CN-224204154-U - Heat radiation structure and energy storage equipment

Abstract

The embodiment of the utility model discloses an energy storage heat dissipation structure and energy storage equipment, wherein in the heat dissipation structure, a lower shell is provided with a liquid inlet, a flow channel, a liquid outlet, a flow dividing opening and a converging opening, the liquid inlet, the flow channel and the liquid outlet are communicated to form a first fluid passage, the liquid inlet, the flow dividing opening, a first liquid cooling plate, the converging opening and the liquid outlet are communicated to form a second fluid passage, a plurality of second liquid cooling plates are oppositely arranged at intervals, an accommodating space is formed between any two adjacent second liquid cooling plates and used for accommodating an electric core, a liquid cooling pipe is arranged between the two adjacent second liquid cooling plates and arranged on one side surface of the electric core, a plurality of liquid cooling pipes are used for communicating the second liquid cooling plates and forming a fluid pipeline, and the liquid inlet, the flow dividing opening, the fluid pipeline, the converging opening and the liquid outlet are communicated to form a third fluid passage. By the mode, the first fluid passage, the second fluid passage and the third fluid passage are respectively contacted with different surfaces of the battery cell, so that the heat exchange area of the battery cell is enlarged, and the heat dissipation efficiency is improved.

Inventors

• LEI JIANHUA
• WANG TINGHONG
• CHEN YANG
• HE DIHUA

Assignees

• 深圳市德兰明海新能源股份有限公司

Dates

Publication Date

20260505

Application Date

20250422

Claims (10)

1. 1. A heat dissipation structure, comprising: The lower shell is provided with a liquid inlet, a flow channel, a liquid outlet, a shunt opening and a confluence opening, wherein the liquid inlet, the flow channel and the liquid outlet are sequentially communicated and form a first fluid passage for cooling liquid to flow, the shunt opening is communicated between the liquid inlet and the flow channel, and the confluence opening is communicated between the flow channel and the liquid outlet; The first liquid cooling plate is arranged above the lower shell, and the liquid inlet, the shunt opening, the first liquid cooling plate, the confluence opening and the liquid outlet are sequentially communicated and form a second fluid passage for cooling liquid to flow; the plurality of second liquid cooling plates are oppositely arranged at intervals and positioned between the lower shell and the first liquid cooling plates, and an accommodating space is formed between any two adjacent second liquid cooling plates and is used for accommodating a battery cell positioned between the lower shell and the first liquid cooling plates; The liquid cooling pipes are positioned between two adjacent second liquid cooling plates and are arranged on one side face of the electric core, the liquid cooling pipes are used for being communicated with the second liquid cooling plates to form a fluid pipeline, and the liquid inlet, the split-flow port, the fluid pipeline, the confluence port and the liquid outlet are sequentially communicated to form a third fluid passage for cooling liquid to flow.
2. 2. The heat dissipating structure of claim 1, wherein, The flow passage of the lower shell extends in a serpentine shape, and/or, The first liquid cooling plate is in serpentine extension and/or, The fluid channels formed by the second liquid cooling plates and the liquid cooling pipes extend in a serpentine shape.
3. 3. The heat dissipating structure of claim 1, wherein, The heat dissipation structure further comprises a heat conduction piece, the heat conduction piece is arranged between the first liquid cooling plate and the second liquid cooling plate, the heat conduction piece is in butt joint with the first liquid cooling plate, and one side, deviating from the first liquid cooling plate, of the heat conduction piece is used for being in butt joint with the battery cell when the battery cell is accommodated in the accommodating space.
4. 4. The heat dissipating structure of claim 3 wherein, The heat dissipation structure comprises a first bonding piece, wherein the first bonding piece is arranged between the first liquid cooling plate and the heat conduction piece, and the first bonding piece is used for bonding the first liquid cooling plate and the heat conduction piece.
5. 5. The heat dissipating structure of claim 3 wherein, The heat dissipation structure comprises a second bonding part, the second bonding part is arranged on one side, deviating from the first liquid cooling plate, of the heat conduction part, one side of the second bonding part is adhered to one side, deviating from the first liquid cooling plate, of the heat conduction part, and the other side of the second bonding part is used for adhering the heat conduction part to the battery cell when the battery cell is accommodated in the accommodating space.
6. 6. The heat dissipating structure of claim 1, wherein, The heat dissipation structure comprises a third bonding piece, the third bonding piece is arranged on one side, facing the accommodating space, of the second liquid cooling plate, one side of the third bonding piece is adhered to one side, facing the accommodating space, of the second liquid cooling plate, and the other side of the third bonding piece is used for adhering the second liquid cooling plate to the battery cell when the battery cell is accommodated in the accommodating space.
7. 7. The heat dissipating structure of claim 1, wherein, The heat radiation structure comprises a blocking piece, one end of the blocking piece is connected to the lower shell, the other end of the blocking piece is connected to the end part of the second liquid cooling plate, and the blocking piece is used for blocking a gap between the second liquid cooling plate and the battery cell when the battery cell is contained in the containing space.
8. 8. The heat dissipating structure of claim 7, The plugging piece comprises a supporting part, a first plugging part and a second plugging part, wherein the supporting part is connected to the lower shell, one end of the first plugging part and one end of the second plugging part are both connected with one end of the supporting part, which is far away from the lower shell, the other end of the first plugging part and the other end of the second plugging part are both extended towards the direction, which is far away from the supporting part, of the first plugging part, a slot is formed between the other end of the first plugging part and the other end of the second plugging part, and the end part of the second liquid cooling plate is inserted into the slot.
9. 9. The heat dissipating structure of claim 1, wherein, The second liquid cooling plate comprises a runner plate, two runner pipes and two liquid cooling joints, wherein two ends of the runner plate are respectively communicated with the two runner pipes, one runner pipe is communicated with one liquid cooling joint, and one liquid cooling joint is used for being connected with one liquid cooling pipe.
10. 10. An energy storage device, comprising the heat dissipation structure, an upper shell and an energy storage assembly according to any one of claims 1-9, wherein the energy storage assembly comprises a plurality of electric cores, the upper shell is detachably connected with the lower shell, the first liquid cooling plate, the second liquid cooling plates and the liquid cooling pipes are all arranged in the upper shell, the liquid inlet and the liquid outlet are arranged outside the upper shell, and one electric core is arranged in one accommodating space.

Description

Heat radiation structure and energy storage equipment Technical Field The embodiment of the utility model relates to the technical field of energy storage, in particular to a heat dissipation structure and energy storage equipment. Background An energy storage device refers to a device that enables the storage and release of energy by converting energy from one form to another. Along with the continuous development of the energy storage device towards the directions of larger capacity, higher efficiency and lower cost, the high-temperature heating of the battery cell assembly of the energy storage device is continuously aggravated, for example, in the charge and discharge process of the high-capacity energy storage device with high charge and discharge multiplying power, the high-temperature heating of the battery cell assembly of the energy storage device is aggravated, and in order to timely disperse the heat of the energy storage device, the heat runaway of the energy storage device is avoided, and a liquid cooling heat dissipation structure is generally arranged for carrying out heat exchange with the battery cell assembly of the energy storage device. However, during the heat dissipation process, the battery cell assembly of the energy storage device is usually only in single-sided contact with the liquid cooling heat dissipation structure, so that the heat exchange area of the battery cell assembly is limited, and the heat dissipation efficiency of the battery cell assembly is reduced. Disclosure of utility model The embodiment of the utility model aims to provide a heat dissipation structure and energy storage equipment, which can improve heat dissipation efficiency. In order to solve the technical problems, the heat dissipation structure comprises a lower shell, a first liquid cooling plate, a plurality of second liquid cooling plates and a plurality of liquid cooling pipes, wherein the lower shell is provided with a liquid inlet, a flow channel, a liquid outlet, a shunt opening and a confluence opening, the liquid inlet, the flow channel and the liquid outlet are sequentially communicated and form a first fluid passage for cooling liquid to flow, the shunt opening is communicated between the liquid inlet and the flow channel, the confluence opening is communicated between the flow channel and the liquid outlet, the first liquid cooling plate is arranged above the lower shell, the liquid inlet, the shunt opening, the first liquid cooling plate, the confluence opening and the liquid outlet are sequentially communicated and form a second fluid passage for cooling liquid to flow, the plurality of second liquid cooling plates are relatively arranged at intervals and are positioned between the lower shell and the first liquid cooling plates, an accommodating space is formed between any two adjacent second liquid cooling plates, the accommodating space is used for accommodating the liquid core and is positioned between the first liquid cooling plates, the fluid core and the fluid channels are sequentially communicated with the second liquid cooling plates, and the fluid channels are formed between the two adjacent liquid cooling channels, and the fluid channels are sequentially communicated with the liquid inlet and the liquid channels are formed between the second liquid cooling channels. Optionally, the flow channel of the lower shell is in a serpentine shape, and/or the first liquid cooling plates are in a serpentine shape, and/or the fluid channels formed by the second liquid cooling plates and the liquid cooling pipes are in a serpentine shape. Optionally, the heat dissipation structure further includes a heat conducting member, the heat conducting member set up in between the first liquid cooling board with the second liquid cooling board, the heat conducting member with first liquid cooling board butt, the heat conducting member deviates from one side of first liquid cooling board is used for when the electric core accept in accommodating space the butt electric core. Optionally, the heat dissipation structure includes a first adhesive member, the first adhesive member is disposed between the first liquid cooling plate and the heat conducting member, and the first adhesive member fixes the first liquid cooling plate and the heat conducting member. Optionally, the heat dissipation structure includes the second bonding piece, the second bonding piece set up in the heat conduction piece deviates from one side of first liquid cooling board, one side of second bonding piece with the heat conduction piece deviates from one side of first liquid cooling board is cemented, the opposite side of second bonding piece is used for when the electric core accept in accommodation space with the heat conduction piece with electric core is cemented. Optionally, the heat dissipation structure includes a third bonding part, the third bonding part set up in the second liquid cooling board is towards one side of accommod