CN212161706U

CN212161706U - Direct current contactor

Info

Publication number: CN212161706U
Application number: CN202021109716.2U
Authority: CN
Inventors: 肖国兵
Original assignee: Ningbo Zhongxin Electromechanical Co ltd
Current assignee: Ningbo Zhongxin Electromechanical Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-12-15
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a direct current contactor, which comprises a main shell provided with a screw rod, wherein the main shell comprises a front table surface positioned on one side of an extending section of the screw rod, and the main shell is provided with an opening for communicating the screw rod with the outside; the periphery of the main shell body is provided with a plurality of groove bodies, the groove bodies are provided with bosses in the main shell body, and the bosses are provided with step surfaces in the direction deviating from the screw rod. The exposed part of the screw rod is screwed with a nut and washer assembly, and the nut and washer assembly is used for wiring. The end cover is detached from the main shell, the screw rod can be taken out from the opening after the nut gasket assembly is detached, the boss in the main shell can support the component assembly, an arc extinguish chamber is arranged between the component assembly and the screw rod to allow the mandrel to move, and the boss can strengthen the deformation resistance of the main shell. If the screw is made detachable and replaceable, the groove body can provide a storage position for the standby screw. The utility model discloses a structural configuration is reasonable, easy dismounting, reliable and stable.

Description

Direct current contactor

Technical Field

The utility model belongs to the technical field of direct current contactor and specifically relates to a direct current contactor.

Background

The direct current contactor is an electromagnetic switch with strong universality, can frequently switch on and off a direct current main circuit, can realize remote control, and is widely applied to the technical field of circuit control. The Chinese patent with the patent number of CN201810866993.9 entitled "a static iron core lamination riveting type DC contactor" discloses a DC contactor, which has two screws as static contacts, a plastic shell for insulation and protection, a mandrel inside, a component assembly composed of a static iron core, a movable iron core and the like, and an arc extinguish chamber, wherein the plastic shell has no other functions except for protecting internal components, and the installation of the internal components still depends on screws.

Disclosure of Invention

The utility model aims to solve the technical problem to the current situation of above-mentioned prior art, and provide a structural layout reasonable, easy dismounting, reliable and stable direct current contactor.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a direct current contactor comprises a main shell provided with a screw rod, wherein the main shell comprises a front table surface positioned on one side of an extending section of the screw rod, and the main shell is provided with an opening communicated with the screw rod and the outside; the periphery of the main shell body is provided with a plurality of groove bodies, the groove bodies are provided with bosses in the main shell body, and the bosses are provided with step surfaces in the direction deviating from the screw rod.

In order to optimize the technical scheme, the adopted measures further comprise:

the opening is opposite to the end part of the screw rod, and the opening is covered with an end cover.

The groove body is parallel to the screw rod.

The groove body is provided with an opening on the front table surface.

The inner wall of the groove body is arc-shaped.

The main shell and the screw rod are detachable, and the main shell is provided with a first round hole sleeved on the screw rod in a penetrating way; the groove body is matched with the outer diameter of the screw rod.

The number of the groove bodies is 4, and the groove bodies are annularly arranged on the periphery of the main shell at equal intervals.

Compared with the prior art, the direct current contactor of the utility model comprises a main shell provided with a screw rod, wherein the main shell comprises a front table surface positioned at one side of the extending section of the screw rod, and the main shell is provided with an opening for communicating the screw rod with the outside; the periphery of the main shell body is provided with a plurality of groove bodies, the groove bodies are provided with bosses in the main shell body, and the bosses are provided with step surfaces in the direction deviating from the screw rod. The exposed part of the screw rod is screwed with a nut and washer assembly, and the nut and washer assembly is used for wiring. The end cover is detached from the main shell, the screw rod can be taken out from the opening after the nut gasket assembly is detached, the boss in the main shell can support the component assembly, an arc extinguish chamber is arranged between the component assembly and the screw rod to allow the mandrel to move, and the boss can strengthen the deformation resistance of the main shell. If the screw is made detachable and replaceable, the groove body can provide a storage position for the standby screw. The utility model discloses a structural configuration is reasonable, easy dismounting, reliable and stable.

Drawings

Fig. 1 is a schematic front structural view of the present invention;

FIG. 2 is a schematic view in full section in the direction B-B of FIG. 1;

FIG. 3 is an exploded schematic view of FIG. 2;

fig. 4 is a schematic perspective view of the component assembly removed in the direction a-a in fig. 1.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Wherein the reference numerals are: the structure comprises an end cover 1, a screw 2, a main shell 3, a round hole 31, an opening 33, a front table surface 34, a screw rod 4, a nut and gasket assembly 6, a component assembly 7, a groove body 12, a step surface 121 and a boss 122.

In an embodiment, as shown in fig. 1 to 4, a dc contactor includes a main housing 3 provided with a screw rod 4, the main housing 3 includes a front surface 34 located at one side of an extending section of the screw rod 4, the main housing 3 is provided with an opening 33 communicating the screw rod 4 with the outside; the periphery of the main casing 3 is provided with a plurality of grooves 12, the grooves 12 are formed with bosses 122 in the main casing 3, and the bosses 122 are provided with step surfaces 121 in the direction departing from the screw rod 4. The exposed part of the screw rod 4 is screwed with a nut and washer assembly 6, and the nut and washer assembly 6 is used for wiring. The end cap 1 is detached from the main housing 3, and then the nut and washer assembly 6 is detached, the screw rod 4 can be taken out from the opening 33, the boss 122 in the main housing 3 can be abutted against the component assembly 7, so that a fixed space is formed between the component assembly 7 and the screw rod 4 for movement of the mandrel, and the boss 122 can strengthen the deformation resistance of the main housing 3. If the screw 4 is made to be detachable and replaceable, the groove body 12 can provide a storage place for the spare screw 4. The utility model discloses a structural configuration is reasonable, easy dismounting, reliable and stable.

In the embodiment, as shown in fig. 2, 3 and 4, the opening 33 faces the end of the screw rod 4, and the opening 33 is covered with the end cap 1. The component assembly 7 is pushed in from the opening 33 until the component assembly 7 abuts the step surface 121. The end cap 1 is fixed to the main housing 3 by screws 2.

In an embodiment, as shown in fig. 3, the groove 12 is parallel to the screw 4, and when the screw 4 or the nut and washer assembly 6 is rotated, the main housing 3 can be effectively prevented from rotating by clamping a finger in the groove 12.

In one embodiment, as shown in fig. 1, the slot body 12 has an opening on the front surface 34, so that the main housing 3 can be easily inserted into a protruding fixture matching the slot body 12.

In the embodiment, as shown in fig. 1 and 4, the inner wall of the tank body 12 is arc-shaped. The arc-shaped tank body 12 is less prone to accumulating dirt than other tank bodies having four corners.

In the embodiment, as shown in fig. 3, the main housing 3 and the screw rod 4 are detachable, the main housing 3 is provided with a first circular hole 31 sleeved on the screw rod 4, and the screw rod 4 of different materials can be replaced according to the material of a specific wire; the groove body 12 matches the outer diameter of the screw 4. The idle screw 4 can be clamped in the groove 12 for standby. The screw 4 can be inserted into the groove 12 from the side of the main casing 3, or can be inserted into the groove 12 from the front surface 34 side.

In the embodiment, as shown in fig. 1, there are 4 slots 12, and they are arranged around the outer circumference of the main housing 3 at equal intervals.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a direct current contactor, is including main casing body (3) that is equipped with screw rod (4), main casing body (3) including being located screw rod (4) and stretching out positive mesa (34) of section one side, characterized by: the main shell (3) is provided with an opening (33) for communicating the screw rod (4) with the outside; the periphery of the main shell body (3) is provided with a plurality of groove bodies (12), the groove bodies (12) are provided with bosses (122) in the main shell body (3), and the bosses (122) are provided with step surfaces (121) in the direction deviating from the screw rod (4).

2. A dc contactor as claimed in claim 1, wherein: the opening (33) is opposite to the end part of the screw rod (4), and the end cover (1) is arranged on the opening (33) in a covering mode.

3. A dc contactor as claimed in claim 2, wherein: the groove body (12) is parallel to the screw rod (4).

4. A dc contactor as claimed in claim 3, wherein: the groove body (12) is provided with an opening on the front table surface (34).

5. The direct current contactor as claimed in claim 4, wherein: the inner wall of the groove body (12) is arc-shaped.

6. The direct current contactor as claimed in claim 5, wherein: the main shell (3) and the screw rod (4) are detachable, and a first round hole (31) sleeved on the screw rod (4) is arranged in the main shell (3) in a penetrating manner; the groove body (12) is matched with the outer diameter of the screw rod (4).

7. A dc contactor as claimed in claim 6, wherein: the number of the groove bodies (12) is 4, and the groove bodies are annularly arranged on the periphery of the main shell (3) at equal intervals.