CN210899643U - Heating control circuit and equipment - Google Patents
Heating control circuit and equipment Download PDFInfo
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- CN210899643U CN210899643U CN201921222555.5U CN201921222555U CN210899643U CN 210899643 U CN210899643 U CN 210899643U CN 201921222555 U CN201921222555 U CN 201921222555U CN 210899643 U CN210899643 U CN 210899643U
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Abstract
The utility model discloses a heating control circuit and equipment. The utility model discloses a first temperature detection module is connected with main control unit, sends first early warning signal to main control unit when detecting that the temperature of heating module exceeds the preset temperature range; the second temperature detection module is connected with the main controller and sends a second early warning signal to the main controller when detecting that the temperature of the heating module exceeds a preset temperature range; the main controller is connected with the switch module and sends a turn-off signal to the switch module when receiving the first early warning signal and/or the second early warning signal; the switch module is connected with the heating module and is turned off when receiving a turn-off signal so as to control the heating module to stop heating. Whether the heating module is controlled to heat or not through the first temperature detection module and the second temperature detection module, heating temperature runaway and equipment damage caused by damage of a single temperature sensor or other reasons are prevented, and safety accident risks are reduced.
Description
Technical Field
The utility model relates to an electrical control technical field especially relates to a heating control circuit and equipment.
Background
With the popularization of various heating devices, the use of heating circuits is increasing, however, the heating circuits often cause damage to the whole circuit and even the device due to inaccurate temperature control.
In the prior art, in order to control the temperature conveniently, the heating circuit usually uses a temperature sensor to obtain the temperature to carry out temperature control through main control unit or temperature controller, when temperature sensor or temperature controller appear unusually, can't in time perception temperature too high or low excessively, lead to heating temperature out of control, equipment damages.
The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a heating control circuit and equipment aims at solving among the prior art heating circuit and only obtains the technical problem that the temperature leads to heating temperature out of control, equipment to damage easily through a temperature sensor.
In order to achieve the above object, the present invention provides a heating control circuit, which comprises a first temperature detection module, a second temperature detection module, a switch module, a main controller and a heating module; wherein the content of the first and second substances,
the first temperature detection module is connected with the main controller and is further used for sending a first early warning signal to the main controller when the temperature of the heating module is detected to exceed a preset temperature range;
the second temperature detection module is connected with the main controller and is further used for sending a second early warning signal to the main controller when the temperature of the heating module is detected to exceed the preset temperature range;
the main controller is connected with the switch module and is used for sending a turn-off signal to the switch module when receiving the first early warning signal and/or the second early warning signal;
the switch module is connected with the heating module and used for switching off when receiving the switching-off signal so as to control the heating module to stop heating.
Preferably, the first temperature detection module is further connected to the heating module, and configured to send a first control signal to the heating module when detecting that the temperature does not exceed the preset temperature range, so as to implement heating temperature control.
Preferably, the second temperature detection module is further connected to the switch module, and configured to send a second control signal to the switch module when detecting that the temperature does not exceed the preset temperature range;
the main controller is further used for sending a starting signal to the switch module when the first early warning signal and the second early warning signal are not received;
the switch module is further configured to turn on when receiving the second control signal and the turn-on signal.
Preferably, the first temperature detection module comprises a first temperature controller and a first temperature sensor; the input end of the first temperature controller is connected with the first temperature sensor, the output end of the first temperature controller is connected with the first end of the main controller, and the control end of the first temperature controller is connected with the heating module.
Preferably, the second temperature detection unit includes a second temperature controller and a second temperature sensor; the input end of the second temperature controller is connected with the second temperature sensor, the output end of the second temperature controller is connected with the second end of the main controller, and the control end of the second temperature controller is connected with the switch module.
Preferably, the switch module comprises an intermediate relay and a contactor; and a coil of the intermediate relay is connected with the control end of the second temperature controller and the main controller, a normally open contact of the intermediate relay is connected with the coil of the contactor, and a normally closed contact of the contactor is connected with the heating module.
Preferably, the heating module comprises a solid-state relay and a heating pipe; the solid-state relay is connected with the normally closed contact of the contactor and the heating pipe respectively.
Preferably, the heating device further comprises a display touch module, the display touch module is connected with the main controller, and the display touch module is used for receiving the heating temperature and the heating time input by a user and sending the heating temperature and the heating time to the main controller;
the main controller is further configured to send a third control signal to the first temperature controller when receiving the heating temperature and the heating time, so that the first temperature controller controls the heating module to heat according to the third control signal.
Preferably, the warning device further comprises a warning module, wherein the warning module is connected with the main controller and used for giving a warning prompt when the main controller receives the first warning signal and/or the second warning signal.
The utility model discloses still provide a heating control equipment, heating control equipment includes as above heating control circuit.
The utility model discloses a first temperature detection module is connected with main control unit, sends first early warning signal to main control unit when detecting that the temperature of heating module exceeds the preset temperature range; the second temperature detection module is connected with the main controller and sends a second early warning signal to the main controller when detecting that the temperature of the heating module exceeds a preset temperature range; the main controller is connected with the switch module and sends a turn-off signal to the switch module when receiving the first early warning signal and/or the second early warning signal; the switch module is connected with the heating module and is turned off when receiving a turn-off signal so as to control the heating module to stop heating. Whether the heating module is controlled to heat or not through the first temperature detection module and the second temperature detection module, heating temperature runaway and equipment damage caused by damage of a single temperature sensor or other reasons are prevented, and safety accident risks are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional block diagram of an embodiment of a heating control circuit according to the present invention;
fig. 2 is a schematic diagram of a partial structure in an embodiment of a heating control circuit according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| PLC | Main controller | BT1 | |
|
| 100 | First temperature detection module | B1 | |
|
| 200 | Second temperature detection module | BT2 | |
|
| 300 | Switch module | B2 | |
|
| 400 | Heating module | SSR | |
|
| 500 | Display touch module | | Heating tube | |
| 600 | Alarm module | KA1 | Intermediate relay | |
| KM1 | Contactor |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a heating control circuit.
Referring to fig. 1, in an embodiment, the heating control circuit includes a first temperature detection module 100, a second temperature detection module 200, a switch module 300, a main controller PLC, and a heating module 400; the first temperature detection module 100 is connected to the main controller PLC, and configured to send a first warning signal to the main controller PLC when detecting that the temperature of the heating module 400 exceeds a preset temperature range; the second temperature detection module 200 is connected to the main controller PLC, and configured to send a second warning signal to the main controller PLC when detecting that the temperature of the heating module 400 exceeds the preset temperature range; the main controller PLC is connected to the switch module 300, and configured to send a turn-off signal to the switch module 300 when receiving the first warning signal and/or the second warning signal; the switch module 300 is connected to the heating module 400, and is configured to turn off when receiving the turn-off signal, so as to control the heating module 400 to stop heating.
It should be understood that, when the main controller PLC receives the warning signal sent by the first temperature detecting module 100 or the second temperature detecting module 200, the main controller PLC may send a turn-off signal to the switch module 300 to stop heating the heating module 400, of course, when the main controller PLC receives the warning signal sent by the first temperature detecting module 100 and the second temperature detecting module 200 at the same time, the main controller PLC may also send a turn-off signal to the switch module 300 to stop heating the heating module 400, and the first temperature detecting module 100 and the second temperature detecting module 200 play a role of dual security, thereby effectively avoiding a safety accident.
It should be noted that, in this embodiment, software programs required for signal interaction among the first temperature detection module, the second temperature detection module, the switch module, the main controller, and the heating module may all be specifically set with reference to the prior art in the field, and what is emphasized in this scheme is a specific circuit module and a connection structure between circuit modules.
Referring to fig. 1 and fig. 2 together, fig. 2 is a schematic structural diagram of a first temperature detection module, a second temperature detection module, a main controller, a switch module, a heating module and an alarm module in an embodiment. The first temperature detection module 100 comprises a first temperature controller BT1 and a first temperature sensor B1; the input end of the first temperature controller BT1 is connected to the first temperature sensor B1, the output end of the first temperature controller BT1 is connected to the first end of the main controller PLC, and the control end of the first temperature controller BT1 is connected to the heating module 400.
It should be understood that, in a common heating control device, only one temperature sensor is usually used to obtain the heating temperature of the heating module, and when the temperature sensor is damaged, the temperature controller is damaged, or other devices are in fault, the heating module 400 cannot be stopped to heat in time, which easily causes the heating temperature to be out of control.
When the first temperature sensor B1 detects that the heating temperature exceeds the preset temperature range, a first temperature signal is sent to the first temperature controller BT1, and the first temperature controller BT1 sends a first early warning signal to the main controller PLC after receiving the first temperature signal. The preset temperature range may be set in a user-defined manner according to an application scenario of the heating module 400, which is not limited in this embodiment.
The first temperature sensor B1 may be a contact temperature sensor or a non-contact temperature sensor, such as a platinum resistance temperature sensor or a thermopile, which is not limited in this embodiment.
Further, the first temperature detection module 100 is further connected to the heating module 400, and the first temperature detection module 100 is further configured to send a first control signal to the heating module 400 when detecting that the temperature does not exceed the preset temperature range, so as to implement heating temperature control.
It should be noted that when the first temperature sensor B1 detects that the temperature does not exceed the preset temperature range, it indicates that the heating apparatus is safe, at this time, the first temperature sensor B1 sends a second temperature signal to the first temperature controller BT1, and the first temperature controller BT1 realizes temperature control of the heating module 400 when receiving the second temperature signal.
In this embodiment, the second temperature detection unit 200 includes a second temperature controller BT2 and a second temperature sensor B2; the input end of the second temperature controller BT2 is connected with the second temperature sensor B2, the output end of the second temperature controller BT2 is connected with the second end of the master controller PLC, and the control end of the second temperature controller BT2 is connected with the switch module 300.
It should be understood that when the second temperature sensor B2 detects that the heating temperature exceeds the preset temperature range, a third temperature signal is sent to the second temperature controller BT2, and the second temperature controller BT2 sends a second early warning signal to the main controller PLC after receiving the third temperature signal.
Further, the second temperature detecting module 200 is further connected to the switch module 300, and the second temperature detecting unit 200 is further configured to send a second control signal to the switch module 300 when detecting that the temperature does not exceed the preset temperature range; the main controller PLC is further configured to send a start signal to the switch module 300 when the first warning signal and the second warning signal are not received; the switch module 300 is further configured to turn on when receiving the second control signal and the turn-on signal.
It should be noted that when the second temperature sensor B2 detects that the temperature does not exceed the preset temperature range, it indicates that the heating apparatus is safe, at this time, the second temperature sensor B2 sends a fourth temperature signal to the second temperature controller BT2, the second temperature controller BT2 sends a second control signal to the switch module 300 when receiving the fourth temperature signal, and the switch module 300 determines whether to turn off the switch module 300 according to the second control signal and the turn-on signal sent by the master controller PLC.
Further, the switch module 300 comprises an intermediate relay KA1 and a contactor KM 1; the coil of the intermediate relay KA1 is connected with the control end of the second temperature controller 100 and the main controller PLC, the normally open contact of the intermediate relay KA1 is connected with the coil of the contactor KM1, and the normally closed contact of the contactor KM1 is connected with the heating module 400.
In concrete the realization, when intermediate relay KA1 received master controller PLC's turn-off signal its normally open contact of turn-off, so can break off heating module, stop heating, when intermediate relay KA1 received master controller PLC's the signal of opening and the second control signal that second temperature controller BT2 sent, open its normally open contact, so can switch on contactor KM1, make heating module 400 heating then.
Further, the heating module 400 includes a solid-state relay SSR and a heating pipe FH; the solid state relay SSR is respectively connected with the normally closed contact of the contactor KM1 and the heating pipe FH.
It should be noted that the SSR is a contactless switch composed of a microelectronic circuit, a discrete electronic device, and a power electronic power device, and the isolation device is used to isolate the control end from the heating tube. The input end of the solid-state relay can directly drive a heavy-current load only by using a tiny control signal.
In addition, the heating control circuit further comprises a display touch module 500, the display touch module 500 is connected with the master controller PLC, and the display touch module 500 is used for receiving the heating temperature and the heating time input by the user and sending the heating temperature and the heating time to the master controller PLC.
It is easy to understand that the display touch module 500 can be a display or other display device, and a user can input the heating temperature and the heating time through the display touch module 500.
It should be noted that, after receiving the heating temperature and the heating time set by the user, the main controller PLC sends a third control signal to the first temperature controller BT1, and the first temperature controller BT1 controls the temperature of the heating module 400 when receiving the third control signal, so that the user only needs to preset the temperature and the time, and can heat normally even if no one is near the heating device, and when the temperature controller, the temperature sensor or the solid-state relay fails, the power can be cut off in time to stop heating.
Further, the heating control circuit further comprises an alarm module 600, wherein the alarm module 600 is connected with the main controller PLC and used for giving an alarm prompt when the main controller PLC receives the first early warning signal and/or the second early warning signal.
It is easy to understand that the alarm module 600, which may be a buzzer and/or an alarm indicator, performs an alarm prompt when receiving the early warning signal, so that the user can deal with the fault in time.
In addition, it should be emphasized that the above circuit module is based on the existing software control program, and combines the main controller, the intermediate relay, the contactor, the solid state relay, the temperature sensor, the temperature controller and other circuit elements to realize the specific circuit control.
The embodiment is connected with a main controller through a first temperature detection module, and when the temperature of the heating module is detected to exceed a preset temperature range, a first early warning signal is sent to the main controller; the second temperature detection module is connected with the main controller and sends a second early warning signal to the main controller when detecting that the temperature of the heating module exceeds a preset temperature range; the main controller is connected with the switch module and sends a turn-off signal to the switch module when receiving the first early warning signal and/or the second early warning signal; the switch module is connected with the heating module and is turned off when receiving a turn-off signal so as to control the heating module to stop heating. Whether the heating module is controlled to heat or not through the first temperature detection module and the second temperature detection module, heating temperature runaway and equipment damage caused by damage of a single temperature sensor or other reasons are prevented, and safety accident risks are reduced.
The utility model discloses still provide a heating control equipment, heating control equipment includes the heating control circuit as above-mentioned, the circuit structure of the heating control circuit of heating control equipment can refer to above-mentioned embodiment, no longer describe herein; it can be understood that, since the heating control device of the present embodiment adopts the technical solution of the heating control circuit, the heating control device has all the above-mentioned advantages.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A heating control circuit is characterized by comprising a first temperature detection module, a second temperature detection module, a switch module, a main controller and a heating module; wherein the content of the first and second substances,
the first temperature detection module is connected with the main controller and used for sending a first early warning signal to the main controller when the temperature of the heating module is detected to exceed a preset temperature range;
the second temperature detection module is connected with the main controller and used for sending a second early warning signal to the main controller when the temperature of the heating module is detected to exceed the preset temperature range;
the main controller is connected with the switch module and is used for sending a turn-off signal to the switch module when receiving the first early warning signal and/or the second early warning signal;
the switch module is connected with the heating module and used for switching off when receiving the switching-off signal so as to control the heating module to stop heating.
2. The heating control circuit of claim 1, wherein the first temperature detecting module is further connected to the heating module, and the first temperature detecting module is further configured to send a first control signal to the heating module to realize heating temperature control when detecting that the temperature does not exceed the preset temperature range.
3. The heating control circuit of claim 2, wherein the second temperature detecting module is further connected to the switch module, and the second temperature detecting module is further configured to send a second control signal to the switch module when detecting that the temperature does not exceed the preset temperature range;
the main controller is further used for sending a starting signal to the switch module when the first early warning signal and the second early warning signal are not received;
the switch module is further configured to turn on when receiving the second control signal and the turn-on signal.
4. The heating control circuit of claim 3, wherein the first temperature detection module comprises a first temperature controller and a first temperature sensor; the input end of the first temperature controller is connected with the first temperature sensor, the output end of the first temperature controller is connected with the first end of the main controller, and the control end of the first temperature controller is connected with the heating module.
5. The heating control circuit according to claim 4, wherein the second temperature detection unit includes a second temperature controller and a second temperature sensor; the input end of the second temperature controller is connected with the second temperature sensor, the output end of the second temperature controller is connected with the second end of the main controller, and the control end of the second temperature controller is connected with the switch module.
6. The heating control circuit of claim 5, wherein the switch module comprises an intermediate relay and a contactor; and a coil of the intermediate relay is connected with the control end of the second temperature controller and the main controller, a normally open contact of the intermediate relay is connected with the coil of the contactor, and a normally closed contact of the contactor is connected with the heating module.
7. The heating control circuit of claim 6, wherein the heating module comprises a solid state relay and a heater tube; the solid-state relay is connected with the normally closed contact of the contactor and the heating pipe respectively.
8. The heating control circuit according to any one of claims 4 to 7, further comprising a display touch module, wherein the display touch module is connected to the main controller, and is configured to receive a heating temperature and a heating time input by a user and send the heating temperature and the heating time to the main controller;
the main controller is further configured to send a third control signal to the first temperature controller when receiving the heating temperature and the heating time, so that the first temperature controller controls the heating module to heat according to the third control signal.
9. The heating control circuit according to any one of claims 1 to 7, further comprising an alarm module connected to the main controller for giving an alarm when the main controller receives the first warning signal and/or the second warning signal.
10. A heating control device comprising a heating control circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222555.5U CN210899643U (en) | 2019-07-29 | 2019-07-29 | Heating control circuit and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222555.5U CN210899643U (en) | 2019-07-29 | 2019-07-29 | Heating control circuit and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210899643U true CN210899643U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921222555.5U Active CN210899643U (en) | 2019-07-29 | 2019-07-29 | Heating control circuit and equipment |
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| CN (1) | CN210899643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220489A (en) * | 2022-07-12 | 2022-10-21 | 江苏时代新能源科技有限公司 | Baking system and control method and device thereof |
| CN116397337A (en) * | 2023-05-15 | 2023-07-07 | 江苏阿代尔新材料科技有限公司 | Device for high-efficiency cyclic heating of molten polyester chips |
-
2019
- 2019-07-29 CN CN201921222555.5U patent/CN210899643U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220489A (en) * | 2022-07-12 | 2022-10-21 | 江苏时代新能源科技有限公司 | Baking system and control method and device thereof |
| CN115220489B (en) * | 2022-07-12 | 2024-04-12 | 江苏时代新能源科技有限公司 | Baking system and control method and device thereof |
| CN116397337A (en) * | 2023-05-15 | 2023-07-07 | 江苏阿代尔新材料科技有限公司 | Device for high-efficiency cyclic heating of molten polyester chips |
| CN116397337B (en) * | 2023-05-15 | 2023-09-08 | 江苏阿代尔新材料科技有限公司 | Device for circularly heating and melting polyester chips |
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