Search

CN-121983734-A - Battery rack and energy storage cabinet

CN121983734ACN 121983734 ACN121983734 ACN 121983734ACN-121983734-A

Abstract

The invention provides a battery rack and an energy storage cabinet, belongs to the technical field of energy storage cabinets, and solves the technical problem that the heat exchange efficiency of an energy storage battery and the external environment is low due to the fact that the space of the energy storage cabinet is limited and airtight and gas circulation is not smooth. Comprises a supporting frame for accommodating a battery, wherein the supporting frame comprises a supporting rail positioned at the bottom of the battery and a socket plate positioned at the tail of the battery; the heat exchange plate comprises a heat exchange area positioned at the bottom of the battery and a control area positioned at the rear side of the socket plate, a transition area hinged to the supporting frame is arranged between the heat exchange area and the control area, an elastic film is attached to the heat exchange area, the peripheral edge of the elastic film is in sealing connection with the heat exchange area, a fluid medium space is formed between the elastic film and the heat exchange area, and a medium inlet and a medium outlet are arranged in the fluid medium space; and the overturning control mechanism adjusts the overturning state of the heat exchange area according to whether the battery is arranged in the supporting frame or not. The heat exchange efficiency of the energy storage battery and the external environment is improved, and the working stability and the safety of the battery are improved.

Inventors

  • ZHANG CHAOYUN

Assignees

  • 重庆欧旭电气有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. A battery rack, comprising: A support frame (1) for accommodating a battery, the support frame (1) comprising a support rail (11) at the bottom of the battery and a socket plate (12) at the tail of the battery; The heat exchange plate (2), the heat exchange plate (2) comprises a heat exchange area (21) positioned at the bottom of the battery and a control area (22) positioned at the rear side of the socket plate (12), a transition area (23) hinged to the supporting frame (1) is arranged between the heat exchange area (21) and the control area (22), an elastic membrane (211) is adhered to the heat exchange area (21), the peripheral edge of the elastic membrane (211) is in sealing connection with the heat exchange area (21), a fluid medium space (212) is formed between the elastic membrane (211) and the heat exchange area (21), and the fluid medium space (212) is provided with a medium inlet (213) and a medium outlet; And the overturning control mechanism (3), the overturning control mechanism (3) adjusts the overturning state of the heat exchange area (21) according to whether a battery is arranged in the supporting frame (1), when the battery enters the supporting frame (1), the heat exchange area (21) overturns upwards and is attached to the bottom of the battery, and when the battery leaves the supporting frame (1), the heat exchange area (21) overturns downwards and leaves the bottom of the battery.
  2. 2. A battery rack as defined in claim 1, wherein: the overturning control mechanism (3) comprises a butt rod (31), a first elastic piece (32) and a butt plate (33); the abutting plate (33) is vertically arranged in a control area (22) of the heat exchange plate (2); The abutting rod (31) penetrates through the socket plate (12) in a sliding mode, one end of the abutting rod (31) is used for abutting against a battery, and the other end of the abutting rod is in contact with the abutting plate (33); The first elastic piece (32) is abutted between the socket plate (12) and the abutting rod (31) and provides a restoring force along the axial direction of the abutting rod (31).
  3. 3. A battery rack as defined in claim 1, wherein: The device also comprises a frame bottom plate (41), a flexible film (42) and a hinged frame (43); the frame bottom plate (41) is arranged at the bottom of the supporting frame (1); The hinge frame (43) is arranged along the edge of the supporting frame (1), the tail end of the hinge frame (43) is hinged to the upper end of the socket board (12), the head end of the hinge frame (43) can turn around a hinge point, and initially, the height of the head end of the hinge frame (43) is consistent with that of the supporting rail (11); The upper end and the lower end of the flexible film (42) in the height direction are respectively connected with the frame bottom plate (41) and the hinged frame (43), both ends in the circumferential direction are connected with the socket plate (12), when the hinged frame (43) is turned up, the frame bottom plate (41), the flexible film (42) and the socket plate (12) form an isolation space for accommodating a battery, and the isolation space is provided with a water inlet pipe (44) and a water outlet pipe (45).
  4. 4. A battery rack according to claim 3, wherein said hinge frame (43) is made of a material having a density lower than that of the cooling fluid medium, and said hinge frame (43) is turned over with the fluid medium level when said isolated space is filled with the fluid medium.
  5. 5. A battery rack as set forth in claim 1, wherein a plurality of fluid medium spaces (212) are provided along the front-rear direction of the heat exchange plate (2), a total inlet (7) and a total outlet (8) are respectively provided on both sides of the heat exchange plate (2) in the width direction, each fluid medium space (212) is respectively connected to the total inlet (7) and the total outlet (8), a flow regulating mechanism (5) is provided at each medium inlet (213) and/or medium outlet of each fluid medium space (212), a flow control mechanism (6) is slidably provided on the heat exchange plate (2), and the flow control mechanism (6) can be moved to the position of each flow regulating mechanism (5) and regulate the flow.
  6. 6. A battery rack as claimed in claim 5, wherein said flow regulating means (5) of each fluid medium space (212) are arranged in a straight line, and said flow control means (6) is moved by a screw mechanism and reaches each of said flow regulating means (5).
  7. 7. A battery rack as defined in claim 5, wherein: The flow regulating mechanism (5) comprises a valve hole, a valve rod (51), a second elastic piece (52), a third elastic piece (53) and a slide lock (54); The valve hole penetrates through the medium inlet (213) or the medium outlet, the valve rod (51) is arranged in the valve hole in a sliding manner, the effective flow section of the medium channel can be changed at the head end of the valve rod (51), a disc is arranged at the tail end of the valve rod (51), the second elastic piece (52) is arranged between the disc and the heat exchange plate (2), and the medium channel has the largest effective flow section in the initial stage; The periphery of the disc is provided with a plurality of rings of concave rings (511) along the axial array, the sliding lock (54) is provided with a convex ring matched with the concave rings (511), the sliding lock (54) is abutted to the heat exchange plate (2) through the third elastic piece (53), and initially, the convex ring of the sliding lock (54) is inserted into the concave ring (511) of the valve rod (51).
  8. 8. A battery rack as defined in claim 7, wherein: the flow control mechanism (6) comprises a sliding body (61), a telescopic power source (62) and an electromagnet (63); When the sliding body (61) slides to correspond to the flow regulating mechanism (5), the electromagnet (63) can generate suction force on the sliding lock (54) and release the locking state of the sliding lock (54) on the valve rod (51), and the telescopic power source (62) can push the valve rod (51) to axially move.
  9. 9. An energy storage cabinet comprising a battery rack as claimed in any one of claims 1 to 8.
  10. 10. An energy storage cabinet according to claim 9, further comprising a housing (9), wherein a plurality of cells are arranged inside the housing (9), and wherein the gas in the interior space and the gas in the exterior space of the housing (9) are isolated from each other.

Description

Battery rack and energy storage cabinet Technical Field The invention relates to the technical field of energy storage cabinets, in particular to a battery rack and an energy storage cabinet. Background Along with the rapid development of new energy technology, the energy storage system is increasingly widely applied in the scenes of power peak shaving, emergency power backup and the like. The energy storage cabinet is used as key equipment for intensively placing energy storage batteries, and generally adopts standardized and modularized design, and a plurality of battery modules are densely arranged in the energy storage cabinet so as to meet the requirement of high energy density. For adapting to outdoor or industrial environment, the energy storage cabinet often has a certain protection level, and the cabinet body structure is relatively closed so as to ensure the safe and stable operation of internal electrical equipment. However, this closed configuration also presents significant thermal management challenges. In order to prevent the invasion of external foreign matters such as water vapor, dust or winged insects, the energy storage cabinet is usually kept airtight or is only provided with a limited ventilation opening, so that the gas circulation in the internal space is seriously unsmooth. When a large number of batteries work in a narrow space, generated heat is difficult to effectively diffuse to the outside of the cabinet through air convection, heat accumulation is caused, and the ambient temperature in the cabinet is continuously increased. Meanwhile, heat or cold of the external environment is difficult to be efficiently transferred to the surface of the battery through the gas medium. This makes the heat exchange efficiency very low, both in the heat dissipation and cooling of the battery and in the heating and heat preservation of the battery in a low-temperature environment. The battery runs under the working condition of overhigh or overlow temperature for a long time, so that the charge and discharge performance and the cycle life of the battery are affected, potential safety hazards such as thermal runaway and the like are more likely to be caused, and the overall reliability and safety of the energy storage system are severely restricted. At present, common heat dissipation or heating schemes focus on adding fans or air conditioning systems to cabinets, but are often limited by space layout and airflow paths, have limited effect and high energy consumption, and some schemes attempt to enhance heat exchange by improving the structure of the battery module itself, but this increases the complexity and cost of the battery module and reduces the battery energy density. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a battery rack and an energy storage cabinet, which are used for solving the technical problem of low heat exchange efficiency between the energy storage battery and the external environment due to limited and airtight space and unsmooth gas circulation when the energy storage battery is placed in the energy storage cabinet. The invention adopts the technical scheme that the battery rack and the energy storage cabinet are arranged. Wherein, a battery rack includes: A support frame for receiving the battery, the support frame including a support rail at the bottom of the battery and a socket plate at the tail of the battery; The heat exchange plate comprises a heat exchange area positioned at the bottom of the battery and a control area positioned at the rear side of the socket board, a transition area hinged to the supporting frame is arranged between the heat exchange area and the control area, an elastic membrane is attached to the heat exchange area, the peripheral edge of the elastic membrane is in sealing connection with the heat exchange area, a fluid medium space is formed between the elastic membrane and the heat exchange area, and a medium inlet and a medium outlet are arranged in the fluid medium space; And the overturning control mechanism is used for adjusting the overturning state of the heat exchange area according to whether a battery is arranged in the supporting frame or not, when the battery enters the supporting frame, the heat exchange area is overturned and attached to the bottom of the battery, and when the battery leaves the supporting frame, the heat exchange area is overturned downwards and leaves the bottom of the battery. The overturning control mechanism comprises a butt joint rod, a first elastic piece and a butt joint plate, wherein the butt joint plate is vertically arranged in a control area of the heat exchange plate, the butt joint rod penetrates through the socket plate in a sliding mode, one end of the butt joint rod is used for abutting against a battery, the other end of the butt joint rod is in contact with the butt joint plate, and the first elastic piece is abutted between the socket plate and the b