CN209629487U - Heat-generating pipe heating equipment and coffee machine - Google Patents
Heat-generating pipe heating equipment and coffee machine Download PDFInfo
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- CN209629487U CN209629487U CN201821432794.9U CN201821432794U CN209629487U CN 209629487 U CN209629487 U CN 209629487U CN 201821432794 U CN201821432794 U CN 201821432794U CN 209629487 U CN209629487 U CN 209629487U
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Abstract
The utility model provides a kind of heat-generating pipe heating equipment and coffee machine, belongs to heat-generating pipe heating art.The heat-generating pipe heating equipment includes: fever tube drive circuit, heat-generating pipe and temperature control device including series connection, heat-generating pipe is for heating liquid therein, circuit where temperature control device disconnects temperature control device in the case where the temperature of heat-generating pipe is higher than predetermined temperature；Detection circuit, it is connected to fever tube drive circuit, for detecting the electric signal in temperature control device place circuit and exporting corresponding level signal, in the case where heat-generating pipe heating equipment is in running order, level signal is high level, and in the case where heat-generating pipe heating equipment is in off working state, level signal is low level.Circuit switches on and off where the utility model controls it by temperature control device come the temperature according to heat-generating pipe, and it is whether in running order to judge heating tube using the electric signal in circuit where detection circuit detection temperature control device, to judge whether heating tube works completion.
Description
Technical field
The utility model relates to heat-generating pipe heating arts, more particularly to heat-generating pipe heating equipment and coffee machine.
Background technique
Heat-generating pipe heating equipment is the equipment heated using heat-generating pipe to the liquid in heat-generating pipe, is much being led at present
The application in domain is all very extensive, and still, heat-generating pipe temperature is excessively high to be will cause equipment fault or make to the personal safety of user
At certain threat.
Coffee machine is a kind of machine that coffee is typically prepared using heat-generating pipe heating equipment, and coffee machine can be realized because of it
Milling, dress powder, the automatic control of brewing coffees overall process such as brews, removes residue at press-powder, thus likes the people to drink coffee happiness
It is time saving and energy saving vigorously with coffee machine come brewing coffee.It but is at present much when utilizing to the process identification of coffee machine brewing coffee
Between to determine whether brew complete, it is very not scientific, or not can identify whether complete brew, this brings very to user
More inconvenience.
Utility model content
The purpose of the utility model is to provide heat-generating pipe heating equipment and coffee machines, add for solving safely and reliably judgement
The problem of working condition of heat pipe.
To achieve the goals above, the utility model provides a kind of heat-generating pipe heating equipment, and the heat-generating pipe adds
Hot equipment includes: fever tube drive circuit, heat-generating pipe and temperature control device including series connection, and the heat-generating pipe is used for described
Liquid in heat-generating pipe is heated, and the temperature control device is disconnected in the case where the temperature of the heat-generating pipe is higher than predetermined temperature
Circuit where the temperature control device；And detection circuit, it is connected to the fever tube drive circuit, for detecting the temperature control dress
The electric signal in circuit where setting simultaneously exports corresponding level signal, in the situation that the heat-generating pipe heating equipment is in running order
Under the level signal be high level, the level signal in the case where the heat-generating pipe heating equipment is in off working state
For low level.
Preferably, the detection circuit is connected between the heat-generating pipe and the temperature control device, to detect the fever
Pipe with the electric signal between the temperature control device and export corresponding level signal.
Preferably, the temperature control device is Self-resetting temperature switch, is higher than the predetermined temperature in the temperature of the heat-generating pipe
There is no liquid in the case where degree in the heat-generating pipe, the Self-resetting temperature switch disconnects and the level signal is low level,
In the case where the temperature of the heat-generating pipe is not higher than the predetermined temperature, the heat-generating pipe is to the liquid in the heat-generating pipe
Body is heated, and the Self-resetting temperature switch is closed and the level signal is high level.
Preferably, the predetermined temperature is 130 DEG C~200 DEG C.
Preferably, the heat-generating pipe heating equipment further include: master control borad is connected to the detection circuit, for receiving
It states level signal and exports corresponding control signal.
Preferably, the heat-generating pipe heating equipment further include: alarm device is connected to the master control borad, for according to
Control signal is alarmed；Wherein, the master control borad the level signal received be low level situation under, output
The control signal is to complete signal so that the alarm device is alarmed.
Preferably, the heat-generating pipe heating equipment further include: power module is connected to the fever tube drive circuit, uses
In providing power supply for the fever tube drive circuit.
Preferably, the power module is DC low voltage power supply.
Preferably, the detection circuit includes: diode, is connected between the heat-generating pipe and the temperature control device, is used
It is rectified in the electric signal；Resistor assembly is connected to the diode；And triode, it is connected to institute
Resistor assembly is stated, the collector of the triode is connected to the master control borad；Wherein, the detection circuit passes through the triode
The collector export the level signal.
Correspondingly, the utility model additionally provides a kind of coffee machine, including heat-generating pipe heating equipment described above.
Through the above technical solutions, the utility model returns where controlling it by temperature control device come the temperature according to heat-generating pipe
Road switches on and off, and judges whether heating tube is in using the electric signal in circuit where detection circuit detection temperature control device
Working condition, to judge whether heating tube works completion.
The other feature and advantage of the utility model embodiment will give in the following detailed description section specifically
It is bright.
Detailed description of the invention
Attached drawing is to further understand for providing to the utility model embodiment, and constitute part of specification,
It is used to explain the utility model embodiment together with following specific embodiment, but does not constitute to the utility model embodiment
Limitation.In the accompanying drawings:
Fig. 1 is the block diagram of heat-generating pipe heating equipment provided by the utility model；
Fig. 2 is the circuit diagram of detection circuit provided by the utility model；
Fig. 3 is the circuit diagram of fever tube drive circuit provided by the utility model；And
Fig. 4 is the circuit diagram of power module provided by the utility model.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the utility model embodiment.It should be understood that
It is that specific embodiment described herein is merely to illustrate and explains the utility model embodiment is not limited to this reality
Use new embodiment.
Fig. 1 is the block diagram of heat-generating pipe heating equipment provided by the utility model, as shown in Figure 1, the heat-generating pipe heating equipment
Including fever tube drive circuit and detection circuit, wherein fever tube drive circuit, heat-generating pipe and temperature control dress including series connection
It sets, for heat-generating pipe for heating to the liquid in heat-generating pipe, temperature control device is higher than the feelings of predetermined temperature in the temperature of heat-generating pipe
Circuit where disconnecting temperature control device under condition；Detection circuit is connected to fever tube drive circuit, returns for detecting temperature control device place
The electric signal on road simultaneously exports corresponding level signal, and in the case where heat-generating pipe heating equipment is in running order, level signal is
High level, in the case where heat-generating pipe heating equipment is in off working state, level signal is low level.
Refer to heat-generating pipe to it will be appreciated by those skilled in the art that heat-generating pipe heating equipment is in running order
In liquid heated, heat-generating pipe heating equipment is in off working state and refers to not having liquid in heat-generating pipe, is generating heat
In the case where not having liquid in pipe, the temperature of heat-generating pipe just can be more than predetermined temperature.Specifically, heat-generating pipe is to liquid therein
When being heated, the temperature of heat-generating pipe is not above predetermined temperature, then heat-generating pipe heating equipment is in running order, temperature control dress
It sets in an ON state, detection circuit detects the presence of electric signal and exports high level；Heat-generating pipe has heated liquid therein
At the outflow of, liquid, there is no liquid in heat-generating pipe, so that the temperature of heat-generating pipe is higher than predetermined temperature, temperature control device in this case
Circuit where disconnecting it, then heat-generating pipe heating equipment is in off working state, temperature control device is in an off state, detection circuit
It detects there is no electric signal and exports low level.That is, heat-generating pipe is to it when detection circuit exports high level
In liquid heated, detection circuit export low level when, heat-generating pipe heating terminate.
In general, detection circuit is connected between heat-generating pipe and temperature control device, with detect heat-generating pipe and temperature control device it
Between electric signal (electric signal in circuit namely where temperature control device) and export corresponding level signal.It is in temperature control device
When off-state, electric signal is not present between heat-generating pipe and temperature control device, detection circuit exports low level；It is in temperature control device
When on-state, there are electric signal between heat-generating pipe and temperature control device, detection circuit exports high level.
Wherein, temperature control device should be the device switched on and off according to temperature come control circuit, for example, in temperature height
It disconnects when predetermined temperature, is connected when temperature is not higher than predetermined temperature.Temperature control device for example can be Self-resetting temperature switch,
There is no liquid in heat-generating pipe in the case where the temperature of heat-generating pipe is higher than predetermined temperature, Self-resetting temperature switch disconnects and level is believed
Number be low level；In the case where the temperature of heat-generating pipe is not higher than predetermined temperature, heat-generating pipe carries out the liquid in heat-generating pipe
Heating, Self-resetting temperature switch closure and level signal are high level.
Wherein, predetermined temperature is 130 DEG C~200 DEG C, under preferable case, and predetermined temperature such as can be 150 DEG C, such case
Under, Self-resetting temperature switch for example can be 150 DEG C of Self-resetting temperature switches, the case where the temperature of heat-generating pipe is higher than 150 DEG C
Under, 150 DEG C of Self-resetting temperature switches disconnect.It is of course also possible to select 140 DEG C of Self-resetting temperature switches, 180 DEG C of Self-resetting temperature
Switch etc..
It will be appreciated by those skilled in the art that also can choose other kinds of temperature control device, it is higher than as long as can be realized
Temperature control device of function in circuit both is within the protection scope of the present invention where predetermined temperature just disconnects it.
As shown in Figure 1, heat-generating pipe heating equipment provided by the utility model further includes master control borad, it is connected to detection circuit,
For receiving level signal and exporting corresponding control signal.Different control signals is exported here according to different level signals
Can be realized, can also be realized according to logic control program by logic circuit, no matter which kind of mode, be this field
Common technology, in this, it will not go into details.
As shown in Figure 1, heat-generating pipe heating equipment provided by the utility model further includes alarm device, it is connected to master control borad, is used
It alarms according to control signal；Wherein, master control borad is in the case where the level signal received is low level situation, the control of output
Signal processed is to complete signal so that alarm device is alarmed.
The control signal that alarm device is exported according to master control borad is reacted, specifically, in heat-generating pipe to liquid therein
In the case where being heated, in an ON state, detection circuit has detected level signal and has exported high level temperature control device, main
Control plate exports the control signal for not needing alarm due to receiving high level, and alarm device is failure to actuate；On the other hand, in heat-generating pipe
In the case where not having liquid in heat-generating pipe when heating is completed, the temperature of heat-generating pipe rises to over predetermined temperature, at temperature control device
In off-state, detection circuit detects no level signal and exports low level, and master control borad is defeated due to receiving low level
The control signal for needing to alarm out, alarm device are alarmed.Here alarm device can be a kind of information alert, for example, coffee
Alarm device in machine is that user is prompted to complete to brew when coffee is brewed and completed.
As shown in Figure 1, heat-generating pipe heating equipment provided by the invention further includes power module, it is connected to heat-generating pipe driving electricity
Road, for providing power supply for fever tube drive circuit.Power module can select common power module, and power module for example may be used
Think DC low voltage power supply.
Wherein, detection circuit includes diode, resistor assembly and triode, and diode is connected to heat-generating pipe and temperature control device
Between, for being rectified to electric signal；Resistor assembly is connected to diode；Triode is connected to resistor assembly,
The collector of triode is connected to master control borad；Wherein, detection circuit passes through the collector outputs level signals of triode.
Fig. 2 is the circuit diagram of detection circuit provided by the utility model, as shown in Fig. 2, the signal that detection circuit detects
Diode D1 rectification is first passed through, is depressured in resistance R1, R2, R3, triode Q1 folding is pushed, then passes through the current collection of triode Q1
The pole pole C (namely terminal ZERO) outputs level signals.Wherein the effect of capacitor C2 is filtering.Detection circuit shown in Fig. 2
Input terminal SENSOR is connected between heat-generating pipe and temperature control device, to detect the electric signal between heat-generating pipe and temperature control device.
Other devices and its arrangement in detection circuit shown in Fig. 2 are conventional arrangement mode, and in this, it will not go into details.
Fig. 3 is the circuit diagram of fever tube drive circuit provided by the utility model, as shown in figure 3, heat-generating pipe 1 and temperature control fill
2 series connections are set, are connect by terminal SENSOR with detection circuit between heat-generating pipe and temperature control device 2.Fever shown in Fig. 3
Tube drive circuit controls relay KC1 folding by switching transistor Q2, realizes weakness control forceful electric power, diode D2 and ZD1
It is protected as relay back-emf, enhances reliability.Other devices and its row in fever tube drive circuit shown in Fig. 3
Cloth is conventional arrangement mode, and in this, it will not go into details.
Fig. 4 is the circuit diagram of power module provided by the utility model, as shown in figure 4, power module can provide 12V,
5V DC low voltage power supply, current insurance silk FUSE1 shield in late-class circuit short circuit, resistance ZNR1 be varistor,
Capacitor C3 is X2 safety capacitor, so as to inhibit lightning surge etc. to interfere, to have the function that protect late-class circuit.In Fig. 4
Shown in other devices in power module and its arrangement be conventional arrangement mode, in this, it will not go into details.
Correspondingly, the utility model additionally provides a kind of coffee machine, including heat-generating pipe heating equipment described above.Coffee
Coffee machine such as leak through type coffee machine.
The utility model is further elaborated by taking coffee machine as an example below, heat-generating pipe 1 can be 220VAC 1000W
Heat-generating pipe, by heat-generating pipe work brewing coffee, temperature control device be 150 DEG C of Self-resetting temperature switches.Heat-generating pipe is to therein
Water is heated, and in the case where having water in heat-generating pipe, the temperature of heat-generating pipe is not above 150 DEG C, and detection device can detecte
To electric signal, i.e. detection circuit exports high level, represents coffee machine at this time just in brewing coffee.Water outflow in heat-generating pipe
Afterwards, the temperature of heat-generating pipe can rise to 150 DEG C or more, so that 150 DEG C of self-resetting switch disconnect, so that detection device exports
Low level, representing coffee-making machine brewing coffee at this time terminates.In the case where brewing coffee terminates, detection device exports low level,
To control alarm device alarm by master control borad, to prompt user's coffee brewing to complete.
The optional embodiment of the utility model embodiment, still, the utility model is described in detail in conjunction with attached drawing above
Embodiment be not limited to the above embodiment in detail can in the range of the technology design of the utility model embodiment
A variety of simple variants are carried out with the technical solution to the utility model embodiment, these simple variants belong to the utility model reality
Apply the protection scope of example.
Control circuit provided by the utility model is novel, realizes that functional safety is reliable, performance is stable, passes through temperature control device
The signal of the contact SENSOR is obtained with dexterously utilizing the signal of the detection circuit of heat-generating pipe heating equipment (for example, coffee machine)
Machine operation situation, so as to prompt whether user completes, ease for use and safety are all very high.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the utility model is implemented
No further explanation will be given to various combinations of possible ways for example.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model embodiment, as long as
It equally should be considered as the utility model embodiment disclosure of that without prejudice to the thought of the utility model embodiment.
Claims (10)
1. a kind of heat-generating pipe heating equipment, which is characterized in that the heat-generating pipe heating equipment includes:
Generate heat tube drive circuit, heat-generating pipe and temperature control device including series connection, and the heat-generating pipe is used for the heat-generating pipe
In liquid heated, the temperature control device the temperature of the heat-generating pipe be higher than predetermined temperature in the case where disconnect the temperature
Circuit where controlling device；And
Detection circuit is connected to the fever tube drive circuit, and the electric signal for circuit where detecting the temperature control device is simultaneously
Corresponding level signal is exported, the level signal is high electricity in the case where the heat-generating pipe heating equipment is in running order
Flat, in the case where the heat-generating pipe heating equipment is in off working state, the level signal is low level.
2. heat-generating pipe heating equipment according to claim 1, which is characterized in that the detection circuit is connected to the fever
Between pipe and the temperature control device, to detect the electric signal between the heat-generating pipe and the temperature control device and output is corresponding electric
Ordinary mail number.
3. heat-generating pipe heating equipment according to claim 2, which is characterized in that the temperature control device is that Self-resetting temperature is opened
It closes, there is no liquid, the Self-resetting in the heat-generating pipe in the case where the temperature of the heat-generating pipe is higher than the predetermined temperature
Temperature switch disconnects and the level signal is low level, the case where the temperature of the heat-generating pipe is not higher than the predetermined temperature
Under the heat-generating pipe the liquid in the heat-generating pipe is heated, Self-resetting temperature switch closure and the level
Signal is high level.
4. heat-generating pipe heating equipment according to claim 3, which is characterized in that the predetermined temperature is 130 DEG C~200
℃。
5. heat-generating pipe heating equipment according to claim 3, which is characterized in that the heat-generating pipe heating equipment further include:
Master control borad is connected to the detection circuit, for receiving the level signal and exporting corresponding control signal.
6. heat-generating pipe heating equipment according to claim 5, which is characterized in that the heat-generating pipe heating equipment further include:
Alarm device is connected to the master control borad, for being alarmed according to the control signal；
Wherein, the master control borad is in the case where the level signal received is low level situation, the control signal of output
To complete signal so that the alarm device is alarmed.
7. heat-generating pipe heating equipment according to claim 5, which is characterized in that the heat-generating pipe heating equipment further include:
Power module is connected to the fever tube drive circuit, for providing power supply for the fever tube drive circuit.
8. heat-generating pipe heating equipment according to claim 7, which is characterized in that the power module is DC low-voltage electricity
Source.
9. heat-generating pipe heating equipment according to claim 5, which is characterized in that the detection circuit includes:
Diode is connected between the heat-generating pipe and the temperature control device, for rectifying to the electric signal；
Resistor assembly is connected to the diode；And
Triode, is connected to the resistor assembly, and the collector of the triode is connected to the master control borad；
Wherein, the detection circuit exports the level signal by the collector of the triode.
10. a kind of coffee machine, which is characterized in that add including heat-generating pipe described in any one of claim 3 to 7 claim
Hot equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432794.9U CN209629487U (en) | 2018-08-31 | 2018-08-31 | Heat-generating pipe heating equipment and coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432794.9U CN209629487U (en) | 2018-08-31 | 2018-08-31 | Heat-generating pipe heating equipment and coffee machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209629487U true CN209629487U (en) | 2019-11-15 |
Family
ID=68471419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821432794.9U Active CN209629487U (en) | 2018-08-31 | 2018-08-31 | Heat-generating pipe heating equipment and coffee machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209629487U (en) |
-
2018
- 2018-08-31 CN CN201821432794.9U patent/CN209629487U/en active Active
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