temperature inside the liquid cooling box, the exhaust fan is arranged towards the heat dissipation holes to discharge the heat inside the liquid cooling box, the temperature sensor and the exhaust fan are both electrically connected to the controller, the liquid cooling box is connected to the coolant driving member, and the coolant driving member is used for delivering coolant to the liquid cooling box.

2. The high-efficiency heat-dissipating storage battery according to claim 1, wherein The number of the heat dissipation holes is multiple, and the multiple heat dissipation holes are spacedly arranged on the liquid cooling box.

3. The high-efficiency heat-dissipating storage battery according to claim 1, wherein The liquid cooling box comprises a cooling bottom plate, a top plate and a box body, the box body is connected to the cooling bottom plate, the top plate covers the box body, the cooling bottom plate is provided with a liquid inlet and a liquid outlet which are spacedly arranged, the liquid inlet and the liquid outlet are respectively connected to the coolant driving member, and the cooling bottom plate is connected to the battery cells.

4. The high-efficiency heat-dissipating storage battery according to claim 3, characterized in that, The cooling bottom plate and the battery cells are connected by heat-conducting glue.

5. The high-efficiency heat-dissipating storage battery according to claim 1, wherein The coolant driving member is a liquid pump.

6. The high-efficiency heat-dissipating storage battery according to claim 1, wherein The cabinet body is provided with a plurality of spacedly arranged air outlet holes, and the air outlet holes are arranged opposite to the heat dissipation holes.

7. The high-efficiency heat-dissipating storage battery according to claim 1, wherein A plurality of spacedly arranged mounting brackets are arranged in the cabinet body, and each mounting bracket abuts against the corresponding liquid cooling box.

8. The high-efficiency heat-dissipating storage battery according to claim 7, wherein The cabinet body further comprises fasteners, the mounting bracket is provided with a first connection hole, the liquid cooling box is provided with a second connection hole, and the fasteners sequentially pass through the first connection hole and the second connection hole to fix the mounting bracket and the liquid cooling box.

9. The high-efficiency heat-dissipating storage battery according to claim 1, wherein The plurality of battery modules are arranged in an array along the vertical direction of the cabinet body.

10. A lithium battery module, characterized in that, An energy storage battery with efficient heat dissipation according to any one of claims 1 to 9.

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