CN210628199U - Small-size PCB formula electromagnetic relay - Google Patents
Small-size PCB formula electromagnetic relay Download PDFInfo
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- CN210628199U CN210628199U CN201922272600.4U CN201922272600U CN210628199U CN 210628199 U CN210628199 U CN 210628199U CN 201922272600 U CN201922272600 U CN 201922272600U CN 210628199 U CN210628199 U CN 210628199U
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- yoke
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Abstract
The utility model relates to a small-sized PCB type electromagnetic relay, which comprises a base, a shell arranged on the base, an electromagnetic system and a contact system, the electromagnetic system comprises a coil rack, an iron core, a coil, a yoke iron, an armature iron and a pressure spring piece arranged between the yoke iron and the armature iron, the contact system comprises a pushing frame linked with the armature, a movable spring linked with the pushing frame, and a static contact piece arranged on the base and matched with the movable spring, wherein one end of the yoke is provided with a clamping groove, two convex parts are symmetrically arranged in the clamping groove, a bending part clamped in the clamping groove is arranged in the middle of the armature, the two convex parts are abutted in the bending part, and the bending part is symmetrically provided with two through holes, one end of the armature is provided with a clamping part clamped in the pushing frame, and the other end of the armature is provided with a suction part matched with the iron core. The utility model has the advantages of simple structure, stable performance, reliability, strong load capacity and high sensitivity.
Description
Technical Field
The utility model relates to an electromagnetic relay, concretely relates to small-size PCB formula electromagnetic relay.
Background
An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current and a higher voltage by using a smaller current and a lower voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The existing electromagnetic relay is unreasonable in structural design, and the contact surface between the armature and the yoke is uneven, so that the contact surface between the armature and the iron core is not flat enough, and the electromagnetic relay cannot achieve the purpose of no hum, and has the defects of low sensitivity and weak load capacity.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, load capacity is strong, sensitivity is high small-size PCB formula electromagnetic relay.
In order to achieve the above purpose, the utility model adopts a small-sized PCB type electromagnetic relay, which comprises a base, a shell arranged on the base, an electromagnetic system and a contact system, the electromagnetic system comprises a coil rack, an iron core, a coil, a yoke iron, an armature iron and a pressure spring piece arranged between the yoke iron and the armature iron, the contact system comprises a pushing frame linked with the armature, a movable spring linked with the pushing frame, and a static contact piece arranged on the base and matched with the movable spring, wherein one end of the yoke is provided with a clamping groove, two convex parts are symmetrically arranged in the clamping groove, a bending part clamped in the clamping groove is arranged in the middle of the armature, the two convex parts are abutted in the bending part, and the bending part is symmetrically provided with two through holes, one end of the armature is provided with a clamping part clamped in the pushing frame, and the other end of the armature is provided with a suction part matched with the iron core.
The beneficial effect of above-mentioned structure is: the block of the portion of bending of armature is in the draw-in groove of yoke, the contact surface of armature and yoke is more level and smooth, thereby the contact surface of having guaranteed armature and iron core is more level and smooth, be favorable to improving the reliability of this electromagnetic relay work, be provided with the bellying of contradicting in the portion of bending of armature in the draw-in groove, thereby can guarantee that armature can be nimble on the yoke and act, this electromagnetic relay's sensitivity has been improved, thereby this electromagnetic relay has simple structure, stable performance is reliable, load capacity is strong, the advantage that sensitivity is high.
Particularly, the pushing frame on correspond joint portion department and be provided with the joint groove, the joint portion interlude of armature in the joint inslot, and be provided with an arc spacing groove on the both sides of joint portion respectively, the joint inslot corresponds each arc spacing groove punishment and does not be provided with a spacing post, spacing post block at the arc spacing inslot, and constitute the joint cooperation of pushing frame and armature. The pushing frame and the armature are in clamping fit, so that the pushing frame and the armature are convenient to assemble, the transmission of the armature and the pushing frame is more stable, and the working reliability of the electromagnetic relay is improved.
Particularly, anti-falling clamping blocks are arranged on two sides of the yoke, clamping holes are formed in the base corresponding to the anti-falling clamping blocks respectively, and the anti-falling clamping blocks are clamped in the clamping holes to form clamping fit of the base and the yoke. The anti-drop clamping block with anti-drop and anti-loose functions is arranged on the yoke, so that the yoke and the base are connected more compactly, and the working reliability of the electromagnetic relay is improved.
Drawings
Fig. 1 is a perspective view of the internal structure of the embodiment of the present invention.
Fig. 2 is a perspective view of an armature and a pushing frame according to an embodiment of the present invention.
Fig. 3 is a perspective view of an armature according to an embodiment of the present invention.
Fig. 4 is a perspective view of a yoke according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 4, an embodiment of the present invention is a small PCB-type electromagnetic relay, including a base 10, a housing disposed on the base 10, an electromagnetic system 20, and a contact system 30, where the electromagnetic system 20 includes a coil frame 21, an iron core 22, a coil, a yoke 23, an armature 24, and a pressure spring 25 disposed between the yoke 23 and the armature 24, the contact system 30 includes a pushing frame 31 disposed in linkage with the armature 24, a movable spring 32 disposed in linkage with the pushing frame 31, and a static spring 33 disposed on the base 10 and matched with the movable spring 32, one end of the yoke 23 is provided with a slot 231, two protrusions 232 are symmetrically disposed in the slot 231, a bending portion 241 engaged in the slot 231 is disposed in the middle of the armature 24, the two protrusions 232 abut against the bending portion 241, two through holes 242 are symmetrically disposed on the bending portion 241, one end of the armature 24 has a clamping portion engaged in the pushing frame 31, and the other end of the armature 24 has an attraction portion 244 that engages the core 22.
As shown in fig. 2 and 3, the pushing frame 31 is provided with a clamping groove 311 corresponding to the clamping portion 243, the clamping portion 243 of the armature 24 is inserted into the clamping groove 311, the two sides of the clamping portion 243 are respectively provided with an arc-shaped limiting groove 245, a limiting column 312 is respectively arranged in the clamping groove 311 corresponding to each arc-shaped limiting groove 245, the limiting column 312 is clamped in the arc-shaped limiting groove 245, and the pushing frame 31 is matched with the armature 24 in a clamping manner. The pushing frame and the armature are in clamping fit, so that the pushing frame and the armature are convenient to assemble, the transmission of the armature and the pushing frame is more stable, and the working reliability of the electromagnetic relay is improved. As shown in fig. 1 and 4, anti-falling-off latches 233 are disposed on two sides of the yoke 23, clamping holes 101 are disposed on the base 10 corresponding to the anti-falling-off latches 233, and the anti-falling-off latches 233 are clamped in the clamping holes 101 to form a clamping fit between the base 10 and the yoke 23. The anti-drop clamping block with anti-drop and anti-loose functions is arranged on the yoke, so that the yoke and the base are connected more compactly, and the working reliability of the electromagnetic relay is improved.
The block of the portion of bending of armature is in the draw-in groove of yoke, the contact surface of armature and yoke is more level and smooth, thereby the contact surface of having guaranteed armature and iron core is more level and smooth, be favorable to improving the reliability of this electromagnetic relay work, be provided with the bellying of contradicting in the portion of bending of armature in the draw-in groove, thereby can guarantee that armature can be nimble on the yoke and act, this electromagnetic relay's sensitivity has been improved, thereby this electromagnetic relay has simple structure, stable performance is reliable, load capacity is strong, the advantage that sensitivity is high.
Claims (3)
1. The utility model provides a small-size PCB formula electromagnetic relay, includes base, shell, electromagnetic system, the contact system of setting on the base, electromagnetic system includes coil former, iron core, coil, yoke, armature, sets up the pressure spring piece between yoke and armature, the contact system include with armature linkage setting push away the frame, with push away the movable contact spring that the frame linkage set up, set up on the base and with movable contact spring matched with static contact, its characterized in that: the one end of yoke be provided with the draw-in groove, the symmetry is provided with two bellyings in this draw-in groove, the middle part of armature be provided with the portion of bending of block in the draw-in groove, two bellyings are contradicted in the portion of bending, and the symmetry is provided with two through-holes in the portion of bending, the one end of armature have the joint portion of block in promoting the frame, and the other end of armature has the actuation portion with iron core matched with.
2. A miniature PCB-type electromagnetic relay according to claim 1, wherein: the pushing frame on correspond joint portion department and be provided with the joint groove, the joint portion interlude of armature in the joint inslot, and be provided with an arc spacing groove on the both sides of joint portion respectively, the joint inslot corresponds each arc spacing groove punishment and does not be provided with a spacing post, spacing post block in the arc spacing inslot, and constitute the joint cooperation of pushing frame and armature.
3. A miniature PCB-type electromagnetic relay according to claim 1 or 2, wherein: the anti-falling fixture block is arranged on two sides of the yoke, the base is provided with clamping holes corresponding to the anti-falling fixture blocks, and the anti-falling fixture blocks are clamped in the clamping holes and form clamping matching of the base and the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272600.4U CN210628199U (en) | 2019-12-17 | 2019-12-17 | Small-size PCB formula electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272600.4U CN210628199U (en) | 2019-12-17 | 2019-12-17 | Small-size PCB formula electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210628199U true CN210628199U (en) | 2020-05-26 |
Family
ID=70751368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922272600.4U Active CN210628199U (en) | 2019-12-17 | 2019-12-17 | Small-size PCB formula electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210628199U (en) |
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2019
- 2019-12-17 CN CN201922272600.4U patent/CN210628199U/en active Active
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