Contactor

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a contactor, which comprises a base, a base, a coil support and a terminal strip, the base is arranged on the base along a first direction, an installation channel extending along a second direction is formed between the base and the base, two ends of the base are provided with wiring holes communicated with the installation channel, and the terminal strip is arranged on the coil support. The two ends of the base are each provided with a first protrusion extending towards the interior of the mounting channel. The coil support comprises a supporting part, the supporting part is arranged in the mounting channel in a penetrating mode, and second protrusions are arranged at the two ends of the supporting part. The terminal strip is embedded in the supporting part, and the two ends of the terminal strip are exposed out of the wiring holes of the corresponding ends respectively. According to the contactor provided by the utility model, the first projection is located between the two second projections, the projection of the second projections along the first direction is at least partially located between the wiring hole at the corresponding end and the first projection, and the projection of the first projection and the projection of the second projection at the corresponding end along the second direction are at least partially overlapped, so that the contactor has a good dustproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a contactor. Background Art

[0002] AC contactors are commonly used in power distribution systems in industries such as animal husbandry and textiles. In these industries, AC contactors usually operate in high-dust environments. Dust can easily enter the AC contactor through the coil terminals, causing problems such as core vibration, poor contact of contacts, and coil overheating, affecting the normal power consumption of the equipment and posing a safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a contactor with good dustproof effect.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A contactor is provided, comprising:

[0006] base;

[0007] A base is provided on the base along a first direction, a mounting channel extending along a second direction is formed between the base and the base, wiring holes communicating with the mounting channel are provided at both ends of the base along the second direction, the wiring holes are extended along the first direction, and first protrusions extending into the mounting channel are provided at both ends of the base along the second direction;

[0008] The coil support comprises a support portion extending along the second direction, the support portion passing through the installation channel, and second protrusions being provided at both ends of the support portion along the second direction;

[0009] A terminal block is embedded in the support portion, with both ends of the terminal block along the second direction respectively exposed to the wiring holes at the corresponding ends along the first direction;

[0010] The projections of the first protrusion and the second protrusion at the corresponding end along the second direction at least partially overlap, the first protrusion is located between the two second protrusions along the second direction, and the projection of the second protrusion along the first direction is at least partially located between the wiring hole at the corresponding end and the first protrusion.

[0011] Optionally, a clearance groove is provided on the second protrusion, and both ends of the terminal row along the second direction extend into the clearance groove at the corresponding ends respectively.

[0012] Optionally, the first protrusion includes an inclined side surface, the inclined side surface is arranged along the second direction toward the second protrusion at the corresponding end, and the inclined side surface is inclined along the second direction away from the second protrusion at the corresponding end.

[0013] Optionally, the base is provided with a first extension portion at both ends along the second direction, and the base is provided with a second extension portion at both ends along the second direction, the mounting channel is formed between the first extension portion and the second extension portion, and the second extension portion is provided with the wiring hole.

[0014] Optionally, both ends of the support portion along the second direction and one side along the first direction facing the base are provided with a groove, a first convex rib and a second convex rib are provided in the groove, and a dustproof groove is formed between the first convex rib and the second convex rib;

[0015] Along the second direction, the second rib is located between two of the first ribs.

[0016] Optionally, a first end plate and a first enclosing plate are provided at a first end of the base along the second direction, a projection of the first enclosing plate along the first direction is located within the coil support, a first clearance cavity is formed between the first end plate and the first enclosing plate, and a first hanging hole communicating with the first clearance cavity is provided on the first end plate;

[0017] wherein the first enclosure extends into the groove at the corresponding end;

[0018] An extension protrusion is provided on one end of the first end plate toward the support portion along a first direction, a gap is formed between the extension protrusion and the second protrusion at the corresponding end, and the extension protrusion extends into the dustproof groove at the corresponding end.

[0019] Optionally, the first enclosure panel includes two first side panels spaced apart along a third direction and a first intermediate panel arranged between the two first side panels, a first notch is formed between the first side panels and the extended protrusion, and the first notch accommodates the second rib at the corresponding end.

[0020] Optionally, a second end plate and a second enclosing plate are provided at the second end of the base along the second direction, a projection of the second enclosing plate along the first direction is located within the coil support, a second clearance cavity is formed between the second end plate and the second enclosing plate, and a second hanging hole communicating with the second clearance cavity is provided on the second end plate;

[0021] wherein the second enclosure extends into the groove at the corresponding end;

[0022] The second end plate is fitted with the second protrusion at the corresponding end along the first direction, and the second protrusion extends into the second clearance cavity.

[0023] Optionally, the second enclosure panel includes two second side panels spaced apart along a third direction and a second middle panel arranged between the two second side panels, a second notch is formed between the second side panels and the second middle panel, the second middle panel extends into the dustproof groove, and the second notch accommodates the first rib at the corresponding end.

[0024] Optionally, the cross-sectional shape of the first convex rib is an isosceles trapezoid, and / or the cross-sectional shape of the second convex rib is an isosceles trapezoid.

[0025] Beneficial effect: In the contactor provided by the present invention, the first protrusion is located between the two second protrusions, the projection of the second protrusion along the first direction is at least partially located between the wiring hole at the corresponding end and the first protrusion, and the projection of the first protrusion and the second protrusion at the corresponding end along the second direction at least partially overlap, that is, the first protrusion can prevent dust from entering the area of ​​the mounting channel between the two first protrusions through the port and the wiring hole of the mounting channel, has a good dust-proof effect, and enables the contactor to work normally, safely and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of the contactor provided by the utility model;

[0027] Figure 2 This is a schematic diagram of the assembly relationship between the base and the pedestal provided by the utility model;

[0028] Figure 3 This is a schematic structural diagram of the coil support provided by the utility model from one perspective;

[0029] Figure 4 This is a schematic structural diagram of the coil support provided by the present invention from another perspective;

[0030] Figure 5 It is a structural schematic diagram of the base provided by the utility model;

[0031] Figure 6 It is a structural diagram of the base provided by the utility model;

[0032] Figure 7 The utility model provides Figure 1 A magnified view of the structure at point A;

[0033] Figure 8 The utility model provides Figure 1 A magnified view of the structure at point B in FIG.

[0034] In the picture:

[0035] 100, base; 101, mounting channel; 110, first extension; 120, first end plate; 121, first hanging hole; 122, extension protrusion; 130, first enclosure; 131, first clearance cavity; 132, first side plate; 1321, first notch; 133, first middle plate; 140, second end plate; 141, second hanging hole; 150, second enclosure; 151, second clearance cavity; 152, second side plate; 1521, second notch; 153, second middle plate;

[0036] 200, base; 201, wiring hole; 210, first protrusion; 211, inclined side; 220, second extension;

[0037] 300, coil support; 310, support portion; 311, second protrusion; 3111, clearance groove; 312, groove; 313, first rib; 314, second rib; 315, dustproof groove; 320, bracket portion;

[0038] 400, terminal block;

[0039] 500, wire pressing assembly; 510, bolt; 520, wire pressing plate. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0041] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] Reference Figures 1 to 3 As shown, this embodiment provides a contactor, which includes a base 100 , a pedestal 200 , a coil support 300 and a terminal block 400 .

[0045] Specifically, the base 200 is arranged on the base 100 along the first direction, and an installation channel 101 extending along the second direction is formed between the base 200 and the base 100. Both ends of the base 200 along the second direction are provided with wiring holes 201 connected to the installation channel 101. The wiring holes 201 are extended along the first direction, and both ends of the base 200 along the second direction are provided with first protrusions 210 extending toward the installation channel 101; the coil bracket 300 includes a support portion 310 extending along the second direction, the support portion 310 is passed through the installation channel 101, and both ends of the support portion 310 along the second direction are provided with second protrusions 311; the terminal block 400 is embedded in the support portion 310, and both ends of the terminal block 400 along the second direction are respectively exposed to the wiring holes 201 at the corresponding ends along the first direction.

[0046] The projections of the first protrusion 210 and the second protrusion 311 at the corresponding end along the second direction at least partially overlap, the first protrusion 210 is located between the two second protrusions 311 along the second direction, and the projection of the second protrusion 311 along the first direction is at least partially located between the wiring hole 201 and the first protrusion 210 at the corresponding end.

[0047] The first direction may be a height direction of the contactor, and the second direction may be a length direction of the contactor.

[0048] In this embodiment, the first protrusion 210 is located between the two second protrusions 311, and the projection of the second protrusion 311 along the first direction is at least partially located between the wiring hole 201 and the first protrusion 210 at the corresponding end, and the projection of the first protrusion 210 and the second protrusion 311 at the corresponding end along the second direction at least partially overlap, that is, the first protrusion 210 can prevent dust from entering the area of ​​the mounting channel 101 between the two first protrusions 210 through the port and the wiring hole 201 of the mounting channel 101, and has a good dust-proof effect, so that the contactor can work normally, safely and reliably.

[0049] It is understood that the area of ​​mounting channel 101 between the two first protrusions 210 is located within the accommodating cavity enclosed by base 200 and base 100, and is therefore part of the accommodating cavity. The electromagnetic system and contact system are mounted within the accommodating cavity. The specific structure of the contact system is conventional and will not be described in detail here.

[0050] In this embodiment, referring to Figure 3 and Figure 4 As shown, the coil support 300 also includes a support portion 320 provided on the support portion 310, and a coil (not shown) is mounted on the support portion 320. The support portion 320 is located in the middle area of ​​the support portion 310 along the second direction. In this embodiment, the coil support 300 and the coil are part of an electromagnetic system, and the terminal block 400 is electrically connected to the coil. Two terminal blocks 400 are provided side by side along the third direction, and the terminal blocks 400 are embedded in the support portion 310 to effectively prevent a short circuit between the two terminal blocks 400. The third direction can be the width direction of the contactor.

[0051] Specifically, a crimping assembly 500 can be provided at the wiring hole 201 of the terminal block 400. The wire can be passed through the port of the installation channel 101 and passed between the terminal block 400 and the crimping assembly 500. A wiring operator can insert a wiring tool through the wiring hole 201 and adjust the crimping assembly 500 to tighten or loosen the wire on the terminal block 400. For example, the crimping assembly 500 can include a bolt 510 and a crimping plate 520 sleeved on the bolt 510. The bolt 510 is threadedly connected to the terminal block 400. The wiring tool can be a screwdriver or a wrench.

[0052] In this embodiment, the electromagnetic system further includes components such as an iron core and a magnetic yoke, and the specific structure of the electromagnetic system is prior art and will not be described in detail here.

[0053] In one possible implementation, Figure 3As shown, the second protrusion 311 can be provided with a clearance groove 3111, and the two ends of the terminal block 400 along the second direction extend into the clearance groove 3111 at the corresponding end, so as to make the structure of the coil support 300 compact and effectively ensure the compactness of the contactor. For example, the second protrusion 311 is provided with two clearance grooves 3111 corresponding to the terminal block 400. The clearance grooves 3111 can separate the two corresponding wire pressing assemblies 500 and the compressed wires, effectively preventing short circuits.

[0054] In one possible implementation, Figure 1 and Figure 5 As shown, the first protrusion 210 may include an inclined side surface 211, and the inclined side surface 211 is arranged along the second direction toward the second protrusion 311 at the corresponding end, and the inclined side surface 211 is inclined along the second direction away from the second protrusion 311 at the corresponding end, which effectively prevents the first protrusion 210 from interfering with the second protrusion 311 when the base 200 and the coil bracket 300 are assembled, facilitates assembly, and can keep a smaller distance between the first protrusion 210 and the second protrusion 311 or keep them offset, thereby improving dust prevention effect.

[0055] Exemplarily, the distance between the inclined side surface 211 and the second protrusion 311 is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0056] For example, the first protrusion 210 may be configured as a rib structure. Optionally, the cross-section of the first protrusion 210 may be a right-angled trapezoidal shape.

[0057] In this embodiment, referring to Figure 1 and Figure 2 As shown, the base 100 is provided with a first extension portion 110 at both ends along the second direction, and the base 200 is provided with a second extension portion 220 at both ends along the second direction. An installation channel 101 is formed between the first extension portion 110 and the second extension portion 220, wherein the second extension portion 220 is provided with a wiring hole 201, which effectively ensures the compactness of the contactor structure.

[0058] Specifically, the second protrusion 311 fits in with the first extension portion 110 to achieve a good dustproof effect.

[0059] In this embodiment, referring to Figure 3 and Figure 4As shown, the support portion 310 has grooves 312 at both ends along the second direction and on one side facing the base 100 along the first direction. The grooves 312 are provided with first and second ribs 313 and 314. Along the second direction, the second rib 314 is located between the two first ribs 313. In this embodiment, the first and second ribs 313 and 314 are provided within the grooves 312 to effectively ensure the molding quality and structural strength of the coil support 300.

[0060] Specifically, a dustproof groove 315 is formed between the first convex rib 313 and the second convex rib 314 to effectively prevent dust from entering the accommodating cavity.

[0061] Illustratively, the cross-sectional shape of the first rib 313 is an isosceles trapezoid, which effectively ensures the molding quality of the coil bracket 300 and prevents the first rib 313 from interfering with the base 100 when the coil bracket 300 and the base 100 are assembled, thereby facilitating assembly.

[0062] Illustratively, the cross-sectional shape of the second rib 314 is an isosceles trapezoid, which effectively ensures the molding quality of the coil bracket 300 and prevents the second rib 314 from interfering with the base 100 when the coil bracket 300 and the base 100 are assembled, thereby facilitating assembly.

[0063] In this embodiment, referring to Figure 1 、 Figure 4 、 Figure 6 and Figure 7 As shown, the first end of the base 100 along the second direction is provided with a first end plate 120 and a first enclosure 130. The projection of the first enclosure 130 along the first direction is located within the coil support 300. A first clearance cavity 131 is formed between the first end plate 120 and the first enclosure 130. The first end plate 120 is provided with a first hanging hole 121 that communicates with the first clearance cavity 131. The first hanging hole 121 can be used to hang an accessory (not shown), such as a surge suppressor, to facilitate the installation of the accessory. It is understood that the first enclosure 130 is located within the accommodating cavity.

[0064] Exemplarily, at least one first hanging hole 121 is provided on the first end plate 120. Optionally, two first hanging holes 121 are provided on the first end plate 120 at intervals along the first direction.

[0065] Specifically, the first enclosure 130 extends into the groove 312 at the corresponding end, effectively preventing dust from entering the accommodating cavity through the first hanging hole 121 and the first clearance cavity 131 .

[0066] Exemplarily, the distance between the first enclosure 130 and the groove wall of the groove 312 at the corresponding end is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0067] Specifically, the first end plate 120 is provided with an extension protrusion 122 at one end toward the support portion 310 along the first direction, and a gap is formed between the extension protrusion 122 and the second protrusion 311 at the corresponding end along the second direction. The extension protrusion 122 extends into the dustproof groove 315 at the corresponding end, effectively preventing dust from entering the accommodating cavity through the first hanging hole 121 and the first yield cavity 131, and realizing the positioning assembly between the coil bracket 300 and the base 100, and the assembly is stable and reliable.

[0068] Exemplarily, the distance between the extension protrusion 122 and the first rib 313 at the corresponding end is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0069] Exemplarily, the distance between the extension protrusion 122 and the second rib 314 at the corresponding end is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0070] Specifically, the first enclosure panel 130 includes two first side panels 132 spaced apart along the third direction and a first intermediate panel 133 disposed between the two first side panels 132. A first notch 1321 is formed between the first side panels 132 and the extended protrusion 122. The first notch 1321 accommodates the second rib 314 at the corresponding end to prevent positional interference between the first enclosure panel 130 and the second protrusion 311 at the corresponding end. The shape of the first notch 1321 and the shape of the second rib 314 can be the same.

[0071] In this embodiment, referring to Figure 1 、 Figure 4 、 Figure 6 and Figure 8 As shown, the second end of the base 100 along the second direction is provided with a second end plate 140 and a second enclosure 150. The projection of the second enclosure 150 along the first direction is located within the coil support 300. A second clearance cavity 151 is formed between the second end plate 140 and the second enclosure 150. The second end plate 140 is provided with a second hanging hole 141 that communicates with the second clearance cavity 151. The second hanging hole 141 can be used to hang an accessory, such as a relay, to facilitate the installation of the accessory. It is understood that the second enclosure 150 is located within the accommodating cavity.

[0072] Exemplarily, at least one second hanging hole 141 is defined on the second end plate 140 .

[0073] Specifically, the second enclosure 150 extends into the groove 312 at the corresponding end, effectively preventing dust from entering the accommodating cavity through the second hanging hole 141 and the second clearance cavity 151 .

[0074] Specifically, the second end plate 140 is fitted with the second protrusion 311 at the corresponding end along the first direction, and the second protrusion 311 extends into the second clearance cavity 151 to achieve a good dustproof effect.

[0075] Specifically, the second enclosure panel 150 includes two second side panels 152 spaced apart along the third direction, and a second intermediate panel 153 disposed between the two second side panels 152. A second notch 1521 is formed between the second side panels 152 and the second intermediate panel 153. The second intermediate panel 153 extends into the dustproof groove 315. The second notch 1521 accommodates the first rib 313 at the corresponding end to prevent positional interference between the second enclosure panel 150 and the first protrusion 210 at the corresponding end. The shape of the second notch 1521 can be the same as that of the first rib 313.

[0076] Exemplarily, the distance between the second middle plate 153 and the first rib 313 at the corresponding end is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0077] Exemplarily, the distance between the second middle plate 153 and the second rib 314 at the corresponding end is less than or equal to 0.5 mm, such as 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm, to ensure a good dustproof effect.

[0078] In this embodiment, the connection structure between the first end of the base 100 along the second direction and the support part 310 can be the same as the connection structure between the second end of the base 100 along the second direction and the support part 310, that is, the first end and the second end of the base 100 along the second direction are both provided with a first end plate 120 and a first enclosure 130, or the first end and the second end of the base 100 along the second direction are both provided with a second end plate 140 and a second enclosure 150.

[0079] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A contactor, characterized in that: include: Base (100); A base (200) is provided on the base (100) along a first direction, a mounting channel (101) extending along a second direction is formed between the base (200) and the base (100), wiring holes (201) communicating with the mounting channel (101) are provided at both ends of the base (200) along the second direction, the wiring holes (201) extending along the first direction, and first protrusions (210) extending into the mounting channel (101) are provided at both ends of the base (200) along the second direction; The coil support (300) comprises a support portion (310) extending along a second direction, the support portion (310) passing through the installation channel (101), and second protrusions (311) are provided at both ends of the support portion (310) along the second direction; A terminal block (400) is embedded in the support portion (310), and both ends of the terminal block (400) along the second direction are exposed to the wiring holes (201) at the corresponding ends along the first direction; The projections of the first protrusion (210) and the second protrusion (311) at the corresponding end along the second direction at least partially overlap, the first protrusion (210) is located between the two second protrusions (311) along the second direction, and the projection of the second protrusion (311) along the first direction is at least partially located between the wiring hole (201) at the corresponding end and the first protrusion (210).

2. The contactor according to claim 1, characterized in that A clearance groove (3111) is provided on the second protrusion (311), and both ends of the terminal block (400) along the second direction extend into the clearance groove (3111) at the corresponding ends.

3. The contactor according to claim 1, wherein: The first protrusion (210) includes an inclined side surface (211), the inclined side surface (211) is arranged along the second direction toward the second protrusion (311) at the corresponding end, and the inclined side surface (211) is inclined along the second direction away from the second protrusion (311) at the corresponding end.

4. The contactor according to any one of claims 1 to 3, characterized in that: The base (100) is provided with a first extension portion (110) at both ends along the second direction, and the base (200) is provided with a second extension portion (220) at both ends along the second direction, the mounting channel (101) is formed between the first extension portion (110) and the second extension portion (220), and the second extension portion (220) is provided with the wiring hole (201).

5. The contactor according to claim 4, characterized in that: Both ends of the support portion (310) along the second direction and along the first direction toward the base (100) are provided with grooves (312), a first convex rib (313) and a second convex rib (314) are provided in the grooves (312), and a dustproof groove (315) is formed between the first convex rib (313) and the second convex rib (314); Along the second direction, the second rib (314) is located between the two first ribs (313).

6. The contactor according to claim 5, characterized in that The base (100) is provided with a first end plate (120) and a first enclosure plate (130) at a first end along the second direction, the projection of the first enclosure plate (130) along the first direction is located within the coil support (300), and a first clearance cavity (131) is formed between the first end plate (120) and the first enclosure plate (130), and the first end plate (120) is provided with a first hanging hole (121) in communication with the first clearance cavity (131); wherein the first enclosure plate (130) extends into the groove (312) at the corresponding end; An extension protrusion (122) is provided on one end of the first end plate (120) along a first direction toward the support portion (310), a gap is formed between the extension protrusion (122) and the second protrusion (311) at the corresponding end, and the extension protrusion (122) extends into the dustproof groove (315) at the corresponding end.

7. The contactor according to claim 6, characterized in that The first enclosure (130) includes two first side panels (132) spaced apart along a third direction and a first intermediate panel (133) disposed between the two first side panels (132), a first notch (1321) being formed between the first side panels (132) and the extending protrusion (122), and the first notch (1321) accommodating the second rib (314) at the corresponding end.

8. The contactor according to claim 5, characterized in that The base (100) is provided with a second end plate (140) and a second enclosure plate (150) at a second end along the second direction, the projection of the second enclosure plate (150) along the first direction is located within the coil support (300), and a second clearance cavity (151) is formed between the second end plate (140) and the second enclosure plate (150), and the second end plate (140) is provided with a second hanging hole (141) in communication with the second clearance cavity (151); wherein the second enclosure plate (150) extends into the groove (312) at the corresponding end; The second end plate (140) is fitted with the second protrusion (311) at the corresponding end along the first direction, and the second protrusion (311) extends into the second clearance cavity (151).

9. The contactor according to claim 8, characterized in that The second enclosure (150) includes two second side panels (152) spaced apart along a third direction and a second middle panel (153) disposed between the two second side panels (152), a second notch (1521) being formed between the second side panels (152) and the second middle panel (153), the second middle panel (153) extending into the dustproof groove (315), and the second notch (1521) accommodating the first rib (313) at the corresponding end.

10. The contactor according to claim 5, characterized in that The cross-sectional shape of the first convex rib (313) is an isosceles trapezoid, and / or the cross-sectional shape of the second convex rib (314) is an isosceles trapezoid.

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