CN222483234U - Contactor - Google Patents

Abstract

Embodiments of the present disclosure provide a contactor. The contactor comprises a fixed contact, a movable contact assembly, a conductive piece and a driving assembly, wherein the fixed contact is connected with a first wiring piece, the movable contact assembly can be switched between a closing position and a separating position, the movable contact assembly comprises a rotary support and a movable contact arm connected with the rotary support, the movable contact arm is matched with the fixed contact, one end of the conductive piece is connected with the end, away from the fixed contact, of the movable contact arm, the other end of the conductive piece is connected with a second wiring piece, the conductive piece can deform in the process that the movable contact assembly is switched between the closing position and the separating position, and the driving assembly comprises a driving shaft matched with the rotary support and can move linearly and drive the rotary support to rotate through the driving shaft so that the movable contact assembly can be switched between the closing position and the separating position.

Description

Contactor

Technical Field

Embodiments of the present disclosure relate generally to the field of electrical equipment technology, and more particularly, to a contactor.

Background

The conventional contactor generally adopts a double-breakpoint structure, the closing and breaking functions of the pair of movable contact assemblies and the pair of fixed contact assemblies are realized, the contact resistance of the contactor adopting the double-breakpoint structure is large, and the single-breakpoint contactor can solve the problem.

However, the moving contact arm in the single-breakpoint contactor directly rotates under the drive of the drive assembly, and the conventional single-breakpoint contactor has poor stability due to low mechanical property and easy abrasion of the moving contact arm.

Disclosure of utility model

It is an object of the present disclosure to provide a contactor to at least partially solve the above-mentioned problems.

In a first aspect of the disclosure, a contactor is provided, the contactor comprises a fixed contact connected with a first wiring member, a movable contact assembly capable of being switched between a closing position and a separating position, the movable contact assembly comprises a rotary support and a movable contact arm connected with the rotary support and matched with the fixed contact, one end of the conductive member is connected with the end, facing away from the fixed contact, of the movable contact arm, the other end of the conductive member is connected with a second wiring member, the conductive member can be deformed during switching of the movable contact assembly between the closing position and the separating position, and a driving assembly comprises a driving shaft matched with the rotary support, and the driving assembly can move linearly and drive the rotary support to rotate through the driving shaft so as to switch the movable contact assembly between the closing position and the separating position.

According to the embodiment of the disclosure, the fixed contact is connected to the first wiring member, the moving contact arm is matched with the fixed contact, one end of the conductive member is connected with the moving contact arm, the other end of the conductive member is connected to the second wiring member, and the conductive member is capable of deforming. Therefore, the contactor can replace one of double break points by utilizing the conductive piece, is beneficial to reducing contact resistance and improving the performance of the contactor, and simultaneously, can reduce the production cost due to the reduction of contacts. On the other hand, the driving shaft of the driving assembly firstly drives the rotating bracket to rotate, and then the moving contact arm rotates along with the rotating bracket, so that compared with the driving assembly directly driving the moving contact arm, the stability of the contactor according to the embodiment of the disclosure is improved.

In some embodiments, the rotating bracket is provided with a movable hole, the driving shaft is located in the movable hole, and the size of the movable hole is larger than that of the driving shaft, wherein the driving shaft can move in the movable hole and drive the rotating bracket to rotate under the condition that the driving assembly moves linearly.

In some embodiments, the contactor further comprises a mount, the swivel bracket being rotatably connected to the mount.

In some embodiments, the contactor further comprises a rotation shaft passing through the rotation bracket and the mount to enable the rotation bracket to rotate relative to the mount, and the rotation shaft is disposed on an end of the rotation bracket adjacent to the conductive member.

In some embodiments, the end of the moving contact arm facing away from the conductive member and the drive shaft are on the same side of the rotational axis, and the end of the moving contact arm facing away from the conductive member is further from the rotational axis than the drive shaft.

In some embodiments, the moving contact arm is fixedly connected with the rotating bracket through a limiting shaft, so that the moving contact arm can rotate along with the rotating bracket.

In some embodiments, the rotating bracket comprises a top plate, and a first side plate and a second side plate arranged on the top plate, wherein the first side plate is opposite to the second side plate, and the movable contact arm is positioned between the first side plate and the second side plate.

In some embodiments, the rotating shafts are arranged in pairs, one of the rotating shafts in a pair passing through the first side plate and the mounting base, and the other rotating shaft in a pair passing through the second side plate and the mounting base.

In some embodiments, the movable holes are respectively arranged on the first side plate and the second side plate, one end of the driving shaft is arranged in the movable hole of the first side plate, and the other end of the driving shaft is arranged in the movable hole of the second side plate.

It should be understood that what is described in this section is not intended to limit the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, wherein like or similar reference numerals denote like or similar elements, in which:

fig. 1 illustrates a cross-sectional view of a contactor according to some embodiments of the present disclosure;

fig. 2 illustrates a schematic diagram of a second wire connection, a conductive member, and a moving contact assembly according to some embodiments of the present disclosure;

fig. 3 shows a schematic structural view of the contactor shown in fig. 1, in which the base is not shown.

Reference numerals illustrate:

100 is a contactor, 101 is a first wiring member, and 102 is a second wiring member;

1 is a movable contact assembly, 11 is a rotary bracket, 111 is a top plate, 112 is a first side plate, 113 is a second side plate, 114 is a movable hole, and 12 is a movable contact arm;

2 is a static contact, 3 is a conductive piece;

4 is a driving assembly, 41 is a driving shaft;

5 is a mounting seat, 6 is a rotating shaft, 7 is a limiting shaft, and 8 is a base.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object.

As described above, the conventional contactor generally adopts the double-break structure, the closing and opening functions are realized by closing and opening the pair of moving contact assemblies and the pair of fixed contact assemblies, the contact resistance of the contactor adopting the double-break structure is large, and the single-break contactor can solve the problem. However, the moving contact arm in the single-breakpoint contactor directly rotates under the drive of the drive assembly, and the conventional single-breakpoint contactor has poor stability due to low mechanical property and easy abrasion of the moving contact arm. Embodiments of the present disclosure provide a contactor 100 to at least partially solve the above-described problems. Hereinafter, the principles of the present disclosure will be described with reference to fig. 1 to 3.

Fig. 1 illustrates a cross-sectional view of a contactor 100 according to some embodiments of the present disclosure. As shown in fig. 1, the contactor 100 described herein generally includes a first wire member 101, a second wire member 102, a moving contact assembly 1, a stationary contact 2, a conductive member 3, a driving assembly 4, a mounting base 5, and a base 8. The base 8 serves as a mounting carrier for fixedly mounting the first wiring member 101, the second wiring member 102, and the mount 5.

The first and second connection members 101 and 102 are connected to a load and a power supply, respectively. In some embodiments, the first connector 101 may be connected to a load, and then the second connector 102 may be connected to a power source. In other embodiments, the first connector 101 may be connected to a power source, and then the second connector 102 may be connected to a load, without limitation.

Fig. 2 illustrates a schematic structural view of the second wire member 102, the conductive member 3, and the moving contact assembly 1 according to some embodiments of the present disclosure. As shown in fig. 1-2, in some embodiments, the stationary contact 2 is connected with a first wire member 101. The movable contact assembly 1 is matched with the fixed contact 2, and the movable contact assembly 1 can be switched between a closing position and a separating position relative to the fixed contact 2. One end of the conductive member 3 is connected to the moving contact assembly 1, and the other end of the conductive member 3 is connected to the second wire member 102.

It should be noted that, since the moving contact assembly 1 needs to be switched between the closing position and the opening position, the conductive member 3 can be deformed, so as to avoid the conductive member 3 interfering with the movement of the moving contact assembly 1, and further ensure that the moving contact assembly 1 is switched smoothly.

The connection manner of the conductive member 3 and the second wire member 102 according to the embodiment of the present disclosure may be various types of connection manners currently known or available in the future, and the embodiment of the present disclosure is not limited thereto. For example, in some embodiments, the conductive member 3 may be fastened with the second wire member 102 by a screw. In other embodiments, the conductive member 3 may be soldered to the second wire member 102, without limitation.

The conductive member 3 according to the embodiment of the present disclosure may be various types of conductive members 3 currently known or available in the future as long as having both conductive performance and deformable characteristics, to which the embodiment of the present disclosure is not limited. For example, in some embodiments, the conductive member 3 may be a annealed copper wire.

Fig. 3 shows a schematic structural view of the contactor 100 shown in fig. 1, in which the base 8 is not shown. As shown in fig. 1 and 3, the movable contact assembly 1 is rotatably connected to the mount 5 so as to be switchable between a closing position and a opening position.

With continued reference to fig. 1-3, in some embodiments, the moving contact assembly 1 may include a rotating bracket 11 and a moving contact arm 12. The swivel bracket 11 is rotatably connected to the mount 5. The movable contact arm 12 is connected to the rotating bracket 11 so that the movable contact arm 12 can rotate following the rotating bracket 11. The movable contact arm 12 is matched with the fixed contact 2. One end of the conductive member 3 is connected to an end of the movable contact arm 12 facing away from the fixed contact 2, and the other end of the conductive member 3 is connected to the second wiring member 102.

Since the stationary contact 2 is connected to the first wiring member 101, the movable contact arm 12 is mated with the stationary contact 2. One end of the conductive member 3 is connected to the movable contact arm 12, the other end of the conductive member 3 is connected to the second wiring member 102, and the conductive member 3 is deformable. Therefore, the contactor 100 according to the present disclosure can replace one of the double break points with the conductive member 3, which is advantageous in reducing contact resistance and improving performance of the contactor 100, and at the same time, can reduce production costs due to the reduction of contacts.

The connection manner of the movable contact arm 12 and the rotary bracket 11 according to the embodiment of the present disclosure may be various types of connection manners currently known or available in the future, and the embodiment of the present disclosure is not limited thereto. For example, referring to fig. 1 to 3, in some embodiments, the moving contact arm 12 and the rotating bracket 11 may be fixedly connected through the limiting shaft 7, so that the moving contact arm 12 can rotate along with the rotating bracket 11. In other embodiments, the moving contact arm 12 may be welded to the rotating bracket 11. In other embodiments, the movable contact arm 12 may be fastened to the rotary bracket 11 by a screw, which is not limited herein.

The connection manner of the conductive member 3 and the movable contact arm 12 according to the embodiment of the present disclosure may be various types of connection manners currently known or available in the future, and the embodiment of the present disclosure is not limited thereto. For example, in some embodiments, the conductive member 3 may be fastened with the movable contact arm 12 by a screw. In other embodiments, the conductive member 3 is soldered to the movable contact arm 12, without limitation.

With continued reference to fig. 1-3, in some embodiments, the rotational shaft 6 may pass through the rotational support 11 and the mount 5 to enable the rotational support 11 to rotate relative to the mount 5. The rotation shaft 6 may be provided on one end of the rotation bracket 11 adjacent to the conductive member 3.

With continued reference to fig. 1 and 3, in some embodiments, the drive assembly 4 may be mated with the moving contact assembly 1. The driving component 4 can move linearly to drive the moving contact component 1 to rotate. Obviously, during the rotation of the moving contact assembly 1, the moving contact assembly 1 can be switched between a closing position and a separating position.

With continued reference to fig. 1 and 3, in some embodiments, the drive assembly 4 includes a drive shaft 41 that mates with the rotating gantry 11. The driving component 4 can move linearly and drives the rotating bracket 11 to rotate through the driving shaft 41 so as to switch the movable contact component 1 between a closing position and a separating position.

With the above configuration, the drive shaft 41 first drives the rotation of the rotation bracket 11, and then the movable contact arm 12 rotates following the rotation bracket 11. The moving contact arm 12 is a conductive material, which has low mechanical properties and is easily worn. But the rotating bracket 11 is made of wear-resistant metal material and has high mechanical properties. Compared with the driving component 4 directly driving the moving contact arm 12, the problem of failure caused by abrasion and deformation of the moving contact arm 12 is avoided. The stability of the contactor 100 according to the embodiment of the present disclosure is improved.

With continued reference to fig. 1-3, in some embodiments, the swivel bracket 11 may be provided with a moveable aperture 114. The drive shaft 41 may be positioned within the moveable aperture 114. The size of the movable hole 114 needs to be larger than the size of the driving shaft 41. Thus, in the case where the driving unit 4 moves linearly up and down, the driving shaft 41 can move in the movable hole 114 to drive the rotation bracket 11 to rotate with respect to the mount 5.

The movable aperture 114 according to embodiments of the present disclosure may be an aperture of various shapes, as embodiments of the present disclosure are not limited in this regard. For example, in some embodiments, the moveable aperture 114 may extend along a straight line. In other embodiments, the movable aperture 114 may be an arcuate aperture, without limitation.

With continued reference to fig. 1-3, in some embodiments, since the rotating shaft 6 is disposed on an end of the rotating bracket 11 adjacent to the conductive member 3, and the end of the moving contact arm 12 facing away from the conductive member 3 and the drive shaft 41 are on the same side of the rotating shaft 6. Thereby, in the case where the end of the moving contact arm 12 facing away from the conductive member 3 is farther from the rotation shaft 6 than the driving shaft 41, if the driving shaft 41 moves by the same distance, the rotation distance of the end of the moving contact arm 12 facing away from the conductive member 3 at the same time is lifted due to the lever ratio, thereby improving the contact opening speed and the contact opening distance.

In addition, the contactor 100 according to the embodiment of the present disclosure can allow contact wear exceeding 1mm due to the lever ratio assuming contact wear of 1mm, thereby improving contact over-travel and improving performance and service life of the contactor 100.

With continued reference to fig. 3, in particular, the swivel bracket 11 may include a top plate 111, a first side plate 112, and a second side plate 113. The first side plate 112 and the second side plate 113 are disposed on the top plate 111. The first side plate 112 is disposed opposite to the second side plate 113. The movable contact arm 12 is located between the first side plate 112 and the second side plate 113, and the movable contact arm 12 is fixed with both the first side plate 112 and the second side plate 113. This improves the structural strength and stability of the rotating bracket 11.

Since the swivel bracket 11 includes a pair of side plates, the swivel shaft 6 may be one in some embodiments, and the swivel shaft 6 passes through the first side plate 112, the mount 5, and the second side plate 113 at the same time. With continued reference to fig. 3, in some embodiments, the rotating shafts 6 may be arranged in pairs, and correspondingly, the mounting seats 5 are symmetrical. One rotation shaft 6 of the pair of rotation shafts 6 may pass through the first side plate 112 and the mount 5, and the other rotation shaft 6 of the pair of rotation shafts 6 may pass through the second side plate 113 and the mount 5. It can be seen that the rotation of the rotating bracket 11 is more stable since the first side plate 112 and the second side plate 113 are simultaneously rotated with respect to the mount 5.

Since the swivel bracket 11 includes a pair of side plates, the drive shaft 41 may be one in some embodiments. The first side plate 112 and the second side plate 113 are respectively provided with movable holes 114. One end of the driving shaft 41 is disposed in the movable hole 114 of the first side plate 112, and the other end of the driving shaft 41 is disposed in the movable hole 114 of the second side plate 113.

Of course, the rotating bracket 11 may further include a top plate 111 and a first side plate 112. The first side plate 112 is provided on the top plate 111, and the movable contact arm 12 is fixed with the first side plate 112. In the case where the rotating bracket 11 includes a single side plate, the rotation shaft 6 may be one, and the rotation shaft 6 passes through the first side plate 112 and the mount 5. The first side plate 112 is provided with a movable hole 114, and the driving shaft 41 is disposed in the movable hole 114.

Structural designs according to embodiments of the present disclosure may be applied to various contactors to at least partially solve the above-described problems. It should be understood that structural designs according to embodiments of the present disclosure may also be applied to other electrical components, as well, embodiments of the present disclosure are not limited in this regard.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (9)

1. A contactor (100), characterized in that the contactor (100) comprises:

the fixed contact (2) is connected with the first wiring piece (101);

The movable contact assembly (1) can be switched between a closing position and a separating position, the movable contact assembly (1) comprises a rotary bracket (11) and a movable contact arm (12) connected with the rotary bracket (11), and the movable contact arm (12) is matched with the fixed contact (2);

A conductive member (3), one end of the conductive member (3) is connected with the end part of the movable contact arm (12) facing away from the fixed contact (2), the other end of the conductive member (3) is connected to a second wiring member (102), the conductive member (3) can deform in the process of switching the movable contact assembly (1) between the closing position and the opening position, and

The driving assembly (4) comprises a driving shaft (41) matched with the rotating support (11), the driving assembly (4) can move linearly, and the driving shaft (41) drives the rotating support (11) to rotate so that the moving contact assembly (1) can be switched between a switching-on position and a switching-off position.

2. The contactor (100) according to claim 1, wherein the rotating support (11) is provided with a movable hole (114), the driving shaft (41) is located in the movable hole (114), and the size of the movable hole (114) is larger than the size of the driving shaft (41), wherein the driving shaft (41) can move in the movable hole (114) and drive the rotating support (11) to rotate under the condition that the driving assembly (4) moves linearly.

3. The contactor (100) according to claim 2, wherein the contactor (100) further comprises a mounting (5), the swivel bracket (11) being rotatably connected to the mounting (5).

4. A contactor (100) according to claim 3, characterized in that the contactor (100) further comprises a rotation shaft (6), the rotation shaft (6) passing through the rotation bracket (11) and the mounting seat (5) to enable the rotation bracket (11) to rotate relative to the mounting seat (5), and the rotation shaft (6) is provided on an end of the rotation bracket (11) adjacent to the conductive member (3).

5. The contactor (100) according to claim 4, characterized in that the end of the moving contact arm (12) facing away from the conductive element (3) and the drive shaft (41) are located on the same side of the rotation axis (6), and the end of the moving contact arm (12) facing away from the conductive element (3) is further away from the rotation axis (6) than the drive shaft (41).

6. The contactor (100) according to claim 4, wherein the moving contact arm (12) is fixedly connected with the rotating bracket (11) by a limiting shaft (7) so that the moving contact arm (12) can rotate following the rotating bracket (11).

7. The contactor (100) according to claim 4, wherein the rotating bracket (11) comprises a top plate (111) and a first side plate (112) and a second side plate (113) provided on the top plate (111), the first side plate (112) is provided opposite to the second side plate (113), and the movable contact arm (12) is located between the first side plate (112) and the second side plate (113).

8. The contactor (100) according to claim 7, wherein the rotation shafts (6) are arranged in pairs, one rotation shaft (6) of a pair of rotation shafts (6) passing through the first side plate (112) and the mounting seat (5), the other rotation shaft (6) of a pair of rotation shafts (6) passing through the second side plate (113) and the mounting seat (5).

9. The contactor (100) according to claim 7, wherein the movable holes (114) are provided on the first side plate (112) and the second side plate (113), respectively, one end of the driving shaft (41) is provided in the movable hole (114) of the first side plate (112), and the other end of the driving shaft (41) is provided in the movable hole (114) of the second side plate (113).