CN201114546Y - Industrial local installed TV monitoring system under a coal mine well - Google Patents
Industrial local installed TV monitoring system under a coal mine well Download PDFInfo
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- CN201114546Y CN201114546Y CNU2007201281972U CN200720128197U CN201114546Y CN 201114546 Y CN201114546 Y CN 201114546Y CN U2007201281972 U CNU2007201281972 U CN U2007201281972U CN 200720128197 U CN200720128197 U CN 200720128197U CN 201114546 Y CN201114546 Y CN 201114546Y
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Abstract
The utility model discloses an intrinsic safety television monitoring system for the coal mine underground industry, comprising two or more than two intrinsic safety carrier frequency cameras, two or more than two flame retardant coaxial cables, an underground multi-channel wide frequency light emitter, an above ground multi-channel wide frequency light-receiving demodulating machine, a core optical fiber of the flame retardant cable and a monitor, etc. The system has strong anti-interference, low power consumption, light weight and convenient use and installation, which can realize coal mine underground multi-point collection transmission; two or more than two intrinsic safety carrier frequency camera imaging signals that are collected and summarized by the core optical fiber are formed and transmitted to an above ground monitor. The television monitoring system has stronger anti-interference capacity, which is applicable to transmitting images in the environment of coal mine underground high-power motors and can realize multi-point remote transmission and monitoring and connect the signal to local area network or wide area network in the mining area through the above ground monitor for more departments to monitor.
Description
Technical field:
The utility model relates to industrial intrinsic safety TV monitor system under a kind of coal mine, belongs to electronic information technical field.
Background technology:
The video camera that photographic images is used in colliery used on down-hole mining surface and the tunnel all is flame-proof types at present, its shortcoming is: volume is big, heavy, inconvenience is installed in the down-hole, the transmission of picture signal is point-to-point transmission, holding wire and supply lines will lay respectively during installation, and the interference of down-hole heavy-duty motor is lacked and be subject to the image video signal transmission range, causes images unintelligible, efficiency of transmission is low, power consumption is big, power supply has a power failure the back system can not self-powered, and installation is wasted time and energy, and is not easy to staff's operation.
The utility model content:
The utility model purpose is to provide a kind of antijamming capability strong, and power consumption is little, and is in light weight, easy to install and use, can realize that multiple spot gathers industrial intrinsic safety TV monitor system under the coal mine of transmission.
The purpose of this utility model is implemented by following technical scheme: industrial intrinsic safety TV monitor system includes two or more intrinsic safety carrier frequency video cameras under a kind of coal mine, two or more fire-retardant co-axial cable, a down-hole multichannel wideband light is sent out machine, an aboveground multichannel wideband light is received the demodulation machine,, the single optical fibre in the fire-retardant cable, monitor, the picture signal of described two or more intrinsic safety carrier frequency video camera outputs, be input to a described down-hole multichannel wideband light by described two or more fire-retardant co-axial cable respectively and send out machine, described multichannel wideband light is sent out machine and by above-mentioned fire-retardant co-axial cable intrinsic safety electric source is flowed to described intrinsic safety carrier frequency video camera simultaneously, it is one road signal of telecommunication that described down-hole multichannel wideband light sends out that machine gathers plural picture signal, and be converted to one road laser signal, the single optical fibre of described one road laser signal in described fire-retardant cable is transferred to aboveground described multichannel wideband light and receives the demodulation machine and implement light-to-current inversion, and described multichannel wideband light is received the vision radio-frequency signal demodulation of demodulation machine after with conversion and is reduced into image video signal and is transferred to monitor; Formation gathers two or more intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor.
Wherein said intrinsic safety carrier frequency video camera includes housing, the camera that contains the low power image transducer, super brightness white light emitting diode plate, the described camera that contains the low power image transducer embeds in the middle of the described super brightness white light emitting diode plate, and described housing adopts the stainless steel double-decker; Low power image transducer output output 50Hz-6MHz image video signal is connected with the input of modulation circuit of intermediate frequency plate, modulation circuit of intermediate frequency plate output FM intermediate frequency picture signal.
The shared described fire-retardant co-axial cable transmission of the power supply-intrinsic safety electric source of the picture signal of described intrinsic safety carrier frequency video camera and intrinsic safety carrier frequency video camera.
The centre frequency of described modulation circuit of intermediate frequency output signal is 38MHz.
Described multichannel wideband light is sent out machine and is included automatic gain control circuit, up-converter circuit, hybrid circuit, optical modulating circuit, the picture signal of described intrinsic safety carrier frequency video camera output is input to the input of described automatic gain control circuit, the output of described automatic gain control circuit links to each other with the input of described up-converter circuit, the output of described up-converter circuit links to each other with the input of described hybrid circuit, the output of described hybrid circuit links to each other with the input of described optical modulating circuit, mixed image high-frequency signal is finished Laser Modulation at optical modulating circuit, and exports described one road laser signal.
Described up-converter circuit is more than one, and described image intermediate frequency signal is all corresponding one by one with described automatic gain control circuit and described up-converter circuit.
Described multichannel wideband light is received the demodulation machine and is included the wideband photoelectric conversion circuit, signal of telecommunication distributor circuit, signal of telecommunication demodulator circuit, described wideband photoelectric conversion circuit input receives described one road laser signal, by the described wideband photoelectric conversion circuit output output image train frequency signal of telecommunication, the described train frequency signal of telecommunication is input to the input of described signal of telecommunication distributor circuit, the output of described signal of telecommunication distributor circuit is exported at least two-way or two-way with power on signal, described two-way or two-way are input to the input of described two or more signal of telecommunication demodulator circuits with power on signal, export corresponding described image video signal by the output of described demodulator circuit and are transferred to monitor.
The utility model advantage is: industrial intrinsic safety TV monitor system antijamming capability is strong under the coal mine, power consumption is little, in light weight, easy to install and use, can realize that multiple spot gathers transmission under the coal mine, formation gathers two or more intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor.This system has stronger antijamming capability, is adapted under the coal mine images in the heavy-duty motor environment, realizes multiple spot long-distance transmissions and supervision, and signal can be inserted mining area local area network (LAN) or wide area network by aboveground monitor, for more multidisciplinary supervision.
Description of drawings
Fig. 1 is the catenation principle figure of the utility model embodiment 1.
Fig. 2 is the intrinsic safety carrier frequency camera structure schematic diagram of embodiment 1.
Fig. 3 is that the multichannel wideband optical transceiver of embodiment 1 connects block diagram.
Fig. 4 is that the multichannel wideband light of embodiment 1 is received demodulation machine connection block diagram.
Fig. 5 is the catenation principle figure of the utility model embodiment 2.
Fig. 6 is that the multichannel wideband optical transceiver of the utility model embodiment 2 connects block diagram.
Fig. 7 is that the multichannel wideband light of the utility model embodiment 2 is received demodulation machine connection block diagram.
Fig. 8 is the catenation principle figure of utility model embodiment 3.
Fig. 9 is that the multichannel wideband optical transceiver of the utility model embodiment 3 connects block diagram.
Figure 10 is that the multichannel wideband light of the utility model embodiment 3 is received demodulation machine connection block diagram.
Intrinsic safety carrier frequency video camera-1, wideband light is sent out machine-2, and wideband light is received demodulation machine-3, monitor-4, fire-retardant co-axial cable-5, fire-retardant cable-6, intrinsic safety electric source-7, picture signal-8, one road laser signal-9, image video signal-10, housing-11, low power image transducer-12, camera-13, super brightness white light emitting diode plate-14, modulation circuit of intermediate frequency plate-15, automatic gain control circuit-16, up-converter circuit-17, hybrid circuit-18, optical modulating circuit-19, wideband photoelectric conversion circuit-20, signal of telecommunication distributor circuit-21, signal of telecommunication demodulator circuit-22.
Embodiment
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, industrial intrinsic safety TV monitor system includes two intrinsic safety carrier frequency video cameras 1 under a kind of coal mine, article two, fire-retardant co-axial cable 5, down-hole two light of having a lot of social connections is frequently sent out machine 2, one the aboveground two light receipts demodulation machine 3 frequently of having a lot of social connections,, the single optical fibre in the fire-retardant cable 6, monitor 4, the picture signal 8 of two intrinsic safety carrier frequency video camera 1 outputs, be input to a down-hole two light of having a lot of social connections frequently by two fire-retardant co-axial cables 5 respectively and send out machine 2, simultaneously two light of having a lot of social connections are frequently sent out machine 2 and by above-mentioned two fire-retardant co-axial cables 5 intrinsic safety electric source 7 are flowed to two intrinsic safety carrier frequency video cameras 1 respectively respectively, having a lot of social connections frequently in down-hole two, to send out that machine 2 gathers plural picture signal 8 be one road signal of telecommunication to light, and be converted to one road laser signal 9, the single optical fibre of one road laser signal 9 in fire-retardant cable 6 is transferred to an aboveground two-way wideband light and receives demodulation machine 3 and implement light-to-current inversion, and two-way wideband light receipts demodulation machine 3 is reduced into image video signal 10 with the vision radio-frequency signal demodulation after the conversion and is transferred to monitor 4; Formation gathers two intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor 4, and monitor 4 can be several, realizes the transmission and the supervision of farther distance.
Wherein intrinsic safety carrier frequency video camera 1 includes housing 11, the camera 13 that contains low power image transducer 12, super brightness white light emitting diode plate 14, the camera 13 that contains low power image transducer 12 embeds in the middle of the super brightness white light emitting diode plate 14, and housing 11 adopts the stainless steel double-decker; Low power image transducer 12 outputs output 50Hz-6MHz image video signal is connected with the input of modulation circuit of intermediate frequency plate 15, modulation circuit of intermediate frequency plate 15 output FM intermediate frequency picture signals.The centre frequency of FM intermediate frequency picture signal is 38MHz.The picture signal 8 of intrinsic safety carrier frequency video camera 1 and 7 a shared fire-retardant co-axial cable 5 transmission of the power supply-intrinsic safety electric source of intrinsic safety carrier frequency video camera 1.
Two light of having a lot of social connections are frequently sent out machine 2 and are included two automatic gain control circuits 16, two up-converter circuits 17, hybrid circuit 18, optical modulating circuit 19, two picture signals 8 of two intrinsic safety carrier frequency video camera 1 outputs are input to the input of two automatic gain control circuits 16 respectively, the output of two automatic gain control circuits 16 links to each other with the input of two up-converter circuits 17 respectively, can adapt to the input of the intermediate-freuqncy signal of different amplitudes.The output of two up-converter circuits 17 links to each other with the input of hybrid circuit 18, the output of hybrid circuit 18 links to each other with the input of optical modulating circuit 19, mixed image high-frequency signal is finished Laser Modulation at optical modulating circuit 19, and exports one road laser signal 9.
Two have a lot of social connections frequently, and light receipts demodulation machine 3 includes a wideband photoelectric conversion circuit 20, a signal of telecommunication distributor circuit 21, two signal of telecommunication demodulator circuits 22, wideband photoelectric conversion circuit 20 inputs receive one road laser signal 9, the signal of telecommunication that comprises two frequencies by the output of wideband photoelectric conversion circuit 20 outputs, this signal of telecommunication is input to the input of a signal of telecommunication distributor circuit 21, the output output two path signal of a signal of telecommunication distributor circuit 21, two path signal is input to the input of two signal of telecommunication demodulator circuits 22 respectively, exports corresponding image video signal 10 by the output of signal of telecommunication demodulator circuit 22 and is transferred to monitor 4.
Embodiment 2: as Fig. 5, Fig. 6, shown in Figure 7, industrial intrinsic safety TV monitor system includes eight intrinsic safety carrier frequency video cameras 1 under a kind of coal mine, article eight, fire-retardant co-axial cable 5, down-hole eight light of having a lot of social connections is frequently sent out machine 2, one the aboveground eight light receipts demodulation machine 3 frequently of having a lot of social connections,, the single optical fibre in the fire-retardant cable 6, monitor 4, the picture signal 8 of eight intrinsic safety carrier frequency video camera 1 outputs, be input to a down-hole eight light of having a lot of social connections frequently by eight fire-retardant co-axial cables 5 respectively and send out machine 2, simultaneously eight light of having a lot of social connections are frequently sent out machine 2 and by above-mentioned eight fire-retardant co-axial cables 5 intrinsic safety electric source 7 are flowed to eight intrinsic safety carrier frequency video cameras 1 respectively respectively, having a lot of social connections frequently in down-hole eight, to send out that machine 2 gathers the picture signal more than eight 8 be one road signal of telecommunication to light, and be converted to one road laser signal 9, the single optical fibre of one road laser signal 9 in fire-retardant cable 6 is transferred to aboveground one eight light of having a lot of social connections frequently and receives demodulation machine 3 and implement light-to-current inversion, and eight light of having a lot of social connections are frequently received demodulation machine 3 and the vision radio-frequency signal demodulation after the conversion is reduced into image video signal 10 is transferred to monitor 4; Formation gathers eight intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor 4, and monitor 4 can be several, realizes the transmission and the supervision of farther distance.
Wherein the structure of intrinsic safety carrier frequency video camera 1 is as described in the embodiment 1.
Eight light of having a lot of social connections are frequently sent out machine 2 and are included eight automatic gain control circuits 16, eight up-converter circuits 17, hybrid circuit 18, optical modulating circuit 19, eight picture signals 8 of eight intrinsic safety carrier frequency video camera 1 outputs are input to the input of eight automatic gain control circuits 16 respectively, the output of eight automatic gain control circuits 16 links to each other with the input of eight up-converter circuits 17 respectively, can adapt to the input of the intermediate-freuqncy signal of different amplitudes.The output of eight up-converter circuits 17 links to each other with the input of hybrid circuit 18, the output of hybrid circuit 18 links to each other with the input of optical modulating circuit 19, mixed image high-frequency signal is finished Laser Modulation at optical modulating circuit 19, and exports one road laser signal 9.
Eight have a lot of social connections frequently, and light receipts demodulation machine 3 includes a wideband photoelectric conversion circuit 20, a signal of telecommunication distributor circuit 21, eight signal of telecommunication demodulator circuits 22, wideband photoelectric conversion circuit 20 inputs receive one road laser signal 9, the signal of telecommunication that comprises eight frequencies by the output of wideband photoelectric conversion circuit 20 outputs, this signal of telecommunication is input to the input of a signal of telecommunication distributor circuit 21, the output of a signal of telecommunication distributor circuit 21 is exported eight road signals of telecommunication, eight road signals of telecommunication are input to the input of eight signal of telecommunication demodulator circuits 22 respectively, export corresponding image video signal 10 by the output of eight signal of telecommunication demodulator circuits 22 and are transferred to monitor 4.
Embodiment 3: as Fig. 8, Fig. 9, shown in Figure 10, industrial intrinsic safety TV monitor system includes 12 intrinsic safety carrier frequency video cameras 1 under a kind of coal mine, article 12, fire-retardant co-axial cable 5, down-hole 12 light of having a lot of social connections is frequently sent out machine 2, the frequency light of having a lot of social connections for one aboveground 12 is received demodulation machine 3,, the single optical fibre in the fire-retardant cable 6, monitor 4, the picture signal 8 of 12 intrinsic safety carrier frequency video camera 1 outputs, be input to a down-hole 12 light of having a lot of social connections frequently by 12 fire-retardant co-axial cables 5 respectively and send out machine 2, simultaneously 12 light of having a lot of social connections are frequently sent out machine 2 and by above-mentioned 12 fire-retardant co-axial cables 5 intrinsic safety electric source 7 are flowed to 12 intrinsic safety carrier frequency video cameras 1 respectively respectively, having a lot of social connections frequently in down-hole 12, to send out that machine 2 gathers the picture signal more than 12 8 be one road signal of telecommunication to light, and be converted to one road laser signal 9, the single optical fibre of one road laser signal 9 in fire-retardant cable 6 is transferred to aboveground one 12 light of having a lot of social connections frequently and receives demodulation machine 3 and implement light-to-current inversion, and 12 light of having a lot of social connections are frequently received demodulation machine 3 and the vision radio-frequency signal demodulation after the conversion is reduced into image video signal 10 is transferred to monitor 4; Formation gathers 12 intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor 4, and monitor 4 can be several, realizes the transmission and the supervision of farther distance.
Wherein the structure of intrinsic safety carrier frequency video camera 1 is as described in the embodiment 1.
12 light of having a lot of social connections are frequently sent out machine 2 and are included 12 automatic gain control circuits 16,12 up-converter circuits 17, hybrid circuit 18, optical modulating circuit 19,12 picture signals 8 of 12 intrinsic safety carrier frequency video camera 1 outputs are input to the input of 12 automatic gain control circuits 16 respectively, the output of 12 automatic gain control circuits 16 links to each other with the input of 12 up-converter circuits 17 respectively, can adapt to the input of the intermediate-freuqncy signal of different amplitudes.The output of 12 up-converter circuits 17 links to each other with the input of hybrid circuit 18, the output of hybrid circuit 18 links to each other with the input of optical modulating circuit 19, mixed image high-frequency signal is finished Laser Modulation at optical modulating circuit 19, and exports one road laser signal 9.
12 have a lot of social connections frequently, and light receipts demodulation machine 3 includes a wideband photoelectric conversion circuit 20, a signal of telecommunication distributor circuit 21,12 signal of telecommunication demodulator circuits 22, wideband photoelectric conversion circuit 20 inputs receive one road laser signal 9, the signal of telecommunication that comprises 12 frequencies by the output of wideband photoelectric conversion circuit 20 outputs, this signal of telecommunication is input to the input of a signal of telecommunication distributor circuit 21, the output of a signal of telecommunication distributor circuit 21 is exported ten two road signals of telecommunication, ten two road signals of telecommunication are input to the input of 12 signal of telecommunication demodulator circuits 22 respectively, export corresponding image video signal 10 by the output of 12 signal of telecommunication demodulator circuits 22 and are transferred to monitor 4.
Claims (7)
1. industrial intrinsic safety TV monitor system under the coal mine, it is characterized in that, it includes two or more intrinsic safety carrier frequency video cameras, two or more fire-retardant co-axial cable, a down-hole multichannel wideband light is sent out machine, an aboveground multichannel wideband light is received the demodulation machine,, the single optical fibre in the fire-retardant cable, monitor, the picture signal of described two or more intrinsic safety carrier frequency video camera outputs, be input to a described down-hole multichannel wideband light by described two or more fire-retardant co-axial cable respectively and send out machine, described multichannel wideband light is sent out machine and by above-mentioned fire-retardant co-axial cable intrinsic safety electric source is flowed to described intrinsic safety carrier frequency video camera simultaneously, it is one road signal of telecommunication that described down-hole multichannel wideband light sends out that machine gathers plural picture signal, and be converted to one road laser signal, the single optical fibre of described one road laser signal in described fire-retardant cable is transferred to aboveground described multichannel wideband light and receives the demodulation machine and implement light-to-current inversion, and described multichannel wideband light is received the vision radio-frequency signal demodulation of demodulation machine after with conversion and is reduced into image video signal and is transferred to monitor; Formation gathers two or more intrinsic safety carrier frequency camera review signals by the single optical fibre collection and is transferred to aboveground monitor.
2. industrial intrinsic safety TV monitor system under a kind of coal mine according to claim 1, it is characterized in that, wherein said intrinsic safety carrier frequency video camera includes housing, the camera that contains the low power image transducer, super brightness white light emitting diode plate, the described camera that contains the low power image transducer embeds in the middle of the described super brightness white light emitting diode plate, and described housing adopts the stainless steel double-decker; Low power image transducer output output 50Hz-6MHz image video signal is connected with the input of modulation circuit of intermediate frequency plate, modulation circuit of intermediate frequency plate output FM intermediate frequency picture signal.
3. industrial intrinsic safety TV monitor system is characterized in that under a kind of coal mine according to claim 1, the shared described fire-retardant co-axial cable of the power supply-intrinsic safety electric source of the picture signal of described intrinsic safety carrier frequency video camera and intrinsic safety carrier frequency video camera.
4. intrinsic safety carrier frequency video camera according to claim 2 is characterized in that the centre frequency of described modulation circuit of intermediate frequency output signal is 38MHz.
5. industrial intrinsic safety TV monitor system under a kind of coal mine according to claim 1, it is characterized in that, described multichannel wideband light is sent out machine and is included automatic gain control circuit, up-converter circuit, hybrid circuit, optical modulating circuit, the picture signal of described intrinsic safety carrier frequency video camera output is input to the input of described automatic gain control circuit, the output of described automatic gain control circuit links to each other with the input of described up-converter circuit, the output of described up-converter circuit links to each other with the input of described hybrid circuit, the output of described hybrid circuit links to each other with the input of described optical modulating circuit, mixed image high-frequency signal is finished Laser Modulation at optical modulating circuit, and exports described one road laser signal.
6. industrial intrinsic safety TV monitor system under a kind of coal mine according to claim 5 is characterized in that: described up-converter circuit is more than one, and described image intermediate frequency signal is all corresponding one by one with described automatic gain control circuit and described up-converter circuit.
7. industrial intrinsic safety TV monitor system under a kind of coal mine according to claim 1, it is characterized in that, described multichannel wideband light is received the demodulation machine and is included the wideband photoelectric conversion circuit, signal of telecommunication distributor circuit, signal of telecommunication demodulator circuit, described wideband photoelectric conversion circuit input receives described one road laser signal, by the described wideband photoelectric conversion circuit output output image train frequency signal of telecommunication, the described train frequency signal of telecommunication is input to the input of described signal of telecommunication distributor circuit, the output of described signal of telecommunication distributor circuit is exported at least two-way or two-way with power on signal, described two-way or two-way are input to the input of described two or more signal of telecommunication demodulator circuits with power on signal, export corresponding described image video signal by the output of described demodulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201281972U CN201114546Y (en) | 2007-07-25 | 2007-07-25 | Industrial local installed TV monitoring system under a coal mine well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201281972U CN201114546Y (en) | 2007-07-25 | 2007-07-25 | Industrial local installed TV monitoring system under a coal mine well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114546Y true CN201114546Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201281972U Expired - Lifetime CN201114546Y (en) | 2007-07-25 | 2007-07-25 | Industrial local installed TV monitoring system under a coal mine well |
Country Status (1)
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|---|---|
| CN (1) | CN201114546Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140176712A1 (en) * | 2012-12-21 | 2014-06-26 | Mark Jerome Redlinger | Thermal imager for a mine vehicle |
| CN110620898A (en) * | 2018-06-19 | 2019-12-27 | 武汉理工大学 | Underground television device based on spiral water spraying and optical fiber transmission technology and implementation method |
-
2007
- 2007-07-25 CN CNU2007201281972U patent/CN201114546Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140176712A1 (en) * | 2012-12-21 | 2014-06-26 | Mark Jerome Redlinger | Thermal imager for a mine vehicle |
| CN110620898A (en) * | 2018-06-19 | 2019-12-27 | 武汉理工大学 | Underground television device based on spiral water spraying and optical fiber transmission technology and implementation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XU JIANWEI Free format text: FORMER OWNER: INNER MONGOLIA FANGWEI ELECTRIC MANUFACTURING CO., LTD. Effective date: 20100709 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100709 Address after: 010080 the Inner Mongolia Autonomous Region Hohhot Jinchuan Development Zone Science and Technology Building 4 layer Inner Mongolia Fang Wei Electric Appliance Manufacture Co., Ltd. Patentee after: Xu Jianwei Address before: 010080, the Inner Mongolia Autonomous Region Hohhot Jinchuan Development Zone Science and Technology Building 4 layer, Inner Mongolia Fang Wei Electrical Appliance Manufacturing Co., Ltd. Patentee before: Inner Mongolia Fangwei Electrical Appliance Manufacturing Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: FANGWEI ELECTRIC APPLIANCES MANUFACTURING CO., LTD Free format text: FORMER OWNER: XU JIANWEI Effective date: 20100727 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100727 Address after: 010080 the Inner Mongolia Autonomous Region Hohhot Jinchuan Development Zone Science and Technology Building 4 layer Inner Mongolia Fang Wei Electric Appliance Manufacture Co., Ltd. Patentee after: Inner Mongolia Fangwei Electrical Appliance Manufacturing Co., Ltd. Address before: 010080 the Inner Mongolia Autonomous Region Hohhot Jinchuan Development Zone Science and Technology Building 4 layer Inner Mongolia Fang Wei Electric Appliance Manufacture Co., Ltd. Patentee before: Xu Jianwei |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |