CN212277107U

CN212277107U - Contact point

Info

Publication number: CN212277107U
Application number: CN202021231095.5U
Authority: CN
Inventors: 王太平
Original assignee: Beijing Sanlaite Electromechanical Equipment Co Ltd
Current assignee: Beijing Sanlaite Electromechanical Equipment Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-01
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a contact, it includes movable contact and stationary contact, the movable contact sets up the upside at the stationary contact, just the stationary contact includes the static contact and is used for the bearing portion of fixed static contact, bearing portion includes first bearing rod and second bearing rod, is fixed connection between the tip of first bearing rod and second bearing rod, and just first bearing rod sets up with the different face of second bearing rod, and the junction at first bearing rod and second bearing rod is installed to the static contact. The application has the effect of good fitting when moving and static contacts are contacted.

Description

Contact point

Technical Field

The application relates to the field of electrical equipment, in particular to a contact.

Background

Relay-like structures or devices are used in many electrical appliances and contacts are used in the structures or devices to ensure that the structures or devices function effectively. The contact structure in the existing structure or device is simple, the effect is not ideal enough, the two contacts can not be well jointed when in contact, and the due function of the contact can not be well played.

SUMMERY OF THE UTILITY MODEL

In order to enable a better fit between two contacts, the present application provides a contact.

The application provides a contact adopts following technical scheme:

the contact comprises a movable contact and a fixed contact, wherein the movable contact is arranged on the upper side of the fixed contact, the fixed contact comprises a fixed contact and a bearing part for fixing the fixed contact, the bearing part comprises a first bearing rod and a second bearing rod, the end parts of the first bearing rod and the second bearing rod are fixedly connected, the first bearing rod and the second bearing rod are arranged in a different surface mode, and the fixed contact is arranged at the connecting part of the first bearing rod and the second bearing rod.

By adopting the technical scheme, the bearing part for bearing the static contact is formed between the first bearing rod and the second bearing rod, the static contact is arranged on the bearing part, so that the static contact is accurately positioned and arranged, and then the movable contact and the static contact are accurately positioned and contacted, so that the movable contact and the static contact can be better attached, and meanwhile, the displacement of the movable contact relative to the static contact, which is horizontally displaced, can be reduced under the limitation of the bearing part, so that the generation of electric arcs is reduced, and the service life of the movable contact and the static contact is prolonged.

Preferably, the tip that deviates from first bearing rod of second bearing rod is the arc setting, and second bearing plate deviates from its tip arc bellied one side and is provided with the coupling assembling for installing second bearing rod, coupling assembling is including setting up the joint pole on second bearing rod, contained angle between joint pole and the second bearing rod is the acute angle setting, forms the joint chamber that is used for joint installation stationary contact between joint pole and the second bearing rod.

Through adopting above-mentioned technical scheme, when the staff used this coupling assembling to install first bearing rod on electrical apparatus such as relay, the joint chamber that forms between accessible chucking board and the second bearing rod was installed second bearing rod on the shell support of relay, simple and practical.

Preferably, the joint board outwards extends to have a vertical cross section to be the arch of right angle shape on the lateral wall of second bearing rod, the rigid coupling has a connection magnetic stripe in the arch, the vertical cross section of connecting the magnetic stripe is L shape setting, and two lateral walls of connecting magnetic stripe mutually perpendicular can paste and lean on in the arch and with protruding fixed connection.

Through adopting above-mentioned technical scheme, the arch of right angle shape can be better install the joint board on electrical components such as relay, and the rigid coupling has the connection magnetic stripe in the arch simultaneously, further promotes the installation stability of joint board.

Preferably, a first clamping groove used for installing and connecting the clamping plate is formed in the side wall of the clamping plate, which is away from the protrusion.

Through adopting above-mentioned technical scheme, the setting in first joint groove is convenient for install and be connected the joint board with other electrical elements in electrical apparatus such as relay.

Preferably, the clamping plate is provided with a second clamping groove away from the side wall of the bulge, the second clamping groove is positioned at the lower side of the first clamping groove, and the depth of the second clamping groove is greater than that of the first clamping groove.

Through adopting above-mentioned technical scheme, the setting in second joint groove can promote the suitability of joint board, and the joint board of being convenient for installs and is connected with the electric elements of other different specifications in electrical apparatus such as relay.

Preferably, first joint groove and second joint groove deviate from the open-ended lateral wall and all are the arc setting, and the arc arch in second joint groove is greater than the arc arch in first joint groove.

Through adopting above-mentioned technical scheme, first joint groove and second joint groove deviate from the open-ended lateral wall and all are the arc setting, further promote the stability of being connected between first joint groove and second joint groove and the electrical component.

Preferably, the movable contact includes a movable contact and a fixing rod for fixing the movable contact.

Through adopting above-mentioned technical scheme, install the moving contact on the dead lever, reducible move, the clearance between the stationary contact, further promote the contact effect between the moving, stationary contact.

Preferably, the edges of the ends of the moving contact and the fixed contact are rounded.

By adopting the technical scheme, the edge of the movable contact and the edge of the static contact are not easy to generate the edge discharge phenomenon due to the arrangement of the fillet, so that the contacts are safer to use, the service life of the contacts is prolonged, and the safety of equipment is ensured.

To sum up, the application comprises the following beneficial technical effects:

1. the static contact is arranged on the bearing part, so that the static contact can be accurately positioned and arranged, the movable contact can be accurately positioned and contacted with the static contact, the movable contact and the static contact can be better attached, and the displacement of the movable contact relative to the static contact, which generates horizontal displacement, can be reduced under the limitation of the bearing part, so that the generation of electric arcs is reduced, and the service life of the movable contact and the static contact is prolonged;

2. the moving contact is arranged on the fixed rod, so that the gap between the moving contact and the static contact can be reduced, and the contact effect between the moving contact and the static contact is further improved;

3. the edge of the movable contact and the edge of the static contact are not easy to generate the edge discharge phenomenon due to the arrangement of the fillet, so that the contacts are safer to use, the service life of the contacts is prolonged, and the safety of equipment is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a side view of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure, 1, a movable contact; 11. a moving contact; 12. fixing the rod; 121. an arc extinguishing plate; 122. a first connecting rod; 123. a second connecting rod; 1231. mounting holes; 2. a stationary contact; 21. static contact; 22. a bearing part; 221. a first support rod; 222. a second support rod; 3. a conductive layer; 4. a conductive anti-melt layer; 5. a connecting assembly; 51. a clamping and connecting rod; 52. a clamping cavity; 53. a protrusion; 54. connecting the magnetic strips; 55. a first clamping groove; 56. a second clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a contact. Referring to fig. 1 and 2, a contact includes a moving contact 1 and three stationary contacts 2 disposed at a lower side of the moving contact 1, in this embodiment of the present disclosure, three stationary contacts 2 are disposed, three stationary contacts 2 are stacked one on another, a length formed by the three stationary contacts 2 is the same as a length of the moving contact 1, the three stationary contacts 2 reduce a load of a single stationary contact 21, and at the same time, a contact area between the moving contact 11 and the stationary contact 21 can be increased, a large resistance generated between the moving contact 11 and the stationary contact 21 when contacting is reduced, and thus, a possibility that a large amount of heat generated between the moving contact 11 and the stationary contact 21 is melted and bonded is reduced; the movable contact 1 comprises a movable contact 11 and a fixed rod 12 fixedly connected to the upper side of the movable contact 11; the stationary contact 2 includes a stationary contact 21 and a supporting portion 22 for fixing the stationary contact 21.

Referring to fig. 2 and 3, the ends of the moving contact 11 and the static contact 21 are disposed opposite to each other, and the moving contact 11 or the static contact 21 includes a conductive layer 3 and a conductive anti-melting layer 4 disposed outside the conductive layer 3; the conductive layer 3 is made of silver-copper alloy, and the conductive layer 3 made of the silver-copper alloy not only has excellent conductive performance, but also has good arc erosion resistance and fusion welding resistance, good voltage resistance and strong breaking capacity, so that the contact has excellent use performance; the edge of the end part of the conductive anti-melting layer 4 is provided with a fillet, so that the edge of the movable contact and the fixed contact 2 is not easy to generate an edge discharge phenomenon, and the contacts are safer to use; the conductive anti-melting layer 4 is a silver tin oxide layer, and the silver tin oxide has higher melting point and boiling point and higher hardness, so that the anti-sticking property is improved, and the using amount of silver can be saved; the lateral wall that two electrically conductive anti-melting layers 4 contacted each other sets up for the arc, and two electrically conductive anti-melting layers 4's arc is protruding 53 sets up in opposite directions, has great space between the electrically conductive anti-melting layer 4 that the arc set up to be convenient for move, the heat dissipation of 2 contact surfaces of stationary contact.

Referring to fig. 1 and 2, an arc-extinguishing plate 121 is fixedly connected to a side wall of one side of the fixed rod 12, the cross section of the arc-extinguishing plate 121 is arc-shaped, an arc-shaped protrusion 53 of the arc-extinguishing plate 121 is arranged away from the fixed rod 12, the fixed connection point of the arc-extinguishing plate 121 and the fixed rod 12 is arranged at one side of the movable contact 1, and the arc-extinguishing plate 121 can guide and eliminate an arc generated when the movable contact 2 and the fixed contact 2 are far away from each other, so that the influence of the arc on the use of the contacts is reduced; the cross-section of the arc plates 121 decreases gradually from the end thereof contacting the fixing bar 12 to the other end of the arc plates 121, so that the occupied volume of the arc plates 121 can be reduced while ensuring arc extinguishing performance of the arc plates 121.

Referring to fig. 1 and 2, the upper end of the fixing rod 12 is fixedly connected with a mounting assembly, the mounting assembly includes a first connecting rod 122 disposed on the fixing rod 12, and the end of the first connecting rod 122 away from the fixing rod 12 is fixedly connected with a second connecting rod 123; the first connecting rod 122 and the fixed rod 12 are obliquely arranged, the second connecting rod 123 is parallel to the fixed rod 12, and the first connecting rod 122 and the second connecting rod 123 are matched with each other, so that the working position and the mounting position of the movable contact 1 can be far away from each other, the influence of other electric elements in the relay on the movable contact 1 is reduced, meanwhile, the movable contact 2 and the fixed contact 2 have small distances, and the contact effect between the movable contact 2 and the fixed contact 2 is better; two mounting holes 1231 located on the same horizontal plane are formed in the side wall of the second connecting rod 123, so that the worker can conveniently mount the first connecting rod 122.

Referring to fig. 1 and 2, the supporting portion 22 includes a first supporting rod 221 and a second supporting rod 222, ends of the first supporting rod 221 and the second supporting rod 222 are fixedly connected, the first supporting rod 221 and the second supporting rod 222 are arranged in different planes, and an included angle between the first supporting rod 221 and the second supporting rod 222 is an obtuse angle; the static contact 21 is fixedly connected with the connection position of the first supporting rod 221 and the second supporting rod 222; the static contact 21 is arranged on the bearing part 22, so that the static contact 21 can be accurately positioned and arranged, the movable contact 1 and the static contact 2 can be accurately positioned and contacted, the movable contact 2 and the static contact 2 can be better attached, and meanwhile, the displacement of the movable contact 1 relative to the static contact 2, which is horizontally displaced, can be reduced under the limitation of the bearing part 22, so that the generation of electric arcs is reduced, and the service life of the movable contact 2 and the service life of the static contact 2 are prolonged.

Referring to fig. 1 and 2, an end portion of the second support rod 222 departing from the first support rod 221 is arc-shaped, and a side of the second support plate departing from the arc-shaped projection 53 of the end portion is provided with a connecting assembly 5 for mounting the second support rod 222. The connecting assembly 5 comprises a clamping rod 51 fixedly connected to the second bearing rod 222, an included angle formed between the clamping rod 51 and the second bearing rod 222 is an acute angle, and a clamping cavity 52 for clamping and mounting the stationary contact 2 is formed between the clamping rod 51 and the second bearing rod 222; the side wall of the clamping plate facing the second bearing rod 222 is outwardly extended with a protrusion 53 with a right-angled vertical section, the protrusion 53 is fixedly connected with a connecting magnetic strip 54, the vertical section of the connecting magnetic strip 54 is arranged in an L shape, two mutually perpendicular side walls of the connecting magnetic strip 54 can be attached to the protrusion 53 and fixedly connected with the protrusion 53, the right-angled protrusion 53 can better install the clamping plate on electrical elements such as relays, and meanwhile, the protrusion 53 is fixedly connected with the connecting magnetic strip 54, so that the installation stability of the clamping plate is further improved; a first clamping groove 55 for installing and connecting the clamping plate is formed in the side wall of the clamping plate, which is far away from the bulge 53; a second clamping groove 56 is formed in the side wall of the clamping plate, which is far away from the protrusion 53, the second clamping groove 56 is positioned at the lower side of the first clamping groove 55, and the depth of the second clamping groove 56 is greater than that of the first clamping groove 55; the side walls of the first clamping groove 55 and the second clamping groove 56, which are far away from the opening, are both arc-shaped, and the arc-shaped bulge 53 of the second clamping groove 56 is larger than the arc-shaped bulge 53 of the first clamping groove 55; the first and second engaging grooves 55 and 56 facilitate mounting and connection of the engaging plate to other electrical components in an electrical appliance such as a relay.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A contact, characterized by: the movable contact is arranged on the upper side of the fixed contact (2), the fixed contact (2) comprises a fixed contact (21) and a bearing part (22) used for fixing the fixed contact (21), the bearing part (22) comprises a first bearing rod (221) and a second bearing rod (222), the end parts of the first bearing rod (221) and the second bearing rod (222) are fixedly connected, the first bearing rod (221) and the second bearing rod (222) are arranged in different planes, and the fixed contact (21) is arranged at the connecting part of the first bearing rod (221) and the second bearing rod (222).

2. A contact according to claim 1, wherein: the tip that deviates from first bearing pole (221) of second bearing pole (222) is the arc setting, and one side that second bearing board deviates from its tip arc arch (53) is provided with coupling assembling (5) that are used for installing second bearing pole (222), coupling assembling (5) are including joint pole (51) of setting on second bearing pole (222), contained angle between joint pole (51) and second bearing pole (222) is the acute angle setting, forms joint chamber (52) that are used for joint installation stationary contact (2) between joint pole (51) and second bearing pole (222).

3. A contact according to claim 2, wherein: the lateral wall of joint pole (51) orientation second bearing pole (222) goes up outside extension has a vertical cross section to be the arch (53) of right angle shape, the rigid coupling has one to connect magnetic stripe (54) on arch (53), the vertical cross section of connecting magnetic stripe (54) sets up for L shape, and two lateral walls of connecting magnetic stripe (54) mutually perpendicular can paste and lean on arch (53) and with arch (53) fixed connection.

4. A contact according to claim 3, wherein: and a first clamping groove (55) for installing and connecting the clamping plates is formed in the side wall of the clamping rod (51) departing from the protrusion (53).

5. A contact according to claim 4, wherein: the lateral wall of joint pole (51) deviating from arch (53) has been seted up second joint groove (56), second joint groove (56) are located the downside in first joint groove (55), and the degree of depth in second joint groove (56) is greater than the degree of depth in first joint groove (55).

6. A contact according to claim 5, wherein: first joint groove (55) and second joint groove (56) deviate from the open-ended lateral wall and all are the arc setting, and arc arch (53) of second joint groove (56) are greater than arc arch (53) of first joint groove (55).

7. A contact according to claim 6, wherein: the movable contact (1) comprises a movable contact (11) and a fixing rod (12) used for fixing the movable contact (11).

8. A contact according to claim 7, wherein: the edges of the ends of the moving contact (11) and the fixed contact (21) are rounded.