CN202838058U - Temperature-control circuit of coffee machine - Google Patents
Temperature-control circuit of coffee machine Download PDFInfo
- Publication number
- CN202838058U CN202838058U CN 201220413020 CN201220413020U CN202838058U CN 202838058 U CN202838058 U CN 202838058U CN 201220413020 CN201220413020 CN 201220413020 CN 201220413020 U CN201220413020 U CN 201220413020U CN 202838058 U CN202838058 U CN 202838058U
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- China
- Prior art keywords
- circuit
- coffee machine
- temperature
- microprocessor
- control circuit
- 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 temperature-control circuit of a coffee machine, characterized by comprising a coil, a rectification circuit, a filter circuit, a voltage stabilizing circuit and a microprocessor. The coil winds a main line of an electric heating body and is in connection with the rectification circuit, the filter circuit and the voltage stabilizing circuit; the voltage stabilizing circuit is in connection with the microprocessor. The temperature-control circuit of a coffee machine has the characteristics of a simple structure, convenient use, low production costs and a long service life and is more energy saving and environmental friendly.
Description
Technical field
The utility model belongs to the temperature detection field, is specifically related to a kind of coffee machine temperature-control circuit.
Background technology
Year, the first item leak through type coffee machine has been invented by Dutch PHILIPS Co..Today after more than 40 year is in the dining room, the place such as bar, family, by the leak through type coffee machine of the numerous manufacturer production in the world market in occupation of the overwhelming majority.Along with the progress of embedded science and technology and improving constantly of living standards of the people, the household electrical appliances intellectuality was suggested in last century end, had obtained paying attention to and having caused research boom in recent years.Still there are some problems in coffee machine as a kind of consumer household electrical appliances aspect the temperature control.Existing coffee machine uses the contact temperature switch, and the problem of using the contact temperature switch to exist is complex structure, allows easily liquid infiltrate and causes damage.
Summary of the invention
The utility model purpose is: coffee machine temperature-control circuit a kind of simple in structure, easy to use is provided.
The technical solution of the utility model is: a kind of coffee machine temperature-control circuit, it is characterized in that, comprise coil, rectification circuit, filtering circuit, mu balanced circuit and microprocessor, described coil around with the main line of electric heating element on and and rectification circuit, filtering circuit, mu balanced circuit links to each other, and described mu balanced circuit links to each other with microprocessor.
Further, described microprocessor is single-chip microcomputer.
Further, also comprise led display unit, described led display unit links to each other with single-chip microcomputer.
Principle of work: according to electromagnetic induction principle, produce the magnetic field (electric magnetisation) of a circle circle around the straight wire of energising, if the curent change in the wire, the variation in the magnetic field around will causing, we know that changing magnetic field produces electric field, so will produce electric field on every side, if changes of magnetic field is inhomogeneous, the electric field that will change.When the calandria temperature variation, the electric current of the wire at place also can change, and the utility model adopts the variation of coil-induced electric current and is input to microprocessor, and microprocessor is judged the temperature of calandria according to the variation of this electric current and controlled the break-make of calandria.
The utility model has the advantages that: simple in structure, easy to use, production cost is low, long service life, more energy-conserving and environment-protective.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the circuit diagram of a kind of embodiment of the present utility model.
Embodiment
Embodiment: coffee machine temperature-control circuit as shown in Figure 1 comprises coil L, rectification circuit, filtering circuit, mu balanced circuit and microprocessor, coil L around with the main line of electric heating element on and and rectification circuit, filtering circuit, mu balanced circuit links to each other, and mu balanced circuit links to each other with microprocessor.According to electromagnetic induction principle, produce the magnetic field (electric magnetisation) of a circle circle around the straight wire of energising, if the curent change in the wire, the variation in the magnetic field around will causing, we know that changing magnetic field produces electric field, so will produce electric field on every side, if changes of magnetic field is inhomogeneous, the electric field that will change.When the calandria temperature variation, the electric current of the wire at place also can change, and the faradic variation of coil L also is input to microprocessor, and microprocessor is judged the temperature of calandria according to the variation of this electric current and controlled the break-make of calandria.Rectification circuit wherein, filtering circuit, mu balanced circuit all are existing circuit, are used for providing the signal of temperature to microprocessor.Microprocessor in the present embodiment adopts single-chip microcomputer, and the single-chip microcomputer of 51 or 61 series can be realized the utility model.For so that the working condition of user's more intuitive understanding circuit, at single-chip microcomputer external led display unit also, led display unit comprises triode and emitting led, is used to indicate the working condition of circuit.
Above embodiment only is the utility model a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. a coffee machine temperature-control circuit is characterized in that, comprises coil, rectification circuit, filtering circuit, mu balanced circuit and microprocessor, described coil around with the main line of electric heating element on and and rectification circuit, filtering circuit, mu balanced circuit links to each other, and described mu balanced circuit links to each other with microprocessor.
2. coffee machine temperature-control circuit according to claim 1 is characterized in that, described microprocessor is single-chip microcomputer.
3. coffee machine temperature-control circuit according to claim 2 is characterized in that, also comprises led display unit, and described led display unit links to each other with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413020 CN202838058U (en) | 2012-08-20 | 2012-08-20 | Temperature-control circuit of coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413020 CN202838058U (en) | 2012-08-20 | 2012-08-20 | Temperature-control circuit of coffee machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202838058U true CN202838058U (en) | 2013-03-27 |
Family
ID=47949722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220413020 Expired - Fee Related CN202838058U (en) | 2012-08-20 | 2012-08-20 | Temperature-control circuit of coffee machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202838058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999061A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Temperature control circuit for coffee maker |
-
2012
- 2012-08-20 CN CN 201220413020 patent/CN202838058U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999061A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Temperature control circuit for coffee maker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130820 |