CN113380580A

CN113380580A - Electromagnetic relay with button buffer mechanism

Info

Publication number: CN113380580A
Application number: CN202110712468.3A
Authority: CN
Inventors: 林永斌; 黄诚
Original assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Current assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-09-10

Abstract

The invention relates to the technical field of relays, in particular to an electromagnetic relay with a button buffering mechanism, which comprises a shell, a button assembly and a contact system positioned in the shell, wherein the shell is provided with a mounting seat for mounting the button assembly, the button assembly comprises a button and an elastic piece matched with the button, the bottom of the button is provided with a buffering key rod, the buffering key rod can extend into the shell to be movably contacted with an armature, so that the contact system is switched on or switched off, and the test work of a load end circuit of the electromagnetic relay is finished.

Description

Electromagnetic relay with button buffer mechanism

Technical Field

The invention relates to the technical field of relays, in particular to an electromagnetic relay with a button buffer mechanism.

Background

The electromagnetic relay mainly comprises a shell, a contact system, a magnetic circuit system and the like, wherein an armature is connected between the magnetic circuit systems, after the magnetic circuit system is electrified, an iron core in the magnetic relay is attracted with the armature to realize the conduction of an internal circuit of the electromagnetic relay, a button which is in movable contact with the armature is often installed on the shell above the armature, the button of the electromagnetic relay is a switch for debugging personnel to detect whether a load end circuit of the relay is normal or not, but the button in the prior art is of a solid structure and has no buffer function, when the button is acted by external force, the button is directly and rigidly abutted against the armature, a larger reverse pressure is often generated to act on the button, and as the button is made of hard plastic, the bent part of the button is easy to break and damage due to over-concentrated pressure, so that the detection function of the circuit on-off of the electromagnetic relay is invalid, the normal operation of the electromagnetic relay is seriously influenced.

Disclosure of Invention

The invention aims to provide an electromagnetic relay with a button buffer mechanism, which is characterized in that a buffer key rod is additionally arranged on a button, so that the pressure generated by the abutting extrusion of the action end of the button and an armature iron is buffered and dispersed, and the bending part of the button is prevented from being broken and damaged due to over concentrated pressure.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a take button buffer gear's electromagnetic relay, includes casing, button assembly and is located the contact system in the casing, be equipped with the mount pad of installation button assembly on the casing, button assembly includes button and matched with elastic component, and the button bottom is equipped with buffering key pole, and buffering key pole can stretch into the casing and armature movable contact, and then switch-on or break-off contact system, accomplishes electromagnetic relay load end circuit's test work, buffering key pole has one and carries out the effect end that contacts with armature for buffering key pole can cushion and disperse this effect end and armature conflict extrusion production pressure.

Above-mentioned technical scheme, through set up buffering key pole bottom the button, the tip and the armature of buffering key pole are the contact, and buffering key pole can cushion the pressure that disperses its tip and the armature conflict extrusion production of relay, prevents that the button from bearing too big and concentrated pressure, and the fracture appears, leads to the detection function failure of electromagnetic relay circuit break-make.

Preferably, a through hole is formed in the center of the buffering key rod, a buffering notch communicated with the through hole is formed in one side of the buffering key rod, and the buffering key rod is arranged in such a way that when the action end of the buffering key rod is contacted with the armature, the buffering key rod generates a certain deformation amount, the pressure borne by the buffering key rod is relieved, the risk of breakage of the buffering key rod is reduced, the on-off detection function of the circuit of the button is ensured to meet the requirement, and the service life of the button is prolonged.

Preferably, the button further includes a button upper plate integrally connected to the buffer key lever, the buffer key lever includes a key lever main body portion, an action portion, an upper limit portion and a lower limit portion, the upper limit portion and the lower limit portion form the buffer notch, and the buffer notch is located in a vertical direction of the button upper plate.

Above-mentioned technical scheme for lower spacing portion has certain elasticity, can effectively alleviate the pressure that buffering key pole bore, plays the effect of buffering.

Preferably, action portion both ends respectively with key pole main part and spacing portion body coupling down, action portion is used for contacting the cooperation with armature, so sets up for the pressure energy that produces when action portion contacts the extrusion with armature disperses to key pole main part and spacing portion down, prevents that key pole main part atress is too concentrated and easily break.

Preferably, the action part is obliquely arranged and is close to one end face of the lower limiting part and the armature, so that the contact area is reduced on the premise that the buffering key rod can disperse pressure, the action part is consistent and reliable with the contact position of the armature at each time, the top of the indicating plate is ensured to correspond to the position of the window, errors are reduced, the indicating plate is completely exposed to the position of the window, and automatic assembly of parts of the indicating plate is realized.

Preferably, the through hole is a racetrack-shaped through hole, so that the wall thicknesses of the key rod main body part, the upper limit part and the lower limit part are approximately the same, and the stability of the whole structure and the stress balance are ensured.

Preferably, the elastic piece is a spring, the upper end and the lower end of the spring are respectively matched with the button upper plate and the mounting seat, the button performs reset motion under the elastic force action of the spring, and the spring is better in elasticity and guarantees reliable reset of the button.

Preferably, the mounting seat is provided with a cylinder body for accommodating the buffer key rod, and the spring is sleeved outside the cylinder body.

Above-mentioned technical scheme for the spring cup joints outside the drum body, guarantees that the spring can not take place the skew in the horizontal direction, and what buffering key pole is also spacing in the drum body, and then guarantees that the button can not appear the skew of horizontal direction.

Preferably, the button upper plate both sides extend respectively and have a stopper, be provided with on the mount pad with the stopper corresponds the spacing guide way of complex, and the restriction button can only vertical up-and-down linear motion, prevents simultaneously that the button card from pausing not kick-back.

Preferably, the button is in contact fit with a hasp, the two sides of the hasp respectively extend to form a clamping piece, the mounting seat is provided with a groove hole corresponding to and matched with the clamping piece, the hasp rotates by taking the clamping piece as a fulcrum, and then the button is controlled to do linear reciprocating motion, so that the button is in movable contact with the armature, a contact system is switched on or switched off, and the test work of the electromagnetic relay is completed.

The invention has the following beneficial effects:

(1) the through hole is formed in the center of the buffering key rod, the buffering notch communicated with the through hole is formed in one side of the buffering key rod, and the buffering key rod is arranged in such a way that when the action end of the buffering key rod is contacted with the armature, the buffering key rod generates a certain deformation amount, the pressure borne by the buffering key rod is relieved, the risk of breakage of the buffering key rod is reduced, the detection function of on-off of a circuit of the button is ensured to meet the requirement, and the service life of the button is prolonged.

(2) The action part is obliquely arranged and is close to one end face of the lower limiting part and the armature, so that the contact area is reduced on the premise that the buffering key rod can buffer dispersed pressure, the action part is consistent and reliable with the contact position of the armature at each time, the top of the indicating plate is ensured to correspond to the position of the window, errors are reduced, the indicating plate is completely exposed at the position of the window, and automatic assembly of parts of the indicating plate is realized.

(3) The through holes are runway-shaped through holes, so that the wall thicknesses of the key rod main body part, the upper limiting part and the lower limiting part are approximately the same, and the stability of the whole structure and the stress balance are ensured.

(4) The button upper plate both sides extend respectively and have a stopper, are provided with on the mount pad and correspond the spacing guide way of complex with the stopper, guarantee to inject the button and only can vertical up-and-down linear motion, prevent simultaneously that the button card from pausing not kick-backing.

Drawings

FIG. 1 is a general schematic of the present invention;

FIG. 2 is a schematic view of the housing and button assembly of the present invention;

FIG. 3 is a schematic view of the position of the button assembly of the present invention on a relay;

FIG. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is a schematic view of a button assembly of the present invention;

FIG. 6 is a schematic view of the button of the present invention;

FIG. 7 is a schematic view of the buckle of the present invention;

fig. 8 is a schematic view of the housing of the present invention.

The attached drawings are marked as follows:

1. a housing;

2. a button 21, a button upper plate 211, a limit block 22, a buffer key lever 221, a key lever main body 222, an action part 223, a lower limit part 224, an upper limit part 225, a through hole 226 and a buffer notch;

3. a spring;

4. the device comprises a mounting seat 41, a cylinder body 42, a limiting guide groove 43 and a groove hole;

5. an armature;

6. a hasp 61 and a clamping piece;

7. an iron core;

8. a push rod;

9. an indicator panel.

Detailed Description

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Referring to fig. 1 to 8, as a preferred embodiment of the present invention, an electromagnetic relay with a button buffer mechanism is provided, which includes a housing 1, a button 2 assembly, and a contact system located in the housing 1, where the housing 1 is provided with a mounting seat for mounting the button 2 assembly, the button 2 assembly includes a button 2 and a matched elastic member, the bottom of the button 2 is provided with a buffer key rod 22, the buffer key rod 22 can extend into the housing 1 to movably contact with an armature 5, so as to turn on or off the contact system, and complete a test operation of a load end circuit of the electromagnetic relay, and the buffer key rod 22 has an action end in contact with the armature 5, so that the buffer key rod 22 can buffer and disperse a pressure generated by the action end colliding and pressing with the armature 5.

Above-mentioned technical scheme is equipped with buffering key pole 22 through 2 bottoms at the button, and the effect end of buffering key pole 22 contacts with armature 5, guarantees that buffering key pole 22 can cushion the pressure that this contact extrusion produced of dispersion, prevents that button 2 from bearing too big and concentrated pressure, and the fracture appears, leads to the detection function of electromagnetic relay circuit break-make to lose efficacy, guarantees the normal operating of electromagnetic relay work.

As shown in fig. 6, a through hole 225 is formed at the center of the buffering key rod 22, and a buffering gap 226 communicating with the through hole 225 is formed at one side of the buffering key rod 22.

By adopting the technical scheme, when the action end of the buffering key rod 22 is contacted with the armature 5, the buffering key rod 22 can generate a certain deformation amount, so that the pressure born by the buffering key rod 22 is relieved, the risk of breakage of the buffering key rod 22 is reduced, the on-off detection function of the circuit of the button 2 is ensured to meet the requirement, and the service life of the button 2 is prolonged.

In this embodiment, the push button 2 further includes a push button upper plate 21 integrally connected to the buffer key lever 22, the buffer key lever 22 includes a key lever main body 221, an acting portion 222, an upper limit portion 224 and a lower limit portion 223, the upper limit portion 224 and the lower limit portion 223 form the buffer notch 226, and the buffer notch 226 is located in a vertical direction of the push button upper plate 21.

In the above technical solution, since the pressure generated by the collision and extrusion of the button 2 moving vertically downward and the armature 5 is also perpendicular to the button upper plate 21, the buffer notch 226 is located in the vertical direction of the button upper plate 21, so that the lower limit portion 223 has certain elasticity, and can effectively relieve the pressure borne by the buffer key rod 22, thereby playing a role of buffering.

Preferably, both ends of the acting part 222 are respectively and integrally connected with the key rod main body part 221 and the lower limiting part 223, and the acting part 222 is used for being in contact fit with the armature 5, so that the pressure generated when the acting part 222 is in contact pressing with the armature 5 can be dispersed to the key rod main body part 221 and the lower limiting part 223, and the key rod main body part 221 is prevented from being broken easily due to too concentrated stress.

In the prior art, the bottom of the button is in full contact with the armature, the contact area is large, and the contact positions of the button and the armature are difficult to keep consistent due to the fact that the armature is inclined, so that the positions of the windows of the indicating plate 9 exposed due to different descending effective distances of the button are different, and in the embodiment, as shown in the cross section of fig. 4, the action part 222 is obliquely arranged, and one end face close to the lower limiting part 223 is in contact fit with the armature 5, so that the contact area is reduced to form local contact, and on the premise that the buffering key rod 22 can buffer dispersed pressure, the action part 222 is ensured to be consistent and reliable with the contact position of the armature 5 at each time, so that the top of the indicating plate 9 is ensured to correspond to the window position, errors are reduced, the button is completely exposed to the window position, and the automatic assembly of parts of the indicating plate 9 is realized.

Specifically, in the present embodiment, the through hole 225 is a racetrack-shaped through hole 225, so that the wall thicknesses of the key lever main body 221, the upper limit portion 224 and the lower limit portion 223 are substantially the same, thereby ensuring the overall structural stability and the stress balance. Of course, in other embodiments, the through hole 225 may also be a rounded rectangle or an oval, as long as the wall thickness of the key lever main body 221, the upper limit portion 224 and the lower limit portion 223 is approximately the same, so as to ensure the overall structural stability.

In this embodiment, the elastic component is spring 3, both ends cooperate with button upper plate 21 and mount pad 4 respectively about spring 3, button 2 is in carry out the motion that resets under spring 3's the elastic force effect, and spring 3 compares in the design of shell fragment, and elasticity is better, guarantees to realize the reliable reseing of button 2.

As shown in fig. 4 and 8, in the present embodiment, a cylinder 41 for accommodating the buffer key rod 22 is provided on the mounting seat 4, and the spring 3 is sleeved outside the cylinder 41.

Above-mentioned technical scheme for spring 3 cup joints outside cylinder 41, guarantees that spring 3 can not take place the skew at the horizontal direction, and buffering key pole 22 also spacing in cylinder 41, and then guarantees that the skew of horizontal direction can not appear in button 2.

In this embodiment, button upper plate 21 both sides extend respectively and have stopper 211, be provided with on mount pad 4 with stopper 211 corresponds the spacing guide way 42 of complex, inject button 2 and only can be in linear motion about vertical direction, prevent simultaneously that button 2 from blocking and not kick-backing, avoided hasp 6 to appear the condition that button 2 can not reset after rotating many times.

As shown in fig. 5 and 7, in this embodiment, the button 2 is in contact fit with a buckle 6, the buckle 6 extends from two sides thereof to form a clamping member 61, the mounting seat 4 is provided with a groove hole 43 corresponding to the clamping member 61, when the buckle 6 is subjected to an external force, the buckle 6 rotates with the clamping member 61 as a fulcrum, and then the button 2 is controlled to perform linear reciprocating motion, so that the button 2 is in movable contact with the armature 5, and a contact system is connected or disconnected, thereby completing the test of the electromagnetic relay.

Specifically, joint piece 61 is cylindric joint piece 61, and it and recess hole 43 size interference fit prevent when joint piece 61 and recess hole 43 assembly, and hasp 6 jumps out mount pad 4 of casing 1 by the 3 spring action of spring, 6 marginal one end of hasp is for being formed with the chamfer, helps finger nail and 6 marginal laminating of hasp to pull hasp 6 smoothly, prevents that the finger from pulling the in-process and skidding 6 edges of hasp, and pulls behind 6 hasps, can keep at this state, need not press the button with the hand always, convenient debugging.

In the embodiment, as shown in fig. 1-3, the button-type lamp part can be automatically provided with the indicator panel 9, then the LED lamp component is sleeved, and finally the assembly of the button 2 and the upper cover of the shell is completed.

The workflow of this embodiment is as follows:

when needs trigger relay, upwards pull hasp 6, the hasp uses joint piece 61 to rotate as the fulcrum, button 2 receives 6 conflict extrusion downstream of hasp, the compression of spring 3, the terminal surface and the armature 5 of effect portion 222 carry out the contact cooperation, armature 5 rotates with taking place, one end and iron core 7 contact, one end can make catch bar 8 horizontal migration forward in addition, switch on until the contact, indicator board 9 top exposes at the window position, when detaining hasp 6, under spring 3 spring action, the stopper 211 of upper plate 21 upwards resets smoothly along spacing guide way 42, through operating like this, the debugging personnel can detect whether relay load holds the circuit normally, carry out electrical debugging.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a take button buffer gear's electromagnetic relay which characterized in that: including casing, button assembly and the contact system who is located in the casing, be equipped with the mount pad of installation button assembly on the casing, button assembly includes button and matched with elastic component, and the button bottom is equipped with buffering key pole, and buffering key pole can stretch to put in the casing with armature movable contact, and then switch-on or break contact system, accomplishes electromagnetic relay load end circuit's test work, buffering key pole has one and carries out the effect end that contacts with armature for buffering dispersion this effect end and armature conflict extrusion production pressure can be cushioned to the buffering key pole.

2. The electromagnetic relay with button buffering mechanism according to claim 1, characterized in that: the center of the buffering key rod is provided with a through hole, and one side of the buffering key rod is provided with a buffering gap communicated with the through hole.

3. The electromagnetic relay with button buffering mechanism according to claim 2, characterized in that: the button further comprises a button upper plate integrally connected with the buffering key rod, the buffering key rod comprises a key rod main body part, an acting part, an upper limiting part and a lower limiting part, the upper limiting part and the lower limiting part form a buffering gap, and the buffering gap is located in the vertical direction of the button upper plate.

4. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the two ends of the action part are respectively and integrally connected with the key rod main body part and the lower limiting part, and the action part is used for being in contact fit with the armature.

5. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the action part is obliquely arranged, and the end face of one end close to the lower limiting part is in contact fit with the armature.

6. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the through hole is a racetrack-shaped through hole, so that the wall thicknesses of the key rod main body part, the upper limit part and the lower limit part are approximately the same.

7. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the elastic piece is a spring, the upper end and the lower end of the spring are respectively matched with the button upper plate and the mounting seat, and the button performs reset motion under the elastic force action of the spring.

8. The electromagnetic relay with button buffering mechanism according to claim 7, characterized in that: the mounting seat is provided with a cylinder body for accommodating the buffering key rod, and the spring is sleeved outside the cylinder body.

9. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the button upper plate both sides extend respectively to have a stopper, be provided with on the mount pad with the stopper corresponds the spacing guide way of complex.

10. The electromagnetic relay with button buffering mechanism according to claim 3, characterized in that: the button is in contact fit with a hasp, clamping pieces extend from two sides of the hasp respectively, and groove holes correspondingly matched with the clamping portions are formed in the mounting seat.