CN-224217388-U - Composite switch with partition board

Abstract

The utility model discloses a composite switch with a partition board, wherein a shell is covered by an upper cover and a bottom shell, wiring holes are formed at two ends of the shell, a chute is formed in the shell between the wiring holes, a positioning convex part is arranged on the side wall of the chute, a connecting part at one end of the partition board is in sliding fit with the chute, at least two positioning grooves are formed at two sides of the connecting part, and the positioning convex part and the grooves are mutually embedded to push the partition board to be embedded or separated. The composite switch prevents interphase short circuit under high voltage/high current scenes by arranging the partition plates to effectively isolate arcs, and the sliding fit and positioning structure of the partition plates and the sliding grooves are convenient for flexibly replacing the partition plates according to different use scenes, so that the applicability and the flexibility are improved.

Inventors

• WANG GUANGHENG
• WANG GUANGJIAN
• HUANG YUHUI
• KONG JIANFEI
• LI YUNFEI

Assignees

• 浙江佑朗电气有限公司

Dates

Publication Date

20260508

Application Date

20250428

Claims (7)

1. 1. The utility model provides a take compound switch of baffle, includes the shell that is formed by upper cover and drain pan lid to close the connection, the both ends interval of shell is provided with wiring hole, its characterized in that: still include the division board, be provided with the spout on the shell between wiring hole and the wiring hole, be provided with the location convex part on the both sides lateral wall of spout, the one end of division board be provided with above-mentioned spout sliding fit's connecting portion, the both sides equidistant positioning groove that are provided with more than at least twice of connecting portion, location convex part and positioning groove gomphosis each other can be with location convex part embedding positioning groove or follow positioning groove internal sliding through promoting the division board along spout slip.
2. 2. The composite switch with the partition plate of claim 1, wherein the upper and lower sides of the positioning convex part and the upper and lower sides of the positioning groove are respectively provided with an inclined plane of 30-40 degrees.
3. 3. The composite switch with the partition plate of claim 1, wherein the positioning groove is a V-shaped groove or a trapezoid groove, the shape of the positioning convex part is matched with that of the positioning groove, and the fit clearance between the positioning convex part and the positioning groove is smaller than 0.1mm.
4. 4. The composite switch with the partition plate according to claim 1, wherein the partition plate is made of an epoxy resin-based composite material, a silicon nitride insulating coating is covered on the surface of the partition plate, and honeycomb grooves are formed in the surface of the silicon nitride insulating coating.
5. 5. The composite switch with a partition plate according to claim 1, wherein the sliding groove is of a T-shaped structure or a wedge-shaped structure, and the connecting part is matched with the sliding groove.
6. 6. The composite switch with a separator according to claim 4, wherein the thickness of the silicon nitride insulating coating is 0.1-0.3mm.
7. 7. The composite switch with the partition plate of claim 1, wherein the two sides of the upper cover are provided with a plurality of heat dissipation notches with V-shaped structures which are distributed at equal intervals, and the opening area of the heat dissipation notches accounts for 50% -70% of the surface area of one side of the upper cover provided with the heat dissipation notches.

Description

Composite switch with partition board Technical Field The utility model relates to the technical field of compound switches, in particular to a compound switch with a partition board. Background In a power system, the composite switch is widely applied to on-off operation of a control circuit, and particularly under the working scene of high voltage and high current, the performance of the composite switch directly influences the safety and stability of the circuit system. The existing compound switch generally adopts a shell structure formed by covering and connecting an upper cover and a bottom shell, and wiring holes are formed at two ends of the shell for circuit connection. However, in the actual use process, because of the lack of effective isolation measures between the wiring holes, electric arcs are easy to generate under the condition of high voltage/high current, so that serious problems such as interphase short circuit and the like are caused, the safe operation of a power system is greatly threatened, and the reliability and the service life of the composite switch are reduced. In order to solve the problems of arc isolation and inter-phase short circuit prevention, a part of the compound switch is provided with the partition plates, but the partition plates are often fixedly installed, and are difficult to flexibly adjust and replace according to different use scenes. When the use environment or circuit parameters change, the fixed partition board cannot meet diversified requirements, so that the applicability of the compound switch is limited, and the equipment maintenance and replacement cost is increased. Therefore, a composite switch structure which can not only effectively isolate arcs and prevent interphase short circuits, but also flexibly adapt to different use scenes is needed. Disclosure of utility model The utility model provides a compound switch with a baffle plate aiming at the defects in the background technology. The technical scheme includes that the composite switch with the partition plate comprises a shell formed by covering and connecting an upper cover and a bottom shell, wiring holes are formed in two ends of the shell at intervals, the composite switch also comprises the partition plate, a sliding groove is formed in the shell between the wiring holes, positioning convex portions are arranged on side walls of two sides of the sliding groove, a connecting portion in sliding fit with the sliding groove is arranged at one end of the partition plate, at least two positioning grooves are formed in two sides of the connecting portion at equal intervals, the positioning convex portions are mutually embedded with the positioning grooves, and the positioning convex portions can be embedded into the positioning grooves or slide out of the positioning grooves by pushing the partition plate to slide along the sliding groove. Further, the upper side and the lower side of the positioning convex part and the upper side and the lower side of the positioning groove are respectively provided with an inclined plane with 30-40 degrees. Furthermore, the positioning groove is a V-shaped groove or a trapezoid groove, the shape of the positioning convex part is matched with that of the positioning groove, and the fit clearance between the positioning convex part and the positioning groove is smaller than 0.1mm. Furthermore, the partition plate is made of an epoxy resin-based composite material, the surface of the partition plate is covered with a silicon nitride insulating coating, and the surface of the silicon nitride insulating coating is provided with honeycomb grooves. Further, the sliding groove is of a T-shaped structure or a wedge-shaped structure, and the connecting part is matched with the sliding groove. Further, the thickness of the silicon nitride insulating coating is 0.1-0.3mm. Further, a plurality of radiating notches of V-shaped structures which are distributed at equal intervals are formed in two sides of the upper cover, and the opening area of each radiating notch accounts for 50% -70% of the surface area of one side of the upper cover provided with the radiating notch. The beneficial effects of the utility model are as follows: Firstly, through setting up the division board between wiring hole and wiring hole, can effectively separate electric arc under high voltage/heavy current scene, avoid the emergence of interphase short circuit phenomenon, greatly promoted the security and the stability of compound switch in complicated electric power environment, guarantee electric power system's reliable operation, extension compound switch's life. Secondly, the sliding grooves on the separation plate and the shell adopt a sliding fit mode, and the design of mutual embedding of the positioning convex part and the positioning groove is utilized, so that the separation plate can be flexibly adjusted and replaced according to the requirements of actual use scenes. When the use environ