Contactor

Abstract

The embodiment of the utility model provides a contactor. The contactor comprises a static contact which is connected with a first wiring piece; the moving contact assembly can be switched between a switching-on position and a switching-off position, the moving contact assembly comprises a rotating support and a moving contact arm connected with the rotating support, and the moving contact arm is matched with the static contact; one end of the conductive piece is connected with the end part, deviating from the static contact, of the moving contact arm, the other end of the conductive piece is connected to a second wiring piece, and the conductive piece can deform in the process of switching the moving contact assembly between the switching-on position and the switching-off position; and the driving assembly comprises a driving shaft matched with the rotating support, and the driving assembly can move linearly and drives the rotating support to rotate through the driving shaft, so that the moving contact assembly is switched between a switching-on position and a switching-off position.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more particularly, to a contactor. Background Art

[0002] Conventional contactors usually adopt a double-breakpoint structure, and realize the closing and opening functions through the closing and disconnection of paired moving contact assemblies and paired static contact assemblies. The contact resistance of the contactor with a double-breakpoint structure is large, while a single-breakpoint contactor can solve this problem.

[0003] However, the moving contact arm in the single-break contactor rotates directly under the drive of the driving assembly. Since the moving contact arm has low mechanical properties and is easy to wear, the stability of the conventional single-break contactor is poor. Utility Model Content

[0004] An object of the present disclosure is to provide a contactor to at least partially solve the above problems.

[0005] In a first aspect of the present disclosure, a contactor is provided, comprising: a stationary contact connected to a first wiring member; a moving contact assembly capable of switching between a closing position and an opening position, the moving contact assembly comprising a rotating bracket and a moving contact arm connected to the rotating bracket, and the moving contact arm cooperates with the stationary contact; a conductive member, one end of which is connected to an end of the moving contact arm facing away from the stationary contact, and the other end of the conductive member is connected to a second wiring member, and the conductive member can be deformed during the switching of the moving contact assembly between the closing position and the opening position; and a driving assembly comprising a driving shaft cooperating with the rotating bracket, the driving assembly capable of linear motion, and driving the rotating bracket to rotate via the driving shaft, so that the moving contact assembly can switch between the closing position and the opening position.

[0006] According to an embodiment of the present disclosure, the static contact is connected to the first wiring member, the moving contact arm cooperates with the static contact, one end of the conductive member is connected to the moving contact arm, the other end of the conductive member is connected to the second wiring member, and the conductive member can be deformed. Therefore, the contactor according to the present disclosure can replace one of the double breakpoints with the conductive member, which is beneficial to reduce the contact resistance and improve the performance of the contactor; at the same time, due to the reduction of contacts, the production cost can also be reduced. On the other hand, the driving shaft of the driving assembly first drives the rotating bracket to rotate, and then the moving contact arm follows the rotating bracket to rotate. Therefore, compared with the driving assembly directly driving the moving contact arm, the stability of the contactor according to the embodiment of the present disclosure is improved.

[0007] In some embodiments, a movable hole is provided on the rotating bracket, the driving shaft is located in the movable hole, and the size of the movable hole is larger than the size of the driving shaft, wherein when the driving assembly moves linearly, the driving shaft can move in the movable hole and drive the rotating bracket to rotate.

[0008] In some embodiments, the contactor further includes a mounting seat, and the rotating bracket is rotatably connected to the mounting seat.

[0009] In some embodiments, the contactor further includes a rotating shaft, the rotating shaft passing through the rotating bracket and the mounting seat so that the rotating bracket can rotate relative to the mounting seat, and the rotating shaft is disposed on one end of the rotating bracket adjacent to the conductive member.

[0010] In some embodiments, the end of the moving contact arm facing away from the conductive member and the drive shaft are located on the same side of the rotating shaft, and the end of the moving contact arm facing away from the conductive member is farther away from the rotating shaft than the drive shaft.

[0011] In some embodiments, the moving contact arm is fixedly connected to the rotating bracket via a limiting shaft, so that the moving contact arm can rotate along with the rotating bracket.

[0012] In some embodiments, the rotating bracket includes a top plate and a first side plate and a second side plate disposed on the top plate, the first side plate and the second side plate are disposed opposite to each other, and the moving contact arm is located between the first side plate and the second side plate.

[0013] In some embodiments, the rotation shafts are arranged in pairs, one of the rotation shafts in the pair passes through the first side plate and the mounting seat, and the other rotation shaft in the pair passes through the second side plate and the mounting seat.

[0014] In some embodiments, the movable holes are respectively provided on the first side plate and the second side plate, one end of the drive shaft is provided in the movable hole of the first side plate, and the other end of the drive shaft is provided in the movable hole of the second side plate.

[0015] It should be understood that the content described in this section is not intended to limit the key features or important 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 easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0017] Figure 1 shows a cross-sectional view of a contactor according to some embodiments of the present disclosure;

[0018] Figure 2 A schematic structural diagram of a second wiring member, a conductive member, and a moving contact assembly according to some embodiments of the present disclosure is shown;

[0019] Figure 3 Shows Figure 1 The schematic diagram of the structure of the contactor is shown, in which the base is not shown.

[0020] Description of reference numerals:

[0021] 100 is a contactor, 101 is a first connecting piece, and 102 is a second connecting piece;

[0022] 1 is a moving contact assembly, 11 is a rotating 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 moving contact arm;

[0023] 2 is a static contact; 3 is a conductive part;

[0024] 4 is a driving assembly, 41 is a driving shaft;

[0025] 5 is a mounting seat; 6 is a rotating shaft; 7 is a limiting shaft; and 8 is a base. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0028] As described above, conventional contactors usually adopt a double-breakpoint structure, and realize the closing and opening functions by closing and disconnecting a pair of moving contact assemblies and a pair of static contact assemblies. The contact resistance of the contactor with a double-breakpoint structure is relatively large, and a single-breakpoint contactor can solve this problem. However, the moving contact arm in the single-breakpoint contactor rotates directly under the drive of the driving assembly. Since the moving contact arm has low mechanical properties and is easy to wear, the stability of the conventional single-breakpoint contactor is poor. The embodiment of the present disclosure provides a contactor 100 to at least partially solve the above-mentioned problems. In the following, it will be combined with Figures 1 to 3 The principles of the present disclosure are described.

[0029] Figure 1 1 shows a cross-sectional view of a contactor 100 according to some embodiments of the present disclosure. Figure 1 As shown, the contactor 100 described herein generally comprises a first wiring member 101, a second wiring member 102, a moving contact assembly 1, a stationary contact 2, a conductive member 3, a drive assembly 4, a mounting seat 5 and a base 8. The base 8 serves as a mounting carrier, which is used to fix and mount the first wiring member 101, the second wiring member 102 and the mounting seat 5.

[0030] The first wiring member 101 and the second wiring member 102 are connected to the load and the power supply, respectively. In some embodiments, the first wiring member 101 can be connected to the load, and the second wiring member 102 can be connected to the power supply. In other embodiments, the first wiring member 101 can be connected to the power supply, and the second wiring member 102 can be connected to the load, which is not limited here.

[0031] Figure 2 FIG. 1 shows a schematic structural diagram of a second wiring member 102, a conductive member 3, and a moving contact assembly 1 according to some embodiments of the present disclosure. Figure 1 to Figure 2 As shown, in some embodiments, the static contact 2 is connected to the first wiring member 101. The moving contact assembly 1 cooperates with the static contact 2, and the moving contact assembly 1 can switch between the closing position and the opening position relative to the static 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 wiring member 102.

[0032] It should be noted that, since the moving contact assembly 1 needs to switch between the closing position and the opening position, the conductive member 3 can be deformed to prevent the conductive member 3 from interfering with the movement of the moving contact assembly 1, thereby ensuring smooth switching of the moving contact assembly 1.

[0033] The connection method of the conductive member 3 and the second wiring member 102 according to the embodiment of the present disclosure can be various types of connection methods currently known or available in the future, and the embodiment of the present disclosure is not limited to this. For example, in some embodiments, the conductive member 3 can be fastened to the second wiring member 102 by screws. In other embodiments, the conductive member 3 can be welded to the second wiring member 102, which is not limited here.

[0034] The conductive member 3 according to the embodiment of the present disclosure can be any type of conductive member 3 currently known or available in the future, as long as it has both conductive properties and deformable properties, and the embodiment of the present disclosure does not limit this. For example, in some embodiments, the conductive member 3 can be a soft copper wire.

[0035] Figure 3 Shows Figure 1 The schematic diagram of the structure of the contactor 100 is shown in FIG. 1 , wherein the base 8 is not shown. Figure 1 and Figure 3 As shown, the moving contact assembly 1 is rotatably connected to the mounting seat 5 so as to be switchable between a closing position and an opening position.

[0036] Continue reading Figures 1 to 3 In some embodiments, the moving contact assembly 1 may include a rotating bracket 11 and a moving contact arm 12. The rotating bracket 11 is rotatably connected to the mounting seat 5. The moving contact arm 12 is connected to the rotating bracket 11 so that the moving contact arm 12 can rotate with the rotating bracket 11. The moving contact arm 12 cooperates with the stationary contact 2. One end of the conductive member 3 is connected to the end of the moving contact arm 12 away from the stationary contact 2, and the other end of the conductive member 3 is connected to the second wiring member 102.

[0037] Since the stationary contact 2 is connected to the first wiring member 101, the moving contact arm 12 cooperates with the stationary contact 2. One end of the conductive member 3 is connected to the moving contact arm 12, and the other end of the conductive member 3 is connected to the second wiring member 102, and the conductive member 3 can be deformed. Therefore, the contactor 100 according to the present disclosure can replace one of the double breakpoints with the conductive member 3, which is conducive to reducing the contact resistance and improving the performance of the contactor 100; at the same time, due to the reduction of contact points, the production cost can also be reduced.

[0038] According to the embodiment of the present disclosure, the connection method between the movable contact arm 12 and the rotating bracket 11 can be various types of connection methods currently known or available in the future, and the embodiment of the present disclosure is not limited to this. Figures 1 to 3 In some embodiments, the movable contact arm 12 and the rotating bracket 11 can be fixedly connected by the limiting shaft 7, so that the movable contact arm 12 can rotate with the rotating bracket 11. In other embodiments, the movable contact arm 12 can be welded to the rotating bracket 11. In other embodiments, the movable contact arm 12 can be fastened to the rotating bracket 11 by screws, which is not limited here.

[0039] According to the embodiment of the present disclosure, the connection method between the conductive member 3 and the movable contact arm 12 can be various types of connection methods currently known or available in the future, and the embodiment of the present disclosure is not limited to this. For example, in some embodiments, the conductive member 3 can be fastened to the movable contact arm 12 by screws. In other embodiments, the conductive member 3 and the movable contact arm 12 are welded, which is not limited here.

[0040] Continue reading Figures 1 to 3 In some embodiments, the rotating shaft 6 may pass through the rotating bracket 11 and the mounting seat 5, so that the rotating bracket 11 can rotate relative to the mounting seat 5. The rotating shaft 6 may be disposed on one end of the rotating bracket 11 adjacent to the conductive member 3.

[0041] Continue reading Figure 1 and Figure 3 In some embodiments, the driving assembly 4 can cooperate with the moving contact assembly 1. The driving assembly 4 can move linearly to drive the moving contact assembly 1 to rotate. Obviously, during the rotation of the moving contact assembly 1, the moving contact assembly 1 can switch between the closing position and the opening position.

[0042] Continue reading Figure 1 and Figure 3 In some embodiments, the driving assembly 4 includes a driving shaft 41 that cooperates with the rotating bracket 11. The driving assembly 4 can move linearly and drive the rotating bracket 11 to rotate via the driving shaft 41, so that the moving contact assembly 1 switches between the closing position and the opening position.

[0043] With the above configuration, the driving shaft 41 first drives the rotating bracket 11 to rotate, and then the moving contact arm 12 rotates following the rotating bracket 11. The moving contact arm 12 is a conductive material, which has low mechanical properties and is easy to wear. However, the rotating bracket 11 is made of wear-resistant metal material with high mechanical properties. Compared with the driving component 4 directly driving the moving contact arm 12, the failure problem caused by wear and deformation of the moving contact arm 12 is avoided. Therefore, the stability of the contactor 100 according to the embodiment of the present disclosure is improved.

[0044] Continue reading Figures 1 to 3 In some embodiments, a movable hole 114 may be provided on the rotating bracket 11. The driving shaft 41 may be located in the movable hole 114. The size of the movable hole 114 needs to be larger than the size of the driving shaft 41. Thus, when the driving assembly 4 moves linearly up and down, the driving shaft 41 can move in the movable hole 114 to drive the rotating bracket 11 to rotate relative to the mounting seat 5.

[0045] According to the embodiment of the present disclosure, the active hole 114 can be a hole of various shapes, which is not limited in the embodiment of the present disclosure. For example, in some embodiments, the active hole 114 can be formed by extending along a straight line. In other embodiments, the active hole 114 can be an arc-shaped hole, which is not limited here.

[0046] Continue reading Figures 1 to 3 In some embodiments, the rotating shaft 6 is disposed on one end of the rotating bracket 11 adjacent to the conductive member 3, and the end of the movable contact arm 12 away from the conductive member 3 and the driving shaft 41 are located on the same side of the rotating shaft 6. Therefore, when the end of the movable contact arm 12 away from the conductive member 3 is farther away from the rotating shaft 6 than the driving shaft 41, if the driving shaft 41 moves the same distance, the end of the movable contact arm 12 away from the conductive member 3 rotates more within the same time due to the lever ratio, thereby increasing the contact opening speed and the contact opening distance.

[0047] In addition, due to the lever ratio, it is assumed that the contact fails if it is worn for 1 mm. Therefore, the contactor 100 according to the embodiment of the present disclosure can allow contact wear exceeding 1 mm, thereby improving contact overtravel and improving the performance and service life of the contactor 100.

[0048] Continue reading Figure 3 Specifically, the rotating 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 arranged on the top plate 111. The first side plate 112 and the second side plate 113 are arranged opposite to each other. The moving contact arm 12 is located between the first side plate 112 and the second side plate 113, and the moving contact arm 12 is fixed to the first side plate 112 and the second side plate 113 at the same time. As a result, the structural strength and stability of the rotating bracket 11 are improved.

[0049] Since the rotating bracket 11 includes a pair of side plates, in some embodiments, the rotating shaft 6 can be one, and the rotating shaft 6 passes through the first side plate 112, the mounting seat 5 and the second side plate 113 at the same time. Figure 3 In some embodiments, the rotating shafts 6 can be arranged in pairs, and correspondingly, the mounting seat 5 is a symmetrical structure. One of the rotating shafts 6 in the pair can pass through the first side plate 112 and the mounting seat 5, and the other rotating shaft 6 in the pair can pass through the second side plate 113 and the mounting seat 5. It can be seen that since the first side plate 112 and the second side plate 113 rotate relative to the mounting seat 5 at the same time, the rotation bracket 11 rotates more stably.

[0050] Since the rotating bracket 11 includes a pair of side plates, in some embodiments, the driving shaft 41 can be one. 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.

[0051] Of course, the rotating bracket 11 may also include a top plate 111 and a first side plate 112. The first side plate 112 is disposed on the top plate 111, and the moving contact arm 12 is fixed to the first side plate 112. In the case where the rotating bracket 11 includes a single side plate, the rotating shaft 6 may be one, and the rotating shaft 6 passes through the first side plate 112 and the mounting seat 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.

[0052] The structural design according to the embodiment of the present disclosure can be applied to various contactors to at least partially solve the above problems. It should be understood that the structural design according to the embodiment of the present disclosure can also be applied to other electrical components, and the embodiment of the present disclosure is not limited to this.

[0053] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A contactor (100), characterized in that: The contactor (100) comprises: A stationary contact (2) connected to the first connecting piece (101); A moving contact assembly (1) capable of switching between a closing position and an opening position, the moving contact assembly (1) comprising a rotating bracket (11) and a moving contact arm (12) connected to the rotating bracket (11), and the moving contact arm (12) cooperates with the stationary contact (2); a conductive member (3), one end of the conductive member (3) being connected to the end of the moving contact arm (12) facing away from the stationary contact (2), the other end of the conductive member (3) being connected to a second wiring member (102), and the conductive member (3) being capable of deforming during the process of the moving contact assembly (1) switching between the closing position and the opening position; and A drive assembly (4) comprises a drive shaft (41) cooperating with the rotating bracket (11); the drive assembly (4) is capable of linear motion and drives the rotating bracket (11) to rotate via the drive shaft (41), so that the moving contact assembly (1) switches between a closed position and an open position.

2. The contactor (100) according to claim 1, characterized in that: The rotating bracket (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 when the driving component (4) moves linearly, the driving shaft (41) can move in the movable hole (114) and drive the rotating bracket (11) to rotate.

3. The contactor (100) according to claim 2, characterized in that: The contactor (100) further comprises a mounting seat (5), and the rotating bracket (11) is rotatably connected to the mounting seat (5).

4. The contactor (100) according to claim 3, characterized in that: The contactor (100) further comprises a rotating shaft (6), wherein the rotating shaft (6) passes through the rotating bracket (11) and the mounting seat (5) so that the rotating bracket (11) can rotate relative to the mounting seat (5), and the rotating shaft (6) is arranged on one end of the rotating 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 member (3) and the drive shaft (41) are located on the same side of the rotating shaft (6), and the end of the moving contact arm (12) facing away from the conductive member (3) is farther away from the rotating shaft (6) than the drive shaft (41).

6. The contactor (100) according to claim 4, characterized in that: The movable contact arm (12) is fixedly connected to the rotating bracket (11) via a limiting shaft (7), so that the movable contact arm (12) can rotate along with the rotating bracket (11).

7. The contactor (100) according to claim 4, characterized in that: The rotating bracket (11) comprises a top plate (111) and a first side plate (112) and a second side plate (113) arranged on the top plate (111), the first side plate (112) and the second side plate (113) being arranged opposite to each other, and the moving 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, characterized in that: The rotating shafts (6) are arranged in pairs, one of the rotating shafts (6) in the pair passes through the first side plate (112) and the mounting seat (5), and the other of the rotating shafts (6) in the pair passes through the second side plate (113) and the mounting seat (5).

9. The contactor (100) according to claim 7, characterized in that: The movable hole (114) is respectively provided on the first side plate (112) and the second side plate (113); one end of the drive shaft (41) is provided in the movable hole (114) of the first side plate (112); and the other end of the drive shaft (41) is provided in the movable hole (114) of the second side plate (113).

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