阅读说明：本技术 一种内置电路板转接式电磁继电器 (Built-in circuit board switching formula electromagnetic relay ) 是由 刘振伟 于 2021-02-07 设计创作，主要内容包括：本发明涉及继电器技术领域,尤其涉及一种内置电路板转接式电磁继电器,包括基座,装设于基座的电磁线圈以及复位弹片,基座靠近电磁线圈顶部转动设置有衔铁,电磁线圈用于驱动衔铁转动,复位弹片用于驱动衔铁恢复原位,基座设置有电路板,电路板设置有突伸出基座正极片与负极片,正极片与负极片用于导通外界电源,电路板设置有整流桥与压敏电阻器,压敏电阻器并联于整流桥,整流桥输出端与电磁线圈连接,衔铁一端设置有接触组件,基座内设置有第一端子组与第二端子组,电磁线圈通过吸引或排斥衔铁驱使接触组件与第一端子组、第二端子组之间闭合或断开。结构紧凑且设计合理,转换动作连贯,工作稳定可靠,使用方便,极大提升继电器的使用性能。(The invention relates to the technical field of relays, in particular to a built-in circuit board switching type electromagnetic relay, which comprises a base, an electromagnetic coil and a reset elastic sheet, wherein the electromagnetic coil is arranged on the base, the electromagnetic coil is arranged near the top of the electromagnetic coil and is used for driving the armature to rotate, the reset elastic sheet is used for driving the armature to recover the original position, the base is provided with a circuit board, the circuit board is provided with a positive plate and a negative plate which protrude out of the base and are used for conducting an external power supply, the circuit board is provided with a rectifier bridge and a piezoresistor, the piezoresistor is connected in parallel with the rectifier bridge, the output end of the rectifier bridge is connected with the electromagnetic coil, one end of the armature is provided with a contact assembly, a first terminal set, the second terminal set is closed or opened. Compact structure and reasonable in design, the conversion action links up, and job stabilization is reliable, and convenient to use greatly promotes the performance of relay.)

1. The utility model provides a built-in circuit board switching formula electromagnetic relay, includes the base, installs in the solenoid of base and the shell fragment that resets, the top that the base is close to solenoid is rotated and is provided with armature, solenoid is used for driving armature to rotate, the shell fragment that resets is used for driving armature to resume normal position, its characterized in that: the base is provided with the circuit board, the circuit board is provided with the positive plate and the negative plate that stretch out the base suddenly, positive plate and negative plate are used for switching on external power, the circuit board is provided with rectifier bridge and piezoresistor, piezoresistor connects in parallel in the rectifier bridge, the output and the solenoid of rectifier bridge are connected, the one end of armature is provided with contact assembly, be provided with the same first terminal group of structure and second terminal group in the base, solenoid orders about the closure or the disconnection between contact assembly and first terminal group, second terminal group through attracting or repelling armature.

2. The built-in circuit board changeover type electromagnetic relay according to claim 1, characterized in that: the contact assembly comprises a pushing seat, the pushing seat is provided with a first elastic spring leaf and a second elastic spring leaf which are identical in structure, the pushing seat is provided with a first inserting hole and a second inserting hole for inserting the first elastic spring leaf and the second elastic spring leaf, one end of the first elastic spring leaf is provided with a clamping piece, two sides of the clamping piece are respectively provided with a butting column, the pushing seat is provided with a clamping port matched and connected with the clamping piece, the other end of the first elastic spring leaf is provided with an assembling plate, the middle part of the assembling plate is provided with a riveting column, the first elastic spring leaf is provided with a riveting hole matched and connected with the riveting column, two sides of the assembling plate are respectively provided with a first assembling hole and a second assembling hole, the first assembling hole and the second assembling hole are respectively connected with a first moving contact and a second moving contact, a channel partition plate is arranged between the base and the base close to the first terminal group and the second terminal group, the first terminal group comprises a first Z-shaped terminal and a second Z-shaped terminal, a third assembling hole and a fourth assembling hole are formed in the first Z-shaped terminal and the second Z-shaped terminal respectively, the third assembling hole and the fourth assembling hole are connected with a first static contact and a second static contact respectively, and the first static contact and the second static contact are arranged opposite to the first moving contact and the second moving contact respectively.

3. The built-in circuit board changeover type electromagnetic relay according to claim 2, characterized in that: the top of the pushing seat is provided with an inserting groove, the armature is provided with an inserting block which is in matched connection with the inserting groove, two sides of the armature are provided with limiting blocks for blocking the inserting block, the base is further provided with a yoke, the top of the yoke is concavely provided with an embedding transverse groove, two sides of the armature are provided with embedding vertical grooves which are in matched connection with the embedding transverse groove, and the embedding transverse groove and the embedding vertical groove are vertically arranged.

4. The built-in circuit board changeover type electromagnetic relay according to claim 3, characterized in that: the reset spring plate is connected between the pushing seat and the armature, the armature is provided with a through hole for installing the reset spring plate, the reset spring plate is provided with a clamping block, the yoke is provided with a clamping groove connected with the clamping block in a matched mode, both sides of the yoke are provided with positioning clamping grooves, and the base is provided with a positioning clamping plate connected with the positioning clamping grooves in a matched mode.

5. The built-in circuit board changeover type electromagnetic relay according to claim 4, characterized in that: the electromagnetic coil comprises a framework, an iron core is arranged in the framework, a coil is arranged outside the framework, the framework comprises a first assembly plate, a hollow column and a second assembly plate which are integrally formed, the coil is wound on the hollow column, the first assembly plate is provided with a clamping groove and a stop block which is arranged opposite to the clamping groove, the stop block and a circuit board are clamped, the second assembly plate is provided with a connecting groove, and the yoke is provided with a connecting convex block which is connected with the connecting groove in a matched mode.

6. The built-in circuit board changeover type electromagnetic relay according to claim 1, characterized in that: the base is provided with a baffle plate used for separating the electromagnetic coil and the contact assembly at intervals.

7. The built-in circuit board changeover type electromagnetic relay according to claim 2, characterized in that: a plurality of mounting grooves are formed in the base at intervals, and the static contacts of the first terminal group and the second terminal group are correspondingly connected with the mounting grooves.

8. The built-in circuit board changeover type electromagnetic relay according to claim 7, characterized in that: the interval is provided with the first connecting hole of a plurality of in the base, each Z shape terminal of first terminal group, second terminal group corresponds and is connected with a plurality of first connecting hole, the bottom of base is provided with a plurality of parting bead that is used for separating a plurality of first connecting hole.

9. The built-in circuit board changeover type electromagnetic relay according to claim 1, characterized in that: and a second connecting hole and a third connecting hole are formed in the base, and the positive plate and the negative plate are respectively connected with the second connecting hole and the third connecting hole.

10. The built-in circuit board changeover type electromagnetic relay according to claim 1, characterized in that: the base is made of flame-retardant insulating plastic.

Technical Field

The invention relates to the technical field of relays, in particular to a built-in circuit board switching type electromagnetic relay.

Background

Relays, as "reclosers" in electrical circuits, have been one of the essential basic components in many electronic devices. In actual life, electric power mainly divide into direct current and alternating current two kinds of forms, because the direct current has convenient to use, the characteristics of being convenient for control, the wide application is in the control of various electrical components such as relay, when the electric power of external supply is the alternating current, just need utilize power conversion mechanism to convert the alternating current into the direct current this moment, the power conversion mechanism structure of current relay is complicated, the transition action continuity is poor, lead to work unstable reliable, it is extremely inconvenient to use, is unfavorable for promoting relay performance.

Disclosure of Invention

The invention aims to provide a built-in circuit board switching type electromagnetic relay which is compact in structure, reasonable in design, continuous in switching action, stable and reliable in work, convenient to use and capable of greatly improving the service performance of the relay, aiming at the defects of the prior art.

In order to achieve the purpose, the switching type electromagnetic relay with the built-in circuit board comprises a base, an electromagnetic coil and a reset elastic sheet, wherein the electromagnetic coil and the reset elastic sheet are arranged on the base, the electromagnetic coil is arranged on the top, close to the electromagnetic coil, of the base in a rotating mode, the electromagnetic coil is used for driving the armature to rotate, the reset elastic sheet is used for driving the armature to recover to the original position, the base is provided with a circuit board, the circuit board is provided with a positive plate and a negative plate which protrude out of the base, the positive plate and the negative plate are used for conducting an external power supply, the circuit board is provided with a rectifier bridge and a piezoresistor, the piezoresistor is connected with the rectifier bridge in parallel, the output end of the rectifier bridge is connected with the electromagnetic coil, one end of the armature is provided with a contact assembly, a first terminal group, And closing or opening between the second terminal sets.

Preferably, the contact assembly comprises a pushing seat, the pushing seat is provided with a first elastic spring piece and a second elastic spring piece which have the same structure, the pushing seat is provided with a first plug hole and a second plug hole for plugging the first elastic spring piece and the second elastic spring piece, one end of the first elastic spring piece is provided with a clamping piece, two sides of the clamping piece are respectively provided with a butting column, the pushing seat is provided with a clamping port matched and connected with the clamping piece, the other end of the first elastic spring piece is provided with an assembling plate, the middle part of the assembling plate is provided with a riveting column, the first elastic spring piece is provided with a riveting hole matched and connected with the riveting column, two sides of the assembling plate are respectively provided with a first assembling hole and a second assembling hole, the first assembling hole and the second assembling hole are respectively connected with a first moving contact and a second moving contact, and a channel partition plate is arranged between the base and the first terminal group and the second terminal group, the first terminal group comprises a first Z-shaped terminal and a second Z-shaped terminal, a third assembling hole and a fourth assembling hole are formed in the first Z-shaped terminal and the second Z-shaped terminal respectively, the third assembling hole and the fourth assembling hole are connected with a first static contact and a second static contact respectively, and the first static contact and the second static contact are arranged opposite to the first moving contact and the second moving contact respectively.

Preferably, the top of the pushing seat is provided with an insertion groove, the armature is provided with an insertion block in matching connection with the insertion groove, two sides of the armature are provided with limit blocks for stopping the insertion block, the base is further provided with a yoke, the top of the yoke is concavely provided with an embedding transverse groove, two sides of the armature are provided with embedding vertical grooves in matching connection with the embedding transverse groove, and the embedding transverse groove and the embedding vertical groove are vertically arranged.

Preferably, the reset elastic sheet is connected between the pushing seat and the armature, the armature is provided with a through hole for installing the reset elastic sheet, the reset elastic sheet is provided with a clamping block, the yoke is provided with a clamping groove connected with the clamping block in a matching manner, both sides of the yoke are provided with positioning clamping grooves, and the base is provided with a positioning clamping plate connected with the positioning clamping grooves in a matching manner.

Preferably, the electromagnetic coil comprises a framework, an iron core is arranged in the framework, a coil is arranged outside the framework, the framework comprises a first assembling plate, a hollow column and a second assembling plate which are integrally formed, the coil is wound on the hollow column, the first assembling plate is provided with a clamping groove and a stop block which is arranged opposite to the clamping groove, the clamping groove and the stop block are clamped with the circuit board, the second assembling plate is provided with a connecting groove, and the yoke is provided with a connecting convex block which is connected with the connecting groove in a matched mode.

Preferably, the base is provided with a baffle for spacing apart the electromagnetic coil from the contact assembly.

Preferably, a plurality of mounting grooves are formed in the base at intervals, and the fixed contacts of the first terminal group and the second terminal group are correspondingly connected with the mounting grooves.

Preferably, a plurality of first connection holes are formed in the base at intervals, each Z-shaped terminal of the first terminal group and the second terminal group is correspondingly connected with the plurality of first connection holes, and a plurality of parting strips for separating the plurality of first connection holes are arranged at the bottom of the base.

Preferably, a second connecting hole and a third connecting hole are formed in the base, and the positive plate and the negative plate are respectively connected with the second connecting hole and the third connecting hole.

Preferably, the base is made of flame-retardant insulating plastic.

The invention has the beneficial effects that: the built-in circuit board switching type electromagnetic relay comprises a base, an electromagnetic coil and a reset elastic sheet, wherein the electromagnetic coil and the reset elastic sheet are installed on the base, the top of the base, which is close to the electromagnetic coil, is rotated to be provided with an armature, the electromagnetic coil is used for driving the armature to rotate, the reset elastic sheet is used for driving the armature to recover the original position, the base is provided with a circuit board, the circuit board is provided with a positive plate and a negative plate which protrude out of the base, the positive plate and the negative plate are used for conducting an external power supply, the circuit board is provided with a rectifier bridge and a piezoresistor, the piezoresistor is connected in parallel with the rectifier bridge, the output end of the rectifier bridge is connected with the electromagnetic coil, one end of the armature is provided with a contact component, a first terminal group and a, And closing or opening between the second terminal sets.

When the relay is in actual use, an external alternating current power supply switches on the circuit board through the positive plate and the negative plate, and then the alternating current voltage input by the alternating current power supply is converted into the direct current voltage output by the rectifier bridge through the rectification function of the rectifier bridge, the direct current voltage output by the rectifier bridge is applied to the electromagnetic coil, so that the electromagnetic coil is electrified, the electromagnetic coil and the armature are attracted and closed, the armature further drives the contact assembly, the contact assembly is enabled to be rapidly responded, the first terminal set and the second terminal set are mutually closed, the effect that the relay is simultaneously switched on and switched on a plurality of circuits can be realized, when the positive plate and the negative plate are disconnected with the external alternating current power supply, the electromagnetic coil is not electrified, the reset elastic sheet is used for driving the armature to restore the original position, the contact assembly is enabled to be rapidly responded, the first terminal set and the second terminal set are mutually disconnected, when the, the piezoresistor realizes the short circuit to the rectifier bridge, avoids the relay input exceeding the rated input voltage and burning the rectifier bridge, realizes the piezoresistor protection rectifier bridge, and then prolongs the service life of the relay. The invention has the advantages of compact structure, reasonable design, coherent conversion action, stable and reliable work and convenient use, and greatly improves the service performance of the relay.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram after the housing is hidden according to the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is an exploded view of another aspect of the present invention.

The reference numerals include:

1-base 11-positioning clamping plate 12-baffle

13-mounting groove 14-first connecting hole 15-parting bead

16-second connecting hole 17-third connecting hole 18-shell

181 mounting hole 182 clamping hole 183 positioning ridge plate

19-Block

2-electromagnetic coil 21-skeleton 211-first assembly plate

212-hollow column 213-second assembling plate 214-card slot

215-stop block 216-connecting groove

22-iron core 23-coil

3-reset spring plate 31-position clamping block

4-armature 41-plug block 42-limit block

43-Embedded in vertical groove 44-through hole

5-circuit board 51-positive pole piece 52-negative pole piece

53 rectifier bridge 54 varistor

6-contact component 61-pushing seat 611-clamping opening

612-insertion groove 613-positioning groove

62-first elastic spring 621-clamping piece 622-abutting column

623 assembly plate 624 rivet post 625 rivet hole

626-first assembling hole 627-second assembling hole 628-first moving contact

629 second moving contact

63-second spring leaf 64-first plug hole 65-second plug hole

7-first terminal group 71-first Z terminal 72-second Z terminal

73-third assembling hole 74-fourth assembling hole 75-first static contact

76-second stationary contact

8-second terminal group 9-channel partition

10-yoke 101-embedded transverse groove 102-clamping groove

103-positioning clamping groove 104-connecting projection.

Detailed Description

The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1 to 4, the switching type electromagnetic relay with built-in circuit board of the present invention includes a base 1, an electromagnetic coil 2 and a reset spring 3 mounted on the base 1, the base 1 is rotatably provided with an armature 4 near the top of the electromagnetic coil 2, the electromagnetic coil 2 is used for driving the armature 4 to rotate, the reset spring 3 is used for driving the armature 4 to recover to the original position, the base 1 is provided with a circuit board 5, the circuit board 5 is provided with a positive plate 51 and a negative plate 52 protruding out of the base 1, the positive plate 51 and the negative plate 52 are used for conducting an external power supply, the circuit board 5 is provided with a rectifier bridge 53 and a piezoresistor 54, the piezoresistor 54 is connected in parallel to the rectifier bridge 53, the output end of the rectifier bridge 53 is connected with the electromagnetic coil 2, one end of the armature 4 is provided with a contact assembly 6, the base 1 is provided with a first terminal, the electromagnetic coil 2 actuates the contact assembly 6 to close or open the first and second terminal sets 7, 8 by attracting or repelling the armature 4.

When the relay is actually used, an external alternating current power supply switches on the circuit board 5 through the positive plate 51 and the negative plate 52, and then the alternating current voltage input by the alternating current power supply is converted into the direct current voltage output by the rectifier bridge 53 through the rectification function of the rectifier bridge 53, the direct current voltage output by the rectifier bridge 53 is applied to the electromagnetic coil 2, so that the electromagnetic coil 2 is electrified, the electromagnetic coil 2 and the armature 4 are attracted and closed, the armature 4 further drives the contact assembly 6, the contact assembly 6 is rapidly responded and is mutually closed with the first terminal group 7 and the second terminal group 8, the effect that the relay is switched on and switched on a plurality of circuits at the same time can be realized, when the positive plate 51 and the negative plate 52 are disconnected with the external alternating current power supply, the electromagnetic coil 2 is not electrified any more, the reset elastic piece 3 is used for driving the armature 4 to recover the original position, and the contact assembly 6 is also rapidly responded and is, when the voltage input by the alternating current power supply exceeds the rated input voltage of the relay, the piezoresistor 54 realizes short circuit of the rectifier bridge 53, the rectifier bridge 53 is prevented from being burnt by the fact that the voltage input by the relay exceeds the rated input voltage, the piezoresistor 54 protects the rectifier bridge 53, and the service life of the relay is further prolonged. The invention has the advantages of compact structure, reasonable design, coherent conversion action, stable and reliable work and convenient use, and greatly improves the service performance of the relay.

As shown in fig. 2, 3 and 4, the contact assembly 6 of the present embodiment includes a pushing base 61, the pushing base 61 is provided with a first elastic spring piece 62 and a second elastic spring piece 63 having the same structure, the pushing base 61 is provided with a first inserting hole 64 and a second inserting hole 65 for inserting the first elastic spring piece 62 and the second elastic spring piece 63, one end of the first elastic spring piece 62 is provided with a clamping piece 621, both sides of the clamping piece 621 are provided with abutting columns 622, the pushing base 61 is provided with a clamping opening 611 connected with the clamping piece 621 in a matching manner, the other end of the first elastic spring piece 62 is provided with an assembling plate 623, the middle of the assembling plate 623 is provided with a riveting column 624, the first elastic spring piece 62 is provided with a riveting hole 625 connected with the riveting column 624 in a matching manner, both sides of the assembling plate 623 are respectively provided with a first assembling hole 626 and a second assembling hole 627, the first assembly hole 626 and the second assembly hole 627 are respectively connected with a first moving contact 628 and a second moving contact 629, a channel partition 9 is arranged between the base 1 and the first terminal group 7 and the second terminal group 8, the first terminal group 7 includes a first Z-shaped terminal 71 and a second Z-shaped terminal 72, the first Z-shaped terminal 71 and the second Z-shaped terminal 72 are respectively provided with a third assembly hole 73 and a fourth assembly hole 74, the third assembly hole 73 and the fourth assembly hole 74 are respectively connected with a first static contact 75 and a second static contact 76, and the first static contact 75 and the second static contact 76 are respectively arranged opposite to the first moving contact 628 and the second moving contact 629. Specifically, by mutually attracting and closing or repelling and disconnecting the electromagnetic coil 2 and the armature 4, the armature 4 further drives the contact assembly 6, the armature 4 is firmly inserted into the push seat 61, two sides of the push seat 61 are respectively inserted into the first elastic spring piece 62 and the second elastic spring piece 63 through the first insertion hole 64 and the second insertion hole 65, and are correspondingly tightly abutted and clamped with the clamping port 611 of the push seat 61 through the clamping piece 621, and then the abutting columns 622 on two sides of the clamping piece 621 are tightly abutted with the inner wall of the push seat 61, so that the contact area is increased, the position fixing effect is good, the situation that the first elastic spring piece 62 and the second elastic spring piece 63 are inserted into the push seat 61 and are loosened and vibrated is effectively avoided, the connection stability is further improved, and the assembling plate 623 is fixedly installed at the end part of the first elastic spring piece 62 through the fixed riveting between the riveting column 624 and the riveting hole 625, the assembling plate 623 is connected with a first moving contact 628 and a second moving contact 629 through a first assembling hole 626 and a second assembling hole 627 respectively, the installation is simple and convenient, the first terminal group 7 and the second terminal group 8 have the same structure, the first terminal group 7 comprises a first Z-shaped terminal 71 and a second Z-shaped terminal 72, the first Z-shaped terminal 71 is connected with a first fixed contact 75 through a third assembling hole 73, the second Z-shaped terminal 72 is connected with a second fixed contact 76 through a fourth assembling hole 74, the contact surface between each moving contact and each fixed contact is large and firm in contact, the action is sensitive and the response is rapid, electric arcs generated when the moving contacts and the fixed contacts are attracted and disconnected can be quickly absorbed and extinguished, the contacts are prevented from being burnt, and the service life of the relay is greatly prolonged.

As shown in fig. 2, 3 and 4, an insertion groove 612 is formed in the top of the pushing seat 61 of this embodiment, the armature 4 is provided with an insertion block 41 in matching connection with the insertion groove 612, both sides of the armature 4 are provided with limit blocks 42 for stopping the insertion block 41, the base 1 is further provided with a yoke 10, the top of the yoke 10 is concavely provided with an insertion transverse groove 101, both sides of the armature 4 are provided with insertion vertical grooves 43 in matching connection with the insertion transverse groove 101, and the insertion transverse groove 101 and the insertion vertical grooves 43 are vertically arranged. Specifically, the armature 4 is inserted into the insertion groove 612 through the insertion block 41 in a matching manner, the insertion block 41 is blocked by abutting against the limiting block 42, the position of the insertion block 41 is effectively fixed, the stable connection between the armature 4 and the push seat 61 is realized, the yoke 10 is connected with the insertion vertical groove 43 through the insertion transverse groove 101 in a matching manner, the insertion transverse groove 101 and the insertion vertical groove 43 are vertically arranged, the movable clamping connection between the yoke 10 and the armature 4 is realized, the assembly is convenient, and when the electromagnetic coil 2 attracts the armature 4, the armature 4 rotates around the yoke 10 within a certain range.

As shown in fig. 2, 3 and 4, the reset spring 3 of the present embodiment is connected between the pushing seat 61 and the armature 4, the armature 4 is provided with a through hole 44 for installing the reset spring 3, the reset spring 3 is provided with a locking block 31, the yoke 10 is provided with a locking groove 102 connected to the locking block 31 in a matching manner, both sides of the yoke 10 are provided with positioning locking grooves 103, and the base 1 is provided with a positioning locking plate 11 connected to the positioning locking grooves 103 in a matching manner. Specifically, the reset spring 3 passes through the through hole 44, one elastic end of the reset spring 3 is connected to the armature 4, the other elastic end of the reset spring 3 is connected to the pushing seat 61, the body of the reset spring 3 is tightly abutted to the clamping groove 102 of the yoke 10 through the clamping block 31, the reset spring 3 is effectively prevented from loosening and falling off from between the pushing seat 61 and the armature 4, when the electromagnetic coil 2 attracts the armature 4, the armature 4 rotates relative to the yoke 10, and the rotating armature 4 extrudes the reset spring 3, so that the reset spring 3 has elastic restoring force; after the electromagnetic coil 2 is powered off, the reset spring 3 drives the armature 4 to rotate reversely under the action of the elastic restoring force so as to restore the original position, and the yoke 10 is ensured to be stably positioned on the base 1 by utilizing the mutual matching of the positioning clamping groove 103 and the positioning clamping plate 11, so that the influence on the normal use of the relay caused by the relative movement between the yoke 10 and the base 1 is prevented.

As shown in fig. 3 and 4, the electromagnetic coil 2 of the present embodiment includes a frame 21, an iron core 22 is installed in the frame 21, a coil 23 is installed outside the frame 21, the frame 21 includes a first assembly plate 211, a hollow column 212, and a second assembly plate 213 that are integrally formed, the coil 23 is wound around the hollow column 212, the first assembly plate 211 is provided with a slot 214 and a stopper 215 that is disposed opposite to the slot 214, the slot 214 and the stopper 215 are clamped to the circuit board 5, the second assembly plate 213 is provided with a connection groove 216, and the yoke 10 is provided with a connection protrusion 104 that is connected to the connection groove 216 in a matching manner. Specifically, during actual assembly, the framework 21 of the electromagnetic coil 2 is installed in the base 1, then the circuit board 5 is installed on the base 1, the iron core 22 is installed in the hollow column 212, the coil 23 is wound on the hollow column 212, the first assembling plate 211 is tightly clamped with the circuit board 5 through the matching of the clamping groove 214 and the stop block 215, and the tight connection between the second assembling plate 213 and the yoke 10 is realized through the mutual matching of the connecting groove 216 and the connecting bump 104, so that the assembly is convenient, and the work is stable and reliable.

As shown in fig. 3 and 4, the base 1 of the present embodiment is provided with a barrier 12 for spacing apart the electromagnetic coil 2 and the contact member 6. Specifically, separate baffle 12 and fix and install in base 1, effectively keep apart separately solenoid 2 and contact module 6, ensure solenoid 2 and contact module 6 work noninterference alone, improve work safety and stability.

As shown in fig. 3, a plurality of mounting grooves 13 are formed at intervals in the base 1 of the present embodiment, and the fixed contacts of the first terminal group 7 and the second terminal group 8 are correspondingly connected to the plurality of mounting grooves 13. Specifically, each static contact of the first terminal group 7 and the second terminal group 8 is correspondingly connected with the plurality of mounting grooves 13, so that the mounting space inside the base 1 is reasonably planned, and the mounting effect is good.

As shown in fig. 3 and 4, a plurality of first connection holes 14 are spaced apart from each other in the base 1 of the present embodiment, the respective Z-shaped terminals of the first terminal group 7 and the second terminal group 8 are correspondingly connected to the plurality of first connection holes 14, and a plurality of spacers 15 for separating and separating the plurality of first connection holes 14 are disposed at the bottom of the base 1. Specifically, each Z-shaped terminal of the first terminal group 7 and the second terminal group 8 is correspondingly connected with the plurality of first connecting holes 14, the structure is compact, the connection is stable and reliable, the plurality of division bars 15 are used for separating the plurality of first connecting holes 14, the working interval between each Z-shaped terminal is effectively separated in a separation manner, the mutual interference influence of the work is avoided, and the protection performance is good.

As shown in fig. 3 and 4, the base 1 of the present embodiment is provided with a second connection hole 16 and a third connection hole 17, and the positive electrode tab 51 and the negative electrode tab 52 are respectively connected to the second connection hole 16 and the third connection hole 17. Specifically, the positive plate 51 and the negative plate 52 are firmly inserted into the base 1 through the second connection hole 16 and the third connection hole 17, respectively, and the connection stability is good.

As shown in fig. 1 and 2, the base 1 of the present embodiment is made of flame retardant insulating plastic. Specifically, structural strength is big, possesses good insulating properties and fire behaviour, greatly promotes the safety in utilization performance of relay.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the housing 18 is installed outside the base 1 of the present embodiment, a mounting hole 181 for matching with an external bolt is formed in the top of the housing 18, fixture blocks 19 are respectively disposed on both sides of the base 1, fixture holes 182 for accommodating the fixture blocks 19 are respectively formed in both sides of the housing 18, a positioning ridge plate 183 is disposed on the inner wall of the housing 18, a positioning groove 613 connected to the positioning ridge plate 183 is formed in the pushing seat 61, and the positioning ridge plate 183 passes through the positioning groove 613 and is inserted into and stopped in the channel partition plate 9.

The housing 18 is installed outside the base 1, the installation hole 181 is used for matching with an external bolt to enable the housing 18 to achieve a positioning or fixing effect, the clamping block 19 is clamped with the clamping hole 182 in a matching mode to ensure detachable connection between the base 1 and the housing 18, the mounting and dismounting are simple and convenient, the housing 18 penetrates through the positioning groove 613 through the positioning ridge plate 183 and then is inserted and stopped in the channel partition plate 9, the connection stability between the housing 18 and the base 1 is further improved, and external dust and other impurities are effectively prevented from entering between elements of the relay to affect the normal use of the relay. Of course, according to actual needs, the output terminals of the relay may be multiple sets, and each set of output terminals is two.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.