CN203521233U - Relay-based power switch - Google Patents
Relay-based power switch Download PDFInfo
- Publication number
- CN203521233U CN203521233U CN201320728032.4U CN201320728032U CN203521233U CN 203521233 U CN203521233 U CN 203521233U CN 201320728032 U CN201320728032 U CN 201320728032U CN 203521233 U CN203521233 U CN 203521233U
- Authority
- CN
- China
- Prior art keywords
- relay
- box body
- button
- filter
- mains switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a relay-based power switch, which comprises a box body and a surface cover. The box body and the surface cover are connected via a screw; an upper wire incoming port and a lower wire incoming port are arranged in the box body; a button is arranged on the surface cover; the back of the button is provided with a pair of contact pins; the box body is internally provided with a circuit cavity; the circuit cavity is internally provided with a relay and a circuit board; a wiring head is arranged on the circuit cavity; the relay comprises a coil and a pair of normally open contacts; a step-down transformer, a rectifier and a filter are arranged on the circuit board; the step-down transformer is connected with the filter via the rectifier; the filter is connected with the coil of the relay; the pair of contact pins of the button are in serial connection between the filter and the coil of the relay; and the normally open contacts of the relay are connected with the wiring head. According to the power switch, as the button is in serial connection in a low-voltage direct-current loop and the energized equipment relay and the circuit board are arranged in the circuit cavity and are separated from the outside, security is better.
Description
Technical field
The utility model relates to a kind of mains switch, especially a kind of mains switch based on relay.
Background technology
Switch refers to that one can make open circuit, makes current interruptions or make it flow to the electronic component of other circuit.The effect of mains switch is to make to form conducting or shutoff between power consumption equipment and power supply, can say, in various electricity consumption occasions, all can use mains switch.
Existing mains switch comprises box body and cover, and described box body and cover are connected by screw, and is provided with upper incoming line mouth and lower incoming line on box body, on cover, be provided with button, the button back side is provided with a pair of haptic element, and haptic element is connected in loop, and upper incoming line mouth and lower incoming line are for threading; The button of this mains switch directly contacts with 220V voltage, and fail safe is poor.
Owing to there being such problem, so be necessary existing mains switch to improve.
Utility model content
The mains switch based on relay that the purpose of this utility model is design in order to solve the deficiency of above-mentioned technology a kind of simple in structure, fail safe is good.
The mains switch based on relay that the utility model is designed, comprise box body and cover, described box body and cover are connected by screw, on box body, be provided with upper incoming line mouth and lower incoming line, on cover, be provided with button, the button back side is provided with a pair of haptic element, is provided with a circuit chamber in described box body, described circuit is provided with relay and circuit board in chamber, on circuit chamber, is provided with connector lug; Described relay pack vinculum circle and a pair of normally opened contact; Described circuit board is provided with reducing transformer, rectifier and filter, described reducing transformer connects described filter by rectifier, described filter is connected with the coil of described relay, the a pair of haptic element of described button is serially connected between filter and the coil of relay, and the normally opened contact of described relay is connected with described connector lug.
As preferably:
Described upper incoming line mouth is provided with protecting pipe;
Described cover is provided with air vent hole;
Between described circuit chamber and cover, be provided with cystosepiment;
Described screw is sunk screw, can certainly be plain screw.
The mains switch based on relay that the utility model is designed, reducing transformer connects 220V civil power, connector lug is serially connected in the current supply circuit of power consumption equipment, what 220V civil power formed after step-down, rectification and filtering is direct current, the a pair of haptic element of button is serially connected between filter and the coil of relay, during use, press the button, electric, normally opened contact adhesive that coil obtains, normally opened contact is with regard to conducting like this, because normally opened contact is connected with connector lug, like this between connector lug also with regard to conducting, thereby realize switching function; Because button is serially connected in the DC loop of a low pressure, so fail safe is better; On the other hand, because charging equipment relay and circuit board are located in a circuit chamber, separate with outside, therefore can further improve fail safe.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mains switch of embodiment 1 based on relay;
Fig. 2 is the circuit module schematic diagram of the mains switch of embodiment 1 based on relay;
Fig. 3 is the structural representation of the mains switch of embodiment 2 based on relay;
Fig. 4 is the structural representation of the mains switch of embodiment 3 based on relay;
Fig. 5 is the structural representation of the mains switch of embodiment 4 based on relay;
In figure: box body 1, cover 2, screw 3, upper incoming line mouth 4, lower incoming line 5, circuit chamber 6, relay 7, coil 71, normally opened contact 72, circuit board 8, connector lug 9, reducing transformer 10, rectifier 11, filter 12, button 13, haptic element 14, protecting pipe 15, air vent hole 16, cystosepiment 17, lid 18.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, 2, the described mains switch based on relay of the present embodiment, comprise box body 1 and cover 2, described box body 1 is connected by screw 3 with cover 2, on box body 1, be provided with upper incoming line mouth 4 and lower incoming line 5, on cover 2, be provided with button 13, button 13 back sides are provided with a pair of haptic element 14, in described box body 1, be provided with a circuit chamber 6, circuit chamber 6 has a papery lid 18 of being convenient to threading punching, in described circuit chamber 6, be provided with relay 7 and circuit board 8, on circuit chamber 6, be provided with connector lug 9; Described relay 7 comprises coil 71 and a pair of normally opened contact 72; Described circuit board 8 is provided with reducing transformer 10, rectifier 11 and filter 12, described reducing transformer 10 connects described filter 12 by rectifier 11, described filter 12 is connected with the coil 71 of described relay 7, the a pair of haptic element 14 of described button 13 is serially connected between filter 12 and the coil 71 of relay 7, and the normally opened contact 72 of described relay 7 is connected with described connector lug 9.
The described mains switch based on relay of the present embodiment, its beneficial effect is: reducing transformer 10 connects 220V civil power, connector lug is serially connected in the current supply circuit of power consumption equipment, 220V civil power is through step-down, what after rectification and filtering, form is direct current, the a pair of haptic element 14 of button 13 is serially connected between filter 12 and the coil 71 of relay 7, during use, press the button 13, coil 71 obtains electric by normally opened contact 72 adhesives, normally opened contact 72 is with regard to conducting like this, because normally opened contact 72 is connected with connector lug 9, like this between connector lug 9 also with regard to conducting, thereby realize switching function, because button 13 is serially connected in the DC loop of a low pressure, so fail safe is better, on the other hand, because charging equipment relay 7 and circuit board 8 are located in a circuit chamber 6, separate with outside, therefore can further improve fail safe.
Embodiment 2:
As shown in Figure 3, the described mains switch based on relay of the present embodiment, as different from Example 1: described upper incoming line mouth 4 is provided with protecting pipe 15; Protecting pipe 15 can play a protective role to the electric wire passing.
Embodiment 3:
As shown in Figure 4, the described mains switch based on relay of the present embodiment, as different from Example 2: described cover 2 is provided with air vent hole 16, and air vent hole 16 can play radiating effect, and then the useful life of prolongation mains switch.
Embodiment 4:
As shown in Figure 5, the described mains switch based on relay of the present embodiment, as different from Example 3: between described circuit chamber 6 and cover 2, be provided with cystosepiment 17; Cystosepiment 17 is easy to the threading that punches on the one hand, can play partition effect on the other hand, improves fail safe, simultaneously lightweight easy operating.
In above-described embodiment, box body 1 and cover 2 can be made circular or square.
Specific embodiment described herein is only to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute (as lid 18 is selected other materials) described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. the mains switch based on relay, comprise box body (1) and cover (2), described box body (1) is connected by screw (3) with cover (2), on box body (1), be provided with upper incoming line mouth (4) and lower incoming line (5), on cover (2), be provided with button (13), button (13) back side is provided with a pair of haptic element (14), it is characterized in that being provided with in described box body (1) a circuit chamber (6), in described circuit chamber (6), be provided with relay (7) and circuit board (8), on circuit chamber (6), be provided with connector lug (9); Described relay (7) comprises coil (71) and a pair of normally opened contact (72); Described circuit board (8) is provided with reducing transformer (10), rectifier (11) and filter (12), described reducing transformer (10) connects described filter (12) by rectifier (11), described filter (12) is connected with the coil (71) of described relay (7), the a pair of haptic element (14) of described button (13) is serially connected between filter (12) and the coil (71) of relay (7), and the normally opened contact (72) of described relay (7) is connected with described connector lug (9).
2. the mains switch based on relay according to claim 1, is characterized in that described upper incoming line mouth (4) is provided with protecting pipe (15).
3. the mains switch based on relay according to claim 1 and 2, is characterized in that described cover (2) is provided with air vent hole (16).
4. the mains switch based on relay according to claim 3, is characterized in that being provided with cystosepiment (17) between described circuit chamber (6) and cover (2).
5. the mains switch based on relay according to claim 4, is characterized in that described screw (3) is sunk screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728032.4U CN203521233U (en) | 2013-11-08 | 2013-11-08 | Relay-based power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728032.4U CN203521233U (en) | 2013-11-08 | 2013-11-08 | Relay-based power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521233U true CN203521233U (en) | 2014-04-02 |
Family
ID=50380124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320728032.4U Expired - Fee Related CN203521233U (en) | 2013-11-08 | 2013-11-08 | Relay-based power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979144A (en) * | 2014-04-11 | 2015-10-14 | 铜仁市万山区顺宇电气有限公司 | Relay switch |
-
2013
- 2013-11-08 CN CN201320728032.4U patent/CN203521233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979144A (en) * | 2014-04-11 | 2015-10-14 | 铜仁市万山区顺宇电气有限公司 | Relay switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140402 Termination date: 20161108 |