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CN-224233968-U - Cabinet and power conversion device

CN224233968UCN 224233968 UCN224233968 UCN 224233968UCN-224233968-U

Abstract

The embodiment of the application discloses a case and power conversion equipment, which relate to the technical field of new energy equipment, wherein the case comprises a case body, a case cover, a fastener and a connecting piece, wherein the case cover can be opened or closed, the fastener is arranged between the case body and the case cover, one end of the fastener is connected with the case body, the other end of the fastener is connected with the case cover, one end of the connecting piece is connected with the case body, the other end of the connecting piece is connected with the case cover, the connecting piece comprises a buffer part, and the buffer part can move or deform so as to enable the case cover to move relative to the case body to form a pressure relief opening. The technical scheme provided by the embodiment of the application aims to realize better explosion-proof performance of the chassis and improve the practicability and reliability of the chassis.

Inventors

  • ZHENG JIANFENG
  • SHI CHENGPAN
  • LI ZHENYA
  • ZHOU WEIGUO
  • ZHANG JIE

Assignees

  • 恒钧检测技术有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (11)

  1. 1. A chassis (100), comprising: a case (10); the box cover (30) can be opened or closed, and the box cover (30) is arranged on the box body (10); A fastener (50), wherein one end of the fastener (50) is connected with the box body (10), and the other end of the fastener (50) is connected with the box cover (30); The connecting piece (70), the one end of connecting piece (70) with box (10) is connected, the other end of connecting piece (70) with case lid (30) is connected, connecting piece (70) include buffer portion (73), buffer portion (73) are configured to can remove or deformation, so that case lid (30) remove relatively box (10) and form the pressure release mouth.
  2. 2. The chassis (100) of claim 1, wherein the fastener (50) comprises: -a first fastening section (51), said first fastening section (51) being connected to said tank (10); -a second fastening section (53), said second fastening section (53) being connected to said cover (30); And the shearing section (55) is connected with the first fastening section (51) and the second fastening section (53), and the structural strength of the shearing section (55) is smaller than that of the first fastening section (51) and the second fastening section (53).
  3. 3. The case (100) according to claim 2, wherein the case body (10) is provided with an assembly hole (11), a stud (31) is provided on a side of the case cover (30) facing the case body (10), and the stud (31) is disposed opposite to the assembly hole (11); The first fastening section (51) penetrates through the assembly hole (11), and the second fastening section (53) is inserted into the stud (31) and is in threaded fit connection with the stud (31).
  4. 4. The chassis (100) of claim 1, wherein the fastener (50) is a magnetic member; The fastener (50) is connected with the box body (10) and is in magnetic attraction fit with the box cover (30), or The fastener (50) is connected to the box cover (30) and is in magnetic attraction fit connection with the box body (10).
  5. 5. The chassis (100) of claim 1, wherein the connector (70) is provided with a limiting hole (731), the connector (70) includes at least one rib (733), the at least one rib (733) is disposed in the limiting hole (731), the rib (733) extends along a first direction, the first direction is a direction forming an included angle with a length direction of the connector (70), and the limiting hole (731) and the at least one rib (733) form the buffer portion (73).
  6. 6. The chassis (100) according to claim 5, wherein the fastener (50) is disposed through a side of the case body (10) opposite to the case cover (30), and the fastener (50) is disposed through the limiting hole (731) and abuts against the rib (733).
  7. 7. The casing (100) according to claim 1, wherein the connecting member (70) comprises a first connecting section (71), a second connecting section (72) and an elastic member, the elastic member forms the buffer portion (73), the first connecting section (71) is connected with the case cover (30), the second connecting section (72) is connected with the case body (10), one end of the elastic member is connected with one end of the first connecting section (71) away from the case cover (30), and the other end of the elastic member is connected with one end of the second connecting section (72) away from the case body (10).
  8. 8. The chassis (100) of claim 7, wherein the resilient member is a bellows structure (735).
  9. 9. The cabinet (100) according to any one of claims 1 to 8, wherein the cabinet (10) is provided with a surrounding edge (13), the surrounding edge (13) being disposed opposite to the case cover (30), and the fastener (50) connects the surrounding edge (13) and the case cover (30); The connecting piece (70) comprises a first connecting section (71) and a second connecting section (72), wherein the first connecting section (71) is connected with the box cover (30), the extending direction of the second connecting section (72) is in an included angle with the extending direction of the first connecting section (71), and the second connecting section (72) is connected with the surrounding edge (13).
  10. 10. The cabinet (100) according to any one of claims 1 to 8, wherein the cabinet (100) further comprises a set screw (90), the set screw (90) connecting the cabinet (10) and the cover (30), the set screw (90) being disposed side by side with the fastener (50) in a spaced apart relationship.
  11. 11. A power conversion device, characterized in that the power conversion device comprises a power component and a chassis (100), the chassis (100) being the chassis (100) according to any of claims 1 to 10, the power component being provided within the chassis (100).

Description

Cabinet and power conversion device Technical Field The embodiment of the application relates to the technical field of new energy equipment, in particular to a case and power conversion equipment. Background In the related art, the power conversion equipment such as an inverter and a rectifier can be provided with components such as a chassis loading and accommodating power devices, so that the complete machine protection of the power conversion equipment is realized, and the stable operation of the power conversion equipment is ensured. However, when the power conversion equipment has faults such as thermal runaway, a large amount of gas is easily generated due to short circuit of part of components in the equipment, the gas is accumulated in the case so that the air pressure in the case rises suddenly, the case cover or the structural member of the case is broken under the action of larger air pressure, a certain potential safety hazard exists, and the practicability and the structural reliability of the power conversion equipment are reduced. Disclosure of utility model The application provides a chassis and power conversion equipment, and aims to achieve better explosion-proof performance of the chassis and improve practicability and reliability of the chassis. The case provided by one embodiment of the application comprises a case body, a case cover, a fastener and a connecting piece, wherein the case cover can be opened or closed, the case cover is arranged between the case body and the case cover, one end of the fastener is connected with the case body, the other end of the fastener is connected with the case cover, one end of the connecting piece is connected with the case body, the other end of the connecting piece is connected with the case cover, the connecting piece comprises a buffer part, and the buffer part can move or deform so as to enable the case cover to move relative to the case body to form a pressure relief opening. In one embodiment, the fastener comprises a first fastening section, a second fastening section and a shearing section, wherein the first fastening section is connected with the box body, the second fastening section is connected with the box cover, the shearing section is connected with the first fastening section and the second fastening section, and the structural strength of the shearing section is smaller than that of the first fastening section and the second fastening section. In an embodiment, an assembly hole is formed in a side, facing away from the case cover, of the case body, a stud is arranged on a side, facing towards the case body, of the case cover, and the stud is arranged opposite to the assembly hole. The first fastening section penetrates through the assembly hole, and the second fastening section is inserted into the stud and is in threaded fit connection with the stud. In one embodiment, the fastener is a magnetic member. The fastening piece is connected to the box body and is in magnetic attraction fit with the box cover, or the fastening piece is connected to the box cover and is in magnetic attraction fit with the box body. In one embodiment, the connecting piece is provided with a limiting hole, the connecting piece comprises at least one rib, the at least one rib is arranged in the limiting hole, the ribs extend along a first direction, the first direction is a direction forming an included angle with the length direction of the connecting piece, and the limiting hole and the at least one rib form the buffer portion. In an embodiment, the fastener passes through one side of the box body opposite to the box cover, and the fastener passes through the limiting hole and abuts against the rib. In an embodiment, the connecting piece includes first linkage segment, second linkage segment and elastic component, the elastic component forms buffer portion, first linkage segment with the case lid is connected, the second linkage segment with the box is connected, the one end of elastic component with the one end that the case lid was kept away from to first linkage segment is connected, the other end of elastic component with the one end that the case was kept away from to the second linkage segment is connected. In one embodiment, the elastic member has a corrugated structure. In one embodiment, the box body is provided with a surrounding edge, the surrounding edge is arranged opposite to the box cover, the fastener is used for connecting the surrounding edge with the box cover, the connecting piece comprises a first connecting section and a second connecting section, the first connecting section is connected with the box cover, the extending direction of the second connecting section is arranged at an included angle with the extending direction of the first connecting section, and the second connecting section is connected with the surrounding edge. In one embodiment, the case further comprises a fixing screw, the fixing screw connects the case body and