CN218213884U - Test device for resettable temperature protector with switch contacts - Google Patents
Test device for resettable temperature protector with switch contacts Download PDFInfo
- Publication number
- CN218213884U CN218213884U CN202222055563.3U CN202222055563U CN218213884U CN 218213884 U CN218213884 U CN 218213884U CN 202222055563 U CN202222055563 U CN 202222055563U CN 218213884 U CN218213884 U CN 218213884U
- Authority
- CN
- China
- Prior art keywords
- temperature
- module
- switch
- central control
- resettable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a test device for a resettable temperature protector with a switch contact, which relates to the technical field of detection equipment manufacturing, and comprises a power module, a central control module, a temperature adjusting module, a current adjusting module and a heating device, wherein the temperature adjusting module is respectively connected with the central control module and the heating device; the central control module is respectively connected with the heating device and the current regulation module. The utility model discloses automatic control test equipment opens and stops when can automated inspection temperature and electric current, reduces the manual work, improves detection efficiency and detection precision.
Description
Technical Field
The utility model relates to a technical field that check out test set made, in particular to but be used for having switch contact reset temperature protector's test device.
Background
At present, resettable temperature protectors are widely used in various industries, such as electric kettles, refrigerators and the like. Among them, the resettable temperature protector with switch contacts is the most common and popular due to its reliable performance, simple structure and low price. For a temperature protection device, the accuracy and the reliability of the action temperature of the temperature protection device are the keys for determining the protection device, a temperature control system and even the whole product or device, and especially for explosion-proof electrical equipment, the temperature protection is very important. This requires appropriate test equipment to automatically test the resettable temperature protection device multiple times and to monitor and record critical data.
At present, the testing equipment applied to the resettable temperature protector with the switch contact is simple, mostly only detects the temperature of the resettable temperature protection device during the circuit breaking, some testing equipment is manual reset, and the temperature value is manually recorded or the storage space of the resettable temperature protection device is used for storage.
According to the requirements of GB/T3836.9-2021, the resettable temperature protection device with the switch contact can break rated current for more than 5000 times, and according to the standard requirements, the resettable temperature protector not only has more parameters and more test times in an experiment, but also needs to test the real-time temperature when the resettable temperature protector breaks a circuit. Obviously, the current scheme of manually observing the temperature information of the test equipment and manually resetting the test equipment wastes time and labor, has low working efficiency and low detection precision, and cannot monitor the current.
Disclosure of Invention
The utility model provides a test device for but have switch contact reset temperature protector not only can the automated inspection electric current, and the real-time temperature when can also detecting the reset temperature protector open circuit effectively reduces artifically, improves detection efficiency and detection precision.
The utility model provides a test device for a resettable temperature protector with a switch contact, which comprises a power module, a central control module, a temperature regulation module, a current regulation module and a heating device, wherein the power module is respectively connected with the central control module, the temperature regulation module and the current regulation module; the temperature adjusting module is respectively connected with the central control module and the heating device, and the resettable temperature protector with a switch contact to be tested is respectively connected with the heating device and the current adjusting module; the central control module is respectively connected with the heating device and the current regulation module.
In an optional embodiment, the central control module includes a controller, an ammeter and a temperature meter, the controller is respectively connected with the ammeter and the temperature meter, the ammeter is connected with the current regulating module, and the temperature meter is connected with the heat generating device.
In an alternative embodiment, the temperature adjustment module includes a first varistor, a first switch, and a first fuse, one end of the first varistor is connected to the heat generating device, and the other end of the first varistor is connected to the power supply module; the one end of first switch with the device that generates heat links to each other, the other end of first switch with the one end of first fuse links to each other, the other end of first fuse links to each other with first fuse.
In an alternative embodiment, the central control module is further connected to the first switch.
In an optional embodiment, the current regulation module comprises a second varistor, a second switch and a second fuse, one end of the second varistor is connected with the power supply module, the other end of the second varistor is connected with one end of the ammeter, and the other end of the ammeter is connected with the resettable temperature protector to be tested, which is provided with a switch contact; one end of the second fuse is connected with one end of the second switch, the other end of the second switch is connected with the resettable temperature protector to be tested with the switch contact, and the other end of the second fuse is connected with the power supply module.
The utility model has the advantages that: the utility model discloses a test device for having switch contact's resettable temperature protector is equipped with current regulation module and central control module, can adjust the electric current of the return circuit that the resettable temperature protector with switch contact that awaits measuring belongs to through current regulation module, and store and show the real-time current value of the resettable temperature protector with switch contact, the real-time temperature value of generating heat and the test number of times of generating heat device that awaits measuring through central control module, and the break-make of control temperature regulation module; thereby can automated inspection and record temperature and electric current, automatic control device that generates heat opens and stops to when effectively reducing artifically, improve detection efficiency and detection precision.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the circuit of the present invention;
fig. 3 is a schematic circuit diagram of a power module according to the present invention;
fig. 4 is a schematic circuit diagram of the central control module according to the present invention;
fig. 5 is another schematic circuit diagram of the central control module according to the present invention;
fig. 6 is a schematic circuit diagram of the temperature adjustment module according to the present invention;
fig. 7 is a schematic circuit diagram of the medium current adjusting module of the present invention.
In the figure: 10-a central control module; 11-a current meter; 12-a temperature meter; 20-a resettable temperature protector with a switch contact to be tested; 30-a heat generating device.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to facilitate understanding of the present embodiment, the following description will discuss in detail a testing apparatus for a resettable temperature protector with switch contacts, according to the present invention.
Referring to fig. 1, the present embodiment provides a testing apparatus for a resettable temperature protector with a switch contact, which includes a power module, a central control module, a temperature adjustment module, a current adjustment module, and a heating device.
As shown in fig. 4, the central control module includes a controller, an ammeter, and a temperature meter. As shown in fig. 2, the central control module 10 is connected to the switch SB0, the fuse FU0, and the switch K1, respectively. The ammeter 11 is connected with the current regulation module, and the thermometer 12 is connected with the heating device 30.
In this embodiment, the ammeter is used to detect the current of the current adjusting module, and the thermometer is used to detect the temperature in the heat generating device. The heating device is an electric heater, an electric heating plate and an electric heating tube, and compared with the existing device adopting water bath heating as the heating device, the temperature control and adjustment are more convenient, rapid and accurate.
In this embodiment, the power module is connected to the central control module, the temperature adjustment module and the current adjustment module, respectively, and is configured to provide power to the central control module, the temperature adjustment module and the current adjustment module, respectively. As shown in fig. 3, the left side of the power module is an input section, and a fuse and a main switch K are provided. And three output ends, namely U0, U1 and U2, are arranged on the right side, wherein the U0 supplies power for the central control module, the U1 supplies power for the temperature regulation module, and the U2 supplies power for the current regulation module.
In this embodiment, the temperature adjusting module is respectively connected to the central control module and the heat generating device, and is configured to adjust the heat generating temperature of the heat generating device.
In this embodiment, the current adjusting module is connected to the resettable temperature protector to be tested, which has the switch contact, and is configured to adjust a current of a loop in which the resettable temperature protector to be tested, which has the switch contact, is located; the resettable temperature protector with the switch contact to be tested is also connected with the heating device, a testing station is arranged on the heating device, and the resettable temperature protector with the switch contact to be tested is arranged on the testing station, so that the resettable temperature protector with the switch contact to be tested can cut off a circuit when the temperature of the heating device reaches a preset temperature threshold value. The arrangement of the test station can facilitate the replacement of different workpieces to be tested.
In this embodiment, the central control module is connected to the heating device and the current regulation module, respectively, and is configured to store and display a real-time current value of the resettable temperature protector with the switch contact to be tested, a real-time heating temperature value of the heating device, and test times, and control on/off of the temperature regulation module.
The ammeter 11 is used for detecting a real-time current value of the resettable temperature protector 20 with the switch contact to be detected, and sending the real-time current value to the central control module 10 for storage and display;
and the temperature instrument 12 is used for detecting the real-time heating temperature value of the heating device 30 and sending the real-time heating temperature value to the central control module 10 for storage and display.
In specific implementation, the controller may be implemented by a single chip or a DSP programmable logic chip, for example, STM32 or MSP430.
The central control module 10 further includes a key module and a display module, which are respectively connected to the controller. For example, as shown in fig. 5, the peripheral circuits of the STM32 are connected to the ammeter a and the thermometer T, the driving circuit, the display module, the printing module, and the key module, respectively, the STM 32.
The key module can comprise a switch key and a test key, the switch key is pressed down, the central control module is started, and the test key is pressed down to enter an experiment process.
The temperature meter 12 is a temperature sensor, and the central control module 10 realizes the functions of parameter setting, data display and the like. Meanwhile, the controller is connected with the first switch K1, so that on-off control of the temperature adjusting module is automatically realized.
The embodiment can realize the automatic and repeated measurement of the temperature and the circuit current caused by the resettable temperature protector with the switch contact to be tested during the breaking action, and lays a foundation for the detection of the action accuracy and the reliability of the temperature protection device to be tested; the embodiment can be applied to the manufacturing and inspection fields of the resettable temperature protection device, and the detection accuracy and the detection efficiency can be greatly improved, so that the quality stability of the resettable temperature protector is improved and guaranteed.
Preferably, as shown in fig. 1 and 6, the temperature adjustment module includes a first varistor R1, a first switch K1, and a first fuse FU1, one end of the first varistor R1 is connected to the heat generating device 30, and the other end of the first varistor R1 is connected to the power supply module; one end of the first switch K1 is connected to the heating device 30, the other end of the first switch K1 is connected to one end of the first fuse FU1, and the other end of the first fuse FU1 is connected to the first fuse FU 1.
Here, first switch K1 is used for controlling the break-make between the device that generates heat and the power module, and when disconnection K1, the device that generates heat cuts off the power supply, and the last heating element that generates heat of the device that generates heat does not generate heat, realizes the self-cooling. When the first switch K1 is closed, the heating device is electrified, and a heating component on the heating device starts to heat, so that the temperature is increased. And adjusting the value of the first rheostat R1 to realize the adjustment of the maximum heating temperature of the heating device.
Further, the central control module is also connected with the first switch K1.
Specifically, K1 can adopt the contactor to use central control module to control its break-make, and then control the break-make of device that generates heat. Thus, the present embodiment achieves automatic control as compared to using manual on-off control.
Preferably, as shown in fig. 2 and 7, the current regulation module includes a second varistor R2, a second switch SB2 and a second fuse FU2, one end of the second varistor R2 is connected to the power supply module, the other end of the second varistor R2 is connected to one end of the ammeter, and the other end of the ammeter is connected to the resettable temperature protector 20 to be tested with a switch contact; one end of the second fuse FU2 is connected with one end of the second switch SB2, the other end of the second switch SB2 is connected with the resettable temperature protector 20 with the switch contact to be tested, and the other end of the second fuse FU2 is connected with the power module.
Specifically, the second varistor R2 is adjusted so as to adjust the current flowing through the resettable temperature protector to be tested, which has a switching contact, to reach the rated current.
The use principle of the embodiment is as follows:
before the test is started, a main switch K of the power supply module and a second switch SB2 of the current regulating module are closed, and according to the display of an ammeter, a second rheostat R2 is adjusted to enable the current of the current regulating module to reach the rated current of a resettable temperature protector with a switch contact. Then, the first switch K1 of the temperature regulating module is closed, the first rheostat R1 is adjusted, and the display of the thermometer indicates that the highest temperature of the heating device can reach at least 20% of the opening action temperature specified by the resettable temperature protector with the switch contact. The low temperature reset value of the central control module is then set, typically 20% below the closing operating temperature specified for a resettable temperature protector with switching contacts. Finally, the number of tests to be performed is entered in the central control module (5000). After the setting and adjustment are completed, the temperature of the device to be heated is reduced to be lower than the closing action temperature specified by the resettable temperature protection device, the second switch SB2 of the current regulation module is closed, the 'test' button of the central control module is pressed, and the first switch K1 of the temperature regulation module is closed, so that the device of the embodiment starts to automatically and repeatedly test the resettable temperature protection device with the switch contacts until the specified test times are reached.
After the test is started, the central control module monitors the real-time temperature of the heating device and the tested resettable temperature protection device in real time through the temperature instrument, simultaneously monitors the current of the current regulation module in real time, when the ammeter detects that the current of the current regulation module is rapidly reduced, the last effective current value and the temperature value are displayed on the panel, meanwhile, the test times are added and updated and displayed, the control system stores the data and automatically disconnects the first switch K1 of the temperature regulation module, the resettable temperature protection device is recovered to be closed along with the reduction of the temperature of the heating device, when the temperature of the heating device is reduced to a set temperature, the central control module automatically closes the first switch K1 of the temperature regulation module, and then a new test with the resettable temperature protector with a switch contact is started.
In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A test device for a resettable temperature protector with a switch contact is characterized by comprising a power supply module, a central control module, a temperature adjusting module, a current adjusting module and a heating device, wherein the power supply module is respectively connected with the central control module, the temperature adjusting module and the current adjusting module; the temperature adjusting module is respectively connected with the central control module and the heating device, and the resettable temperature protector with a switch contact to be tested is respectively connected with the heating device and the current adjusting module; the central control module is respectively connected with the heating device and the current regulating module.
2. A testing device for a resettable temperature protector with switch contacts as claimed in claim 1, wherein the central control module comprises a controller, an ammeter and a temperature meter, the controller being connected to the ammeter and the temperature meter respectively, the ammeter being connected to the current regulation module, and the temperature meter being connected to the heat generating device.
3. Test set for resettable temperature protectors with switching contacts according to claim 2, characterized in that the temperature regulation module comprises a first varistor (R1), a first switch (K1) and a first fuse (FU 1), one end of the first varistor (R1) being connected to the heat generating device and the other end of the first varistor (R1) being connected to the power supply module; one end of the first switch (K1) is connected with the heating device, the other end of the first switch (K1) is connected with one end of the first fuse (FU 1), and the other end of the first fuse (FU 1) is connected with the first fuse (FU 1).
4. Testing device for resettable temperature protectors with switch contacts according to claim 3, characterized in that the central control module is also connected to the first switch (K1).
5. The testing device for the resettable temperature protector with the switch contact as claimed in claim 2, wherein the current regulating module comprises a second rheostat (R2), a second switch (SB 2) and a second fuse (FU 2), one end of the second rheostat (R2) is connected with the power supply module, the other end of the second rheostat (R2) is connected with one end of the ammeter, and the other end of the ammeter is connected with the resettable temperature protector with the switch contact to be tested; the one end of second fuse (FU 2) with the one end of second switch (SB 2) links to each other, the other end of second switch (SB 2) with the temperature protector that can reset that awaits measuring to have the switch contact links to each other, the other end of second fuse (FU 2) with power module links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222055563.3U CN218213884U (en) | 2022-08-05 | 2022-08-05 | Test device for resettable temperature protector with switch contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222055563.3U CN218213884U (en) | 2022-08-05 | 2022-08-05 | Test device for resettable temperature protector with switch contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218213884U true CN218213884U (en) | 2023-01-03 |
Family
ID=84653386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222055563.3U Active CN218213884U (en) | 2022-08-05 | 2022-08-05 | Test device for resettable temperature protector with switch contacts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218213884U (en) |
-
2022
- 2022-08-05 CN CN202222055563.3U patent/CN218213884U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101363895B (en) | Method and system for detecting DC loop fault | |
| US11046188B2 (en) | System for determining an indicator of an internal leakage current of a battery entity | |
| CN103278766B (en) | A kind of method of testing load switch reliability and system thereof | |
| CN1879274B (en) | Overheat protection device and electrical system having same | |
| CN101793943B (en) | Intelligent type test system for service life of fuses | |
| CN201654166U (en) | Intelligent fuse life testing system | |
| CN218213884U (en) | Test device for resettable temperature protector with switch contacts | |
| CN110031707A (en) | The RTA reliability test assembly and test method of NTC thermistor | |
| CN103163396A (en) | Small fuse detecting method for nuclear plant | |
| CN206400077U (en) | battery discharge tester | |
| CN201335870Y (en) | DC circuit fault detection system | |
| CN110850316B (en) | Direct current resistance tester and method for all single batteries in battery pack | |
| CN109633338A (en) | A kind of intelligent surge protector heat stabilization test instrument | |
| CN115344028A (en) | Test device and method for resettable temperature protectors with switching contacts | |
| CN205581677U (en) | High tension switchgear's dimension accuse device | |
| CN109618423A (en) | Portable test instrument automatic heating device | |
| CN115313654A (en) | Transformer substation monitoring device | |
| CN203720644U (en) | Service lifetime testing device used for contact of temperature limiter | |
| CN106646264A (en) | Battery discharge tester | |
| CN203037819U (en) | Platform for automatically testing life of temperature relay | |
| CN108279342B (en) | Different voltage performance test system of component | |
| CN203745494U (en) | Milliampere current generator | |
| CN219179516U (en) | Resistance wire life test device and system | |
| CN202928913U (en) | Electrothermal alloy quick service life test device | |
| CN213750225U (en) | Relay electrical life test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |