CN217768841U - Digital display type leakage protection plug - Google Patents
Digital display type leakage protection plug Download PDFInfo
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- CN217768841U CN217768841U CN202221586152.0U CN202221586152U CN217768841U CN 217768841 U CN217768841 U CN 217768841U CN 202221586152 U CN202221586152 U CN 202221586152U CN 217768841 U CN217768841 U CN 217768841U
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- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000012360 testing method Methods 0.000 claims description 23
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000565 sealant Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000012945 sealing adhesive Substances 0.000 description 1
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Abstract
The utility model discloses a digital display type earth leakage protection plug, include: a front cover, a rear cover and a base; an automatic switching-on and switching-off mechanism is arranged on the built-in circuit board; the circuit board still is equipped with: a zero sequence current transformer and a current transformer; the first lead and the second lead both penetrate through the zero sequence current transformer; the second lead passes through the zero sequence current transformer after passing through the current transformer; the circuit board is electrically provided with a current detection module, a voltage detection module and a metering module; the current detection module and the voltage detection module are electrically connected to the metering module; the digital display type leakage protection plug is also provided with a display screen; the display screen is electrically connected to the circuit board; the circuit board is also provided with a residual current detection module for detecting and checking the currents in the first lead and the second lead; the current detection module is electrically connected to the residual current detection module. The digital display type leakage protection plug can accurately detect the plug leakage condition, and can cut off the power supply to the plug when the plug leaks electricity, and can also observe the running condition of the plug.
Description
Technical Field
The utility model relates to a technical field of earth leakage protection plug, concretely relates to digital display type earth leakage protection plug.
Background
The plug is a structure that connects an electric appliance and a power source to supply power to the power source. The existing plug is simple in structure, only has a current transfer function, and cannot accurately detect the electric leakage condition of the plug, so that the plug cannot be powered off when the plug is in electric leakage, and the plug cannot be powered on or powered off by remote operation of a user. Simultaneously, the inside electric property simple structure of current plug can't supply the user to implement the behavior of knowing the plug, is unfavorable for the user to know the safe in utilization condition of domestic plug like this.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
To above current plug simple structure, only possess the current transfer function, unable accurate detection plug electric leakage condition to unable outage operation is carried out when the plug electric leakage, also can not supply user remote operation to carry out the break-make electricity, and current inside electrical structure of plug is simple, can't supply the user to implement the behavior of knowing the plug, is unfavorable for the problem that the user knows the safe in utilization condition of domestic plug like this, and this application provides a digital display type electric leakage protection plug.
2. Technical scheme
In order to solve the above problem, the utility model provides a technical scheme does:
a digital display type earth leakage protection plug comprising: a front cover, a rear cover and a base; the front cover, the rear cover and the base are fixedly connected into a whole; the base is positioned between the front cover and the rear cover; the base and the front cover jointly form an installation space; the back cover is provided with an N pole pin, an L pole pin and a ground wire pin which are used for inserting a socket of equipment; a circuit board is arranged in the mounting space; the rear cover is provided with an N-pole adapter, an L-pole adapter and a ground wire adapter; the N-pole pin is connected to the circuit board and the N-pole adapter through a first lead wire; the L pole pin is connected to the circuit board and the L pole adapter through a second lead wire; the ground wire pin is connected to the circuit board and the ground wire adapter through a third lead wire; the circuit board is provided with an automatic switching-on and switching-off mechanism for switching off the N-pole adapter and the L-pole adapter when the currents in the first lead and the second lead are abnormal; the first conducting wire and the second conducting wire are electrically connected to the electrical input end of the automatic switching-on/off mechanism; the circuit board is electrically connected to the electrical output end of the automatic switching-on and switching-off mechanism; the circuit board still is equipped with: the current transformer is used for detecting the current stability in the first wire and the second wire; the first lead and the second lead both penetrate through the zero sequence current transformer; the second lead passes through the zero sequence current transformer after passing through the current transformer; the circuit board is electrically provided with a current detection module for detecting current values in the first lead and the second lead, a voltage detection module for detecting voltage values in the first lead and the second lead and a metering module for calculating the voltage values and the current values and calculating the power consumption and the line leakage value of the equipment; the current detection module and the voltage detection module are electrically connected to the metering module; the digital display type leakage protection plug is also provided with a display screen for displaying the current value, the voltage value, the power consumption and the leakage value of the first lead and the second lead in real time; the display screen is electrically connected to the circuit board; the circuit board is also provided with a residual current detection module for detecting and checking the currents in the first lead and the second lead; the current detection module is electrically connected to the residual current detection module; and the residual current detection module is electrically connected to the automatic switching-on/off mechanism.
Furthermore, the circuit board is also electrically provided with a switch for switching display data of the display screen; the front cover is also provided with a switching button for switching display data of the display screen; the switching button is connected with the switching switch.
Further, the display screen is fixed to the circuit board; the front cover is formed with a viewing window for a user to view the display screen.
Furthermore, the display screen is electrically inserted into the circuit board through a plurality of pins; a pressing step is formed on one side of the display screen, which is far away from the circuit board; the edge of the observation window is tightly pressed on the press-fitting step; a sealing glue layer for sealing the mounting gap between the observation window and the display screen is arranged on the press mounting step; part of the display screen extends into the viewing window.
Furthermore, a manual reset button for pressing the automatic switching-on and switching-off mechanism is arranged on the front cover; the manual reset button passes through a through hole formed by the circuit board and contacts a reset switch of the automatic switching-on/off mechanism.
Furthermore, a test button is arranged on the front cover; the test button is connected with a test switch for performing a switching-on and switching-off test; the test switch is electrically connected to the residual current monitoring module.
Furthermore, the N-pole adapter, the L-pole adapter and the ground wire adapter are electrically connected to external equipment through connecting wires respectively; the rear cover is provided with three supporting convex ribs which are respectively used for supporting the end parts of the three connecting wires; the support ribs are formed with grooves for connecting ends of the wires.
Furthermore, the rear cover is also provided with a limiting shell used for gathering the three connecting wires together.
Furthermore, a pressing block used for pressing and limiting the connecting lead is arranged in the rear cover.
Furthermore, one side of the pressing block, which is used for contacting and connecting the lead, is an arc-shaped concave surface; a pressing convex part for pressing the connecting lead is arranged in the arc concave surface; the pressing convex part is made of rubber material and is formed with a pressing surface with grains.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model provides a digital display type earth leakage protection plug can the accurate detection plug electric leakage condition to cut off the power supply to the plug when the plug electric leakage. Meanwhile, the user can also know the working condition of the plug through the display screen in real time, even if the user knows the current value, the voltage value, the power consumption and the leakage value of the plug in real time when the plug is used, the use safety condition of the household plug can be known to the user, the use energy consumption of each household appliance in a house can be judged according to the current value, the voltage value, the power consumption and the leakage value of each plug, the frequency of using the household appliance can be selected according to the energy consumption condition of each household appliance, and the electricity is saved.
Drawings
Fig. 1 is a schematic view of a digital display leakage protection plug according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of the digital leakage protection plug in fig. 1;
fig. 3 is a schematic diagram of a module structure of the digital display leakage protection plug in fig. 1;
the digital display type leakage protection plug 10, a front cover 11, an observation window 111, a switching button 112, a rear cover 12, a lead leading-out groove 121, a base 13, an installation space 14, an n pole pin 15, an l pole pin 16, a ground pin 17, a circuit board 18, an n pole adapter 19, an l pole adapter 20, a ground adapter 21, a first lead 22, a second lead 23, a third lead 24, an automatic switching mechanism 25, a zero sequence current transformer 26, a manual reset button 27, a test button 28, a display screen 29, a pin 291, a press-fitting step 292, a sealing adhesive layer 293, a switching switch (not shown), a pressing block 30, an arc concave 301, a pressing convex 302, a pressing surface 303, a current transformer 31, a current detection module 32, a voltage detection module 33, a metering module 34 and a residual current detection module 35.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, does not have specific limited action, is general finger, right the technical scheme of the utility model does not constitute limited action. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; 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. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.
Example 1
As shown in fig. 1 to fig. 3, a digital display leakage protection plug 10 of the present invention includes: the front cover 11, the rear cover 12 and the base 13 are fixedly connected into a whole when being installed, the base 13 is positioned between the front cover 11 and the rear cover 12, an installation space 14 is formed between the base 13 and the front cover 11, and a circuit board 18 is installed in the installation space 14. The back cover 12 is provided with an N pole pin 15, an L pole pin 16 and a ground pin 17, wherein the N pole pin 15, the L pole pin 16 and the ground pin 17 are used for being plugged into a socket of equipment to obtain power supply to be transmitted to connected external equipment such as an electric appliance and the like. The circuit board 18 is provided with an N-pole adapter 19, an L-pole adapter 20 and a ground adapter 21, the N-pole pin 15 is electrically connected to the circuit board 18 and the N-pole adapter 19 through a first lead 22, the L-pole pin 16 is electrically connected to the circuit board 18 and the L-pole adapter 20 through a second lead 23, and the ground pin 17 is electrically connected to the circuit board 18 and the ground adapter 21 through a third lead 24. The back cover 12 is also provided with an automatic switching mechanism 25. During installation, the first lead 22 and the second lead 23 are electrically connected to the electrical input end of the automatic switching-on/off mechanism 25, and the circuit board 18 is electrically connected to the electrical output end of the automatic switching-on/off mechanism 25, so that when the currents in the first lead 22 and the second lead 23 are abnormal, the automatic switching-on/off mechanism 25 can cut off the power of the N-pole adapter 19 and the L-pole adapter 20, thereby protecting the external equipment connected with the leakage plug and the plug, and also playing a role in saving electric energy.
Further, the wiring board 18 is also provided with: a zero sequence current transformer 3126 and a current transformer 31. The zero-sequence current transformer 3126 is used for detecting the current stability in the first and second wires 22 and 23, and the current transformer 31 is used for detecting the current stability in the second wire 23. Specifically, the first wire 22 and the second wire 23 are both passed through the zero sequence current transformer 3126, so that the zero sequence current transformer 3126 can accurately detect when a current in one of the first wire 22 or the second wire 23 is abnormal. Meanwhile, the second wire 23 passes through the zero sequence current transformer 3126 after passing through the current transformer 31, so that when the current in the second wire 23 is abnormal, the current transformer 31 can accurately detect the abnormal current. Through the cooperation detection of zero sequence current transformer 3126 and current transformer 31 like this, when the electric current is unusual, just can accurately learn that it is unusual that the electric current in first wire 22 appears or the electric current in second wire 23 appears to be unusual to be convenient for maintain the circuit, improve plug circuit maintenance efficiency.
The circuit board 18 is electrically mounted with a current detection module 32, a voltage detection module 33 and a metering module 34. The zero sequence current transformer 3126 and the current transformer 31 are both electrically connected to the current detection module 32 to transmit the current abnormality information in the first wire 22 and in the second wire 23 to the current detection module 32. The current detection module 32 is further configured to detect current values in the first wire 22 and the second wire 23, the voltage detection module 33 is configured to detect voltage values in the first wire 22 and the second wire 23, and the metering module 34 is configured to calculate the voltage value detected by the voltage detection module 33 and the current value detected by the current detection module 32, so as to calculate the current value, the voltage value, the leakage current value in the first wire 22 and the second wire 23, and the power consumption of the connected external device. The digital display type earth leakage protection plug 10 is further provided with a display screen 29. The display screen 29 is used for displaying the current value, the voltage value, the power consumption and the leakage current value of the first wire 22 and the second wire 23 in real time. The display screen 29 is electrically connected to the circuit board 18. The metering module 34 transmits the calculated current value, voltage value, leakage value and power consumption of the equipment of the first lead 22 and the second lead 23 to the display screen 29 through the circuit structure on the circuit board 18 in real time for a user to visually check.
The circuit board 18 is also provided with a residual current detection module 35. The residual current detection module 35 is used for detecting and verifying the currents in the first wire 22 and the second wire 23. The current detection module 32 is electrically connected to the residual current detection module 35. The residual current detection module 35 is electrically connected to the automatic switching-on/off mechanism 25. The current detection module 32 is electrically connected to the residual current detection module 35 to send the detection information and the current abnormality information to the residual current detection module 35. The residual current detection module 35 is electrically connected to the automatic switching-on/off mechanism 25. That is, when the residual current detection module 35 detects the current in the first conductor 22 and the current in the second conductor 23 and confirms that an electric leakage condition exists, the automatic switching mechanism 25 is controlled to perform switching-off and power-off.
The digital display type leakage protection plug 10 can accurately detect the plug leakage condition and cut off the power of the plug when the plug leaks electricity. Meanwhile, the user can also know the working condition of the plug through the display screen 29 in real time, even if the user knows the current value, the voltage value, the leakage value and the power consumption of the equipment of the plug flowing through when the plug is used in real time, the user can know the use safety condition of the household plug conveniently, the use energy consumption of each household appliance in a house can be judged according to the current value, the voltage value, the power consumption and the leakage value of each plug, the frequency of using the household appliance can be selected according to the energy consumption condition of each household appliance, and the electricity is saved.
In one embodiment, the circuit board 18 is further electrically provided with a switch. The selector switch is used to switch the display data of the display screen 29. The front cover 11 is also provided with a switch button 112. The switch button 112 is connected to a switch for switching the display data of the display screen 29 when the switch button 112 is pressed, thereby allowing the user to view different detection data.
Further, a display screen 29 is fixed to the wiring board 18, and the front cover 11 is formed with a viewing window 111 for a user to view the display screen 29.
In one embodiment, the display 29 is inserted into the circuit board 18 through a plurality of pins 291, and the pins 291 are electrically connected. This enables the display screen 29 to be mounted and the display screen 29 to be electrically connected to the circuit board 18. The side of the display screen 29 far away from the circuit board 18 is also formed with a press-fitting step 292, and the edge of the observation window 111 is pressed against the press-fitting step 292. When the front cover 11 is fixed to the rear cover 12 and the base 13, the edge of the viewing window 111 presses the display screen 29 against the wiring board 18, and the mounting is quick and easy. In addition, a sealant layer 293 is provided on the press-fitting step 292. The sealant layer 293 is used to seal the mounting gap between the viewing window 111 and the display screen 29, thereby ensuring the stability of the mounting structure. A portion of the display screen 29 extends into the viewing window 111, thus preventing the sealant layer 293 from covering the display end face of the display screen 29.
In a specific embodiment, a manual reset button 27 is provided on the front cover 11. The manual reset button 27 is used for a user to press the automatic opening/closing mechanism 25, thereby resetting the automatic opening/closing mechanism 25. The circuit board 18 is formed with a through hole, and the manual reset button 27 contacts the reset switch of the automatic opening and closing mechanism 25 through the through hole formed in the circuit board 18. Thus, the closing reset can be realized by pressing the manual reset button 27.
In a specific embodiment, a test button 28 is further provided on the front cover 11. The test button 28 is connected to a test switch for performing a switching test. The test switch is electrically connected to the residual current monitoring module. The test button 28 is connected with a test switch, and the test switch is used for performing a switching-on and switching-off test. That is, the test switch may control the first wire 22 or the second wire 23 to leak current through the circuit. The test button 28 is pressed to test the leakage opening function of the plug before the plug is used.
As a specific embodiment, the N-pole adapter 19, the L-pole adapter 20, and the ground adapter 21 are electrically connected to an external device through connection wires. The rear cover 12 is provided with a lead wire drawing groove 121 for drawing out a connection lead wire electrically connecting the N-pole adapter 19, the L-pole adapter 20, and the ground adapter 21. A pressing block 30 is arranged above the wire leading-out groove 121 for pressing and limiting the connecting wires. One side of the pressing block 30 for contacting the connecting wires is an arc concave surface 301, and a pressing convex part 302 is arranged in the arc concave surface 301 for further pressing the connecting wires. The pressing projection 302 is made of a rubber material and is formed with a pressing surface 303 having a texture, which can further secure the pressing performance for the connection wire.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A digital display type earth leakage protection plug comprising: a front cover, a rear cover and a base; the front cover, the rear cover and the base are fixedly connected into a whole; the base is positioned between the front cover and the rear cover; the base and the front cover jointly form an installation space; the rear cover is provided with an N pole pin, an L pole pin and a ground wire pin which are used for inserting a socket of equipment; a circuit board is arranged in the mounting space; the rear cover is provided with an N-pole adapter, an L-pole adapter and a ground wire adapter; the N-pole pin is connected to the circuit board and the N-pole adapter through a first lead wire; the L-pole pin is connected to the circuit board and the L-pole adapter through a second lead wire; the ground wire pin is connected to the circuit board and the ground wire adapter through a third lead wire; the circuit board is provided with an automatic switching-on/switching-off mechanism for switching off the N-pole adapter and the L-pole adapter when the currents in the first lead and the second lead are abnormal; the first conducting wire and the second conducting wire are electrically connected to the electrical input end of the automatic switching-on/off mechanism; the circuit board is electrically connected to the electrical output end of the automatic switching-on/off mechanism; the circuit board still is equipped with: the zero sequence current transformer is used for detecting the current stability in the first conducting wire and the second conducting wire, and the current transformer is used for detecting the current stability in the second conducting wire; the first lead and the second lead both penetrate through the zero sequence current transformer; the second lead passes through the zero sequence current transformer after passing through the current transformer; the circuit board is electrically provided with a current detection module for detecting current values in the first lead and the second lead, a voltage detection module for detecting voltage values in the first lead and the second lead and a metering module for calculating the voltage values and the current values and calculating the power consumption and the line leakage values of the equipment; the current detection module and the voltage detection module are electrically connected to the metering module; the digital display type leakage protection plug is also provided with a display screen for displaying the current value, the voltage value, the power consumption and the leakage value of the first lead and the second lead in real time; the display screen is electrically connected to the circuit board; the circuit board is also provided with a residual current detection module for detecting and checking the current in the first lead and the second lead; the current detection module is electrically connected to the residual current detection module; and the residual current detection module is electrically connected to the automatic switching-on/off mechanism.
2. A leakage protection plug according to claim 1, wherein the plug further comprises a first terminal,
the circuit board is also electrically provided with a selector switch for switching the display data of the display screen; the front cover is also provided with a switching button for switching display data of the display screen; the switching button is connected with the switching switch.
3. The digital display type earth leakage protection plug according to claim 2,
the display screen is fixed to the circuit board; the front cover is formed with a viewing window for a user to view the display screen.
4. A leakage protection plug according to claim 3, wherein the plug further comprises a first terminal,
the display screen is electrically inserted in the circuit board through a plurality of pins; a press-mounting step is formed on one side of the display screen, which is far away from the circuit board; the edge of the observation window is tightly pressed on the press-fitting step; a sealing glue layer used for sealing an installation gap between the observation window and the display screen is arranged on the press mounting step; and part of the display screen extends into the observation window.
5. A leakage protection plug according to claim 1, wherein the plug further comprises a first terminal,
a manual reset button for pressing the automatic switching-on and switching-off mechanism is arranged on the front cover; and the manual reset button penetrates through a through hole formed by the circuit board to contact a reset switch of the automatic switching-on/off mechanism.
6. A leakage protection plug according to claim 1, wherein the plug further comprises a first terminal,
the front cover is also provided with a test button; the test button is connected with a test switch for performing a switching-on and switching-off test; the test switch is electrically connected to the residual current monitoring module.
7. A leakage protection plug according to claim 1, wherein the plug further comprises a first terminal,
the N-pole adapter, the L-pole adapter and the ground wire adapter are electrically connected to external equipment through connecting wires respectively; the rear cover is provided with three supporting convex ribs which are respectively used for supporting the end parts of the three connecting wires; the support rib is formed with a groove for connecting an end of the wire.
8. A leakage protection plug according to claim 7, wherein the first and second terminals are electrically connected to each other,
the rear cover is also provided with a limiting shell used for gathering the three connecting wires together.
9. A leakage protection plug according to claim 8, wherein the plug further comprises a first terminal,
and a pressing block used for pressing and limiting the connecting lead is arranged in the rear cover.
10. A leakage protection plug of digital display type according to claim 9,
one side of the pressing block, which is used for contacting the connecting lead, is an arc-shaped concave surface; a pressing convex part for pressing the connecting lead is arranged in the arc concave surface; the pressing convex part is made of rubber materials and is provided with a pressing surface with grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586152.0U CN217768841U (en) | 2022-06-23 | 2022-06-23 | Digital display type leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586152.0U CN217768841U (en) | 2022-06-23 | 2022-06-23 | Digital display type leakage protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217768841U true CN217768841U (en) | 2022-11-08 |
Family
ID=83894742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221586152.0U Active CN217768841U (en) | 2022-06-23 | 2022-06-23 | Digital display type leakage protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217768841U (en) |
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2022
- 2022-06-23 CN CN202221586152.0U patent/CN217768841U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Address before: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |