CN213752548U - Clapper type plug-in relay and socket suitable for heavy load - Google Patents

Abstract

The utility model discloses a clapper type plug-in relay and socket suitable for heavy load, which belongs to the technical field of electromagnetic relays and comprises a relay shell, wherein a base is fixedly arranged at the bottom of the relay shell, a leading-out end is arranged at one side of the base, which is far away from the relay shell, a groove is arranged at the bottom of the base, a clamping hook is fixedly arranged in the groove, one end of the clamping hook is fixedly connected with the base through a screw, and the other end of the clamping hook penetrates out of the base; the utility model discloses with screw with pothook and base rigid coupling for whole relay and pothook become a whole, the pothook can with the socket on the cooperation of corresponding draw-in groove, thereby solve and be connected insecure problem between relay and the socket, effectually prevented because the vibration of environment strikes and the mechanical action of relay itself, long-time later, the bad situation that the relay has the pine to take off produces, brings the condition of serious inefficacy.

Description

Clapper type plug-in relay and socket suitable for heavy load

Technical Field

The utility model belongs to the technical field of electromagnetic relay, concretely relates to clap box-like plug-in relay and socket suitable for heavy load.

Background

The conventional clapper type plug-in relay mainly comprises a magnetic circuit system and a contact system. The magnetic circuit system is composed of an armature, a yoke iron, an iron core and a coil frame wound with enameled wires. The contact system comprises a movable contact, a movable spring rubber coating, a fixed contact, a leading-out end, a lead, a base and the like.

However, in the process of implementing the present invention, the inventor finds that the relay in the prior art has at least the following problems: the existing situation is that the reliability of the relay is not high and the service life is short, and the reasons for this are as follows:

1) the relay is usually inserted into the socket, and the relay is fixedly connected only by the insertion force between the relay and the socket without a clamping mechanism for preventing the relay from loosening. In fact, due to the vibration impact of the environment and the mechanical action of the relay, after a long time, the relay may get loose, which brings about serious failure;

2) when the relay is damaged, the relay is replaced, and the socket can be used continuously. Therefore, once the specification of the relay coil is wrong, the relay coil can be burnt;

3) the service life of the relay contact is reduced due to the electric arc generated by the large-capacity load, and the requirement of long service life cannot be met;

4) and the traditional brass leading-out end is plated with nickel, so that heat generated by the contact cannot be quickly and effectively dissipated, the temperature rise of the relay is too high, and even the socket is burnt out and loses efficacy.

5) The electric clearance in the relay is not enough, and voltage breakdown resistance is easy to generate.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a clapper type plug-in relay and socket suitable for heavy load.

The utility model discloses the technical scheme who adopts does:

the utility model provides a clap box-like insertion type relay suitable for heavy load, includes the relay casing, the bottom of relay casing has set firmly the base, the one side of keeping away from the relay casing of base is provided with draws forth the end, the bottom of base is provided with the recess, the pothook has set firmly in the recess, the one end of pothook pass through the screw with the base rigid coupling, the other end of pothook is worn out the base.

Adopt this preferred scheme, with screw with pothook and base rigid coupling for whole relay and pothook become a whole, the pothook can with the socket on corresponding draw-in groove cooperation, thereby solve and be connected insecure problem between relay and the socket, effectually prevented because the vibration of environment strikes and the mechanical action of relay itself, after long-time, the bad situation that the relay can take off takes off produces, brings the condition of serious inefficacy.

Further, the pothook is elastic, the pothook includes integrated into one piece's arc portion and the portion of bending, through the screw rigid coupling between arc portion and the base, the portion of bending is worn out the base and can be dismantled with the socket and be connected, the width of arc portion is less than the width of the portion of bending. Adopt this preferred scheme, the pothook is the elasticity material, and the pothook cooperates with the draw-in groove on the socket, and the pothook progressively gets into the in-process of draw-in groove, and the portion of bending is at first extruded with the draw-in groove contact on the socket, slowly gets into the draw-in groove, and the portion of bending is injectd in the draw-in groove, realizes the elasticity rigid coupling of relay and socket.

Further, still including relative first stationary blade and the second stationary blade that sets up, first stationary blade and second stationary blade set firmly respectively in the both sides of relay casing, and the spring leaf rigid coupling is passed through to the one end of first stationary blade and the one end of second stationary blade, and the other end of first stationary blade and the other end of second stationary blade all are provided with the barb. Adopt this preferred scheme, the second spacing inslot in the socket can be inserted at the both ends of first stationary blade and second stationary blade, and the barb is with first stationary blade or second stationary blade card at the spacing inslot of second, and the other end couples together through the spring leaf to compress tightly the relay on the socket, improve the firm in connection degree between relay and the socket.

Furthermore, a first limiting groove is formed in the top of the relay shell, one end of the spring piece is fixedly connected with the first fixing piece, and the other end of the spring piece penetrates through the first limiting groove and is fixedly connected with the second fixing piece. Adopt this preferred scheme, set up first spacing groove at the top of relay casing and be used for restricting the spring leaf, further make the spring leaf compress tightly relay casing.

Further, the bottom of the base is provided with a key control pin, and the cross section of the key control pin is in any one of a circle, a square, a regular hexagon and a triangle. Adopt this preferred scheme, the bottom of base sets up the keying pin of different shapes, has the pinhole of the same shape on the socket, can effectively prevent the misuse of relay.

Furthermore, draw forth the end and include the several normally open contact of in bank and the several normally closed contact of in bank, be provided with magnet between the normally open contact of in bank and the normally closed contact of in bank, be provided with the arc extinguishing cover between the normally open contact of same row or between the normally closed contact of same row, the arc extinguishing cover pass through epoxy with the magnet bonds. By adopting the preferred scheme, electric arcs can be generated when each contact in the relay is electrified, the magnet generates a magnetic field to reduce the action of the electric arcs, and the arc extinguishing cover isolates the electric arcs generated by each group of contacts, so that the problem that the service life of the relay is short due to the large electric arcs generated by a high-power relay is effectively solved.

Furthermore, the leading-out end comprises a plane contact leading-out end and a plane contact, the plane contact is located in the base, the plane contact leading-out end is located outside the base, the plane contact leading-out end and the plane contact are connected through resistance welding, and the surface of the plane contact leading-out end is provided with a silver coating. Adopt this preferred scheme, adopt resistance welding to connect the plane contact and draw forth end and plane contact, through the process of high temperature butt fusion, with two kinds of metal butt fusion as an organic whole, strengthen the heat conduction and the electric conductive property of drawing forth the end, draw forth the end electro-silvering at the plane contact, silver has good electric conductive property and heat conductivility, can reduce contact resistance, reduces and generates heat, improves the life of relay.

A socket for a clapper-type insertion relay adapted to a heavy load, comprising: the socket comprises a socket shell, wherein the top of the socket shell is provided with a socket used for being matched with a leading-out end and a clamping groove used for being matched with a clamping hook, and the two sides of the shell are respectively provided with a first slot and a second slot which are used for being matched with a first fixing piece and a second fixing piece.

Adopt above-mentioned scheme, be provided with draw-in groove and socket in the socket casing, when inserting the relay male end of drawing forth in the socket, the pothook carries out spacing fixed in inserting the draw-in groove, and the both sides of socket casing set up first slot and second slot, and first stationary blade and second stationary blade are pegged graft and are carried out spacing fixed in first slot and second slot.

Furthermore, the clamping groove comprises a first accommodating part and a second accommodating part which are communicated with each other, the second accommodating part is close to the bottom of the socket shell, and the aperture of the first accommodating part is smaller than that of the second accommodating part. Adopt this preferred scheme, when inserting the relay in the socket, the first portion of holding that gets into the draw-in groove of bending of pothook earlier is extrudeed, then gets into the second portion of holding, because second aperture grow, the second portion of bending pressure diminishes, can bounce off to second portion of holding both sides automatically, makes the relay block by the portion of bending in the second portion of holding.

Furthermore, a second limiting groove is formed in one side of the first slot or the second slot, and the second limiting groove is matched with the barb. Adopt this preferred scheme, when first stationary blade or second stationary blade insert the second spacing inslot, the barb on first stationary blade or the second stationary blade is extruded in the second spacing inslot, enters into the second spacing inslot, realizes spacingly.

The utility model has the advantages that:

1) the utility model discloses use the screw with pothook and base rigid coupling for whole relay and pothook become a whole, the pothook can cooperate with the corresponding draw-in groove on the socket, thereby solve the insecure problem of connection between relay and the socket, has prevented effectively that because the vibration of environment strikes and the mechanical action of relay itself, after long-time, the bad situation that the relay can take off takes place, brings the condition of serious inefficacy; the pothook is the elasticity material, and the pothook cooperates with the draw-in groove on the socket, and the pothook progressively gets into the in-process of draw-in groove, and the portion of bending is at first extruded with the draw-in groove contact on the socket, slowly gets into the draw-in groove, and the portion of bending is injectd in the draw-in groove, realizes the elasticity rigid coupling of relay and socket.

2) The two ends of the first fixing sheet and the second fixing sheet in the utility model can be inserted into the second limiting groove in the socket, the first fixing sheet or the second fixing sheet is clamped in the second limiting groove by the barb, and the other end is connected by the spring piece, so that the relay is tightly pressed on the socket, and the connection firmness between the relay and the socket is improved; the top of the relay shell is provided with a first limiting groove for limiting the spring piece, so that the spring piece is further pressed on the relay shell; the bottom of base sets up the keying round pin of different shapes, has the pinhole of the same shape on the socket, can effectively prevent the misuse of relay.

3) The relay can generate electric arcs when each contact in the relay is electrified, the magnet generates a magnetic field to reduce the action of the electric arcs, and the arc extinguishing cover isolates the electric arcs generated by each group of contacts, thereby effectively solving the problem that the large electric arcs generated by a high-power relay cause short service life of the relay; adopt resistance weld to connect the plane contact and draw forth end and plane contact, through the process of high temperature butt fusion, with two kinds of metal butt fusion as an organic whole, strengthen drawing the heat conduction and the electric conductive property of end, draw forth the end electro-silvering at the plane contact, silver has good electric conductive property and heat conductivility, can reduce contact resistance, reduces to generate heat, improves the life of relay.

4) The socket shell of the utility model is internally provided with a clamping groove and a socket, when the leading-out terminal inserted by the relay is inserted into the socket, the clamping hook is inserted into the clamping groove for limiting and fixing, the two sides of the socket shell are provided with a first slot and a second slot, and the first fixing piece and the second fixing piece are inserted into the first slot and the second slot for limiting and fixing; when the relay is inserted into the socket, the bending part of the clamping hook firstly enters the first accommodating part of the clamping groove to be extruded and then enters the second accommodating part, and the pressure of the second bending part is reduced due to the increase of the second aperture, so that the second bending part can automatically spring to two sides of the second accommodating part, and the relay is clamped by the bending part in the second accommodating part; when the first fixing plate or the second fixing plate is inserted into the second limiting groove, the barb on the first fixing plate or the second fixing plate is extruded in the second limiting groove and enters the second limiting groove to realize limiting.

Drawings

Fig. 1 is a schematic view of the internal structure of the assembly of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the explosion of the present invention.

Fig. 3 is a schematic view of the internal structure of the base of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a schematic side view angle diagram of the present invention.

Fig. 6 is a schematic cross-sectional view at a-a of fig. 5.

Fig. 7 is a schematic perspective view of the relay according to the present invention.

Fig. 8 is a schematic perspective view of the socket of the present invention.

In the figure: 1-a relay housing; 2-a base; 3-leading out end; 4-hook; 5-a screw; 6-a first fixing sheet; 7-spring leaf; 8-barb; 9-a magnet; 10-arc extinguishing chamber; 11-a socket housing; 12-a card slot; 13-a first slot; 14-second limiting groove.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work.

The technical solution provided by the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

In some instances, some embodiments are not described or not in detail, as they are conventional or customary in the art.

Furthermore, the technical features described herein, or the steps of all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments, in addition to the mutually exclusive features and/or steps. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Any order in the drawings and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated to be required.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The terms "connected" and "coupled" when used in this application, encompass both direct and indirect connections (and couplings) where appropriate and where not necessary contradictory.

The first embodiment is as follows:

the utility model provides a clap box-like insertion type relay suitable for heavy load, includes relay housing 1, relay housing 1's bottom has set firmly base 2, one side that relay housing 1 was kept away from to base 2 is provided with draws forth end 3, base 2's bottom is provided with the recess, pothook 4 has set firmly in the recess, pothook 4's one end pass through screw 5 with 2 rigid couplings of base, pothook 4's the other end is worn out base 2.

Pothook 4 is the elastic material, pothook 4 includes integrated into one piece's arc portion and the portion of bending, through 5 rigid couplings of screw between arc portion and the base 2, the portion of bending is worn out base 2 and can be dismantled with the socket and be connected, the width of arc portion is less than the width of the portion of bending.

Still including the first stationary blade 6 and the second stationary blade that set up relatively, first stationary blade 6 and second stationary blade set firmly respectively in the both sides of relay housing 1, and spring leaf 7 rigid coupling is passed through respectively to the one end of first stationary blade 6 and the one end of second stationary blade, and the other end of first stationary blade 6 and the other end of second stationary blade all are provided with barb 8.

The top of the relay shell 1 is provided with a first limiting groove, one end of the spring piece 7 is fixedly connected with the first fixing piece 6, and the other end of the spring piece 7 penetrates through the first limiting groove to be fixedly connected with the second fixing piece.

A socket for a clapper-type insertion relay adapted to a heavy load, comprising: socket shell 11, the top of socket shell 11 be provided with be used for with 3 complex sockets of leading out end and be used for with pothook 4 complex draw-in groove 12, the both sides of socket shell 11 are provided with respectively and are used for with first stationary blade 6 and second stationary blade complex first slot 13 and second slot.

The clamping groove 12 comprises a first accommodating part and a second accommodating part which are mutually communicated, the second accommodating part is close to the bottom of the socket shell 11, the first accommodating part is used for accommodating the arc-shaped part of the clamping hook 4, the second accommodating part is used for accommodating the bending part of the clamping hook 4, and the aperture of the first accommodating part is smaller than that of the second accommodating part.

A second limiting groove 14 is formed in one side of the first slot 13 or the second slot, and the second limiting groove 14 is matched with the barb 8.

In the first embodiment, as shown in fig. 1 to 7, the hook 4 is a metal elastic body having high elasticity. The hook 4, the yoke and the base 2 are connected and fastened by a screw 5, so that the whole relay 2 and the hook 3 are integrated. If from last down, insert socket 2 with relay 1, at first in the first accommodation portion of pothook 4 along the first little draw-in groove of the advanced income socket 2 middle dimension of direction of gravity, pothook 4's the portion of bending is extruded and is dwindled gradually and get into the draw-in groove, when about to insert to the end, because second accommodation hole grow, pothook 4 can be along the automatic bounceing of the both sides direction of draw-in groove, make the relay pull by pothook 4 in the direction of gravity, will upwards extract the relay, must overcome pothook 4's tension. When the relay is impacted and vibrated, the relay is not easily disconnected due to the larger tension of the hook 4;

the socket comprises a socket shell 11, a first slot 13 or a second slot is formed in two sides of the socket shell 11, a first fixing piece 6 or a second fixing piece is inserted into the first slot 13 or the second slot towards the gravity direction, a barb 8 is arranged at the bottom of the first fixing piece 6, and the first fixing piece or the fixing piece can not fall off. The spring piece 7 forms a pressure similar to a shoulder pole at two ends in square holes penetrating into the first fixing piece 6 and the second fixing piece. A limiting groove is formed in the middle of the relay shell 1, and the spring piece 7 is clamped into the limiting groove to be limited, so that the relay is tightly pressed on the socket.

The following examples are all preferably obtained on the basis of example one.

Example two:

the bottom of the base 2 is provided with a key control pin, and the cross section of the key control pin is in any one of a circle, a square, a regular hexagon and a triangle.

Different keying pins are arranged at the bottom of the base, corresponding pin holes are formed in the top of the socket, and the keying pins are inserted into the pin holes of the socket as shown in fig. 8, so that self control can be realized, and wrong relays can be prevented.

Example three:

the leading-out end comprises a plurality of normally open contacts in a row and a plurality of normally closed contacts in a row, magnets 9 are arranged between the normally open contacts in the row and the normally closed contacts in the row, arc extinguishing covers 10 are arranged between the normally open contacts in the same row or between the normally closed contacts in the same row, and the arc extinguishing covers 10 are bonded with the magnets 9 through epoxy resin.

The leading-out end comprises a plane contact leading-out end and a plane contact, the plane contact is located in the base 2, the plane contact leading-out end is located outside the base 2, the plane contact leading-out end and the plane contact are connected through resistance welding, and a silver coating is arranged on the surface of the plane contact leading-out end.

The leading-out ends of the plane contacts and the leading-out ends of the plane contacts are connected by spot welding, and the plane contacts and the leading-out ends of the plane contacts are inserted into the base 2 from the gravity direction, and the total number of the plane contacts and the leading-out ends of the plane contacts is eight, so that four groups of conversion contacts, four normally open contacts and four normally closed contacts are formed. The magnet 9 is wrapped by two layers of high-temperature resistant glass cloth adhesive tapes, and then is adhered on the base 2 along the gravity direction by using an epoxy resin adhesive, and the N pole and the S pole are respectively close to the two rows of plane contacts. Four arc extinguishing chambers 10 are respectively sleeved on two outer sides of the leading-out ends of every two opposite plane contacts, the arc extinguishing chambers 10 are adhered to two sides of the N/S pole of the magnet 9 by epoxy resin adhesive, and the arc extinguishing chambers are filled with gaps and firmly adhered to isolate electric arcs generated by each group of contacts. The contact is electrified to generate electric arcs, and the electric arcs are reduced under the action of the magnetic field;

and connecting the plane contact leading-out end with the plane contact by adopting resistance welding, and then electroplating silver. Silver is the best of all metals for its electrical and thermal conductivity. Resistance welding is a high-temperature welding process by passing instantaneous large current through two metal contact surfaces. The two metals are welded into a whole, and heat conduction and electric conduction are optimal. In addition, the surface of the copper terminal is plated with silver, so that the Joule heat energy generated by contact of the contact is quickly conducted, and the heat dissipation is quick. Silver has a relatively high conductivity in metal, and can reduce contact resistance and heat generation. The electrical life of the relay is improved.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (10)

1. The utility model provides a clap formula of inserting relay suitable for heavy load, includes relay housing (1), base (2) have set firmly in the bottom of relay housing (1), one side that relay housing (1) was kept away from in base (2) is provided with and draws forth end (3), its characterized in that, the bottom of base (2) is provided with the recess, pothook (4) have set firmly in the recess, the one end of pothook (4) pass through screw (5) with base (2) rigid coupling, the other end of pothook (4) is worn out base (2).

2. A clapper-type insertion relay adapted for use with heavy loads as recited in claim 1, wherein: pothook (4) are elastic material, pothook (4) include integrated into one piece's arc portion and the portion of bending, through screw (5) rigid coupling between arc portion and base (2), the portion of bending is worn out base (2) and can be dismantled with the socket and be connected, the width of arc portion is less than the width of the portion of bending.

3. A clapper-type insertion relay adapted for use with heavy loads as recited in claim 1, wherein: still including relative first stationary blade (6) and the second stationary blade that sets up, first stationary blade (6) and second stationary blade set firmly respectively in the both sides of relay casing (1), and spring leaf (7) rigid coupling is passed through to the one end of first stationary blade (6) and the one end of second stationary blade, and the other end of first stationary blade (6) and the other end of second stationary blade all are provided with barb (8).

4. A clapper-type insertion relay adapted for use with heavy loads as claimed in claim 3, wherein: the top of the relay shell (1) is provided with a first limiting groove, one end of the spring piece (7) is fixedly connected with the first fixing piece (6), and the other end of the spring piece (7) penetrates through the first limiting groove and is fixedly connected with the second fixing piece.

5. A clapper-type insertion relay adapted for use with heavy loads as recited in claim 1, wherein: the bottom of the base (2) is provided with a key control pin, and the cross section of the key control pin is in any one shape of circle, square, regular hexagon and triangle.

6. A clapper-type insertion relay adapted for use with heavy loads as recited in claim 1, wherein: the leading-out end comprises a plurality of normally open contacts in a row and a plurality of normally closed contacts in a row, magnets (9) are arranged between the normally open contacts in the row and the normally closed contacts in the row, an arc extinguishing cover (10) is arranged between the normally open contacts in the same row or between the normally closed contacts in the same row, and the arc extinguishing cover (10) is bonded with the magnets (9) through epoxy resin.

7. A clapper-type insertion relay adapted for use with heavy loads as recited in claim 1, wherein: the lead-out end comprises a plane contact lead-out end and a plane contact, the plane contact is located in the base (2), the plane contact lead-out end is located outside the base (2), the plane contact lead-out end and the plane contact are connected through resistance welding, and the surface of the plane contact lead-out end is provided with a silver coating.

8. A socket for a clap type plug-in relay suitable for a heavy load according to claim 4, which comprises: socket shell (11), the top of socket shell (11) be provided with be used for with draw forth end (3) complex socket and be used for with pothook (4) complex draw-in groove (12), the both sides of socket shell (11) are provided with respectively and are used for with first stationary blade (6) and second stationary blade complex first slot (13) and second slot.

9. A socket for a slap-in type relay adapted for use with a heavy load according to claim 8, wherein: the clamping groove (12) comprises a first accommodating part and a second accommodating part which are communicated with each other, the second accommodating part is close to the bottom of the socket shell (11), and the aperture of the first accommodating part is smaller than that of the second accommodating part.

10. A socket for a slap-in type relay adapted for use with a heavy load according to claim 8, wherein: one side of the first slot (13) or the second slot is provided with a second limiting groove (14), and the second limiting groove (14) is matched with the barb (8).

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