Surge protector and contactor with same

Abstract

The utility model provides a surge protector and a contactor with the same, and relates to the technical field of electrical devices. A surge protector comprises a surge main body, surge side lugs and surge pins, and the surge main body is provided with a lightning protection module. The surge side lugs are arranged on two opposite sides of the surge main body, one side, far away from the surge main body, of each surge side lug is provided with a buckle, and the buckles are used for being clamped with clamping grooves in the contactor; the surge pin is arranged on a first side surface of the surge main body, and the first side surface is a surface adjacent to the surface where the surge side lug is located; when the buckle is connected with the clamping groove, the surge pin abuts against a lug plate of the contactor, and the direction in which the surge pin abuts against the lug plate is consistent with the direction in which the surge protector is installed in the contactor. According to the surge protector and the contactor with the surge protector provided by the invention, the problem of poor contact with the contactor when the surge protector is repeatedly used can be solved, and the reliability of the surge protector in the repeated use process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical devices, and in particular, to a surge protector and a contactor having the surge protector. Background Art

[0002] A surge protector, also called a lightning arrester, is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. When a spike current or voltage suddenly occurs in an electrical circuit or a communication line due to external interference, the surge protector can conduct and shunt in an extremely short time, thereby avoiding damage to other devices in the circuit caused by the surge.

[0003] A contactor is a commonly used switching element in a circuit, and it is usually installed in the circuit in cooperation with a surge protector. In the related art, the installation process of the surge protector and the contactor is mostly cumbersome and inconvenient. During the disassembly process, the surge pins of the surge protector will be squeezed and deformed by the upper housing of the contactor, resulting in unreliable contact between the surge pins and the contactor wiring terminals when the surge protector is used again, affecting the service life of the contactor and the surge protector after installation. Utility Model Content

[0004] The present application provides a surge protector and a contactor having the surge protector to solve the problem of poor contact between the surge protector and the contactor during repeated use, and improve the reliability of the surge protector during multiple uses.

[0005] In a first aspect, the present application provides a surge protector, including a surge main body, surge side ears, and surge pins. The surge main body is provided with a lightning protection module; the surge side ears are arranged on opposite sides of the surge main body, and a buckle is arranged on the side of the surge side ear away from the surge main body, and the buckle is used for clamping with a card slot on the contactor; the surge pins are arranged on a first side surface of the surge main body, and the first side surface is a surface adjacent to the surface where the surge side ear is located; when the buckle is connected to the card slot, the surge pins are in contact with the wiring terminals of the contactor, and the direction in which the surge pins are in contact with the wiring terminals is the same as the direction in which the surge protector is inserted into the contactor.

[0006] Through the surge protector provided by the first aspect, when the surge protector is installed in the contactor, the buckle on the surge side ear is snapped into the card slot, and the surge pin abuts against the terminal of the contactor; through the snap connection between the buckle and the card slot, the connection between the surge protector and the contactor can be realized, and the surge pin is kept in contact with the terminal. When disassembling the surge protector, the connection between the buckle and the card slot can be disengaged, and then the surge protector can be taken out in the opposite direction of the installation direction. During this process, the surge pin can be directly separated from the terminal, and in the taking-out direction, the surge pin will not be blocked. Therefore, the surge pin will not be deformed, so that during the repeated use of the surge protector, the pins of the surge protector can continue to maintain good contact with the terminals on other contactors, making the surge protector reliable in use and having a longer service life.

[0007] In a possible design, the surge pin includes a connecting section and an abutting section. The abutting section forms an angle with the connecting section. The connecting section is connected to the surge body, and the abutting section gradually moves away from the first side surface from the end close to the connecting section to the end far from the connecting section. When the surge protector is installed in the contactor, the abutting section is elastically deformed in the direction close to the first side surface under the extrusion of the terminal.

[0008] Through the above solution, when the surge protector is installed on the contactor, the electrical connection between the surge protector and the contactor can be realized through the terminal, the abutting section and the connecting section. By setting the surge pin to the above structure, the deformation of the abutting section can be realized not only through the deformation of the connection position between the abutting section and the connecting section, but also through the deformation of the abutting section itself, avoiding the stress concentration of the surge pin. Through the elastic deformation of the surge pin, a pre-pressure is generated between the surge pin and the terminal, so that the contact is tighter and more stable, and it is not easy to become loose. In addition, the end of the surge pin connected to the surge body and the end abutting against the terminal are located in different parts of the surge pin, and the two positions are far apart and not easy to affect each other.

[0009] In a possible design, the surge pin further includes a tilting section. The tilting section is connected to the end of the abutting section far from the connecting section, and the tilting section gradually approaches the first side surface from the end close to the abutting section to the end far from the abutting section.

[0010] Through the above solution, the part of the surge pin farthest from the first side surface is the connection part between the tilting section and the abutting section. This position is not the end of the surge pin. Therefore, it is not easy to get stuck with the terminal, which is beneficial to the smooth installation between the surge protector and the contactor.

[0011] In a possible design, a smooth chamfer is provided at the connection between the tilting section and the abutting section.

[0012] Through the above solution, when the surge protector and the contactor are assembled, the surge pin contacts the wiring piece through the smooth chamfer between the raised section and the abutting section, further reducing the probability of jamming between the surge pin and the wiring piece.

[0013] In a possible design, an accommodating gap is provided between the surge side ear and the surge body, and the accommodating gap is used to allow the surge side ear to deform toward the surge body.

[0014] Through the above solution, when the surge protector is assembled to the contactor, the contactor can squeeze the surge side ear, causing the surge side ear to deform in the direction close to the surge body, thereby facilitating the buckle to be installed in the slot. After the buckle is installed in the slot, the surge side ear is subjected to less squeezing force from the contactor, and the surge side ear can restore its original shape or partially restore its original shape, so that the buckle and the slot maintain a tight engagement. In the above arrangement, the presence of the accommodation gap allows the buckle to be engaged with the slot and the buckle by deforming the surge side ear without deforming the contactor, thereby achieving connection between the surge protector and the contactor, thereby increasing the adaptability of the surge protector.

[0015] In one possible design, the end of the surge side ear close to the first side surface is connected to the surge body, and the end away from the first side surface is disconnected from the surge body and has a deformation gap, or the end of the surge side ear away from the first side surface is connected to the surge body, and the end close to the first side surface is disconnected from the surge body and has a deformation gap.

[0016] Through the above solution, the connection between the surge ear and the surge body can be achieved by connecting one end of the surge ear to the surge body. When the surge ear is squeezed by the contactor, its other end is disconnected from the surge body and there is a deformation gap. Therefore, the surge ear as a whole can move closer to the surge body, allowing the surge protector to be smoothly installed in the contactor. It can be seen that the connection structure between the surge ear and the surge body above allows the surge ear to maintain connection with the surge body while facilitating the deformation of the surge ear, thereby facilitating the assembly between the surge protector and the contactor.

[0017] In a possible design, a guide surface is provided at one end of the surge side ear close to the first side surface. The guide surface gradually moves away from the surge body in a direction away from the first side surface to guide the surge side ear to gradually deform.

[0018] With the above solution, because the guide surface is close to the first side surface, when the surge protector is installed into the contactor, the contactor first contacts the guide surface. The contact force after contact gradually increases as the surge protector is installed, thereby gradually compressing the surge side ear, causing the surge side ear to gradually deform, which facilitates the smooth installation of the surge protector into the contactor. Therefore, the guide surface can play a guiding role during the assembly process of the surge protector and the contactor.

[0019] In a possible design, the side of the surge body where the surge lug is located is the second side. When not under force, the angle between the part of the surge lug with the buckle and the second side is greater than 0 degrees, and the opening of the angle faces away from the first side. When the surge protector is inserted into the contactor and is squeezed by the contactor, the surge lug deforms towards the second side, reducing the angle.

[0020] Through the above solution, since the angle between the surge lug and the second side is greater than 0 degrees when not under force, and the angle decreases when the surge protector is inserted into the contactor and is squeezed by the contactor, when the surge protector is inserted into the contactor, there is a certain pre-pressure between the surge lug and the contactor. This pre-pressure makes the surge lug tend to deform and bend away from the second side. Under the action of the pre-pressure, the surge lug can be in close contact with the contactor, so that the buckle and the card slot are more firmly engaged, and the surge protector is not easily separated from the contactor.

[0021] In a second aspect, the present application provides a contactor with a surge protector, including a contactor and the surge protector in any of the above embodiments; the contactor is provided with a mounting groove, the mounting groove has a first groove wall, a second groove wall and a third groove wall, the first groove wall and the second groove wall are arranged opposite to each other, and card slots are provided on both the first groove wall and the second groove wall; the first groove wall and the second groove wall are both adjacent to the third groove wall, and a wiring piece is provided on the third groove wall; the surge protector is arranged in the mounting groove, and the buckle on the surge lug is engaged with the card slot, and the surge pin is in contact with the wiring piece.

[0022] Through the above solution, when the surge protector is installed in the mounting groove on the contactor, through the cooperation of the buckle and the card slot, the surge protector and the contactor are kept in a connected state, and the surge pin and the wiring piece are kept in a contacting state. When disassembling the surge protector, the buckle and the card slot can be disconnected, and then the surge protector can be taken out in the direction away from the third groove wall. During this process, the surge pin can be directly separated from the wiring piece, and in the taking-out direction, the surge pin will not be blocked, so the surge pin will not be deformed. Therefore, during the repeated use of the surge protector, the pins of the surge protector can continue to maintain good contact with the wiring pieces on other contactors, making the surge protector reliable in use and having a longer service life.

[0023] In a possible design, the card slot on the first groove wall penetrates the first groove wall, and the card slot on the second groove wall penetrates the second groove wall.

[0024] Through the above solution, from the side where the first slot wall and the second slot wall are away from each other, by squeezing the buckle through the card slot, the surge side ear can be deformed in the direction close to the surge body, so as to facilitate removing the surge protector from the installation slot. Therefore, the above solution facilitates removing the surge protector from the contactor for repeated use of the surge protector.

[0025] For other possible designs of the contactor with a surge protector provided in the second aspect and their beneficial effects, reference can be made to the beneficial effects brought by the possible embodiments in the first aspect above, which will not be elaborated here. Description of the Drawings

[0026] Figure 1 It is a schematic cross-sectional structure diagram of a contactor with a surge protector provided by an embodiment of the present application.

[0027] Figure 2 It is Figure 1 An enlarged view of part A in

[0028] Figure 3 It is an exploded schematic diagram of a contactor with a surge protector provided by an embodiment of the present application.

[0029] Figure 4 It is a schematic structural diagram of a surge protector provided by an embodiment of the present application from one perspective.

[0030] Figure 5 It is a schematic structural diagram of a surge protector provided by an embodiment of the present application from another perspective.

[0031] Description of the reference numerals: 100, surge protector; 110, surge body; 111, first side; 112, second side; 120, surge side ear; 121, guiding surface; 130, buckle; 140, surge pin; 141, connecting section; 142, abutting section; 143, tilting section; 150, accommodating gap; 160, deformation gap; 200, contactor; 210, card slot; 220, wiring piece; 230, installation slot; 231, first slot wall; 232, second slot wall; 233, third slot wall; 300, top cover. Detailed Embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this 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 description and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusion.

[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The phrase "embodiment" appearing in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0035] The directional terms appearing in the following description are all the directions shown in the figures and do not limit the specific structures of the surge protector and the contactor having the surge protector of this application. For example, in the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this 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 thus should not be construed as a limitation of this application.

[0036] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects and are not used to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0037] In the description of this application, unless otherwise specified, "a plurality of" means two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).

[0038] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, the "connection" or "linkage" of mechanical structures may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection by screws, bolts, or other spacer parts; a physical connection may also be a detachable connection, such as a snap connection or a clamping connection; a physical connection may also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. The "connection" or "linkage" of circuit structures may refer to not only a physical connection but also an electrical connection or a signal connection. For example, it may be a direct connection, that is, a physical connection, or it may be indirectly connected through at least one intermediate element, as long as the circuit is connected. It may also be the connection inside two components; in addition to the signal connection through the circuit, the signal connection may also refer to the signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] Contactors are usually installed in a circuit in cooperation with surge protectors. When leaving the factory, the surge protectors and contactors are sold separately and assembled when needed by the user. Moreover, the surge protectors can be installed on different contactors according to needs to protect different circuits.

[0040] However, during the repeated use of existing surge protectors, the contact with the contactor is sometimes unstable, resulting in the inability to reliably protect the circuit when a large current suddenly appears.

[0041] The inventor has found through research that the surge pins of the repeatedly used surge protectors are usually deformed. The reason for this deformation is that the surge pins of the surge protectors are generally clamped between two terminal blocks. Therefore, when the surge protector is installed in the contactor, it is inserted horizontally or rotated for installation. The disassembly process of the surge protector is opposite to the installation process. During the above installation and disassembly processes, the surge pins will be deformed or damaged to varying degrees. As a result, when the surge protector is installed in another contactor, its surge pins often cannot make good contact with the terminal blocks of the contactor, and the circuit cannot be reliably protected.

[0042] In view of the above reasons, the present application provides a surge protector and a contactor having the surge protector to solve the problem of poor contact between the surge protector and the contactor during repeated use, and improve the reliability of the surge protector during multiple uses.

[0043] Figure 1A schematic cross-sectional view of a contactor with a surge protector provided in an embodiment of the present application. Figure 2 for Figure 1 Enlarged view of point A in the middle. Figure 3 An exploded diagram of a contactor with a surge protector provided in an embodiment of the present application.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a surge protector 100, which includes a surge body 110, a surge side ear 120 and a surge pin 140. The surge body 110 is provided with a lightning protection module; the surge side ear 120 is provided on opposite sides of the surge body 110, and a buckle 130 is provided on the side of the surge side ear 120 away from the surge body 110, and the buckle 130 is used to snap into the slot 210 on the contactor 200; the surge pin 140 is provided on the first side 111 of the surge body 110, and the first side 111 is a surface adjacent to the surface where the surge side ear 120 is located; when the buckle 130 is connected to the slot 210, the surge pin 140 abuts against the wiring piece 220 of the contactor 200, and the direction in which the surge pin 140 abuts against the wiring piece 220 is consistent with the direction in which the surge protector 100 is installed into the contactor 200.

[0045] Figure 1-Figure 3 In the figure, the direction in which the surge pin 140 abuts against the terminal piece 220 and the direction in which the surge protector 100 is installed into the contactor 200 are both downward along the paper surface.

[0046] The surge protector 100 comprises a main structural unit 110, which is composed of a housing and electronic components such as a lightning protection module encapsulated in the housing.

[0047] The lightning protection module is the main functional component of the surge protector 100. When a spike current or voltage suddenly occurs in the electrical circuit or communication line where the contactor 200 is located due to external interference or other factors (for example, lightning), the lightning protection module can limit the instantaneous overvoltage entering the power line or signal transmission line to the voltage range that the equipment or system can withstand in a very short time, or discharge the spike current into the ground, thereby preventing the surge from damaging other equipment in the circuit.

[0048] The surge pin 140 is a component used to make a direct electrical connection with the contactor 200. By contacting the terminal 220 on the contactor 200 through the surge pin 140, the circuit of the contactor 200 can be connected to the lightning protection module, so that when a surge occurs, the current is led to the lightning protection module through the surge pin 140.

[0049] The surge side ear 120 is a plate-shaped component arranged on the side of the surge body 110. Its main function is to set the buckle 130. When the surge protector 100 is inserted into the contactor 200, the buckle 130 on the surge side ear 120 is snapped into the card slot 210, and the surge pin 140 abuts against the terminal piece 220 of the contactor 200. Through the snap connection between the buckle 130 and the card slot 210, the connection between the surge protector 100 and the contactor 200 can be realized, and the surge pin 140 is kept in the abutting state with the terminal piece 220.

[0050] When disassembling the surge protector 100, the connection between the buckle 130 and the card slot 210 can be disengaged, and then the surge protector 100 can be taken out in the opposite direction of the insertion direction. Since the surge pin 140 in this application abuts against the terminal piece 220 of the contactor 200, and the direction in which the surge pin 140 abuts against the terminal piece 220 is the same as the direction in which the surge protector 100 is inserted into the contactor 200, therefore, during the process of disassembling the surge protector 100, the surge pin 140 can be directly separated from the terminal piece 220, and in the taking-out direction, the surge pin 140 will not be blocked. Therefore, the surge pin 140 will not be deformed or damaged. Thus, during the repeated use of the surge protector 100, the pins of the surge protector 100 can continue to maintain a good abutting with the terminal pieces 220 on other contactors 200, making the surge protector 100 reliable in use and having a longer service life.

[0051] In one embodiment, the surge pin 140 is an elastic component, and when abutting against the terminal piece 220, the surge pin 140 has elastic deformation.

[0052] Setting the surge pin 140 as an elastic component enables the surge pin 140 and the terminal piece 220 to have a certain pre-pressure through elastic deformation in the abutting state, so as to be able to maintain a stable electrical connection with the terminal piece 220.

[0053] Exemplarily, the surge pin 140 can be a spring or a spring sheet. When the surge pin 140 is a spring sheet, when being abutted by the terminal piece 220, the surge pin 140 can be bent, so as to abut more closely against the terminal piece 220.

[0054] Figure 4 It is a schematic structural diagram of a surge protector provided by an embodiment of this application from one perspective.

[0055] As Figure 4As shown, in a possible design, the surge pin 140 includes a connecting section 141 and an abutting section 142. The abutting section 142 and the connecting section 141 form an angle with each other. The connecting section 141 is connected to the surge body 110. The abutting section 142 gradually moves away from the first side surface 111 from an end close to the connecting section 141 to an end away from the connecting section 141. When the surge protector 100 is installed in the contactor 200, the abutting section 142 is squeezed by the terminal piece 220 and elastically deforms toward the first side surface 111.

[0056] The connecting section 141 is connected to the surge body 110 , especially to the lightning protection module, thereby realizing electrical connection between the surge pin 140 and the lightning protection module. The abutting section 142 abuts against the terminal piece 220 , thereby realizing electrical connection between the surge pin 140 and the contactor 200 .

[0057] The surge pin 140 is set to the above-mentioned structure, and the abutting section 142 and the connecting section 141 form an angle with each other. The deformation of the abutting section 142 can be achieved not only by the deformation of the connection position between the abutting section 142 and the connecting section 141, that is, changing the angle between the abutting section 142 and the connecting section 141, but also by the deformation of the abutting section 142 itself, that is, the bending deformation of the abutting section 142 itself, thereby avoiding stress concentration on the surge pin 140.

[0058] The elastic deformation of the surge pin 140 creates a preload between the surge pin 140 and the terminal lug 220, creating a tighter and more stable connection that is less likely to come loose. Furthermore, the end of the surge pin 140 that connects to the surge body 110 and the end that abuts the terminal lug 220 are located at different locations on the surge pin 140, making them less likely to interfere with each other.

[0059] From the above structure of the surge pin 140 , it can be seen that the portion of the surge pin 140 that first contacts the abutting piece is the portion of the abutting section 142 away from the connecting section 141 , because this portion is farthest from the first side surface 111 .

[0060] However, during the process of installing the surge protector 100 into the contactor 200, the surge pin 140 is in a state of continuous deformation from the moment the surge pin 140 contacts the terminal lug 220. As a result, the end of the surge pin 140 moves on the surface of the terminal lug 220. Once the end of the surge pin 140 abuts against other sharp parts of the contactor 200, it may cause a jam between the surge protector 100 and the contactor 200, and may even damage the surge pin 140.

[0061] In view of this, please continue to refer to Figure 4In one possible design, the surge pin 140 further includes a tilted section 143, which is connected to the end of the abutting section 142 away from the connecting section 141, and the tilted section 143 gradually approaches the first side surface 111 from one end close to the abutting section 142 to the end away from the abutting section 142.

[0062] Through the above solution, the portion of the surge pin 140 that is farthest from the first side surface 111 is the portion where the raised section 143 and the abutting section 142 are connected. This position is not the end of the surge pin 140. Therefore, it is not easy for the surge pin 140 to get stuck with the terminal piece 220, which is conducive to the smooth installation of the surge protector 100 and the contactor 200.

[0063] Please continue to refer to Figure 4 In a possible design, a smooth chamfer is provided at the connection between the raised section 143 and the abutting section 142 .

[0064] Through the above solution, when the surge protector 100 and the contactor 200 are assembled, the surge pin 140 contacts the terminal piece 220 through the smooth chamfer between the raised section 143 and the abutting section 142, further reducing the probability of a jamming phenomenon between the surge pin 140 and the terminal piece 220.

[0065] It is understandable that the smooth chamfer between the raised section 143 and the abutting section 142 can also increase the contact area between the surge pin 140 and the terminal piece 220 , thereby reducing the contact resistance between the surge protector 100 and the contactor 200 .

[0066] In some embodiments, the connecting section 141 , the abutting section 142 , and the tilting section 143 are formed by bending the same metal spring, thereby reducing the difficulty of manufacturing the surge pin 140 .

[0067] The following further describes possible configurations of the surge lug 120 .

[0068] Figure 5 A schematic structural diagram of a surge protector provided in an embodiment of the present application from another perspective.

[0069] like Figure 5 As shown, in a possible design, an accommodating gap 150 is provided between the surge side ear 120 and the surge body 110 . The accommodating gap 150 is used to allow the surge side ear 120 to deform toward the surge body 110 .

[0070] It is understandable that the accommodating gap 150 needs to be greater than or equal to the protruding height of the buckle 130 on the surge side ear 120 , so that the surge protector 100 can be smoothly installed into the contactor 200 through the deformation of the surge side ear 120 .

[0071] When the surge protector 100 is assembled to the contactor 200, the contactor 200 can squeeze the surge side ear 120, causing the surge side ear 120 to deform in the direction closer to the surge body 110, which is beneficial for the snap 130 to be inserted into the card slot 210. After the snap 130 is inserted into the card slot 210, the surge side ear 120 is subjected to a smaller squeezing force from the contactor 200, and the surge side ear 120 can return to its original shape or partially return to its original shape to keep the snap 130 and the card slot 210 tightly engaged.

[0072] In the above arrangement, the existence of the accommodation gap 150 enables the connection between the card slot 210 and the snap 130 to be achieved through the deformation of the surge side ear 120 without the contactor 200 deforming, thereby realizing the connection between the surge protector 100 and the contactor 200 and increasing the adaptability of the surge protector 100.

[0073] Please continue to refer to Figure 5 , in a possible design, one end of the surge side ear 120 close to the first side 111 is connected to the surge body 110, and the other end far from the first side 111 is disconnected from the surge body 110 and has a deformation gap 160. Alternatively, the other end of the surge side ear 120 far from the first side 111 is connected to the surge body 110, and the end close to the first side 111 is disconnected from the surge body 110 and has a deformation gap 160. Figure 5 Only the case where one end of the surge side ear 120 close to the first side 111 is connected to the surge body 110 and the other end far from the first side 111 is disconnected from the surge body 110 and has a deformation gap 160 is taken as an example for illustration in

[0074] It should be noted that the existence of the above accommodation gap 150 enables the surge side ear 120 to achieve the engagement between the snap 130 and the card slot 210 through local deformation, while the existence of the deformation gap 160 in this embodiment enables the surge side ear 120 to deform as a whole around the end connected to the surge body 110, realizing the assembly of the surge protector 100 and the contactor 200.

[0075] By connecting one end of the surge side ear 120 to the surge body 110, the connection between the surge side ear 120 and the surge body 110 can be achieved. When the surge side ear 120 is squeezed by the contactor 200, since the other end is disconnected from the surge body 110 and has a deformation gap 160, the whole surge side ear 120 can move closer to the surge body 110, enabling the surge protector 100 to be smoothly inserted into the contactor 200. It can be seen that through the above connection structure between the surge side ear 120 and the surge body 110, while keeping the connection between the surge side ear 120 and the surge body 110, it is beneficial for the deformation of the surge side ear 120, thus facilitating the assembly between the surge protector 100 and the contactor 200.

[0076] Optionally, after the surge protector 100 is inserted into the contactor 200, one end of the surge lug 120 that is disconnected from the surge body 110 can abut against the surge body 110 under the extrusion of the contactor 200. When the surge protector 100 and the contactor 200 are in the assembled state, the surge lug 120 is not easily deformed toward the side close to the surge body 110, so that the buckle 130 and the card slot 210 are not easily separated and are stably maintained in the clamped state.

[0077] Please refer to Figure 4 and Figure 5 , optionally, the cross-section of the buckle 130 can be a right triangle or a right trapezoid, and one hypotenuse of the right triangle or the right trapezoid is located close to the first side 111, and one right side is located away from the first side 111. The aforementioned hypotenuse is used to gradually deform the surge lug 120 under the extrusion of the contactor 200 when the surge protector 100 is inserted into the contactor 200, and the aforementioned right side is used to abut against the edge of the card slot 210 to limit the surge protector 100 after the surge protector 100 is installed in place, preventing the surge protector 100 from detaching from the contactor 200.

[0078] Please continue to refer to Figure 5 , in a possible design, the side of the surge body 110 where the surge lug 120 is located is the second side 112. When not stressed, the angle between the part of the surge lug 120 provided with the buckle 130 and the second side 112 is greater than 0 degrees, and the opening of the angle faces away from the first side 111; when the surge protector 100 is inserted into the contactor 200 and is extruded by the contactor 200, the surge lug 120 deforms toward the second side 112, causing the angle to decrease.

[0079] Optionally, the angle between the surge lug 120 and the second side 112 is 1-3 degrees, which is conducive to the deformation of the surge lug 120 toward the second side 112.

[0080] Through the above solution, since the angle between the surge lug 120 and the second side 112 is greater than 0 degrees when not stressed, and the angle decreases when the surge protector 100 is inserted into the contactor 200 and is extruded by the contactor 200, therefore, when the surge protector 100 is inserted into the contactor 200, there is a certain pre-pressure between the surge lug 120 and the contactor 200. This pre-pressure causes the surge lug 120 to have a deformation tendency to bend away from the second side 112. Under the action of the pre-pressure, the surge lug 120 can closely abut against the contactor 200, so that the buckle 130 and the card slot 210 are clamped more firmly, and the surge protector 100 is not easily separated from the contactor 200.

[0081] In a possible design, a guiding surface 121 is provided at one end of the surge ear 120 close to the first side surface 111. Along the direction away from the first side surface 111, the guiding surface 121 gradually moves away from the surge main body 110 to guide the gradual deformation of the surge ear 120.

[0082] Through the above solution, since the guiding surface 121 is close to the first side surface 111, when the surge protector 100 is inserted into the contactor 200, the contactor 200 first contacts the guiding surface 121, and the abutting force after contact gradually increases as the surge protector 100 is inserted, thereby gradually pressing the surge ear 120 and causing the surge ear 120 to gradually deform, which is beneficial to the smooth insertion of the surge protector 100 into the contactor 200. Thus, the guiding surface 121 can play a guiding role during the assembly process of the surge protector 100 and the contactor 200.

[0083] As Figure 1 、 Figure 2 and Figure 3 shown, the present application also provides a contactor with a surge protector, including the contactor 200 and the surge protector 100 in any of the above embodiments; an installation groove 230 is provided on the contactor 200, and the installation groove 230 has a first groove wall 231, a second groove wall 232 and a third groove wall 233. The first groove wall 231 and the second groove wall 232 are oppositely arranged, and clamping grooves 210 are provided on both the first groove wall 231 and the second groove wall 232; the first groove wall 231 and the second groove wall 232 are both adjacent to the third groove wall 233, and a connection piece 220 is provided on the third groove wall 233; the surge protector 100 is arranged in the installation groove 230, and the buckle 130 on the surge ear 120 is clamped with the clamping groove 210, and the surge pin 140 abuts against the connection piece 220.

[0084] Through the above solution, when the surge protector 100 is installed in the installation groove 230 on the contactor 200, through the cooperation of the buckle 130 and the clamping groove 210, the surge protector 100 and the contactor 200 are kept in a connected state, and the surge pin 140 and the connection piece 220 are kept in an abutting state. When disassembling the surge protector 100, the buckle 130 and the clamping groove 210 can be disconnected, and then the surge protector 100 is taken out along the direction away from the third groove wall 233. During this process, the surge pin 140 can be directly separated from the connection piece 220, and in the taking-out direction, the surge pin 140 will not be blocked. Therefore, the surge pin 140 will not be deformed. Thus, during the repeated use of the surge protector 100, the pins of the surge protector 100 can continue to maintain good abutment with the connection pieces 220 on other contactors 200, making the surge protector 100 reliable in use and having a longer service life.

[0085] In a possible design, the clamping groove 210 on the first groove wall 231 penetrates through the first groove wall 231, and the clamping groove 210 on the second groove wall 232 penetrates through the second groove wall 232.

[0086] Through the above solution, the buckle 130 can be squeezed through the clamping groove 210 from the side where the first groove wall 231 and the second groove wall 232 are away from each other, so that the surge side ear 120 deforms in the direction close to the surge body 110, facilitating the removal of the surge protector 100 from the installation groove 230. Therefore, the above solution facilitates the removal of the surge protector 100 from the contactor 200 for the reuse of the surge protector 100.

[0087] Optionally, the contactor 200 with the surge protector 100 in the embodiment of the present application may further include a top cover 300. The direction in which the top cover 300 is inserted into the contactor 200 is different from the direction in which the surge protector 100 is inserted into the contactor 200, and the top cover 300 is located on the side of the surge protector 100 away from the contactor 200.

[0088] The top cover 300 can play a limiting role on the surge protector 100, preventing the surge protector 100 from detaching from the contactor 200 and making the connection between the surge protector 100 and the contactor 200 more firm and reliable.

[0089] For other possible designs of the contactor 200 with the surge protector 100 provided in the second aspect above and their beneficial effects, reference can be made to the beneficial effects brought by the possible implementation manners of the first aspect above, which will not be elaborated here.

[0090] In summary, since the surge pin 140 in the present application abuts against the connection piece 220 of the contactor 200, and the direction in which the surge pin 140 abuts against the connection piece 220 is the same as the direction in which the surge protector 100 is inserted into the contactor 200. Therefore, during the removal of the surge protector 100, the surge pin 140 can be directly separated from the connection piece 220, and in the removal direction, the surge pin 140 will not be blocked. Therefore, the surge pin 140 will not be deformed or damaged. Thus, during the reuse of the surge protector 100, the pins of the surge protector 100 can continue to maintain good abutment with the connection pieces 220 on other contactors 200, making the surge protector 100 reliable in use and having a longer service life.

Claims

1. A surge protector, characterized in that, include: A surge body, wherein the surge body is provided with a lightning protection module; Surge side ears are provided on opposite sides of the surge body, and a buckle is provided on the side of the surge side ear away from the surge body, and the buckle is used to engage with the card slot on the contactor; A surge pin is provided on a first side surface of the surge body, wherein the first side surface is a surface adjacent to the surface where the surge side ear is located; When the buckle is connected to the slot, the surge pin abuts against the connection piece of the contactor, and the direction in which the surge pin abuts against the connection piece is consistent with the direction in which the surge protector is installed into the contactor.

2. The surge protector according to claim 1, characterized in that, The surge pin includes a connecting section and an abutting section, the abutting section and the connecting section form an angle with each other, the connecting section is connected to the surge body, and the abutting section gradually moves away from the first side surface from an end close to the connecting section to an end away from the connecting section. When the surge protector is installed in the contactor, the abutting section is squeezed by the wiring piece and elastically deforms in a direction close to the first side surface.

3. The surge protector according to claim 2, characterized in that, The surge pin further includes a tilted section connected to an end of the abutting section away from the connecting section, and the tilted section gradually approaches the first side surface from an end close to the abutting section to an end away from the abutting section.

4. The surge protector according to claim 3, characterized in that, A smooth chamfer is provided at the connection between the tilting section and the abutting section.

5. The surge protector according to any one of claims 1 to 4, characterized in that An accommodating gap is defined between the surge side ears and the surge main body, and the accommodating gap is used to allow the surge side ears to deform toward the surge main body.

6. The surge protector according to claim 5, characterized in that, The end of the surge side ear close to the first side surface is connected to the surge body, and the end away from the first side surface is disconnected from the surge body and has a deformation gap, or, An end of the surge side ear away from the first side surface is connected to the surge body, and an end close to the first side surface is disconnected from the surge body and has a deformation gap.

7. The surge protector according to claim 5, characterized in that, A guide surface is provided at one end of the surge side ear close to the first side surface. In a direction away from the first side surface, the guide surface gradually moves away from the surge body to guide the surge side ear to gradually deform.

8. The surge protector according to claim 5, characterized in that, The side of the surge body where the surge side ear is located is the second side. When no force is applied, the angle between the portion of the surge side ear where the buckle is provided and the second side is greater than 0 degrees, and the opening of the angle faces in a direction away from the first side. When the surge protector is installed in the contactor and is squeezed by the contactor, the surge side ear deforms in a direction close to the second side, so that the angle decreases.

9. A contactor with a surge protector, characterized in that, The surge protector comprises a contactor and the surge protector according to any one of claims 1 to 8; the contactor is provided with a mounting slot, the mounting slot having a first slot wall, a second slot wall, and a third slot wall, the first slot wall and the second slot wall being arranged opposite to each other, and both the first slot wall and the second slot wall being provided with a clamping slot; the first slot wall and the second slot wall are both arranged adjacent to the third slot wall, and the third slot wall is provided with a wiring lug; The surge protector is arranged in the installation slot, and the buckle on the surge side ear is engaged with the slot, and the surge pin is in contact with the wiring piece.

10. The contactor with a surge protector according to claim 9, characterized in that, The card slot on the first groove wall penetrates through the first groove wall, and the card slot on the second groove wall penetrates through the second groove wall.

Images