Static contact assembly and switch device

Abstract

The utility model provides a static contact assembly and switch equipment, and relates to the technical field of low-voltage electric appliances. The static contact assembly is applied to the switch equipment. The static contact assembly comprises a static contact body and a line bank. The static contact body is fixed on a housing of the switch device. The line bank is fixedly connected to one end of the static contact body, part of the line bank penetrates through the shell, and the line bank and the static contact body are matched to form a non-zero included angle. According to the static contact assembly provided by the embodiment of the invention, the heat dissipation efficiency of the static contact assembly can be improved, the possibility of a relatively high temperature rise phenomenon at the static contact assembly is reduced, and the use performance of the switch equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical apparatus, and particularly relates to a static 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 and the static contact are separated, the circuit breaker is in an open state. The static contact and the terminal strip can cooperate to form a static contact assembly, and the static contact can be connected with the external wire through the terminal strip.

[0004] Based on the structure of the existing static contact assembly, in the use process of the circuit breaker, the temperature at the static contact assembly is prone to rising, which affects the use performance of the circuit breaker. Invention content

[0005] The present application provides a static contact assembly and a switching device. According to the static contact assembly provided in the examples of the present application, the heat dissipation efficiency of the static contact assembly can be improved, the possibility of high temperature rise at the static 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 static contact assembly applied to a switching device, which includes a static contact body and a terminal strip. The static contact body is fixed to the shell of the switching device. The terminal strip is fixedly connected to one end of the static contact body, and part of the terminal strip is arranged in the shell. The terminal strip and the static contact body cooperate to form a non-zero included angle.

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

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

[0009] In addition, in the case of a multi-phase switch device, the distance between the busbars corresponding to different phases can be large due to the non-zero included angle formed by the busbars and the static contact body, which is conducive to improving the insulation performance between different phases of the switch device. Moreover, the distance between the busbars corresponding to different phases is large, which is conducive to the passage of external air between the busbars corresponding to different phases, and is conducive to improving the heat dissipation efficiency at the busbars, reducing the temperature rise generated at the busbars, reducing the temperature rise generated by the static contact assembly during use, and ensuring the use performance of the switch device.

[0010] Compared with the prior art, the vertical arrangement of the busbar and the static contact body is achieved by setting the adapter structure. In the example of the present application, the busbar is directly connected to the static contact body, and the busbar and the static contact body form a non-zero included angle, thereby saving the setting of the adapter structure, simplifying the structure of the static contact assembly, and reducing the manufacturing cost of the static contact assembly.

[0011] In some possible implementation manners, the busbar is substantially perpendicular to the static contact body.

[0012] By arranging the busbar substantially perpendicular to the static contact body, the heat generated at the busbar exposed to the outside of the shell can be easily carried away by the flowing external air, thereby improving the heat dissipation efficiency at the busbar, reducing the temperature rise generated by the static contact assembly during use, and ensuring the use performance of the switch device.

[0013] In some possible implementation manners, the static contact assembly further includes a first transition block, one side of the first transition block is connected to the side of the static contact body facing the busbar, and the other side of the first transition block is connected to the busbar. In the direction away from the static contact body, the cross-sectional area of the first transition block decreases.

[0014] By connecting the first transition block between the busbar and the static contact body, the amplitude of the shaking of the busbar relative to the static contact body can be reduced, and the use reliability of the static contact assembly can be ensured.

[0015] In addition, since the cross-sectional area of the first transition block decreases in the direction away from the static contact body, the current passing through the static contact body to the busbar can gradually change, so that the possibility of sudden change of the current flowing through the static contact body to the busbar is low, and the use performance of the static contact assembly can be ensured.

[0016] In some possible implementation manners, the static contact assembly further includes a second transition block, one side of the second transition block is connected to the side of the static contact body facing the busbar, and the other side of the second transition block is connected to the busbar. In the direction away from the busbar, the cross-sectional area of the second transition block decreases.

[0017] By connecting the second transition block between the busbar and the static contact body, the amplitude of the busbar relative to the static contact body can be further reduced, and the use reliability of the static contact assembly can be ensured.

[0018] In addition, since the cross-sectional area of the second transition block decreases in the direction away from the busbar, the current passing through the static contact body to the busbar can gradually change, so that the current flowing through the static contact body to the busbar is less likely to change abruptly, which is beneficial to ensure the use performance of the static contact assembly.

[0019] In some possible implementations, the static contact body is integrally arranged with the busbar.

[0020] By arranging the static contact body integrally with the busbar, the assembly process of the static contact body and the busbar can be saved, the connection reliability of the static contact body and the busbar can be ensured, and the use reliability of the static contact body and the busbar can be ensured.

[0021] In some possible implementations, the side of the static contact body facing the busbar is provided with a first mounting slot, and part of the busbar is clamped to the first mounting slot, and / or the side of the busbar facing the static contact body is provided with a second mounting slot, and part of the static contact body is clamped to the second mounting slot.

[0022] In the example of the present application, when the static contact assembly is provided with the first mounting slot, since the first mounting slot is arranged on the static contact body and part of the busbar can extend into the first mounting slot, the connection of the static contact body and the busbar can be achieved through the cooperation of the first mounting slot and the busbar.

[0023] When the static contact assembly is provided with the second mounting slot, since the second mounting slot is arranged on the busbar and part of the static contact body can extend into the second mounting slot, the connection of the static contact body and the busbar can be achieved through the cooperation of the second mounting slot and the static contact body.

[0024] When the static contact assembly is provided with both the first mounting slot and the second mounting slot, the first mounting slot is arranged on the static contact body and the second mounting slot is arranged on the busbar, and the clamping of the busbar and the static contact body can be achieved through the clamping of the first mounting slot and the second mounting slot.

[0025] In some possible implementations, when the static contact body is provided with the first mounting slot, the slot of the first mounting slot 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 busbar. When the busbar is provided with the second mounting slot, the slot of the second mounting slot 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 static contact body.

[0026] By setting the first guide surface, along the direction of the wiring harness row inserted into the first mounting groove, the size of the first mounting groove can be made smaller. Based on this, in the process of inserting the wiring harness row into the first mounting groove, the wiring harness row first extends into the end of the first mounting groove with the largest size, facilitating the extension of the wiring harness row into the first mounting groove, and facilitating the improvement of the assembly efficiency of the wiring harness row.

[0027] The second guide surface has a similar implementation manner and similar role to the first guide surface, and the examples of the present application will not be described here.

[0028] In a second aspect, the present application provides a switch device, which comprises a housing, a movable contact, and a static contact assembly provided in the above-mentioned first aspect and each possible implementation manner of the first aspect. The static contact assembly comprises a wiring harness row, the movable contact is movably mounted on the housing, the static contact assembly is fixedly mounted on the housing, and part of the wiring harness row is arranged outside the housing and connected with an external wire.

[0029] The above-mentioned second aspect and each possible design of the above-mentioned second aspect have the beneficial effects as described in the above-mentioned first aspect and each possible implementation manner of the first aspect, which will not be described here.

[0030] In some possible implementation manners, the part of the wiring harness row arranged outside the housing is a wiring segment, the wiring segment is provided with a mounting hole, the static contact assembly comprises an abutting piece, the abutting piece is arranged through the mounting hole, and in the case that the wiring segment moves relative to the housing, the abutting piece can abut against the outer wall of the housing.

[0031] In the use process of the circuit breaker, the wiring harness row may shake relative to the housing. In the examples of the present application, the abutting piece is arranged on the wiring segment, and in the case that the wiring harness row shakes relative to the housing, the abutting piece can abut against the housing. Since the abutting piece can abut against the housing, and the abutting piece is arranged on the wiring segment, the abutment between the abutting piece and the housing can limit the amplitude of the shaking of the wiring segment relative to the housing.

[0032] In some possible implementation manners, the housing is provided with a limiting hole, and part of the wiring harness row is arranged through the limiting hole to be exposed outside the housing. The switch device comprises 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 arranged on the wiring harness row, 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 harness row.

[0033] In the example of the present application, on the basis of the fixed installation of the busbar on the static contact body, the clamping protrusion and the clamping groove are arranged, one of the clamping protrusion and the clamping groove is arranged on the busbar, and the other is arranged on the hole wall of the mounting hole, and the mounting hole is arranged on the shell. The cooperation of the clamping protrusion and the clamping groove can limit the relative position of the busbar and the shell, and reduce the amplitude of the shaking of the busbar relative to the shell. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A structural schematic diagram of a static contact assembly provided in the example of the present application.

[0035] Figure 2 A structural schematic diagram of a static contact assembly provided in the example of the present application.

[0036] Figure 3 A structural schematic diagram of a static contact assembly provided in the example of the present application.

[0037] Figure 4 A cooperation schematic diagram of a static contact body, a first transition block and a static contact point provided in the example of the present application.

[0038] Figure 5 A structural schematic diagram of a busbar provided in the example of the present application.

[0039] Figure 6 A structural schematic diagram of another busbar provided in the example of the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 100, static contact assembly; 110, static contact body; 111, static contact point; 112, first transition block; 113, first mounting slot; 120, busbar; 121, mounting hole; 122, second transition block; 123, second mounting slot. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the example of the present application more clear, the technical scheme of the example of the present application will be described clearly and completely below in combination with the drawings in the example of the present application. Obviously, the described example is a part of the example of the present application, but not all the examples. Based on the example in the present application, all other examples obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are only for the purpose of describing specific examples and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0044] References to "examples" herein mean that a particular feature, structure, or characteristic described in connection with the examples may 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 refer to the same example, nor does it constitute an independent or alternative example that is mutually exclusive of other examples. It is understood, both explicitly and implicitly, by those skilled in the art that the examples described herein may be combined with other examples.

[0045] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists, A and B exist, and B exists. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0046] The directional words appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the static contact assembly and the switch device of the present application.

[0047] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0048] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure can refer to a physical connection. For example, the physical connection can be a fixed connection, such as a fixed connection through a barrier, such as a fixed connection through screws, bolts, or other barrier; the physical connection can also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Switching devices can switch the usage state of a 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 in the circuit.

[0051] The circuit breaker generally includes a stationary contact and a movable contact. When the movable contact is separated from the stationary contact, the circuit breaker is in an open state. The stationary contact, the busbar, and other structures can cooperate to form a stationary contact assembly. The stationary contact can be connected to an external conductor through the busbar.

[0052] Based on the structure of the existing stationary contact assembly, the busbar is directly or indirectly mounted on the housing, and the busbar is parallel to the stationary contact body. Based on this structure of the stationary contact assembly, a high temperature rise at the stationary contact assembly is likely to occur during the use of the switching device.

[0053] In some related technologies, an adapter structure is connected in the busbar and the mounting bracket. The adapter structure can make the busbar perpendicular to the stationary contact. In this way, the possibility of a high temperature rise at the stationary contact assembly can be reduced. However, this structure of the stationary contact assembly is relatively complex and has a high manufacturing cost.

[0054] Based on the above, the examples of the present application provide a stationary contact assembly and a switching device.

[0055] In order for those skilled in the art to better understand the present application, the stationary contact assembly and the switching device provided by the examples of the present application will be described clearly and completely below with reference to the accompanying drawings.

[0056] Exemplarily, the examples of the present application provide a switching device. The switching device includes a housing, a movable contact, and a stationary contact assembly. The stationary contact assembly includes a busbar. The movable contact is movably mounted on the housing. The stationary contact assembly is fixedly mounted on the housing. Part of the busbar is arranged outside the housing and connected to an external conductor.

[0057] The switching device can be a circuit breaker, a disconnector, a contactor, or the like. The examples of the present application are described by taking the switching device as a circuit breaker.

[0058] The housing can be made of an insulating material, such as polyvinyl chloride, polycarbonate (also known as PC plastic), or the like.

[0059] The movable contact can be movably connected to the housing through a hole shaft cooperation, a flexible connection, or other means. The movable contact can be moved to a position in contact with the stationary contact assembly. At this time, the circuit breaker is in a closed state, and a current passes through the circuit. In the case of an abnormal state such as an overload or a short circuit in the circuit, the movable contact can be moved to a position separated from the stationary contact assembly. At this time, the circuit breaker is in an open state, and no current passes through the circuit.

[0060] The static contact assembly can be fixedly connected to the shell by screwing, riveting, welding, etc.

[0061] The static contact assembly can include a static contact body and a terminal strip connected thereto. One end of the terminal strip can extend outside the shell and be connected to an external wire. The other end of the terminal strip can extend into the shell and be connected to the static contact body. The terminal strip can achieve electrical connection between the external wire and the static contact body, thereby achieving electrical connection between the circuit breaker and the external wire.

[0062] The specific structure of the static contact assembly can be seen in the relevant description below, which will not be described in detail in this example.

[0063] Based on the above example, the switch device provided by the application, Figure 1 The structure of the static contact assembly provided in this example is shown in Figure 1 The part of the terminal strip 120 outside the shell is a wiring segment, which is provided with a mounting hole 121. The static contact assembly 100 includes an abutting member, which is arranged in the mounting hole 121 and can abut against the outer wall of the shell when the wiring segment moves relative to the shell.

[0064] The wiring segment refers to the part of the terminal strip 120 that extends outside the shell. The wiring segment can be provided with a mounting hole 121. The mounting hole 121 can be a through hole or a blind hole. The mounting hole 121 can be a threaded hole or a smooth hole. A part of the abutting member can be arranged in the mounting hole 121. The abutting member can be a screw, a rivet or other structures. At least one end of the abutting member can protrude from the plane of the wiring segment provided with the mounting hole 121, as long as it can abut against the outer wall of the shell when the wiring segment moves relative to the shell.

[0065] During the use of the circuit breaker, the terminal strip 120 can move relative to the shell. In this example, an abutting member is arranged on the wiring segment, and the abutting member can abut against the shell when the terminal strip 120 moves relative to the shell. Since the abutting member can abut against the shell and is arranged 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.

[0066] Based on the above example, the switch device provided by the application, the shell is provided with a limiting hole, and part of the terminal strip 120 is arranged in the limiting hole and exposed outside the shell. The switch device includes 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 arranged on the terminal strip 120, 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 terminal strip 120.

[0067] The part of the wiring strip 120 that passes through the limiting hole and is exposed to the outside of the shell can be a wiring segment. The shape of the limiting hole is matched with the shape of the wiring strip 120. Exemplarily, the shape of the limiting hole can be rectangular, circular, or other shapes, and the examples of the present application are described only by taking the limiting hole as rectangular.

[0068] The number of the clamping protrusions and the clamping grooves can be equal, and the clamping protrusions and the clamping grooves correspond one by one. The clamping protrusion can be provided with one or more.

[0069] The clamping protrusion can be arranged on one hole wall of the limiting hole, and the clamping protrusion can also be arranged on multiple hole walls of the limiting hole, at this time, the clamping groove is correspondingly arranged on the side wall of the wiring strip 120.

[0070] Alternatively, the clamping protrusion can also be arranged on one side wall of the wiring strip 120, and the clamping protrusion can also be arranged on multiple side walls of the wiring strip 120, at this time, the clamping groove is correspondingly arranged on one side wall of the limiting hole, and the examples of the present application do not make specific limitations on this.

[0071] The clamping protrusion can be at least one of a boss, a column, a point, etc., and the shape of the clamping groove is matched with the shape of the clamping protrusion. The examples of the present application do not make specific limitations on the shape 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 120 and the shell can be limited through the cooperation of the clamping protrusion and the clamping groove.

[0072] In the examples of the present application, on the basis of the wiring strip 120 being fixedly installed on the wiring strip 120 through the static contact body 110, the clamping protrusion and the clamping groove are arranged, one of the clamping protrusion and the clamping groove is arranged on the wiring strip 120, and the other is arranged on the hole wall of the mounting hole 121, and the mounting hole 121 is arranged on the shell. Through the cooperation of the clamping protrusion and the clamping groove, the relative position of the wiring strip 120 and the shell can be limited, and the amplitude of the wiring strip 120 relative to the shell is reduced.

[0073] Based on the switch device mentioned in the above examples, the switch device can only be provided with the clamping groove and the clamping protrusion matched with each other, or only be provided with the abutting member, or be provided with both the clamping groove and the clamping protrusion matched with each other and the abutting member. The examples of the present application do not make specific limitations on this.

[0074] Next, the static contact assembly 100 mentioned above is described by the examples of the present application.

[0075] Exemplarily, the present application provides a static contact assembly 100, Figure 2 The structural schematic diagram of the static contact assembly provided by the examples of the present application is shown in Figure 1 and Figure 2The static contact assembly 100 is applied to a switch device, and the static contact assembly 100 can include a static contact body 110 and a wiring strip 120. The static contact body 110 is fixed to a housing of the switch device. The wiring strip 120 is fixedly connected to one end of the static contact body 110, and part of the wiring strip 120 penetrates the housing. The wiring strip 120 cooperates with the static contact body 110 to form a non-zero included angle A.

[0076] The switch device can be a circuit breaker, a disconnector, a contactor, etc. The examples in the present application are described by taking the switch device as a circuit breaker.

[0077] The switch device can be single-phase or multi-phase. Each phase of the switch device can correspond to one static contact assembly 100.

[0078] The static contact body 110 and the wiring strip 120 included in the static contact assembly 100 can be two independent components. In this case, the static contact body 110 can be fixedly connected to the wiring strip 120 by riveting, clamping, threaded connection, welding, etc. The static contact body 110 and the wiring strip 120 can also be integrally formed, which is not specifically limited in the examples of the present application.

[0079] One end of the wiring strip 120 away from the static contact body 110 can penetrate a limiting hole on the housing. Part of the wiring strip 120 can extend from the limiting hole to the outside of the housing to be connected to an external conductor wire, so as to realize the electrical connection between the static contact body 110 and the external conductor wire through the wiring strip 120.

[0080] The static contact body 110 can be fixedly connected to the housing of the switch device by threaded connection, riveting, fusion connection or other methods.

[0081] The manufacturing materials of the wiring strip 120 and the static contact body 110 can be the same or different, as long as the wiring strip 120 and the static contact body 110 have good electrical conductivity and can realize reliable electrical connection between the electrical loop inside the switch device and the external conductor wire. For example, the wiring strip 120 and the static contact body 110 can be made of copper or copper alloy materials.

[0082] The side of the static contact body 110 away from the wiring strip can be provided with a static contact point 111. The static contact point 111 can be in contact with or separated from a movable contact point in the movable contact, so as to realize the switching of the use state of the switch device.

[0083] The wiring strip 120 cooperates with the static contact body 110 to form a non-zero included angle A. It can be understood that the non-zero included angle A is formed between the wall of the wiring strip 120 and the wall of the static contact body 110. The wall of the wiring strip 120 refers to the wall between the first side and the second side of the wiring strip 120 and cooperates with the static contact body 110. The first side refers to the outer wall of the wiring strip 120 that cooperates with the shell, and the second side refers to the outer wall opposite to the first side of the wiring strip 120. The non-zero included angle A can refer to any one of an acute angle, a right angle or an obtuse angle.

[0084] Based on the above, in the example of the present application, the static contact assembly 100 is fixedly connected to the shell, and the movable contact is movably connected to the shell. The movable contact can be moved to a position in contact with the static contact assembly 100, and the switchgear is in a closed state. The movable contact can also be moved to a position away from the static contact assembly 100, and the switchgear is in an open state.

[0085] By setting the wiring strip 120 to cooperate with the static contact body 110 to form a non-zero included angle A, during use of the switchgear, part of the wiring strip 120 is exposed to the outside of the shell, so that the external air flows through a larger area of the wiring strip 120, and the heat generated at the exposed wiring strip 120 is easily taken away by the flowing external air, improving the heat dissipation efficiency of the wiring strip 120, reducing the temperature rise of the static contact assembly 100 during use, and ensuring the use performance of the switchgear.

[0086] In addition, in the case of a multi-phase switchgear, since the wiring strip 120 cooperates with the static contact body 110 to form a non-zero included angle A, the distance between the wiring strips 120 corresponding to different phases is large, which is beneficial to improve the insulation performance between different phases of the switchgear. Moreover, the distance between the wiring strips 120 corresponding to different phases is large, which is beneficial to the external air passing through the wiring strips 120 corresponding to different phases, and is beneficial to improve the heat dissipation efficiency of the wiring strip 120, reduce the temperature rise of the wiring strip 120, reduce the temperature rise of the static contact assembly during use, and ensure the use performance of the switchgear.

[0087] Compared with the prior art, by setting the adapter structure to realize the vertical arrangement of the wiring strip 120 and the static contact body 110, in the example of the present application, the wiring strip 120 is directly connected to the static contact body 110, and the wiring strip 120 cooperates with the static contact body 110 to form a non-zero included angle A, thereby saving the setting of the adapter structure, simplifying the structure of the static contact assembly 100, and reducing the manufacturing cost of the static contact assembly 100.

[0088] Based on the static contact assembly 100 provided in the above example, Figure 3 For the structure diagram of the static contact assembly provided in the example of the present application, please refer to Figure 3The busbar 120 is substantially perpendicular to the static contact body 110.

[0089] The busbar 120 is substantially perpendicular to the static contact body 110 means that the side of the static contact body 110 away from the bottom wall of the shell is substantially perpendicular to the side wall of the busbar 120, and specifically can be understood as that the non-zero included angle A formed by the side of the static contact body 110 away from the bottom wall of the shell and the side wall of the busbar 120 is greater than or equal to 85 degrees and less than or equal to 95 degrees.

[0090] In the examples of the present application, by arranging the busbar 120 substantially perpendicular to the static contact body 110, the heat generated at the busbar 120 exposed to the outside of the shell can be easily taken away by the flowing external air, the heat dissipation efficiency at the busbar 120 is improved, the temperature rise of the static contact assembly 100 during use is reduced, and the use performance of the switch device is ensured.

[0091] Based on the static contact assembly 100 provided in the above examples, Figure 4 For the cooperation schematic diagram of the static contact body, the first transition block and the static contact point provided in the examples of the present application, please refer to Figure 4 The static contact assembly 100 can further include a first transition block 112, one side of the first transition block 112 is connected to the side of the static contact body 110 facing the busbar 120, and the other side of the first transition block 112 is connected to the side wall of the busbar 120. In the direction away from the static contact body 110, the cross-sectional area of the first transition block 112 decreases.

[0092] The first transition block 112 can be integrally formed with the busbar 120, and the first transition block 112 can also be connected together by welding, cooperation of grooves and protrusions and the like. The first transition block 112 can also be integrally formed with the static contact body 110, and the first transition block 112 can also be connected together with the static contact body 110 by welding, cooperation of grooves and protrusions and the like. The examples of the present application do not make specific limitations thereon, and the examples of the present application only take the fixed connection of the first transition block 112 with the busbar 120 as an example for illustration.

[0093] In the examples of the present application, by connecting the first transition block 112 between the side of the static contact body 110 facing the busbar 120 and the busbar 120, the amplitude of the shaking of the busbar 120 relative to the static contact body 110 can be reduced, and the use reliability of the static contact assembly 100 is ensured.

[0094] In addition, since the cross-sectional area of the first transition block 112 decreases in the direction away from the static contact body 110, the current reaching the busbar 120 via the static contact body 110 can gradually change, so that the possibility of sudden change of the current flowing through the static contact body 110 to reach the busbar 120 is low, which is beneficial to ensure the use performance of the static contact assembly 100.

[0095] The static contact assembly 100 provided based on the above example, Figure 5 For the structure of the busbar provided in the present application, please refer to Figure 5 The static contact assembly 100 can also include a second transition block 122, one side of the second transition block 122 is connected to one side of the static contact body 110 towards the busbar 120, and the other side of the second transition block 122 is connected to the busbar 120, and the cross-sectional area of the second transition block 122 decreases in the direction away from the busbar 120.

[0096] The second transition block 122 can be integrally formed with the static contact body 110, the second transition block 122 can also be connected with the static contact body 110 by welding, groove and protrusion cooperation and other connection methods, the second transition block 122 can also be connected with the busbar 120 by welding, groove and protrusion cooperation and other connection methods, the present application does not make specific limitation on this.

[0097] The second transition block 122 is connected to the busbar 120, and the cooperating wall of the second transition block 122 and the busbar 120 can be adjacent to the cooperating wall of the first transition block 112 and the busbar 120.

[0098] In the present application, by connecting the second transition block 122 between the busbar 120 and the static contact body 110, the amplitude of the busbar 120 relative to the static contact body 110 can be further reduced, and the use reliability of the static contact assembly 100 can be ensured.

[0099] In addition, since the cross-sectional area of the second transition block 122 decreases in the direction away from the busbar 120, the current passing through the static contact body 110 to the busbar 120 can gradually change, so that the current passing through the static contact body 110 to the busbar 120 has a low probability of sudden change, which is beneficial to ensure the use performance of the static contact assembly 100.

[0100] In the present application, the static contact assembly 100 can only be provided with the first transition block 112, or only with the second transition block 122, or with both the first transition block 112 and the second transition block 122, and in the case of simultaneously providing the first transition block 112 and the second transition block 122, the first transition block 112 and the second transition block 122 can cooperate to form a non-zero included angle.

[0101] Based on the static contact assembly 100 provided in the above example, the static contact body 110 and the busbar 120 are integrally provided.

[0102] The static contact body 110 and the busbar 120 can be integrally formed by casting or other methods.

[0103] In the example of the present application, by setting the static contact body 110 and the wiring strip 120 to be integrated, the assembly process of the static contact body 110 and the wiring strip 120 can be saved, the connection reliability of the static contact body 110 and the wiring strip 120 can be ensured, and the use reliability of the static contact body 110 and the wiring strip 120 can be ensured.

[0104] Based on the static contact assembly 100 provided in the above example, at least two of the wiring strip 120, the static contact body 110, the first transition block 112, and the second transition block 122 can be integrally formed.

[0105] By setting at least two of the wiring strip 120, the static contact body 110, the first transition block 112, and the second transition block 122 to be integrally formed, the connection reliability between different structural parts in the static contact assembly 100 can be ensured, and the use reliability of the static contact assembly 100 can be ensured.

[0106] Based on the static contact assembly 100 provided in the above example, Figure 6 For another structural schematic diagram of the wiring strip provided in the example of the present application, please refer to Figures 4-6 The side of the static contact body 110 facing the wiring strip 120 is provided with a first mounting groove 113, and part of the wiring strip 120 is clamped to the first mounting groove 113, and / or the side of the wiring strip 120 facing the static contact body 110 is provided with a second mounting groove 123, and part of the static contact body 110 is clamped to the second mounting groove 123.

[0107] In the case where the side of the static contact body 110 facing the wiring strip 120 is provided with the first mounting groove 113, the side of the wiring strip 120 facing the static contact body 110 can be provided with a first limiting protrusion, and the first limiting protrusion can extend into the first mounting groove 113. The wiring strip 120 can also directly extend into the first mounting groove 113, and the specific connection mode of the wiring strip 120 and the static contact body 110 is not limited in the example of the present application.

[0108] The wiring strip 120 can be interference fit with the first mounting groove 113, and the wiring strip 120 and the groove wall of the first mounting groove 113 can also be adhesively bonded, welded, or fixedly connected by other means. The connection mode between the wiring strip 120 and the groove wall of the first mounting groove 113 is not specifically limited in the example of the present application, as long as the connection reliability between the wiring strip 120 and the static contact body 110 can be ensured.

[0109] In the case that the second mounting groove 123 is arranged on the side of the busbar 120 facing the static contact body 110, the side of the static contact body 110 facing the busbar 120 can be provided with a second limiting protrusion, and the second limiting protrusion can extend into the second mounting groove 123. The static contact body 110 can also directly extend into the second mounting groove 123, and the specific connection mode of the busbar 120 and the static contact body 110 is not limited in the examples of the present application.

[0110] The static contact body 110 can be in interference fit with the second mounting groove 123, and the static contact body 110 and the groove wall of the second mounting groove 123 can also be adhesively bonded, welded or fixedly connected by other means. The connection mode between the static contact body 110 and the groove wall of the second mounting groove 123 is not specifically limited in the examples of the present application, as long as the connection reliability between the busbar 120 and the static contact body 110 is ensured.

[0111] In the examples of the present application, the static contact assembly 100 can be provided with both the first mounting groove 113 and the second mounting groove 123, the first mounting groove 113 is arranged on the busbar 120, and the second mounting groove 123 is arranged on the static contact body 110. The clamping of the first mounting groove 113 and the second mounting groove 123 can realize the clamping of the busbar 120 and the static contact body 110.

[0112] In the case that the static contact assembly 100 is provided with the first mounting groove 113, since the first mounting groove 113 is arranged on the static contact body 110 and part of the busbar 120 can extend into the first mounting groove 113, the connection of the static contact body 110 and the busbar 120 can be realized by the cooperation of the first mounting groove 113 and the busbar 120.

[0113] In the case that the static contact assembly 100 is provided with the second mounting groove 123, since the second mounting groove 123 is arranged on the busbar 120 and part of the static contact body 110 can extend into the second mounting groove 123, the connection of the static contact body 110 and the busbar 120 can be realized by the cooperation of the second mounting groove 123 and the static contact body 110.

[0114] Based on the static contact assembly 100 provided in the above examples, in the case that the static contact body 110 is provided with the first mounting groove 113, the slot of the first mounting groove 113 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 busbar 120.

[0115] In the case that the busbar 120 is provided with the second mounting groove 123, the slot of the second mounting groove 123 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 static contact body 110.

[0116] The specific implementation manners of the first guide surface and the second guide surface are similar, and the functions are similar. Next, the first guide surface is taken as an example to describe the first guide surface and the second guide surface.

[0117] By setting the first guide surface, the size of the first mounting groove 113 can be reduced along the direction in which the wiring strip 120 is inserted into the first mounting groove 113. Based on this, in the process of inserting the wiring strip 120 into the first mounting groove 113, the wiring strip 120 first extends into the end of the first mounting groove 113 with the largest size, facilitating the extension of the wiring strip 120 into the first mounting groove 113, and facilitating the improvement of the assembly efficiency of the wiring strip 120.

[0118] Finally, it should be noted that the above embodiments are only specific implementations 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 within 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 stationary contact assembly, characterized in that The static contact assembly is applied to a switch device, and the static contact assembly comprises: a static contact body fixed to a housing of the switch device; a busbar fixedly connected to one end of the static contact body, and part of the busbar is arranged in the housing, and the busbar and the static contact body form a non-zero included angle.

2. The stationary contact assembly of claim 1, wherein, The busbar is substantially perpendicular to the static contact body.

3. The stationary contact assembly of claim 1, wherein, Further comprising a first transition block, one side of the first transition block is connected to one side of the static contact body facing the busbar, and the other side of the first transition block is connected to the busbar, and the cross-sectional area of the first transition block decreases in the direction away from the static contact body.

4. Static contact assembly according to any of claims 1 to 3, characterized in that Further comprising a second transition block, one side of the second transition block is connected to one side of the static contact body facing the busbar, and the other side of the second transition block is connected to the busbar, and the cross-sectional area of the second transition block decreases in the direction away from the busbar.

5. Static contact assembly according to any of claims 1 to 3, characterized in that The static contact body and the busbar are integrally arranged.

6. The stationary contact assembly of any one of claims 1-3, wherein, One side of the static contact body facing the busbar is provided with a first mounting groove, and part of the busbar is clamped to the first mounting groove, and / or, One side of the busbar facing the static contact body is provided with a second mounting groove, and part of the static contact body is clamped to the second mounting groove.

7. The stationary contact assembly of claim 6, wherein, In the case that the static contact body is provided with the first mounting groove, the slot of the first mounting groove can be provided with a first guide surface, and the inclination direction of the first guide surface is matched with the assembly direction of the busbar; In the case that the busbar is provided with the second mounting groove, the slot of the second mounting groove can be provided with a second guide surface, and the inclination direction of the second guide surface is matched with the assembly direction of the static contact body.

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

9. The switching device of claim 8, wherein Part of the busbar arranged outside the housing is a wire segment, and the wire segment is provided with a mounting hole, The static contact assembly comprises an abutting piece arranged in the mounting hole, and the abutting piece can abut against the outer wall of the housing when the wire segment moves relative to the housing.

10. The switching device of claim 9, wherein The housing is provided with a limiting hole, and part of the busbar is arranged in the limiting hole and exposed outside the housing; The switch device comprises matching 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 the hole wall of the mounting hole; or, The clamping protrusions are arranged on the hole wall of the mounting hole, and the clamping grooves are arranged on the busbar.

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