CN112786370A - Internal connection soft arranging wire type electromagnetic relay - Google Patents
Internal connection soft arranging wire type electromagnetic relay Download PDFInfo
- Publication number
- CN112786370A CN112786370A CN202110169529.6A CN202110169529A CN112786370A CN 112786370 A CN112786370 A CN 112786370A CN 202110169529 A CN202110169529 A CN 202110169529A CN 112786370 A CN112786370 A CN 112786370A
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- China
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- circuit board
- armature
- yoke
- electromagnetic relay
- flexible circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention relates to the technical field of relays, and particularly discloses an internal flexible flat cable type electromagnetic relay which comprises an insulator, an electromagnet, a static terminal, an armature, a movable reed and an elastic piece, wherein the electromagnet and the static terminal are arranged on the insulator; the flexible circuit board is also included, the electromagnet is provided with a yoke iron, the middle part of the armature iron is rotationally arranged on the yoke iron, the elastic piece acts on one end of the armature iron, and the movable spring is arranged at the other end of the armature iron; the yoke iron is provided with a first welding leg, and two ends of the flexible circuit board are respectively and electrically conducted with the movable reed and the yoke iron; through the arrangement of the flexible circuit board, the movable spring plate is ensured to be conveniently conducted with the yoke, the movable spring plate is not required to be directly welded on the yoke, the structural design of the movable spring plate is simplified, and the processing and manufacturing cost of the movable spring plate is reduced; with the help of the characteristics of flexible and small size of the flexible circuit board, the convenience of installation is improved, the size of the relay is simplified, and the relay conforms to the development trend of miniaturization.
Description
Technical Field
The invention relates to the technical field of relays, and particularly discloses an internal connection flexible flat cable type electromagnetic relay.
Background
The relay is one of the automatic switch commonly used in the circuit, the kind of relay is various, electromagnetic relay is one of the kind that the relay is commonly used, electromagnetic relay is formed by the equipment of a plurality of spare parts, electromagnetic relay mostly need switch on or break off fixed terminal with the help of the movable terminal, in the installation of movable terminal, often need fix the movable terminal on the yoke of electro-magnet, make the movable terminal switch on external circuit via the yoke, often lead to the structure of movable terminal complicated, the manufacturing efficiency is low, electromagnetic relay's packaging efficiency has also been reduced simultaneously.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the internally-connected flexible flat cable type electromagnetic relay, a movable spring is not required to be directly welded on a yoke, the structural design of the movable spring is simplified, and the processing and manufacturing cost of the movable spring is reduced; with the help of the characteristics of flexible and small size of the flexible circuit board, the convenience of installation is improved, the size of the relay is simplified, and the relay conforms to the development trend of miniaturization.
In order to achieve the purpose, the invention discloses an internally-connected flexible flat cable type electromagnetic relay, which comprises an insulator, an electromagnet, a static terminal, an armature, a movable reed, an elastic piece and a magnetic attraction force, wherein the electromagnet and the static terminal are arranged on the insulator; the flexible circuit board is also included, the electromagnet is provided with a yoke iron, the middle part of the armature iron is rotationally arranged on the yoke iron, the elastic piece acts on one end of the armature iron, and the movable spring is arranged at the other end of the armature iron; the yoke is provided with a first welding leg, and two ends of the flexible circuit board are respectively and electrically connected with the movable reed and the yoke.
The movable reed comprises a conductive sheet and a movable contact arranged on the conductive sheet, the conductive sheet is provided with a main sheet and an auxiliary sheet arranged on the main sheet, one end of the main sheet is arranged on the yoke, the movable contact is arranged at the other end of the main sheet, and the movable contact is used for switching on or off the static terminal; the two ends of the flexible circuit board are respectively welded to the auxiliary sheet and the yoke.
The flexible circuit board comprises a yoke, a protruding portion and a concave-convex area, wherein the protruding portion is arranged on the yoke, the concave-convex area is arranged on the protruding portion, one end of the flexible circuit board is welded to the concave-convex area of the protruding portion, and the concave-convex area is used for accommodating external soldering tin.
The auxiliary sheet is provided with a through hole penetrating through the auxiliary sheet, the other end of the flexible circuit board is accommodated in the through hole, and the through hole is used for accommodating soldering tin for welding the auxiliary sheet and the flexible circuit board together.
Wherein, the elastic component is the spring, and the yoke is equipped with first sand grip, and armature is equipped with the second sand grip, and first sand grip, second sand grip all are equipped with the notch, and the both ends of elastic component set up respectively in two sand grips, and the notch is used for holding the tip of establishing the elastic component.
The yoke iron is provided with two limiting bulges, the armature iron is provided with two limiting penetrating grooves, and the two limiting bulges are respectively accommodated in the two limiting penetrating grooves.
The buffer part is positioned in the limiting penetrating groove and is used for absorbing the touch impact force between the limiting protrusion and the armature.
The circuit board comprises an insulator, a reference flat plate and a reference flat plate, wherein the insulator is matched with the reference flat plate; the number of the first welding feet is three, and connecting lines among the three first welding feet form a triangle; the static terminal is provided with a second welding leg, and the second welding leg and the three first welding legs are arranged in an enclosing mode to form a quadrangle; the solder leg penetrates the reference plate and is used for soldering on the circuit board.
The insulator is provided with two power supply terminals, the two ends of the coil of the electromagnet are electrically conducted with the two power supply terminals respectively, the power supply terminals are provided with a guiding and connecting part, the guiding and connecting part is provided with a spiral blind groove, the spiral blind groove surrounds the central axis of the guiding and connecting part and extends along the length direction of the guiding and connecting part, a lead of the electromagnet is spirally wound on the outer side of the guiding and connecting part and is positioned in the spiral blind groove, and the spiral blind groove is used for accommodating soldering tin which is used for welding the guiding and connecting part and the lead of.
The plastic shell is further included, the insulator is provided with a positioning column, the yoke iron is provided with a positioning notch hole for accommodating the positioning column, and the yoke iron is inserted on the insulator; the plastic shell is sleeved outside the insulator, and the electromagnet, the static terminal, the armature, the elastic piece, the movable reed and the flexible circuit board are all positioned in the plastic shell.
The invention has the beneficial effects that: through the arrangement of the flexible circuit board, the movable spring plate is ensured to be conveniently conducted with the yoke, the movable spring plate is not required to be directly welded on the yoke, the structural design of the movable spring plate is simplified, and the processing and manufacturing cost of the movable spring plate is reduced; with the help of the characteristics of flexible and small size of the flexible circuit board, the convenience of installation is improved, the size of the relay is simplified, and the relay conforms to the development trend of miniaturization.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is an enlarged view of a portion of the plastic shell of the present invention in cross-section.
The reference numerals include:
1-insulator 2-electromagnet 3-static terminal
4-armature 5-movable reed 6-flexible circuit board
7-moving contact 8-main piece 9-auxiliary piece
11-boss 12-hole 13-first convex strip
14-second convex strip 15-elastic piece 16-limiting bulge
17-limiting through groove 18-reference flat plate 19-first welding leg
21-second solder foot 22-power terminal 23-lead part
24-plastic shell 25-iron core 26-center hole
27-air holes 28-through holes 211-yoke iron.
Detailed Description
For the 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.
Referring to fig. 1 to 3, an internal flexible flat cable electromagnetic relay according to the present invention includes an insulator 1, an electromagnet 2 and a fixed terminal 3 mounted on the insulator 1, an armature 4 movably disposed, a movable spring 5 fixedly disposed on the armature 4, and an elastic member 15 for driving the movable spring 5 to reset.
The electromagnet 2 generates magnetic force after being electrified, the magnetic force of the electromagnet 2 is used for attracting the armature 4 to enable the armature 4 to move, and the moving armature 4 drives the movable reed 5 to enable the movable reed 5 to be connected or disconnected with the static terminal 3. In this process, the elastic member 15 is elastically deformed. When the electromagnet 2 is de-energized, the electromagnet 2 picks up the magnetic force and does not attract the armature 4 any more, and the elastic piece 15 drives the armature 4 to reset under the action of the elastic restoring force.
The electromagnetic relay also comprises a flexible circuit board 6, the electromagnet 2 is provided with a yoke 211, the middle part of the armature 4 is rotatably arranged on the yoke 211, the elastic piece 15 acts on one end of the armature 4, in the embodiment, one end of the elastic piece 15 is connected with the armature 4, and the movable spring 5 is arranged on the other end of the armature 4; the yoke 211 is configured with a first solder leg 19, and two ends of the flexible circuit board 6 are electrically connected to the movable contact spring 5 and the yoke 211, respectively.
Through the arrangement of the flexible circuit board 6, the movable spring 5 is ensured to be conveniently conducted with the yoke 211, the movable spring 5 is not required to be directly welded on the yoke 211, the structural design of the movable spring 5 is simplified, and the processing and manufacturing cost of the movable spring 5 is reduced; with the help of the characteristics of changeability and small size of the flexible circuit board 6, the convenience of installation is improved, the size of the relay is simplified, and the relay conforms to the miniaturization development trend.
The movable spring 5 comprises a conductive sheet and a movable contact 7 arranged on the conductive sheet, the conductive sheet is substantially in a sheet shape, the conductive sheet is in an integrated structure, the conductive sheet is provided with a main sheet 8 and an auxiliary sheet 9 arranged on the main sheet 8, preferably, the main sheet 8 and the auxiliary sheet 9 are arranged in a coplanar manner, and the conductive sheet can be elastically deformed.
One end of the main piece 8 is fixedly arranged on the yoke 211, the moving contact 7 is fixedly arranged on the other end of the main piece 8, and the moving contact 7 is used for conducting or disconnecting the static terminal 3; both ends of the flexible circuit board 6 are soldered to the sub-sheet 9 and the yoke 211, respectively. By means of welding the flexible circuit board 6 and the auxiliary sheet 9, on one hand, the flexible circuit board 6 is stably connected with the movable spring 5, on the other hand, the connection position of the flexible circuit board 6 and the movable spring 5 is far away from the movable contact 7, and the movable contact 7 is prevented from being influenced and is not used well.
The electromagnet 2 further comprises a protruding portion 11 arranged on the yoke 211 and a concave-convex area arranged on the protruding portion 11, the yoke 211 and the protruding portion 11 are of an integrated structure, one end of the flexible circuit board 6 is welded on the concave-convex area of the protruding portion 11 through soldering tin, and the concave-convex area is used for accommodating external soldering tin. By means of the arrangement of the concave-convex areas, the solder holding amount between the flexible circuit board 6 and the convex parts 11 is increased, and the flexible circuit board and the convex parts are firmly connected together.
The auxiliary sheet 9 has a through hole 12 penetrating the auxiliary sheet 9, the other end of the flexible circuit board 6 is accommodated in the through hole 12, and the through hole 12 is used for accommodating solder for soldering the auxiliary sheet 9 and the flexible circuit board 6 together. In the process of mounting the flexible circuit board 6 and the auxiliary sheet 9, the flexible circuit board 6 is firstly installed in the through hole 12, then the soldering tin is added into the through hole 12, and the flexible circuit board 6 and the auxiliary sheet 9 are welded together by means of the soldering tin. The amount of solder held between the flexible circuit board 6 and the sub-sheet 9 is increased by the design of the through-hole 12.
Preferably, the number of the through holes 12 is multiple, and the flexible printed circuit 6 passes through the through holes 12 on the auxiliary sheet 9 one by one, so that the flexible printed circuit 6 is wound on the auxiliary sheet 9 in an S shape, the friction force between the flexible printed circuit 6 and the auxiliary sheet 9 is increased, the probability of separation of the flexible printed circuit 6 and the auxiliary sheet 9 is reduced, and the connection stability of the flexible printed circuit and the auxiliary sheet is ensured.
The elastic piece 15 is a spring, a first convex strip 13 is arranged on the yoke 211, a second convex strip 14 is arranged on the armature 4, notches are arranged on the first convex strip 13 and the second convex strip 14 respectively, the notches are formed by concavely arranging one side, away from each other, of the two convex strips, two ends of the elastic piece 15 are respectively arranged on the two convex strips, and the notches are used for accommodating the end parts of the elastic piece 15.
During actual installation, the two ends of the elastic member 15 are respectively sleeved on the outer sides of the two convex strips, the end portion of the elastic member 15 is located in the notch, the end portion of the elastic member 15 is limited by the inner side surface of the notch, the elastic member 15 is prevented from moving relative to the convex strips, and the elastic member 15 is stably hung on the convex strips.
The yoke 211 is provided with two limit protrusions 16, the armature 4 is provided with two limit through grooves 17, and the two limit protrusions 16 are respectively accommodated in the two limit through grooves 17. In the process of mounting the yoke 211 and the armature 4, the two limit protrusions 16 are respectively arranged in the two limit through grooves 17, and the armature 4 is blocked and abutted by the two limit protrusions 16, so that the armature 4 and the yoke 211 are stably assembled together, and the poor use caused by the relative movement of the armature 4 and the yoke is avoided.
The buffer part is positioned in the limit penetrating groove 17 and is used for absorbing the touch impact force between the limit bulge 16 and the armature 4. Preferably, the buffer part is made of silica gel, and the buffer part is used for absorbing the collision impact force between the limiting protrusion 16 and the armature 4, so that the collision noise is reduced, the frequent collision and damage of the limiting protrusion and the armature are avoided, and the service lives of the limiting protrusion and the armature are prolonged.
The circuit board is characterized by further comprising a reference flat plate 18 matched with the insulator 1, wherein the reference flat plate 18 is used for being pressed and held on an external circuit board in an abutting mode, and the reference flat plate 18 is a rectangular flat plate and ensures that the reference flat plate 18 is stably pressed and held on the circuit board. The number of the first welding feet 19 is three, and connecting lines among the three first welding feet 19 form a triangle; the static terminal 3 is provided with a second welding leg 21, and the second welding leg 21 and the three first welding legs 19 are encircled to form a quadrangle; the solder fillets extend through the reference plate 18 and are used for soldering to the circuit board. By means of the layout design of the second welding feet 21 and the three first welding feet 19, the insulator 1 is stably welded on the circuit board, the circumferential stress balance of the insulator 1 is ensured, and the poor use caused by the uneven stress of the insulator 1 is avoided.
Insulator 1 is equipped with two power supply terminals 22, and the both ends of the coil of electro-magnet 2 electric conduction two power supply terminals 22 respectively, and power supply terminal 22 has leading connection portion 23, and leading connection portion 23 has spiral blind groove, and spiral blind groove extends the setting around the central axis of leading connection portion 23 and along the length direction of leading connection portion 23, and the wire spiral of electro-magnet 2 is around establishing in the outside of leading connection portion 23 and being located spiral blind groove, and spiral blind groove is used for holding the soldering tin that the wire welding of leading connection portion 23 and electro-magnet 2 is in the same place.
In the process of connecting the coil and the power terminal 22, the end of the coil is wound on the outer side of the guide connection part 23 and is positioned in the spiral blind groove, and the end of the coil is stopped and limited by the inner groove side surface of the spiral blind groove, so that the end of the coil is quickly and accurately arranged on the guide connection part 23. The spiral blind groove accommodates solder, and the amount of solder retained between the lead-connecting portion 23 and the coil is increased, so that the lead-connecting portion and the coil are firmly welded together.
The electromagnetic relay further comprises a plastic shell 24, the insulator 1 is provided with a positioning column, the yoke 211 is provided with a positioning notch used for accommodating the positioning column, and the yoke 211 is inserted on the insulator 1; the plastic shell 24 is sleeved on the outer side of the insulator 1, and the electromagnet 2, the static terminal 3, the armature 4, the elastic piece 15, the movable reed 5 and the flexible circuit board 6 are all positioned in the plastic shell 24.
The electromagnet 2 further has an iron core 25, the iron core 25 penetrates the insulator 1, one end of the iron core 25 protrudes out of the insulator 1 to be connected to and penetrates the yoke 211, and the other end of the iron core 25 is used for attracting the armature 4. The iron core 25 has a central hole 26 penetrating the iron core 25, and the side wall of the plastic shell 24 has air holes 27, and the air holes 27 are wave-shaped.
In the use process of the electromagnetic relay, when the temperature of the air in the plastic shell 24 rises, the air in the plastic shell 24 flows through the central hole 26 and is exhausted through the air vent 27, and the air flowing through the central hole 26 assists in dissipating heat of the iron core 25, so that the iron core 25 is prevented from being too high in stability and poor in use. By means of the wavy arrangement of the air holes 27, when outside water enters the air holes 27, the water is blocked by means of the wavy wave crests, and the waterproof effect of the plastic shell 24 is achieved.
Preferably, the armature 4 has a plurality of through holes 28, the through holes 28 penetrate through the armature 4 and communicate with the central hole 26, and through the arrangement of the through holes 28, when the iron core 25 sucks the armature 4, air can flow along the through holes 28 and the central hole 26, so as to realize auxiliary heat dissipation of the iron core 25.
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. An internal soft flat cable type electromagnetic relay comprises an insulator, an electromagnet and a static terminal which are arranged on the insulator, an armature which is movably arranged, a movable reed which is arranged on the armature, and an elastic piece which is used for driving the movable reed to reset, wherein the magnetic attraction of the electromagnet is used for attracting the armature to enable the armature to move, and the moving armature drives the movable reed to enable the movable reed to be connected with or disconnected from the static terminal; the method is characterized in that: the flexible circuit board is also included, the electromagnet is provided with a yoke iron, the middle part of the armature iron is rotationally arranged on the yoke iron, the elastic piece acts on one end of the armature iron, and the movable spring is arranged on the other end of the armature iron; the yoke is provided with a first welding leg, and two ends of the flexible circuit board are respectively and electrically connected with the movable reed and the yoke.
2. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the movable reed comprises a conductive sheet and a movable contact arranged on the conductive sheet, the conductive sheet is provided with a main sheet and an auxiliary sheet arranged on the main sheet, one end of the main sheet is arranged on the yoke, the movable contact is arranged at the other end of the main sheet, and the movable contact is used for connecting or disconnecting the static terminal; the two ends of the flexible circuit board are respectively welded to the auxiliary sheet and the yoke.
3. The inner flexible flat cable type electromagnetic relay according to claim 2, wherein: the flexible circuit board is characterized by further comprising a protruding portion arranged on the yoke and a concave-convex area arranged on the protruding portion, one end of the flexible circuit board is welded to the concave-convex area of the protruding portion, and the concave-convex area is used for accommodating external soldering tin.
4. The inner flexible flat cable type electromagnetic relay according to claim 2, wherein: the auxiliary sheet is provided with a through hole penetrating through the auxiliary sheet, the other end of the flexible circuit board is accommodated in the through hole, and the through hole is used for accommodating soldering tin for welding the auxiliary sheet and the flexible circuit board together.
5. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the elastic piece is the spring, and the yoke is equipped with first sand grip, and armature is equipped with the second sand grip, and first sand grip, second sand grip all are equipped with the notch, and the both ends of elastic piece set up respectively in two sand grips, and the notch is used for holding the tip of establishing the elastic piece.
6. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the yoke iron is provided with two limiting bulges, the armature iron is provided with two limiting penetrating grooves, and the two limiting bulges are respectively accommodated in the two limiting penetrating grooves.
7. The inner flexible flat cable type electromagnetic relay according to claim 6, wherein: the buffer part is positioned in the limit penetrating groove and is used for absorbing the touch impact force between the limit protrusion and the armature.
8. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the circuit board is characterized by also comprising a reference flat plate matched with the insulator, wherein the reference flat plate is used for being pressed on an external circuit board and is a rectangular flat plate; the number of the first welding feet is three, and connecting lines among the three first welding feet form a triangle; the static terminal is provided with a second welding leg, and the second welding leg and the three first welding legs are arranged in an enclosing mode to form a quadrangle; the solder leg penetrates the reference plate and is used for soldering on the circuit board.
9. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the insulator is equipped with two power terminals, and the both ends of the coil of electro-magnet electric conduction two power terminals respectively, and the power terminal has the portion of leading and connects, and the portion of leading and connecting has spiral blind groove, and spiral blind groove centers on the central axis of the portion of leading and connects and extends the setting along the length direction of the portion of leading and connecting, and the wire spiral of electro-magnet is around establishing in the outside of the portion of leading and connecting and being located spiral blind groove, and spiral blind groove is used for holding the soldering tin of establishing the wire welding together of portion of leading and.
10. The inner flexible flat cable type electromagnetic relay according to claim 1, wherein: the plastic shell is further included, the insulator is provided with a positioning column, the yoke iron is provided with a positioning notch hole for accommodating the positioning column, and the yoke iron is inserted on the insulator; the plastic shell is sleeved outside the insulator, and the electromagnet, the static terminal, the armature, the elastic piece, the movable reed and the flexible circuit board are all positioned in the plastic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110169529.6A CN112786370A (en) | 2021-02-07 | 2021-02-07 | Internal connection soft arranging wire type electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110169529.6A CN112786370A (en) | 2021-02-07 | 2021-02-07 | Internal connection soft arranging wire type electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112786370A true CN112786370A (en) | 2021-05-11 |
Family
ID=75761189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110169529.6A Pending CN112786370A (en) | 2021-02-07 | 2021-02-07 | Internal connection soft arranging wire type electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112786370A (en) |
-
2021
- 2021-02-07 CN CN202110169529.6A patent/CN112786370A/en active Pending
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