Moving contact assembly and circuit breaker

Abstract

The utility model discloses a moving contact assembly and a circuit breaker, and relates to the technical field of moving contacts, the moving contact assembly can be connected with a wire, the moving contact assembly comprises a support member and a contact, and the support member is provided with a mounting groove; the contact part is mounted in the mounting groove; and a barrier strip is arranged at the notch of the mounting groove and can prevent the contact from being separated from the mounting groove. According to the moving contact assembly and the circuit breaker provided by the invention, the connection mode of the moving contact can be simplified, and the connection reliability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of movable contacts, and in particular to a movable contact assembly and a circuit breaker. Background Art

[0002] The moving contact is one of the important components of the circuit breaker. It is usually connected to the contact bracket inside the circuit breaker. The moving contact can contact or separate with the static contact inside the circuit breaker as the contact bracket moves, thereby realizing the conduction or disconnection of the circuit breaker.

[0003] In the prior art, bonding or welding is used to connect the moving contact and the contact bracket, but when bonding is used, the amount and temperature of the adhesive need to be controlled, which makes the operation more complicated and difficult to control.

[0004] When welding is used for connection, fluctuations in welding current will affect the temperature of the contact bracket, which may easily cause deformation of the contact bracket or unreliable connection. It also has the disadvantages of being complex to operate and difficult to control.

[0005] Therefore, there is an urgent need to provide a moving contact assembly to solve the problems of the prior art. Utility Model Content

[0006] The purpose of the present application is to provide a moving contact assembly, which can simplify the connection method of the moving contact and improve the connection reliability.

[0007] In a first aspect, an embodiment of the present application provides a moving contact assembly capable of connecting a wire, the moving contact assembly comprising a support member and a contact, the support member being provided with a mounting groove. The contact portion is mounted in the mounting groove. A blocking bar is provided at the notch of the mounting groove, and the blocking bar can prevent the contact from being separated from the mounting groove.

[0008] Based on the above-mentioned embodiments of the present application, the contact is installed in the installation groove of the support member, and the installation groove can play a role in positioning and limiting the contact. On the one hand, it is convenient for the contact to be accurately assembled on the support member to prevent assembly errors. On the other hand, the contact in the installation groove can improve the installation stability and avoid shaking after the contact is assembled to the support member. In addition, the setting of the blocking bar can block the notch of the installation groove, which can effectively prevent the contact from detaching from the installation groove from the notch of the installation groove, further improving the assembly stability between the contact and the support member.

[0009] In an optional embodiment, a avoidance groove is provided on the support member, the avoidance groove is connected to the mounting groove, and the avoidance groove can avoid the contact.

[0010] Based on the above embodiments of the present application, the avoidance groove is used to avoid the blocking bar set at the installation groove, and the contact can be avoided when the contact and the support are assembled, so that the contact enters the installation groove from the interconnected avoidance grooves. This setting form has the characteristics of simple structure and convenient assembly.

[0011] In an optional embodiment, the blocking bar is arranged on one side of the avoidance groove, the contact can pass through the avoidance groove and enter the installation groove, and the blocking bar can prevent the contact from escaping from the avoidance groove.

[0012] Based on the above-mentioned embodiments of the present application, the baffle is arranged on one side of the avoidance groove, that is, the baffle is located at the opening of the installation groove opposite to the avoidance groove. Such an arrangement enables the baffle to simultaneously block the contact from detaching from the installation groove and from the avoidance groove after the contact is installed in the installation groove, thereby preventing the contact from being installed in the installation groove and then detaching from the avoidance groove, thereby improving the assembly stability.

[0013] In an optional embodiment, the contact includes a mounting section and an electric contact portion, the mounting section is mounted in the mounting slot, the electric contact portion extends out of the mounting slot, and the blocking bar can abut against the mounting section.

[0014] Based on the above-mentioned embodiments of the present application, the mounting section on the contact is used to connect with the connecting section of the support member, and the contact portion of the contact is used for contact and conduction. The mounting section of the contact is installed in the mounting groove and the contact portion is extended out of the mounting groove, which can simultaneously meet the stable assembly and conductive functions of the contact and has high practicality.

[0015] In an optional embodiment, a first connecting portion is provided on the contact, and a second connecting portion is provided in the mounting groove. The first connecting portion and the second connecting portion can be directly or indirectly connected to fix the contact to the support member.

[0016] Based on the above-mentioned embodiments of the present application, the setting of the first connecting part and the second connecting part and the mutual cooperation between the two can fix the contact to the support member, effectively improve the assembly stability between the contact and the support member, reduce the assembly error between the contact and the support member, and further improve the assembly efficiency.

[0017] In an optional embodiment, the first connecting portion is a first fixing hole arranged on the mounting section, the second connecting portion is a second fixing hole arranged in the mounting groove, the mounting section is installed to the mounting groove, the first fixing hole is connected to the second fixing hole, fasteners are passed through the first fixing hole and the second fixing hole, and the contact is fixedly connected to the support member through the fasteners.

[0018] Based on the above-mentioned embodiments of the present application, the setting of the first fixing hole and the second fixing hole satisfies the form of indirect connection between the contact and the support member. By setting fasteners in the first fixing hole and the second fixing hole, the contact can be fixed to the mounting groove through the fasteners. This setting form is beneficial to improving the connection stability.

[0019] In an optional embodiment, the first connecting portion is a clamping boss disposed on the mounting section, and the second connecting portion is a clamping groove disposed in the mounting groove, and the clamping boss is clamped with the clamping groove to fix the contact.

[0020] Based on the above-mentioned embodiments of the present application, the first connecting portion and the second connecting portion are arranged in a snap-fit ​​connection form, which has a simple structure and connection form, can simplify the connection operation between the contact and the support member, and is conducive to improving assembly efficiency.

[0021] In an optional embodiment, the mounting section is configured as a wedge-shaped structure, the shape of the mounting groove is adapted to the mounting section, and the mounting section can be limited in the mounting groove by the wedge-shaped feature.

[0022] Based on the above-mentioned embodiments of the present application, by setting the mounting section as a wedge-shaped structure and the mounting groove as a wedge-shaped mounting groove, after the mounting section is installed into the mounting groove, the mounting section can be restricted in the mounting groove by utilizing the wedge-shaped cooperation, which can further improve the installation stability of the contact.

[0023] In an optional embodiment, a wiring portion is provided on the contact, and the wire is connected to the wiring portion.

[0024] Based on the above-mentioned embodiments of the present application, the setting of the wiring part facilitates the electrical connection of the wire to the contact, simplifies the electrical connection operation between the wire and the contact, and the setting position of the wiring part is fixed, which can play a role in fixing the connection position of the wire and facilitates production and manufacturing.

[0025] In a second aspect, an embodiment of the present application further provides a circuit breaker, comprising a housing and the above-mentioned moving contact assembly, wherein the moving contact assembly is installed in the housing.

[0026] Based on the above-mentioned embodiments of the present application, the connection stability between the contact and the support member in the moving contact assembly is improved, so that the moving contact assembly can move accurately to realize the on and off of the circuit breaker, effectively improving the reliability of the on and off of the circuit breaker control circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of the moving contact assembly provided in an embodiment of the present application.

[0029] Figure 2 An exploded view of the moving contact assembly provided in an embodiment of the present application.

[0030] Figure 3 A schematic diagram of the structure of the support member provided in an embodiment of the present application.

[0031] Figure 4 An exploded view of a support member and a contact provided in an embodiment of the present application being connected by rivets.

[0032] Figure 5 A schematic diagram of another form of structure of connection between a support member and a contact provided in an embodiment of the present application.

[0033] Figure 6 A schematic diagram of another structural form of connection between the contact and the support member provided in an embodiment of the present application.

[0034] Figure 7 This is one of the views of the moving contact assembly provided in an embodiment of the present application.

[0035] Figure 8 Provided in the embodiments of this application Figure 7 Cross-sectional view at point A.

[0036] Fig. 9 Schematic diagram of the structure of direct cooperation between the wiring portion on the contact and the blocking bar provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100-moving contact assembly; 200-conducting wire; 1-support member; 11-mounting groove; 111-first groove wall; 112-second groove wall; 113-second connecting portion; 12-blocking bar; 13-connecting section; 131-end face; 14-driven portion; 15-avoidance groove; 2-contact; 21-mounting section; 211-first connecting portion; 22-electric contact portion; 23-wiring portion; 3-fastener. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] At present, in most small circuit breakers, the moving contact is installed on the contact support, which is usually made of thermoplastic material. There are mainly direct bonding and resistance welding methods for connecting the moving contact and the contact support, but both methods have the problem of inconvenient assembly operation.

[0045] For example, when direct bonding is used, the curing time of the bonding agent is long, the work efficiency is low, and it is not suitable for mass production. In addition, the amount of bonding agent used is difficult to control, which may cause loose bonding or excessive use, affecting the use of the moving contact assembly. When resistance welding is used, the welding temperature is difficult to control. Whether the temperature is too high or too low, it will affect the connection stability between the contact and the contact support.

[0046] Based on this, the embodiments of the present application provide a moving contact assembly and a circuit breaker, which can simplify the connection method of the moving contact and improve the connection reliability.

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0048] Please refer to Figure 1 and Figure 2 The present embodiment provides a moving contact assembly 100, which can connect a wire 200. The moving contact assembly 100 includes a support member 1 and a contact 2. The support member 1 is provided with a mounting groove 11. The contact 2 is partially mounted in the mounting groove 11. A stop bar 12 is provided at the notch of the mounting groove 11, and the stop bar 12 can prevent the contact 2 from being separated from the mounting groove 11.

[0049] The moving contact assembly 100 can be used to connect the wire 200. The contact 2 in the moving contact assembly 100 can transmit the current transmitted by the wire 200 to the circuit through contact conduction. The contact 2 in the moving contact assembly 100 is installed on the support member 1. The support member 1 moves after being subjected to force, which can drive the contact 2 to move at the same time.

[0050] Based on the above-mentioned embodiment of the present application, the contact 2 is installed in the installation groove 11 of the support member 1, and the installation groove 11 can play a role in positioning and limiting the contact 2. On the one hand, it is convenient for the contact 2 to be accurately assembled on the support member 1 to prevent assembly errors. On the other hand, the contact 2 in the installation groove 11 can improve the installation stability and avoid shaking after the contact 2 is assembled to the support member 1. In addition, the setting of the blocking bar 12 can block the notch of the installation groove 11, which can effectively prevent the contact 2 from escaping from the notch of the installation groove 11, and further improve the assembly stability between the contact 2 and the support member 1.

[0051] Reference Figure 2 The support member 1 has a connecting section 13 and a driven portion 14, which are located at opposite ends of the support member 1. The contact 2 is fixedly mounted on the connecting section 13, and the driven portion 14 is used to connect with the driving device so as to be driven by force to move the contact 2. Specifically, the mounting groove 11 is provided on the connecting section 13, and the blocking bar 12 is also provided on the connecting section 13 and located at the notch of the mounting groove 11.

[0052] Reference Figure 2 The blocking bar 12 provided at the notch of the mounting groove 11 is used to block the contact 2 and prevent the contact 2 from being separated from the mounting groove 11 at the notch of the mounting groove 11. Specifically, the height of the first groove wall 111 of the mounting groove 11 is higher than that of the second groove wall 112, and the blocking bar 12 extends from the side of the first groove wall 111 to the top of the second groove wall 112, spanning the notch of the mounting groove 11. After the contact 2 is installed in the mounting groove 11, the side of the contact 2 facing the blocking bar 12 can directly abut against the blocking bar 12, or when the contact 2 is loose, the blocking bar 12 can prevent the contact 2 from being separated from the mounting groove 11.

[0053] In an optional embodiment, two or more baffles 12 may be provided, and the two baffles 12 are spaced apart at the notch of the mounting groove 11. The two baffles 12 may cooperate with each other to block the contact 2, further improving the assembly stability between the contact 2 and the support member 1.

[0054] In addition, the blocking bar 12 can also be set in the form of a baffle. No matter it is set as the blocking bar 12 or the baffle, it can play a role in preventing the contact 2 from being separated from the notch of the installation groove 11. Of course, the shape of the blocking bar 12 can be set in different styles. For example, the blocking bar 12 can be set in the form of a cuboid or a cylinder.

[0055] Reference Figure 2 and Figure 3 In some embodiments, a avoidance groove 15 is provided on the support member 1 , and the avoidance groove 15 is connected to the mounting groove 11 , and the avoidance groove 15 can avoid the contact 2 .

[0056] Based on the above-mentioned embodiment of the present application, the avoidance groove 15 is used to avoid the blocking bar 12 arranged at the mouth of the installation groove 11. When the contact 2 is assembled with the support member 1, the contact 2 can be avoided so that the contact 2 enters the installation groove 11 from the interconnected avoidance grooves 15. This arrangement has the characteristics of simple structure and convenient assembly.

[0057] Reference Figure 3 , wherein the avoidance groove 15 is arranged on the connecting section 13 of the support member 1, the avoidance groove 15 is arranged on the side of the connecting section 13 away from the installation groove 11, and the opening direction of the avoidance groove 15 is opposite to the opening direction of the installation groove 11. At the same time, the avoidance groove 15 is also arranged on the end surface 131 of the connecting section 13 of the support member 1 away from the driven portion 14, so that the avoidance groove 15 is directly connected from the bottom of the installation groove 11 to the side of the installation groove 11, and the contact 2 can enter the installation groove 11 from the bottom of the installation groove 11 through the avoidance groove 15, which is convenient for assembly and can cooperate with the blocking bar 12 to limit the contact 2.

[0058] Reference Figure 2 and Figure 3 In some embodiments, the blocking bar 12 is disposed on one side of the avoidance groove 15 , and the contact 2 can pass through the avoidance groove 15 and enter the mounting groove 11 , and the blocking bar 12 can prevent the contact 2 from escaping from the avoidance groove 15 .

[0059] Based on the above-mentioned embodiments of the present application, the blocking bar 12 is arranged on one side of the avoidance groove 15, that is, the blocking bar 12 is located at a position opposite to the avoidance groove 15 at the opening of the mounting groove 11. Such an arrangement allows the blocking bar 12 to simultaneously block the contact 2 from detaching from the mounting groove 11 and from the avoidance groove 15 after the contact 2 is installed in the mounting groove 11, thereby preventing the contact 2 from detaching from the avoidance groove 15 after being installed in the mounting groove 11, thereby improving the assembly stability.

[0060] Specifically, refer to Figure 3 The avoidance groove 15 extends from the side of the connecting section 13 away from the mounting groove 11 to the end surface 131 of the connecting section 13. The blocking bar 12 is arranged at a position where the notch of the mounting groove 11 is close to the end surface 131 of the connecting section 13. At this time, the blocking bar 12 is just opposite to the part of the avoidance groove 15 arranged on the end surface 131 of the connecting section 13. After the contact 2 enters the mounting groove 11 from the avoidance groove 15, it is blocked by the blocking bar 12, and the contact 2 cannot be separated from the opening of the mounting groove 11 and the opening of the part of the avoidance groove 15 located on the end surface 131 of the connecting section 13, which further improves the assembly stability of the contact 2 and the support member 1.

[0061] Reference Figure 1 and Figure 2 In some embodiments, the contact 2 includes a mounting section 21 and a contact portion 22 . The mounting section 21 is mounted in the mounting slot 11 . The contact portion 22 extends out of the mounting slot 11 . The blocking bar 12 can abut against the mounting section 21 .

[0062] Based on the above-mentioned embodiments of the present application, the mounting section 21 on the contact 2 is used to connect with the connecting section 13 of the support member 1, and the contact part 22 of the contact 2 is used for contact conduction. The mounting section 21 of the contact 2 is installed in the mounting groove 11 and the contact part 22 is extended out of the mounting groove 11, which can simultaneously meet the stable assembly and conductive functions of the contact 2, and has high practicality.

[0063] Specifically, refer to Figure 3 The mounting section 21 and the electric contact part 22 of the contact 2 are located at opposite ends of the contact 2. When the contact 2 is assembled to the support 1, the mounting section 21 extends from the avoidance groove 15 into the mounting groove 11 and is fixedly installed in the mounting groove 11. At this time, the electric contact part 22 extends from the partial avoidance groove 15 located on the connecting section 13 of the support 1. In this way, a complete moving contact assembly 100 can be formed to realize the contact and conductive function of the moving contact assembly 100.

[0064] Reference Figure 2 and Figure 4 In some embodiments, a first connection portion 211 is provided on the contact 2, and a second connection portion 113 is provided in the mounting groove 11. The first connection portion 211 and the second connection portion 113 can be directly or indirectly connected to fix the contact 2 to the support member 1.

[0065] Based on the above-mentioned embodiments of the present application, the setting of the first connecting portion 211 and the second connecting portion 113 and the cooperation therebetween can fix the contact 2 to the support member 1, effectively improve the assembly stability between the contact 2 and the support member 1, reduce the assembly error between the contact 2 and the support member 1, and further improve the assembly efficiency.

[0066] The first connection portion 211 and the second connection portion 113 can be directly connected, such as by clamping or bonding. The direct connection is simple to operate, which is conducive to improving assembly convenience and assembly efficiency of the contact 2 and the support member 1. Of course, the first connection portion 211 and the second connection portion 113 can also be indirectly connected, such as by bolt connection. Bolt connection has higher stability, and the risk of the contact 2 detaching from the support member 1 is lower, which is conducive to improving assembly stability.

[0067] Reference Figure 4In some embodiments, the first connection portion 211 is a first fixing hole arranged on the mounting section 21, the second connection portion 113 is a second fixing hole arranged in the mounting groove 11, the mounting section 21 is installed to the mounting groove 11, the first fixing hole is connected to the second fixing hole, the first fixing hole and the second fixing hole are penetrated by a fastener 3, and the contact 2 is fixedly connected to the support member 1 through the fastener 3.

[0068] Based on the above-mentioned embodiments of the present application, the setting of the first fixing hole and the second fixing hole satisfies the form of indirect connection between the contact 2 and the support member 1. By setting the fastener 3 in the first fixing hole and the second fixing hole, the contact 2 can be fixed to the mounting groove 11 through the fastener 3. This setting form is beneficial to improving the connection stability.

[0069] In the embodiments of this application, refer to Figure 4 The fastener 3 is configured as a rivet. After the contact 2 is installed in the installation slot 11, the first fixing hole and the second fixing hole are connected, and the rivet is inserted into the first fixing hole and the second fixing hole at the same time to realize the riveting of the contact 2 and the support member 1. The riveting setting form has a strong fastening effect, high stability, and is not easy to loosen, which can effectively improve the reliability of assembly.

[0070] In another embodiment, the fastener 3 can also be set as a bolt. Similar to the rivet, after the contact 2 is installed in the installation groove 11, the first fixing hole and the second fixing hole are connected, and the bolt is inserted into the first fixing hole and the second fixing hole. The bolt is fastened with the nut to fix the contact 2 in the installation groove 11, which has a technical effect similar to the rivet connection and will not be repeated here.

[0071] In addition, the second connection portion 113 can be configured as a threaded hole in which a threaded bolt passes through the first fixing hole and is directly threadedly connected to the threaded hole on the mounting groove 11 , which can also achieve the above-mentioned technical effect.

[0072] Reference Figure 5 and Figure 6 In some embodiments, the first connection portion 211 is a snap-fitting boss disposed on the mounting section 21 , and the second connection portion 113 is a snap-fitting groove disposed in the mounting groove 11 , and the snap-fitting boss is snap-fitted with the snap-fitting groove to fix the contact 2 .

[0073] Based on the above-mentioned embodiments of the present application, the first connecting portion 211 and the second connecting portion 113 are arranged in a snap-fit ​​connection form, which has a simple structure and connection form, can simplify the connection operation between the contact 2 and the support member 1, and is conducive to improving assembly efficiency.

[0074] Specifically, refer to Figure 5 The first connecting portion 211 on the contact 2 mounting section 21 is configured as a clamping boss, referring to Figure 6The second connection portion 113 on the mounting groove 11 is configured as a snap-fit ​​groove. After the contact 2 is assembled into the mounting groove 11, the snap-fit ​​boss on the mounting section 21 can snap into the snap-fit ​​groove, thereby playing a fixing role. The snap-fit ​​boss can be provided on the side of the mounting section 21 that fits with the side wall of the mounting groove 11, and the snap-fit ​​groove is provided on the side wall of the mounting groove 11 at a position that fits with the mounting section 21. In this way, after the mounting section 21 is installed into the mounting groove 11, a stable snap-fit ​​can be achieved through the snap-fit ​​boss and the snap-fit ​​groove.

[0075] The clamping boss can be set as a prismatic protrusion or a hemispherical protrusion on the side wall of the mounting section 21, and correspondingly, the clamping groove can be set as a long groove or a hemispherical groove opened on the first groove wall 111 or the second groove wall 112. Both of the above two embodiments can realize the clamping connection between the mounting section 21 and the mounting groove 11. Of course, the shape of the clamping boss can also be set to other shapes, as long as the shape of the clamping groove and the clamping boss can achieve stable clamping.

[0076] In addition, the positions of the snap-in boss and the snap-in groove can also be interchanged, that is, a snap-in groove is set on the side wall of the mounting section 21 that is in contact with the mounting groove 11, and a snap-in boss is set on the first groove wall 111 or the second groove wall 112 of the mounting groove 11. Similar to the above-mentioned embodiment, the technical effects of the above-mentioned embodiment can also be achieved, which will not be repeated here.

[0077] Reference Figure 7 and Figure 8 In some embodiments, the mounting section 21 is configured as a wedge-shaped structure, the shape of the mounting groove 11 is adapted to the mounting section 21 , and the mounting section 21 can be limited in the mounting groove 11 by the wedge-shaped feature.

[0078] Based on the above-mentioned embodiments of the present application, by setting the mounting section 21 as a wedge-shaped structure and the mounting groove 11 as a wedge-shaped mounting groove 11, after the mounting section 21 is installed into the mounting groove 11, the mounting section 21 can be restricted in the mounting groove 11 by utilizing the wedge-shaped cooperation, which can further improve the installation stability of the contact 2.

[0079] Among them, refer to Figure 8The wedge-shaped structure of the mounting section 21 is as follows: the width of the mounting section 21 gradually decreases from the end of the mounting section 21 away from the electric shock portion 22 to the end of the mounting section 21 close to the electric shock portion 22. The wedge-shaped structure of the mounting groove 11 and the mounting section 21 is as follows: the width of the mounting groove 11 gradually decreases from the portion of the mounting groove 11 away from the end face 131 of the connecting section 13 to the portion of the mounting groove 11 connected to the avoidance groove 15. Such a setting form has the characteristics of convenient installation and high structural stability, so that after the mounting section 21 extends from the avoidance groove 15 and is installed in the mounting groove 11, the mounting section 21 cannot be separated from the connecting section 13 from the partial avoidance groove 15 opened on the end face 131 of the connecting section 13, and can cooperate with the first connecting portion 211 and the second connecting portion 113 to fix the installation of the contact 2, effectively improving the assembly reliability.

[0080] In another embodiment, the wedge-shaped structure of the mounting section 21 can be configured as follows: the width of the mounting section 21 gradually increases from the end of the mounting section 21 away from the electric shock portion 22 to the end of the mounting section 21 close to the electric shock portion 22. Correspondingly, the wedge-shaped structure of the mounting groove 11 and the mounting section 21 is as follows: the width of the mounting groove 11 gradually increases from the portion of the mounting groove 11 away from the end surface 131 of the connecting section 13 to the portion of the mounting groove 11 connected to the avoidance groove 15. The matching mode of this configuration is the same as that described above, and also has the above-mentioned technical effects, which will not be repeated here.

[0081] Reference Fig. 9 In some embodiments, a wiring portion 23 is provided on the contact 2 , and the wire 200 is connected to the wiring portion 23 .

[0082] Based on the above-mentioned embodiments of the present application, the setting of the wiring portion 23 facilitates the electrical connection of the wire 200 to the contact 2, simplifies the electrical connection operation between the wire 200 and the contact 2, and the setting position of the wiring portion 23 is fixed, which can play a role in fixing the connection position of the wire 200, and is convenient for production and manufacturing.

[0083] Specifically, refer to Fig. 9 The wiring portion 23 is a boss disposed on the mounting section 21 of the contact 2. The boss is located on the side of the mounting section 21 away from the bottom of the mounting groove 11. The arrangement of the boss is simple in structure and easy to manufacture. The top of the boss is convenient for welding the wire 200, making the electrical connection operation more convenient. In addition, the wiring portion 23 is arranged as a boss, and the side wall of the boss can abut against the blocking bar 12, so that the blocking bar 12 can limit the position of the contact 2 relative to the mounting groove 11 by blocking the wiring portion 23, further improving the assembly reliability.

[0084] Reference Figures 1 to 9 The embodiment of the present application further provides a circuit breaker, which is not shown in the figure, and includes a housing and the above-mentioned moving contact assembly 100, and the moving contact assembly 100 is installed in the housing.

[0085] Based on the above-mentioned embodiments of the present application, the connection stability between the contact 2 and the support member 1 in the moving contact assembly 100 is improved, so that the moving contact assembly 100 can move accurately to realize the on and off of the circuit breaker, effectively improving the reliability of the on and off of the circuit breaker control circuit.

[0086] Specifically, the moving contact assembly 100 is arranged in the housing of the circuit breaker, and a static contact assembly corresponding to the moving contact assembly 100 is also arranged in the housing. The moving contact assembly 100 contacts the static contact assembly to realize the conduction of the circuit breaker, and the moving contact assembly 100 separates from the static contact assembly to disconnect the circuit breaker. In the process of the moving contact assembly 100 contacting and separating with the static contact assembly, the contact 2 in the moving contact assembly 100 moves under the drive of the support 1, and the above-mentioned fixed connection method is adopted between the contact 2 and the support 1, which can ensure that the contact 2 always follows the support 1 to move accurately, thereby ensuring that the moving contact assembly 100 and the static contact assembly can be contacted or separated in time.

[0087] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A moving contact assembly, characterized in that: Capable of connecting wires, the moving contact assembly comprises: A support member provided with a mounting groove; A contact, partially mounted in the mounting groove; A blocking bar is arranged at the notch of the mounting slot, and the blocking bar can prevent the contact from being separated from the mounting slot.

2. The moving contact assembly according to claim 1, characterized in that: The support member is provided with an avoidance groove, the avoidance groove is communicated with the mounting groove, and the avoidance groove can avoid the contact.

3. The moving contact assembly according to claim 2, characterized in that: The blocking bar is arranged on one side of the avoidance groove, the contact can pass through the avoidance groove and enter the installation groove, and the blocking bar can prevent the contact from escaping from the avoidance groove.

4. The moving contact assembly according to claim 1, characterized in that: The contact comprises a mounting section and an electric contact portion, the mounting section is mounted in the mounting slot, the electric contact portion extends out of the mounting slot, and the blocking bar can abut against the mounting section.

5. The moving contact assembly according to claim 4, characterized in that: The contact is provided with a first connection portion, and the mounting groove is provided with a second connection portion. The first connection portion and the second connection portion can be directly or indirectly connected to fix the contact to the support member.

6. The moving contact assembly according to claim 5, characterized in that: The first connecting portion is a first fixing hole arranged on the mounting section, the second connecting portion is a second fixing hole arranged in the mounting groove, the mounting section is installed to the mounting groove, the first fixing hole is communicated with the second fixing hole, fasteners are passed through the first fixing hole and the second fixing hole, and the contact is fixedly connected to the support member through the fasteners.

7. The moving contact assembly according to claim 5, characterized in that: The first connection portion is a clamping boss disposed on the mounting section, and the second connection portion is a clamping groove disposed in the mounting groove. The clamping boss is clamped with the clamping groove to fix the contact.

8. The moving contact assembly according to claim 4, characterized in that: The mounting section is configured as a wedge-shaped structure, the shape of the mounting groove is adapted to the mounting section, and the mounting section can be limited in the mounting groove by the wedge-shaped feature.

9. The moving contact assembly according to claim 1, characterized in that: The contact is provided with a wiring portion, and the wire is connected to the wiring portion.

10. A circuit breaker, characterized in that: It comprises a housing and a moving contact assembly as claimed in any one of claims 1 to 9, wherein the moving contact assembly is installed in the housing.

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