Clamping structure and relay

Abstract

The utility model provides a clamping structure and a relay, and the clamping structure comprises an installation pedestal and a clamping unit disposed on the installation pedestal. A limiting groove and a mounting bottom edge are arranged at the bottom of the mounting base, and a mounting groove communicated with the limiting groove is formed in the mounting bottom edge; the clamping unit comprises an elastic piece and a clamping piece, the clamping piece is movably connected in the mounting groove, and the clamping piece is provided with a clamping end, a limiting end and an elastic pressing part arranged between the clamping end and the limiting end; and the elastic piece elastically presses the elastic pressing part, so that the clamping end extends out of the limiting groove, and the limiting end protrudes out of the mounting groove. By simplifying the structure of the clamping unit, only the elastic part is utilized to elastically press the elastic pressing part of the clamping part, so that the clamping end extends out of the limiting groove, the clamping action can be completed by utilizing the limiting end to clamp the positioning bottom plate, the structure is simple, time and labor are saved during assembly, the assembly efficiency is conveniently improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a clamping structure and a relay. Background Art

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in an electrical output circuit when a change in the input quantity reaches a specified level. It provides an interactive relationship between the control system and the controlled system. Commonly used in automated control circuits, it acts as an "automatic switch" that uses a small current to control a large current. Therefore, it performs functions such as automatic regulation, safety protection, and circuit switching within circuits. When installing a relay, it is often used in conjunction with a relay base.

[0003] The Chinese utility model patent with publication number CN216957890U discloses a relay base that is easy to install, including a shell, a connection groove is opened on the outer wall of the top of the shell, a circular through hole is opened on the inner wall of the bottom of the connection groove, a guide cylinder is fixed to the inner wall of the circular through hole, a threaded rod is slidably connected to the inner wall of the guide cylinder, a pad is connected to the outer wall of the threaded rod through a thread, a guide groove is opened on the outer wall of the bottom of the shell, a movable block is slidably connected to the inner wall of the guide groove, and fixing buckles are respectively fixed to the outer wall of one side of the movable block and the pad.

[0004] The clamping structure of the above relay is composed of a plurality of parts, which is time-consuming and labor-intensive to assemble, and is not convenient for improving assembly efficiency, resulting in high production costs. Utility Model Content

[0005] Based on this, in order to solve the problem that the above-mentioned relay's clip-on structure is composed of multiple parts, which is time-consuming and labor-intensive to assemble, inconvenient to improve assembly efficiency, and has high production costs, the utility model provides a clip-on structure and a relay, and its specific technical solutions are as follows:

[0006] On the one hand, a clamping structure includes a mounting base and a clamping unit arranged on the mounting base; the bottom of the mounting base is provided with a limiting groove and a mounting bottom edge, and the mounting bottom edge is provided with a mounting groove connected to the limiting groove; the clamping unit includes an elastic member and a clamping member, the clamping member is movably connected in the mounting groove, and the clamping member is provided with a clamping end, a limiting end, and a spring-pressing portion arranged between the clamping end and the limiting end; the elastic member presses the spring-pressing portion to make the clamping end extend out of the limiting groove, and the limiting end protrudes out of the mounting groove.

[0007] The above-mentioned clamping structure simplifies the structure of the clamping unit and only uses the elastic member to press the pressing part of the clamping member, so that the clamping end extends out of the limiting groove. The clamping action can be completed by clamping the positioning base plate with the limiting end. The structure is simple, the assembly is time-saving and labor-saving, and it is convenient to improve assembly efficiency and reduce production costs.

[0008] Furthermore, protruding flanges are provided on both side surfaces of the installation groove, and the protruding flanges on both sides form a guide groove, and the clamping member is provided with a guide side edge adapted to the guide groove.

[0009] Furthermore, the protruding flange is provided with a mounting notch, and the guide side edge is provided with a mounting recess adapted to the mounting notch.

[0010] Furthermore, the mounting bottom edge is provided with a pressing block, the elastic pressing portion is a pressing groove adapted to the pressing block, and the elastic member is a spring member arranged in the pressing groove.

[0011] Furthermore, the limiting end is provided with a stretching hole, and the clamping end is provided with a bevel flange.

[0012] Furthermore, the limiting groove is provided with a positioning semicircular arc.

[0013] On the other hand, a relay includes a relay body and a clamping structure; the relay body is mounted on the mounting base.

[0014] Furthermore, the relay body includes a mounting base and a control component arranged on the mounting base; the control component includes an electromagnet, an armature assembly, a first contact pin, a second contact pin, a contact piece arranged on the armature assembly, and a reset spring, and the contact piece is arranged between the first contact pin and the second contact pin; when the electromagnet is in an energized state, the armature assembly moves toward the electromagnet, and the contact piece contacts the first contact pin; when the electromagnet is in a de-energized state, the reset spring presses the armature assembly to move away from the electromagnet, and the contact piece contacts the second contact pin.

[0015] Furthermore, the armature assembly includes an L-shaped bracket, a movable plate movably connected to the L-shaped bracket, and an insulating plate arranged on the movable plate; the contact piece is arranged on the insulating plate, and the return spring presses the movable plate away from the electromagnet.

[0016] Furthermore, the relay body also includes a mounting shell and a locking member for locking the mounting shell to the mounting base; the locking member is a bending bar, which has a plug-in end plugged into the mounting base, a positioning end adapted to the outer surface of the mounting shell, and a bending portion arranged at the plug-in end and the positioning end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a structural diagram of the clamping structure according to one embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the structure of the relay according to one embodiment of the present invention;

[0020] Figure 3 This is a structural diagram of a clamping member according to an embodiment of the present invention;

[0021] Figure 4 It is a structural diagram of the relay body according to one embodiment of the present utility model;

[0022] Figure 5 It is a structural diagram of a relay described in an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Mounting base; 2. Snap-on unit; 3. Relay body; 4. Mounting housing; 5. Locking piece;

[0025] 11. Limiting groove; 12. Installation bottom edge;

[0026] 121, installation groove;

[0027] 21. Elastic member; 22. Snap-fit ​​member;

[0028] 221. Clamping end; 222. Limiting end; 223. Spring pressing part;

[0029] 31. Mounting base; 32. Control component; 33. Electromagnet; 34. Armature assembly; 35. First contact pin; 36. Second contact pin; 37. Contact piece; 38. Return spring;

[0030] 341. L-shaped bracket; 342. Movable plate; 343. Insulation plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The "first" and "second" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0035] On the one hand, if Figure 1 and Figure 2 、 Figure 3 As shown, a clamping structure in one embodiment of the present invention includes a mounting base 1 and a clamping unit 2 arranged on the mounting base 1; the bottom of the mounting base 1 is provided with a limiting groove 11 and a mounting bottom edge 12, and the mounting bottom edge 12 is provided with a mounting groove 121 connected to the limiting groove 11; the clamping unit 2 includes an elastic member 21 and a clamping member 22, and the clamping member 22 is movably connected in the mounting groove 121, and the clamping member 22 is provided with a clamping end 221, a limiting end 222, and a spring-pressing portion 223 arranged between the clamping end 221 and the limiting end 222; the elastic member 21 presses the spring-pressing portion 223, so that the clamping end 221 extends out of the limiting groove 11, and the limiting end 222 protrudes from the mounting groove 121.

[0036] The above-mentioned clamping structure simplifies the structure of the clamping unit 2 and only uses the elastic member 21 to press the pressing portion 223 of the clamping member 22, so that the clamping end 221 extends out of the limiting groove 11. The clamping action can be completed by clamping the positioning base plate with the limiting end 222. The structure is simple, the assembly is time-saving and labor-saving, and it is convenient to improve assembly efficiency and reduce production costs.

[0037] In one embodiment, the mounting groove 121 is provided with protruding flanges on both sides, forming a guide groove, and the clamping member 22 is provided with guide side edges adapted to fit into the guide groove. In this way, the guide side edges slide within the guide groove, thereby preventing the clamping member 22 from falling off the mounting base 1.

[0038] In one embodiment, the protruding flange is provided with a mounting notch, and the guide side edge is provided with a mounting recess that fits the mounting notch. Thus, by passing the guide side edge through the mounting notch and the protruding flange through the mounting recess, the clip 22 can be pressed into the mounting groove 121 at a predetermined position, simplifying installation and fully utilizing the limiting function of the guide side edge within the guide groove.

[0039] In one embodiment, the mounting bottom edge 12 is provided with a pressing protrusion, the pressing portion 223 is a pressing recess adapted to fit the pressing protrusion, and the elastic member 21 is a spring member disposed within the pressing recess. Thus, one end of the spring member presses against the pressing protrusion, while the other end presses against the recess wall, causing the engaging end 221 to extend from the retaining groove 11.

[0040] In one embodiment, the limiting end 222 is provided with a stretching hole, and the clamping end 221 is provided with a beveled flange. In this way, the beveled flange can be clamped into a smaller clamping gap to ensure clamping efficiency.

[0041] In one embodiment, the limiting groove 11 is provided with a positioning semicircular arc. Specifically, the clamping structure further includes a positioning base plate (not shown), which is provided with a mounting ridge adapted to the limiting groove 11, and the mounting ridge is provided with a clamping groove adapted to the clamping end 221 and a positioning hole adapted to the positioning semicircular arc.

[0042] On the other hand, Figure 2 、 Figure 4 and Figure 5 As shown, a relay in an embodiment of the present invention includes a relay body 3 and a clamping structure; the relay body 3 is installed on the mounting base 1.

[0043] In one embodiment, the relay body 3 includes a mounting base 31 and a control component 32 disposed on the mounting base 31. The control component 32 includes an electromagnet 33, an armature assembly 34, a first contact 35, a second contact 36, a contact piece 37 disposed on the armature assembly 34, and a return spring 38. The contact piece 37 is disposed between the first contact 35 and the second contact 36. Specifically, the electromagnet 33 is a normally closed electromagnet, i.e., when energized, the magnetic portion of the electromagnet exhibits a relatively high magnetic property. Thus, when the electromagnet 33 is energized, the return spring 38 is stretched, causing the armature assembly 34 to move toward the electromagnet 33, and the contact piece 37 to contact the first contact 35. When the electromagnet 33 is de-energized, the return spring 38 biases the armature assembly 34 to move away from the electromagnet 33, and the contact piece 37 to contact the second contact 36.

[0044] In one embodiment, the first contact pin 35 , the second contact pin 36 and the contact sheet 37 are all conductive copper sheets.

[0045] In one embodiment, the armature assembly 34 includes an L-shaped bracket 341, a movable plate 342 movably connected to the L-shaped bracket 341, and an insulating plate 343 disposed on the movable plate 342. The contact piece 37 is disposed on the insulating plate 343, and the return spring 38 biases the movable plate 342 away from the electromagnet 33. Specifically, the movable plate 342 is made of a rigid material that can be attracted by a magnet.

[0046] In one embodiment, the relay body 3 further includes a mounting housing 4 and a locking member 5 for locking the mounting housing 4 to the mounting base 31; the locking member 5 is a bending bar having a plug-in end that is plugged into the mounting base 1, a positioning end that adapts to the outer surface of the mounting housing 4, and a bending portion provided between the plug-in end and the positioning end. Specifically, the bending bar is further provided with a toggle portion that facilitates the locking action. Thus, after the plug-in end of the bending bar is plugged into the mounting base 1, the mounting housing 4 is fitted onto the mounting base 31, the bending bar is rotated to cause the positioning end to be pressed against the mounting housing 4, and the mounting housing 4 is locked to the mounting base 31 by utilizing the elastic deformation of the bending portion.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A snap-fit ​​structure, characterized in that: It comprises a mounting base (1) and a clamping unit (2) arranged on the mounting base (1); The bottom of the mounting base (1) is provided with a limiting groove (11) and a mounting bottom edge (12), and the mounting bottom edge (12) is provided with a mounting groove (121) communicating with the limiting groove (11); The clamping unit (2) comprises an elastic member (21) and a clamping member (22), wherein the clamping member (22) is movably connected in the mounting groove (121), and the clamping member (22) is provided with a clamping end (221), a limiting end (222), and a spring-pressing portion (223) arranged between the clamping end (221) and the limiting end (222); The elastic member (21) presses the pressing portion (223), causing the clamping end (221) to extend out of the limiting groove (11), and the limiting end (222) to protrude out of the installation groove (121).

2. A clamping structure according to claim 1, characterized in that: Both side surfaces of the installation groove (121) are provided with protruding flanges, and the protruding flanges on both sides form a guide groove, and the clamping member (22) is provided with a guide side edge adapted to the guide groove.

3. A clamping structure according to claim 2, characterized in that: The protruding flange is provided with a mounting notch, and the guide side edge is provided with a mounting recess adapted to the mounting notch.

4. The clamping structure according to claim 1, characterized in that: The mounting bottom edge (12) is provided with a pressing protrusion, the elastic pressing portion (223) is a pressing slot adapted to the pressing protrusion, and the elastic member (21) is a spring member arranged in the pressing slot.

5. The clamping structure according to claim 1, characterized in that: The limiting end (222) is provided with a stretching hole, and the clamping end (221) is provided with a bevel flange.

6. The clamping structure according to claim 1, characterized in that: The limiting groove (11) is provided with a positioning semicircular arc.

7. A relay, characterized in that: It comprises a relay body (3) and a clamping structure as claimed in any one of claims 1 to 6; The relay body (3) is mounted on the mounting base (1).

8. A relay according to claim 7, characterized in that: The relay body (3) includes a mounting base (31) and a control component (32) arranged on the mounting base (31); The control component (32) includes an electromagnet (33), an armature assembly (34), a first contact pin (35), a second contact pin (36), a contact piece (37) arranged on the armature assembly (34), and a return spring (38), wherein the contact piece (37) is arranged between the first contact pin (35) and the second contact pin (36); When the electromagnet (33) is in an energized state, the armature assembly (34) moves toward the electromagnet (33), and the contact piece (37) contacts the first contact pin (35); When the electromagnet (33) is in a power-off state, the return spring (38) presses the armature assembly (34) to move in a direction away from the electromagnet (33), and the contact piece (37) contacts the second contact pin (36).

9. A relay according to claim 8, characterized in that: The armature assembly (34) includes an L-shaped bracket (341), a movable plate (342) movably connected to the L-shaped bracket (341), and an insulating plate (343) disposed on the movable plate (342); The contact piece (37) is arranged on the insulating plate (343), and the return spring (38) presses the movable plate (342) away from the electromagnet (33).

10. The relay according to claim 8, characterized in that: The relay body (3) further includes a mounting housing (4) and a locking member (5) for locking the mounting housing (4) to the mounting base (31); The locking member (5) is a bent bar having a plug-in end plugged into the mounting base (1), a positioning end adapted to the outer surface of the mounting shell (4), and a bent portion provided between the plug-in end and the positioning end.

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