CN216310634U - Variable-frequency constant-temperature control system of aging room - Google Patents
Variable-frequency constant-temperature control system of aging room Download PDFInfo
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- CN216310634U CN216310634U CN202122861481.3U CN202122861481U CN216310634U CN 216310634 U CN216310634 U CN 216310634U CN 202122861481 U CN202122861481 U CN 202122861481U CN 216310634 U CN216310634 U CN 216310634U
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Abstract
The utility model discloses a variable-frequency constant-temperature control system of an aging room, belonging to the field of aging rooms, comprising a frequency converter control box, wherein the frequency converter control box comprises a box body, an air switch, a contactor, a frequency converter and a wiring terminal, a signal input end of the frequency converter is electrically connected with a temperature control probe, a control output end of the frequency converter is electrically connected with a heating tube component, the heating tube component comprises a first group of heating tubes, a second group of heating tubes and a third group of heating tubes, the first group of heating tubes is arranged on the front surface of the aging room, the second group of heating tubes is arranged on the side wall of one side of the aging room, the third group of heating tubes is arranged on the side wall of the other side of the aging room, three heating pipes are respectively arranged on the front surface and two side walls of the aging room, and the temperature sensor is matched with the frequency converter to monitor the internal temperature of the aging room, therefore, the power of the heating pipe is controlled, and the internal temperature of the aging room can be kept constant.
Description
Technical Field
The utility model relates to the technical field of aging rooms, in particular to a variable-frequency constant-temperature control system of an aging room.
Background
The aging room, also called a burning machine room, is a device for simulating a high-temperature and severe environment test for a high-performance electronic product, and is important experimental equipment for improving the stability and reliability of the product.
However, the temperature monitoring system of the existing aging room often has the following problems:
1. the internal temperature of the aging room is not heated uniformly.
2. The internal temperature of the aging room cannot be monitored in real time, and when the temperature is higher than a set value or lower than the set value, the internal temperature of the aging room cannot be automatically adjusted, and the temperature cannot be constant.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a variable-frequency constant-temperature control system of an aging room, which is characterized in that three heating pipes are respectively arranged on the front surface and two side walls of the aging room, and the internal temperature of the aging room is monitored by a temperature sensor matched with a frequency converter, so that the power of the heating pipes is controlled, the internal temperature of the aging room can be kept constant, and the problems in the background art are solved.
In order to achieve the purpose, the utility model provides the following technical scheme: the variable-frequency constant-temperature control system of the aging room comprises a frequency converter control box, wherein the frequency converter control box comprises a box body, an air switch, a contactor, a frequency converter and a wiring terminal, the box body is installed on the side wall of the aging room, the signal input end of the frequency converter is electrically connected with a temperature control probe, and the control output end of the frequency converter is electrically connected with a heating tube assembly;
the heating tube subassembly is including first group's heating tube, second group's heating tube and third group's heating tube, first group's heating tube is installed on the front in ageing room, second group's heating tube is installed on one side lateral wall in ageing room, third group's heating tube is installed on the opposite side lateral wall in ageing room, the output electric connection of contactor has radiator fan, radiator fan installs on the lateral wall in ageing room.
Preferably, air switch, contactor and converter are installed respectively to the inside of box, air switch passes through wire and contactor electric connection, contactor passes through binding post and converter electric connection.
Preferably, the temperature control probe is installed in the aging room, and the temperature control probe is of PT100 type.
Preferably, the first group of heating tubes, the second group of heating tubes and the third group of heating tubes are respectively provided with three heating tubes in each group, and the three heating tubes in each group are connected in a star shape.
Preferably, the contactor is a 2511 type contactor, the power of the frequency converter is 4KM, and the passing current of the air switch and the wiring terminal is 25A.
Preferably, the temperature control probe comprises a probe and a signal transmission line, the probe comprises a thermistor and a metal protective sleeve, the thermistor is installed inside the protective sleeve, one end of the signal transmission line is electrically connected with the thermistor, and the other end of the signal transmission line is electrically connected with the signal input end of the frequency converter through a wiring terminal.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a variable-frequency constant-temperature control system of an aging room, which measures the current ambient temperature through a temperature sensor PT100, and receives a transmission signal of the temperature sensor through a frequency converter, so that three groups of heating pipes can heat, the heating power can be controlled, the temperature can be kept in a constant state, and after the temperature exceeds the upper limit of the aging room, the inside of the aging room can be subjected to heat dissipation treatment through a cooling fan, and the aging quality of the frequency converter is effectively ensured.
Drawings
FIG. 1 is a block diagram of a thermostat control system of the present invention;
FIG. 2 is a distribution diagram of the heat pipe assembly of the present invention;
FIG. 3 is a schematic view of the installation structure of the aging room of the present invention;
FIG. 4 is a schematic view of a temperature probe according to the present invention;
fig. 5 is a constant temperature schematic block diagram of the present invention.
Reference numbers in the figures: 1. a box body; 2. a heating tube assembly; 3. a heat radiation fan; 4. a thermistor; 5. protecting the sleeve; 6. and a signal transmission line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a variable-frequency constant-temperature control system of an aging room as shown in figures 1-5, which comprises a frequency converter control box, wherein the frequency converter control box comprises a box body 1, an air switch, a contactor, a frequency converter and a wiring terminal, the box body 1 is arranged on the side wall of the aging room, the air switch, the contactor and the frequency converter are respectively arranged inside the box body 1, the air switch is electrically connected with the contactor through a lead, the contactor is electrically connected with the frequency converter through the wiring terminal, and the connection of the air switch, the contactor and the frequency converter can provide power supply on-off and protection effects for the whole system.
The signal input part and the control by temperature change probe electric connection of converter, the control by temperature change probe mounting is in the inside in ageing room, the control by temperature change probe adopts the PT100 model, through being connected control by temperature change probe and converter, make the converter can the received temperature signal, and then can drive heating tube subassembly 2 and carry out thermal treatment and drive radiator fan 3 and can carry out the thermal treatment, the control by temperature change probe is including probe and signal transmission line 6, the probe includes thermistor 4 and metal protective case 5, thermistor 4 installs in protective case 5's inside, signal transmission line 6's one end and thermistor 4 electric connection, signal transmission line 6's the other end passes through the signal input part electric connection of binding post with the converter, thermistor 4 is sensitive to the temperature, show different resistance values under the different temperatures.
The control output end of the frequency converter is electrically connected with the heating tube component 2, the heating tube component 2 comprises a first group of heating tubes, a second group of heating tubes and a third group of heating tubes, the first group of heating tubes is arranged on the front surface of the aging room, the second group of heating tubes is arranged on the side wall of one side of the aging room, the third group of heating tubes is arranged on the side wall of the other side of the aging room, the output end of the contactor is electrically connected with a radiating fan 3, the radiating fan 3 is arranged on the side wall of the aging room and is used for radiating heat after the temperature of the aging room exceeds the upper limit, the first group of heating tubes, the second group of heating tubes and the third group of heating tubes are respectively provided with three heating tubes, each group of three heating tubes is in star connection, the three groups of heating tubes are respectively arranged on the front surface, the left side and the right side of the aging room, and each group of three heating tubes are arranged, and further when the interior of the aging room is required to be heated, the temperature can be uniformly raised, and the heating efficiency can be improved.
The contactor adopts a 2511 type contactor, the power of a frequency converter is 4KM, and the passing current of an air switch and a wiring terminal is 25A.
When the temperature control device is used specifically, as shown in fig. 5, the current temperature of the internal environment of an aging room is measured through a temperature probe TP100, the current temperature is fed back to the frequency converter through a signal transmission line on the temperature probe, the frequency converter automatically changes the frequency and controls the power of the heating tube through a software PID algorithm according to the set temperature, the heating tube is controlled by the frequency converter to reduce the heating power when the temperature rises above a set value, if the temperature keeps rising trend all the time after the heating power is reduced, the external ventilation is automatically started for constant temperature after the system delay time is used, and the aging quality of the frequency converter is effectively ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Ageing room frequency conversion constant temperature control system, including the converter control box, its characterized in that: the frequency converter control box comprises a box body (1), an air switch, a contactor, a frequency converter and a wiring terminal, wherein the box body (1) is installed on the side wall of the aging room, the signal input end of the frequency converter is electrically connected with the temperature control probe, and the control output end of the frequency converter is electrically connected with the heating tube assembly (2);
heating tube subassembly (2) is including first group's heating tube, second group's heating tube and third group's heating tube, first group's heating tube is installed in the front in ageing room, second group's heating tube is installed on one side lateral wall in ageing room, third group's heating tube is installed on the opposite side lateral wall in ageing room, the output electric connection of contactor has radiator fan (3), radiator fan (3) are installed on the lateral wall in ageing room.
2. The aging room frequency conversion constant temperature control system of claim 1, wherein: air switch, contactor and converter are installed respectively to the inside of box (1), air switch passes through wire and contactor electric connection, the contactor passes through binding post and converter electric connection.
3. The aging room frequency conversion constant temperature control system of claim 1, wherein: the temperature control probe is installed in the aging room and adopts a PT100 model.
4. The aging room frequency conversion constant temperature control system of claim 1, wherein: the first group of heating tubes, the second group of heating tubes and the third group of heating tubes are respectively provided with three heating tubes in each group, and the three heating tubes in each group are connected in a star shape.
5. The aging room frequency conversion constant temperature control system of claim 1, wherein: the contactor adopts a 2511 type contactor, the power of the frequency converter is 4KM, and the passing current of the air switch and the wiring terminal is 25A.
6. The aging room frequency conversion constant temperature control system of claim 1, wherein: the temperature control probe comprises a probe body and a signal transmission line (6), the probe body comprises a thermistor (4) and a metal protective sleeve (5), the thermistor (4) is installed inside the protective sleeve (5), one end of the signal transmission line (6) is electrically connected with the thermistor (4), and the other end of the signal transmission line (6) is electrically connected with a signal input end of a frequency converter through a wiring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122861481.3U CN216310634U (en) | 2021-11-19 | 2021-11-19 | Variable-frequency constant-temperature control system of aging room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122861481.3U CN216310634U (en) | 2021-11-19 | 2021-11-19 | Variable-frequency constant-temperature control system of aging room |
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| Publication Number | Publication Date |
|---|---|
| CN216310634U true CN216310634U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122861481.3U Active CN216310634U (en) | 2021-11-19 | 2021-11-19 | Variable-frequency constant-temperature control system of aging room |
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| CN (1) | CN216310634U (en) |
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2021
- 2021-11-19 CN CN202122861481.3U patent/CN216310634U/en active Active
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