Protective structure and contactor

Abstract

The utility model provides a protection structure and a contactor, and relates to the technical field of electrical control. The protection structure is applied to the contactor, the contactor comprises a wiring terminal, the wiring terminal is connected with an external wire, the protection structure comprises a cover body and a protection door, the cover body covers the wiring terminal, the protection door is connected to the side, away from the wiring terminal and opposite to the end portion of the wiring terminal, of the cover body, and the protection door can be opened or closed. Wherein the protective door comprises a knock-off plate and a protective plate, a wire passing port is formed in the protective door after the knock-off plate is knocked off, the wire passing port is used for allowing an external wire to pass through, and the protective plate shields the wiring terminal. The protection structure can well protect the wiring terminal and reduce the possibility that the wiring terminal is exposed, thereby improving the protection level of the contactor.

Description

Technical Field

[0001] The present application relates to the field of electrical control technology, and in particular to a protective structure and a contactor. Background Art

[0002] In electrical control systems, contactors are common control components used to connect or disconnect current in a circuit.

[0003] The contactor includes a first side and a second side located opposite to each other, and usually, the first side and the second side are both provided with terminals. The terminals on the first side can be connected to a power source through an external wire connected to the terminals on the first side. The terminals on the second side can be connected to a load through an external wire connected to the terminals on the second side, so as to realize the connection between the power source and the load of the contactor.

[0004] However, in the existing contactors, the wiring terminals are exposed, which makes the protection level of the contactor low. Utility Model Content

[0005] The present application provides a protection structure, which can better protect the wiring terminals and reduce the possibility of the wiring terminals being exposed, so as to improve the protection level of the contactor.

[0006] In a first aspect, the present application provides a protective structure, the protective structure comprising a cover body and a protective door, the cover body is provided to cover the wiring terminal, the protective door is connected to a side of the cover body away from the wiring terminal and opposite to the end of the wiring terminal, and the protective door can be opened or closed. The protective door comprises a knock-off plate and a protective plate, after the knock-off plate is knocked off, a wire opening is formed on the protective door, the wire opening is used for external wiring to pass through, and the protective plate shields the wiring terminal.

[0007] Through the protection structure provided by the first aspect, a protection door is arranged on the cover body, and after the knock-off plate on the protection door is knocked off, a wire opening can be formed on the protection door, and the wire opening can avoid external wiring when the protection structure is installed on the contactor, so the setting of the protection door will not affect the installation of the protection structure on the contactor. After the knock-off plate is knocked off, a protective plate is still left on the protection door, and when the protection door is closed, the protective plate can cover the wiring terminals, play a protective role on the wiring terminals, reduce the possibility of the wiring terminals being exposed, and thus facilitate to improve the protection level of the contactor. In addition, the protective plate covers the wiring terminals, which can also reduce the dust, moisture or other foreign matter from entering the interior of the cover body and causing erosion to the wiring terminals.

[0008] In one possible design, the wiring terminal includes a first terminal and a second terminal at different positions, and the knock-out plate includes a first plate and a second plate, the first plate is opposite to the position of the first terminal, the second plate is opposite to the position of the second terminal, and the first plate and / or the second plate is knocked off.

[0009] The protective structure provided by this embodiment has three knock-off methods: knocking off the first plate, knocking off the second plate, and knocking off the first plate and the second plate at the same time. These three knock-off methods can be applicable to contactors with main contact terminals, can be applicable to only one type of terminal, and can be applicable to contactors of multiple different models. In response to different wiring requirements, the first plate and / or the second plate can be knocked off accordingly, thereby improving the universality of the protective structure.

[0010] In a possible design, the protection plate is located on a side of the second plate away from the first plate.

[0011] Through the protection structure provided by this embodiment, the protection plate is set on the side of the second plate away from the first plate. No matter whether the first plate or the second plate is knocked off, the protection plate can be closed to shield the wiring terminals, so that the protection plate can protect the wiring terminals, which can improve the protection effect of the cover on the contactor, thereby improving the protection level of the contactor.

[0012] In a possible design, the protective door further includes a connecting plate, which is connected between the knock-off plate and the protective plate, and the thickness of the connecting plate is smaller than the thickness of the knock-off plate.

[0013] With the protective structure provided by this embodiment, the connecting plate is connected between the knock-off plate and the protective plate, and the thickness of the connecting plate is less than the thickness of the knock-off plate, so that the connecting plate becomes the weak part of the protective door. When the knock-off plate is knocked, the connection between the knock-off plate and the protective plate is easier to be broken, thereby facilitating the knock-off plate to be knocked off the protective door. In addition, the thinner connecting plate is also conducive to reducing material costs and maintenance costs, and is easy to process and install.

[0014] In a possible design, the protective door is integrally formed with the cover body, and the protective door can rotate relative to the cover body. Alternatively, the protective door is detachably connected to the cover body.

[0015] The protective structure provided by this embodiment can realize the opening and closing of the protective door regardless of whether the protective door is integrally formed with the cover body or detachably connected to the cover body. The protective door and the cover body are formed into a single integral structure using an integrated molding process, which simplifies the processing process and installation steps, not only improving the processing efficiency, but also simplifying the installation efficiency of the protective door. The protective door is detachably connected to the cover body, which is convenient for replacing protective doors of different sizes, making the protective plate suitable for covers of different sizes and shielding the wiring terminals, which can solve the problem that the wiring terminals are still exposed after the protective structure cover is set on the wiring terminals, and can improve the protection level of the protective structure to the contactor.

[0016] In a possible design, the protective door is provided with a buckle, and when the protective door is closed, the buckle is engaged with the cover body.

[0017] Through the protection structure provided by this embodiment, a buckle is set on the protection door, which facilitates the protection plate to be fixed on the cover body after closing, and the protection plate is fixed on the cover body, which can ensure that the protection door and the cover body will not open automatically, and can improve a certain degree of safety. Through the buckle structure, the structure is simple, and it is convenient to open or close the protection door on the cover body as needed, which can improve the installation efficiency.

[0018] In a possible design, the protection structure further includes a support plate, which is connected to a side of the cover body away from the protection door, and the support plate is in contact with a first side of the wiring terminal to support the cover body on the wiring terminal.

[0019] Through the protective structure provided by this embodiment, the support plate is placed on the wiring terminal, and the wiring terminal can play a certain positioning and supporting role on the cover body, reducing the relative movement of the cover body caused by vibration or external force. In addition, the support plate and the cover body, and the support plate and the adjacent support plate can be fixed with the contactor, increasing the contact area between the cover body and the contactor, which is conducive to dispersing the gravity of the cover body and can further improve the installation stability of the cover body on the contactor; at the same time, it can simplify the installation steps of the cover body on the contactor and improve the installation efficiency of the cover body on the contactor.

[0020] In a possible design, the protective structure also includes a hook connected to the support plate, the hook is engaged with the second side of the terminal block to fix the cover to the terminal block, and the second side is opposite to the first side.

[0021] With the protective structure provided by this embodiment, the function of the hook is that after the support plate is placed on the first side of the terminal, the hook can cooperate with the support plate to be fixed on the terminal to complete the clamping connection, thereby further enhancing the installation stability of the cover on the contactor; at the same time, the installation structure is simple to operate and can improve the installation efficiency of the cover on the contactor.

[0022] In a possible design, the protective structure further includes a screw, the cover body includes a first wall, the first wall is provided with a mounting hole, the wiring terminal is provided with a threaded hole, and the end of the screw passes through the mounting hole and is threadedly connected to the threaded hole.

[0023] Through the protective structure provided by this embodiment, the screws are matched and fixed with the threaded holes on the wiring terminals, and the installation of the cover on the contactor is completed, which can further enhance the connection stability between the cover and the contactor, so that the cover is not easy to fall off during use, and the cover protects the wiring terminals. At the same time, the installation holes are opened on the first wall to facilitate the placement of screws during the installation process, which can reduce the problem of screws falling off when installing the screws, and improve the safety and reliability of the reinforced cover.

[0024] In a second aspect, the present application provides a contactor, comprising a wiring terminal and the protective structure of the first aspect, wherein the protective structure cover is disposed on the wiring terminal.

[0025] With the contactor provided in this embodiment, the protective structure cover is arranged on the wiring terminal, which reduces the exposure of the wiring terminal to the outside, reduces the erosion of the wiring terminal by dust and water vapor in the air, increases the safety of the contactor during use, and improves the protection level.

[0026] The beneficial effects of the contactor provided in each possible design of the second aspect can refer to the beneficial effects brought about by each possible implementation manner of the first aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the assembly structure of a protective structure provided in an embodiment of the present application.

[0028] Figure 2 A schematic diagram of a protective structure when a protective door is in a closed state provided in an embodiment of the present application.

[0029] Figure 3 A schematic diagram of a protective structure from a first perspective when a protective door provided in an embodiment of the present application is in an open state.

[0030] Figure 4 A schematic diagram of a protective structure at a second viewing angle when a protective door provided in an embodiment of the present application is in an open state.

[0031] Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0032] Figure 6 A schematic diagram of the assembly structure of another protective structure provided in an embodiment of the present application at a first viewing angle.

[0033] Figure 7 A schematic diagram of the assembly structure of another protective structure provided in an embodiment of the present application at a second viewing angle.

[0034] Description of reference numerals:

[0035] 100, cover body; 110, first wall; 120, mounting hole;

[0036] 200, protective door; 210, knock-off plate; 211, first plate; 212, second plate; 220, protective plate; 230, connecting plate; 240, buckle;

[0037] 300, support plate;

[0038] 400. Hook. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, 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.

[0040] 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; 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.

[0041] 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.

[0042] 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, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the current limiting module of the present application. 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", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] 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.

[0045] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0046] 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 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 a screw, bolt 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 welding, bonding or integral molding to form a connection for connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood in specific circumstances. The "connection" or "connection" of a circuit structure can refer to not only a physical connection, but also an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected, and it can also be the internal connection of two elements; the signal connection can 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 in specific circumstances.

[0047] An embodiment of the present application provides a protection structure and a contactor. The protection structure is applied to a contactor. The contactor includes a wiring terminal connected to an external wiring.

[0048] Figure 1 A schematic diagram of an assembly structure of a protective structure provided in an embodiment of the present application is shown in FIG. Figure 2 A schematic diagram of a protective structure when a protective door 200 provided in an embodiment of the present application is in a closed state, as shown in FIG. Figure 1 and Figure 2 As shown, the protective structure includes a cover body 100 and a protective door 200, and the cover body 100 is covered with a terminal. The protective door 200 is connected to a side of the cover body 100 away from the terminal and opposite to the end of the terminal, and the protective door 200 can be opened or closed. Among them, the protective door 200 includes a knock-off plate 210 and a protective plate 220. After the knock-off plate 210 is knocked off, a wire passing port is formed on the protective door 200, and the wire passing port is used for external wiring to pass through, and the protective plate 220 blocks the terminal.

[0049] The present application may install a protective structure on the first side of the contactor to protect the wiring terminals on the first side. The present application may also install a protective structure on the second side of the contactor to protect the wiring terminals on the second side. The embodiment of the present application may also install a protective structure on the first side of the contactor and another protective structure on the second side of the contactor to protect both the wiring terminals on the first side and the wiring terminals on the second side. The structures of the protective structures installed on both sides of the contactor are similar, and the specific structure of a single protective structure will be described in detail below.

[0050] The interior of the cover body 100 may include a cavity, and the interior of the cover body 100 may also be provided with a partition to divide the interior of the cover body 100 into two cavities, three cavities or four cavities through the partition. The number of cavities separated by the cover body 100 may be the same as the number of terminals, and the cavities and the terminals have a one-to-one correspondence. In this way, one cavity can accommodate one terminal and can protect the accommodated terminal. When the number of cavities separated by the cover body 100 is multiple, since a partition is provided between adjacent cavities, the adjacent cavities can be isolated by the partition, thereby increasing the creepage distance between the terminals in the adjacent cavities, which is convenient for reducing the possibility of electrical connection between adjacent terminals.

[0051] The number of the protection doors 200 may be the same as the number of the cavities, and a protection door 200 may be connected to a side of each cavity away from the connection terminal.

[0052] The cover 100 includes two sides opposite to the ends of the connection terminals, one side of which is close to the ends of the connection terminals and the other side is far from the ends of the connection terminals. The protective door 200 is connected to the side of the cover 100 that is far from the connection terminals and opposite to the ends of the connection terminals, so that the operator can open or close the protective door 200.

[0053] The protective door 200 may be a solid plate-like structure. The protective door 200 may include at least two parts, a knock-off plate 210 and a protective plate 220. The knock-off plate 210 may be knocked off by knocking (for example, knocking with a tool) to detach from the protective door 200, and a wire opening (not shown) is formed on the protective door 200, which is used for passing an external wire through to ensure that the external wire can be smoothly connected to the wiring terminal. The protective plate 220 is a fixed structure on the protective door 200 and will not be knocked off. Therefore, when the cover body 100 is provided on the wiring terminal and the protective door 200 is closed, the protective plate 220 can cover the wiring terminal to protect the wiring terminal.

[0054] The shape of the wire-passing opening is consistent with the shape of the knock-off plate 210. The cross-sectional dimensions of the wire-passing opening may be slightly larger than the cross-sectional dimensions of the external wire, so that the external wire can pass through the wire-passing opening smoothly. Specifically, the shape of the knock-off plate 210 may be circular or polygonal. Thus, the wire-passing opening may also be circular or polygonal. For example, the knock-off plate 210 may be set to be circular, and a circular wire-passing opening is formed after the knock-off plate 210 is knocked off.

[0055] When the external wire is connected to the terminal and the protective structure needs to be installed on the contactor, the protective door 200 can be opened first, and the cover body 100 can be placed on the terminal. Then, the knock-off plate 210 corresponding to the terminal is knocked off to form a wire-passing opening on the protective door 200. Finally, the protective door 200 is closed, and in the process of closing the protective door 200, the end of the external wire away from the terminal passes through the wire-passing opening to complete the installation of the protective structure on the contactor.

[0056] In the embodiment of the present application, a protective door 200 is provided on the cover body 100. After the knock-off plate 210 on the protective door 200 is knocked off, a wire opening can be formed on the protective door 200. The wire opening can avoid external wiring when the protective structure is installed on the contactor. Therefore, the provision of the protective door 200 will not affect the installation of the protective structure on the contactor. After the knock-off plate 210 is knocked off, a protective plate 220 is still left on the protective door 200, and when the protective door 200 is closed, the protective plate 220 can block the wiring terminals, play a protective role on the wiring terminals, reduce the possibility of the wiring terminals being exposed, and thus facilitate improving the protection level of the contactor. In addition, the protective plate 220 blocks the wiring terminals, which can also reduce dust, moisture or other foreign matter from entering the interior of the cover body 100 and causing erosion to the wiring terminals.

[0057] The wiring terminal may include a main contact wiring terminal. For ease of description, the upper wiring of the main contact wiring terminal is referred to as the first terminal, and the lower wiring of the main contact wiring terminal is referred to as the second terminal. The first terminal and the second terminal are located at different positions of the contactor, and both the first terminal and the second terminal may be connected to an external wiring. For ease of description, in a contactor such as Figure 1 and Figure 2 In such a placement, taking the example that the first terminal is located above the second terminal, the first terminal connected to the external wire is referred to as the upper wire, and the second terminal connected to the external wire is referred to as the lower wire.

[0058] Based on this, Figure 3 A schematic diagram of a protective structure at a first viewing angle when a protective door 200 provided in an embodiment of the present application is in an open state, as shown in FIG. Figure 3As shown, the knock-off plate 210 may include a first plate 211 and a second plate 212, wherein the first plate 211 is opposite to the position of the first terminal, and the second plate 212 is opposite to the position of the second terminal. In some possible cases, the first plate 211 or the second plate 212 is knocked off.

[0059] According to the number of phases of the contactor, the number of the first terminal and the second terminal can be one, two, three or four. The number of the first terminal can be the same as the number of the second terminal, or different. The number of the first terminal and the second terminal is not limited in the embodiment of the present application.

[0060] When wiring is required, the first plate 211 can be knocked off, and a first wire opening is formed on the protective door 200 at a position opposite to the first plate 211. The end of the external wire connected to the first terminal can pass through the first wire opening.

[0061] When wiring is required, the second plate 212 can be knocked down to form a second wire opening on the protective door 200 at a position opposite to the second plate 212. The end of the external wire connected to the second terminal can pass through the second wire opening.

[0062] In some other possible situations, both the first plate 211 and the second plate 212 are knocked off.

[0063] When upper wiring and lower wiring are required, the first plate 211 and the second plate 212 can be knocked off, and a first wire passing opening is formed on the protective door 200 at a position opposite to the first plate 211, and a second wire passing opening is formed on the protective door 200 at a position opposite to the second plate 212. The end of the external wire connected to the first terminal can pass through the first wire passing opening, and the end of the external wire connected to the second terminal can pass through the second wire passing opening.

[0064] In this embodiment, there are three knock-off methods: knocking off the first plate 211, knocking off the second plate 212, and knocking off the first plate 211 and the second plate 212 at the same time. These three knock-off methods can be applicable to contactors with main contact terminals, or to contactors with only one type of terminal, or to contactors of multiple different models. In response to different wiring requirements, the first plate 211 and / or the second plate 212 can be knocked off accordingly, thereby improving the universality of the protective structure.

[0065] In a possible implementation, Figure 3 As shown, the protection plate 220 is located on a side of the second plate 212 away from the first plate 211 .

[0066] The first plate 211 can be set on the top of the second plate 212, and the protective plate 220 is located at the bottom of the second plate 212. The cover body 100 is covered on the wiring terminal. The first plate 211 or the second plate 212 can be knocked off, and the protective plate 220 can be closed to allow the external wire to pass through the corresponding wire opening, so that the protective plate 220 is blocked on the wiring terminal.

[0067] In the embodiment of the present application, the protective plate 220 is arranged on the side of the second plate 212 away from the first plate 211. Regardless of whether the first plate 211 or the second plate 212 is knocked off, by closing the protective plate 220, the protective plate 220 can shield the wiring terminals, so that the protective plate 220 protects the wiring terminals, which can improve the protection effect of the cover body 100 on the contactor, thereby improving the protection level of the contactor.

[0068] In a possible implementation, Figure 3 As shown, the protective door 200 may further include a connecting plate 230 , which is connected between the knock-off plate 210 and the protective plate 220 , and the thickness of the connecting plate 230 is less than the thickness of the knock-off plate 210 .

[0069] The connecting plate 230 can be integrally formed between the knock-off plate 210 and the protective plate 220, and the connecting plate 230 can also be connected between the knock-off plate 210 and the protective plate 220 by a detachable connection method such as a bolt connection or a block connection, which is not limited in the embodiment of the present application.

[0070] The thickness of the connecting plate 230 is less than the thickness of the knock-off plate 210. For example, when the thickness of the knock-off plate 210 is 3 mm, the thickness of the connecting plate 230 can be set to 1 mm or 2 mm.

[0071] In the embodiment of the present application, the connection plate 230 is connected between the knock-off plate 210 and the protective plate 220, and the thickness of the connection plate 230 is less than that of the knock-off plate 210, so that the connection plate 230 becomes the weak part of the protective door 200. When the knock-off plate 210 is knocked, the connection between the knock-off plate 210 and the protective plate 220 is easily broken, thereby facilitating the knock-off plate 210 to be knocked off from the protective door 200. In addition, the thinner connection plate 230 is also conducive to reducing material costs and maintenance costs, and is easy to process and install.

[0072] The connecting plate 230 is connected between the knock-off plate 210 and the protective plate 220, that is, the connecting plate 230 can be arranged between the knock-off plate 210 and the protective plate 220. In the case where the knock-off plate 210 includes the first plate 211 and the second plate 212, the connecting plate 230 can also be arranged between the first plate 211 and the second plate 212, and between the second plate 212 and the protective plate 220, and the thickness of the connecting plate 230 can be less than the thickness of the first plate 211 and the thickness of the second plate 212. In this way, the connecting plate 230 can serve as a weak connection between the first plate 211 and the second plate 212, so as to facilitate the knocking off of the first plate 211 or the second plate 212 from the protective door 200.

[0073] Regarding the connection method between the protective door 200 and the cover body 100 , in a first possible implementation manner, the protective door 200 and the cover body 100 may be integrally formed, and the protective door 200 may be rotatable relative to the cover body 100 .

[0074] Exemplarily, when one side of the protective door 200 is connected to one side of the cover body 100, the protective door 200 may be connected via a thin-walled structure. The thickness of the thin-walled structure is less than the thickness of the protective door 200 and the cover body 100, the first side of the thin-walled structure is integrally formed with the protective door 200, and the second side of the thin-walled structure is integrally connected to the cover body 100, thereby, the protective door 200 can move multiple times relative to the cover body 100.

[0075] In a second possible implementation manner, the protective door 200 is detachably connected to the cover body 100 .

[0076] For example, one side of the protective door 200 can be connected to the cover body 100 by means of a hinge, a hinge, a rotating column and a rotating groove, or a sliding groove and a protrusion. In addition, other structural members can be provided between one side of the protective door 200 and the cover body 100 to realize the detachable connection of the protective door 200 on the cover body 100, which will not be described in detail in the embodiments of the present application.

[0077] In this embodiment, whether the protective door 200 is integrally formed with the cover body 100 or detachably connected to the cover body 100, the protective door 200 can be opened and closed. The protective door 200 and the cover body 100 are made into a single integral structure by an integrated molding process, which simplifies the processing process and installation steps, not only improves the processing efficiency, but also simplifies the installation efficiency of the protective door 200. The protective door 200 is detachably connected to the cover body 100, which is convenient for replacing protective doors 200 of different sizes, so that the protective plate 220 is suitable for covers 100 of different sizes and shields the wiring terminals, which can solve the problem that the wiring terminals are still exposed after the protective structure cover is set on the wiring terminals, and can improve the protection level of the protective structure to the contactor.

[0078] Figure 4 A schematic diagram of a protective structure at a second viewing angle when a protective door 200 provided in an embodiment of the present application is in an open state, as shown in FIG. Figure 4 As shown, when one side of the protection door 200 is connected to one side of the cover body 100 , the protection door 200 is provided with a buckle 240 . When the protection door 200 is closed, the buckle 240 is buckled with the cover body 100 .

[0079] The side of the protection door 200 away from the cover body 100 can be buckled with the cover body 100 through a buckle 240.

[0080] For example, in a possible case, the buckle 240 can be integrally connected to the protective door 200, and the cover body 100 can be provided with a buckle groove (not shown) that matches the buckle 240. When the protective door 200 is rotated, the buckle 240 can be inserted into the buckle groove, and the protective door 200 can be fixed on the cover body 100.

[0081] Correspondingly, the buckle 240 can also be fixed to the protective door 200 in a detachable manner, and the specific fixing method will not be repeated here.

[0082] In another possible case, the buckle 240 may be disposed on the cover body 100 , and the connection method between the buckle 240 and the cover body 100 is similar to the connection method between the buckle 240 and the protective door 200 , which will not be described in detail here.

[0083] In addition, the buckle 240 structure can also be provided on the first plate 211 or the second plate 212. When the first plate 211 or the second plate 212 is closed, the buckle 240 can fix the first plate 211 or the second plate 212 on the cover 100, thereby improving the stability of the protective door 200 on the cover 100. The installation of the protective door 200 on the cover 100 enables the protective door 200 to shield the wiring terminals on the cover 100, reducing the possibility of the wiring terminals being exposed, thereby improving the protection level of the contactor.

[0084] In the embodiment of the present application, a buckle 240 is provided on the protective door 200 to facilitate fixing the other side of the protective plate 220 connected to the cover body 100, so as to realize the installation of the protective plate 220 on the cover body 100, and to ensure that the protective door 200 and the cover body 100 will not open automatically, which can improve a certain degree of safety. The buckle 240 structure is simple in structure, and it is convenient to realize the opening or closing of the protective door 200 on the cover body 100 as needed, which can improve the installation efficiency.

[0085] In a possible embodiment, Figure 3 and Figure 4As shown, the protection structure further includes a support plate 300, which is connected to a side of the cover 100 away from the protection door 200, and the support plate 300 contacts the first side of the connection terminal to support the cover 100 on the connection terminal.

[0086] The material of the support plate 300 can be set not only to plastic materials, such as polycarbonate, polypropylene, nylon, etc., but also to epoxy resin, ceramic material thermosetting plastics, etc. These materials have excellent heat resistance and chemical corrosion resistance, and can also maintain insulation performance under high temperature conditions.

[0087] The number of the support plates 300 can be the same as the number of the cavities separated by the cover body 100. The support plates 300 and the cavities separated by the cover body 100, as well as the support plates 300 and the connection terminals, all have a one-to-one correspondence. Each support plate 300 can be supported on a corresponding connection terminal, so that the cover body 100 is easily supported on the connection terminal.

[0088] When there are multiple support plates 300, receiving grooves can be formed between the support plates 300 and the cover body 100 and between adjacent support plates 300, and convex ridges are provided on the sides where the contactor contacts the support plates 300. Since receiving grooves are provided between the support plates 300 and the cover body 100 and between adjacent support plates 300, the convex ridges correspond to the receiving grooves, and the support plates 300 can be fixed on the contactor through the cooperation of the convex ridges and the receiving grooves, thereby increasing the stability of the cover body 100 on the contactor.

[0089] The support plate 300 can be integrally connected to the cover body 100, or can be detachably connected to the cover body 100, and the support plate 300 and the protective door 200 are located on opposite sides of the cover body 100, wherein the protective door 200 is arranged on the side of the cover body 100 away from the wiring terminals, and the support plate 300 is arranged on the side of the cover body 100 close to the wiring terminals.

[0090] In the embodiment of the present application, the support plate 300 is placed on the wiring terminal, and the wiring terminal can play a certain positioning and supporting role for the cover body 100, reducing the relative movement of the cover body 100 caused by vibration or external force. In addition, the support plate 300 and the cover body 100, and the support plate 300 and the adjacent support plate 300 can be fixed with the contactor, which increases the contact area between the cover body 100 and the contactor, is conducive to dispersing the gravity of the cover body 100, and can further improve the installation stability of the cover body 100 on the contactor; at the same time, it can simplify the installation steps of the cover body 100 on the contactor and improve the installation efficiency of the cover body 100 on the contactor.

[0091] In one embodiment, Figure 5 for Figure 4 The enlarged view of the middle A part, such as Figure 5As shown, the protection structure also includes a hook 400, which is connected to the support plate 300 and is engaged with the second side of the terminal to fix the cover 100 to the terminal, and the second side is opposite to the first side.

[0092] The hook 400 is arranged on the support plate 300. The hook 400 may be a part of the support plate 300 or may be independent of the support plate 300. The hook 400 and the support plate 300 may be integrally connected, for example, formed by an integral molding process. It may also be detachably connected, such as being fixed to the support plate 300 by riveting or bolting, and the hook 400 has sufficient elasticity to facilitate the second side of the terminal to pass through, and the terminal is clamped between the support plate 300 and the hook 400 to complete the installation.

[0093] Specifically, a non-slip pad or a soft cushion can be added to the contact portion between the support plate 300 and the first side of the contact terminal, so that the clamping portion of the hook 400 is designed to adapt to the shape of the second side of the terminal, ensuring the firmness of the clamping portion.

[0094] During installation, adjust the cover body 100 so that the support plate 300 faces the terminal, press down the cover body 100 so that the bottom of the hook 400 contacts the first side of the terminal and continue to press down. The hook 400 will deform to a certain extent after encountering the first side of the terminal. When the support plate 300 is placed on the first side of the terminal, the hook 400 restores its deformation, thereby achieving the installation of the cover body 100 on the terminal.

[0095] In the embodiment of the present application, the function of the hook 400 is that after the support plate 300 is placed on the first side of the terminal, the hook 400 can cooperate with the support plate 300 to be fixed on the terminal to complete the clamping connection, thereby further enhancing the installation stability of the cover body 100 on the contactor; at the same time, the installation structure is simple to operate and can improve the installation efficiency of the cover body 100 on the contactor.

[0096] Figure 6 A schematic diagram of the assembly structure of another protective structure provided in an embodiment of the present application at a first viewing angle, Figure 7 A schematic diagram of the assembly structure of another protective structure provided in an embodiment of the present application at a second viewing angle is shown in FIG. Figure 6 and Figure 7 As shown, the protective structure also includes a screw (not shown), the cover body 100 includes a first wall 110, the first wall 110 is provided with a mounting hole 120, the terminal is provided with a threaded hole (not shown), the end of the screw passes through the mounting hole 120 and is threadedly connected with the threaded hole.

[0097] The first wall 110 can be configured as a plate or several plates that can be assembled. The first wall 110 is located on the top of the cover body 100. The first wall 110 and the cover body 100 can be integrally connected or detachably connected.

[0098] A protective block (not shown) may be provided on the top of the first wall 110, and the number of the protective blocks is not limited herein. The protective block may be detachably fixed to the first wall 110, or may be integrally connected. The multiple protective blocks may be arranged in parallel on the first wall 110, or may be cross-distributed on the first wall 110. The distribution of the protective blocks in the embodiment of the present application is not limited. A protective block is provided on the top of the first wall 110, and the protective block can enhance the anti-collision strength of the cover body 100, thereby improving the protection level of the cover body 100.

[0099] The mounting hole 120 can be set to a mounting hole 120 of different diameters and depths to accommodate screws of different sizes. The mounting hole 120 can be set to a circular mounting hole 120, or can be set to a hole of different shapes such as a square, an ellipse, or a slot.

[0100] The mounting hole 120 can be directly opened on the first wall 110, and can be set as a through hole or a countersunk hole. In addition, a mounting column (not shown) can be set on the first wall 110, the bottom of the mounting column can be placed on the first side of the terminal block, and the mounting hole 120 can also be opened on the mounting column, and the mounting hole 120 passes through the mounting column.

[0101] The threaded hole is consistent with the size of the end of the screw. After the screw passes through the mounting hole 120, it is installed in cooperation with the threaded hole, so that the cover body 100 can be fixed on the wiring terminal, and the installation stability of the cover body 100 on the wiring terminal can be improved.

[0102] The screw can be made of different materials, such as steel, stainless steel, aluminum alloy, plastic screw, etc. The material of the screw in the embodiment of the present application is not limited. The head shape of the screw can be set to a common cross-stitch screw, and can also be designed to have a head of different shapes such as an I-shaped head and a hexagonal head.

[0103] One end of the screw passes through the mounting hole 120 and is threadedly connected with the threaded hole to fix the cover 100 on the contactor. The size and shape of the screw head are designed to withstand sufficient torque to prevent the screw from being damaged during the tightening process.

[0104] In the embodiment of the present application, the screws are fixed in cooperation with the threaded holes on the wiring terminals to complete the installation of the cover 100 on the contactor, which can further enhance the connection stability between the cover 100 and the contactor, making it difficult for the cover 100 to fall off during use, thereby allowing the cover 100 to protect the wiring terminals. At the same time, the installation holes 120 are provided on the first wall 110 to facilitate the placement of screws during the installation process, which can reduce the problem of screws falling off during the installation of the screws, thereby improving the safety and reliability of the reinforced cover 100.

[0105] The present application also provides a contactor, such as Figure 7 As shown, the contactor may include a wiring terminal and the protective structure in the aforementioned embodiment, and the protective structure cover is arranged on the wiring terminal.

[0106] The connection terminal can be made of metal and has good electrical conductivity.

[0107] The shape of the protective structure can be designed to cover the wiring terminal, and the protective structure can shield the wiring terminal to ensure effective protection and isolation.

[0108] In the embodiment of the present application, the protective structure cover is arranged on the wiring terminal to reduce the exposure of the wiring terminal to the outside, reduce the erosion of the wiring terminal by dust, moisture, etc. in the air, increase the safety of the contactor during use, and improve the protection level.

[0109] Finally, it should be noted that the above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A protective structure, applied to a contactor, the contactor comprising a wiring terminal, the wiring terminal being connected to an external wire, characterized in that: The protective structure includes a cover body and a protective door; The cover body is disposed on the wiring terminal; The protective door is connected to a side of the cover body away from the wiring terminal and opposite to the end of the wiring terminal, and the protective door can be opened or closed; Wherein, the protective door comprises a knock-off plate and a protective plate, and after the knock-off plate is knocked off, a wire opening is formed on the protective door, and the wire opening is used for the external wire to pass through; The protection plate covers the wiring terminal.

2. The protective structure according to claim 1, characterized in that: The wiring terminal includes a first terminal and a second terminal at different positions, and the knock-off plate includes a first plate and a second plate, the first plate is opposite to the position of the first terminal, and the second plate is opposite to the position of the second terminal; The first plate and / or the second plate are knocked off.

3. The protective structure according to claim 2, characterized in that: The protection plate is located at a side of the second plate away from the first plate.

4. The protective structure according to any one of claims 1 to 3, characterized in that: The protective door also includes a connecting plate, which is connected between the knock-off plate and the protective plate, and the thickness of the connecting plate is smaller than the thickness of the knock-off plate.

5. The protective structure according to any one of claims 1 to 3, characterized in that: The protective door is integrally formed with the cover body, and the protective door can rotate relative to the cover body; or, The protective door is detachably connected to the cover body.

6. The protective structure according to any one of claims 1 to 3, characterized in that: The protective door is provided with a buckle, and when the protective door is closed, the buckle is buckled with the cover body.

7. The protective structure according to claim 1, characterized in that: The protection structure further includes a support plate connected to a side of the cover body away from the protection door, and the support plate contacts a first side of the connection terminal to support the cover body on the connection terminal.

8. The protective structure according to claim 7, characterized in that: The protection structure also includes a hook, which is connected to the support plate and is engaged with a second side of the wiring terminal to fix the cover to the wiring terminal, and the second side is opposite to the first side.

9. The protective structure according to claim 1, characterized in that: The protective structure also includes screws; The cover body comprises a first wall, the first wall is provided with a mounting hole, the wiring terminal is provided with a threaded hole, and the end of the screw passes through the mounting hole and is threadedly connected with the threaded hole.

10. A contactor, characterized in that: It comprises a wiring terminal and the protective structure according to any one of claims 1 to 9, wherein the protective structure cover is arranged on the wiring terminal.

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