Contactor

Abstract

The invention provides a contactor, and relates to the technical field of switching devices. The contactor comprises a contactor body provided with a mounting groove, an electromagnetic coil arranged on the contactor body, a coil terminal arranged on the contactor body and electrically connected with the electromagnetic coil, and a wiring terminal arranged on the contactor body and spaced from the coil terminal, and an electrical connection assembly including a first electrical connector, a second electrical connector, and a third electrical connector. The third electric connecting piece penetrates through the mounting groove and is detachably connected with the contactor body, the third electric connecting piece is detachably connected with the first electric connecting piece and the second electric connecting piece, the first electric connecting piece is detachably connected with the wiring terminal, and the second electric connecting piece is detachably connected with the coil terminal. According to the contactor provided by the invention, the conventional integrated part mode is replaced by a split part mode, so that part assembly is facilitated, and the production efficiency of the contactor is improved.

Description

Technical Field

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

[0002] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art.

[0003] In order to facilitate wiring when used by users, the wiring terminals of the contactor are usually arranged at the top of the contactor body away from the electromagnetic coil, resulting in a long distance between the wiring terminals and the electromagnetic coil. In existing contactors, the wiring terminals and electrical connectors are set as an integrated part, which is connected to the coil terminal after multiple bending to achieve electrical connection between the wiring terminals and the electromagnetic coil. However, the connection method of using an integrated part is not conducive to the assembly of parts, thereby affecting the production efficiency of the contactor. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a contactor, aiming to solve the technical problem in the related art that the wiring terminals and the electrical connectors are integrated into one, which causes inconvenience in assembling parts and affects the production efficiency of the contactor.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] An embodiment of the present application provides a contactor, comprising:

[0007] The contactor body is provided with a mounting groove;

[0008] An electromagnetic coil is arranged on the contactor body;

[0009] A coil terminal, disposed on the contactor body and electrically connected to the electromagnetic coil;

[0010] A wiring terminal is arranged on the contactor body and is spaced apart from the coil terminal;

[0011] The electrical connection component includes a first electrical connection member, a second electrical connection member and a third electrical connection member. The third electrical connection member is inserted into the mounting groove and is detachably connected to the contactor body. The third electrical connection member is detachably connected to the first electrical connection member and the second electrical connection member respectively. The first electrical connection member is detachably connected to the wiring terminal, and the second electrical connection member is detachably connected to the coil terminal.

[0012] In one embodiment, the first electrical connector is a first spring, the second electrical connector is a second spring, one end of the first spring abuts against the wiring terminal, and the other end abuts against one end of the third electrical connector, one end of the second spring abuts against the coil terminal, and the other end abuts against an end of the third electrical connector away from the first spring.

[0013] In one embodiment, the connecting terminal is provided with a first limiting portion passing through the first spring, one end of the third electrical connector is provided with a second limiting portion passing through the first spring, and the end of the third electrical connector away from the second limiting portion is provided with a third limiting portion, and the third limiting portion passes through the second spring.

[0014] In one embodiment, the contactor further comprises a mounting member arranged on the contactor body, the coil terminal is arranged on the mounting member, the mounting member is provided with a limiting hole, and the second spring is passed through the limiting hole.

[0015] In one embodiment, the mounting member is provided with a conical hole, the conical hole is located at an end of the limiting hole away from the coil terminal and is connected to the limiting hole, and the second spring is respectively passed through the conical hole and the limiting hole.

[0016] In one embodiment, one of the contactor body and the third electrical connector is provided with an elastic clamping member, and the other one is provided with a limiting groove; when the third electrical connector slides along the installation groove to a preset position, the elastic clamping member engages with the limiting groove.

[0017] In one of the embodiments, the contactor body is provided with the elastic clip, the third electrical connector is provided with two spaced apart limiting grooves, the two limiting grooves are mirror-imaged, and the elastic clip can be engaged with any one of the two limiting grooves.

[0018] In one embodiment, the contactor body includes a base, a cover plate and a protective cover, the base is provided with the mounting groove, the electromagnetic coil and the coil terminal are arranged on the base, the cover plate is connected to the base, the cover plate is provided with a slot connected to the mounting groove, the wiring terminal is arranged on the cover plate and located at the slot, the protective cover is provided with a plug-in portion plugged into the slot, and the protective cover is used to shield the wiring terminal.

[0019] In one of the embodiments, the outer peripheral side of the base is located in a partially closed configuration of the mounting groove.

[0020] In one embodiment, the third electrical connector is bent near the coil terminal.

[0021] The beneficial effects of this application are as follows:

[0022] In the contactor provided in the present application, the wiring terminals are connected to the coil terminals through the first electrical connector, the third electrical connector and the second electrical connector in sequence, thereby realizing the electrical connection between the wiring terminals and the electromagnetic coil. At the same time, the wiring terminals, the first electrical connector, the second electrical connector, the third electrical connector and the coil terminals are detachably connected to each other, thereby replacing the existing integrated parts with split parts, which is more conducive to parts assembly and thus improves the production efficiency of the contactor.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and understandable, preferred embodiments are specifically listed below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a contactor in one embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram of a three-dimensional exploded structure of a contactor in one embodiment of the present application is shown;

[0027] Figure 3 A schematic diagram of the structure of a contactor from one perspective in one embodiment of the present application is shown;

[0028] Figure 4 Shows Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 5 Shows Figure 4 Schematic diagram of the enlarged structure of the middle C area;

[0030] Figure 6 Shows Figure 3 Schematic diagram of the cross-sectional structure at the middle BB;

[0031] Figure 7 Shows Figure 6 Schematic diagram of the enlarged structure of the D region in the middle;

[0032] Figure 8 Another perspective structural schematic diagram of a contactor in one embodiment of the present application is shown;

[0033] Fig. 9 Shows Figure 8 Schematic diagram of the cross-sectional structure at EE in the middle;

[0034] Fig.10 Shows Fig. 9 Schematic diagram of the enlarged structure of the middle F region;

[0035] Fig.11 A schematic diagram of the three-dimensional assembly structure of the wiring terminal, the coil terminal and the electrical connection component in one embodiment of the present application is shown.

[0036] Description of main component symbols:

[0037] 100-contactor; 110-contactor body; 111-base; 1111-mounting slot; 1112-elastic clip; 112-cover; 1121-slot; 113-protective cover; 1131-plug-in part; 120-electromagnetic coil; 130-coil terminal; 140-wiring terminal; 141-first limiting part; 150-electrical connection assembly; 151-first electrical connection member; 152-second electrical connection member; 153-third electrical connection member; 1531-second limiting part; 1532-third limiting part; 1533-limiting slot; 160-mounting member; 161-limiting hole; 162-conical hole. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] In the description of the present application, terms such as "center", "longitudinal", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the description of this application, the terms "first", "second", etc. are used to distinguish different objects and cannot be understood as indicating or implying a specific order or a primary and secondary relationship, or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of this application, the term "and / or" indicates that there may be three relationships. For example, A and / or B may indicate that A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] In the description of this application, "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "perpendicular" also includes not only the absolutely perpendicular situation, but also the roughly perpendicular situation conventionally recognized in engineering. For example, if the angle between two directions is 80° to 90°, the two directions can be considered perpendicular; if the angle between two directions is 0° to 10°, the two directions can be considered parallel.

[0045] A contactor is a widely used switching device that usually uses the electromagnetic principle to switch the main circuit on and off by controlling the circuit. In order to facilitate wiring when used by users, the wiring terminals of the contactor are usually arranged on the top of the contactor body away from the electromagnetic coil, resulting in a long distance between the wiring terminals and the electromagnetic coil, making it difficult to electrically connect the two.

[0046] In the existing contactor, the connection terminal and the electrical connector are set as an integrated part, which is connected to the coil terminal after multiple bending, so as to realize the electrical connection between the connection terminal and the electromagnetic coil. However, the connection method of the integrated part is not conducive to the assembly of parts, thereby affecting the production efficiency of the contactor.

[0047] In addition, in the existing contactors, the installation of the electrical connector requires slotting on the outer peripheral side of the base of the contactor body, resulting in the need to set a protective cover on the outer peripheral side of the base to protect the electrical connector, which increases the overall size of the contactor and is not conducive to the miniaturization design of the contactor.

[0048] like Figure 1 As shown, in order to solve the above technical problems, an embodiment of the present application provides a contactor 100, which relates to the technical field of switch electrical appliances and is used to realize the on-off of a main circuit. It should be noted that the contactor 100 provided in this embodiment can be an AC contactor or a DC contactor, and no specific limitation is made here.

[0049] Combination Figures 2 to 4 As shown, the contactor 100 provided in this embodiment includes: a contactor body 110 , an electromagnetic coil 120 , a coil terminal 130 , a connection terminal 140 and an electrical connection assembly 150 .

[0050] Among them, the contactor body 110 is provided with a mounting groove 1111, the electromagnetic coil 120 is arranged on the contactor body 110, the coil terminal 130 is arranged on the contactor body 110 and is electrically connected to the electromagnetic coil 120, the wiring terminal 140 is arranged on the contactor body 110 and is spaced apart from the coil terminal 130, the electrical connection component 150 includes a first electrical connector 151, a second electrical connector 152 and a third electrical connector 153, the third electrical connector 153 is penetrated in the mounting groove 1111 and is detachably connected to the contactor body 110, the third electrical connector 153 is detachably connected to the first electrical connector 151 and the second electrical connector 152 respectively, the first electrical connector 151 is detachably connected to the wiring terminal 140, and the second electrical connector 152 is detachably connected to the coil terminal 130.

[0051] It should be noted that "detachable connection" can be understood as the ability to disassemble two objects, for example, it can be abutment, plug-in, snap-on, screw connection, quick-release parts connection, etc., excluding welding and one-piece molding.

[0052] It can be understood that in the contactor 100 provided in this embodiment, the terminal 140 is connected to the coil terminal 130 through the first electrical connector 151, the third electrical connector 153 and the second electrical connector 152 in sequence, thereby realizing the electrical connection between the terminal 140 and the electromagnetic coil 120. At the same time, the terminal 140, the first electrical connector 151, the second electrical connector 152, the third electrical connector 153 and the coil terminal 130 are detachably connected to each other, thereby replacing the existing integrated parts with split parts, which is more conducive to parts assembly and thus improves the production efficiency of the contactor 100.

[0053] like Fig.11 As shown, in one embodiment, the first electrical connector 151 is a first spring, the second electrical connector 152 is a second spring, one end of the first spring abuts against the wiring terminal 140, and the other end abuts against one end of the third electrical connector 153, one end of the second spring abuts against the coil terminal 130, and the other end abuts against an end of the third electrical connector 153 away from the first spring.

[0054] It is understandable that the first spring is used as the first electrical connector 151 and the second spring is used as the second electrical connector 152, which simplifies the parts structure and makes assembly more convenient. In addition, the spring is a commonly used standard part, which can reduce the parts manufacturing cost.

[0055] like Fig.11 As shown, further, the connecting terminal 140 is provided with a first limiting portion 141 passing through the first spring, one end of the third electrical connector 153 is provided with a second limiting portion 1531 passing through the first spring, and one end of the third electrical connector 153 away from the second limiting portion 1531 is provided with a third limiting portion 1532, and the third limiting portion 1532 is passed through the second spring.

[0056] It can be understood that, by setting the first limiting portion 141, the second limiting portion 1531 and the third limiting portion 1532, a limiting effect can be played, thereby enhancing the stability of the first spring and the second spring, and reducing the possibility of displacement or slipping of the first spring and the second spring, thereby improving the stability of the electrical connection between the terminal 140 and the electromagnetic coil 120.

[0057] like Figures 3 to 5 As shown, further, the contactor 100 also includes a mounting member 160 disposed on the contactor body 110 , the coil terminal 130 is disposed on the mounting member 160 , the mounting member 160 is provided with a limiting hole 161 , and the second spring is passed through the limiting hole 161 .

[0058] It is understandable that, by providing the limiting hole 161 on the mounting member 160 , the second spring can be further limited to enhance the stability of the second spring, thereby improving the stability of the electrical connection between the connecting terminal 140 and the electromagnetic coil 120 .

[0059] like Figures 3 to 5 As shown, further, the mounting member 160 is provided with a conical hole 162, which is located at one end of the limiting hole 161 away from the coil terminal 130 and is connected to the limiting hole 161, and the second spring is respectively penetrated through the conical hole 162 and the limiting hole 161.

[0060] It is understandable that the tapered hole 162 has an inclined hole wall, which can guide the second spring to pass through the limiting hole 161, that is, it plays a guiding role, which is conducive to the assembly of parts and improves the assembly efficiency. At the same time, the tapered hole 162 can also play a role in further limiting the second spring, thereby further enhancing the stability of the second spring.

[0061] Furthermore, a portion of the first spring and a portion of the second spring are sprayed with an anti-corrosion layer, thereby extending the service life of the electrical connection assembly 150 .

[0062] In another embodiment, the first electrical connector 151 and / or the second electrical connector 152 are spring clips. Specifically, the first electrical connector 151 is a first spring clip, the second electrical connector 152 is a second spring clip, a first card slot is provided on the wiring terminal 140, a second card slot and a third card slot are provided on the third electrical connector 153, and a fourth card slot is provided on the coil terminal 130. The first spring clip is respectively inserted into the first card slot and the second card slot, and the second spring clip is respectively inserted into the third card slot and the fourth card slot, thereby realizing the plug-in between adjacent pairs of the wiring terminal 140, the first electrical connector 151, the second electrical connector 152, the third electrical connector 153, and the coil terminal 130, and also realizing a detachable connection. No specific restrictions are made on the structures of the first electrical connector 151 and the second electrical connector 152 herein.

[0063] like Figure 1 as well as Figures 8 to 10 As shown, in one embodiment, one of the contactor body 110 and the third electrical connector 153 is provided with an elastic clip 1112, and the other one is provided with a limiting groove 1533; when the third electrical connector 153 slides along the installation groove 1111 to a preset position, the elastic clip 1112 engages with the limiting groove 1533.

[0064] Exemplarily, the contactor body 110 is provided with an elastic clamping member 1112, and the third electrical connector 153 is provided with a limiting groove 1533. Of course, the contactor body 110 may also be provided with a limiting groove 1533, and the third electrical connector 153 may be provided with an elastic clamping member 1112.

[0065] Exemplarily, the elastic clip 1112 can be a plastic clip, or a combination of a spring and a steel ball (the spring is connected between the steel ball and the contactor body 110, and the steel ball can be snapped into the limiting groove 1533 or slide out of the limiting groove 1533 under the action of the elastic force generated by the spring). No specific restrictions are made on the structure of the elastic clip 1112 herein.

[0066] It can be understood that since one of the contactor body 110 and the third electrical connector 153 is provided with an elastic clip 1112, and the other one is provided with a limiting groove 1533, when the third electrical connector 153 slides along the installation groove 1111 to a preset position, the elastic clip 1112 engages with the limiting groove 1533, thereby achieving a quick connection between the third electrical connector 153 and the contactor body 110, facilitating the installation of the third electrical connector 153, and thus improving the production efficiency of the contactor 100.

[0067] At the same time, through the engagement of the elastic clamping member 1112 with the limiting groove 1533 and the setting of the installation groove 1111, the movement of the third electrical connector 153 relative to the contactor body 110 can be effectively limited, making the electrical connection between the terminal 140 and the electromagnetic coil 120 more stable.

[0068] like Figure 1 as well as Figures 8 to 10 As shown, further, the contactor body 110 is provided with an elastic clamping member 1112, and the third electrical connector 153 is provided with two spaced apart limiting grooves 1533, the two limiting grooves 1533 are mirror-imaged, and the elastic clamping member 1112 can be engaged with any one of the two limiting grooves 1533.

[0069] It is understandable that by mirror-setting two limiting grooves 1533 on the third electrical connector 153, the third electrical connector 153 can be universal at the input and output ends, thereby increasing the versatility of the parts and reducing material costs.

[0070] In another embodiment, the third electrical connector 153 can be detachably connected to the contactor body 110 by passing a screw through the third electrical connector 153 and connecting it to the contactor body 110, or a pin hole is provided on the third electrical connector 153, and a pin shaft that can be movably passed through the pin hole is provided on the contactor body 110. No specific limitation is made to the manner in which the third electrical connector 153 is detachably connected to the contactor body 110.

[0071] like Figure 3 , Figure 6 and Figure 7As shown, in one embodiment, the contactor body 110 includes a base 111, a cover plate 112 and a protective cover 113, the base 111 is provided with a mounting groove 1111, the electromagnetic coil 120 and the coil terminal 130 are arranged on the base 111, the cover plate 112 is connected to the base 111, the cover plate 112 is provided with a slot 1121 connected to the mounting groove 1111, the wiring terminal 140 is arranged on the cover plate 112 and is located at the slot 1121, the protective cover 113 is provided with a plug-in portion 1131 plugged into the slot 1121, and the protective cover 113 is used to shield the wiring terminal 140.

[0072] It is understandable that the protection cover 113 can protect the connection terminal 140, reducing the possibility of the connection terminal 140 contacting an external object and causing a short circuit or a personal safety accident. At the same time, by providing the plug-in portion 1131 and the slot 1121, the protection cover 113 and the cover plate 112 are plugged together, which can improve the dustproof and waterproof effects of the protection cover 113.

[0073] like Figure 2 As shown, further, the outer peripheral side of the base 111 is located in a partially closed setting of the mounting groove 1111, that is, the mounting groove 1111 does not penetrate the outer peripheral side of the base 111 and is exposed to the outside, thereby eliminating the need for a protective cover on the outer peripheral side of the base 111, which is beneficial to the miniaturized design of the contactor 100 and reduces the manufacturing cost of the contactor 100.

[0074] like Fig.11 As shown, in one embodiment, the third electrical connector 153 is bent near the coil terminal 130, which facilitates the precise abutment between the second electrical connector 152 and the coil terminal 130. In particular, when the second electrical connector 152 is a second spring, the second spring can be vertically abutted against the coil terminal 130. At the same time, the structural strength and stability of the third electrical connector 153 can be enhanced, thereby improving the stability of the electrical connection between the terminal 140 and the electromagnetic coil 120.

[0075] To summarize, when assembling the electrical connection component 150, for example, the third electrical connection component 153 can be inserted into the installation groove 1111 from bottom to top until the elastic clip 1112 is engaged with the limiting groove 1533, and then the first spring is placed between the connecting terminal 140 and the third electrical connection component 153, so that the first limiting portion 141 is inserted into the first spring, and the second limiting portion 1531 is inserted into the first spring, and the second spring is placed between the third electrical connection component 153 and the coil terminal 130, so that the third limiting portion 1532 is inserted into the second spring, and the second spring abuts against the coil terminal 130. The assembly of the electrical connection component 150 is now completed, the structure is simple and reliable, and it is easy to achieve electrical connection between the connecting terminal 140 and the electromagnetic coil 120.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0077] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A contactor, characterized in that: include: The contactor body (110) is provided with a mounting groove (1111); An electromagnetic coil (120) is arranged on the contactor body (110); A coil terminal (130) is disposed on the contactor body (110) and is electrically connected to the electromagnetic coil (120); A connection terminal (140) is arranged on the contactor body (110) and is spaced apart from the coil terminal (130); An electrical connection assembly (150) comprises a first electrical connection member (151), a second electrical connection member (152) and a third electrical connection member (153); the third electrical connection member (153) is inserted into the mounting groove (1111) and is detachably connected to the contactor body (110); the third electrical connection member (153) is detachably connected to the first electrical connection member (151) and the second electrical connection member (152), respectively; the first electrical connection member (151) is detachably connected to the wiring terminal (140); and the second electrical connection member (152) is detachably connected to the coil terminal (130).

2. The contactor according to claim 1, characterized in that: The first electrical connector (151) is a first spring, and the second electrical connector (152) is a second spring. One end of the first spring abuts against the wiring terminal (140), and the other end abuts against one end of the third electrical connector (153). One end of the second spring abuts against the coil terminal (130), and the other end abuts against one end of the third electrical connector (153) away from the first spring.

3. The contactor according to claim 2, characterized in that: The connecting terminal (140) is provided with a first limiting portion (141) which is penetrated by the first spring, one end of the third electrical connector (153) is provided with a second limiting portion (1531) which is penetrated by the first spring, and one end of the third electrical connector (153) which is away from the second limiting portion (1531) is provided with a third limiting portion (1532), and the third limiting portion (1532) is penetrated by the second spring.

4. The contactor according to claim 2, characterized in that: The contactor further comprises a mounting member (160) arranged on the contactor body (110), the coil terminal (130) is arranged on the mounting member (160), the mounting member (160) is provided with a limiting hole (161), and the second spring is passed through the limiting hole (161).

5. The contactor according to claim 4, characterized in that: The mounting member (160) is provided with a conical hole (162), the conical hole (162) is located at an end of the limiting hole (161) away from the coil terminal (130), and is connected to the limiting hole (161), and the second spring is respectively inserted into the conical hole (162) and the limiting hole (161).

6. The contactor according to claim 1, characterized in that: One of the contactor body (110) and the third electrical connector (153) is provided with an elastic clamping piece (1112), and the other one is provided with a limiting groove (1533); when the third electrical connector (153) slides along the installation groove (1111) to a preset position, the elastic clamping piece (1112) engages with the limiting groove (1533).

7. The contactor according to claim 6, characterized in that: The contactor body (110) is provided with the elastic snap-in component (1112), and the third electrical connector (153) is provided with two spaced-apart limiting grooves (1533), the two limiting grooves (1533) are mirror-imaged, and the elastic snap-in component (1112) can be engaged with any one of the two limiting grooves (1533).

8. The contactor according to any one of claims 1 to 7, characterized in that: The contactor body (110) comprises a base (111), a cover plate (112) and a protective cover (113); the base (111) is provided with the mounting groove (1111); the electromagnetic coil (120) and the coil terminal (130) are arranged on the base (111); the cover plate (112) is connected to the base (111); the cover plate (112) is provided with a slot (1121) connected to the mounting groove (1111); the wiring terminal (140) is arranged on the cover plate (112) and is located at the slot (1121); the protective cover (113) is provided with a plug-in portion (1131) plugged into the slot (1121); and the protective cover (113) is used to shield the wiring terminal (140).

9. The contactor according to claim 8, characterized in that: The outer peripheral side of the base (111) is located in a partially closed arrangement in the mounting groove (1111).

10. The contactor according to any one of claims 1 to 7, characterized in that: The third electrical connector (153) is bent at a portion close to the coil terminal (130).

Images