Search

CN-224217437-U - Relay, distribution box and battery pack

CN224217437UCN 224217437 UCN224217437 UCN 224217437UCN-224217437-U

Abstract

The application discloses a relay, a distribution box and a battery pack, wherein the relay comprises a first shell, a separation plate, a first static contact terminal and a second static contact terminal, the first static contact terminal penetrates through the first shell and is provided with a first section exposed out of the first shell, the second static contact terminal penetrates through the first shell and is provided with a second section exposed out of the first shell, the separation plate and the first shell are integrally formed, and the separation plate is arranged between the first section and the second section. According to the application, the creepage distance and the electric gap between the first section and the second section are increased by using the isolating plate, so that the risk of electric leakage between the first static contact terminal and the second static contact terminal is reduced, and the insulation requirement of the high-voltage battery pack is met. Meanwhile, through setting the isolation plate and the first shell into an integrally formed structure, the connection strength of the isolation plate and the first shell can be improved, the isolation plate and the first shell are prevented from falling off in the use process, and the relay is also convenient to assemble and use.

Inventors

  • LIAO ZHI
  • LIU GUANGQIANG

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250521

Claims (10)

  1. 1. A relay is characterized by comprising a first shell (10), a separation plate (20), a first static contact terminal (30) and a second static contact terminal (40); The first stationary contact terminal (30) is arranged in the first shell (10) in a penetrating way and is provided with a first section (31) exposed out of the first shell (10), and the second stationary contact terminal (40) is arranged in the first shell (10) in a penetrating way and is provided with a second section (41) exposed out of the first shell (10); Wherein the isolation plate (20) and the first shell (10) are integrally formed, and the isolation plate (20) is arranged between the first section (31) and the second section (41).
  2. 2. Relay according to claim 1, characterized in that the spacer (20) comprises a first end (21) and a second end (22) arranged opposite each other, the first end (21) being connected to the first housing (10), the second end (22) extending towards an end remote from the first housing (10), the thickness of the spacer (20) decreasing gradually from the first end (21) to the second end (22).
  3. 3. Relay according to claim 1, characterized in that the side of the partition plate (20) facing away from the first housing (10) is higher than the side of the first section (31) facing away from the first housing (10); And/or the side of the separating plate (20) facing away from the first housing (10) is higher than the side of the second section (41) facing away from the first housing (10).
  4. 4. The relay according to claim 1, wherein a first mounting hole (13) and a second mounting hole (14) which are arranged at intervals are arranged on one side of the first shell (10) facing the isolation plate (20), the first stationary contact terminal (30) is arranged in the first mounting hole (13) in a penetrating manner, the second stationary contact terminal (40) is arranged in the second mounting hole (14) in a penetrating manner, a first boss (23) is arranged on one side of the first shell (10) facing the isolation plate (20), and the first boss (23) is arranged around the first mounting hole (13); And/or, a second boss (24) is arranged on one side of the first shell (10) facing the isolation plate (20), and the second boss (24) is arranged around the second mounting hole (14).
  5. 5. The relay according to claim 1, wherein the first housing (10) comprises a main body part (11) and a protruding part (12), the protruding part (12) is connected with the main body part (11), the isolation plate (20) is arranged on one side of the protruding part (12) away from the main body part (11), and the first stationary contact terminal (30) and the second stationary contact terminal (40) are respectively arranged on the protruding part (12) in a penetrating manner; The height direction of the relay is a first direction (X), a second direction (Y) is intersected with the first direction (X), the orthographic projection area of the protruding portion (12) is smaller than that of the main body portion (11) along the first direction (X), and the isolation plate (20) extends from one side of the protruding portion (12) to the other side along the second direction (Y).
  6. 6. Relay according to any of claims 1-5, characterized in that the first housing (10) is a ceramic housing and the separator (20) is a ceramic separator.
  7. 7. Relay according to any of claims 1-5, characterized in that the relay further comprises an electromagnetic assembly (50), the electromagnetic assembly (50) being arranged on the side of the first housing (10) remote from the separator plate (20), the electromagnetic assembly (50) being connected to the first housing (10), the electromagnetic assembly (50) being provided with a connection (511) on the outer surface.
  8. 8. The relay according to claim 7, characterized in that the electromagnetic assembly (50) comprises a second housing (51) and a coil (52); The second shell (51) is connected with the first shell (10), a containing cavity (512) is formed in the second shell (51), the coil (52) is arranged in the containing cavity (512), and the connecting portion (511) is convexly arranged on the outer surface of the second shell (51).
  9. 9. A distribution box, characterized by comprising a connection terminal and a relay according to any of claims 1-8, said connection terminal being electrically connected to said first section (31) and to said second section (41), respectively.
  10. 10. A battery pack comprising the electrical box of claim 9.

Description

Relay, distribution box and battery pack Technical Field The application belongs to the technical field of batteries, and particularly relates to a relay, a distribution box and a battery pack. Background With the rapid development of the new energy automobile industry, in order to meet the requirements of users on quick charge and long endurance mileage, the voltage setting of the battery pack is higher and higher. In the related art, a relay is provided in a battery pack for controlling the on and off of a circuit. However, the relay in the related art has poor insulation performance, and cannot meet the insulation requirement of the high-voltage battery pack. Disclosure of utility model The application aims to provide a relay, a distribution box and a battery pack, which can solve the problem of poor insulating performance of the relay in the related technology. In order to solve the technical problems, the application is realized as follows: In a first aspect, an embodiment of the present application provides a relay including a first housing, a separator, a first stationary contact terminal, and a second stationary contact terminal; the first stationary contact terminal penetrates through the first shell and is provided with a first section exposed out of the first shell; the second stationary contact terminal penetrates through the first shell and is provided with a second section exposed out of the first shell; The isolation plate and the first shell are integrally formed, and the isolation plate is arranged between the first section and the second section. Optionally, the isolation board includes a first end and a second end that are disposed opposite to each other, the first end is connected to the first housing, the second end extends toward an end far away from the first housing, and the thickness of the isolation board gradually decreases from the first end to the second end. Optionally, a side of the partition facing away from the first housing is higher than a side of the first section facing away from the first housing; And/or, a side of the isolation plate facing away from the first shell is higher than a side of the second section facing away from the first shell. Optionally, a first mounting hole and a second mounting hole which are arranged at intervals are formed in one side, facing the isolation plate, of the first shell, the first stationary contact terminal penetrates through the first mounting hole, the second stationary contact terminal penetrates through the second mounting hole, a first boss is formed in one side, facing the isolation plate, of the first shell, and the first boss is arranged around the first mounting hole; And/or, a second boss is arranged on one side of the first shell, which faces the isolation plate, and the second boss is arranged around the second mounting hole. Optionally, the first shell comprises a main body part and a protruding part, wherein the protruding part is connected with the main body part, and the isolation plate is arranged on one side of the protruding part far away from the main body part; The height direction of the relay is a first direction, a second direction is intersected with the first direction, the orthographic projection area of the protruding portion is smaller than that of the main body portion along the first direction, and the isolation plate extends from one side of the protruding portion to the other side along the second direction. Optionally, the first shell is a ceramic shell, and the isolation plate is a ceramic isolation plate. Optionally, the relay further includes an electromagnetic component, the electromagnetic component is disposed on one side of the first housing away from the isolation board, the electromagnetic component is connected with the first housing, and a connection portion is disposed on an outer surface of the electromagnetic component. Optionally, the electromagnetic assembly includes a second housing and a coil; The second shell is connected with the first shell, an accommodating cavity is formed in the second shell, the coil is arranged in the accommodating cavity, and the connecting part is convexly arranged on the outer surface of the second shell. In a second aspect, an embodiment of the present application provides a power distribution box, including a connection terminal and a relay as set forth in any one of the above, where the connection terminal is electrically connected to the first section and the second section, respectively. In a third aspect, an embodiment of the present application provides a battery pack including the above-described distribution box. In the embodiment of the application, the isolation plate is arranged between the first section of the first static contact terminal and the second section of the second static contact terminal to isolate the first static contact terminal from the second static contact terminal, so that the creepage distance and the electric gap between t