CN206075038U - Electric heater and its heating control circuit - Google Patents
Electric heater and its heating control circuit Download PDFInfo
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- CN206075038U CN206075038U CN201621065538.1U CN201621065538U CN206075038U CN 206075038 U CN206075038 U CN 206075038U CN 201621065538 U CN201621065538 U CN 201621065538U CN 206075038 U CN206075038 U CN 206075038U
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- controlled switch
- electric heater
- contact gate
- heating
- contact
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Abstract
The utility model discloses a kind of electric heater and its heating control circuit, heating control circuit includes：Heat generating components, its one end are connected with the zero line of the alternating current power supply of input；First contact gate-controlled switch, its first end are connected with the other end of heat generating components；Second contact gate-controlled switch, its first end are connected with the second end of the first contact gate-controlled switch, and its second end is connected with the live wire of alternating current power supply；One-way conduction unit, one-way conduction unit is in parallel with the second contact gate-controlled switch only to carry out heating work in the once for every half of alternating current power supply so that heat generating components is controlled when the second contact gate-controlled switch disconnects；Control unit, control unit is connected with the control end of first, second contact gate-controlled switch respectively, control unit is controlled to first, second contact gate-controlled switch, heated in full work(with control electric heater and switched over and the heating of half work(between such that it is able to which accurate, reliable regulation is carried out to the heating power of electric heater.
Description
Technical field
This utility model is related to household electrical appliance technical field, the heating control circuit and of more particularly to a kind of electric heater
Plant electric heater.
Background technology
Heating electric appliances in correlation technique generally realize power adjustments by following two modes：
The first, is adjusted to the heating power for heating electric appliances by the semiconductor switch class device such as controllable silicon.But
That its problem for existing is, on the one hand due to larger by the electric current of device, the temperature of device is easily raised, so need with
Larger radiating element is used cooperatively, complex structure, high cost；On the other hand, semiconductor switch is in conducting and the wink for disconnecting
Between be also easy to produce very big interference, it is unfavorable to the EMC performances of whole machine.
Which two is the heating power for heating electric appliances to be adjusted by contact class switching device.But, what which was present
Problem is to accomplish substantially lossless power adjustable, can only frequently switching on realizing Power Regulation by device itself, so as to meeting
Switching device contact itself is caused easily to aoxidize and aging, the work service life for also resulting in switching device is greatly shortened.
Utility model content
This utility model is intended at least to solve to a certain extent one of technical problem in correlation technique.For this purpose, this reality
It is to propose a kind of heating control circuit of electric heater with a new purpose, the heating power of electric heater can be entered
Row precisely, is reliably adjusted.
Another purpose of the present utility model is to propose a kind of electric heater.
To reach above-mentioned purpose, this utility model first aspect proposes a kind of heating control circuit of electric heater, bag
Include：Heat generating components, one end of the heat generating components are connected with the zero line of the alternating current power supply of input；First contact gate-controlled switch,
The first end of the first contact gate-controlled switch is connected with the other end of the heat generating components；Second contact gate-controlled switch,
The first end of the second contact gate-controlled switch is connected with the second end of the first contact gate-controlled switch, and described second touches
Second end of point type gate-controlled switch is connected with the live wire of the alternating current power supply；One-way conduction unit, the one-way conduction unit with
The second contact gate-controlled switch is in parallel only controlling the heat generating components when the second contact gate-controlled switch disconnects
Heating work is carried out in the once for every half of the alternating current power supply；Control unit, described control unit are touched with described first respectively
The control end of point type gate-controlled switch is connected with the control end of the second contact gate-controlled switch, and described control unit is to described
One contact gate-controlled switch and the second contact gate-controlled switch are controlled and are heated in full work(with controlling the electric heater
Switch between the heating of half work(.
According to the utility model proposes electric heater heating control circuit, heat generating components, the first contact is controllable opens
Close and the second contact gate-controlled switch is sequentially connected in series, one-way conduction unit is in parallel with the second contact gate-controlled switch with tactile second
When point type gate-controlled switch disconnects, control heat generating components only carries out heating work, control unit pair in the once for every half of alternating current power supply
First contact gate-controlled switch and the second contact gate-controlled switch are controlled to control electric heater in the heating of full work(and half work(
Switch between heating.Thus, heating control circuit of the present utility model can carry out between half work(and full work(precisely, can
By switching, gate-controlled switch need not be controlled and continually turned on and disconnected, reduce the oxidation of gate-controlled switch itself contact and aging speed
Degree, improves the service life of gate-controlled switch, lifts Consumer's Experience, improving product competitiveness.
Specifically, the first contact gate-controlled switch and the second contact gate-controlled switch are open type hilted broadsword list
Throw relay.
Specifically, the heat generating components is heat-generating pipe.
Specifically, the one-way conduction unit is diode, and the anode of the diode is controllable with second contact
The first end of switch is connected, and the negative electrode of the diode is connected with the second end of the second contact gate-controlled switch.
Specifically, wherein, when the first contact gate-controlled switch and the second contact gate-controlled switch are closed,
The electric heater carries out full work(heating；When the first contact gate-controlled switch is closed and the second contact gate-controlled switch
During disconnection, the electric heater carries out half work(heating.
Specifically, the electric heater is soy bean milk making machine.
To reach above-mentioned purpose, this utility model second aspect proposes a kind of electric heater, including described electrical heating
The heating control circuit of device.
According to the utility model proposes electric heater, can be real by the heating control circuit of above-mentioned electric heater
Heating in full work(for existing electric heater carries out accurate, reliable switching and the heating of half work(between, and need not control gate-controlled switch frequency
Turn on numerously and disconnect, reduce oxidation and the aging speed of gate-controlled switch itself contact, improve the use longevity of gate-controlled switch
Life, lifts Consumer's Experience, improving product competitiveness.
Description of the drawings
Fig. 1 is the block diagram of the heating control circuit of the electric heater according to this utility model embodiment；And
Fig. 2 is the circuit theory diagrams of the heating control circuit of the electric heater according to this utility model embodiment.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that to this utility model
Restriction.
Below in conjunction with the accompanying drawings come describe this utility model embodiment proposition electric heater heating control circuit and tool
There is its electric heater.
Fig. 1 is the block diagram of the heating control circuit of the electric heater according to this utility model embodiment.Such as Fig. 1-2
Shown, the heating control circuit of the electric heater includes：Heat generating components 100, the first contact gate-controlled switch 200, the second contact
Formula gate-controlled switch 300, one-way conduction unit 400 and control unit 500.
Wherein, one end of heat generating components 100 is connected with the zero line N of the alternating current power supply of input, the first contact gate-controlled switch
200 first end S1 is connected with the other end of heat generating components 100, first end S3 and first of the second contact gate-controlled switch 300
Second end S2 of contact gate-controlled switch 200 is connected, the second end S4 of the second contact gate-controlled switch 300 and the fire of alternating current power supply
Line L is connected.One-way conduction unit 400 is in parallel with disconnected in the second contact gate-controlled switch 300 with the second contact gate-controlled switch 300
Heat generating components 100 is controlled when opening only carries out heating work in the once for every half of alternating current power supply.Control unit 500 is respectively with first
The control end of contact gate-controlled switch 200 is connected with the control end of the second contact gate-controlled switch 300, control unit 500 pairs
One contact gate-controlled switch 200 and the second contact gate-controlled switch 300 be controlled with control electric heater full work(heating with
Switch between the heating of half work(.
That is, control unit 500 may include the first control port 10 and the second control port 20, wherein, control is single
First control port 10 of unit 500 is connected with the control end of the first contact gate-controlled switch 200, and control unit 500 can pass through the
One control port 10 controls the first contact gate-controlled switch 200 and is turned on or off；Second control port 20 of control unit 500 with
The control end of the second contact gate-controlled switch 300 is connected, and control unit 500 can control the second contact by the second control port 20
Formula gate-controlled switch 300 is turned on or off.
Specifically, control unit 500 can be entered by controlling the control heat generating components 100 of the first contact gate-controlled switch 200
Row heating stops heating；And it is in alternating current power supply that can control heat generating components 100 by the second contact gate-controlled switch 300
Half period is carried out heating and is still heated in the whole cycle of alternating current power supply, so as to the heating power for controlling electric heater exists
Switching between full work(heating and the heating of half work(.Wherein, when the first contact gate-controlled switch 200 and the second contact gate-controlled switch
300 when being both turned on, and electric heater carries out full work(heating.When the first contact gate-controlled switch 200 is turned on and the second contact is controllable
When switch 300 disconnects, electric heater carries out half work(heating.Specifically, after electricity on electric heater, when control unit 500 is controlled
When making the disconnection of the first contact gate-controlled switch 200, the heating circuit open circuit of electric heater, heat generating components 100 stop heating.
When control the first contact gate-controlled switch 200 of control unit 500 is turned on, the heating circuit conducting of electric heater,
Heat generating components 100 is heated, now, so that alternating current power supply is for sine wave input as an example, if the control of control unit 500 second is touched
Point type gate-controlled switch 300 is turned on, and is acted directly on heat generating components 100 equivalent to whole alternating current power supply, then heat generating components 100 exists
The whole cycle of alternating current power supply is heated, i.e., electric heater carries out full work(heating, and now full work(heating is rated power and adds
Heat；If control unit 500 controls the second contact gate-controlled switch 300 disconnected, due to the one-way conduction of one-way conduction unit 400
Property, only in the positive half-wave or negative half-wave of sine wave input, the heating circuit of electric heater is in the conduction state, equivalent to alternating current
The half in source is acted on heat generating components 100, then heat generating components 100 is heated in the half period of alternating current power supply, i.e., electricity adds
Hot device carries out half work(heating.Wherein, half work(heating power is the half of full work(heating power, but not being close in meaning or about
It is equal to.
Thus, the heating control circuit of the electric heater of this utility model embodiment passes through control by control unit 500
The conducting of the first contact gate-controlled switch 200 and the second contact gate-controlled switch 300 and disconnection, are existed with controlling heat generating components 100
Switch between full work(heating and the heating of half work(such that it is able to according to work requirements realize the heating power of electric heater
Accurate switching between full work(heating and the heating of half work(.
According to one embodiment of the present utility model, the first contact gate-controlled switch 200 and the second contact gate-controlled switch
300 are open type single-pole single-throw(SPST relay.
According to one embodiment of the present utility model, as shown in Fig. 2 heat generating components 100 is heat-generating pipe.
According to one embodiment of the present utility model, as shown in Fig. 2 one-way conduction unit 400 is diode D1, diode
The anode of D1 is connected with first end S3 of the second contact gate-controlled switch 300, and the negative electrode of diode D1 is controllable with the second contact
Second end S4 of switch 300 is connected, wherein, the model of diode D1 can be IN4007.
Specifically, when the second contact gate-controlled switch 300 disconnects, based on the unidirectional general character of diode D1, handing over
The positive half-wave of stream power supply sine wave input, diode D1 disconnect, and the heating circuit of electric heater is off, and in sine
The negative half-wave of ripple input, diode D1 conductings, the heating circuit of electric heater are in the conduction state, thus equivalent to alternating current power supply
Half act on heat generating components 100, heat generating components 100 is heated in the half period of alternating current power supply, i.e. electric heater
Carry out half work(heating.
According to one embodiment of the present utility model, electric heater is soy bean milk making machine.
The heating control circuit of the electric heater proposed according to this utility model embodiment, heat generating components, the first contact
Gate-controlled switch and the second contact gate-controlled switch are sequentially connected in series, one-way conduction unit it is in parallel with the second contact gate-controlled switch with
When second contact gate-controlled switch disconnects, control heat generating components only carries out heating work in the once for every half of alternating current power supply, controls
Unit is controlled to the first contact gate-controlled switch and the second contact gate-controlled switch and is heated in full work(with controlling electric heater
Switch between the heating of half work(.Thus, gate-controlled switch need not be controlled continually to turn on and disconnect, gate-controlled switch is reduced certainly
The oxidation of body contact and aging speed, improve the service life of gate-controlled switch, lift Consumer's Experience, improving product competitiveness.
In addition, on the other hand this utility model embodiment proposes a kind of electric heater, which includes above-mentioned electric heater
Heating control circuit.
According to the electric heater that this utility model embodiment is proposed, the computer heating control electricity of above-mentioned electric heater can be passed through
Road, realizes that heating in full work(for electric heater carries out accurate, reliable switching and the heating of half work(between, and need not control controllable opening
Close continually conducting and disconnect, reduce oxidation and the aging speed of gate-controlled switch itself contact, improve making for gate-controlled switch
With the life-span, Consumer's Experience, improving product competitiveness are lifted.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " is based on orientation shown in the drawings
Or position relationship, be for only for ease of description this utility model and simplify description, rather than indicate or imply indication device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, unless otherwise clearly restriction.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State.And, the specific features of description, structure, material or feature can be with
Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered
Row is combined and is combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, be changed, being replaced and modification.
Claims (7)
1. a kind of heating control circuit of electric heater, it is characterised in that include：
Heat generating components, one end of the heat generating components are connected with the zero line of the alternating current power supply of input；
First contact gate-controlled switch, the first end of the first contact gate-controlled switch and the other end phase of the heat generating components
Even；
Second contact gate-controlled switch, the first end of the second contact gate-controlled switch and the first contact gate-controlled switch
The second end be connected, the second end of the second contact gate-controlled switch is connected with the live wire of the alternating current power supply；
One-way conduction unit, the one-way conduction unit are in parallel with the second contact gate-controlled switch with second contact
Formula gate-controlled switch controls the heat generating components when disconnecting and only carries out heating work in the once for every half of the alternating current power supply；
Control unit, described control unit control end and second contact respectively with the first contact gate-controlled switch
The control end of gate-controlled switch is connected, and described control unit is controllable to the first contact gate-controlled switch and second contact
Switch be controlled with control the electric heater full work(heat and half work(heat between switch over.
2. the heating control circuit of electric heater according to claim 1, it is characterised in that first contact is controllable
Switch and the second contact gate-controlled switch are open type single-pole single-throw(SPST relay.
3. the heating control circuit of electric heater according to claim 1, it is characterised in that the heat generating components is heating
Pipe.
4. the heating control circuit of electric heater according to claim 1, it is characterised in that the one-way conduction unit is
Diode, the anode of the diode are connected with the first end of the second contact gate-controlled switch, the negative electrode of the diode
It is connected with the second end of the second contact gate-controlled switch.
5. the heating control circuit of the electric heater according to any one of claim 1-4, it is characterised in that wherein, when
When the first contact gate-controlled switch and the second contact gate-controlled switch are closed, the electric heater carries out full work(and adds
Heat；
When the first contact gate-controlled switch is closed and the second contact gate-controlled switch disconnects, the electric heater enters
Half work(of row is heated.
6. the heating control circuit of electric heater according to claim 1, it is characterised in that the electric heater is bean milk
Machine.
7. a kind of electric heater, it is characterised in that include the heating of the electric heater according to any one of claim 1-6
Control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621065538.1U CN206075038U (en) | 2016-09-20 | 2016-09-20 | Electric heater and its heating control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621065538.1U CN206075038U (en) | 2016-09-20 | 2016-09-20 | Electric heater and its heating control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075038U true CN206075038U (en) | 2017-04-05 |
Family
ID=58439554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621065538.1U Active CN206075038U (en) | 2016-09-20 | 2016-09-20 | Electric heater and its heating control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075038U (en) |
-
2016
- 2016-09-20 CN CN201621065538.1U patent/CN206075038U/en active Active
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| GR01 | Patent grant |