CN209895991U

CN209895991U - Multi-contact relay

Info

Publication number: CN209895991U
Application number: CN201920719127.7U
Authority: CN
Inventors: 刘振伟
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-03
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to the technical field of relays, in particular to a multi-contact relay, which comprises an insulator, a driving mechanism, a conductive piece, two output terminals and two detection terminals, wherein the driving mechanism drives the conductive piece to move forward to conduct the two output terminals; the conductive piece is provided with a main guide piece and two elastic pieces, the main guide piece is used for contacting and conducting the two output terminals, and one ends of the two elastic pieces, which are far away from the main guide piece, are respectively used for conducting the two detection terminals; when the relay works, the driving mechanism drives the conductive piece to move, so that the main guide piece of the conductive piece is in contact with and conducts the two output terminals, the circuit between the two output terminals is conducted, and at the moment, the two detection terminals are not conducted; when the relay does not work, the driving mechanism drives the conductive piece to move reversely or resets the conductive piece to move reversely to conduct the two detection terminals, and a circuit between the two detection terminals is conducted; the working state of the relay can be accurately known by using the change of the detection signal between the two detection terminals.

Description

Multi-contact relay

Technical Field

The utility model relates to a relay technical field especially discloses a multi-contact relay.

Background

The relay is the automatic switch commonly used among various circuit control, and the relay is the safety switch commonly used of utilizing undercurrent control heavy current circuit break-make, avoids directly controlling the potential safety hazard that heavy current circuit brought, and in the use of relay, the relay can become invalid or damage and cause unable use, needs the operation personnel periodic detection, takes trouble hard, and it is extremely inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a multi-contact relay utilizes the operating condition that two detected signal changes between the terminal and then accurately learn the relay, need not whether the operation personnel regularly detects relay and normally works, and convenient to use reduces the use cost of relay.

In order to achieve the above object, the utility model discloses a multi-contact relay, including the insulator, set up in actuating mechanism, conductive piece, two output terminals and two detection terminals of insulator, actuating mechanism drives conductive piece forward movement and switches on two output terminals, actuating mechanism drives conductive piece backward movement or conductive piece resets backward movement and switches on two detection terminals; the conductive piece is provided with a main guide piece and two elastic pieces, the elastic pieces are formed by bending the main guide piece, the two elastic pieces are positioned on the same side of the main guide piece, the main guide piece is positioned between the two elastic pieces and is used for contacting and conducting the two output terminals, and one ends, far away from the main guide piece, of the two elastic pieces are respectively used for conducting the two detection terminals.

Preferably, the conductive piece includes a fixed end and an elastic end bent from the fixed end, the main conducting piece is disposed at an end of the elastic end away from the fixed end, the main conducting piece is provided with a moving point block for contacting and conducting the two output terminals, and the moving point block and the elastic piece are respectively located at two sides of the main conducting piece; the free end of the elastic sheet is provided with a contact bulge, the contact bulge is used for contacting and conducting the detection terminal, and the contact bulge is positioned on one side of the elastic sheet far away from the main guide sheet.

Preferably, actuating mechanism includes electro-magnet and armature, and the electro-magnet includes the insulating frame, solenoid, iron core and yoke, and the one end of insulating frame is equipped with inserts the post, and the one end of insulator is equipped with and is used for holding the jack of establishing the post of inserting, and the iron core runs through the insulating frame, and solenoid sets up around locating the insulating frame outside and surrounding the iron core, and the yoke is the L type, and the one end of yoke sets up in the other end of insulator and has fixed foot, and the other end of insulator is equipped with and is used for holding the fixed orifices of establishing fixed foot, and the one end of electrically conductive piece sets up in the other end of yoke, and armature sets up in the other end of electrically conductive piece, and the one end and the yoke contact of iron core, and the other end of.

Preferably, the yoke has a riveting hole, the riveting hole and the fixing pin are located at the same end of the yoke, the riveting hole is rectangular, the iron core has a riveting head accommodated in the riveting hole, the shape of the riveting head is matched with that of the riveting hole, and the yoke has an arc-shaped groove communicated with a corner of the riveting hole.

Preferably, the two output terminals and the two detection terminals are embedded and molded in the insulator, the output terminals and the detection terminals are provided with embedded holes located in the insulator, and fixing portions of the two detection terminals are located between the fixing portions of the two output terminals; the insulator comprises a first body and a second body matched with the first body, the first body is provided with a body part and a limiting part protruding from the body part, the output terminals protrude out of one end of the body part close to the limiting part and are bent to form first contact parts, and the first contact parts of the two output terminals are respectively positioned at two sides of the limiting part; the detection terminal protrudes out of the free end of the limiting part and is bent to form a second contact part, and the main guide sheet and the elastic sheet are positioned between the first contact part and the second contact part; the lead pins of the two output terminals respectively protrude out of two sides of the body part.

Preferably, the multi-contact relay further includes two arc extinguishing magnets and an insulating box fastened to the insulator, the driving mechanism, the conductive member, the two output terminals and the two detection terminals are located in the insulating box, the insulating box has two accommodating holes for accommodating the two arc extinguishing magnets respectively, and the two arc extinguishing magnets are used for elongating an arc generated before the main guide piece and the output terminals so as to extinguish the arc.

Preferably, the insulating box has a positioning column therein, the conductive member and the yoke have positioning holes for accommodating the positioning column, and the conductive member is located between the insulating box and the yoke.

Preferably, the insulation frame is provided with two power terminals, two ends of the electromagnetic coil are respectively conducted with the two power terminals, and the two power terminals and the two detection terminals are respectively and electrically connected with conductive cables protruding out of the insulation box; an output terminal, two detection terminal all have the connector lug of buckling, and the connector lug has the perforation that runs through the connector lug, and the perforation is used for holding and establishes electrically conductive cable.

Preferably, the multi-contact relay further includes an electrical connector located outside the insulating box, wherein one end of the conductive cable away from the power terminal and one end of the conductive cable away from the detection terminal are respectively disposed on the electrical connector, and the electrical connector has a ground wire.

Preferably, the moving point block and the output terminal are provided with contact heads for contact at one side close to each other, the contact heads are welded on the moving point block and the output terminal, each output terminal is provided with two contact heads, two contact heads are arranged at two ends of the moving point block, and the two contact heads at the same end of the moving point block are used for respectively contacting and conducting the two contact heads of the same output terminal.

The utility model has the advantages that: when the relay works, the driving mechanism drives the conductive piece to move, so that the main guide piece of the conductive piece is in contact with and conducts the two output terminals, the circuit between the two output terminals is conducted, and at the moment, the two detection terminals are not conducted; when the relay does not work, the driving mechanism drives the conductive piece to move reversely or resets the conductive piece to move reversely to conduct the two detection terminals, and a circuit between the two detection terminals is conducted; utilize the detected signal between two detection terminals to change and then accurately learn the operating condition of relay, need not whether the operation personnel regularly detects relay and normally works, convenient to use reduces the use cost of relay.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the partially exploded structure of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

fig. 4 is a schematic perspective view of the yoke and the iron core of the present invention.

The reference numerals include:

1-insulator 2-conductive piece 3-output terminal

4-detection terminal 5-leading piece 6-elastic piece

7-moving point block 8-contact bulge 9-armature

11-insulating frame 12-electromagnetic coil 13-iron core

14-yoke 15-inserting column 16-fixing foot

17-riveting hole 18-riveting head 19-arc groove

21-concave hole 22-embedding hole 23-body part

24-position-limiting portion 25-first contact portion 26-second contact portion

27-insulating box 28-arc extinguishing magnet 29-containing hole

31-positioning column 32-power terminal 33-conductive cable

34-electric connector 35-contact 36-connector lug

37-perforation.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Please refer to fig. 1 to 4, the utility model discloses a multi-contact relay, including insulator 1, insulator 1 adopts insulating plastics to make, sets up actuating mechanism, electrically conductive 2, two output terminal 3 and two detection terminal 4 on insulator 1, and actuating mechanism drive electrically conductive 2 forward motion switches on two output terminal 3, and actuating mechanism drive electrically conductive 2 reverse motion or electrically conductive 2 automatic re-setting reverse motion and then switch on two detection terminal 4.

The conductive piece 2 is provided with a main guide sheet 5 and two elastic sheets 6, the main guide sheet 5 and the two elastic sheets 6 are in an integrated structure, the elastic sheets 6 are formed by bending the main guide sheet 5, the two elastic sheets 6 are positioned at the same side of the main guide sheet 5, the main guide sheet 5 is positioned between the two elastic sheets 6, the main guide sheet 5 is used for isolating the two elastic sheets 6, the two elastic sheets 6 are prevented from being touched and interfered by each other due to elastic deformation in the using process, the main guide sheet 5 is used for contacting and conducting the two output terminals 3, and one ends, far away from the main guide sheet 5, of the two elastic sheets 6 are respectively used for conducting the two detection terminals 4.

When the relay works, the driving mechanism drives the conductive piece 2 to move, so that the main guide piece 5 of the conductive piece 2 is in contact with and conducts the two output terminals 3, the circuit between the two output terminals 3 is conducted, and at the moment, the two detection terminals 4 are not conducted; when the relay does not work, the driving mechanism drives the conductive piece 2 to move reversely or the conductive piece 2 resets to move reversely to conduct the two detection terminals 4, a circuit between the two detection terminals 4 is conducted, and at the moment, the two output terminals 3 are not conducted; utilize the detected signal change between two detection terminal 4 and then accurately learn the operating condition of relay, need not whether the operation personnel regularly detects relay and normally works, convenient to use reduces the use cost of relay.

Conductive piece 2 includes stiff end (not reference numeral in the figure) and from the elastic end (not reference numeral in the figure) that the stiff end formed of buckling of fixed end, conductive piece 2 adopts metal material to form, conductive piece 2's major structure shape is L type thin slice, main guide plate 5 sets up the one end of keeping away from the stiff end at the elastic end, can dismantle on the main guide plate 5 and be connected with moving point piece 7, moving point piece 7 adopts conductive metal material to make, moving point piece 7 is the straight strip of rectangle roughly, the both ends of moving point piece 7 are used for the contact respectively to switch on two output terminal 3, moving point piece 7, elastic piece 6 is located the upper and lower both sides of main guide plate 5 respectively, utilize main guide plate 5 to keep apart elastic piece 6 and moving point piece 7, avoid both to take place to touch the interference in the.

Have contact protrusion 8 on the free end of flexure strip 6, contact protrusion 8 is used for the contact to switch on detection terminal 4, and contact protrusion 8 has the protruding face of sphere, and the protruding face of sphere is used for contact detection terminal 4, avoids taking place pointed end between contact protrusion 8 and the detection terminal 4 and discharges, and contact protrusion 8 is located flexure strip 6 and keeps away from one side of leading piece 5.

The driving mechanism comprises an electromagnet and an armature 9, the armature 9 is made of a magnetic conductive metal material, the electromagnet comprises an insulating frame 11, an electromagnetic coil 12, an iron core 13 and a yoke 14, one end of the insulating frame 11 is provided with an inserting column 15, one end of the insulator 1 is provided with a jack used for accommodating the inserting column 15, when the insulating frame 11 is assembled with the insulator 1, the inserting column 15 is inserted into the jack, rapid installation alignment of the insulating frame 11 and the insulator 1 is achieved, and assembly efficiency of the insulating frame 11 and the insulator 1 is improved.

Iron core 13 runs through insulation frame 11, the both ends of iron core 13 are the both ends that stretch out insulation frame 11 respectively suddenly, solenoid 12 is around establishing in the insulation frame 11 outside and surrounding iron core 13 and setting up, yoke 14 is the L type, the one end setting of yoke 14 is on the other end of insulator 1 and has fixed foot 16, the other end of insulator 1 is equipped with the fixed orifices that is used for holding and establishes fixed foot 16, in this embodiment, the quantity of fixed foot 16 is two, the quantity of fixed orifices is two, fixed foot 16 is last to have the barb of interfering with insulator 1, ensure that insulation frame 11 and insulator 1 link together firmly.

One end of the conductive piece 2 is arranged at the other end of the yoke 14, the armature 9 is arranged at the other end of the conductive piece 2, one end of the iron core 13 is in contact with the yoke 14, and the other end of the iron core 13 is used for attracting the armature 9 so that the armature 9 is in contact with the other end of the iron core 13 and one end of the yoke 14 far away from the fixing pin 16, and therefore the yoke 14, the armature 9 and the iron core 13 form a closed loop, and the magnetic performance of the electromagnet is improved.

The yoke 14 is provided with a riveting hole 17, the riveting hole 17 and the fixing pin 16 are located at the same end of the yoke 14, the riveting hole 17 is rectangular, the iron core 13 is provided with a riveting head 18 accommodated in the riveting hole 17, the shape of the riveting head 18 is matched with that of the riveting hole 17, and the yoke 14 is provided with an arc-shaped groove 19 communicated with the corner of the riveting hole 17. The rivet joint 18 is provided with a concave hole 21, when the iron core 13 and the yoke 14 are assembled, an external riveting machine protrudes into the concave hole 21, so that the rivet joint 18 is broken and riveted with the yoke 14, and the broken residual material of the rivet joint 18 is extruded into the arc-shaped groove 19, so that the iron core 13 and the yoke 14 are stably riveted together. In this embodiment, the iron core 13 is formed by laminating three magnetic conductive sheets.

Two output terminal 3 and two detection terminal 4 all inlays the shaping (english full name insert molding) in insulator 1, and the fixed part of two detection terminal 4 all is located between the fixed part of two output terminal 3, and output terminal 3, detection terminal 4 all have the embedding hole 22 that is located insulator 1, and during the embedding shaping, fused insulating material gets into in embedding hole 22, can fix a position output terminal 3, detection terminal 4 on insulator 1 firmly after the cooling, avoids the terminal to remove relative insulator 1.

The insulator 1 comprises a first body and a second body matched with the first body, namely the insulator 1 is of a split structure, and one insulator 1 is split into two parts to be combined, so that the manufacturing of the insulator 1 and the subsequent assembly operation of the insulator 1 and other components are facilitated. The first body has a main body 23 and a limiting portion 24 protruding from the main body 23, the output terminals 3 protrude from one end of the main body 23 close to the limiting portion 24 and are bent to form first contact portions 25, the first contact portions 25 of the two output terminals 3 are respectively located at two sides of the limiting portion 24, the limiting portion 24 is used to separate the first contact portions 25 of the two output terminals 3, and the first contact portions 25 of the two output terminals 3 are prevented from interfering with each other.

The detection terminal 4 protrudes out of the free end of the limiting part 24 and is bent to form a second contact part 26, the main guide piece 5 and the elastic piece 6 are located between the first contact part 25 and the second contact part 26, the limiting conductive piece 2 is blocked by the first contact part 25 and the second contact part 26, the situation that the relay cannot be normally used due to excessive movement of the conductive piece 2 is prevented, and the guide pins of the two output terminals 3 respectively protrude out of the left side and the right side of the body part 23.

The multi-contact relay further comprises two arc extinguishing magnets 28 and an insulating box 27 buckled with the insulator 1, the driving mechanism, the conductive piece 2, the two arc extinguishing magnets 28, the two output terminals 3 and the two detection terminals 4 are all located in the insulating box 27, and the driving mechanism, the conductive piece 2, the two arc extinguishing magnets 28, the two output terminals 3 and the two detection terminals 4 are protected by the insulating box 27, so that the relay is prevented from being damaged due to the fact that external objects touch the accessories of the relay.

The insulating case 27 has two receiving holes 29 for receiving two quenching magnets 28 therein, preferably, the quenching magnets 28 are in interference fit with the receiving holes 29 to prevent the quenching magnets 28 from falling off the insulating case 27, and the two quenching magnets 28 are used to elongate the arc generated before the main conductive piece 5 and the output terminal 3 so as to quench the arc.

The insulating box 27 is provided with a positioning column 31, the conductive piece 2 and the yoke 14 are provided with positioning holes for accommodating the positioning column 31, and the conductive piece 2 is positioned between the insulating box 27 and the yoke 14. In the assembly process of the relay, the positioning column 31 protrudes into the positioning hole of the conductive piece 2 and the positioning hole of the yoke 14, so that the conductive piece 2 and the yoke 14 are accurately positioned, and the conductive piece 2 is clamped by the cooperation of the insulating box 27 and the yoke 14, so that the conductive piece 2 is prevented from falling off from the yoke 14 to cause abnormal use.

The insulation frame 11 is provided with two power terminals 32, two ends of the electromagnetic coil 12 are respectively conducted with the two power terminals 32, the power terminals 32 are used for supplying power to the electromagnetic coil 12, and the two power terminals 32 and the two detection terminals 4 are respectively and electrically connected with a conductive cable 33 which protrudes out of the insulation box 27; one output terminal 3 and both detection terminals 4 each have a bent terminal 36, and the terminal 36 has a through hole 37 penetrating the terminal 36, and the through hole 37 is used for accommodating the conductive cable 33.

The multi-contact relay further includes an electrical connector 34 located outside the insulating case 27, wherein an end of the conductive cable 33 away from the power terminal 32 and an end of the conductive cable 33 away from the detection terminal 4 are respectively disposed on the electrical connector 34, and the electrical connector 34 has a ground line (not numbered). The electric connector 34 is used for being plugged into a butting connector on an external circuit board, so that the relay is quickly conducted with a main circuit on the external circuit board, and the installation efficiency of the relay is improved.

Move some piece 7, one side that output terminal 3 is close to each other all is equipped with the contact 35 that is used for the contact, contact 35 spot welding is at moving some piece 7, output terminal 3, all have two contact 35 on each output terminal 3, move some 7 both ends and all have two contact 35, move some 7 two contact 35 with the one end be used for contacting respectively and switch on two contact 35 of same output terminal 3, ensure to contact steadily between the relay and switch on, avoid because of moving some 7 and output terminal 3 can not normal contact switch on.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A multi-contact relay comprises an insulator, a driving mechanism, a conductive piece, two output terminals and two detection terminals, wherein the driving mechanism, the conductive piece, the two output terminals and the two detection terminals are arranged on the insulator; the method is characterized in that: the conductive piece is provided with a main guide piece and two elastic pieces, the elastic pieces are formed by bending the main guide piece, the two elastic pieces are positioned on the same side of the main guide piece, the main guide piece is positioned between the two elastic pieces and is used for contacting and conducting the two output terminals, and one ends, far away from the main guide piece, of the two elastic pieces are respectively used for conducting the two detection terminals.

2. The multi-contact relay according to claim 1, characterized in that: the conductive piece comprises a fixed end and an elastic end formed by bending from the fixed end, the main guide piece is arranged at one end of the elastic end, which is far away from the fixed end, the main guide piece is provided with a moving point block, the moving point block is used for contacting and conducting the two output terminals, and the moving point block and the elastic piece are respectively positioned at two sides of the main guide piece; the free end of the elastic sheet is provided with a contact bulge, the contact bulge is used for contacting and conducting the detection terminal, and the contact bulge is positioned on one side of the elastic sheet far away from the main guide sheet.

3. The multi-contact relay according to claim 1, characterized in that: actuating mechanism includes electro-magnet and armature, the electro-magnet includes the insulating frame, solenoid, iron core and yoke, the one end of insulating frame is equipped with inserts the post, the one end of insulator is equipped with and is used for holding the jack of establishing the post of inserting, the iron core runs through the insulating frame, solenoid is around locating the insulating frame outside and surrounding the iron core setting, the yoke is the L type, the one end of yoke sets up in the other end of insulator and has fixed foot, the other end of insulator is equipped with and is used for holding the fixed orifices of establishing fixed foot, the one end of electrically conductive piece sets up in the other end of yoke, armature sets up in the other end of electrically conductive piece, the one end and the yoke contact of iron core, the other end of iron core is used for attracting armature so that the other.

4. The multi-contact relay according to claim 3, characterized in that: the iron yoke is provided with riveting holes, the riveting holes and the fixing pins are located at the same end of the iron yoke, the riveting holes are rectangular, the iron core is provided with riveting heads accommodated in the riveting holes, the shape of the riveting heads is matched with that of the riveting holes, and the iron yoke is provided with arc-shaped grooves communicated with corners of the riveting holes.

5. The multi-contact relay according to claim 3, characterized in that: the two output terminals and the two detection terminals are embedded and molded in the insulator, the output terminals and the detection terminals are provided with embedded holes in the insulator, and the fixing parts of the two detection terminals are located between the fixing parts of the two output terminals; the insulator comprises a first body and a second body matched with the first body, the first body is provided with a body part and a limiting part protruding from the body part, the output terminals protrude out of one end of the body part close to the limiting part and are bent to form first contact parts, and the first contact parts of the two output terminals are respectively positioned at two sides of the limiting part; the detection terminal protrudes out of the free end of the limiting part and is bent to form a second contact part, and the main guide sheet and the elastic sheet are positioned between the first contact part and the second contact part; the lead pins of the two output terminals respectively protrude out of two sides of the body part.

6. The multi-contact relay according to claim 5, wherein: the multi-contact relay further comprises two arc extinguishing magnets and an insulating box buckled with the insulator, the driving mechanism, the conductive piece, the two arc extinguishing magnets, the two output terminals and the two detection terminals are all located in the insulating box, two accommodating holes for accommodating the two arc extinguishing magnets are formed in the insulating box respectively, and the two arc extinguishing magnets are used for lengthening electric arcs generated before the main guide piece and the output terminals so that the electric arcs are extinguished.

7. The multi-contact relay according to claim 6, wherein: the insulating box is internally provided with a positioning column, the conductive piece and the yoke are provided with positioning holes for accommodating the positioning column, and the conductive piece is positioned between the insulating box and the yoke.

8. The multi-contact relay according to claim 6, wherein: the insulation frame is provided with two power supply terminals, two ends of the electromagnetic coil are respectively conducted with the two power supply terminals, and the two power supply terminals and the two detection terminals are respectively and electrically connected with conductive cables which protrude out of the insulation box; an output terminal, two detection terminal all have the connector lug of buckling, and the connector lug has the perforation that runs through the connector lug, and the perforation is used for holding and establishes electrically conductive cable.

9. The multi-contact relay according to claim 8, wherein: the multi-contact relay further comprises an electric connector positioned outside the insulating box, one end of the conductive cable, which is far away from the power supply terminal, and one end of the conductive cable, which is far away from the detection terminal, are respectively arranged on the electric connector, and the electric connector is provided with a grounding wire.

10. The multi-contact relay according to claim 2, characterized in that: move some piece, output terminal and all be equipped with the contact that is used for the contact in one side that is close to each other, contact spot welding is in moving some piece, output terminal, and each output terminal has two contact, moves some piece both ends and all has two contacts, moves some two contacts of piece same end and is used for contacting respectively and switches on two contacts of same output terminal.