CN109032206A - A kind of automatic temperature-controlled circuit based on jump type temperature switch - Google Patents
A kind of automatic temperature-controlled circuit based on jump type temperature switch Download PDFInfo
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- CN109032206A CN109032206A CN201810893401.2A CN201810893401A CN109032206A CN 109032206 A CN109032206 A CN 109032206A CN 201810893401 A CN201810893401 A CN 201810893401A CN 109032206 A CN109032206 A CN 109032206A
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- temperature
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention discloses a kind of automatic temperature-controlled circuits based on jump type temperature switch, its main feature is that: a control unit is formed by two KSD jump type temperature switches, two relays, power supplys, described two one KSD of temperature switch are low-temperature switch, and another KSD is high temperature shutoff；One end of the KSD low-temperature switch connects power supply, and the other end connects one end of the first relay coil, first relay coil other end ground connection；First relay obtain it is electric after its normally opened contact become closure connection temperature measuring point load power switch, temperature measuring point load the other end ground connection；One end of the KSD high temperature shutoff connects power supply by the normally-closed contact of the first relay, and the other end connects one end of the second relay coil, the second relay coil other end end ground connection；Second relay obtain it is electric after its normally opened contact become closure connection the first relay coil one end.The present invention is controlled by the Self-resetting that temperature can be realized in lower-cost KSD temperature switch and general-purpose relay.
Description
Technical field
The invention belongs to cyclotron fields, and in particular to a kind of automatic temperature-controlled electricity based on jump type temperature switch
Road.
Background technique
During 230MeV superconducting cyclotron electrostatic draws deflecting plates experimental provision high-potting, need using heating
Band toasts vacuum chamber, and the purpose of baking is first is that experimental enviroment in dry vacuum chamber, second is that under heating condition, metal material
The gas molecule of middle absorption improves vacuum degree, while being avoided that sparking during high-potting convenient for excluding.Heating tape is fixed
It afterwards, is fluorubber material because sealing is enclosed with zero in vacuum chamber, it is attached at 200 degrees Celsius that this kind of circle of material zero can bear maximum temperature
Closely, it is toasted at a temperature of nearby more than this temperature or long-time, necessarily deforms zero circle, cause vacuum leak.Therefore, having must
Heating tape circuit is controlled, heating temperature is enable to change in the reasonable scope.
Although currently, there is the temperature control technology of comparative maturity in the market, first, cost of manufacture is high: common temperature control side
Method is generally using the side switched to open or closed circuit for controlling contact or 24v relay by number or analog circuit
Method.Specifically: temperature signal is simultaneously converted to voltage signal by temperature sensor (generalling use PT100) real-time measurement temperature signal
Temperature controller is fed back to, when the temperature voltage signal that temperature-sensing probe feeds back to temperature controller reaches temperature upper limit, temperature controller control is cut
Deenergizing, with the decline of temperature, when the temperature voltage signal that temperature-sensing probe feeds back to master control borad reaches lowest temperature, temperature control
Instrument control contactor connects circuit.It is therefore seen that this method of the prior art, is by temperature-sensing probe and control panel and phase
The driving circuit of pass goes the open or close of control contactor contact, and package unit is complicated, at high cost.Second, it is this based on master
The electric elements of the temperature controller of control plate driving are damaged (example in the high temperature of superconducting cyclotron, high pressure and high-intensity magnetic field quickly
If sparking can generate X-ray under hyperbaric environment, there is damage to electronic component, and this kind of temperature controller equally can nothing in high-intensity magnetic field
Method use), cause it is this be not available at all in superconducting cyclotron based on the temperature controller of master control borad, it is domestic at present to be suitble to
In the high-temperature control device of superconducting cyclotron be also blank.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of automatic temperature-controlled circuit based on jump type temperature switch,
It solves the problems, such as that the temperature controller cost of manufacture of the prior art is high, be not suitable for high temperature, high pressure, high-intensity magnetic field application environment.
A kind of automatic temperature-controlled circuit based on jump type temperature switch, its main feature is that: it is by two KSD jump type temperature
Switch, two relays, power supply form a control unit, and described two one KSD of temperature switch are low-temperature switch, another KSD
For high temperature shutoff；Described two relays include the first relay, the second relay；One end of the KSD low-temperature switch connects
Power supply, the other end connect one end of the first relay coil, first relay coil other end ground connection；First relay obtain it is electric after
Its normally opened contact becomes the power switch of closure connection temperature measuring point load, the other end ground connection of temperature measuring point load；The KSD high temperature
One end of switch connects power supply by the normally-closed contact of the first relay, and the other end connects one end of the second relay coil, the
Two relay coil other end ends ground connection；Second relay obtain it is electric after its normally opened contact become closure connection the first relay line
One end of circle.
When single-point thermometric, it is only necessary to which the KSD that adjacent installation two measures low temperature and high temperature respectively in temperature measuring point position is jumped
Modification temperature switch, described two KSD jump type temperature switches are separately mounted to heat generating device surface.
It, will be multiple equivalent specified if the heat generating device required temperature range of distinct device is consistent when multi-point temperature measurement
It is worth low-temperature switch series connection, equally multiple equivalent rated value high temperature shutoffs is connected, and the load of multiple temperature measuring points is in parallel.
When multi-point temperature measurement, if the heat generating device required temperature range of distinct device is inconsistent, control unit is multiple
Control unit in parallel, is that multiple single-point thermometric control units are parallel with one another.
Relay is separately installed, is used in series with jump type temperature switch, utilizes the switch state of jump type temperature switch
Control the switch state variation of normally closed, the normally opened node of relay.
Relay power supply selects power supply voltage range and type according to power reguirements needed for relay, this power supply is only
It is used in parallel if multichannel is with voltage rating relay for powering for relay work.
Relay, the power supply of the circuit are placed in the normal temperature environment far from temperature measuring point, and the relay is 220V open circuit
Device combination contact uses.
Advantages of the present invention effect
1. the present invention is controlled by the Self-resetting that temperature can be realized in lower-cost KSD temperature switch and general-purpose relay.
Specially utilize two jump formula temperature switches, two relays, a power supply, constitute one very simply, cost it is very low,
The good temperature control circuit of Self-resetting control effect again.Further, it is connected respectively with relay K1, K2 using KSD temperature switch
Obtain the principle that K1, K2 obtain electrical circuit afterwards, using low-temperature switch obtain it is electric after, the variation of K1 relay contact is to realizing low temperature thermometric
Principle, the contact K1 variation after being powered off using low-temperature switch, high temperature shutoff obtain it is electric after the contact K2 change so that K1 second
Principle that is electric, realizing high-temperature measurement, solve more prior art temperature controller electric elements, complex manufacturing technology, at high cost
Problem, every temperature control device component cost of the present invention only have more than 50 yuan, are prior art temperature controller price (more than 2000 yuan)
1/40th.
2. the present invention can be used for high temperature and pressure strong magnetic field circumstance, domestic blank has been filled up.The present invention uses simple circuit
Temperature controller master control board component is replaced instead of master control borad circuit, using self-healing temperature switch, using by relay and power supply
The only KSD temperature switch method that is deployed in temperature measuring point far from high temperature and pressure strong magnetic field circumstance, so that being deployed in high temperature and pressure
Component number in strong magnetic field circumstance reaches at least, and the temperature controller controlled so as to avoid the prior art based on master control borad is existed
When 230MeV superconducting cyclotron carries out high temperature measurement, since component is more on master control borad, more component is easy damage
Bad the problem of not being available, the blank of domestic superconducting cyclotron high-temperature control is filled up.
Detailed description of the invention
Fig. 1 is that the present invention is based on the temperature control circuit static circuit figures of jump type temperature switch；
Fig. 2-1 is that K1 contactor of the present invention obtains electrical schematic for the first time；
Fig. 2-2 is that single-point of the present invention surveys cryogenic circuit schematic diagram；；
Fig. 3-1 is that K2 contactor of the present invention obtains electrical schematic；
Fig. 3-2 is that K1 contactor of the present invention obtains electrical schematic for the second time；
Fig. 3-3 is single-point pyrometry circuit diagram of the present invention；
KSD series connection schematic diagram when Fig. 3-4 is multi-point temperature measurement and consistent temperature range；
Multiple-unit parallel connection schematic diagram when Fig. 3-5 is multi-point temperature measurement and inconsistent temperature range.
Specific embodiment
Design principle of the present invention
1, the temperature switch controlled using two Self-resettings.The Self-resetting control is both not need extraneous control, and temperature is opened
Close the unlatching and closure to draw oneself up according to the temperature oneself that detects, this point be different from the prior art based on master control borad
Temperature detect switch (TDS), by the unlatching and closure of master control borad control relay contact.
2, K1, K2 are established and obtains two electric closed circuits, as shown in Fig. 2-1,3-1.Two respective one end of temperature switch
Power supply is connected, the other end connects respective relay (K1, K2)；One end of each relay connects respective temperature detect switch (TDS), separately
One end ground connection, to constitute two closed circuits, one is that K1 obtains electric closed circuit such as Fig. 2-1, and one is that K2 obtains electric be closed back
Road such as Fig. 3-1.It is after being greater than 150 degree of lower limit temperature because of temperature that K2, which is obtained electric, in 3-1 figure, and KSD-150 is gone off by being closed, and is led
K1 power-off is caused, so that the connection of K1 is restored to 1 contact and 3 contacts, 3 contacts are hanging points, do not connect, but 1 contact and K2
The connection of line packet, leads to K2 work once electrified.
3, electric back contact variation is obtained by K1 and realizes that single-point surveys low temperature, as shown in Fig. 2-2.It is low when temperature is less than lower limit
Temperature closes the switch, and low-temperature switch one end connects power supply, and the other end connects relay K1, thus the other end ground connection of K1 constitutes K1
Electrical circuit is obtained for the first time.K1 obtain it is electric after its normally opened contact K1-1NO from terminal 3 be moved to terminal 4, be thus connected to the one of load
End, the other end ground connection of load, realizes single-point side low temperature.
4, single-point side high temperature is realized by the variation that the variation and K2 of K1 power-off back contact obtain electric back contact, such as Fig. 3-1,3-
2, shown in 3-3.Single-point pyrometry is in two steps: step 1, as shown in figure 3-1, with the variation of K1 power-off back contact so that height
Temperature switchs electric.High temperature shutoff obtain it is electric there are two condition, first, high temperature shutoff Self-resetting control, when temperature is less than more than lower limit
When the upper limit, high temperature shutoff becomes being closed from opening, second, K1 relay power-off after its normally-closed contact K1-2NO from be powered when it is normal
Open become power-off after it is normally closed, thereby turned on the circuit from power supply to high temperature shutoff.Step 2 is obtained with K2 as shown in figure 3-2
The variation of electric back contact is so that obtain for second of K1 electric.High temperature shutoff obtain it is electric after, the relay K2 of series connection with it is also the same electric, K2
It is electric after its normally opened contact K2-1NO from powering off when it is normally opened become be powered after it is normally closed, be moved to terminal from terminal 1 after closure
2, to connect from power supply by the contact K2 to the circuit K1, due also to the other end of K1 be grounded, thus composition K1 the
It is secondary to obtain electric circuit.Due to K1 obtain it is electric after its normally opened contact K1-1NO from terminal 3 be moved to terminal 4, be thus connected to load
One end, load the other end ground connection, be achieved in single-point side high temperature.
5, when actual deployment, power supply and relay in circuit of the present invention will not be placed on the temperature measuring point spent 100 more, but
It is placed in the normal temperature environment far from temperature measuring point, the KSD temperature switch only in circuit is placed on temperature measuring point.With prior art phase
Than, since sparking can generate X-ray under hyperbaric environment, this ray can make the component on prior art temperature controller master control borad by
To influence, without being had an impact to power supply and relay.In addition, the relay of the invention is that 220V breaker combines touching
Point uses.
Based on principles above, the present invention devises a kind of automatic temperature-controlled circuit based on jump type temperature switch.
A kind of automatic temperature-controlled circuit based on jump type temperature switch is as shown in Figure 1 a single-point temperature measurement circuit, is
One control unit, described two one KSD of temperature switch are formed by two KSD jump type temperature switches, two relays, power supply
It is high temperature shutoff KSD180 for low-temperature switch KSD150, another KSD；Described two relays include the first relay K1, second
Relay K2；One end of the low-temperature switch KSD150 connects power supply, and the other end connects one end of the first relay K1 coil, the
One relay K1 coil other end ground connection；First relay K1 obtain it is electric after its normally opened contact K1-1NO become closure connection temperature measuring point
The power switch of load, such as terminal 4, the other end ground connection of temperature measuring point load；One end of the KSD high temperature shutoff KSD180 passes through
The normally-closed contact K1-2NO connection power supply of first relay K1, the other end connect the second relay K2 coil one end, second after
The coil other end end electric appliance K2 ground connection；Second relay obtain it is electric after its normally opened contact K2-1NO become closure connection the first relay
One end of the coil of K.
Supplementary explanation:
1, when actual deployment, it is only necessary to which KSD temperature switch is laid in temperature measuring point load, and relay and power supply are not laid in
In hot environment, but it is laid in original and is spent in place of hot environment from 100 more；Relay, the power supply of the circuit are placed on far from survey
In the normal temperature environment of warm spot, the relay is the use of 220V breaker combination contact.
2, normally opened, the normally-closed contact in Fig. 1 are for terminal 1, are normal if contact and terminal 1 are closed when static
Closed contact, on the contrary it is normally opened contact, and terminal 2, terminal 3 are hanging point in Fig. 1, and K1-1NO is connected to hanging point end when due to static state
On son 3, therefore, K1-1NO is normally opened contact.
When single-point thermometric, it is only necessary to which the KSD that adjacent installation two measures low temperature and high temperature respectively in temperature measuring point position is jumped
Modification temperature switch, described two KSD jump type temperature switches are separately mounted to heat generating device surface.
It as shown in Figure 3-4,, will if the heat generating device required temperature range of distinct device is consistent when multi-point temperature measurement
Multiple equivalent rated value low-temperature switches series connection equally connect multiple equivalent rated value high temperature shutoffs, and by multiple temperature measuring points
Load is in parallel.
Supplementary explanation:
When multiple temperature measuring points, need to place two KSD temperature switches, a low-temperature switch, a high temperature in each temperature measuring point
Switch, it is assumed that there are 4 temperature measuring points, then needs to place 1 low-temperature switch, 1 high temperature shutoff on each temperature measuring point respectively, if
The temperature range of this 4 temperature measuring points is consistent, is all 150-180 degree, then 4 low-temperature switch KSD150 can connect, and 4 high temperature are opened
Closing KSD180 can also connect, although concatenated when multiple temperature switches, 4 low-temperature switches share a relay K1, and 4
A high temperature shutoff also shares a relay K2.A, when temperature, which is higher than 150 degree, is less than 180 degree, a KSD150 disconnects, it is whole A circuit just disconnects.Assuming that have in 4 KSD150 one measure temperature higher than 150 and be less than 180 degree when, although other 3 all
It remains as closed state there are no reaction also to have no relations, this measures the KSD150 temperature switch of temperature change i.e. by being closed first
State is gone off, entire circuit is because be that series connection connects at this time, as soon as there is a temperature switch to disconnect, entire circuit is disconnected.
Since 4 KSD150 share a relay K1, at this point, the contact K1-2NO of K1 comes back to the position of terminal 1, K1-1NO weight
The position for newly returning to terminal 3, since 4 loads are in parallel, a shared terminals 4, if K1-1NO is moved to end from terminal 3
Son 4, even if the KSD150 in other 3 loads reacts not yet, but 4 loads in parallel at this time all power off, and have reached 4
Load the purpose tested respectively.It therefore, can be using serial distribution KSD, cloth in parallel when multiple temperature measuring point temperature ranges are consistent
If the method for temperature measuring point load is equivalent to all low temperature or high temperature KSD and all generates together when one of KSD generates jump
The jump of sample.B, when temperature is less than 150, it is necessary to which all KSD150 are connected, and entire circuit is just connected.Because KSD is
As long as concatenated his characteristic be only lower than 150 can just be closed thus must be below 150 this could lead to all the way
There is a point to be not below 150 series loops in ABCD to be just not turned on.
As in Figure 3-5, when multi-point temperature measurement, if the heat generating device required temperature range of distinct device is inconsistent, control
Unit processed is the control unit of multiple parallel connections, is that multiple single-point thermometric control units are parallel with one another.
As shown in Fig. 2-1,3-1, relay is separately installed, connects respectively with jump type temperature switch KSD150, KSD180
It uses, the switch state using switch state control normally closed, the normally opened node of relay of jump type temperature switch changes.
Relay power supply selects power supply voltage range and type according to power reguirements needed for relay, this power supply is only
It is used in parallel if multichannel is with voltage rating relay for powering for relay work.
Relay, the power supply of the circuit are placed in the normal temperature environment far from temperature measuring point, and the relay is disconnected using 220v
Road device cooperates switch contact to use.
It is emphasized that embodiment of the present invention is illustrative and not restrictive, therefore the present invention includes
It is not limited to embodiment described in specific embodiment.
Claims (7)
1. a kind of automatic temperature-controlled circuit based on jump type temperature switch, it is characterised in that: be by two KSD jump type temperature
Switch, two relays, power supply form a control unit, and described two one KSD of temperature switch are low-temperature switch, another KSD
For high temperature shutoff；Described two relays include the first relay, the second relay；One end of the KSD low-temperature switch connects
Power supply, the other end connect one end of the first relay coil, first relay coil other end ground connection；First relay obtain it is electric after
Its normally opened contact becomes the power switch of closure connection temperature measuring point load, the other end ground connection of temperature measuring point load；The KSD high temperature
One end of switch connects power supply by the normally-closed contact of the first relay, and the other end connects one end of the second relay coil, the
Two relay coil other end ends ground connection；Second relay obtain it is electric after its normally opened contact become closure connection the first relay line
One end of circle.
2. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
When single-point thermometric, it is only necessary to which in temperature measuring point position, adjacent installation two measures the KSD jump type temperature of low temperature and high temperature respectively
Switch, described two KSD jump type temperature switches are separately mounted to heat generating device surface.
3. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
When multi-point temperature measurement, if the heat generating device required temperature range of distinct device is consistent, multiple equivalent rated value low temperature are opened
Series connection is closed, equally multiple equivalent rated value high temperature shutoffs are connected, and the load of multiple temperature measuring points is in parallel.
4. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
When multi-point temperature measurement, if the heat generating device required temperature range of distinct device is inconsistent, control unit is the control of multiple parallel connections
Unit processed is that multiple single-point thermometric control units are parallel with one another.
5. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
Relay is separately installed, is used in series with jump type temperature switch, controls relay using the switch state of jump type temperature switch
The switch state of normally closed, the normally opened node of device changes.
6. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
Relay power supply selects power supply voltage range and type according to power reguirements needed for relay, this power supply be only used for for after
Electric appliance works normally power supply, used in parallel if multichannel is with voltage rating relay.
7. a kind of automation temperature-control circuit based on jump type temperature switch as described in claim 1, it is characterised in that:
Relay, the power supply of the circuit are placed in the normal temperature environment far from temperature measuring point, and the relay is that 220V breaker combines touching
Point uses.
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| CN201810893401.2A CN109032206B (en) | 2018-08-07 | 2018-08-07 | A kind of automatic temperature-controlled circuit based on jump type temperature switch |
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| CN201810893401.2A CN109032206B (en) | 2018-08-07 | 2018-08-07 | A kind of automatic temperature-controlled circuit based on jump type temperature switch |
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| CN109032206B CN109032206B (en) | 2019-10-15 |
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