CN112786365A - Shell plug-in isolation type electromagnetic relay - Google Patents

Abstract

The invention relates to the technical field of relays, in particular to a shell plug-in isolation type electromagnetic relay which comprises a top shell and a bottom shell, wherein an electromagnetic coil and a reset elastic sheet are arranged in the bottom shell, an armature is arranged at the top of the bottom shell in a rotating manner and is driven to rotate by the electromagnetic coil, the armature is driven to return to the original position by the reset elastic sheet, a contact assembly is arranged at one end of the armature, a first terminal set and a second terminal set are arranged in the bottom shell, the electromagnetic coil drives the contact assembly to be closed or disconnected with the first terminal set and the second terminal set by attracting or repelling the armature, a baffle plate is arranged in the bottom shell and is provided with a plug-in channel, the plug-in channel is divided into a first accommodating space and a second accommodating space, the first terminal set and the second terminal set are respectively arranged in the first accommodating, the inserting ridge plate penetrates through the positioning groove and then is inserted and stopped in the inserting channel, the connection is stable and reliable, and the isolation effect is good.

Description

Shell plug-in isolation type electromagnetic relay

Technical Field

The invention relates to the technical field of relays, in particular to a shell plug-in isolation type electromagnetic relay.

Background

The relay is an electronic control device, generally be applied to automatic control circuit, play automatically regulated in the circuit, safety protection, converting circuit etc. effect, current relay shell structure is complicated, the inner space design is unreasonable, not only lead to connection stability not good, but also lack effectual isolated structure, it is close to lead to the distance between the working element, influence normal work, still very easily arouse electric arc reignition, make the break-make performance of relay unstable, break down easily, reduce the life of relay.

Disclosure of Invention

The invention aims to provide an isolated electromagnetic relay with a plug-in shell, which is compact in structure, reasonable in design, stable and reliable in connection, good in isolation effect, capable of ensuring that the insulation resistance between a moving contact and a static contact is unchanged and prolonging the service life.

In order to achieve the above purpose, the invention relates to a plug-in isolated electromagnetic relay of a housing, which comprises a top shell and a bottom shell which are connected in a matching manner, wherein an electromagnetic coil and a reset spring plate are arranged in the bottom shell, an armature is rotatably arranged on the top of the bottom shell close to the electromagnetic coil and is used for driving the armature to rotate, the reset spring plate is used for driving the armature to recover the original position, one end of the armature is provided with a contact assembly, a first terminal set and a second terminal set which have the same structure are arranged in the bottom shell, the electromagnetic coil drives the contact assembly to be closed or disconnected with the first terminal set and the second terminal set through attracting or repelling the armature, a baffle plate is arranged in the bottom shell and is used for separating the electromagnetic coil and the contact assembly in a blocking manner, the baffle plate is provided with a plug-in channel, the baffle plate is perpendicular to the plug-in channel, the first terminal group and the second terminal group are respectively arranged in the first accommodating space and the second accommodating space, the inner wall of the top shell is provided with an inserting ridge plate, the contact assembly is provided with a positioning groove connected with the inserting ridge plate, and the inserting ridge plate penetrates through the positioning groove and then is inserted and stopped in the inserting channel.

Preferably, the inserting channel comprises a first partition plate and a second partition plate which are arranged in parallel, the bottom shell comprises a first transverse side wall, a second transverse side wall, a first longitudinal side wall and a second longitudinal side wall, the first accommodating space is enclosed by the partition plate, the first transverse side wall and the first longitudinal side wall to form a square structure, the second accommodating space is enclosed by the partition plate, the second transverse side wall and the second longitudinal side wall to form a square structure, the first accommodating space is provided with a first inserting groove and a second inserting groove at intervals, and the second accommodating space is provided with a third inserting groove and a fourth inserting groove at intervals.

Preferably, a first inserting hole and a second inserting hole are arranged in the first accommodating space, a first limiting block is arranged between the first inserting hole and the first inserting groove, a second limiting block is arranged between the second inserting hole and the second inserting groove, a third inserting hole and a fourth inserting hole are arranged in the second accommodating space, a third limiting block is arranged between the third inserting hole and the third inserting groove, a fourth limiting block is arranged between the fourth inserting hole and the fourth inserting groove, the first transverse side wall is provided with a first guide groove and a second guide groove, and the second transverse side wall is provided with a third guide groove and a fourth guide groove.

Preferably, the first terminal group includes a first Z-shaped terminal and a second Z-shaped terminal, the first Z-shaped terminal and the second Z-shaped terminal are respectively provided with a first assembly hole and a second assembly hole, the first assembly hole and the second assembly hole are respectively connected with a first fixed contact and a second fixed contact, the second terminal group includes a third Z-shaped terminal and a fourth Z-shaped terminal, the third Z-shaped terminal and the fourth Z-shaped terminal are respectively provided with a third assembly hole and a fourth assembly hole, and the third assembly hole and the fourth assembly hole are respectively connected with a third fixed contact and a fourth fixed contact.

Preferably, the contact assembly includes a pushing seat, the positioning groove is vertically formed in one surface of the pushing seat, the pushing seat is provided with a first elastic spring and a second elastic spring, the end of the first elastic spring is provided with a first moving contact and a second moving contact, the end of the second elastic spring is provided with a third moving contact and a fourth moving contact, and the first moving contact, the second moving contact, the third moving contact and the fourth moving contact are respectively arranged opposite to the first static contact, the second static contact, the third static contact and the fourth static contact.

Preferably, the bottom of the pushing seat is provided with a butting groove, and the butting groove is butted with the inserting channel.

Preferably, the electromagnetic coil comprises a framework, an iron core is arranged in the framework, and a coil is arranged outside the framework.

Preferably, the top of epitheca is provided with the mounting hole that is used for cooperating external bolt, the both sides of drain pan all are provided with the fixture block, the both sides of epitheca all are provided with the card hole that is used for holding the fixture block.

Preferably, a first inserting gap is formed between the first inserting groove and the second inserting groove, a second inserting gap is formed between the third inserting groove and the fourth inserting groove, a first convex rib and a second convex rib are arranged on the inner wall of the top shell, and the first convex rib and the second convex rib are correspondingly inserted into the first inserting gap and the second inserting gap.

Preferably, the inner wall of the top shell is provided with a limiting edge, and the first accommodating space and the second accommodating space are abutted to the limiting edge.

The invention has the beneficial effects that: an isolated electromagnetic relay with a plug-in shell comprises a top shell and a bottom shell which are connected in a matching mode, wherein an electromagnetic coil and a reset elastic sheet are arranged in the bottom shell, an armature is arranged on the top, close to the electromagnetic coil, of the bottom shell 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 the original position, a contact assembly is arranged at one end of the armature, a first terminal set and a second terminal set which are identical in structure are arranged in the bottom shell, the electromagnetic coil drives the contact assembly to be closed or disconnected with the first terminal set and the second terminal set through attraction or repulsion of the armature, a baffle is arranged in the bottom shell and is used for separating the electromagnetic coil from the contact assembly in a blocking mode, a plug-in channel is arranged on the baffle and is perpendicular to the plug-in channel, and, the first terminal group and the second terminal group are respectively arranged in the first accommodating space and the second accommodating space, the inner wall of the top shell is provided with an inserting ridge plate, the contact assembly is provided with a positioning groove connected with the inserting ridge plate, and the inserting ridge plate penetrates through the positioning groove and then is inserted and stopped in the inserting channel.

When the electromagnetic relay works, an external power supply is connected with the relay, 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 relay can be switched on and switched on simultaneously, when the external power supply is disconnected with the relay, the electromagnetic coil is not electrified, the reset elastic piece drives the armature to restore the original position under the action of elasticity, the contact assembly is enabled to be rapidly responded, the first terminal set and the second terminal set are mutually disconnected, the partition plate is vertically arranged with the plugging channel to form a T-shaped stable structure, the partition plate effectively separates the electromagnetic coil from the contact assembly, the electromagnetic coil and the contact assembly are ensured to work independently, electromagnetic interference is shielded, normal and stable work is ensured, the plugging channel divides the inner space of the bottom shell into a first accommodating space and, the top shell penetrates through the positioning groove through the inserting ridge plate and then is inserted and stopped in the inserting channel, so that the connection stability between the top shell and the bottom shell is further improved, the operation is convenient and fast, and the influence of foreign matters such as external dust and the like on the normal use of the relay due to the fact that the foreign matters enter between all elements of the relay is effectively avoided. The invention has compact structure, reasonable design, stable and reliable connection and good isolation effect, ensures that the insulation resistance between the moving contact and the static contact is not changed, and prolongs the service life.

Drawings

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

Fig. 2 is an exploded view of the present invention.

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

Fig. 4 is a schematic structural diagram of the bottom case of the present invention.

The reference numerals include:

1-top shell 10-inserting ridge plate 11-mounting hole

12-clamping hole 13-first convex rib 14-second convex rib

15-limit edge 16-positioning hole

2-bottom shell 20-baffle

21-plug channel 211-first partition 212-second partition

22-first accommodation space 220-first insertion groove 221-second insertion groove

222-first inserting hole 223-second inserting hole 224-first limiting block

225-second stopper 226-first insertion gap

23-second accommodation space 230-third insertion groove 231-fourth insertion groove

232-third inserting hole 233-fourth inserting hole 234-third limiting block

235-fourth limiting block 236-second insertion gap

24-first lateral side wall 241-first guide groove 242-second guide groove

25-second lateral side wall 251-third guide groove 252-fourth guide groove

26-first longitudinal side wall 27-second longitudinal side wall 28-block

29-positioning column

3-electromagnetic coil 30-skeleton 31-iron core

32-coil

4-reset spring 5-armature

6-contact component 60-positioning groove 61-pushing seat

62-first elastic spring 63-second elastic spring 64-first moving contact

65-second moving contact 66-third moving contact 67-fourth moving contact

68-abutment groove

7-first terminal group 70-first Z-terminal 71-second Z-terminal

72-first assembling hole 73-second assembling hole 74-first fixed contact

75-second stationary contact

8-second terminal group 80-third Z-shaped terminal 81-fourth Z-shaped terminal

82-third assembling hole 83-fourth assembling hole 84-third fixed contact

85-fourth stationary contact.

Detailed Description

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

As shown in fig. 1 to 4, the case plug-in isolated electromagnetic relay of the present invention includes a top case 1 and a bottom case 2 that are connected in a matching manner, an electromagnetic coil 3 and a reset spring 4 are disposed in the bottom case 2, an armature 5 is rotatably disposed on the top of the bottom case 2 close to the electromagnetic coil 3, the electromagnetic coil 3 is configured to drive the armature 5 to rotate, the reset spring 4 is configured to drive the armature 5 to return to an original position, a contact assembly 6 is disposed at one end of the armature 5, a first terminal set 7 and a second terminal set 8 that have the same structure are disposed in the bottom case 2, the electromagnetic coil 3 drives the contact assembly 6 to be closed or opened with the first terminal set 7 and the second terminal set 8 by attracting or repelling the armature 5, a separation baffle 20 is disposed in the bottom case 2, the separation baffle 20 is configured to separate the electromagnetic coil 3 from the contact assembly 6, the separation baffle, the partition board 20 is perpendicular to the insertion channel 21, the insertion channel 21 divides the inner space of the bottom case 2 into a first accommodating space 22 and a second accommodating space 23, the first terminal set 7 and the second terminal set 8 are respectively installed in the first accommodating space 22 and the second accommodating space 23, the inner wall of the top case 1 is provided with an insertion ridge board 10, the contact assembly 6 is provided with a positioning groove 60 connected with the insertion ridge board 10, and the insertion ridge board 10 passes through the positioning groove 60 and is inserted and stopped in the insertion channel 21.

When the relay works, an external power supply is connected with the relay, so that the electromagnetic coil 3 is electrified, the electromagnetic coil 3 and the armature 5 are attracted and closed, the armature 5 further drives the contact assembly 6, the contact assembly 6 is enabled to respond quickly to be mutually closed with the first terminal set 7 and the second terminal set 8, the effect of switching on a plurality of circuits of the relay at the same time can be realized, when the external power supply is disconnected with the relay, the electromagnetic coil 3 is not electrified, the reset elastic sheet 4 drives the armature 5 to recover the original position under the action of elastic force, so that the contact assembly 6 responds quickly to be mutually disconnected with the first terminal set 7 and the second terminal set 8, the baffle plate 20 and the plug channel 21 are vertically arranged to form a T-shaped stable structure, the baffle plate 20 effectively separates and separates the electromagnetic coil 3 from the contact assembly 6, the electromagnetic coil 3 and the contact assembly 6 are ensured to work independently, electromagnetic interference is, the inserting channel 21 divides the inner space of the bottom case 2 into a first accommodating space 22 and a second accommodating space 23, which not only effectively separates and separates the first terminal set 7 and the second terminal set 8, but also stably accommodates the first terminal set 7 and the second terminal set 8, so that the contact assembly 6, the first terminal set 7 and the second terminal set 8 are arranged in parallel at intervals, and the top case 1 passes through the positioning groove 60 through the inserting ridge plate 10 and then is inserted and stopped in the inserting channel 21, thereby further improving the connection stability between the top case 1 and the bottom case 2, being convenient and fast to operate, and effectively preventing foreign matters such as external dust and the like from entering between the elements of the relay to influence the normal use of the relay. The invention has compact structure, reasonable design, stable and reliable connection and good isolation effect, ensures that the insulation resistance between the moving contact and the static contact is not changed, and prolongs the service life.

As shown in fig. 2 and 4, the inserting channel 21 of the present embodiment includes a first partition 211 and a second partition 212, which are disposed in parallel, the bottom case 2 includes a first transverse sidewall 24, a second transverse sidewall 25, a first longitudinal sidewall 26, and a second longitudinal sidewall 27, the first accommodating space 22 is enclosed by the partition 20, the first partition 211, the first transverse sidewall 24, and the first longitudinal sidewall 26 to form a square structure, the second accommodating space 23 is enclosed by the partition 20, the second partition 212, the second transverse sidewall 25, and the second longitudinal sidewall 27 to form a square structure, the first accommodating space 22 is provided with a first inserting groove 220 and a second inserting groove 221 at intervals, and the second accommodating space 23 is provided with a third inserting groove 230 and a fourth inserting groove 231 at intervals. Specifically, enclose by separating baffle 20, first baffle 211, first horizontal lateral wall 24 and first vertical lateral wall 26 and close the first accommodation space 22 that forms square structure, enclose by separating baffle 20, second baffle 212, second horizontal lateral wall 25 and second vertical lateral wall 27 and close the second accommodation space 23 that forms square structure, it is bulky to hold, can satisfy the clamping of the terminal of multiple model, specification, and the commonality is strong, first accommodation space 22 interval is provided with first inserting groove 220 and second inserting groove 221, second accommodation space 23 interval is provided with third inserting groove 230 and fourth inserting groove 231, it is fixed to realize all-round grafting to four terminals, air mobility is good between a plurality of inserting grooves and the accommodation space, improve the radiating effect.

As shown in fig. 2 and 4, a first insertion hole 222 and a second insertion hole 223 are disposed in the first accommodating space 22 of this embodiment, a first limit block 224 is disposed between the first insertion hole 222 and the first insertion groove 220, a second limit block 225 is disposed between the second insertion hole 223 and the second insertion groove 221, a third insertion hole 232 and a fourth insertion hole 233 are disposed in the second accommodating space 23, a third limit block 234 is disposed between the third insertion hole 232 and the third insertion groove 230, a fourth limit block 235 is disposed between the fourth insertion hole 233 and the fourth insertion groove 231, the first transverse sidewall 24 is provided with a first guide groove 241 and a second guide groove 242, and the second transverse sidewall 25 is provided with a third guide groove 251 and a fourth guide groove 252. Specifically, respectively through first guide way 241, second guide way 242, third guide way 251, fourth guide way 252 provides the direction of directing for the installation and the dismantlement of four terminals, easy operation is convenient, first stopper 224, second stopper 225, third stopper 234, fourth stopper 235 is used for the position of fixed four terminals, the location is fastened, it is fixed to need not to adopt the screw mode, first spliced eye 222 is passed respectively to four terminals, second spliced eye 223, third spliced eye 232, the outside that bottom shell 2 was suddenly stretched out again to fourth spliced eye 233, so that be connected with outside output loop.

As shown in fig. 2 and 3, the first terminal set 7 of the present embodiment includes a first Z-shaped terminal 70 and a second Z-shaped terminal 71, the first Z-shaped terminal 70 and the second Z-shaped terminal 71 are respectively provided with a first assembling hole 72 and a second assembling hole 73, the first assembling hole 72 and the second assembling hole 73 are respectively connected to a first fixed contact 74 and a second fixed contact 75, the second terminal set 8 includes a third Z-shaped terminal 80 and a fourth Z-shaped terminal 81, the third Z-shaped terminal 80 and the fourth Z-shaped terminal 81 are respectively provided with a third assembling hole 82 and a fourth assembling hole 83, and the third assembling hole 82 and the fourth assembling hole 83 are respectively connected to a third fixed contact 84 and a fourth fixed contact 85. Specifically, the first terminal group 7 includes a first Z-shaped terminal 70 and a second Z-shaped terminal 71, the first Z-shaped terminal 70 is connected to the first fixed contact 74 through a first assembly hole 72, the second Z-shaped terminal 71 is connected to the second fixed contact 75 through a second assembly hole 73, the third Z-shaped terminal 80 is connected to the third fixed contact 84 through a third assembly hole 82, and the fourth Z-shaped terminal 81 is connected to the fourth fixed contact 85 through a fourth assembly hole 83, so that the structure is simple and the assembly efficiency is high.

As shown in fig. 2 and fig. 3, the contact assembly 6 of this embodiment includes a push base 61, the positioning groove 60 is vertically opened on one surface of the push base 61, the push base 61 is provided with a first elastic spring 62 and a second elastic spring 63, an end of the first elastic spring 62 is provided with a first movable contact 64 and a second movable contact 65, an end of the second elastic spring 63 is provided with a third movable contact 66 and a fourth movable contact 67, and the first movable contact 64, the second movable contact 65, the third movable contact 66, and the fourth movable contact 67 are respectively opposite to the first fixed contact 74, the second fixed contact 75, the third fixed contact 84, and the fourth fixed contact 85. Specifically, the pushing base 61 is respectively provided with a first elastic spring 62 and a second elastic spring 63, the end of the first elastic spring 62 is provided with a first movable contact 64 and a second movable contact 65, the end of the second elastic spring 63 is provided with a third movable contact 66 and a fourth movable contact 67, so that the first elastic spring 62 and the second elastic spring 63 drive the four movable contacts to be respectively closed or separated from the four fixed contacts of the first terminal group 7 and the second terminal group 8, and the effect of switching on or off the plurality of output circuits of the relay at the same time can be realized.

As shown in fig. 2 and 3, the bottom of the pushing seat 61 of the present embodiment is opened with an abutting groove 68, and the abutting groove 68 abuts against the inserting channel 21. Specifically, promote seat 61 and armature 5 accordant connection, promote seat 61 and pass through butt groove 68 and grafting passageway 21 butt, and then realize that drain pan 2 props the effect of holding to the balance of promoting seat 61, and it is effectual to fix a position.

As shown in fig. 2 and 3, the electromagnetic coil 3 of the present embodiment includes a bobbin 30, a core 31 is installed inside the bobbin 30, and a coil 32 is installed outside the bobbin 30. Specifically, the iron core 31 and the coil 32 are respectively arranged inside and outside the framework 30, so that the structure is compact and the assembly efficiency is high.

As shown in fig. 1, 2 and 3, the top of the top case 1 of the present embodiment is provided with a mounting hole 11 for fitting an external bolt, two sides of the bottom case 2 are provided with a latch 28, and two sides of the top case 1 are provided with a latch hole 12 for accommodating the latch 28. Specifically, mounting hole 11 is used for cooperating external bolt to make top shell 1 reach location or fixed effect, utilize fixture block 28 and card hole 12 to match the joint, ensure the dismantlement between drain pan 2 and the top shell 1 and be connected, the dismouting is simple convenient.

As shown in fig. 3 and 4, a first insertion gap 226 is disposed between the first insertion groove 220 and the second insertion groove 221, a second insertion gap 236 is disposed between the third insertion groove 230 and the fourth insertion groove 231, a first protruding rib 13 and a second protruding rib 14 are disposed on the inner wall of the top case 1, and the first protruding rib 13 and the second protruding rib 14 are correspondingly inserted into the first insertion gap 226 and the second insertion gap 236. Specifically, a first insertion gap 226 is disposed between the first insertion groove 220 and the second insertion groove 221, a second insertion gap 236 is disposed between the third insertion groove 230 and the fourth insertion groove 231, and the top case 1 is inserted into the first insertion gap 226 and the second insertion gap 236 through the first protruding rib 13 and the second protruding rib 14, so as to further improve the connection firmness between the top case 1 and the bottom case 2, effectively avoid the occurrence of loosening and dropping, and improve the working stability of the internal electrical component.

As shown in fig. 3, the inner wall of the top case 1 of the present embodiment is provided with a limiting edge 15, and the first accommodating space 22 and the second accommodating space 23 are both abutted to the limiting edge 15. Specifically, top shell 1 all offsets with the outer fringe of first accommodation space 22, second accommodation space 23 through spacing border 15, not only effectively avoids top shell 1 and drain pan 2 because of receiving external vibration dislocation, and positioning effect is good, in addition also so that the accurate joint between fixture block 28 and the card hole 12.

As shown in fig. 3 and 4, the inner wall of the top case 1 of the present embodiment is provided with a positioning hole 16, and the bottom case 2 is provided with a positioning post 29 in matching connection with the positioning hole 16. Specifically, top shell 1 matches through locating hole 16 and reference column 29 and pegs graft, further improves the accurate connection in location between top shell 1 and the drain pan 2, and the equipment is simple and efficient.

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.

Claims (10)

1. The utility model provides an isolated electromagnetic relay of shell grafting, top shell and drain pan including the cooperation is connected, be provided with solenoid and the shell fragment that resets in the drain pan, the top that the drain pan 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: one end of the armature is provided with a contact component, a first terminal group and a second terminal group which have the same structure are arranged in the bottom shell, the electromagnetic coil drives the contact assembly to be closed or opened with the first terminal set and the second terminal set through attracting or repelling the armature, a baffle plate is arranged in the bottom shell and used for separating the electromagnetic coil from the contact component, the separation baffle is provided with an insertion channel, the separation baffle is perpendicular to the insertion channel, the insertion channel divides the inner space of the bottom shell into a first accommodating space and a second accommodating space, the first terminal group and the second terminal group are respectively arranged in the first accommodating space and the second accommodating space, the inner wall of the top shell is provided with an inserting ridge plate, the contact assembly is provided with a positioning groove connected with the inserting ridge plate, and the inserting ridge plate penetrates through the positioning groove and then is inserted and stopped in the inserting channel.

2. The isolated electromagnetic relay of claim 1, wherein: the splicing channel comprises a first partition plate and a second partition plate which are arranged in parallel, the bottom shell comprises a first transverse side wall, a second transverse side wall, a first longitudinal side wall and a second longitudinal side wall, the first accommodating space is enclosed by the partition plate, the first transverse side wall and the first longitudinal side wall to form a square structure, the second accommodating space is enclosed by the partition plate, the second transverse side wall and the second longitudinal side wall to form a square structure, the first accommodating space is provided with a first splicing groove and a second splicing groove at intervals, and the second accommodating space is provided with a third splicing groove and a fourth splicing groove at intervals.

3. The isolated electromagnetic relay of claim 2, wherein: the first plug hole and the second plug hole are arranged in the first containing space, a first limiting block is arranged between the first plug hole and the first plug groove, a second limiting block is arranged between the second plug hole and the second plug groove, a third plug hole and a fourth plug hole are arranged in the second containing space, a third limiting block is arranged between the third plug hole and the third plug groove, a fourth limiting block is arranged between the fourth plug hole and the fourth plug groove, the first transverse side wall is provided with a first guide groove and a second guide groove, and the second transverse side wall is provided with a third guide groove and a fourth guide groove.

4. The isolated electromagnetic relay of claim 1, wherein: the first terminal group comprises a first Z-shaped terminal and a second Z-shaped terminal, a first assembling hole and a second assembling hole are formed in the first Z-shaped terminal and the second Z-shaped terminal respectively, a first static contact and a second static contact are connected with the first assembling hole and the second assembling hole respectively, the second terminal group comprises a third Z-shaped terminal and a fourth Z-shaped terminal, a third assembling hole and a fourth assembling hole are formed in the third Z-shaped terminal and the fourth Z-shaped terminal respectively, and a third static contact and a fourth static contact are connected with the third assembling hole and the fourth assembling hole respectively.

5. The isolated electromagnetic relay of claim 4, wherein: the contact assembly comprises a pushing seat, the positioning groove is vertically formed in one surface of the pushing seat, the pushing seat is provided with a first elastic spring and a second elastic spring, a first moving contact and a second moving contact are arranged at the end portion of the first elastic spring, a third moving contact and a fourth moving contact are arranged at the end portion of the second elastic spring, and the first moving contact, the second moving contact, the third moving contact and the fourth moving contact are respectively arranged opposite to the first static contact, the second static contact, the third static contact and the fourth static contact.

6. The isolated electromagnetic relay of claim 5, wherein: the bottom of the pushing seat is provided with a butt joint groove, and the butt joint groove is in butt joint with the inserting channel.

7. The isolated electromagnetic relay of claim 1, wherein: the electromagnetic coil comprises a framework, an iron core is arranged in the framework, and a coil is arranged outside the framework.

8. The isolated electromagnetic relay of claim 1, wherein: the top of epitheca is provided with the mounting hole that is used for cooperating external bolt, the both sides of drain pan all are provided with the fixture block, the both sides of epitheca all are provided with the card hole that is used for holding the fixture block.

9. The isolated electromagnetic relay of claim 2, wherein: a first inserting gap is formed between the first inserting groove and the second inserting groove, a second inserting gap is formed between the third inserting groove and the fourth inserting groove, a first convex rib and a second convex rib are arranged on the inner wall of the top shell, and the first convex rib and the second convex rib are correspondingly inserted into the first inserting gap and the second inserting gap.

10. The isolated electromagnetic relay of claim 1, wherein: the inner wall of the top shell is provided with a limiting edge, and the first accommodating space and the second accommodating space are abutted to the limiting edge.

Images