CN214378264U - Contact subassembly improvement formula electromagnetic relay - Google Patents

Abstract

The utility model relates to the technical field of electric control, in particular to a contact component improved electromagnetic relay, which comprises a shell, an electromagnetic mechanism, a spring component and a static contact, wherein the electromagnetic mechanism, the spring component and the static contact are all arranged in the shell; the electromagnetic mechanism is used for enabling the moving contact to abut against or separate from the fixed contact. The utility model discloses an add the second reed, this second reed is used for pasting on first reed when static contact and moving contact, applys a thrust by the second reed to first reed to make the actuation effect of moving contact and static contact better.

Description

Contact subassembly improvement formula electromagnetic relay

Technical Field

The utility model belongs to the technical field of automatically controlled technique and specifically relates to indicate a contact subassembly improvement formula electromagnetic relay.

Background

At present, a moving contact is controlled to act through an electromagnetic mechanism, so that the moving contact is contacted with or disconnected from a fixed contact, and the high-voltage end is connected or disconnected. The control component structure of the moving contact is various, one of the structures is commonly used for driving the reed to realize control through the insulating pushing piece, and the structure has the following defects: when the moving contact is contacted with the static contact, the suction force is not large enough, so that if the external interference is stronger, the moving contact can be separated from the static contact under the condition that the reed does not act, and the control is not stable enough.

Disclosure of Invention

The utility model provides a problem to prior art provides a contact subassembly improvement formula electromagnetic relay, can increase the interact power between moving contact and the static contact under equal suction.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a pair of contact subassembly improvement formula electromagnetic relay, including the casing, set up electromagnetic mechanism, reed subassembly and the static contact in the casing, reed subassembly includes insulating push away the piece, connect electrical component, moving contact, first reed and second reed, insulating push away the piece and be provided with the drive groove, connect electrical component and install in the casing, insulating push away the piece activity set up in the casing, the one end of first reed, the one end of second reed all with connect electrical component and be connected, the other end of first reed, the other end of second reed all install in drive groove, the second reed is located first reed with connect electrical component between, the moving contact riveting is in first reed, the intensity of second reed is greater than the intensity of first reed; the electromagnetic mechanism is used for driving the first reed to act through the insulation pushing piece so that the moving contact is abutted against or separated from the static contact.

Furthermore, the other end of the first reed is provided with a first limiting part and a second limiting part, the insulating pushing piece is clamped by the two limiting parts, and the first limiting part and the second limiting part are respectively abutted against two sides of the insulating pushing piece.

Furthermore, a stroke groove is formed in the shell, a stroke block is arranged on one side of the insulating pushing piece, and the stroke block is movably arranged in the stroke groove.

Furthermore, the insulation pushing piece is further provided with a limiting groove, the limiting groove is located below the driving groove, and the other end of the second reed is located in the limiting groove and moves in the limiting groove.

Furthermore, the electromagnetic mechanism comprises an insulating support, a coil, a yoke and an armature piece, the insulating support is arranged in the shell, the coil is wound on the insulating support, the yoke is arranged on the insulating support and protrudes out of the insulating support from two ends of the insulating support, the armature piece is movably arranged in the shell, and the insulating push piece is connected to the armature piece;

when the static contact is in work, the yoke iron generates a corresponding magnetic field according to the direction of current flowing through the coil, the rotation of the armature piece is controlled through the change of the magnetic field, and the rotating armature piece drives the insulation pushing piece to drive the first spring to be close to or far away from the static contact.

Furthermore, the yoke iron comprises an installation part, a first bending part, a second bending part, a first abutting part and a second abutting part, the installation part is installed in the insulating support, the first bending part and the second bending part are respectively positioned outside two ends of the insulating support, the first bending part and the second bending part are both connected to the installation part, the first abutting part and the second abutting part are respectively connected to the first bending part and the second bending part, and the first abutting part and the second abutting part are arranged oppositely; the armature piece is located first butt portion with between the second butt portion, the armature piece is provided with conflict subassembly respectively, conflict subassembly includes two armature plates and is located the permanent magnet between two armature plates, and two armature plates are lived respectively to the N utmost point, the S utmost point of permanent magnet, the armature piece runs through and is provided with two through-holes, and two armature plates are installed respectively in two through-holes, and the through-hole is suddenly stretched out respectively at the both ends of armature plate, and first butt portion, second butt portion are located respectively between two armature plates at armature piece both ends.

Furthermore, a limiting blind hole is formed in the shell, a limiting plate is fixedly connected to the armature piece, a limiting column is arranged on the limiting plate, and the limiting column is arranged in the limiting blind hole and moves in the limiting blind hole.

Furthermore, the insulating pushing piece is provided with a slot, and one side of the slot, which is close to the armature piece, is provided with a guide inclined plane; the armature piece is provided with a control part, one end, far away from the armature piece, of the control part is provided with a fixed hook, the control part is installed in the slot, and the fixed hook is used for hooking the insulation pushing piece.

Preferably, the insulating pushing piece is provided with an adaptation groove, and the fixed hook is hooked in the adaptation groove.

Furthermore, the shell comprises an auxiliary shell and a main shell, wherein each side wall of the auxiliary shell is provided with a guide sheet, and each guide sheet is provided with an anti-falling groove; each side wall of the main shell is provided with a guide groove, an anti-falling block is arranged in each guide groove, and a guide inclined plane is arranged at one end, opposite to the auxiliary shell, of the anti-falling block; when the main shell is assembled with the auxiliary shell, the guide pieces and the guide grooves are assembled in a one-to-one correspondence mode, so that the guide pieces slide through the anti-falling blocks along the guide inclined planes until the anti-falling blocks enter the anti-falling grooves, and the main shell and the auxiliary shell are fixed.

The utility model has the advantages that: the utility model discloses an add the second reed, this second reed is used for when static contact and moving contact, has the first reed attraction of electric current and pastes on first reed by the second reed by the circulation, applys a thrust to first reed by the second reed to make the actuation effect of moving contact and static contact better.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a schematic view of the present invention after the main casing is hidden.

Fig. 3 is a schematic view of the spring assembly of the present invention.

Fig. 4 is an exploded schematic view of the electromagnetic mechanism of the present invention.

Fig. 5 is an exploded view of the armature member of the present invention.

Fig. 6 is an exploded view of the housing of the present invention.

Fig. 7 is a schematic view of the sub-housing of the present invention.

Reference numerals: 1-shell, 2-electromagnetic mechanism, 3-reed component, 4-static contact, 5-auxiliary shell, 6-main shell, 11-stroke slot, 12-limit blind hole, 13-elastic buffer component, 14-buffer structure, 21-insulating support, 22-coil, 23-yoke iron, 24-armature component, 31-insulating pushing component, 32-electric component, 33-moving contact, 34-first reed, 35-second reed, 51-guide piece, 52-anti-drop slot, 61-guide slot, 62-anti-drop block, 63-guide inclined plane, 231-mounting part, 232-first bending part, 233-second bending part, 234-first abutting part, 235-second abutting part, 241-abutting component, 242-armature plate, 244-a limit plate, 245-a limit column, 246-a control part, 247-a fixed hook, 248-a through hole, 311-a driving groove, 312-a stroke block, 313-a limit groove, 314-a slot, 315-a guide inclined plane, 316-an adaptive groove, 341-a first limit part and 342-a second limit part.

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 drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the present invention provides a contact assembly improved electromagnetic relay, which includes a housing 1, an electromagnetic mechanism 2, a spring assembly 3 and a static contact 4 all disposed in the housing 1, wherein the spring assembly 3 includes an insulating pushing member 31, an electric connecting member 32, a movable contact 33, a first spring 34 and a second spring 35, the insulating pushing member 31 is provided with a driving slot 311, the electric connecting member 32 is mounted in the housing 1, the insulating pushing member 31 is movably disposed in the housing 1, one end of the first spring 34 and one end of the second spring 35 are both connected to the electric connecting member 32, the other end of the first spring 34 and the other end of the second spring 35 are both mounted in the driving slot 311, the other end of the second spring 35 is disposed in a suspension manner, the second spring 35 is located between the first spring 34 and the electric connecting member 32, the movable contact 33 is riveted on the first spring 34, and the strength of the second spring 35 is greater than that of the first spring 34; the electromagnetic mechanism 2 is used for driving the first spring 34 to act through the insulation pushing member 31 so that the movable contact 33 collides with or separates from the fixed contact 4.

When the electromagnetic mechanism 2 acts to drive the insulating pushing part 31 to act, the insulating pushing part 31 drives the first spring 34 to act so that the movable contact 33 is contacted with the fixed contact 4, and the electric connecting part 32, the first spring 34, the movable contact 33, the fixed contact 4 and an external component form a closed loop, namely current flows through the closed loop; at this time, the first spring 34 is energized to generate a magnetic field, so that the second spring 35 is attracted to the bottom of the movable contact 33 to contact with the bottom, and the force for pushing the movable contact 33 to the fixed contact 4 is increased by the second spring 35, so that the fixed contact 4 and the movable contact 33 are attracted more stably.

Because the strength of the second spring 35 is greater than that of the first spring 34, when the two springs are influenced by the same "lorentn magnetic force" of the electric connection component 32, the first spring 34 elastically deforms compared with the second spring 35, so that the movable contact 33 is driven to roll relative to the static contact 4, and the probability of contact adhesion between the movable contact 33 and the static contact 4 is reduced.

In addition, after the moving contact 33 contacts the fixed contact 4, the other end of the first spring 34 contacts the other end of the second spring 35, current flows between the two ends, electromagnetic induction enables repulsion between the second spring 35 and the first spring 34, the repulsion enables the moving contact 33 to be stably contacted and pressed on the fixed contact 4, contact force between the two is increased, and conduction stability is guaranteed.

In addition, the bottom of the movable contact 33 in this embodiment is preferably arc-shaped, that is, when the electromagnetic mechanism 2 drives the insulating pushing element 31 to descend, the second spring 35 descends first, then the first spring 34 moves towards the direction of the second spring 35 due to the action of the attraction force, the bottom of the arc-shaped movable contact 33 enables the movable contact 33 to roll with a short stroke, and the other end of the first spring 34 is pulled to descend by matching with the insulating pushing element 31, so that the movable contact 33 and the fixed contact 4 are separated in a manner similar to a "tearing band-aid" manner rather than in a linear manner, and the phenomenon that the attraction force is too large to affect the separation effect is avoided.

In this embodiment, the other end of the first spring 34 is provided with a first position-limiting portion 341 and a second position-limiting portion 342, the first position-limiting portion 341 and the second position-limiting portion 342 cooperate to clamp the insulation pushing member, and the first position-limiting portion 341 and the second position-limiting portion 342 respectively abut against two sides of the insulation pushing member 31. The arrangement of the first position-limiting part 341 and the second position-limiting part 342 makes the assembly between the first reed 34 and the insulating pushing member 31 more stable, and avoids the separation between the first reed 34 and the insulating pushing member 31. Specifically, the first stopper portion 341 and the second stopper portion 342 are integrally formed with the first spring 34.

In this embodiment, a stroke slot 11 is formed in the housing 1, a stroke block 312 is disposed on one side of the insulating pushing member 31, and the stroke block 312 is movably installed in the stroke slot 11. Namely, the stroke of the stroke block 312 is limited by the stroke slot 11 in a manner that the stroke block 312 moves in the stroke slot 11, so that the effect of limiting the stroke of the insulating push piece 31 is achieved, and the insulating push piece 31 is ensured not to collide with other parts under the inertia effect; specifically, the buffering structure 14 is disposed in the stroke slot 11, and is used for preventing the stroke block 312 from colliding with the stroke slot 11 to affect the reliable contact between the static contact 4 and the movable contact 33.

In this embodiment, the insulation pushing element 31 is further provided with a limiting groove 313, the limiting groove 313 is located below the driving groove 311, and the other end of the second spring 35 is located in the limiting groove 313 and moves in the limiting groove 313. Specifically, the limiting groove 313 is used for limiting the movable range of the second spring 35, that is, it is ensured that the second spring 35 is not separated from the first spring 34 by too large a distance, thereby ensuring that the second spring 35 can be reliably attracted by the first spring 34.

In this embodiment, the electromagnetic mechanism 2 includes an insulating support 21, a coil 22, a yoke 23 and an armature member 24, the insulating support 21 is installed in the housing 1, the coil 22 is wound on the insulating support 21, the yoke 23 is installed on the insulating support 21 and protrudes from two ends of the insulating support 21 to the insulating support 21, the armature member 24 is movably installed in the housing 1, and the insulating push member 31 is connected to the armature member 24.

In actual operation, the yoke 23 generates a corresponding magnetic field according to the direction of the current flowing through the coil 22, the rotation of the armature member 24 is controlled by the change of the magnetic field, and the rotating armature member 24 drives the insulation pushing member 31 to drive the first spring 34 to approach or leave the stationary contact 4.

Specifically, this armature piece 24 is located between coil 22 and spring assembly 3, makes the utility model discloses internal space utilization is higher, thereby has reduced the utility model discloses a volume.

Specifically, the yoke 23 includes a mounting portion 231, a first bent portion 232, a second bent portion 233, a first abutting portion 234 and a second abutting portion 235, the mounting portion 231 is mounted in the insulating bracket 21, the first bent portion 232 and the second bent portion 233 are respectively located outside two ends of the insulating bracket 21, the first bent portion 232 and the second bent portion 233 are both connected to the mounting portion 231, the first abutting portion 234 and the second abutting portion 235 are respectively connected to the first bent portion 232 and the second bent portion 233, and the first abutting portion 234 and the second abutting portion 235 are disposed opposite to each other; the armature piece 24 is located between the first abutting portion 234 and the second abutting portion 235, the armature piece 24 is provided with a collision component 241 respectively, the collision component 241 comprises two armature plates 242 and a permanent magnet (not shown in the figure) located between the two armature plates 242, the N pole and the S pole of the permanent magnet respectively connect the two armature plates, the armature piece 24 is provided with two through holes 248 in a penetrating manner, and the first abutting portion 234 and the second abutting portion 235 are located between the two armature plates 242 at two ends of the armature piece 24 respectively.

That is, when a forward current is applied to the coil 22, the yoke 23 is magnetized by the magnetic field generated by the coil 22, so that the polarities of the first abutting portion 234 and the second abutting portion 235 are opposite, and because the polarities of the two armature plates 242 located on the same side are opposite, under the driving of a magnetic force, the armature pieces 24 rotate until the corresponding armature plate 242 contacts with the first abutting portion 234/the second abutting portion 235, and the insulating push piece 31 is driven to rise by the rotation of the armature pieces 24; when reverse current is introduced into the coil 22, the polarities of the yokes 23 are opposite, so that the armature member 24 rotates in the opposite direction under the action of magnetic force, and the insulating pushing member 31 is driven to descend, so that the movable contact 33 is separated from the fixed contact 4, and a control effect is achieved through a novel mechanical structure.

Specifically, a limiting blind hole 12 is formed in the housing 1, the armature member 24 is fixedly connected with a limiting plate 244, the limiting plate 244 is provided with a limiting post 245, and the limiting post 245 is installed in the limiting blind hole 12 and moves in the limiting blind hole 12. This spacing post 245 and spacing blind hole 12's cooperation for carry on spacingly to armature piece 24 pivoted stroke, thereby avoid armature piece 24 rotation range too big and lead to bumping with other parts, thereby effectively utilize the utility model discloses inside space, make the utility model discloses it is more compact. Preferably, an elastic buffer 13, such as a silicone rubber or a spring, is disposed in the blind limiting hole 12 for reducing the negative impact of inertia caused by collision between the blind limiting hole 12 and the limiting column 245.

Specifically, the insulating pushing piece 31 is provided with a slot 314, and one side of the slot 314 close to the armature piece 24 is provided with a guide inclined plane 315; the armature piece 24 is provided with a control part 246, one end of the control part 246, which is far away from the armature piece 24, is provided with a fixing hook 247, the control part 246 is installed in the insertion groove 314, and the fixing hook 247 is used for hooking the insulation push piece 31. That is, during installation, the control portion 246 is inserted into the insertion slot 314 along the guide of the guide slope 315 until the fixing hook 247 moves to the other end of the insertion slot 314, and the fixing hook 247 hooks the other end of the insertion slot 314, so that installation between the insulating push piece 31 and the armature piece 24 is realized, and transmission can occur between the two. Preferably, the insulation pusher 31 is provided with an adaptive groove 316, and the fixing hook 247 is hooked in the adaptive groove 316, so that the fixing hook 247 is ensured not to be separated from the adaptive groove 316.

In the present embodiment, the housing 1 includes a sub-housing 5 and a main housing 6, each side wall of the sub-housing 5 is provided with a guide piece 51, and the guide pieces are provided with a separation-preventing groove 52; each side wall of the main shell 6 is provided with a guide groove 61, an anti-falling block 62 is arranged in the guide groove 61, and one end of the anti-falling block 62, which faces the auxiliary shell 5, is provided with a guide inclined surface 63. When main shell 6 with during the sub-shell 5 assembly, guide plate 51 and the assembly of guide way 61 one-to-one for guide plate 51 slides along guide inclined plane 63 and prevents that anticreep piece 62 gets into anticreep groove 52 until anticreep piece 62, makes main shell 6 with fix between the sub-shell 5, thereby both realized the location equipment to main shell 6 and sub-shell 5, can also prevent after main shell 6 and sub-shell 5 assemble that main shell 6 and sub-shell 5 from droing, need not to increase extra structure for fixing, make the utility model discloses a structure is more simple.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims (10)

1. The utility model provides a contact subassembly improvement formula electromagnetic relay, includes the casing, set up in electromagnetic mechanism, reed subassembly and static contact in the casing, its characterized in that: the spring assembly comprises an insulation pushing piece, an electric connection piece, a moving contact, a first reed and a second reed, the insulation pushing piece is provided with a driving groove, the electric connection piece is installed in the shell, the insulation pushing piece is movably arranged in the shell, one end of the first reed and one end of the second reed are both connected with the electric connection piece, the other end of the first reed and the other end of the second reed are both installed in the driving groove, the second reed is located between the first reed and the electric connection piece, the moving contact is riveted to the first reed, and the strength of the second reed is greater than that of the first reed; the electromagnetic mechanism is used for driving the first reed to act through the insulation pushing piece so that the moving contact is abutted against or separated from the static contact.

2. The improved electromagnetic relay of contact assembly of claim 1, wherein: the other end of the first reed is provided with a first limiting part and a second limiting part, the insulating pushing piece is clamped by the two limiting parts, and the first limiting part and the second limiting part are respectively abutted against two sides of the insulating pushing piece.

3. The improved electromagnetic relay of contact assembly of claim 1, wherein: the shell is internally provided with a stroke groove, one side of the insulating pushing piece is provided with a stroke block, and the stroke block is movably arranged in the stroke groove.

4. The improved electromagnetic relay of contact assembly of claim 1, wherein: the insulation pushing piece is further provided with a limiting groove, the limiting groove is located below the driving groove, and the other end of the second reed is located in the limiting groove and moves in the limiting groove.

5. The improved electromagnetic relay of contact assembly of claim 1, wherein: the electromagnetic mechanism comprises an insulating support, a coil, a yoke and an armature piece, the insulating support is arranged in the shell, the coil is wound on the insulating support, the yoke is arranged on the insulating support and extends out of the insulating support from two ends of the insulating support, the armature piece is movably arranged in the shell, and the insulating push piece is connected to the armature piece;

when the static contact is in work, the yoke iron generates a corresponding magnetic field according to the direction of current flowing through the coil, the rotation of the armature piece is controlled through the change of the magnetic field, and the rotating armature piece drives the insulation pushing piece to drive the first spring to be close to or far away from the static contact.

6. The improved electromagnetic relay of claim 5, wherein: the yoke comprises an installation part, a first bending part, a second bending part, a first abutting part and a second abutting part, the installation part is installed in the insulating support, the first bending part and the second bending part are respectively positioned outside two ends of the insulating support, the first bending part and the second bending part are both connected to the installation part, the first abutting part and the second abutting part are respectively connected to the first bending part and the second bending part, and the first abutting part and the second abutting part are arranged oppositely; the armature piece is located first butt portion with between the second butt portion, the armature piece is provided with conflict subassembly respectively, conflict subassembly includes two armature plates and is located the permanent magnet between two armature plates, and two armature plates are lived respectively to the N utmost point, the S utmost point of permanent magnet, the armature piece runs through and is provided with two through-holes, and two armature plates are installed respectively in two through-holes, and the through-hole is suddenly stretched out respectively at the both ends of armature plate, and first butt portion, second butt portion are located respectively between two armature plates at armature piece both ends.

7. The improved electromagnetic relay of claim 5, wherein: the anchor piece is characterized in that a limiting blind hole is formed in the shell, a limiting plate is fixedly connected to the anchor piece, a limiting column is arranged on the limiting plate, and the limiting column is arranged in the limiting blind hole and moves in the limiting blind hole.

8. The improved electromagnetic relay of claim 5, wherein: the insulating pushing piece is provided with a slot, and one side of the slot, which is close to the armature piece, is provided with a guide inclined plane; the armature piece is provided with a control part, one end, far away from the armature piece, of the control part is provided with a fixed hook, the control part is installed in the slot, and the fixed hook is used for hooking the insulation pushing piece.

9. The improved electromagnetic relay of claim 8, wherein: the insulating piece that pushes away is provided with the adaptation groove, the fixed hook colludes and locates in the adaptation groove.

10. The improved electromagnetic relay of contact assembly of claim 1, wherein: the shell comprises an auxiliary shell and a main shell, wherein each side wall of the auxiliary shell is provided with a guide sheet, and each guide sheet is provided with an anti-falling groove; each side wall of the main shell is provided with a guide groove, an anti-falling block is arranged in each guide groove, and a guide inclined plane is arranged at one end, opposite to the auxiliary shell, of the anti-falling block; when the main shell is assembled with the auxiliary shell, the guide pieces and the guide grooves are assembled in a one-to-one correspondence mode, so that the guide pieces slide through the anti-falling blocks along the guide inclined planes until the anti-falling blocks enter the anti-falling grooves, and the main shell and the auxiliary shell are fixed.

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