CN203422450U - Detection device for relay - Google Patents
Detection device for relay Download PDFInfo
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- CN203422450U CN203422450U CN201320400669.0U CN201320400669U CN203422450U CN 203422450 U CN203422450 U CN 203422450U CN 201320400669 U CN201320400669 U CN 201320400669U CN 203422450 U CN203422450 U CN 203422450U
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- relay
- coil
- detection device
- master switch
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Abstract
The utility model discloses a detection device for a relay. The detection device includes a main switch, which is connected with a power supply after being connected with the relay serially; a normally-open contact point and a first coil, wherein the normally-open contact point and the first coil are parallelly connected with the main switch and the relay after being connected with each other serially; and a lamp, which is in parallel connection with the first coil. The detection device for the relay has advantages of being simple in structure; being capable of determining whether a problem exists in the relay or not by connecting the relay and the lamp in a circuit at the same time, and by control the main switch and watching whether the light is turned on or not; and being visual, simple and fast.
Description
Technical field
The utility model relates to relay field, particularly a kind of electric relay detection device.
Background technology
Relay (Relay), also claim electric post, it is a kind of electronic control device, it has control system (claim not only input circuit) and by control system (but also claiming output loop), conventionally be applied in automatic control circuit, it is actually a kind of " automatic switch " that removes to control larger electric current with less electric current.Therefore play the effects such as automatic adjusting, safeguard protection, change-over circuit in circuit.Relay, before the packing of dispatching from the factory, need to detect, and guarantees that relay can work in actual applications.Current relay test mechanism is all comparatively complicated, and operation inconvenience and sense cycle are long.
Therefore, how to provide that a kind of can to detect simply, fast the electric relay detection device whether relay is good be those skilled in the art's technical matterss urgently to be resolved hurrily.
Utility model content
The utility model provides a kind of electric relay detection device, detects the problem of complicated operation, sense cycle length to overcome prior art repeat circuit.
For solving the problems of the technologies described above, the utility model provides a kind of electric relay detection device, comprising: master switch, is connected to power supply after connecting with relay; Normally opened contact and the first coil, in parallel with master switch and relay after described normally opened contact and the series connection of the first coil; And lamp, with described the first coils from parallel connection of coils.
Further, also comprise the second coil and normally closed contact, described the second coil is in parallel with master switch and relay after connecting with normally closed contact.
Further, described relay is connected with master switch by a relay mounting seat.
Further, described power acquisition 24V direct supply.
Compared with prior art, electric relay detection device of the present utility model, comprising: master switch, is connected to power supply after connecting with relay; Normally opened contact and the first coil, in parallel with master switch and relay after described normally opened contact and the series connection of the first coil; And lamp, with described the first coils from parallel connection of coils.Of the present utility model simple in structure, by by relay and lamp while place in circuit, whether bright by controlling master switch observation lamp, judge whether relay has problems, directly perceived, simple, quick.
Accompanying drawing explanation
Fig. 1～2 are respectively the circuit theory diagrams of the utility model one embodiment repeat circuit pick-up unit.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.It should be noted that, the utility model accompanying drawing all adopts the form of simplification and all uses non-ratio accurately, only in order to convenient, the object of aid illustration the utility model embodiment lucidly.
Please refer to Fig. 1 and Fig. 2, the utility model provides a kind of electric relay detection device, comprising:
Master switch S, is connected to power supply after connecting with relay K M, and preferably, described relay K M connects with master switch S by a relay mounting seat (not shown), can quick-replaceable relay K M, reach the object of saving time, improve detection speed;
Normally opened contact KM-1 and the first coil KM1, in parallel with master switch S and relay K M after described normally opened contact KM-1 and the first coil KM1 series connection;
And lamp L, in parallel with described the first coil KM1.
As preferably, described electric relay detection device also comprises: the second coil KM2 and normally closed contact KM-2, and in parallel with master switch S and relay K M after described the second coil KM2 connects with normally closed contact KM-2.
Continue referring to Fig. 1 and Fig. 2, the course of work of electric relay detection device of the present utility model is:
Relay K M is inserted in relay mounting seat, opens master switch S;
If relay K M is normal, as shown in Figure 2, normally opened contact KM-1 is closed, and normally closed contact KM-2 disconnects, the first coil KM1 and lamp L place circuit turn-on, and lamp L is bright;
If relay K M is bad, relay K M place not conducting of circuit, corresponding normally opened contact KM-1 and normally closed contact KM-2 still maintain the original state, now, the first coil KM1 and the not conducting of circuit of lamp L place, lamp L does not work, and has electric current to pass through in the second coil KM2 and normally closed contact KM-2.
Further, described power acquisition 24V direct supply, detects the current switching situation of relay K M thus, thereby distinguishes that whether relay K M is normal, reaches fast detecting, the object of saving servicing time.
In sum, electric relay detection device of the present utility model, comprising: master switch S, is connected to power supply after connecting with relay K M; Normally opened contact KM-1 and the first coil KM1, in parallel with master switch S and relay K M after described normally opened contact KM-1 and the first coil KM1 series connection; And lamp L, in parallel with described the first coil KM1.Of the present utility model simple in structure, by by relay K M and lamp L while place in circuit, whether bright by controlling master switch S observation lamp L, judge whether relay K M has problems, directly perceived, simple, quick.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these change and modification.
Claims (4)
1. an electric relay detection device, is characterized in that, comprising:
Master switch, is connected to power supply after connecting with relay;
Normally opened contact and the first coil, in parallel with master switch and relay after described normally opened contact and the series connection of the first coil;
And
Lamp, with described the first coils from parallel connection of coils.
2. electric relay detection device as claimed in claim 1, is characterized in that, also comprises the second coil and normally closed contact, and described the second coil is in parallel with master switch and relay after connecting with normally closed contact.
3. electric relay detection device as claimed in claim 1, is characterized in that, described relay is connected with master switch by a relay mounting seat.
4. electric relay detection device as claimed in claim 1, is characterized in that, described power acquisition 24V direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400669.0U CN203422450U (en) | 2013-07-05 | 2013-07-05 | Detection device for relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400669.0U CN203422450U (en) | 2013-07-05 | 2013-07-05 | Detection device for relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422450U true CN203422450U (en) | 2014-02-05 |
Family
ID=50021545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320400669.0U Expired - Lifetime CN203422450U (en) | 2013-07-05 | 2013-07-05 | Detection device for relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107640671A (en) * | 2017-08-23 | 2018-01-30 | 上海新时达电气股份有限公司 | Door lock short-circuit detecting device |
-
2013
- 2013-07-05 CN CN201320400669.0U patent/CN203422450U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107640671A (en) * | 2017-08-23 | 2018-01-30 | 上海新时达电气股份有限公司 | Door lock short-circuit detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |