Moving contact assembly and switch device

Abstract

The utility model provides a moving contact assembly and switch equipment, and relates to the technical field of low-voltage electric appliances. The moving contact assembly is applied to the switch equipment. The moving contact assembly comprises a moving contact body, a mounting rack and a line bank. The mounting rack is fixedly mounted on a shell of the switch equipment, and the moving contact body is movably connected with the mounting rack. The line bank is fixedly connected with the mounting rack, and the line bank and the mounting rack are matched to form a non-zero included angle. According to the moving contact assembly provided by the embodiment of the invention, the heat dissipation efficiency of the line bank can be improved, the temperature rise of the moving contact assembly in the use process is reduced, and the use performance of the switch equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of low-voltage electrical apparatus, and particularly relates to a moving contact assembly and a switching device. BACKGROUND

[0002] The switching device can switch the use state of the circuit. The switching device can be a circuit breaker, a contactor or other electrical switch. Taking the switching device as a circuit breaker for example, when a short circuit, overload or other fault state occurs in the circuit, the circuit breaker can be switched from a closed state to an open state, so that no current passes through the circuit, reducing the possibility of further expansion of the fault.

[0003] The circuit breaker generally includes a moving contact and a static contact. When the moving contact is separated from the static contact, the circuit breaker is in an open state. The moving contact, the terminal strip and other structures can cooperate to form a moving contact assembly. The moving contact can be connected to an external wire through the terminal strip.

[0004] Based on the structure of the existing moving contact assembly, during use of the circuit breaker, the temperature of the moving contact assembly is prone to rising, which affects the use performance of the circuit breaker. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a moving contact assembly and a switching device. According to the moving contact assembly provided in the examples of the present application, the heat dissipation efficiency of the terminal strip can be improved, the temperature rise generated during use of the moving contact assembly can be reduced, and the use performance of the switching device can be ensured.

[0006] In a first aspect, the present application provides a moving contact assembly applied to a switching device. The moving contact assembly includes a moving contact body, a mounting frame and a terminal strip. The mounting frame is fixedly installed on a housing of the switching device, and the moving contact body is movably connected to the mounting frame. The terminal strip is fixedly connected to the mounting frame, and the terminal strip and the mounting frame cooperate to form a non-zero included angle.

[0007] In the examples of the present application, the mounting frame is fixedly connected to the housing, and the moving contact assembly is movably connected to the mounting frame. Based on this, the moving contact assembly can be moved to a position in contact with the static contact of the switching device, and the switching device is in a closed state. The moving contact assembly can also be moved to a position separated from the static contact of the switching device, and the switching device is in an open state.

[0008] In the examples of the present application, by setting the terminal strip and the mounting frame to cooperate to form a non-zero included angle, during use of the switching device, part of the terminal strip is exposed to the outside of the housing. The area of the terminal strip through which the external air flows is large, so that the heat generated at the terminal strip exposed to the outside of the housing is easily taken away by the flowing external air. The heat dissipation efficiency of the terminal strip is improved, the temperature rise generated during use of the moving contact assembly is reduced, and the use performance of the switching device is ensured.

[0009] In addition, in the case that the switch device is a multi-phase switch device, since the busbars are arranged at an angle with the mounting frame, the distance between the busbars corresponding to different phases can be large, which is beneficial to improve the insulation performance between different phases of the switch device. In addition, the distance between the busbars corresponding to different phases is large, which is beneficial to the external air passing through between the busbars corresponding to different phases, and is beneficial to improve the heat dissipation efficiency at the busbars, reduce the temperature rise generated at the busbars, reduce the temperature rise generated by the movable contact assembly during use, and ensure the use performance of the switch device.

[0010] In some possible implementation manners, the busbar is substantially perpendicular to the mounting frame.

[0011] By arranging the busbar substantially perpendicular to the mounting frame, the heat generated at the busbar exposed to the outside of the shell can be easily taken away by the flowing external air, the heat dissipation efficiency at the busbar is improved, the temperature rise generated by the movable contact assembly during use is reduced, and the use performance of the switch device is ensured.

[0012] In some possible implementation manners, the side of the busbar facing the mounting frame is provided with a first mounting groove, and part of the mounting frame extends into the first mounting groove.

[0013] Since the first mounting groove is arranged on the busbar, and part of the mounting frame can extend into the first mounting groove, the connection between the mounting frame and the busbar can be realized through the cooperation of the first mounting groove and the mounting frame.

[0014] In some possible implementation manners, the side of the mounting frame facing the busbar is provided with a second mounting groove, and part of the busbar extends into the second mounting groove.

[0015] Since the second mounting groove is arranged on the mounting frame, and part of the busbar can extend into the second mounting groove, the connection between the mounting frame and the busbar can be realized through the cooperation of the second mounting groove and the busbar.

[0016] In some possible implementation manners, the movable contact assembly further comprises a first transition block, one side of the first transition block is connected with the first side of the busbar, the other side of the first transition block is connected with the mounting frame, and the cross-sectional area of the first transition block decreases in the direction away from the mounting frame.

[0017] In the example of the present application, by connecting the first transition block between the first side of the busbar and the mounting frame, the amplitude of the shaking of the busbar relative to the mounting frame can be reduced, and the use reliability of the movable contact assembly is ensured.

[0018] In addition, since the cross-sectional area of the first transition block decreases in the direction away from the mounting frame, the current reaching the busbar via the mounting frame can gradually change, so that the possibility of sudden change of the current flowing through the mounting frame to reach the busbar is low, which is beneficial to ensure the use performance of the movable contact assembly.

[0019] In some possible implementation manners, the movable contact assembly further includes a second transition block, one side of the second transition block is connected with the second side of the busbar, the second side is arranged adjacent to the first side, and the other side of the second transition block is connected with the mounting frame, and the cross-sectional area of the second transition block decreases in the direction away from the busbar.

[0020] In the examples of the present application, by connecting the second transition block between the second side of the busbar and the mounting frame, the amplitude of the shaking of the busbar relative to the mounting frame can be further reduced, and the use reliability of the movable contact assembly can be ensured.

[0021] In addition, since the cross-sectional area of the second transition block decreases in the direction away from the busbar, the current reaching the busbar via the mounting frame can gradually change, so that the possibility of sudden change of the current flowing through the mounting frame to reach the busbar is low, which is beneficial to ensure the use performance of the movable contact assembly.

[0022] In some possible implementation manners, the side of the mounting frame away from the busbar is provided with a wiring slot, the movable contact body includes a soft connection and a movable contact piece connected with each other, and the end of the soft connection away from the movable contact piece is fixedly connected to the slot wall of the wiring slot.

[0023] The wiring slot can provide a mounting space for the soft connection, and since the wiring slot is arranged on the mounting frame, the connection between the soft connection and the mounting frame can be facilitated by arranging the wiring slot.

[0024] The movable contact assembly includes the movable contact piece and the soft connection connected with each other, and the movable contact piece is connected with the mounting frame through the soft connection. Since the soft connection has good flexibility, the movable contact piece is easy to move relative to the mounting frame, so that the relative position of the movable contact assembly and the stationary contact is easy to change, and thus the switching of the use state of the switch device is facilitated.

[0025] In a second aspect, the present application provides a switch device, which includes a housing, a stationary contact, and the movable contact assembly disclosed in any of the possible implementation manners described above. The movable contact assembly includes a busbar, the stationary contact is fixedly installed on the housing, the movable contact assembly is movably installed on the housing, and part of the busbar is arranged outside the housing and connected with an external wire.

[0026] The switch device provided in the above second aspect and the possible designs of the above second aspect has the beneficial effects of the first aspect and the possible implementation manners of the first aspect, which will not be described herein again.

[0027] In some possible implementation manners, the part of the busbar arranged outside the housing is a wiring segment, the wiring segment is provided with a mounting hole, the movable contact assembly includes an abutting piece, part of the abutting piece is arranged in the mounting hole, and the abutting piece can abut to the outer wall of the housing in the case that the wiring segment shakes relative to the housing.

[0028] In the use of the circuit breaker, the wiring strip can be shaken relative to the shell. In the example of the present application, an abutting piece is arranged on the wiring segment, and in the case where the wiring strip is shaken relative to the shell, the abutting piece can abut to the shell. Since the abutting piece can abut to the shell, and the abutting piece is arranged on the wiring segment, the abutting between the abutting piece and the shell can limit the amplitude of the shaking of the wiring segment relative to the shell.

[0029] In some possible implementation manners, the shell is provided with a limiting hole, and part of the wiring strip is arranged to protrude outside the shell through the limiting hole. The switch device comprises a matching clamping protrusion and a clamping groove, at least part of the clamping protrusion can be clamped to the clamping groove, the clamping protrusion is arranged on the wiring strip, and the clamping groove is arranged on the hole wall of the limiting hole. Alternatively, the clamping protrusion is arranged on the hole wall of the limiting hole, and the clamping groove is arranged on the wiring strip.

[0030] On the basis that the wiring strip is fixedly installed on the wiring strip through the mounting bracket, by arranging the clamping protrusion and the clamping groove, and one of the clamping protrusion and the clamping groove is arranged on the wiring strip, and the other is arranged on the hole wall of the mounting hole, and the mounting hole is arranged on the shell, the mutual position of the wiring strip and the shell can be limited through the cooperation of the clamping protrusion and the clamping groove, and the amplitude of the shaking of the wiring strip relative to the shell is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A structural schematic diagram of a movable contact assembly is provided for the example of the present application.

[0032] Figure 2 A cooperation schematic diagram of a wiring strip and a mounting bracket is provided for the example of the present application.

[0033] Figure 3 A cooperation schematic diagram of a wiring strip and a mounting bracket is provided for the example of the present application.

[0034] Figure 4 A cooperation schematic diagram of a wiring strip and a mounting bracket is provided for the example of the present application.

[0035] Figure 5 A structural schematic diagram of a wiring strip is provided for the example of the present application.

[0036] Figure 6 A structural schematic diagram of another wiring strip is provided for the example of the present application.

[0037] Figure 7 A structural schematic diagram of a mounting bracket is provided for the example of the present application.

[0038] Explanation of reference signs:

[0039] 100, moving contact assembly; 110, terminal strip; 111, mounting hole; 112, first mounting groove; 113, first transition block; 120, mounting bracket; 121, terminal slot; 122, second mounting groove; 123, second transition block; 130, moving contact body; 131, flexible connection; 132, moving contact piece. DETAILED DESCRIPTION

[0040] For the purpose of making the examples of the present application, the technical solutions and advantages more clear, the technical solutions in the examples of the present application will be described clearly and completely below with the drawings in the examples of the present application. Obviously, the described examples are some examples of the present application, but not all the examples. Based on the examples in the present application, all the other examples obtained by the person of ordinary skill in the art without making creative labor, belong to the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terminology used in the specification of the present application is only for the purpose of describing the specific examples, and is not intended to limit the present application; the terms "comprise" and "have" and any variation thereof in the specification and claims of the present application and the drawings description, are intended to cover the non-exclusive inclusion.

[0042] Reference herein to "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of the present application. The appearance of the phrase "example" in various places in the specification does not necessarily all refer to the same example, nor is it necessarily mutually exclusive of other examples. It is explicitly and implicitly understood that the examples described herein can be combined.

[0043] The term "and / or" in the present application is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing, A and B existing, and B existing. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0044] The orientation words appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the moving contact assembly of the present application.

[0045] In addition, the terms "first", "second", and the like in the specification and claims of the present application or the above drawings are used to distinguish different objects, and are not used to describe a specific order, which can explicitly or implicitly include one or more of the features.

[0046] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).

[0047] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The switch device can switch the use state of the circuit. The switch device can be a circuit breaker, a contactor or other electrical switch. Taking the switch device as a circuit breaker, when the circuit appears short circuit, overload or other fault state, the circuit breaker can be switched from the closed state to the open state, so that there is no current in the circuit, reducing the possibility of further expansion of the fault in the circuit.

[0049] The circuit breaker generally includes a static contact and a moving contact. When the moving contact is separated from the static contact, the circuit breaker is in the open state. The moving contact and the terminal strip and other structures can cooperate to form a moving contact assembly. The moving contact can be connected to the external conductor through the terminal strip.

[0050] Based on the structure of the existing moving contact assembly, the terminal strip is installed on the shell through the mounting bracket, and the terminal strip is parallel to the mounting bracket. Based on the structure of the moving contact assembly, high temperature rise at the moving contact assembly is prone to occur during use of the switch device.

[0051] In some related technologies, a switching structure is connected in the terminal strip and the mounting bracket. The switching structure can make the terminal strip perpendicular to the mounting bracket, so that the possibility of high temperature rise at the moving contact assembly can be reduced. However, the structure of the moving contact assembly is relatively complex, and the manufacturing cost is high.

[0052] Based on the above, the present application provides a moving contact assembly and a switch device.

[0053] In order for those skilled in the art to better understand the present application, the moving contact assembly and the switch device provided by the present application will be described clearly and completely in conjunction with the accompanying drawings.

[0054] Exemplarily, the application example provides a switch device, which can include a housing, a static contact, and a movable contact assembly. The movable contact assembly can include a wiring strip. The static contact is fixedly installed on the housing, and the movable contact assembly is movably installed on the housing. Part of the wiring strip is arranged outside the housing and connected with an external wire.

[0055] The switch device can be a circuit breaker, a disconnector, a contactor, or the like. The application example only takes the switch device as a circuit breaker for example.

[0056] The housing can be made of an insulating material, such as polyvinyl chloride, polycarbonate (also known as PC plastic), or the like.

[0057] The static contact can be fixedly connected to the housing by means of threaded connection, riveting, welding, or the like.

[0058] The movable contact assembly can be movably connected to the housing. The movable contact body in the movable contact assembly can be in contact with the static contact. At this time, the circuit breaker is in a closed state, and there is current in the circuit. In the case of abnormal conditions such as overload and short circuit in the circuit, the movable contact body can be separated from the static contact. At this time, the circuit breaker is in an open state, and there is no current in the circuit.

[0059] The movable contact assembly can include a wiring strip. One end of the wiring strip can extend outside the housing and be connected with an external wire. The other end of the wiring strip can extend into the housing and be connected with the movable contact body. The wiring strip can realize the electrical connection between the external wire and the movable contact body, and further realize the electrical connection between the circuit breaker and the external wire.

[0060] The specific structure of the movable contact assembly can be seen in the relevant description below, which will not be described here.

[0061] Based on the switch device provided in the above example, Figure 1 For the structure diagram of the movable contact assembly provided in the application example, please refer to Figure 1 Part of the wiring strip 110 arranged outside the housing can be a wiring segment. The wiring segment is provided with a mounting hole 111. The movable contact assembly 100 includes an abutting piece. Part of the abutting piece is arranged in the mounting hole 111. In the case of shaking of the wiring segment relative to the housing, the abutting piece can abut against the outer wall of the housing.

[0062] The wiring segment refers to the part of the wiring row 110 that extends to the outside of the shell. The wiring segment can be provided with a mounting hole 111. The mounting hole 111 can be a through hole, or it can be a blind hole. The mounting hole 111 can be a threaded hole, or it can be a light hole. A part of the abutting member can be provided in the mounting hole 111. The abutting member can be a screw, a rivet, or other structures, and at least one end of the abutting member can protrude from the plane of the wiring segment where the mounting hole 111 is provided, as long as it can abut against the outer wall of the shell when the wiring segment moves relative to the shell.

[0063] During the use of the circuit breaker, the wiring row 110 can move relative to the shell. In the example of the present application, by providing an abutting member on the wiring segment, and in the case where the wiring row 110 moves relative to the shell, the abutting member can abut against the shell. Since the abutting member can abut against the shell, and the abutting member is provided on the wiring segment, the abutment between the abutting member and the shell can limit the amplitude of the movement of the wiring segment relative to the shell.

[0064] Based on the switch device provided in the above example, the shell is provided with a limiting hole (not shown in the figure), and the part of the wiring row 110 that extends to the outside of the shell is provided through the limiting hole. The switch device can include a matching clamping protrusion and a clamping groove, at least part of the clamping protrusion can be clamped into the clamping groove, the clamping protrusion is provided on the wiring row 110, and the clamping groove is provided on the hole wall of the limiting hole. Alternatively, the clamping protrusion is provided on the hole wall of the limiting hole, and the clamping groove is provided on the wiring row 110.

[0065] The part of the wiring row 110 that extends to the outside of the shell through the limiting hole can be the wiring segment. The shape of the limiting hole is matched with the shape of the wiring row 110. Exemplarily, the shape of the limiting hole can be rectangular, circular, or other shapes, and the example of the present application only describes the case where the limiting hole is rectangular.

[0066] The number of clamping protrusions and clamping grooves can be equal, and the clamping protrusions and clamping grooves correspond one by one. The clamping protrusion can be provided with one or more.

[0067] The clamping protrusion can be provided on one side wall of the limiting hole, or it can be provided on multiple side walls of the limiting hole, and in this case, the clamping groove is correspondingly provided on the side wall of the wiring row 110.

[0068] Alternatively, the clamping protrusion can also be provided on one side wall of the wiring row 110, or it can be provided on multiple side walls of the wiring row 110, and in this case, the clamping groove is correspondingly provided on one side wall of the limiting hole, and the present application does not make specific limitations on this.

[0069] The clamping protrusion can be at least one of a boss, a column, a point, etc. The shape of the clamping groove is matched with the shape of the clamping protrusion. The application examples do not specifically limit the shapes of the clamping protrusion and the clamping groove, as long as the clamping protrusion can be clamped into the clamping groove, and the relative position of the wiring strip 110 and the shell can be limited through the cooperation of the clamping protrusion and the clamping groove.

[0070] In the application examples, on the basis of the wiring strip 110 being fixedly installed on the wiring strip 110 through the mounting bracket 120, the clamping protrusion and the clamping groove are arranged, one of the clamping protrusion and the clamping groove is arranged on the wiring strip 110, and the other is arranged on the hole wall of the mounting hole 111. The mounting hole 111 is arranged on the shell. The relative position of the wiring strip 110 and the shell can be limited through the cooperation of the clamping protrusion and the clamping groove, and the amplitude of the wiring strip 110 relative to the shell is reduced.

[0071] Based on the switch device mentioned in the above examples, the switch device can be provided with only the matched clamping groove and clamping protrusion, or only the abutting member, or both the matched clamping groove and clamping protrusion and the abutting member. The application examples do not specifically limit this.

[0072] Next, the moving contact assembly 100 mentioned above is described in the application examples.

[0073] For example, the application examples provide a moving contact assembly, Figure 2 A cooperation schematic view of a wiring strip and a mounting bracket is provided in the application examples, Figure 3 A cooperation schematic view of a wiring strip and a mounting bracket is provided in the application examples.

[0074] Please refer to Figures 1-3 The moving contact assembly 100 is applied to a switch device. The moving contact assembly 100 can include a moving contact body 130, a mounting bracket 120, and a wiring strip 110. The mounting bracket 120 is fixedly installed on a shell of the switch device, and the moving contact body 130 is movably connected with the mounting bracket 120. The wiring strip 110 is fixedly connected with the mounting bracket 120, and the wiring strip 110 and the mounting bracket 120 cooperatively form a non-zero included angle A.

[0075] The moving contact body 130 can include a moving contact rod and a moving contact point connected with each other. The moving contact rod can be connected with the mounting bracket 120, and the moving contact rod is movable relative to the mounting bracket 120. The moving contact assembly 100 can be moved to a position in contact with a stationary contact, or a position separated from the moving contact.

[0076] The moving contact body 130 can also include a plurality of moving contact pieces and a moving contact point connected with each other. The moving contact pieces can be connected with the mounting bracket 120, and the moving contact pieces are movable relative to the mounting bracket 120.

[0077] The mounting frame 120 can be fixedly connected to the shell by screw connection, riveting, etc. The movable contact body 130 can be movably connected to the mounting frame 120 by hole shaft connection, flexible connection or other connection modes.

[0078] The wiring bar 110 and the mounting frame 120 can be integrally formed, and the wiring bar 110 and the mounting frame 120 can also be fixedly connected by clamping, welding, screw connection, etc.

[0079] The manufacturing materials of the wiring bar 110 and the mounting frame 120 can be the same or different, as long as the wiring bar 110 and the mounting frame 120 have good electrical conductivity, and reliable electrical connection between the electrical loop inside the switch device and the external lead can be achieved. For example, the wiring bar 110 and the mounting frame 120 can be made of copper or copper alloy materials.

[0080] The wiring bar 110 and the mounting frame 120 cooperate to form a non-zero included angle A. It can be understood that the side of the mounting frame 120 away from the bottom wall of the shell cooperates with the side wall of the wiring bar 110 to form an included angle A. The non-zero included angle A can refer to any one of an acute angle, a right angle or an obtuse angle.

[0081] Based on the above, in the example of the present application, the mounting frame 120 is fixedly connected to the shell, and the movable contact assembly 100 is movably connected to the mounting frame 120. Based on this, the movable contact assembly 100 can be moved to a position in contact with the static contact of the switch device, and the switch device is in the closed state. The movable contact assembly 100 can also be moved to a position separated from the static contact of the switch device, and at this time, the switch device is in the open state.

[0082] In the example of the present application, by setting the wiring bar 110 and the mounting frame 120 to cooperate to form a non-zero included angle A, during use of the switch device, part of the wiring bar 110 is exposed to the outside of the shell, so that the external air flows through a larger area of the wiring bar 110, and the heat generated at the wiring bar 110 exposed to the outside of the shell is easily taken away by the flowing external air, improving the heat dissipation efficiency at the wiring bar 110, reducing the temperature rise of the movable contact assembly 100 during use, and ensuring the use performance of the switch device.

[0083] In addition, in the case of a multi-phase switch device, since the wiring bar 110 and the mounting frame 120 are arranged at an angle, the distance between the wiring bars 110 corresponding to different phases is large, which is conducive to improving the insulation performance between different phases of the switch device. Moreover, the distance between the wiring bars 110 corresponding to different phases is large, which is conducive to the external air passing through between the wiring bars 110 corresponding to different phases, and is conducive to improving the heat dissipation efficiency at the wiring bar 110, reducing the temperature rise at the wiring bar 110, reducing the temperature rise of the movable contact assembly 100 during use, and ensuring the use performance of the switch device.

[0084] Compared with the prior art, the vertical arrangement of the wiring strip 110 and the mounting rack 120 is achieved by setting the adapter structure. In the example of the present application, the wiring strip 110 is directly connected with the mounting rack 120, and the wiring strip 110 and the mounting rack 120 cooperate to form a non-zero included angle A. The setting of the adapter structure is saved, the structure of the movable contact assembly 100 is simplified, and the manufacturing cost of the movable contact assembly 100 is reduced.

[0085] Based on the movable contact assembly 100 provided in the above example, Figure 4 A cooperation schematic diagram of the wiring strip and the mounting rack is provided in the example of the present application. The wiring strip 110 is substantially perpendicular to the mounting rack 120.

[0086] The substantially perpendicular wiring strip 110 and the mounting rack 120 mean that the side of the mounting rack 120 away from the bottom wall of the shell is substantially perpendicular to the side wall of the wiring strip 110. Specifically, it can be understood that the side of the mounting rack 120 away from the bottom wall of the shell cooperates with the side wall of the wiring strip 110 to form an included angle A greater than or equal to 85 degrees and less than or equal to 95 degrees.

[0087] In the example of the present application, by setting the substantially perpendicular wiring strip 110 and the mounting rack 120, the heat generated at the wiring strip 110 exposed to the outside of the shell can be easily taken away by the flowing external air, the heat dissipation efficiency at the wiring strip 110 is improved, the temperature rise of the movable contact assembly 100 during use is reduced, and the use performance of the switch device is ensured.

[0088] Based on the movable contact assembly 100 provided in the above example, Figure 5 A structure schematic diagram of the wiring strip is provided in the example of the present application. Please refer to Figure 5 The side of the wiring strip 110 facing the mounting rack 120 is provided with a first mounting groove 112, and part of the mounting rack 120 extends into the first mounting groove 112.

[0089] The side of the mounting rack 120 facing the wiring strip 110 can be provided with a first limiting protrusion, and the first limiting protrusion can extend into the first mounting groove 112. The mounting rack 120 can also directly extend into the first mounting groove 112. The specific connection mode of the wiring strip 110 and the mounting rack 120 is not limited in the example of the present application.

[0090] The mounting rack 120 can be interference fit with the first mounting groove 112. The mounting rack 120 and the groove wall of the first mounting groove 112 can also be adhesively bonded, welded or fixedly connected by other means. The connection mode between the mounting rack 120 and the groove wall of the first mounting groove 112 is not specifically limited in the example of the present application, as long as the connection reliability between the wiring strip 110 and the mounting rack 120 is ensured.

[0091] In the example of the present application, the first mounting groove 112 is arranged on the wiring strip 110, and the partial mounting rack 120 can extend into the first mounting groove 112. Therefore, the connection between the mounting rack 120 and the wiring strip 110 can be achieved by the cooperation between the first mounting groove 112 and the mounting rack 120.

[0092] Based on the above example, the movable contact assembly 100 is provided, Figure 6 Another structure diagram of the wiring strip provided in the example of the present application is shown in Figure 7 The structure diagram of the mounting rack provided in the example of the present application is shown in Figure 6 With Figure 7 The side of the mounting rack 120 facing the wiring strip 110 is provided with a second mounting groove 122, and the partial wiring strip 110 extends into the second mounting groove 122.

[0093] The side of the wiring strip 110 facing the mounting rack 120 can be provided with a second limiting protrusion, which can extend into the second mounting groove 122. The wiring strip 110 can also directly extend into the second mounting groove 122. The specific connection mode between the wiring strip 110 and the mounting rack 120 is not limited in the example of the present application.

[0094] The wiring strip 110 can be interference fit with the second mounting groove 122. The wiring strip 110 and the groove wall of the second mounting groove 122 can also be adhesively bonded, welded or fixedly connected by other means. The connection mode between the wiring strip 110 and the groove wall of the second mounting groove 122 is not specifically limited in the example of the present application, as long as the connection reliability between the wiring strip 110 and the mounting rack 120 is ensured.

[0095] In the example of the present application, the second mounting groove 122 is arranged on the mounting rack 120, and the partial wiring strip 110 can extend into the second mounting groove 122. Therefore, the connection between the mounting rack 120 and the wiring strip 110 can be achieved by the cooperation between the second mounting groove 122 and the wiring strip 110.

[0096] Based on the above example, the movable contact assembly 100 is provided, Figure 5 With Figure 7 The side of the wiring strip 110 facing the mounting rack 120 is provided with a first mounting groove 112, and the side of the mounting rack 120 facing the wiring strip 110 is provided with a second mounting groove 122. The groove wall of the first mounting groove 112 and the groove wall of the second mounting groove 122 can be mutually clamped.

[0097] For the specific implementation mode of the first mounting groove 112 and the second mounting groove 122, please refer to the related description of the first mounting groove 112 and the second mounting groove 122 in the foregoing example. The example of the present application will not be repeated here.

[0098] In the example of the present application, the first mounting groove 112 is arranged on the wiring strip 110, and the second mounting groove 122 is arranged on the mounting rack 120. The clamping of the first mounting groove 112 and the second mounting groove 122 can realize the clamping of the wiring strip 110 and the mounting rack 120.

[0099] Based on the movable contact assembly 100 provided in the above example, in the case that the wiring strip 110 is provided with the first mounting groove 112, the slot of the first mounting groove 112 can be provided with a first guide surface, and the inclination direction of the first guide surface is adapted to the assembly direction of the mounting rack 120.

[0100] In the case that the mounting rack 120 is provided with the second mounting groove 122, the slot of the second mounting groove 122 can be provided with a second guide surface, and the inclination direction of the second guide surface is adapted to the assembly direction of the wiring strip 110.

[0101] The specific implementation of the first guide surface and the second guide surface is similar, and the functions are similar. Next, the first guide surface will be described as an example.

[0102] By setting the first guide surface, the size of the first mounting groove 112 can be reduced along the direction of inserting the mounting rack 120 into the first mounting groove 112. Based on this, during the process of inserting the mounting rack 120 into the first mounting groove 112, the mounting rack 120 first extends into the end of the first mounting groove 112 with the largest size, which facilitates the extension of the mounting rack 120 into the first mounting groove 112 and improves the assembly efficiency of the mounting rack 120 and the wiring strip 110.

[0103] Based on the movable contact assembly 100 provided in the above example, please refer to Figure 5 and Figure 6 The movable contact assembly 100 can further include a first transition block 113. One side of the first transition block 113 is connected to the first side of the wiring strip 110, and the other side of the first transition block 113 is connected to the mounting rack 120. In the direction away from the mounting rack 120, the cross-sectional area of the first transition block 113 decreases.

[0104] The first transition block 113 can be integrally formed with the wiring strip 110. The first transition block 113 can also be connected together by welding, groove and protrusion cooperation and other connection methods. The first transition block can also be integrally formed with the mounting rack 120. The first transition block can also be connected together with the mounting rack 120 by welding, groove and protrusion cooperation and other connection methods. The example of the present application does not make specific limitations on this, and the example of the present application only takes the fixed connection of the first transition block 113 and the wiring strip 110 as an example for illustration.

[0105] The first transition block 113 is connected to the first side of the wiring strip 110. The first side of the wiring strip 110 can be adjacent to the outer wall of the wiring strip 110 cooperating with the shell.

[0106] In the example of the present application, by connecting the first transition block 113 between the first side of the wiring strip 110 and the mounting rack 120, the amplitude of the shaking of the wiring strip 110 relative to the mounting rack 120 can be reduced, and the use reliability of the movable contact assembly 100 can be ensured.

[0107] In addition, since the cross-sectional area of the first transition block 113 decreases in the direction away from the mounting rack 120, the current reaching the wiring strip 110 via the mounting rack 120 can gradually change, so that the possibility of the current reaching the wiring strip 110 via the mounting rack 120 is low, which is beneficial to ensure the use performance of the movable contact assembly 100.

[0108] Based on the movable contact assembly 100 provided in the above example, referring to Figure 7 , the movable contact assembly 100 can further include a second transition block 123, one side of the second transition block 123 is connected with the second side of the wiring strip 110, the second side is arranged adjacent to the first side, the other side of the second transition block 123 is connected with the mounting rack 120, and the cross-sectional area of the second transition block 123 decreases in the direction away from the wiring strip 110.

[0109] The second transition block 123 can be integrally formed with the mounting rack 120, the second transition block 123 can also be connected with the mounting rack 120 by welding, cooperation of grooves and protrusions, etc., and the second transition block can also be connected with the wiring strip 110 by welding, cooperation of grooves and protrusions, etc., which is not specifically limited in the example of the present application.

[0110] The second transition block 123 is connected to the second side of the wiring strip 110, which can refer to the side wall of the wiring strip 110 adjacent to the first side, and the second side does not cooperate with the housing.

[0111] In the example of the present application, by connecting the second transition block 123 between the second side of the wiring strip 110 and the mounting rack 120, the amplitude of the shaking of the wiring strip 110 relative to the mounting rack 120 can be further reduced, and the use reliability of the movable contact assembly 100 can be ensured.

[0112] In addition, since the cross-sectional area of the second transition block 123 decreases in the direction away from the wiring strip 110, the current reaching the wiring strip 110 via the mounting rack 120 can gradually change, so that the possibility of the current reaching the wiring strip 110 via the mounting rack 120 is low, which is beneficial to ensure the use performance of the movable contact assembly 100.

[0113] Based on the movable contact assembly 100 provided in the above example, at least two of the wiring strip 110, the mounting rack 120, the first transition block 113, and the second transition block 123 can be integrally formed.

[0114] By integrally forming at least two of the wiring strip 110, the mounting rack 120, the first transition block 113, and the second transition block 123, the connection reliability between different structural members in the movable contact assembly 100 can be ensured, and the use reliability of the movable contact assembly 100 can be ensured.

[0115] Based on the movable contact assembly 100 provided in the above example, the side of the mounting rack 120 away from the wiring strip 110 is provided with a wiring slot 121, the movable contact body 130 includes a soft connection 131 and a movable contact piece 132 connected together, and the end of the soft connection 131 away from the movable contact piece 132 is fixedly connected to the slot wall of the wiring slot 121.

[0116] The soft connection 131 can be a copper braid or other conductive material with a certain flexibility. One soft connection 131 can be connected with multiple movable contact pieces 132, and one soft connection 131 can also be connected with only one movable contact piece 132. Multiple soft connections 131 can be connected in one wiring slot 121, and one soft connection 131 can also be connected in one wiring slot 121. In the examples of the present application, this is not specifically limited.

[0117] The end of the soft connection 131 away from the movable contact piece 132 can be fixedly connected to the slot wall of the wiring slot 121 by welding or other means.

[0118] In the examples of the present application, the wiring slot 121 can provide a mounting space for the soft connection 131. Since the wiring slot 121 is arranged on the mounting rack 120, the connection of the soft connection 131 and the mounting rack 120 can be facilitated by arranging the wiring slot 121.

[0119] The movable contact assembly 100 includes the movable contact piece 132 and the soft connection 131 connected together, and the movable contact piece 132 is connected to the mounting rack 120 through the soft connection 131. Due to the good flexibility of the soft connection 131, the movable contact piece 132 is easy to move relative to the mounting rack 120, so that the relative position of the movable contact assembly 100 and the stationary contact is easy to change, and thus the switching of the use state of the switch device is easy.

[0120] Finally, it should be noted that the above examples are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A moving contact assembly, characterized by, The application is applied to a switch device, and the moving contact assembly comprises: a moving contact body; a mounting frame fixedly mounted on a shell of the switch device, the moving contact body being movably connected with the mounting frame; a busbar fixedly connected with the mounting frame, and the busbar and the mounting frame form a non-zero included angle in cooperation.

2. The movable contact assembly of claim 1, wherein, The busbar is substantially perpendicular to the mounting frame.

3. The movable contact assembly of claim 1, wherein, A first mounting groove is arranged on one side of the busbar facing the mounting frame, and part of the mounting frame extends into the first mounting groove.

4. The movable contact assembly of any of claims 1-3, wherein, A second mounting groove is arranged on one side of the mounting frame facing the busbar, and part of the busbar extends into the second mounting groove.

5. The movable contact assembly of claim 1, wherein, The moving contact assembly further comprises a first transition block, one side of the first transition block being connected with a first side of the busbar, and the other side of the first transition block being connected with the mounting frame, and the cross-sectional area of the first transition block decreases in a direction away from the mounting frame.

6. The movable contact assembly of claim 5, wherein, The moving contact assembly further comprises a second transition block, one side of the second transition block being connected with a second side of the busbar, the second side being arranged adjacent to the first side, and the other side of the second transition block being connected with the mounting frame, and the cross-sectional area of the second transition block decreases in a direction away from the busbar.

7. The movable contact assembly of any of claims 1-3, wherein, One side of the mounting frame away from the busbar is provided with a wiring groove, and the moving contact body comprises a flexible connection and a moving contact piece connected with each other, one end of the flexible connection away from the moving contact piece is fixedly connected to a groove wall of the wiring groove.

8. A switching device, characterized by The switch device comprises a shell, a stationary contact, and the moving contact assembly according to any one of claims 1 to 7, the moving contact assembly comprising a busbar, the stationary contact is fixedly mounted on the shell, the moving contact assembly is movably mounted on the shell, and part of the busbar is arranged outside the shell and connected with an external wire.

9. The switching device of claim 8, wherein Part of the busbar arranged outside the shell is a wiring segment, and the wiring segment is provided with a mounting hole, the moving contact assembly comprises an abutting piece, part of the abutting piece is arranged in the mounting hole, and the abutting piece can abut to an outer wall of the shell in the case that the wiring segment shakes relative to the shell.

10. The switching device of claim 9, wherein The shell is provided with a limiting hole, and part of the busbar passes through the limiting hole and is exposed outside the shell; the switch device comprises cooperating clamping protrusions and clamping grooves, and at least part of the clamping protrusions can be clamped into the clamping grooves, the clamping protrusions are arranged on the busbar, and the clamping grooves are arranged on a hole wall of the limiting hole; or the clamping protrusions are arranged on the hole wall of the limiting hole, and the clamping grooves are arranged on the busbar.

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