CN217690992U

CN217690992U - Novel normally open type direct current contactor

Info

Publication number: CN217690992U
Application number: CN202221327744.0U
Authority: CN
Inventors: 周勃
Original assignee: Zhejiang Sayoon Electric Co ltd
Current assignee: Zhejiang Sayoon Electric Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-10-28
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a novel normally open type direct current contactor, including shell and lower reset spring, the inside of shell is provided with reset spring, and goes up reset spring's lower extreme and be connected with the fixed axle, the upper and lower both ends outside of fixed axle is provided with the jump ring, and the outside of fixed axle from last to having set gradually movable contact spring, upper push rod cover and lower push rod cover down, reset spring is located the lower extreme of movable contact spring down, the outside of upper push rod cover is provided with the upper fixed plate. This novel normally open type direct current contactor compares with current ordinary direct current contactor, and the movable contact spring does not adopt traditional rectangle shape, and what adopt is the ring shape piece of gasket shape, will change the position at random with copper screw contact point during the action, can increase electric life like this, drive the fixed axle action through the electromagnetic component, drive the movable contact spring action again, realize movable contact spring and copper screw switch-on, the fixed axle two utilizes the assembly of the fixed convenient product of jump ring.

Description

Novel normally open type direct current contactor

Technical Field

The utility model relates to a direct current contactor technical field specifically is a novel normally open type direct current contactor.

Background

When the contactor attracts the back of coil circular telegram, the arc contact is at first closed, then main contact closure, and when the contactor is disconnected, the order is just opposite, and main contact is disconnected at first, then the arc contact just parts. Therefore, the electric arc is generated on the arc contact, the direct current contactor adopts a magnetic quenching method, the arc blowing coil and the static arc contact are connected in series, and when the contactor is closed, the arc blowing coil and the arc contact loop are in short circuit connection with the main contact.

The contact of current direct current contactor adopts is rectangle contact, and easy one is electrocuted and often is worn and torn the life-span, and the user demand that can not be fine satisfies people carries out technical innovation on current direct current contactor basis to above-mentioned condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel normally open type direct current contactor to provide general not fine user demand problem who satisfies people in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel normally open type direct current contactor, includes shell and lower reset spring, the inside of shell is provided with reset spring, and goes up reset spring's lower extreme and be connected with the fixed axle, the upper and lower both ends outside of fixed axle is provided with the jump ring, and the outside of fixed axle has set gradually movable contact spring, upper push rod cover and lower push rod cover from last to down, lower reset spring is located the lower extreme of movable contact spring, the outside of upper push rod cover is provided with the top board, both sides are provided with the rivet around the lower extreme of shell.

Furthermore, the front end and the rear end of the shell are provided with first nuts, and the lower end of each first nut is provided with a second elastic cushion.

Furthermore, the lower end of the lower push rod sleeve is provided with a small gasket, and the outer part of the lower push rod sleeve is provided with a lower fixing plate.

Furthermore, the lower extreme of shell is provided with the silicon rubber seal gasket, and the right-hand member of silicon rubber seal gasket is provided with the rubber pad, the lower extreme of silicon rubber seal gasket is provided with the mounting bracket.

Furthermore, the left side and the right side of the shell are provided with second nuts, copper screws are arranged inside the second nuts, screw binding posts are arranged at the lower ends of the copper screws, and second elastic pads are arranged at the lower ends of the second nuts.

Further, the upper end of bottom plate is provided with coil pack, and coil pack's upper end is provided with the tile, the upper end of tile is provided with the soldering lug, and the upper end of soldering lug is provided with connecting spring.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the movable contact spring of the utility model does not adopt the traditional rectangular shape, but adopts the circular ring-shaped sheet with the shape of a gasket, and the contact point with the copper screw can randomly change the position during the action, thereby prolonging the electric service life;

2. the utility model drives the fixed shaft to act through the electromagnetic component, then drives the movable contact spring to act, realizes the connection of the movable contact spring and the copper screw, and the two ends of the fixed shaft are fixed by the snap spring to facilitate the assembly of the product;

3. the utility model discloses electromagnetic circuit system parcel adopts the tile of two half moon shapes to constitute a 360 degrees ring metallic conductor, the easy to assemble installation at coil assembly outside magnetic circuit accessory.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1. a housing; 2. a silicon rubber seal ring pad; 3. a rubber pad; 4. a coil assembly; 5. a mounting frame; 6. a tile; 7. a small pad; 8. a lower fixing plate; 9. an upper fixing plate; 10. a movable contact spring; 11. soldering lugs; 12. an upper return spring; 13. a lower return spring; 14. a connecting spring; 15. a push rod sleeve is arranged; 16. a lower push rod sleeve; 17. a fixed shaft; 18. copper screws; 19. a screw binding post; 20. riveting; 21. a first spring washer; 22. a first nut; 23. a second spring pad; 24. a second nut; 25. and a clamp spring.

Detailed Description

As shown in fig. 1, a novel normally open type dc contactor comprises a housing 1 and a lower reset spring 13, an upper reset spring 12 is arranged inside the housing 1, the movable contact piece 12 does not adopt a traditional rectangular shape, but adopts a circular ring-shaped piece in a gasket shape, and the contact point with a copper screw 20 can randomly change position during action, so that the electrical life can be prolonged, the lower end of the upper reset spring 12 is connected with a fixed shaft 17, snap springs 25 are arranged outside the upper and lower ends of the fixed shaft 17, the movable contact piece 10, an upper push rod sleeve 15 and a lower push rod sleeve 16 are sequentially arranged outside the fixed shaft 17 from top to bottom, the lower reset spring 13 is located at the lower end of the movable contact piece 10, an upper fixed plate 9 is arranged outside the upper push rod sleeve 15, a silicone rubber seal gasket 2 is arranged at the lower end of the housing 1, a rubber pad 3 is arranged at the right end of the silicone seal gasket 2, and a mounting bracket 5 is arranged at the lower end of the silicone seal gasket 2.

As shown in fig. 1-2, a first nut 22 is disposed at the front end and the rear end of the housing 1, a second elastic washer 23 is disposed at the lower end of the first nut 22, rivets 20 are disposed at the front end and the rear end of the lower end of the housing 1, a small gasket 7 is disposed at the lower end of the lower push rod sleeve 16, a lower fixing plate 8 is disposed outside the lower push rod sleeve 16, second nuts 24 are disposed at the left end and the right end of the housing 1, a copper screw 18 is disposed inside the second nut 24, the fixing shaft 17 is driven by an electromagnetic assembly to move, and then the movable contact 10 is driven to move, so that the movable contact 10 and the copper screw 18 are connected, two ends of the fixing shaft 17 are fixed by a snap spring 25 to facilitate assembly of the product, a screw binding post 19 is disposed at the lower end of the copper screw 18, a second elastic washer 23 is disposed at the lower end of the second nut 24, a coil assembly 4 is disposed at the upper end of the lower fixing plate 8, a tile 6 is disposed at the upper end of the coil assembly 4, a magnetic loop system is wrapped outside the coil assembly 4, a 360-degree ring metal conductor is formed by two half-moon-shaped tiles 6, which facilitates assembly installation, a welding piece 11 is disposed at the upper end of the tile 6, and a connecting spring 14 is disposed at the upper end of the welding piece 11.

The working principle is as follows: when the novel normally open type direct current contactor is used, the equipment comprises a contact assembly, an electromagnetic assembly and a protective shell, wherein the contact assembly comprises a copper screw 18 and a movable contact piece 10, the electromagnetic assembly comprises a coil assembly 4, an upper push rod sleeve 15, a lower push rod sleeve 16, a fixed shaft 17, an upper fixed plate 8, a lower fixed plate 9, a clamp spring 17, a small gasket 7, a tile 6, an upper reset spring 12 and a lower reset spring 13, the electromagnetic assembly drives the fixed shaft 17 to act, then the movable contact piece 10 is driven to act, the movable contact piece 10 and the copper screw 18 are connected, two ends of the fixed shaft 17 are fixed by the clamp spring 25 to facilitate assembly of products, the movable contact piece 10 of the product does not adopt a traditional rectangular shape, but adopts a circular ring-shaped gasket, the contact point between the movable contact piece and the copper screw 18 can randomly change positions during action, so that the electric service life can be prolonged, the electromagnetic loop system wraps a magnetic loop accessory outside the coil assembly 4 and adopts two half-moon-shaped contact pieces 6 to form a 360-degree ring metal conductor, so that the movable contact piece and the wiring terminal of the magnetic loop system wraps up a wiring board and the wiring board, so that the wiring board can be connected to a simple lead wire mounting rack 11, and a simple wire connection process of a silicon rubber mounting rack 11, and a simple wire connection process of a simple wire connection process of a wire connection wire is realized by using a wire connection mounting rack 11, and a simple wire connection process of a simple wire connection rack 11, and a simple wire connection rack 11.

Claims

1. The utility model provides a novel normally open type direct current contactor, a serial communication port, including shell (1) and lower reset spring (13), the inside of shell (1) is provided with reset spring (12), and goes up the lower extreme of reset spring (12) and be connected with fixed axle (17), the upper and lower both ends outside of fixed axle (17) is provided with jump ring (25), and the outside of fixed axle (17) from last to having set gradually movable contact (10), upper push rod cover (15) and lower push rod cover (16) down, reset spring (13) are located the lower extreme of movable contact (10) down, the outside of upper push rod cover (15) is provided with an upper fixed plate (9), both sides are provided with rivet (20) around the lower extreme of shell (1).

2. The novel normally open type direct current contactor according to claim 1, characterized in that the front and rear ends of the housing (1) are provided with first nuts (22), and the lower end of the first nut (22) is provided with a second spring washer (23).

3. The novel normally open type dc contactor according to claim 1, wherein the lower end of said lower push rod sleeve (16) is provided with a small gasket (7), and the outer portion of said lower push rod sleeve (16) is provided with a lower fixing plate (8).

4. A novel normally open dc contactor according to claim 1, characterized in that the lower end of said housing (1) is provided with a silicone rubber gasket (2), and the right end of said silicone rubber gasket (2) is provided with a rubber pad (3), and the lower end of said silicone rubber gasket (2) is provided with a mounting bracket (5).

5. The novel normally open type direct current contactor according to claim 1, characterized in that the second nuts (24) are arranged on the left and right sides of the outer shell (1), the copper screws (18) are arranged inside the second nuts (24), the lower ends of the copper screws (18) are provided with screw terminals (19), and the lower ends of the second nuts (24) are provided with second elastic pads (23).

6. A novel normally open dc contactor according to claim 3, characterized in that the upper end of said lower fixing plate (8) is provided with a coil assembly (4), and the upper end of said coil assembly (4) is provided with a tile (6), the upper end of said tile (6) is provided with a soldering lug (11), and the upper end of said soldering lug (11) is provided with a connecting spring (14).