CN202889313U - Non-contact wave-band switch and electromagnetic stove - Google Patents
Non-contact wave-band switch and electromagnetic stove Download PDFInfo
- Publication number
- CN202889313U CN202889313U CN 201220526929 CN201220526929U CN202889313U CN 202889313 U CN202889313 U CN 202889313U CN 201220526929 CN201220526929 CN 201220526929 CN 201220526929 U CN201220526929 U CN 201220526929U CN 202889313 U CN202889313 U CN 202889313U
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- China
- Prior art keywords
- circuit board
- switch
- band switch
- contactless
- utility
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- 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 - Lifetime
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model discloses a non-contact wave-band switch. The non-contact wave-band switch comprises a circuit board and a rotating assembly. A strong magnet is arranged on a surface of the rotating assembly opposite to the circuit board. The circuit board is equipped with a plurality of Hall switches at positions corresponding to the rotation track of the strong magnet. A gap is formed between the strong magnet and the circuit board. According to the utility model, the on/off state of the Hall switches is controlled by the magnetic field that is generated by the strong magnet, thereby preventing deformation and even fracture or finally poor contact and even failure of non-contact wave-band switches, which may be caused due to interaction between static and movable contact sheets in the prior art. The utility model further discloses an electromagnetic stove.
Description
Technical field
The utility model relates to the electromagnetic switch technical field, relates in particular to a kind of contactless band switch and electromagnetic stove.
Background technology
Band switch is the functional unit of extensive use in all kinds of numerical controlled machineries, smart machine.As shown in Figure 1, traditional mechanical type band switch comprises switch holder 1, rotating assembly 2, movable contact spring 3 and static contact 4.The operation principle of this mechanical type band switch is: rotating shaft assembly 2, rotating assembly 2 drive movable contact springs 4 and rotate, when movable contact spring 3 turn to be in contact with one another with static contact 4 after conducting, thereby change the resistance value size, realize automatically controlled purpose.
Although this mechanical type band switch is simple in structure, production cost the, movable contact spring 3 and static contact 4 in the mechanical type band switch are in contact with one another for a long time, the situation of static contact 4 distortion or movable contact spring 3 fractures can occur, cause the loose contact of mechanical type band switch; In addition, the mechanical type band switch exposes unprotect in air, and movable contact spring 3 and static contact 4 are easily oxidized, also easily causes loose contact.
The utility model content
Main purpose of the present utility model is for providing a kind of simple in structure, can avoid dynamic and static contact to be in contact with one another for a long time and produces distortion or fracture, thereby cause band switch loose contact even malfunctioning contactless band switch and electromagnetic stove.
The utility model provides a kind of contactless band switch, comprise circuit board and rotating assembly, described runner assembly is provided with a strong magnets with respect to the surface of described circuit board, the position of the corresponding described strong magnets rotary motion trace of described circuit board is provided with some Hall switch, has the gap between described strong magnets and the circuit board.
Preferably, described circuit board also comprises be used to the epoxy glue layer that encapsulates described Hall switch.
Preferably, described Hall switch circular arc or even circumferential along described strong magnets rotary motion trace on circuit board arranged.
Preferably, the radian between the adjacent two described Hall switch is π/6.
Preferably, the resistance value of the corresponding different sizes of each described Hall switch.
Preferably, the corresponding resistance value of some described Hall switch increases gradually along clockwise direction or reduces.
The utility model further also provides a kind of electromagnetic stove, comprise contactless band switch, this contactless band switch comprises circuit board and rotating assembly, described runner assembly is provided with a strong magnets with respect to the surface of described circuit board, the position of the corresponding described strong magnets rotary motion trace of described circuit board is provided with some Hall switch, has the gap between described strong magnets and the circuit board.
The On/Off of the magnetic field control Hall switch that the utility model produces by strong magnets has avoided quiet in the prior art, movable contact spring interacts and the distortion even the fracture that cause finally cause band switch loose contact even malfunctioning.
Description of drawings
Fig. 1 is the structural representation of mechanical type band switch in the prior art;
Fig. 2 is the blast structural representation of contactless band switch one angle of the utility model;
Fig. 3 is the blast structural representation of contactless another angle of band switch of the utility model;
Fig. 4 is the structural representation of runner assembly in the contactless band switch of the utility model;
Fig. 5 is the structural representation of circuit board in the contactless band switch of the utility model.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides a kind of contactless band switch.
With reference to Fig. 2 to Fig. 5, Fig. 2 is the blast structural representation of contactless band switch one angle of the utility model; Fig. 3 is the blast structural representation of contactless another angle of band switch of the utility model; Fig. 4 is the structural representation of runner assembly in the contactless band switch of the utility model; Fig. 5 is the structural representation of circuit board in the contactless band switch of the utility model.
In embodiment of the present utility model, this contactless band switch comprises bonnet 30, switch holder 40, circuit board 20, runner assembly 10, plain washer 50, banking stop 60 and some screws 70 and nut 80 etc.Wherein, this runner assembly 10 is oppositely arranged with circuit board 20, be provided with a strong magnets 11 at runner assembly 10 with respect to the surface of circuit board 20, this strong magnets 11 can be rotated with runner assembly 10, and form the track of a circular arc or circumferential, the projected position of this track on circuit board 20 is provided with some Hall switch 21, each Hall switch 21 corresponding resistance value.This Hall switch 21 is along the projective distribution of strong magnets 11 movement locus.Has the gap between strong magnets 11 and the circuit board 20, be strong magnets 11 with circuit board 20 on the Hall switch 21 that arranges do not contact, in the time of directly over strong magnets 11 turns to Hall switch 21, this Hall switch 21 is opened under the effect in strong magnets 11 magnetic fields, realizes automatically controlled.
The On/Off of the magnetic field control Hall switch 21 that the utility model produces by strong magnets 11 has avoided quiet in the prior art, movable contact spring interacts and the distortion even the fracture that cause finally cause contactless band switch loose contact even malfunctioning.
Based on above-described embodiment, this circuit board 20 also comprises the epoxy glue layer (not shown), this epoxy glue layer is encapsulated in Hall switch 21 on the circuit board 20, make Hall switch 21 and external environment isolation, avoid Hall switch 21 to expose for a long time in air and oxidized or dirty, caused this contactless band switch loose contact even malfunctioning.
In the above-described embodiments, Hall switch 21 projected position along the movement locus of strong magnets 11 circular arcs or circumferential on circuit board 20 is evenly arranged, with the Hall switch 21 that guarantees that when runner assembly 10 rotates strong magnets 11 can uniform inswept circuit board 20 be arranged, so that contactless band switch can be realized is evenly automatically controlled.
In the above-described embodiments, radian between adjacent two Hall switch 21 is preferably π/6, be that runner assembly 10 whenever turns over 30 ° and can make strong magnets 11 streak a Hall switch 21, both guaranteed the accuracy that contactless band switch is automatically controlled, again so that contactless band switch rotational angle when regulation stall is not too large.
In the above-described embodiments, the clockwise direction that distributes along Hall switch 21 of Hall switch 21 corresponding resistance values increases gradually or reduces.To realize that contactless band switch can be gradual automatically controlled.
The utility model further also provides a kind of electromagnetic stove, comprises contactless band switch, and the concrete structure of this contactless band switch does not repeat them here with reference to above-described embodiment.Natural, because this electromagnetic stove comprises the contactless band switch in above-described embodiment, so this electromagnetic stove of all beneficial effects that this contactless band switch has all should have.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (7)
1. contactless band switch, comprise circuit board and rotating assembly, it is characterized in that: described runner assembly is provided with a strong magnets with respect to the surface of described circuit board, the position of the corresponding described strong magnets rotary motion trace of described circuit board is provided with some Hall switch, has the gap between described strong magnets and the circuit board.
2. contactless band switch as claimed in claim 1, it is characterized in that: described circuit board also comprises be used to the epoxy glue layer that encapsulates described Hall switch.
3. contactless band switch as claimed in claim 2, it is characterized in that: described Hall switch circular arc or even circumferential along described strong magnets rotary motion trace on circuit board arranged.
4. contactless band switch as claimed in claim 3, it is characterized in that: the radian between the adjacent two described Hall switch is π/6.
5. such as each described contactless band switch in the claim 1 to 4, it is characterized in that: the resistance value of the corresponding different sizes of each described Hall switch.
6. contactless band switch as claimed in claim 5, it is characterized in that: the corresponding resistance value of some described Hall switch increases gradually along clockwise direction or reduces.
7. an electromagnetic stove is characterized in that: comprise such as the described contactless band switch of any one in the claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526929 CN202889313U (en) | 2012-10-15 | 2012-10-15 | Non-contact wave-band switch and electromagnetic stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526929 CN202889313U (en) | 2012-10-15 | 2012-10-15 | Non-contact wave-band switch and electromagnetic stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889313U true CN202889313U (en) | 2013-04-17 |
Family
ID=48080699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526929 Expired - Lifetime CN202889313U (en) | 2012-10-15 | 2012-10-15 | Non-contact wave-band switch and electromagnetic stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335342A (en) * | 2013-06-27 | 2013-10-02 | 东莞市精诚电能设备有限公司 | Contactless ignition firepower regulator of induction cooker |
| CN106959634A (en) * | 2017-03-13 | 2017-07-18 | 美的智慧家居科技有限公司 | Non-contact switch and its control method |
-
2012
- 2012-10-15 CN CN 201220526929 patent/CN202889313U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335342A (en) * | 2013-06-27 | 2013-10-02 | 东莞市精诚电能设备有限公司 | Contactless ignition firepower regulator of induction cooker |
| CN103335342B (en) * | 2013-06-27 | 2016-03-23 | 东莞市精诚电能设备有限公司 | Electromagnetic oven is contactless fire regulation |
| CN106959634A (en) * | 2017-03-13 | 2017-07-18 | 美的智慧家居科技有限公司 | Non-contact switch and its control method |
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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 |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |