CN216773145U

CN216773145U - Electromagnetic relay with fall protection component

Info

Publication number: CN216773145U
Application number: CN202123338000.7U
Authority: CN
Inventors: 王伟; 卜红生
Original assignee: Suzhou Obek Auto Parts Co ltd
Current assignee: Suzhou Obek Auto Parts Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-17
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses an electromagnetic relay with a drop protection assembly, which comprises a relay base, a shell and a plurality of wiring leading-out pieces, wherein the wiring leading-out pieces are provided with a plurality of groups along the width direction of the relay base, each group of wiring leading-out pieces comprise a plurality of wiring leading-out pieces, the electromagnetic relay also comprises a plurality of inserting fixing rods, each inserting fixing rod comprises a round rod part and a handheld block part arranged at one end of the round rod part, each wiring leading-out piece is provided with an inserting hole, the inserting hole is of a round through hole structure, the aperture of the inserting hole is the same as the diameter of the round rod part, the relay base is provided with a convex block part, the convex block part is provided with a plurality of inserting holes, and the round rod part of each inserting fixing rod passes through each inserting hole of the plurality of wiring leading-out pieces in the same group and one inserting hole of the convex block part; the utility model is provided with the inserting fixing rod, and the wire leading-out piece cannot retract into the shell due to the limiting function of the inserting fixing rod, so that the problem of infirm connection between the wire leading-out piece and the coil cannot occur.

Description

Electromagnetic relay with fall protection component

Technical Field

The utility model relates to the field of electromagnetic relays, in particular to an electromagnetic relay with a drop protection assembly.

Background

The electromagnetic relay is a switch which utilizes an electromagnet to control the on-off of a working circuit, is widely applied to an automatic control circuit, and has the functions of automatic adjustment, safety protection, circuit conversion and the like. The base of the electromagnetic relay is provided with a through hole for the lead-out sheet of the electromagnetic relay to pass through, and the lead-out sheet passes through the through hole and then is connected with the base of the electromagnetic relay through glue. In each terminal leading-out piece of the electromagnetic relay, the connection between the terminal leading-out piece connected with the coil leading-out wire and the coil leading-out wire is welded through tin, when the terminal leading-out piece is subjected to large impact force due to falling, the terminal leading-out piece is easy to retract into the shell, and at the moment, the problem of open welding of welding spots of the terminal leading-out piece and the coil leading-out wire possibly occurs due to sudden action of the terminal leading-out piece, so that the connection between the terminal leading-out piece and the coil is caused to be in a problem. And the connection between the terminal leading-out sheet and the base of the electromagnetic relay is loosened, so that the terminal leading-out sheet cannot be normally inserted into a special socket of the electromagnetic relay. In order to solve the above problems, the present applicant proposed an electromagnetic relay having a drop protection assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electromagnetic relay with a falling protection assembly, aiming at solving the problem that a wiring leading-out piece of the existing electromagnetic relay is easy to retract into a shell due to falling impact.

The utility model is realized by the following steps: an electromagnetic relay with a drop protection assembly comprises a relay base, a shell and a plurality of wiring leading-out pieces, wherein through holes for the wiring leading-out pieces to penetrate through are formed in the relay base, a plurality of groups of wiring leading-out pieces are arranged in the width direction of the relay base, each group of wiring leading-out pieces comprise a plurality of wiring leading-out pieces, and the plurality of wiring leading-out pieces in the same group are sequentially arranged in the length direction of the relay base; the relay base is provided with a plurality of inserting fixing rods, the number of the inserting fixing rods is the same as the group number of the wiring leading-out pieces, each inserting fixing rod comprises a round rod part and a handheld block part arranged at one end of the round rod part, each wiring leading-out piece is provided with an inserting hole, each inserting hole is of a round through hole structure, the diameter of each inserting hole is the same as that of the round rod part, each relay base is provided with a convex block part, each convex block part is provided with a plurality of inserting holes, the number of the inserting holes is the same as that of the group number of the wiring leading-out pieces, each inserting hole is respectively aligned with the inserting hole of each group of the wiring leading-out pieces one by one along the length direction of the relay base, and the diameter of each inserting hole is the same as that of the inserting hole; the handheld block part of the inserting and fixing rod cannot penetrate through the jacks, and the round rod part of the inserting and fixing rod penetrates through each jack of the plurality of wiring leading-out pieces in the same group and one inserting hole of the lug part.

Furthermore, the wiring leading-out piece is provided with a thickening part which can not pass through a through hole arranged on the relay base and used for the wiring leading-out piece to penetrate out.

Furthermore, the upper end of the wiring leading-out piece is provided with a connecting hole which is of a circular through hole structure.

Furthermore, one end, away from the handheld block part, of the round rod part of the inserting fixing rod is provided with a chamfer or fillet structure.

Furthermore, a rubber sleeve is arranged in a through hole which is arranged on the relay base and used for the penetration of each wiring leading-out piece, a through hole which is used for the penetration of the wiring leading-out piece is arranged on the rubber sleeve, and when the wiring leading-out piece penetrates through the rubber sleeve, the rubber sleeve clamps the wiring leading-out piece.

Furthermore, both ends of the lower end of the wire connection leading-out piece are provided with fillet structures.

Compared with the prior art, the utility model has the following advantages:

1. the utility model is provided with the inserting fixing rod which passes through the inserting hole of the projection part of the relay base and the inserting hole of the wiring leading-out piece, when the wiring leading-out piece is impacted due to falling, the wiring leading-out piece cannot retract into the shell due to the limiting function of the inserting fixing rod, and the problem of infirm connection between the wiring leading-out piece and the coil cannot occur.

2. The through hole that supplies each terminal to draw forth piece to wear out that sets up on the relay base is provided with to glue and is equipped with the rubber sleeve, and when supplying the terminal to draw forth the piece and pass in by the rubber sleeve, the rubber sleeve presss from both sides tight terminal to draw forth the piece, can make the terminal to draw forth the piece and do not take place to rock.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an external structural view of an electromagnetic relay with a drop protection assembly according to the present invention;

FIG. 2 is a front view of an electromagnetic relay with a drop protection assembly of the present invention with the housing removed;

FIG. 3 is a side view of an electromagnetic relay with a drop protection assembly of the present invention with the housing removed;

FIG. 4 is a schematic structural view of the structure shown in FIG. 3 with the fixing rod removed;

fig. 5 is a schematic view of a terminal tab of an electromagnetic relay having a drop protection assembly according to the present invention;

fig. 6 is a schematic structural view of a plug-in fixing lever of an electromagnetic relay with a drop protection assembly according to the present invention.

In the figure: 1. a relay base; 2. a housing; 3. a wiring leading-out piece; 301. a jack; 302. a thickening part; 303. connecting holes; 4. inserting a fixed rod; 401. a round bar part; 402. the block part is held by hand.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, 2 and 3, an electromagnetic relay with a drop protection assembly includes a relay base 1, a housing 2 and 9 terminal tabs 3, wherein the relay base 1 is provided with through holes for the terminal tabs 3 to pass through. The piece 3 is drawn forth in the wiring along relay base 1's width direction is provided with three groups, and every group wiring is drawn forth piece 3 and is included three wiring and draw forth piece 3, and three wiring that is with a set of is drawn forth piece 3 and is set gradually along relay base 1's length direction.

Referring to fig. 2, 3, 4, 5 and 6, the device further includes three insertion fixing rods 4, and each insertion fixing rod 4 includes a circular rod portion 401 and a hand-held block portion 402 disposed at one end of the circular rod portion 401. Be provided with jack 301 on the piece 3 is drawn forth in the wiring, jack 301 is circular through-hole structure, the aperture of jack 301 is the same with the diameter of round rod portion 401 or slightly is greater than the diameter of round rod portion 401, be provided with lug portion 101 on the relay base 1, be provided with a plurality of spliced eyes on lug portion 101, the quantity of spliced eye is the same with the group number of the piece 3 is drawn forth in the wiring, each spliced eye aligns along relay base 1's length direction one by one with jack 301 of every group piece 3 is drawn forth in the wiring respectively, the aperture of spliced eye is the same with the aperture of jack 301. The hand-held block portion 402 of the plug-in fixing lever 4 cannot pass through the insertion hole 301, and the round bar portion 401 of the plug-in fixing lever 4 passes through each of the insertion holes 301 of the plurality of terminal tabs 3 of the same group and one of the insertion holes of the projection portion 101. One end, far away from the handheld block part 402, of the round rod part 401 of the plugging fixing rod 4 is provided with a chamfer or fillet structure, so that the round rod part 401 of the plugging fixing rod 4 can more conveniently pass through each jack 301 of each terminal leading-out piece 3, and the installation of the plugging fixing rod 4 is facilitated. Be provided with on the wiring and draw forth piece 3 and add thick portion 302, add thick portion 302 and can not pass in the through-hole that supplies wiring to draw forth piece 3 and wear out by setting up on relay base 1, when drawing piece 3 with the wiring into by the jack on relay base 1, owing to add thick portion 302's setting, insert until when can not insert again, the lower extreme that adds thick portion 302 this moment contacts with relay base 1's upper end, each jack 301 of three wiring of same set of drawing piece 3 aligns along relay base 1's length direction, make the round bar portion 401 of grafting dead lever 4 can pass in proper order in each jack 301 of three wiring drawing piece 3 of same set of by. The upper end of the wire connection leading-out piece 3 is provided with a connecting hole 303, and the connecting hole 303 is of a circular through hole structure. When the terminal leading-out piece 3 is connected with the electric wire, the copper wire of the electric wire is firstly penetrated through the connecting hole 303 and is simply knotted and fixed, and then tin is used for welding and reinforcing, so that the terminal leading-out piece 3 is more firmly connected with the electric wire.

The working principle of the utility model is as follows: round rod part 401 of the plug-in fixing rod 4 is penetrated through each jack 301 of a plurality of terminal leading-out pieces 3 in the same group and one plug-in hole of the convex block part 101, which is equivalent to that the plug-in fixing rod 4 is fixed by the relay base 1, when the terminal leading-out pieces 3 are impacted because of falling, the terminal leading-out pieces 3 can not retract into the shell due to the limiting function of the plug-in fixing rod 4, and the problem of connection infirm between the terminal leading-out pieces 3 and the coil can not occur.

In this embodiment, set up in the through-hole that supplies each wiring of setting up on relay base 1 and draw forth piece 3 and wear out and glue and be equipped with the rubber sleeve, be provided with the through-hole that supplies the wiring to draw forth piece 3 and pass on the rubber sleeve, when supplying the wiring to draw forth piece 3 and pass in by the rubber sleeve, the tight wiring of rubber sleeve clamp draws forth piece 3, in order to reduce the installation of machining precision and the grafting dead lever 4 of being convenient for, the aperture that makes jack 301 and spliced eye slightly is greater than the diameter of pole portion 401, through the setting of rubber sleeve, can make wiring draw forth piece 3 and not take place to rock. In order to facilitate the wire leading-out piece 3 to pass through the rubber sleeve, two ends of the lower end of the wire leading-out piece 3 are provided with a fillet structure.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The electromagnetic relay with the falling protection assembly comprises a relay base (1), a shell (2) and a plurality of wiring leading-out pieces (3), wherein through holes for the wiring leading-out pieces (3) to penetrate out are formed in the relay base (1), and the electromagnetic relay is characterized in that the wiring leading-out pieces (3) are provided with a plurality of groups along the width direction of the relay base (1), each group of wiring leading-out pieces (3) comprises a plurality of wiring leading-out pieces (3), and the wiring leading-out pieces (3) of the same group are sequentially arranged along the length direction of the relay base (1); also comprises a plurality of inserting fixing rods (4), the number of the inserting fixing rods (4) is the same as the number of the groups of the terminal leading-out sheets (3), the inserting and fixing rod (4) comprises a round rod part (401) and a hand-held block part (402) arranged at one end of the round rod part (401), the wiring leading-out piece (3) is provided with an insertion hole (301), the insertion hole (301) is of a circular through hole structure, the diameter of the hole (301) is the same as that of the round rod part (401), a lug boss part (101) is arranged on the relay base (1), the lug part (101) is provided with a plurality of inserting holes, the number of the inserting holes is the same as the number of groups of the terminal leading-out pieces (3), each inserting hole is respectively aligned with the jack (301) of each group of terminal leading-out pieces (3) one by one along the length direction of the relay base (1), and the aperture of each inserting hole is the same as that of the jack (301); the handheld block part (402) of the inserting and fixing rod (4) cannot penetrate through the insertion hole (301), and the round rod part (401) of the inserting and fixing rod (4) penetrates through the insertion holes (301) of the plurality of wire leading-out sheets (3) in the same group and one insertion hole of the lug part (101).

2. The electromagnetic relay with the fall protection assembly according to claim 1, wherein the terminal lead-out piece (3) is provided with a thickened portion (302), and the thickened portion (302) cannot pass through a through hole provided in the relay base (1) for the terminal lead-out piece (3) to pass through.

3. The electromagnetic relay with the fall protection assembly according to claim 2, wherein the upper end of the terminal tab (3) is provided with a connection hole (303), and the connection hole (303) has a circular through hole structure.

4. An electromagnetic relay with a fall protection assembly according to any one of claims 1 to 3, wherein the end of the round bar part (401) of the plug-in fixing bar (4) remote from the hand-held block part (402) is provided with a chamfer or a fillet structure.

5. The electromagnetic relay with the fall protection assembly according to claim 4, wherein a rubber sleeve is adhered to a through hole provided on the relay base (1) and through which each wiring leading-out piece (3) passes, a through hole through which the wiring leading-out piece (3) passes is provided on the rubber sleeve, and when the wiring leading-out piece (3) passes through the rubber sleeve, the rubber sleeve clamps the wiring leading-out piece (3).

6. The electromagnetic relay with the fall protection assembly according to claim 5, wherein both ends of the lower end of the terminal tab (3) are provided with a rounded corner structure.