CN212380369U

CN212380369U - Limiting type electromagnetic relay

Info

Publication number: CN212380369U
Application number: CN202021049874.3U
Authority: CN
Inventors: 黄成贵
Original assignee: Ningbo Xinchuangzhi Electrical Appliance Co ltd
Current assignee: Ningbo Xinchuangzhi Electrical Appliance Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-19
Anticipated expiration: 2030-06-09

Abstract

The utility model provides a spacing formula electromagnetic relay belongs to electromagnetic relay technical field. The limiting electromagnetic relay comprises a shell, a core body assembly, an elastic adjusting assembly and a contact assembly. The core body subassembly includes bottom plate, coil core, montant and armature plate, bottom plate fixed mounting in the inside bottom of shell, coil core with the montant all install in the bottom plate upper surface, armature plate rotate set up in the montant top, elasticity adjusting part includes extension spring and flexible regulating part. The utility model discloses the extension spring is stretched. The adjusting bolt is rotated to drive the connecting sleeve to pull the tension spring, so that the elasticity of the tension spring is adjusted and changed; the return elasticity of the armature plate is thereby adjusted; the end part of the armature plate can be stably contacted with the contact above all the time.

Description

Limiting type electromagnetic relay

Technical Field

The utility model relates to an electromagnetic relay field particularly, relates to a spacing formula electromagnetic relay.

Background

A relay is an electric appliance in which a controlled amount is changed in a predetermined step change in an electric output circuit. It has an interactive relationship between the control system and the controlled system. Are commonly used in automated control circuits.

When the electromagnetic relay is used, because the electromagnetic coil attracts the armature for a long time, the elasticity of the spring is insufficient, and the return elasticity of the armature driven by the spring is insufficient; the contact at the end of the armature is difficult to reset to the original position, so that the electromagnetic relay is poor in contact after being reset.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the utility model provides a spacing formula electromagnetic relay aims at improving solenoid and attracts armature for a long time, easily leads to spring force not enough, and the spring drives the problem that armature elasticity is not enough that resets.

The utility model discloses a realize like this:

the utility model provides a spacing formula electromagnetic relay, including shell, core subassembly, elasticity adjusting part and contact subassembly.

The core body component comprises a bottom plate, a coil iron core, a vertical rod and an armature plate, the bottom plate is fixedly arranged at the bottom end inside the shell, the coil iron core and the vertical rod are both arranged on the upper surface of the bottom plate, the armature plate is rotatably arranged at the top end of the vertical rod, the elastic adjusting component comprises a tension spring and a telescopic adjusting piece, the top end of the tension spring is connected to the bottom end of one end of the armature plate, the telescopic adjusting piece is penetratingly arranged on one side of the bottom of the shell, the bottom end of the tension spring is connected to the top end of the telescopic adjusting piece, the contact component comprises a supporting seat, a second contact block, a limiting rod, a limiting end cover and a spring, the top end of the limiting rod is fixedly connected to the bottom end of the contact component, the bottom end of the limiting rod movably penetrates through the supporting, the contact assemblies are arranged in two groups, and the two groups of contact assemblies are respectively arranged on two sides of the contact end of the armature plate.

The utility model discloses an in one embodiment, flexible regulating part includes adapter sleeve and adjusting bolt, the adapter sleeve top connect in the extension spring bottom, adjusting bolt's screw rod activity run through in the shell, just adjusting bolt's rod end spiro union in the adapter sleeve bottom.

In an embodiment of the present invention, the connecting sleeve is provided with a through slot, and the rod end of the adjusting bolt extends to the inside of the through slot.

The utility model discloses an in the embodiment, threaded hole is seted up to the adapter sleeve bottom, adjusting bolt's rod end with screw hole spiro union cooperation.

In an embodiment of the present invention, the supporting seat is provided with a groove on one side close to the armature plate, and the second contact block is slidably disposed inside the groove.

The utility model discloses an in one embodiment, the spout has all been seted up to the recess both sides, second contact piece both sides all are provided with the slider, the slider with spout sliding fit.

In an embodiment of the present invention, the outer housing is provided with a joint member, and the joint member is provided with three groups.

In an embodiment of the present invention, three sets of the connectors are respectively connected with wires between the armature plate and the top portion of one side of the second contact block.

In an embodiment of the present invention, the armature plate includes a transverse plate, an armature block and a first contact block, and the transverse plate and the first contact block are respectively connected to two ends of the armature block.

In an embodiment of the invention, a ceramic plate is arranged between the armature block and the first contact block.

The utility model has the advantages that: when the limiting electromagnetic relay is used, the coil iron core is electrified to adsorb the armature block in the armature plate, so that the end part of the armature plate is contacted with the second contact block below; at the same time, the tension spring is stretched. The adjusting bolt is rotated to drive the connecting sleeve to pull the tension spring, so that the elasticity of the tension spring is adjusted and changed; the return elasticity of the armature plate is thereby adjusted; the end part of the armature plate can be stably contacted with the contact above all the time.

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 a schematic structural diagram of a limit type electromagnetic relay according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an elastic adjustment assembly according to an embodiment of the present invention;

fig. 3 is a schematic view of a screw connection structure of an adjusting bolt and a connecting sleeve according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a contact assembly according to an embodiment of the present invention.

In the figure: 10-a housing; 20-a core assembly; 210-a backplane; 220-a coil core; 230-a vertical rod; 240-armature plate member; 241-a transverse plate; 242-armature block; 243-first contact block; 244-ceramic plate; 30-an elastic adjustment assembly; 310-a tension spring; 320-a telescoping adjustment member; 321-connecting sleeves; 322-adjusting bolts; 323-through slot; 324-a threaded hole; 40-a contact assembly; 410-a support base; 420-a second contact block; 430-a limiting rod; 440-a limit end cap; 450-a spring; 460-a groove; 470-a chute; 480-a slide block; 490-a joint piece; 491-conducting wire.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a position-limiting electromagnetic relay, which includes a housing 10, a core assembly 20, an elastic adjustment assembly 30 and a contact assembly 40.

Wherein the housing 10 is used for mounting the supporting core assembly 20, the elastic adjustment assembly 30 and the contact assembly 40. The elastic adjusting component 30 can adjust the elasticity of the machine core, so that stable elasticity is brought to the core component 20, and even if the coil core 220 can adsorb the armature for a plurality of times for a long time, stable contact between contacts can be ensured by adjusting the elasticity of the elastic adjusting component 30.

Referring to fig. 1, the core assembly 20 includes a bottom plate 210, a coil core 220, a vertical rod 230 and an armature plate 240, the bottom plate 210 is fixedly installed at the bottom end of the interior of the housing 10, the coil core 220 and the vertical rod 230 are both installed on the upper surface of the bottom plate 210, and the armature plate 240 is rotatably installed at the top end of the vertical rod 230. The armature plate 240 includes a transverse plate 241, an armature block 242, and a first contact block 243, and the transverse plate 241 and the first contact block 243 are connected to two ends of the armature block 242, respectively. A ceramic plate 244 is disposed between the armature block 242 and the first contact block 243; the ceramic plate 244 is used for insulation.

Referring to fig. 2 and 3, the elastic adjustment assembly 30 includes a tension spring 310 and a telescopic adjustment member 320, wherein a top end of the tension spring 310 is connected to a bottom end of the armature plate 240, the telescopic adjustment member 320 is installed to penetrate through a bottom side of the housing 10, and a bottom end of the tension spring 310 is connected to a top end of the telescopic adjustment member 320. The telescopic adjusting piece 320 comprises a connecting sleeve 321 and an adjusting bolt 322, wherein the top end of the connecting sleeve 321 is connected to the bottom end of the tension spring 310; the connecting sleeve 321 and the tension spring 310 are fixed by welding. The screw of the adjusting bolt 322 movably penetrates the housing 10, and the rod end of the adjusting bolt 322 is screwed to the bottom of the connecting sleeve 321. The connecting sleeve 321 is provided with a through notch 323 inside, and the rod end of the adjusting bolt 322 extends to the inside of the through notch 323. The bottom of the connecting sleeve 321 is provided with a threaded hole 324, and the rod end of the adjusting bolt 322 is in threaded fit with the threaded hole 324; the adjusting bolt 322 is used for rotating and adjusting the elasticity of the tension spring 310.

Referring to fig. 4, the contact assembly 40 includes a supporting base 410, a second contact block 420, a limiting rod 430, a limiting end cap 440 and a spring 450, wherein the top end of the limiting rod 430 is fixedly connected to the bottom end of the contact assembly 40, the bottom end of the limiting rod 430 movably penetrates through the supporting base 410, and the limiting end cap 440 is mounted at the bottom end of the limiting rod 430; the limiting end cover 440 and the limiting rod 430 are fixed through screw connection; and the spring 450 is sleeved outside the limiting rod 430, two sets of contact assemblies 40 are arranged, the two sets of contact assemblies 40 are respectively installed on two sides of the contact end of the armature plate 240, and the contact assemblies 40 are fixed on the inner wall of the shell 10. A groove 460 is formed on one side of the supporting base 410 close to the armature plate 240, and the second contact block 420 is slidably disposed in the groove 460. The both sides of recess 460 have all been seted up spout 470, and second contact block 420 both sides all are provided with slider 480, slider 480 and spout 470 sliding fit for second contact block 420 can be at the inside stable removal of recess 460. The outer part of the shell 10 is provided with joint pieces 490, and the joint pieces 490 are provided with three groups; the connector 490 is used for connecting with an external wire terminal. Three sets of connector members 490 have wires 491 connected between the armature plate member 240 and the top of one side of the second contact block 420; the wire 491 is a soft wire.

The working principle of the limiting electromagnetic relay is as follows: in use, the coil core 220 is energized to attract the armature block 242 in the armature plate 240 such that the first contact block 243 at the end of the armature plate 240 contacts the second contact block 420 below; at the same time, the tension spring 310 is stretched. By adjusting the telescopic adjusting member 320, the return elastic force of the tension spring 310 is adjusted and changed, that is, by rotating the adjusting bolt 322, the adjusting bolt 322 drives the connecting sleeve 321 to pull the tension spring 310, so that the elastic force of the tension spring 310 is adjusted and changed; so that the return spring of the armature plate 240 is adjusted. The second contact block 420 in the contact assembly 40 is elastically arranged by the spring 450, so that the first contact block 243 at the end of the armature plate 240 can be contacted with the second contact block 420 more tightly, and the problem of poor contact when the contacts are contacted is prevented.

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. A limit type electromagnetic relay is characterized by comprising

A housing (10);

the core assembly (20) comprises a bottom plate (210), a coil core (220), a vertical rod (230) and an armature plate (240), the bottom plate (210) is fixedly installed at the bottom end inside the shell (10), the coil core (220) and the vertical rod (230) are both installed on the upper surface of the bottom plate (210), and the armature plate (240) is rotatably arranged at the top end of the vertical rod (230);

the elastic adjusting assembly (30) comprises a tension spring (310) and a telescopic adjusting piece (320), the top end of the tension spring (310) is connected to the bottom of one end of the armature plate (240), the telescopic adjusting piece (320) is installed on one side of the bottom of the shell (10) in a penetrating mode, and the bottom end of the tension spring (310) is connected to the top end of the telescopic adjusting piece (320);

the contact assembly (40) comprises a supporting seat (410), a second contact block (420), a limiting rod (430), a limiting end cover (440) and a spring (450), wherein the top end of the limiting rod (430) is fixedly connected to the bottom end of the contact assembly (40), the bottom end of the limiting rod (430) movably penetrates through the supporting seat (410), the limiting end cover (440) is installed at the bottom end of the limiting rod (430), the spring (450) is sleeved outside the limiting rod (430), the contact assembly (40) is provided with two groups, and the two groups of contact assemblies (40) are respectively installed on two sides of a contact end of an armature plate (240).

2. The limit type electromagnetic relay according to claim 1, wherein the telescopic adjusting member (320) comprises a connecting sleeve (321) and an adjusting bolt (322), the top end of the connecting sleeve (321) is connected to the bottom end of the tension spring (310), the screw of the adjusting bolt (322) movably penetrates through the housing (10), and the rod end of the adjusting bolt (322) is screwed to the bottom of the connecting sleeve (321).

3. The limit-limiting electromagnetic relay according to claim 2, wherein the connecting sleeve (321) is provided with a through notch (323) therein, and the rod end of the adjusting bolt (322) extends into the through notch (323).

4. The limit type electromagnetic relay according to claim 2, wherein a threaded hole (324) is formed in the bottom of the connecting sleeve (321), and the rod end of the adjusting bolt (322) is in threaded fit with the threaded hole (324).

5. The limit type electromagnetic relay according to claim 1, wherein a groove (460) is formed in one side of the supporting seat (410) close to the armature plate (240), and the second contact block (420) is slidably disposed inside the groove (460).

6. The limit type electromagnetic relay according to claim 5, wherein sliding grooves (470) are formed in both sides of the groove (460), sliding blocks (480) are arranged on both sides of the second contact block (420), and the sliding blocks (480) are in sliding fit with the sliding grooves (470).

7. The limit type electromagnetic relay according to claim 1, wherein the outer casing (10) is provided with three sets of joint pieces (490) outside, and the joint pieces (490) are provided with three sets.

8. The position limiting electromagnetic relay according to claim 7, wherein three sets of said connector members (490) are connected with wires (491) respectively between said armature plate member (240) and a top portion of one side of said second contact block (420).

9. The limit type electromagnetic relay according to claim 1, wherein the armature plate member (240) comprises a transverse plate (241), an armature block (242) and a first contact block (243), and the transverse plate (241) and the first contact block (243) are respectively connected to two ends of the armature block (242).

10. A position limiting electromagnetic relay according to claim 9, characterized in that a ceramic plate (244) is arranged between the armature block (242) and the first contact block (243).