CN217604629U - Drying cabinet temperature control system - Google Patents
Drying cabinet temperature control system Download PDFInfo
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- CN217604629U CN217604629U CN202221161123.XU CN202221161123U CN217604629U CN 217604629 U CN217604629 U CN 217604629U CN 202221161123 U CN202221161123 U CN 202221161123U CN 217604629 U CN217604629 U CN 217604629U
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- pid controller
- drying
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Abstract
The utility model relates to the technical field of drying cabinets, and provides a drying cabinet temperature control system which is used for controlling the drying temperature in a drying cabinet, wherein the drying cabinet is provided with a control cavity and a drying cavity, and the temperature control system comprises a PID controller, a solid-state relay, a first temperature sensor and a heating module; PID controller and solid state relay all set up in the control chamber, and first temperature sensor and heating module all set up in dry intracavity, first temperature sensor and solid state relay all with PID controller electric connection, solid state relay and heating module electric connection. The utility model discloses an adopt the PID controller as temperature control system's main control module, can realize controlling the inside temperature in dry chamber with closed-loop control's mode, compare in adopting the PLC controller, need not to program in the controller, and control circuit is simpler, the cost is lower can effectively improve the temperature control precision simultaneously, and then realize improving the performance of drying cabinet.
Description
Technical Field
The utility model relates to a drying cabinet technical field particularly, relates to a drying cabinet temperature control system.
Background
The drying cabinet is a common equipment in the field of medical equipment, and can realize carrying out rapid draing to abluent medical equipment to the evaporation of moisture on the medical equipment is with higher speed, so that subsequent use.
A conventional drying cabinet is usually provided with a temperature control system so as to control the drying temperature in the drying cabinet in real time. For example, the control system of the drying cabinet disclosed in the prior application publication No. CN109028771B entitled "dual-chamber vacuum drying cabinet and drying method using the same" of the applicant comprises a PLC controller, a temperature sensor, a heater and other components, wherein the temperature sensor and the heater are respectively electrically connected to the PLC controller, the temperature sensor is used for detecting the temperature of the drying chamber in the drying cabinet and transmitting the temperature information to the PLC controller, and at this time, the PLC controller can control the heater to operate according to the temperature information in the drying chamber obtained from the temperature sensor, thereby achieving the purpose of controlling the drying temperature in the drying chamber in the drying cabinet. However, the PLC is often used for programming in the PLC to control the heater, the whole programming process is complicated, and the PLC is high in cost and poor in temperature control accuracy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drying cabinet temperature control system to the realization utilizes the PID controller to control the temperature in drying cabinet inner drying chamber, reduce cost and improvement accuse temperature precision on the basis of simplifying control process.
The purpose of the utility model is realized through the following technical scheme:
a drying cabinet temperature control system is used for controlling the drying temperature in a drying cabinet, the drying cabinet is provided with a control cavity and a drying cavity, and the temperature control system comprises a PID controller, a solid-state relay, a first temperature sensor and a heating module;
PID controller and solid state relay all set up in the control chamber, and first temperature sensor and heating module all set up in dry intracavity, first temperature sensor and solid state relay all with PID controller electric connection, solid state relay and heating module electric connection.
Optionally, the temperature control system further includes a heat dissipation module, the heat dissipation module includes a heat dissipation fan, a slide seat and a linear driving member, the heat dissipation fan is disposed on the slide seat, the slide seat is slidably disposed on an inner wall of one side of the control cavity, heat dissipation holes are disposed on a side wall of the other side of the control cavity, and the linear driving member is configured to drive the slide seat to reciprocate along a horizontal direction.
Furthermore, the heat dissipation module further comprises a second temperature sensor, the second temperature sensor is arranged in the control cavity, and the second temperature sensor, the heat dissipation fan and the linear driving component are all electrically connected with the PID controller.
Furthermore, the linear driving component comprises a reciprocating screw rod and a micro motor, one end of the reciprocating screw rod is in transmission connection with the output end of the micro motor, the other end of the reciprocating screw rod horizontally penetrates through the sliding seat and then is in rotating connection with the inner wall of the control cavity, the reciprocating screw rod is in threaded connection with the sliding seat, and the micro motor is electrically connected with the PID controller.
Optionally, the temperature control system further includes a touch screen, and the touch screen is electrically connected to the PID controller.
Optionally, the temperature control system further includes a temperature disconnection switch, and the first temperature sensor and the heating module are electrically connected to the temperature disconnection switch.
Optionally, the temperature control system further comprises an alarm module, and the alarm module is electrically connected with the PID controller.
Furthermore, the alarm module is an audible and visual alarm and/or a buzzer alarm.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
1. the utility model provides a temperature control system compares in prior art, through the main control module who adopts the PID controller as temperature control system, can realize controlling the inside temperature in dry chamber with closed-loop control's mode, compares in adopting the PLC controller, need not to programme in the controller, and control circuit is simpler, the cost is lower can effectively improve the temperature control precision simultaneously, and then realizes improving the performance of dry cabinet.
2. The utility model can ensure that the temperature in the control cavity is maintained in a better temperature range by additionally arranging the heat dissipation module for heat dissipation in the control cavity, so that the electrical components arranged in the control cavity can work normally; meanwhile, the heat dissipation fan capable of reciprocating along the horizontal direction is arranged for heat dissipation, so that the situation that the temperature of the local area inside the control cavity is too high can be avoided as much as possible, and the heat dissipation effect is improved.
Drawings
Fig. 1 is a schematic structural diagram of a drying cabinet provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the inside of the control box according to the embodiment of the present invention;
fig. 3 is a partial side sectional view of a control box according to an embodiment of the present invention;
fig. 4 is an electrical schematic block diagram of a temperature control system according to an embodiment of the present invention.
Icon: 100-a drying cabinet, 100 a-a control box, 100a 1-a heat dissipation hole, 10-a PID controller, 20-a solid state relay, 30-a first temperature sensor, 40-a heating module, 50-a heat dissipation module, 50 a-a heat dissipation fan, 50 b-a sliding seat, 50 c-a second temperature sensor, 50 d-a reciprocating screw rod, 50 e-a micro motor, 60-a touch screen, 70-a temperature cut-off switch, 80-an alarm module and 90-a power supply.
Detailed Description
Referring to fig. 1 to 4, the embodiment provides a drying cabinet temperature control system for controlling a drying temperature in a drying cabinet 100. Wherein, drying cabinet 100 is provided with control chamber and drying chamber, and temperature control system includes PID controller 10, solid-state relay 20, first temperature sensor 30 and heating module 40.
It can be understood that, referring to fig. 1, the control cavity of the present embodiment may be an internal space of the control box 100a disposed at the top of the drying cabinet 100, and the control cavity belongs to a relatively closed chamber, so as to protect each component disposed in the control cavity, and simultaneously make the layout of the drying cabinet 100 more reasonable, and at this time, the PID controller 10 and the solid-state relay 20 are both disposed in the control cavity. A drying chamber (not shown) is disposed inside the drying cabinet 100 to dry the medical instruments.
Meanwhile, the first temperature sensor 30 and the heating module 40 are both disposed in the drying cavity to detect the temperature inside the drying cavity in real time through the first temperature sensor 30, and the heating module 40 is used to heat the air inside the drying cavity to change the temperature inside the drying cavity, where the heating module 40 of this embodiment may be, but is not limited to, a heating sheet or a heater. At this time, the first temperature sensor 30 and the solid-state relay 20 are both electrically connected to the PID controller 10, and the solid-state relay 20 is electrically connected to the heating module 40.
By the arrangement, in the practical application process, the first temperature sensor 30 detects the temperature inside the drying cavity in real time and transmits the temperature to the PID controller 10, and if the temperatures inside the drying cavities are lower than the preset temperature, the PID controller 10 controls the heating module 40 to work through the solid-state relay 20, so that the air inside the drying cavity is heated by the heating module 40, and the temperature inside the drying cavity quickly reaches the preset temperature; if the temperature inside the drying cavities is higher than the preset temperature, the PID controller 10 controls the heating module 40 to stop working through the solid-state relay 20, so that the temperature inside the drying cavities is reduced to the preset temperature, and thus, when the medical instrument is dried, the temperature inside the drying cavities is always in a better temperature range.
It can be seen that the temperature control system that this embodiment provided compares in prior art, through adopting PID controller 10 as temperature control system's main control module, can realize controlling the inside temperature in dry chamber with closed-loop control's mode, compares in adopting the PLC controller, need not to program in the controller, and control circuit is simpler, the cost is lower can effectively improve the temperature control precision simultaneously, and then realizes improving the performance of drying cabinet 100.
In this embodiment, it is considered that the control chamber inside the control box 100a belongs to a relatively closed chamber, and meanwhile, various components arranged in the control chamber generate heat in the actual working process, so if the generated heat is not processed in time, the temperature in the control chamber is continuously increased, and further the working performance of each component in the control chamber is affected. Therefore, the temperature control system in this embodiment further includes a heat dissipation module 50 to accelerate the outflow of heat inside the control chamber, so as to ensure that various components inside the control chamber continuously and reliably operate within a preferred temperature range.
Specifically, referring to fig. 2, 3 and 4, the heat dissipation module 50 includes a heat dissipation fan 50a, a sliding base 50b and a linear driving member, the heat dissipation fan 50a is disposed on the sliding base 50b, the sliding base 50b is slidably disposed on an inner wall of one side of the control cavity (i.e., an inner wall of one side of the control box 100 a) so that the sliding base 50b can freely slide in the horizontal direction, a heat dissipation hole 100a1 communicating with the external environment is formed on an opposite side wall of the other side of the control cavity, and the linear driving member is used for driving the sliding base 50b to reciprocate along the horizontal direction (i.e., the width direction of the control cavity).
At this time, when the control cavity needs to be cooled, the cooling fan 50a is started to blow the air in the control cavity to the side of the control cavity provided with the cooling holes 100a1 and flow out from the cooling holes 100a1, so as to achieve the purpose of accelerating the outflow of heat in the control cavity; meanwhile, the linear driving member is used for driving the sliding seat 50b to reciprocate along the horizontal direction, and then the sliding seat 50b is used for driving the heat dissipation fan 50a to reciprocate along the horizontal direction, so that the wind energy blown out by the heat dissipation fan 50a can cover all regions inside the control cavity as much as possible, the condition that the temperature of the local region inside the control cavity is too high is avoided, and compared with the conventional mode that the heat dissipation fan 50a is fixed at a certain position for heat dissipation, the heat dissipation effect can be effectively improved.
Meanwhile, in order to improve the automation degree of the heat dissipation module 50 during heat dissipation, with reference to fig. 2 and 4, the heat dissipation module 50 of this embodiment further includes a second temperature sensor 50c, the second temperature sensor 50c is disposed in the control cavity to detect the temperature inside the control cavity in real time through the second temperature sensor 50c, at this time, the second temperature sensor 50c, the heat dissipation fan 50a and the linear driving component are all electrically connected to the PID controller 10, so as to transmit the detected temperature information inside the control cavity to the PID controller 10 through the second temperature sensor 50c, and the PID controller 10 controls the heat dissipation fan 50a and the linear driving component to operate according to the acquired temperature information.
With this arrangement, the temperature inside the control chamber is detected in real time by the second temperature sensor 50c, and when the temperature inside the control chamber is higher than the preset temperature, the PID controller 10 can directly control the heat dissipation fan 50a and the linear driving member to work synchronously, so that the air inside the control chamber is blown out by the heat dissipation fan 50a reciprocating in the horizontal direction to dissipate heat.
It is understood that the linear driving member of the present embodiment may be a conventional linear driving device such as an electric push rod, an air cylinder or a hydraulic cylinder, or may be a mechanism capable of achieving linear reciprocating motion. In order to simplify the structure of the linear driving member as much as possible and reduce the cost, with reference to fig. 3, the linear driving member of the present embodiment includes a reciprocating screw rod 50d and a micro motor 50e, one end of the reciprocating screw rod 50d is in transmission connection with the output end of the micro motor 50e through a coupling (not shown in the figure), the other end of the reciprocating screw rod 50d horizontally penetrates through the slide seat 50b and then is in rotational connection with the inner wall of the control cavity through a bearing (not shown in the figure), the reciprocating screw rod 50d is in threaded connection with the slide seat 50b, and the micro motor 50e is electrically connected with the PID controller 10.
So set up, can directly control micro motor 50e work through PID controller 10, can drive reciprocal lead screw 50d when micro motor 50e is worked and rotate, at this moment, based on the screw thread transmission principle, can turn into the linear motion of slide 50b with the rotary motion of reciprocal lead screw 50d to make slide 50b along the axial (the horizontal direction) reciprocating motion of reciprocal lead screw 50d, in order to drive radiator fan 50a synchronous motion through slide 50 b. Meanwhile, as the reciprocating screw rod 50d is used as a transmission component, even if the micro motor 50e drives the reciprocating screw rod 50d to rotate towards the same direction all the time, the sliding seat 50b can also make the reciprocating movement along the axial direction of the reciprocating screw rod 50d, so that in practical application, the micro motor 50e only needs to adopt a common motor, and the micro motor 50e does not need to be controlled to rotate forwards or backwards independently during heat dissipation operation, thereby simplifying the control process.
In this embodiment, referring to fig. 4, in order to realize the human-computer interaction function and facilitate the relevant staff to view the current working state of the drying cabinet 100, the temperature control system further includes a touch screen 60, and the touch screen 60 is electrically connected to the PID controller 10, specifically, the touch screen 60 is connected to the RS485 communication interface of the PID controller 10. It can be understood that the touch screen 60 of this embodiment may be disposed on an outer wall of any side of the drying cabinet 100, as long as it is convenient for relevant workers to operate, for example, referring to fig. 1, the touch screen 60 of this embodiment is disposed on a front end surface of the drying cabinet 100, at this time, the relevant workers may set different instructions to the drying cabinet 100 through the touch screen 60, for example, set a drying temperature or a drying time of the drying cabinet 100, so as to implement human-computer interaction, and at the same time, the touch screen 60 may display a current working state of the drying cabinet 100 in real time, for example, display a current drying temperature inside a drying cavity in the drying cabinet 100, so that the relevant workers can know the current working state of the drying cabinet 100 in time.
Considering that there is an abnormal condition that the PID controller 10 fails in the practical application process, if the PID controller 10 fails and the heating module 40 is still in continuous operation, the temperature inside the drying chamber will continuously rise, which affects the usability of the drying cabinet 100. Therefore, referring to fig. 2 and fig. 4, the temperature control system of the present embodiment further includes a temperature cut-off switch 70, wherein the first temperature sensor 30 and the heating module 40 are electrically connected to the temperature cut-off switch 70. So set up, transmit temperature information to temperature break switch 70 in step through first temperature sensor 30, if the condition that PID controller 10 became invalid and heating module 40 still is continuously working, because heating module 40 will make the inside temperature of drying chamber continuously rise in continuous work, when the inside temperature of drying chamber exceeded predetermined temperature, temperature break switch 70 can direct control heating module 40's stop work to utilize temperature break switch 70 to play certain guard action.
In this embodiment, in order to remind relevant workers in time when the drying cabinet 100 is abnormal, please refer to fig. 2 and 4, the temperature control system further includes an alarm module 80, and the alarm module 80 is electrically connected to the PID controller 10, so as to control the alarm module 80 to send out an early warning signal through the PID controller 10. It is understood that the alarm module 80 of the present embodiment is an audible and visual alarm and/or a buzzer alarm.
As an optimal scheme, the alarm module 80 of this embodiment can send out different early warning signals according to different abnormal situations, so that related staff can timely know which abnormal situation the drying cabinet 100 belongs to. For example, when the temperature inside the drying cavity in the drying cabinet 100 is continuously low, the PID controller 10 controls the alarm module 80 to emit red light and a warning sound; when the temperature inside the drying chamber in the drying cabinet 100 is continuously high, the PID controller 10 controls the alarm module 80 to emit a yellow light and another kind of pre-alarm sound.
It should be noted that, referring to fig. 2 and fig. 4, the temperature control system of the present embodiment further includes a power supply 90 electrically connected to the PID controller 10, and the power supply 90 can provide electric energy required for normal operation for various electrical components. Preferably, the power supply 90 may be electrically connected to the PID controller 10 through an air switch, so as to control the connection and disconnection between the power supply 90 and the PID controller 10 through the air switch.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A drying cabinet temperature control system is used for controlling the drying temperature in a drying cabinet, the drying cabinet is provided with a control cavity and a drying cavity, and the drying cabinet temperature control system is characterized by comprising a PID controller, a solid-state relay, a first temperature sensor and a heating module;
PID controller and solid state relay all set up in the control intracavity, and first temperature sensor and heating module all set up in dry intracavity, and first temperature sensor and solid state relay all with PID controller electric connection, solid state relay and heating module electric connection.
2. The drying cabinet temperature control system of claim 1, wherein the temperature control system further comprises a heat dissipation module, the heat dissipation module comprises a heat dissipation fan, a sliding base and a linear driving member, the heat dissipation fan is disposed on the sliding base, the sliding base is slidably disposed on an inner wall of one side of the control cavity, heat dissipation holes are disposed on a side wall of the other side of the control cavity, and the linear driving member is used for driving the sliding base to reciprocate along a horizontal direction.
3. The drying cabinet temperature control system of claim 2, wherein the heat dissipation module further comprises a second temperature sensor, the second temperature sensor is disposed in the control cavity, and the second temperature sensor, the heat dissipation fan and the linear driving member are electrically connected to the PID controller.
4. The temperature control system of the drying cabinet according to claim 3, wherein the linear driving member comprises a reciprocating screw rod and a micro motor, one end of the reciprocating screw rod is in transmission connection with an output end of the micro motor, the other end of the reciprocating screw rod horizontally penetrates through the slide seat and then is in rotary connection with the inner wall of the control cavity, the reciprocating screw rod is in threaded connection with the slide seat, and the micro motor is electrically connected with the PID controller.
5. The drying cabinet temperature control system of claim 1, further comprising a touch screen electrically connected to the PID controller.
6. The drying cabinet temperature control system of claim 1, further comprising a temperature cut-off switch, wherein the first temperature sensor and the heating module are electrically connected to the temperature cut-off switch.
7. The drying cabinet temperature control system of claim 1, further comprising an alarm module, wherein the alarm module is electrically connected to the PID controller.
8. The drying cabinet temperature control system of claim 7, wherein the alarm module is an audible and visual alarm and/or a buzzer alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221161123.XU CN217604629U (en) | 2022-05-13 | 2022-05-13 | Drying cabinet temperature control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221161123.XU CN217604629U (en) | 2022-05-13 | 2022-05-13 | Drying cabinet temperature control system |
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| CN217604629U true CN217604629U (en) | 2022-10-18 |
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| CN202221161123.XU Active CN217604629U (en) | 2022-05-13 | 2022-05-13 | Drying cabinet temperature control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232219A (en) * | 2023-07-27 | 2023-12-15 | 海目星 (江门) 激光智能装备有限公司 | Drying oven and control method thereof |
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2022
- 2022-05-13 CN CN202221161123.XU patent/CN217604629U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232219A (en) * | 2023-07-27 | 2023-12-15 | 海目星 (江门) 激光智能装备有限公司 | Drying oven and control method thereof |
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