CN215338601U - Ring main unit with intelligent infrared temperature measurement contact device - Google Patents
Ring main unit with intelligent infrared temperature measurement contact device Download PDFInfo
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- CN215338601U CN215338601U CN202121039427.4U CN202121039427U CN215338601U CN 215338601 U CN215338601 U CN 215338601U CN 202121039427 U CN202121039427 U CN 202121039427U CN 215338601 U CN215338601 U CN 215338601U
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- ring main
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Abstract
The utility model provides a ring main unit with an intelligent infrared temperature measurement contact device, which comprises an infrared temperature measurement device and an adjustable mounting bracket, wherein the infrared temperature measurement device is arranged on the ring main unit; the adjustable mounting bracket is mounted in a cable chamber of the ring main unit; the infrared temperature measuring device comprises a device host and a non-contact infrared temperature measuring sensor; a non-contact infrared temperature measuring sensor is arranged in the cable chamber corresponding to each cable; the device host is arranged on an instrument room of the ring main unit; the non-contact infrared temperature measuring sensor is arranged on the adjustable mounting bracket and is aligned to the surface of the cable; the non-contact infrared temperature measuring sensor is electrically connected with the device host. The utility model has the advantages that: the cable temperature measuring device can improve the detection efficiency of the cable and improve the measurement precision of the temperature of the cable.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of ring main units, in particular to a ring main unit with an intelligent infrared temperature measurement contact device.
[ background of the utility model ]
The ring main unit is an important component of electric power work, and is a group of electric equipment of transmission and distribution, which is arranged in a metal or non-metal insulating cabinet body or made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, and has the advantages of simple structure, small volume, capability of providing power supply parameters, power supply safety and the like. In the ring main unit, high voltage connection needs to be realized through a cable; because the part of cable conductor and cable plug connection causes easily to generate heat (for example, receive the manufacturing process influence, when the junction pastes and connects the cooperation and have the deviation, electrically conductive area reduces correspondingly, will lead to generating heat when the load increases), and in case the high temperature that generates heat just brings the incident easily, consequently needs to measure the temperature of cable conductor. The existing method is that when an inspector inspects the ring main unit, the inspector manually measures the temperature of the cable, so that the detection efficiency is low, and the temperature measurement precision is low. In view of the above problems, the present inventors have conducted extensive studies and have made the present invention.
[ Utility model ] content
The utility model aims to solve the technical problem of providing a ring main unit with an intelligent infrared temperature measurement contact device, which realizes real-time acquisition and display of the temperature of a cable in the ring main unit, enables an inspector to visually and rapidly check the temperature of each cable in the ring main unit, and can improve the detection efficiency of the cable and the measurement precision of the temperature of the cable.
The utility model is realized by the following steps: a ring main unit with an intelligent infrared temperature measurement contact device comprises an infrared temperature measurement device and an adjustable mounting bracket;
the adjustable mounting bracket is mounted in a cable chamber of the ring main unit; the infrared temperature measuring device comprises a device host and a non-contact infrared temperature measuring sensor; the non-contact infrared temperature measuring sensor is arranged in the cable chamber corresponding to each cable;
the device host is arranged on an instrument room of the ring main unit; the non-contact infrared temperature measuring sensor is arranged on the adjustable mounting bracket and is aligned to the surface of the cable; the non-contact infrared temperature measuring sensor is electrically connected with the device host.
Further, the temperature measurement object distance ratio of the non-contact infrared temperature measurement sensor is 1: 10.
further, the adjustable mounting bracket comprises vertical adjusting plates arranged at two sides in the cable chamber and a horizontal adjusting plate arranged between the two vertical adjusting plates;
first bar hole has been seted up along vertical direction interval to vertical regulating plate, second bar hole has been seted up along the horizontal direction interval to level adjusting plate first locking round hole has been seted up at level adjusting plate's both ends, just level adjusting plate's both ends through first locking spare with vertical regulating plate locking is paid and is connected.
Furthermore, the non-contact infrared temperature measurement sensor comprises a sensor shell, a temperature measurement probe fixedly arranged on the front end face of the sensor shell, an adjusting screw fixedly arranged on the rear end face of the sensor shell, and a first nut and a second nut which are sleeved on the adjusting screw; the temperature measuring probe is aligned with the position where the cable is connected with the cable plug; the adjusting screw is locked on the level adjusting plate through the first nut and the second nut.
Furthermore, the adjustable mounting bracket also comprises a vertical connecting plate connected with the vertical adjusting plate, and the vertical adjusting plate and the vertical connecting plate are arranged perpendicularly to each other; and a second locking round hole is formed in the vertical connecting plate, and the vertical connecting plate is connected with the side wall of the cable chamber through a second locking piece in a locking manner.
Further, vertical regulating plate is provided with one along vertical direction first bar hole, level (l) ing board is provided with two rows along the horizontal direction second bar hole.
Further, the device host comprises a host shell, a microprocessor, a display and a memory; the microprocessor and the memory are fixedly arranged inside the host shell, and the display is fixedly arranged on the outer surface of the host shell; the display and the memory are both electrically connected with the microprocessor.
Furthermore, the device host also comprises an operation button arranged on the outer surface of the host shell; the operating button is electrically connected with the microprocessor.
Furthermore, the device host also comprises a wiring terminal; the wiring terminal is electrically connected with the microprocessor; the wiring terminal at least comprises a sensor interface and a power interface.
Furthermore, the wiring terminal also comprises a communication interface and an alarm output interface;
the communication interface is an RS485 communication interface; the alarm output interface is electrically connected with the display through a relay.
The utility model has the advantages that: the position of the non-contact infrared temperature measuring sensor arranged on the adjustable mounting bracket is adjusted by adopting the adjustable mounting bracket, so that the non-contact infrared temperature measuring sensor is accurately aligned to the surface of the cable, and the accurate measurement of the temperature of the cable is facilitated; the temperature of the cable is collected in real time through the non-contact infrared temperature measuring sensor, the collected temperature data are transmitted to the device host, the collected temperature data are displayed by the device host, the temperature of each cable in the ring main unit can be visually and rapidly checked by patrol personnel, and the detection efficiency of the cable and the measurement precision of the temperature of the cable can be improved.
[ description of the drawings ]
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a ring main unit with an intelligent infrared temperature measurement contact device according to the present invention;
fig. 2 is a schematic structural diagram of the ring main unit according to the present invention when no cable is plugged;
FIG. 3 is a schematic view showing the structure of a level-adjusting plate according to the present invention;
FIG. 4 is a schematic view showing a connection structure of a vertical adjustment plate and a horizontal adjustment plate according to the present invention;
FIG. 5 is a schematic view of the connection of the vertical connection plate to the side wall of the cable compartment according to the present invention;
FIG. 6 is a schematic structural diagram of a non-contact infrared temperature sensor according to the present invention;
FIG. 7 is a schematic view of a display area on the display according to the present invention;
FIG. 8 is a schematic block diagram of a device host of the present invention;
fig. 9 is a schematic block diagram of an external power supply apparatus in the present invention.
Description of reference numerals:
100-ring main unit, 101-cable chamber, 200-cable line, 201-cable plug, 1-infrared temperature measuring device, 11-device main unit, 111-main unit shell, 112-microprocessor, 113-display, 1131-display area, 114-memory, 115-operation button, 116-connection terminal, 1161-sensor interface, 1162-power interface, 1163-communication interface, 1164-alarm output interface, 12-non-contact infrared temperature measuring sensor, 121-sensor shell, 122-temperature measuring probe, 123-adjusting screw, 124-first nut, 125-second nut, 2-adjustable mounting bracket, 21-vertical adjusting plate, 211-first strip-shaped hole, 22-horizontal adjusting plate, 221-a second strip-shaped hole, 222-a first locking round hole, 23-a first locking piece, 231-a first screw, 232-a third nut, 24-a vertical connecting plate, 241-a second locking round hole, 25-a second locking piece, 251-a second screw, 252-a fourth nut, 3-a relay, 4-an external power supply device, 41-a solar panel assembly, 42-a storage battery pack, 43-a charge-discharge controller and 44-an inverter.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 9, a ring main unit 100 with an intelligent infrared temperature measurement contact device according to a preferred embodiment of the present invention includes an infrared temperature measurement device 1 and an adjustable mounting bracket 2;
the adjustable mounting bracket 2 is mounted in a cable chamber 101 of the ring main unit 100; the infrared temperature measuring device 1 comprises a device host 11 and a non-contact infrared temperature measuring sensor 12; the non-contact infrared temperature measuring sensor 12 is arranged in the cable chamber 101 corresponding to each cable wire 200;
the device main unit 11 is installed on an instrument room (not shown) of the ring main unit 100; the non-contact infrared temperature measuring sensor 12 is arranged on the adjustable mounting bracket 2, and the non-contact infrared temperature measuring sensor 12 is aligned to the surface of the cable 200; the non-contact infrared temperature measuring sensor 12 is electrically connected with the device host 11.
When the ring main unit 100 is used specifically, the position of the non-contact infrared temperature measuring sensor 12 mounted on the adjustable mounting bracket 2 is adjusted through the adjustable mounting bracket 2, so that the non-contact infrared temperature measuring sensor 12 is accurately aligned to the surface of the cable 200, and the accurate measurement of the temperature of the cable 200 is facilitated; in the in-process of work, gather in real time the temperature of cable conductor 200 through non-contact infrared temperature sensor 12 to the temperature data transmission who will gather gives device host computer 11, shows the temperature data of gathering by device host computer 11, and the temperature of each cable conductor 200 in the ring main unit 100 can directly perceivedly, look over fast for the personnel of patrolling and examining, can improve the detection efficiency to cable conductor 200 and improve the measurement accuracy of cable conductor 200 temperature.
In the specific implementation of the utility model, the cable chamber 101 at least comprises a wire-incoming cable chamber for high-voltage power access and a PT cabinet for converting high-voltage power into low-voltage power, and meanwhile, since three cables 200 are required to be correspondingly arranged for high-voltage three-phase power, the utility model can realize effective monitoring of all cables 200 in the ring main unit 100 by arranging a non-contact infrared temperature measurement sensor 12 for real-time temperature measurement on each cable 200, thereby improving the detection efficiency of the cables 200 and avoiding the problems of possible missing measurement and the like in manual measurement.
In the embodiment of the present invention, the non-contact infrared temperature sensor 12 has a temperature measurement object distance ratio of 1: 10. the temperature measurement object distance ratio of the non-contact infrared temperature measurement sensor 12 is designed to be 1: 10, the temperature of the contact point part can be accurately measured while ensuring a safe distance. In the specific implementation of the utility model, the temperature measured by the non-contact infrared temperature measuring sensor 12 is in the range of-20 to 150 ℃, so that the actual measurement requirement can be better met.
In the embodiment of the present invention, the adjustable mounting bracket 2 includes vertical adjusting plates 21 installed at both sides in the cable chamber 101 and a horizontal adjusting plate 22 installed between the vertical adjusting plates 21;
the vertical adjusting plate 21 is provided with first strip-shaped holes 211 at intervals along the vertical direction, and the horizontal adjusting plate 22 is provided with second strip-shaped holes 221 at intervals along the horizontal direction; first locking round holes 222 are formed in two ends of the horizontal adjusting plate 22, and two ends of the horizontal adjusting plate 22 are connected with the vertical adjusting plate 21 through first locking pieces 23 in a locking mode. Wherein, the first locking member 23 may include a first screw 231 and a third nut 232, and the first screw 231 and the third nut 232 cooperate to lock the two ends of the horizontal adjusting plate 22 to the vertical adjusting plate 21. The first strip-shaped hole 211 is formed in the vertical adjusting plate 21 in the vertical direction, so that the horizontal adjusting plate 22 can be adjusted up and down through the first strip-shaped hole 211 when the infrared temperature measuring sensor is used specifically, and the mounted non-contact infrared temperature measuring sensor 12 is located at a required height position; through set up second bar hole 221 along the horizontal direction on level adjusting plate 22 for when specifically using, can realize carrying out horizontal position control to non-contact infrared temperature sensor 12 through second bar hole 221, guarantee that non-contact infrared temperature sensor 12 can aim at the contact position of cable conductor 200.
In the embodiment of the present invention, in order to better realize adjustment, the first bar-shaped holes 211 are distributed on the vertical adjustment plate 21 at equal intervals, and the first bar-shaped holes 211 on two sides are symmetrically arranged; the second bar-shaped holes 221 are distributed on the level adjustment plate 22 at equal intervals.
In the embodiment of the present invention, the non-contact infrared temperature measuring sensor 12 includes a sensor housing 121, a temperature measuring probe 122 fixedly disposed on a front end surface of the sensor housing 121 (in a specific implementation, the temperature measuring probe 122 is fixedly disposed at a middle position of the front end surface of the sensor housing 121), an adjusting screw 123 fixedly disposed on a rear end surface of the sensor housing 121, and a first nut 124 and a second nut 125 sleeved on the adjusting screw 123; the temperature measuring probe 122 is aligned with the position where the cable wire 200 is connected with the cable plug 201; the adjusting screw 123 is fastened to the level adjusting plate 22 by the first nut 124 and the second nut 125. Because the hookup location department of cable conductor 200 and cable plug 201 generates heat most easily, and generate heat the most seriously, make temperature probe 122 aim at the hookup location of cable conductor 200 and cable plug 201 through the setting, can guarantee that what measure is the highest temperature of cable conductor 200, and then help patrolling and examining personnel to judge whether there is the risk of incident according to the highest temperature of cable conductor 200, guarantee that cable conductor 200 is safe in utilization. The front and rear positions of the temperature probe 122 can be adjusted by the cooperation of the adjusting screw 123, the first nut 124 and the second nut 125, so that the temperature probe 122 can accurately measure the temperature of the joint part.
According to the utility model, the temperature measuring probe 122 can be accurately adjusted through the mutual matching of the vertical adjusting plate 21, the horizontal adjusting plate 22 and the adjusting screw 123, so that the temperature measuring object distance ratio of the non-contact infrared temperature measuring sensor 12 is adjusted to be 1: 10, the purpose of accurately measuring the temperature of the contact part under the premise of ensuring the safe distance is achieved.
In the embodiment of the present invention, the adjustable mounting bracket 2 further includes a vertical connecting plate 24 connected to the vertical adjusting plate 21, and the vertical adjusting plate 21 and the vertical connecting plate 24 are arranged perpendicular to each other; the vertical connecting plate 24 is provided with a second locking round hole 241 for realizing locking connection, and the vertical connecting plate 24 is connected with the side wall of the cable chamber 101 through a second locking piece 25. The second locking member 25 may include a second screw 251 and a fourth nut 252, and the vertical connecting plate 24 is locked on the sidewall of the cable chamber 101 by the cooperation of the second screw 251 and the fourth nut 252. The vertical adjusting plate 21 is fixedly locked on the side wall of the cable chamber 101 through the vertical connecting plate 24, so that the supporting strength of the whole adjustable mounting bracket 2 can be improved. In the implementation of the present invention, the vertical adjusting plate 21, the horizontal adjusting plate 22 and the vertical connecting plate 24 are made of metal plates to ensure sufficient supporting strength.
In the embodiment of the present invention, a row of the first strip-shaped holes 211 is disposed in the vertical adjusting plate 21 along the vertical direction, so as to adjust the height position as required; the two rows of the second strip-shaped holes 221 are formed in the level adjustment plate 22 along the horizontal direction, and the height of the non-contact infrared temperature measurement sensor 12 can be further conveniently adjusted by the two rows of the second strip-shaped holes 221, for example, when the height position of the non-contact infrared temperature measurement sensor 12 is higher, the non-contact infrared temperature measurement sensor 12 can be locked on the next row of the second strip-shaped holes 221; when the height position of the non-contact infrared temperature sensor 12 is lower, the non-contact infrared temperature sensor 12 can be locked on the second strip-shaped hole 221 in the upper row.
In the embodiment of the present invention, the device host 11 includes a host housing 111, a microprocessor 112, a display 113, and a memory 114; the microprocessor 112 and the memory 114 are fixedly arranged inside the host casing 111, and the display 113 is fixedly arranged on the outer surface of the host casing 111; the display 113 and the memory 114 are electrically connected to the microprocessor 112. During specific work, when the non-contact infrared temperature measuring sensor 12 transmits the acquired temperature data of each cable wire 200 to the microprocessor 112, the microprocessor 112 displays the temperature data through the display 113 and stores the temperature data in the memory 114.
In the embodiment of the present invention, the display 113 has a plurality of display areas 1131, so that inspection personnel can conveniently view the display areas. In specific implementation, a plurality of display areas 1131, such as a contact temperature display area, an application description display area, an alarm description display area, a relay state display area, a system time display area, an alarm description display area, an alarm contact number display area, an alarm time display area, an over-temperature alarm temperature display area, or an alarm cumulative time display area, may be provided on the display 113.
In the embodiment of the present invention, for convenience of installation and use in the ring main unit 100, the size of the main unit housing 111 is 47mm in length, 36mm in width, and 56mm in height.
In the embodiment of the present invention, the device host 11 further includes a plurality of operation buttons 115 disposed on an outer surface of the host housing 111; the operation button 115 is electrically connected to the microprocessor 112. In specific use, the operation button 115 may be used to perform related operations such as inquiry and setting.
In the embodiment of the present invention, the device host 11 further includes a connection terminal 116; the connection terminal 116 is electrically connected to the microprocessor 112; the connection terminal 116 at least includes a sensor interface 1161 and a power interface 1162; the sensor interface 1161 is configured to connect to the non-contact infrared temperature measuring sensor 12, so as to transmit temperature data acquired by the non-contact infrared temperature measuring sensor 12 to the microprocessor 112; the power interface 1162 is used for connecting a power supply to supply power.
In the embodiment of the present invention, the connection terminal 116 further includes a communication interface 1163 and an alarm output interface 1164; the communication interface 1163 is used for realizing a communication function, and the alarm output interface 1164 is used for realizing an alarm function;
the communication interface 1163 is an RS485 communication interface, and response speed can be improved by adopting the RS485 communication interface; the alarm output interface 1164 is electrically connected to the display 113 through the relay 3. During specific work, when the acquired temperature value of the cable 200 exceeds a set alarm value, the relay 3 can be controlled to be switched on and alarm information can be output on the display 113.
In the embodiment of the present invention, the ring main unit 100 further includes an external power supply device 4 connected to the power interface 1162, so as to supply power to the device host 11 and the non-contact infrared temperature measuring sensor 12.
In the embodiment of the present invention, the external power supply device 4 includes a solar panel assembly 41, a storage battery pack 42 and a charge/discharge controller 43, the solar panel assembly 41 is disposed on the top of the ring main unit 100, and the storage battery pack 42 and the charge/discharge controller 43 are both disposed inside the ring main unit 100; the solar cell panel assembly 41 is electrically connected with the charge and discharge controller 43, and the charge and discharge controller 43 is electrically connected with the storage battery pack 42; in a specific implementation, the external power supply device 4 may further include an inverter 44, and the inverter 44 is electrically connected to the charge/discharge controller 43. Among them, the solar panel assembly 41 may employ a high-efficiency mono/polycrystalline silicon wafer.
When the external power supply device 4 of the present invention is in operation, when sunlight irradiates the solar panel assembly 41, the charge/discharge controller 43 converts the solar energy collected by the solar panel assembly 41 into electric energy and stores the electric energy in the storage battery 42; meanwhile, the charging and discharging controller 43 controls the storage battery pack 42 to discharge, so that the device host 11 and the non-contact infrared temperature measuring sensor 12 are powered. The device main machine 11 and the non-contact infrared temperature measurement sensor 12 are powered by solar power generation, so that stable power supply can be realized, and the device has the advantages of energy conservation and environmental protection.
Claims (10)
1. The utility model provides a looped netowrk cabinet with infrared temperature measurement contact device of intelligence which characterized in that: comprises an infrared temperature measuring device and an adjustable mounting bracket;
the adjustable mounting bracket is mounted in a cable chamber of the ring main unit; the infrared temperature measuring device comprises a device host and a non-contact infrared temperature measuring sensor; the non-contact infrared temperature measuring sensor is arranged in the cable chamber corresponding to each cable;
the device host is arranged on an instrument room of the ring main unit; the non-contact infrared temperature measuring sensor is arranged on the adjustable mounting bracket and is aligned to the surface of the cable; the non-contact infrared temperature measuring sensor is electrically connected with the device host.
2. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 1, wherein: the temperature measurement object distance ratio of the non-contact infrared temperature measurement sensor is 1: 10.
3. the ring main unit with the intelligent infrared temperature measurement contact device according to claim 1, wherein: the adjustable mounting bracket comprises vertical adjusting plates arranged on two sides in the cable chamber and a horizontal adjusting plate arranged between the two vertical adjusting plates;
the vertical adjusting plate is provided with first strip-shaped holes at intervals along the vertical direction, and the horizontal adjusting plate is provided with second strip-shaped holes at intervals along the horizontal direction; first locking round holes are formed in the two ends of the horizontal adjusting plate, and the two ends of the horizontal adjusting plate are connected with the vertical adjusting plate through first locking pieces in a locking mode.
4. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 3, wherein: the non-contact infrared temperature measuring sensor comprises a sensor shell, a temperature measuring probe fixedly arranged on the front end face of the sensor shell, an adjusting screw fixedly arranged on the rear end face of the sensor shell, and a first nut and a second nut which are sleeved on the adjusting screw; the temperature measuring probe is aligned with the position where the cable is connected with the cable plug; the adjusting screw is locked on the level adjusting plate through the first nut and the second nut.
5. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 3, wherein: the adjustable mounting bracket also comprises a vertical connecting plate connected with the vertical adjusting plate, and the vertical adjusting plate and the vertical connecting plate are arranged perpendicularly to each other; and a second locking round hole is formed in the vertical connecting plate, and the vertical connecting plate is connected with the side wall of the cable chamber through a second locking piece in a locking manner.
6. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 3, wherein: the vertical adjusting plate is provided with one row of first strip-shaped holes along the vertical direction, and the horizontal adjusting plate is provided with two rows of second strip-shaped holes along the horizontal direction.
7. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 1, wherein: the device host comprises a host shell, a microprocessor, a display and a memory; the microprocessor and the memory are fixedly arranged inside the host shell, and the display is fixedly arranged on the outer surface of the host shell; the display and the memory are both electrically connected with the microprocessor.
8. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 7, wherein: the device host also comprises an operation button arranged on the outer surface of the host shell; the operating button is electrically connected with the microprocessor.
9. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 7, wherein: the device host also comprises a wiring terminal; the wiring terminal is electrically connected with the microprocessor; the wiring terminal at least comprises a sensor interface and a power interface.
10. The ring main unit with the intelligent infrared temperature measurement contact device according to claim 9, wherein: the wiring terminal also comprises a communication interface and an alarm output interface;
the communication interface is an RS485 communication interface; the alarm output interface is electrically connected with the display through a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039427.4U CN215338601U (en) | 2021-05-14 | 2021-05-14 | Ring main unit with intelligent infrared temperature measurement contact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039427.4U CN215338601U (en) | 2021-05-14 | 2021-05-14 | Ring main unit with intelligent infrared temperature measurement contact device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338601U true CN215338601U (en) | 2021-12-28 |
Family
ID=79546250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121039427.4U Active CN215338601U (en) | 2021-05-14 | 2021-05-14 | Ring main unit with intelligent infrared temperature measurement contact device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338601U (en) |
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2021
- 2021-05-14 CN CN202121039427.4U patent/CN215338601U/en active Active
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