CN204632670U - A kind of relay contact switch circuit of unilateal conduction - Google Patents
A kind of relay contact switch circuit of unilateal conduction Download PDFInfo
- Publication number
- CN204632670U CN204632670U CN201520208051.3U CN201520208051U CN204632670U CN 204632670 U CN204632670 U CN 204632670U CN 201520208051 U CN201520208051 U CN 201520208051U CN 204632670 U CN204632670 U CN 204632670U
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- contact
- switch circuit
- moving
- semiconductor diode
- relay
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Abstract
The utility model discloses a kind of relay contact switch circuit of unilateal conduction, relate to Electromechanical Control technology.Comprise electromagnetic coil relay, armature, moving contact, fixed contact, semiconductor diode, back-moving spring, solenoid controlled unit, contact switch circuit; Described moving contact and fixed contact are normally closed operating state under the effect of back-moving spring, positive and negative two contact conductors of semiconductor diode are connected with moving contact and fixed contact electricity in parallel respectively, and moving contact and fixed contact and semiconductor diode form contact switch circuit jointly; When described electromagnetic coil relay does not power up, moving contact and fixed contact close, and contact switch circuit can pass through bidirectional current; After described electromagnetic coil relay powers up, armature movement, moving contact separates with fixed contact, after in the contact switch circuit be jointly made up of moving contact, fixed contact and semiconductor diode, dynamic and static contact disconnects, there is the semiconductor diode seamless access circuit of unilateral conduction, can by the unidirectional current identical with semiconductor diode polarity in contact switch circuit.
Description
Technical field
The utility model relates to technical field of electromechanical control, particularly relates to a kind of relay contact switch circuit of unilateal conduction.
Background technology
The contact sets of common relay generally has two kinds of operating states: moving contact and fixed contact is normally closed or moving contact and fixed contact are often opened, constitute contact switch circuit that is normally closed or that often open, can bidirectional current be passed through in closed contact switch circuit, be called normally closed or normal-open type relay; After electromagnetic coil relay powers up, the electromagnetic force of generation is in armature, and the contact condition be fixed between moving contact on armature and fixed contact is changed, and changes disconnection or the on-state of contact switch circuit.
In closed type relay, after electromagnetic coil relay powers up, be converted to be separated off-state between moving contact with fixed contact by original compression closure state, the bidirectional current in contact switch circuit is cut off.
When reality uses, in the contact switch circuit of closed type Control, after closed type electromagnetic coil relay is powered up, when the contact switch circuit that moving contact and fixed contact are formed is converted to off-state by on-state, require that the contact switch circuit be made up of moving contact and fixed contact can by unidirectional current, the contact switch circuit of existing common relay can not meet this demand.
Utility model content
The purpose of this utility model is the relay contact switch circuit providing a kind of unilateal conduction for the deficiencies in the prior art.
The utility model is achieved through the following technical solutions:
The relay contact switch circuit of unilateal conduction, comprises electromagnetic coil relay, armature, moving contact, fixed contact, semiconductor diode, back-moving spring, solenoid controlled unit, contact switch circuit.
Described moving contact and fixed contact are normally closed operating state under the effect of back-moving spring, positive and negative two contact conductors of semiconductor diode are connected with moving contact and fixed contact electricity in parallel respectively, and the moving contact of relay and fixed contact and semiconductor diode form contact switch circuit jointly.
When described solenoid controlled unit does not power up electromagnetic coil relay, armature is failure to actuate, be fixed on moving contact on armature and fixed contact to press down in the effect of back-moving spring and close conjunction, the contact switch circuit ON be jointly made up of moving contact, fixed contact and semiconductor diode, can pass through twocouese electric current.
After described solenoid controlled unit powers up electromagnetic coil relay, under the effect of electromagnetic coil relay electromagnetic force, armature movement, the moving contact be fixed on armature is separated with fixed contact, in the contact switch circuit be jointly made up of moving contact, fixed contact and semiconductor diode, moving contact and fixed contact disconnect, the semiconductor diode seamless access be connected with moving contact and fixed contact electricity in parallel; Because semiconductor diode has unilateral conduction, thus still can by the unidirectional current identical with semiconductor diode polarity by moving contact, fixed contact and contact switch circuit that semiconductor diode is formed jointly, with the opposite polarity electric current of semiconductor diode then not by.
The control form of described solenoid controlled unit is not limited to automatic control.
The utility model structure is simple, and after can meeting the normally-closed contact disconnection of relay, contact switch circuit can by the actual user demand of one direction electric current.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit diagram of the present utility model.
In figure: 1, electromagnetic coil relay, 2, armature, 3, moving contact, 4, fixed contact, 5, semiconductor diode, 6, back-moving spring, 7, unidirectional current, 8, solenoid controlled unit, 9, contact switch circuit, 10, bidirectional current.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further:
With reference to shown in Fig. 1 and Fig. 2, the relay contact switch circuit of unilateal conduction, comprises electromagnetic coil relay 1, armature 2, moving contact 3, fixed contact 4, semiconductor diode 5, back-moving spring 6, solenoid controlled unit 8, contact switch circuit 9.
Described moving contact 3 and fixed contact 4 are normally closed operating state under the effect of back-moving spring 6, positive and negative two contact conductors of semiconductor diode 5 are electrically connected in parallel with moving contact 3 and fixed contact 4 respectively, and moving contact 3 and fixed contact 4 form contact switch circuit 9 jointly with semiconductor diode 5.
When described solenoid controlled unit 8 does not power up electromagnetic coil relay 1, armature 2 is failure to actuate, the moving contact 3 be fixed on armature 2 presses down in the effect of back-moving spring 6 with fixed contact 4 and closes conjunction, the contact switch circuit 9 be jointly made up of moving contact 3, fixed contact 4 and semiconductor diode 5 is connected, and can pass through bidirectional current 10.
After described solenoid controlled unit 8 pairs of electromagnetic coil relays 1 power up, under the effect of electromagnetic coil relay 1 electromagnetic force, armature 2 action, the moving contact 3 be fixed on armature 2 is separated with fixed contact 4, in the contact switch circuit 9 be jointly made up of moving contact 3, fixed contact 4 and semiconductor diode 5, moving contact 3 and fixed contact 4 disconnect, semiconductor diode 5 seamless access be connected with moving contact 3 and fixed contact 4 electricity in parallel; Because semiconductor diode 5 has unilateral conduction, thus still can by the unidirectional current 7 identical with semiconductor diode 5 polarity by moving contact 3, fixed contact 4 and contact switch circuit 9 that semiconductor diode 5 is formed jointly, with the opposite polarity electric current of semiconductor diode 5 then not by.
The control form of described solenoid controlled unit 8 is not limited to automatic control.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (4)
1. the relay contact switch circuit of unilateal conduction, comprises electromagnetic coil relay, armature, moving contact, fixed contact, semiconductor diode, back-moving spring, solenoid controlled unit, contact switch circuit; It is characterized in that: the normally closed connection under the effect of back-moving spring of moving contact and fixed contact, positive and negative two contact conductors of semiconductor diode are in parallel with moving contact and fixed contact to be respectively electrically connected.
2. the relay contact switch circuit of unilateal conduction according to claim 1, is characterized in that: the moving contact of semiconductor diode and relay and fixed contact is in parallel jointly forms relay contact switch circuit.
3. the relay contact switch circuit of unilateal conduction according to claim 1, is characterized in that: the operating state of electromagnetic coil relay is by solenoid controlled unit controls.
4. the relay contact switch circuit of unilateal conduction according to claim 1, is characterized in that: the control form of solenoid controlled unit is for automatically controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208051.3U CN204632670U (en) | 2015-04-02 | 2015-04-02 | A kind of relay contact switch circuit of unilateal conduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208051.3U CN204632670U (en) | 2015-04-02 | 2015-04-02 | A kind of relay contact switch circuit of unilateal conduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204632670U true CN204632670U (en) | 2015-09-09 |
Family
ID=54051671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520208051.3U Expired - Fee Related CN204632670U (en) | 2015-04-02 | 2015-04-02 | A kind of relay contact switch circuit of unilateal conduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204632670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420452A (en) * | 2020-11-16 | 2021-02-26 | 天翼物联科技有限公司 | Switching type electromagnetic relay and control circuit thereof |
-
2015
- 2015-04-02 CN CN201520208051.3U patent/CN204632670U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420452A (en) * | 2020-11-16 | 2021-02-26 | 天翼物联科技有限公司 | Switching type electromagnetic relay and control circuit thereof |
| CN112420452B (en) * | 2020-11-16 | 2023-11-14 | 天翼物联科技有限公司 | Switching type electromagnetic relay and control circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518104 Room 301 of Fenghuang garden, step Chung Road, Shenzhen, Baoan District, Guangdong Patentee after: Xiang Zeyu Address before: Shenzhen City manhole town of Guangdong Province, and 518104 new road step Chung Pengcheng garden C building D room 1105 Patentee before: Xiang Zeyu |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |