A drawer type coil device for contactor

Abstract

The present invention relates to a drawer-type coil device for a contactor, wherein the contactor comprises a base, the drawer-type coil device comprises a drawer seat, the drawer seat is mounted on the base, the drawer seat comprises an integrated structure of a movable buckle, a box body and a bottom plate, the box body is arranged above the front end of the bottom plate, a disassembly hole is arranged at the bottom of the front end of the box body, the movable buckle is connected to the bottom plate in the disassembly hole, and a clamping hole matching the movable buckle is arranged at the front end of the base. Compared with the prior art, the present invention can conveniently separate the coil device from the contactor body as a whole through the design of the base and the drawer seat, and then replace the coil separately; the tool-free disassembly and assembly of the coil device is realized, and the user can disassemble and install it by hand, which is more convenient and quick, and improves the user's experience.

Description

Technical Field

[0001] The invention relates to the technical field of contactors, and in particular to a drawer-type coil device for contactors. Background Art

[0002] Most of the contactor products on the market cannot replace the contactor coil alone. When replacing the coil, all the parts that match the coil need to be replaced at the same time, which is very costly. Some of the contactors that can replace the contactor coil alone have very complicated installation structures. This leads to a very complicated disassembly process when the contactor coil needs to be replaced. External tools are required, and installation and disassembly cannot be performed by hand, making it very inconvenient to replace the contactor coil. Summary of the invention

[0003] The purpose of the present invention is to provide a drawer-type coil device for a contactor in order to overcome the defects of the prior art.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A drawer-type coil device for a contactor, the contactor includes a base, the drawer-type coil device includes a drawer seat, the drawer seat is installed on the base, the drawer seat includes an active buckle, a box body and a bottom plate of an integrated structure, the box body is arranged above the front end of the bottom plate, a disassembly hole is provided at the bottom of the front end of the box body, the active buckle is connected to the bottom plate in the disassembly hole, and a clamping hole matching the active buckle is provided at the front end of the base.

[0006] Furthermore, the movable buckle includes a retaining plate and a pin plate. The pin plate is vertically arranged, and its middle part is connected to the bottom plate, so that the part of the pin plate below the bottom plate forms a flange for connecting to the clamping hole at the front end of the base; the retaining plate is horizontally arranged, one end of which is connected to the top of the pin plate and the other end is suspended in the air.

[0007] Furthermore, the retaining plate is a transverse trapezoidal structure, and the connection between the retaining plate and the pin plate is the short side of the trapezoid.

[0008] Furthermore, a barb is provided below the suspended end of the retaining plate.

[0009] Furthermore, it also includes a yoke, a coil, a PCBAA (electronic component board) installation box and a clamping plate. The coil is sleeved on the middle pole of the yoke. The tail end of the base plate is provided with a mounting groove. The two ends of the yoke are stepped structures, one end is embedded in the mounting groove, and the other end is fixed to the base plate through the clamping plate. The PCBAA installation box is fixed in the box body, and the coil is connected through a wiring piece and a wire.

[0010] Furthermore, it also includes a cover, which is fixed to the upper end of the box body and is used to fix the PCBAA installation box.

[0011] Furthermore, an anti-slip pattern and an indication pattern are provided on the upper surface of the cover.

[0012] Furthermore, it also includes a buffer component, which is respectively installed on both sides of the yoke step structure and nested in the periphery of the step structure.

[0013] Furthermore, the mounting groove and the stepped structure at one end of the yoke are connected by interference fit.

[0014] Furthermore, a slide rail groove is provided on the base, and a corresponding slide rail is provided at the bottom of the drawer seat, and the drawer seat slides on the base through the cooperation of the slide rail groove and the slide rail.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention can conveniently separate the coil device from the contactor body as a whole through the design of the base and the drawer seat, and then the coil can be replaced separately.

[0017] 2. The present invention realizes tool-free disassembly and assembly of the coil device through the cooperation of the movable buckle and the base. The user can disassemble and install it by hand, which is more convenient and quick, and improves the user experience.

[0018] 3. The retaining plate of the movable buckle is designed as a horizontal trapezoid, which can increase the contact area between the hand and the retaining plate, making it easier for the user to exert force and lift the movable buckle; a barb is provided at one end of the retaining plate of the movable buckle, which can further increase the contact area between the hand and the retaining plate and facilitate the user to pull out the drawer seat.

[0019] 4. The present invention combines the box body and the bottom plate into an integrated drawer seat, fixes the PCBAA installation box in the box body, and connects the coil and the PCBAA installation box through a wiring piece and a wire. The structure is compact and simple, with fewer combined parts, which can effectively reduce costs, and the assembly is more firm and stable. At the same time, the coil is easy to disassemble and install.

[0020] 5. The upper surface of the cover is provided with anti-slip patterns and indicator patterns, which can not only increase the user's fulcrum for pulling out the drawer seat, but also serve as an indicator of the pulling direction, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the installation structure of the base and coil device.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the drawer seat.

[0023] Figure 3 Schematic diagram of the explosion structure of the coil device.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the coil device.

[0025] Figure 5 Schematic diagram of the top view of the coil device.

[0026] Figure numerals: 1, drawer seat, 101, movable buckle, 102, box body, 103, bottom plate, 104, disassembly hole, 105, installation groove, 111, pin plate, 112, retaining plate, 113, flange, 2, base, 201, card hole, 202, slide rail groove, 3, yoke, 4, coil, 5, PCBAA installation box, 6, splint, 7, cover, 8, buffer, 9, wiring piece. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0028] like Figure 1 As shown, this embodiment provides a drawer-type coil device for a contactor. The contactor includes a base 2. The drawer-type coil device includes a drawer seat 1, which is mounted on the base 2. A slide rail groove 202 is provided on the base 2. A corresponding slide rail (not shown in the figure) is provided at the bottom of the drawer seat 1. The drawer seat 1 slides left and right on the base 2 through the cooperation of the slide rail groove 202 and the slide rail. An active buckle 101 is provided at the bottom of the right end of the drawer seat 1, and a clamping hole 201 that cooperates with the active buckle 101 is provided at the right end of the base 2. Therefore, after the drawer seat 1 slides to a certain position on the base 2, it can be fixed by the active buckle 101 and the clamping hole 201.

[0029] like Figure 2 As shown, the drawer seat 1 includes an integrated structure of an active buckle 101, a box body 102 and a bottom plate 103. The box body 102 is arranged above the left end of the bottom, and a disassembly hole 104 is provided at the bottom of the left end of the box body 102. The active buckle 101 is arranged in the disassembly hole 104 and connected to the bottom plate 103. The active buckle 101 specifically includes a retaining plate 112 and a pin plate 111. The pin plate 111 is arranged vertically, and its middle part is connected to the bottom plate 103, so that the part of the pin plate 111 lower than the bottom plate 103 forms a flange 113 for connecting to the retaining hole 201 at the front end of the base 2. The retaining plate 112 is arranged horizontally, one end is connected to the top of the pin plate 111, and the other end is suspended, and a barb is provided below the suspended end. At the same time, the retaining plate 112 is a horizontal trapezoidal structure, and the short side of the trapezoid is where the retaining plate 112 is connected to the pin plate 111.

[0030] like Figure 3 to Figure 5 As shown, the coil device also includes a yoke 3, a coil 4, a PCBAA installation box 5, a cover 7, a buffer 8 and a clamp 6. The coil 4 is sleeved on the middle pole of the yoke 3, and a mounting groove 105 is provided at the left end of the base plate 103. The two ends of the yoke 3 are stepped structures, and the buffer 8 is respectively installed on both sides of the stepped structure of the yoke 3 and nested in the periphery of the stepped structure. The stepped structure at one end is embedded in the mounting groove 105 by an interference fit, and the other end is fixed to the base plate 103 by a clamp 6 and a bolt. The PCBAA installation box 5 is fixed in the box body 102, and the coil 4 is connected by a wiring piece 9 and a wire. The cover 7 is fixed to the upper end of the box body 102 for fixing the PCBAA installation box 5. An arrow-shaped anti-slip pattern is provided on the upper surface of the cover 7.

[0031] The working principle of this embodiment is as follows: the drawer-type coil device is installed in the base 2 of the contactor, and its installation and removal are achieved by relying on the plastic active buckle 101 with a certain amount of deformation at the front end of the bottom plate 103.

[0032] During installation: push the coil device into the base 2 along the slide rail groove 202 of the base 2. After being pushed to a certain position, the movable buckle 101 will fall into the clamping hole 201 of the base 2, and the assembly is completed.

[0033] During disassembly: lift the movable buckle 101 by hand through the retaining plate 112 to make the pin plate 111 disengage from the clamping hole 201, and pull the movable buckle 101 outward with a little force, and the drawer seat 1 will slide out along the slide rail groove 202, thereby completing the disassembly.

[0034] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A drawer-type coil device for a contactor, the contactor comprising a base (2), characterized in that: The drawer-type coil device comprises a drawer seat (1), the drawer seat (1) is mounted on a base (2), the drawer seat (1) comprises an integrated structure of an active buckle (101), a box body (102) and a bottom plate (103), the box body (102) is arranged above the front end of the bottom plate (103), a disassembly hole (104) is provided at the bottom of the front end of the box body (102), the active buckle (101) is connected to the bottom plate (103) in the disassembly hole (104), and a clamping hole (201) matching with the active buckle (101) is provided at the front end of the base (2); The movable buckle (101) comprises a retaining plate (111) and a pin plate (112); the pin plate (112) is arranged vertically, and its middle part is connected to the bottom plate (103), so that the part of the pin plate (112) lower than the bottom plate (103) forms a flange (113) for connecting to the retaining hole (201) at the front end of the base (2); the retaining plate (111) is arranged horizontally, one end of which is connected to the top end of the pin plate (112) and the other end is suspended in the air.

2. The drawer-type coil device for a contactor according to claim 1, characterized in that: The retaining plate (111) is a transverse trapezoidal structure, and the connection between the retaining plate (111) and the pin plate (112) is the short side of the trapezoid.

3. The drawer-type coil device for a contactor according to claim 1, characterized in that: A barb is provided below the suspended end of the retaining plate (111).

4. The drawer-type coil device for a contactor according to claim 1, characterized in that: It also includes a yoke (3), a coil (4), a PCBA installation box (5) and a clamping plate (6), wherein the coil (4) is sleeved on the middle pole of the yoke (3), a mounting groove (105) is provided at the rear end of the base plate (103), both ends of the yoke (3) are stepped structures, one end is embedded in the mounting groove (105), and the other end is fixed to the base plate (103) through the clamping plate (6), the PCBA installation box (5) is fixed in the box body (102), and the coil (4) is connected through a wiring piece (9) and a wire.

5. The drawer-type coil device for a contactor according to claim 4, characterized in that: It also includes a cover (7), which is fixed to the upper end of the box body (102) and is used to fix the PCBA installation box (5).

6. The drawer-type coil device for a contactor according to claim 5, characterized in that: The upper surface of the cover (7) is provided with an anti-slip pattern and an indication pattern.

7. The drawer-type coil device for a contactor according to claim 4, characterized in that: It also includes a buffer component (8), which is respectively installed on both sides of the stepped structure of the yoke (3) and is nested in the periphery of the stepped structure.

8. The drawer-type coil device for a contactor according to claim 4, characterized in that: The installation groove (105) and the step structure at one end of the yoke (3) are connected by interference fit.

9. The drawer-type coil device for a contactor according to claim 1, characterized in that: The base (2) is provided with a slide rail groove (202), and the bottom of the drawer seat (1) is provided with a corresponding slide rail. The drawer seat (1) slides on the base (2) through the cooperation between the slide rail groove (202) and the slide rail.

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