CN207397975U - A kind of contact conversion device of automatic transfer switching electric appliance - Google Patents
A kind of contact conversion device of automatic transfer switching electric appliance Download PDFInfo
- Publication number
- CN207397975U CN207397975U CN201721210207.7U CN201721210207U CN207397975U CN 207397975 U CN207397975 U CN 207397975U CN 201721210207 U CN201721210207 U CN 201721210207U CN 207397975 U CN207397975 U CN 207397975U
- Authority
- CN
- China
- Prior art keywords
- cam
- conversion device
- electric appliance
- idle pulley
- shaft
- 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 provides a kind of contact conversion device of automatic transfer switching electric appliance, including cam, it is characterised in that：The cam is connected by connecting rod with dynamic iron core, and dynamic iron core is arranged on the lower section of cam, the cam is equipped with the second shaft that idle pulley is controlled to rotate, and it is rotatablely connected by the one side of the second shaft and idle pulley, the idle pulley opposite side is fixedly connected with one end of first rotating shaft, several moving contacts are cased in the first rotating shaft；The utility model is simple in structure, reduces the production cost of product, while will not generate malfunction during contact conversion, ensure that security, the reliability of product.
Description
Technical field
The utility model is related to a kind of contact conversion device, the contact converting means of especially a kind of automatic transfer switching electric appliance
It puts, belongs to automatic control technology field.
Background technology
Contact conversion device is an important part structures in automatic transfer switching electric appliance, existing contact conversion device
Controlled by two coils, when main coil obtains it is electric when, coil is attracted active iron core and connecting rod is driven to be transformed into moving contact
Common power supply；When spare coil obtains it is electric when, coil is attracted spare dynamic iron core and drives connecting rod that moving contact is transformed into stand-by power supply, from
And reach contact in common conversion between power supply and stand-by power supply.
However there are the following problems for above-mentioned contact conversion device：
1st, in the conversion equipment, due to common power supply and stand-by power supply conversion be by two coil independent controls, this
The production cost of product certainly will be added；
2nd, two coils, two control points add the probability of failure of product；
3rd, this structure is not easy to the repair and maintenance at scene.
The content of the invention
The defects of the purpose of this utility model is for existing switching-on mechanism provides a kind of two positions automatic change-over electricity
The contact conversion device of device simplifies the contact conversion device of two positions automatic transfer switching electric appliance with this.
For realization more than technical purpose, the technical solution adopted in the utility model is：A kind of automatic transfer switching electric appliance
Contact conversion device, including cam, it is characterised in that：The cam is connected by connecting rod with dynamic iron core, and dynamic iron core is arranged on
The lower section of cam, the cam are equipped with the second shaft that idle pulley is controlled to rotate, and pass through the second shaft and idle pulley one
Side is rotatablely connected, and the idle pulley opposite side is fixedly connected with one end of first rotating shaft, and it is dynamic that several are cased in the first rotating shaft
Contact.
Further, the cam is equipped with location hole, and one end of the connecting rod is connected through location hole with cam, another
End is connected with dynamic iron core.
Further, second shaft runs through cam, and is fixed with cam.
Further, the idle pulley is equipped with limit hole, and one end of second shaft is fixed through limit hole with idle pulley
Connection.
From the above, it can be seen that the utility model has technical effect that：
1）The contact conversion device of this automatic transfer switching electric appliance provided by the utility model is controlled by a coil
, so as to reduce the production cost of product, while but also the contact conversion device becomes more safe and reliable；
2）The contact conversion device of the utility model, simple in structure, easy to assembly, easy to repair, failure rate is low, more
It is reliable and stable.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the right view of Fig. 1.
Reference sign：1- cams, 2- connecting rods, 3- dynamic iron cores, 4- idle pulleys, 5- first rotating shafts, 6- moving contacts, 7- /Vs
Hole, 8- location holes, the second shafts of 9-.
Specific embodiment
With reference to specific drawings and examples, the utility model is described in further detail.
With reference to the accompanying drawings shown in 1 and Fig. 2, a kind of contact conversion device of automatic transfer switching electric appliance is special including cam 1
Sign is：The cam 1 is connected by connecting rod 2 with dynamic iron core 3, and specifically, the cam 1 is equipped with location hole 8, the connecting rod
2 one end is connected through location hole 8 with cam 1, and the other end is connected with dynamic iron core 3, and dynamic iron core 3 is arranged on the lower section of cam 1,
The cam 1 is equipped with the second shaft 9 that idle pulley 4 is controlled to rotate, and is rotated by the second shaft 9 and the one side of idle pulley 4
Connection, specifically, the idle pulley 4 are equipped with limit hole 7, and one end of second shaft 9 is fixed through limit hole 7 with idle pulley 4
Connection, second shaft 9 runs through cam 1, and is fixed with cam 1, and the idle pulley 4 is equipped with limit hole 7, second shaft
9 one end is rotatablely connected through limit hole 7 and 4 one side of idle pulley, and one end of 4 opposite side of idle pulley and first rotating shaft 5, which is fixed, to be connected
It connects, several moving contacts 6 is cased in the first rotating shaft 5.
Utility model works principle is that when common power supply is normal, coil obtains electric actuation, and dynamic iron core 3 moves downward, and is moved
Iron core 3 is rotated forward by connecting rod 2 with moving cam 1 so that the second shaft 9 on cam 1 rotates forward, and the second shaft 9 drives
Idle pulley 4 rotates forward, and idle pulley 4 drives first rotating shaft 5 to rotate forward so that moving contact 6 is transformed into common power supply；Work as stand-by power supply
When normal, coil obtains electric actuation, and dynamic iron core 3 moves downward, and dynamic iron core 3 is rotated backward by connecting rod 2 with moving cam 1, on cam 1
The second shaft 9 idle pulley 4 is driven to rotate backward, and then first rotating shaft 5 is driven to rotate backward so that dynamic in first rotating shaft 5 touches
First 6 are transformed into stand-by power supply.Coil is and is powered moment in the meantime, since unicoil works, so as to simplify product structure,
The production cost of product is reduced, while malfunction will not be generated during contact conversion, ensure that security, the reliability of product.
The utility model and embodiments thereof are described above, this describe it is no restricted, it is attached shown in figure
Also it is one of embodiment of the utility model, actual structure is not limited thereto.If the ordinary skill people of this field
Member is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the technical solution
Similar frame mode and embodiment, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of contact conversion device of automatic transfer switching electric appliance, including cam（1）, it is characterised in that：The cam（1）It is logical
Cross connecting rod（2）With dynamic iron core（3）Connection, and dynamic iron core（3）It is arranged on cam（1）Lower section, the cam（1）It is equipped with and is used for
Control idle pulley（4）The second shaft rotated（9）, and pass through the second shaft（9）With idle pulley（4）One side rotation connection, it is described lazy
Wheel（4）Opposite side and first rotating shaft（5）One end be fixedly connected, the first rotating shaft（5）On be cased with several moving contacts（6）.
2. a kind of contact conversion device of automatic transfer switching electric appliance according to claim 1, it is characterised in that：It is described convex
Wheel（1）It is equipped with location hole（8）, the connecting rod（2）One end pass through location hole（8）With cam（1）Connection, the other end and dynamic iron
Core（3）Connection.
3. a kind of contact conversion device of automatic transfer switching electric appliance according to claim 1, it is characterised in that：Described
Two shafts（9）Through cam（1）, and and cam（1）It is fixed.
4. a kind of contact conversion device of automatic transfer switching electric appliance according to claim 1, it is characterised in that：It is described lazy
Wheel（4）It is equipped with limit hole（7）, second shaft（9）One end pass through limit hole（7）With idle pulley（4）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210207.7U CN207397975U (en) | 2017-09-19 | 2017-09-19 | A kind of contact conversion device of automatic transfer switching electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210207.7U CN207397975U (en) | 2017-09-19 | 2017-09-19 | A kind of contact conversion device of automatic transfer switching electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207397975U true CN207397975U (en) | 2018-05-22 |
Family
ID=62403598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210207.7U Expired - Fee Related CN207397975U (en) | 2017-09-19 | 2017-09-19 | A kind of contact conversion device of automatic transfer switching electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207397975U (en) |
-
2017
- 2017-09-19 CN CN201721210207.7U patent/CN207397975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20200919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |