Contactor and reversible contactor

Abstract

The utility model provides a contactor and a reversible contactor, and belongs to the technical field of electrical equipment. The utility model provides a contactor. The contactor comprises a cover body and a knock-off plate. The cover body includes a first side located in a thickness direction of the contactor. The knock-off plate is connected to the first side, after the knock-off plate is knocked off from the cover body, an avoiding space is formed in the cover body, the avoiding space is used for accommodating a first surge suppressor of a target contactor, and the contactor is connected with the target contactor. According to the invention, the avoiding space is arranged on the contactor, and when the target contactor and the contactor form a reversible contactor, the part, protruding out of the target contactor, of the first surge suppressor on the target contactor can be located in the avoiding space, so that when the target contactor and the contactor are assembled, the first surge suppressor can be prevented from being damaged. And the gap between the target contactor and the contactor is smaller, so that the space required for mounting the reversible contactor is saved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a contactor and a reversible contactor. Background Art

[0002] Reversible contactor is a mechanical reversible AC contactor used to control the forward and reverse rotation of large power motors. It consists of two standard contactors and a mechanical interlocking unit, combining the advantages of AC contactor and forward and reverse switch, with the characteristics of easy operation, safety, reliability and low cost. It is mainly used for forward and reverse operation, reverse braking, constant operation and inching operation of motors.

[0003] Surge suppressor is one of the important components of reversible contactor. Surge suppressor is usually installed on the housing of contactor. Surge suppressor is divided into different specifications. Surge suppressors of different specifications require different capacitor specifications due to different voltages, which will lead to different sizes of surge suppressors. Large surge suppressors will protrude from the housing of contactor.

[0004] When two contactors form a reversible contactor, more space is often required to install a surge suppressor. Therefore, a contactor and a reversible contactor are urgently needed. Utility Model Content

[0005] The present application provides a contactor and a reversible contactor to reduce the space occupied by a surge suppressor.

[0006] In a first aspect, the present application provides a contactor, comprising a cover body and a knock-off plate. The cover body comprises a first side located in the thickness direction of the contactor. The knock-off plate is connected to the first side, and after the knock-off plate is knocked off the cover body, an escape space is formed on the cover body, and the escape space is used to accommodate a first surge suppressor of a target contactor, and the contactor is connected to the target contactor.

[0007] Through the above scheme, the present application sets a knock-off plate on the cover body, so that the knock-off plate is set on the first side of the cover body. When the knock-off plate is knocked off the cover body, the avoidance space set on the cover body can be exposed. Since the reversible contactor needs to be assembled with the target contactor, and when a large-volume surge suppressor is used in the reversible contactor, the part of the first surge suppressor on the target contactor protruding from the target contactor can be placed in the avoidance space. In this way, the gap between the contactor and the target contactor is reduced after the installation is completed, thereby saving the space required for the installation of the reversible contactor.

[0008] Moreover, the smaller the gap between the contactor and the target contactor, the more stable the connection between the contactor and the target contactor can be, reducing the probability that the components of the reversible contactor will loosen or disintegrate when the reversible contactor shakes or bumps during use due to the large gap between the contactor and the target contactor.

[0009] In a possible design, the knock-off plate includes a first plate and a second plate connected to each other, a non-zero angle is formed between the first plate and the second plate, and the first plate is bent relative to the second plate away from the target contactor.

[0010] Through the above scheme, the knock-off plate includes a first plate and a second plate connected to each other, and the first plate is bent relative to the second plate away from the target contactor, so that it is easier to form an escape space on the contactor, so that the first surge suppressor can also be more easily placed in the escape space, reducing the difficulty of installing the contactor and the target contactor, and reducing the assembly cost of the reversible contactor.

[0011] In a possible design, the knock-out plate and the cover body are integrally formed, and the knock-out plate and the cover body are connected via a thin-wall structure.

[0012] Through the above scheme, when the knock-off plate is fixedly connected to the cover body, since during the assembly process of the reversible contactor, the knock-off plate needs to be removed from the cover body to expose the avoidance space for the installation of the first surge suppressor, the knock-off plate and the cover body are connected through a thin-walled structure, so that it can not only ensure that the knock-off plate can be fixed on the cover body when it is not necessary to knock off the knock-off plate, but also can be easily removed from the cover body when it is necessary to knock off the knock-off plate. The difficulty of the reversible contactor during installation is reduced, and the assembly efficiency of the reversible contactor is increased.

[0013] In a possible design, the knock-off plate is snap-fitted or plug-fitted to the cover body.

[0014] Through the above scheme, the knock-off plate and the cover body are arranged to be snap-fitted or plug-fitted, so that the knock-off plate and the cover body can be detachably connected. This can not only ensure that the knock-off plate can be easily removed from the cover body when it is necessary to knock off the knock-off plate, but also when the contactor needs to be reused, if the avoidance space is not needed, the knock-off plate can be reinstalled on the cover body. In this way, the flexibility of the use of the contactor is improved, and the contactor can be reused.

[0015] In a possible design, the second plate is provided with a notch for inserting a tool, and the tool is used to pry off the knock-off plate.

[0016] Through the above scheme, since the volume of the contactor is generally small, and the volume of the knock-off plate arranged on the cover body is even smaller, when the knock-off plate needs to be knocked off the cover body, the tool can be inserted into the notch set on the second plate to pry up the knock-off plate. In this way, the removal of the knock-off plate becomes simple, thereby reducing the difficulty of removing the knock-off plate, reducing the difficulty of the reversible contactor during the installation process, and increasing the assembly efficiency of the reversible contactor.

[0017] In a possible design, the contactor further includes a second surge suppressor, which is installed on a second side of the contactor in the thickness direction, and the second side is opposite to the first side.

[0018] Through the above scheme, since the second surge suppressor needs to be installed on the contactor, an installation space is set on the second side of the cover body for installing the second surge suppressor. Since the second surge suppressor and the first surge suppressor have the same size specifications, the space for installing the second surge suppressor is set at a position opposite to the avoidance space. In this way, the second surge suppressor will not affect the assembly of the reversible contactor, thereby ensuring the assembly efficiency of the reversible contactor.

[0019] In a second aspect, the present application provides a reversible contactor, which includes a first surge suppressor, a target contactor, and the contactor mentioned in the first aspect. The target contactor is connected to the contactor, and the first side is the side of the cover body facing the target contactor. The first surge suppressor is installed on the target contactor and protrudes from the target contactor toward the contactor, and the portion of the first surge suppressor protruding from the target contactor is located in the avoidance space.

[0020] Through the above scheme, the present application sets an avoidance space on the contactor. When the target contactor and the contactor form a reversible contactor, the portion of the first surge suppressor on the target contactor that protrudes from the target contactor can be located in the avoidance space. In this way, when the target contactor and the contactor are assembled, the gap between the target contactor and the contactor is smaller, saving the space required for installing the reversible contactor.

[0021] In a possible design, the first side is in contact with a side of the target contactor that faces the contactor.

[0022] Through the above scheme, since the target contactor and the contactor are assembled into a reversible contactor, the contactor is provided with an escape space, and the first surge suppressor is located in the escape space, so the first side of the contactor can be fitted with one side of the target contactor, thus further saving the space required for the installation of the reversible contactor when assembling the reversible contactor. In addition, the fit between the target contactor and the contactor can also make the reversible contactor more stable during use, reducing the probability of the reversible contactor being unstable during use due to the gap between the contactor and the target contactor.

[0023] In a possible design, the reversible contactor further includes a connector, one end of which is connected to the contactor, and the other end of which is connected to the target contactor.

[0024] Through the above scheme, a connector is provided on the reversible contactor, and the connector is used to connect the contactor to the target contactor. This can reduce the occurrence of problems with the reversible contactor due to loose connection between the contactor and the target contactor during use of the reversible contactor, thereby increasing the reliability of the reversible contactor during use.

[0025] In a possible design, there are multiple connectors, and the multiple connectors are connected to different parts of the contactor and the target contactor.

[0026] Through the above scheme, the number of connectors is set to be multiple, which can further increase the stability of the connection between the contactor and the target contactor. Multiple connectors are connected to different parts of the contactor and the target contactor, so that different parts of the contactor and the target contactor can be connected together, reducing the possibility of loosening or disintegration of some parts of the contactor and the target contactor during the use of the reversible contactor due to the part of the contactor not being connected, thereby increasing the reliability of the reversible contactor during use.

[0027] The beneficial effects of the reversible contactor provided in the second aspect can be referred to the beneficial effects brought about by the first aspect and the various possible implementation methods of the first aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a reversible contactor provided in an embodiment of the present application.

[0029] Figure 2 A partial structural exploded view of a reversible contactor provided in an embodiment of the present application.

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

[0031] Figure 4 A schematic diagram of the structure of the contactor provided in an embodiment of the present application after the knock-off plate is removed.

[0032] Figure 5 A schematic diagram of the structure of the cover body provided in an embodiment of the present application.

[0033] Figure 6 A schematic diagram of the structure of the knock-out plate provided in an embodiment of the present application.

[0034] Figure 7 A structural schematic diagram of one of the connection methods between the knock-out plate and the cover body provided in an embodiment of the present application.

[0035] Figure 8 A structural schematic diagram of another connection method between the knock-out plate and the cover body provided in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 100, contactor; 110, first side; 120, second side;

[0038] 200, cover body; 210, avoidance space;

[0039] 300, knock-off plate; 310, first plate; 320, second plate; 321, notch; 330, thin-walled structure;

[0040] 400, a first surge suppressor;

[0041] 500, target contactor;

[0042] 600, a second surge suppressor;

[0043] 700. Reversible contactor; 710. Connector. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] The directional words appearing in the following description are all directions shown in the figures, and do not limit the static contact of a circuit breaker of the present application and the specific structure of the circuit breaker. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, the terms "first", "second", etc. in the specification 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 of the features.

[0051] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0053] Figure 1 A schematic diagram of the structure of a reversible contactor provided in an embodiment of the present application. Figure 2 This is a partial structural exploded view of the reversible contactor provided in the embodiment of the present application. Figure 1 as well as Figure 2 As shown, the present application provides a reversible contactor 700, which includes a first surge suppressor 400, a target contactor 500 and a contactor 100. The first surge suppressor 400 is mounted on the target contactor 500 and protrudes from the target contactor 500 toward the contactor 100, and the portion of the first surge suppressor 400 protruding from the target contactor 500 is located in the avoidance space 210.

[0054] The reversible contactor 700 is a mechanical reversible AC contactor 100 for controlling the forward and reverse rotation of a relatively high-power motor. The reversible contactor 700 is composed of a target contactor 500, a contactor 100 and a mechanical interlocking unit. The reversible contactor 700 combines the advantages of the AC contactor 100 and the forward and reverse switch, such as simple operation, safety, reliability, and low cost. The reversible contactor 700 is mainly used for the forward and reverse operation, reverse braking, constant operation, and inching operation of the motor.

[0055] The surge suppressor is one of the important components of the reversible contactor 700. When the coil of the contactor 100 is disconnected, the electromagnetic energy stored in the magnetic current loop will be released, forming an overvoltage wave, which may seriously interfere with electronic equipment, cause insulation burnout or damage sensitive devices. The surge suppressor can limit the overvoltage and release energy, protecting the electrical appliances, the contactor 100 and the power grid from damage caused by overvoltage.

[0056] The target contactor 500 is provided with an installation space on one side facing the contactor 100, and the first surge suppressor 400 is installed in the installation space, and a portion of the first surge suppressor 400 faces the contactor 100 and protrudes from the target contactor 500. The first side 110 of the contactor 100, that is, the side of the contactor 100 facing the target contactor 500, is provided with an escape space 210. When the target contactor 500 and the contactor 100 form a reversible contactor 700, the first surge suppressor 400 protruding from the target contactor 500 is located in the escape space 210 of the contactor 100.

[0057] Through the above configuration, the present application sets an avoidance space 210 on the contactor 100. When the target contactor 500 and the contactor 100 form a reversible contactor 700, the portion of the first surge suppressor 400 on the target contactor 500 that protrudes from the target contactor 500 can be located in the avoidance space 210. In this way, when the target contactor 500 and the contactor 100 are assembled, the gap between the target contactor 500 and the contactor 100 is smaller, saving the space required for the installation of the reversible contactor 700.

[0058] like Figure 1 As shown, the first side 110 of the contactor 100 is in contact with a side of the target contactor 500 that faces the contactor 100 .

[0059] Through the above arrangement, since the target contactor 500 and the contactor 100 are assembled into the reversible contactor 700, the contactor 100 is provided with the escape space 210, and the first surge suppressor 400 is located in the escape space 210, the first side 110 of the contactor 100 can be fitted with one side of the target contactor 500. In this way, the space required for the installation of the reversible contactor 700 is further saved when assembling the reversible contactor 700. In addition, the fit of the target contactor 500 and the contactor 100 can also make the reversible contactor 700 more stable during use, reducing the probability of the problem of unstable connection of the reversible contactor 700 during use due to the gap between the contactor 100 and the target contactor 500.

[0060] Please continue to refer to Figure 1 as well as Figure 2As shown, the reversible contactor 700 further includes a connector 710 , one end of the connector 710 is connected to the contactor 100 , and the other end of the connector 710 is connected to the target contactor 500 .

[0061] The connector 710 may be a buckle, or may be in a plate shape. The size of the connector 710 may be selected according to the size of the contactor 100 and / or the target contactor 500 .

[0062] One end of the connector 710 may be fixedly connected to the contactor 100, and the other end of the connector 710 may be detachably connected to the target contactor 500. Alternatively, one end of the connector 710 may be fixedly connected to the target contactor 500, and the other end of the connector 710 may be detachably connected to the contactor 100. Alternatively, both ends of the connector 710 may be detachably connected to the contactor 100 and the target contactor 500, respectively.

[0063] The contactor 100 and the target contactor 500 may both be provided with a connection portion, one end of the connector 710 may be connected to the connection portion provided on the contactor 100 , and the other end of the connector 710 may be connected to the connection portion on the target contactor 500 .

[0064] Through the above arrangement, a connector 710 is provided on the reversible contactor 700, and the connector 710 is used to connect the contactor 100 to the target contactor 500. This can reduce the problem of the reversible contactor 700 disintegrating due to the loose connection between the contactor 100 and the target contactor 500 during use, thereby increasing the reliability of the reversible contactor 700 during use.

[0065] Please continue to refer to Figure 1 as well as Figure 2 As shown, there may be multiple connectors 710 , and the multiple connectors 710 are connected to different parts of the contactor 100 and the target contactor 500 .

[0066] The number of connectors 710 may be two, three or four, etc. The multiple connectors 710 may be connected to the same side of the contactor 100 and the target contactor 500 , or may be connected to opposite sides of the contactor 100 and the target contactor 500 .

[0067] Through the above configuration, the number of the connectors 710 is set to be multiple, which can further increase the stability of the connection between the contactor 100 and the target contactor 500. Multiple connectors 710 are connected to different parts of the contactor 100 and the target contactor 500, so that the different parts of the contactor 100 and the target contactor 500 can be connected together, reducing the possibility of the part of the contactor 100 and the target contactor 500 being loose or disintegrated during the use of the reversible contactor 700 due to the part of the contactor 100 and the target contactor 500 not being connected, thereby increasing the reliability of the reversible contactor 700 during use.

[0068] Next, the structure of the contactor 100 will be described in detail with reference to the accompanying drawings.

[0069] Figure 3 A schematic diagram of the structure of a contactor provided in an embodiment of the present application. Figure 4 A schematic diagram of the structure of the contactor provided in an embodiment of the present application after the knock-off plate is removed. Figure 5 This is a schematic diagram of the structure of the cover body provided in the embodiment of the present application. Figure 1 , Figures 3 to 5 As shown, the present application provides a contactor 100, which includes a cover body 200 and a knock-off plate 300. The cover body 200 includes a first side 110 located in the thickness direction of the contactor 100. The knock-off plate 300 is connected to the first side 110, and after the knock-off plate 300 is knocked off the cover body 200, an escape space 210 is formed on the cover body 200, and the escape space 210 is used to accommodate the first surge suppressor 400 of the target contactor 500, and the contactor 100 is connected to the target contactor 500.

[0070] The cover body 200 may be a cover body on the upper cover of the contactor 100, and there is an installation space between the cover body 200 and the upper cover of the contactor 100, and some components of the contactor 100 are arranged in the installation space. The cover body 200 may be detachably connected to the upper cover of the contactor 100, or the cover body 200 may be fixedly connected to the upper cover of the contactor 100.

[0071] The knock-off plate 300 may be a plate-like structure disposed on the cover body 200. There is a gap between the knock-off plate 300 and the cover body 200, and the gap may be an escape space 210. The escape space 210 may be a groove structure disposed on the cover body 200, and the escape space 210 may be integrally formed with the cover body 200, or the escape space 210 may be disposed on the cover body 200 by carving or grooving after the cover body 200 is formed.

[0072] The target contactor 500 may be assembled with the contactor 100 to form the reversible contactor 700. The thickness direction of the contactor 100 may be the direction in which the target contactor 500 is assembled with the contactor 100. The first side 110 may be a side of the contactor 100 close to the target contactor 500.

[0073] Since surge suppressors are divided into different specifications, surge suppressors of different specifications require different capacitor specifications due to different voltage levels, which will cause the surge suppressors to have different sizes. When a small-volume surge suppressor is used in the reversible contactor 700, it is not necessary to knock the knock-off plate 300 off the cover body 200. When a large-volume surge suppressor is used in the reversible contactor 700, the knock-off plate 300 can be knocked off the cover body 200, so that part of the first surge suppressor 400 of the target contactor 500 is placed in the avoidance space 210 formed after the knock-off plate 300 is knocked off by the cover body 200.

[0074] Through the above arrangement, the present application sets a knock-off plate 300 on the cover body 200, so that the knock-off plate 300 is set on the first side 110 of the cover body 200. When the knock-off plate 300 is knocked off the cover body 200, the escape space 210 set on the cover body 200 can be exposed. Since the reversible contactor 700 requires the contactor 100 and the target contactor 500 to be assembled, and when a large-volume surge suppressor is used in the reversible contactor 700, the portion of the first surge suppressor 400 on the target contactor 500 protruding from the target contactor 500 can be placed in the escape space 210, so that the gap between the contactor 100 and the target contactor 500 is reduced after the installation is completed, thereby saving the space required for the installation of the reversible contactor 700.

[0075] Furthermore, the smaller the gap between the contactor 100 and the target contactor 500, the more stable the connection between the contactor 100 and the target contactor 500 can be, thereby reducing the probability that the components of the reversible contactor 700 will become loose or disintegrate when the reversible contactor 700 shakes or bumps during use due to the large gap between the contactor 100 and the target contactor 500.

[0076] The knock-off plate 300 may have various structures. The knock-off plate 300 may be composed of only one plate, or may be composed of two plates. In the following, the present application takes the knock-off plate 300 composed of two plates as an example for illustration.

[0077] Figure 6 This is a schematic diagram of the structure of the knock-off plate provided in the embodiment of the present application. Figure 2 and Figure 6The knock-off plate 300 includes a first plate 310 and a second plate 320 connected to each other, a non-zero angle is formed between the first plate 310 and the second plate 320 , and the first plate 310 is bent relative to the second plate 320 and faces away from the target contactor 500 .

[0078] The first plate 310 may be plate-shaped. The second plate 320 may also be plate-shaped. The first plate 310 and the second plate 320 may be integrally formed, or the first plate 310 and the second plate 320 may be separately formed and then assembled. The angle between the first plate 310 and the second plate 320 may be 60°, 85°, or 90°, etc.

[0079] Through the above arrangement, the knock-off plate 300 includes a first plate 310 and a second plate 320 that are connected to each other, and the first plate 310 is bent relative to the second plate 320 away from the target contactor 500, so that the avoidance space 210 can be more easily formed on the contactor 100, so that the first surge suppressor 400 can also be more easily placed in the avoidance space 210, reducing the difficulty of installing the contactor 100 and the target contactor 500, and reducing the assembly cost of the reversible contactor 700.

[0080] The connection method between the knock-off plate 300 and the cover body 200 and how to remove the knock-off plate 300 from the cover body 200 are described in detail below.

[0081] The knock-off plate 300 may be fixedly connected to the cover body 200 , or the knock-off plate 300 may be detachably connected to the cover body 200 .

[0082] When the knock-off plate 300 is fixedly connected to the cover body 200 , the knock-off plate 300 and the cover body 200 are integrally formed, and the knock-off plate 300 and the cover body 200 are connected via the thin-wall structure 330 .

[0083] The thin-walled structure 330 may be a plate-like structure with a wall thickness thinner than the size of the knock-off plate 300. The connection between the knock-off plate 300 and the cover body 200 may all be thin-walled structures 330. The thin-walled structure 330 may be arranged in various forms.

[0084] Figure 7 This is a schematic diagram of a structure of one of the connection modes between the knock-off plate and the cover body provided in an embodiment of the present application. Figure 7 As shown, the thin-walled structure 330 can be an integral whole, which simplifies the manufacture of the cover body 200 and the knock-off plate 300. It is only necessary to thin the connection between the knock-off plate 300 and the cover body 200 by grinding or other techniques.

[0085] Figure 8 This is a schematic diagram of another connection method between the knock-off plate and the cover body provided in the embodiment of the present application. Figure 8As shown, the thin-walled structure 330 can also be arranged in a breakpoint arrangement between the knock-off plate 300 and the cover body 200. This arrangement can make it easier to knock off the knock-off plate 300 from the cover body 200, thereby saving more effort during the assembly process of the reversible contactor 700.

[0086] In summary, when the knock-off plate 300 is fixedly connected to the cover body 200, since during the assembly process of the reversible contactor 700, the knock-off plate 300 needs to be removed from the cover body 200 to expose the avoidance space 210 for the installation of the first surge suppressor 400, the knock-off plate 300 and the cover body 200 are connected through the thin-walled structure 330, so that not only can it be ensured that the knock-off plate 300 can be fixed on the cover body 200 when it is not necessary to knock off the knock-off plate 300, but also when it is necessary to knock off the knock-off plate 300, the knock-off plate 300 can be easily removed from the cover body 200. The difficulty of the reversible contactor 700 during the installation process is reduced, and the assembly efficiency of the reversible contactor 700 is increased.

[0087] When the knock-off plate 300 is detachably connected to the cover body 200 , the knock-off plate 300 may be snap-fitted or plug-fitted to the cover body 200 .

[0088] At this time, an inserting strip may be provided on the knock-off plate 300 and a slot may be provided on the cover body 200 , or a slot may be provided on the knock-off plate 300 and an inserting strip may be provided on the cover body 200 .

[0089] Through the above-mentioned arrangement, the knock-off plate 300 and the cover body 200 are arranged to be snap-fitted or plug-fitted, so that the knock-off plate 300 and the cover body 200 can be detachably connected. This can not only ensure that the knock-off plate 300 can be easily removed from the cover body 200 when it is necessary to knock off the knock-off plate 300, but also when the contactor 100 needs to be reused, if the avoidance space 210 is not needed, the knock-off plate 300 can be reinstalled on the cover body 200. In this way, the flexibility of the use of the contactor 100 is improved, and the contactor 100 can also be reused.

[0090] like Figure 5 as well as Figure 6 As shown, the second plate 320 is provided with a notch 321 , and the notch 321 is used for inserting a tool, and the tool is used to pry off the knock-off plate 300 .

[0091] The notch 321 can be provided on the second plate 320, and the notch 321 can be circular or square, etc. The notch 321 can be integrally formed with the second plate 320 when the second plate 320 is formed, or the notch 321 can be provided on the second plate 320 by carving or grooving after the second plate 320 is formed.

[0092] Through the above arrangement, since the volume of the contactor 100 is generally small, and the volume of the knock-off plate 300 arranged on the cover body 200 is even smaller, when the knock-off plate 300 needs to be knocked off the cover body 200, the tool can be inserted into the notch 321 set on the second plate 320 to pry up the knock-off plate 300. In this way, the disassembly of the knock-off plate 300 becomes simple, thereby reducing the difficulty of disassembling the knock-off plate 300, reducing the difficulty of the reversible contactor 700 during the installation process, and increasing the assembly efficiency of the reversible contactor 700.

[0093] like Figures 1 to 4 As shown, the contactor 100 further includes a second surge suppressor 600 . The second surge suppressor 600 is installed on a second side 120 of the contactor 100 in the thickness direction. The second side 120 is opposite to the first side 110 .

[0094] The second surge suppressor 600 may have the same size and specifications as the first surge suppressor 400 .

[0095] The second side 120 of the cover body 200 is provided with an installation space for installing the second surge suppressor 600 , and the second side 120 is located opposite to the first side 110 .

[0096] Through the above arrangement, since the second surge suppressor 600 needs to be installed on the contactor 100, an installation space is set on the second side 120 of the cover body 200 for the installation of the second surge suppressor 600. Since the second surge suppressor 600 and the first surge suppressor 400 have the same size specifications, the space for installing the second surge suppressor 600 is set at a position opposite to the avoidance space 210. In this way, the second surge suppressor 600 will not affect the assembly of the reversible contactor 700, thereby ensuring the assembly efficiency of the reversible contactor 700.

Claims

1. A contactor, characterized in that: include: A cover body including a first side located in a thickness direction of the contactor; A knock-off plate is connected to the first side. After the knock-off plate is knocked off the cover body, an escape space is formed on the cover body. The escape space is used to accommodate a first surge suppressor of a target contactor, and the contactor is connected to the target contactor.

2. The contactor according to claim 1, characterized in that: The knock-off plate includes a first plate and a second plate connected to each other, a non-zero angle is formed between the first plate and the second plate, and the first plate is bent relative to the second plate and away from the target contactor.

3. The contactor according to claim 1 or 2, characterized in that: The knock-off plate and the cover body are integrally formed, and the knock-off plate and the cover body are connected via a thin-wall structure.

4. The contactor according to claim 1 or 2, characterized in that: The knock-off plate is snap-connected or plug-connected with the cover body.

5. The contactor according to claim 2, characterized in that: The second plate is provided with a notch for inserting a tool, and the tool is used to pry off the knock-off plate.

6. The contactor according to claim 1, characterized in that: The contactor further includes a second surge suppressor installed on a second side of the contactor in the thickness direction, the second side being opposite to the first side.

7. A reversible contactor, characterized in that: comprising a first surge suppressor, a target contactor and a contactor as claimed in any one of claims 1 to 6; The target contactor is connected to the contactor, and the first side is a side of the cover body facing the target contactor; The first surge suppressor is mounted on the target contactor and protrudes from the target contactor toward the contactor, and a portion of the first surge suppressor protruding from the target contactor is located in the avoidance space.

8. The reversible contactor according to claim 7, characterized in that: The first side is in contact with a side of the target contactor facing the contactor.

9. The reversible contactor according to claim 7 or 8, characterized in that: A connecting member is also included, one end of which is connected to the contactor, and the other end of which is connected to the target contactor.

10. The reversible contactor according to claim 9, characterized in that: There are multiple connectors, and the multiple connectors are connected to different parts of the contactor and the target contactor.

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