CN210467728U - Edge electrical measurement control terminal structure - Google Patents
Edge electrical measurement control terminal structure Download PDFInfo
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- CN210467728U CN210467728U CN201921562516.XU CN201921562516U CN210467728U CN 210467728 U CN210467728 U CN 210467728U CN 201921562516 U CN201921562516 U CN 201921562516U CN 210467728 U CN210467728 U CN 210467728U
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Abstract
The utility model discloses edge electrical measurement control terminal, wherein edge electrical measurement control terminal includes upper cover shell, lower cover shell and locates relay, the main control board between upper and lower cover shell, the relay is close to upper cover shell, the main control board is close to lower cover shell, be equipped with input pin copper sheet and output pin copper sheet on the relay, the fixed connection input terminal pressure line frame of the tip of input pin copper sheet, the fixed connection output terminal pressure line frame of the tip of output pin copper sheet, input terminal pressure line frame and output terminal pressure line frame are located the both sides portion between upper and lower cover shell, have the perforation that is used for the electric wire to penetrate to pressure line frame internal fixation on upper and lower cover shell, output pin copper sheet has the epirelief undercut to let the extension piece of main control board pass under the epirelief undercut, the utility model discloses can double-fold improve the cloth board area, add two CPU two-sided cloth boards for subsequent function, the utilization rate of the space is greatly improved.
Description
The technical field is as follows:
the utility model belongs to the circuit breaker field, in particular to control terminal is measurationed to edge electricity.
Background art:
the circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.
The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current.
The current circuit breaker is reasonable inadequately in structural design, makes the main control board wiring board narrow and small, and two-layer double sided board adds the row needle mode about adopting for it is relatively poor to insulate and anti-interference effect, and assembly process is also more complicated, and has interconnecting link to be damaged by high temperature easily.
The invention content is as follows:
sign in the not enough of prior art, the utility model aims to provide an electrical control terminal that measurations in edge, this electrical control terminal that measurations in edge simple structure, reasonable in design are favorable to convenient equipment and improve life.
The utility model discloses control terminal is surveyed to edge electricity, its characterized in that: including upper cover shell, lower cover shell and locate relay, the main control board between the upper and lower cover shell, the relay is close to the upper cover shell, and the main control board is close to the lower cover shell, be equipped with input pin copper sheet and output pin copper sheet on the relay, the tip fixed connection input pressure line frame of input pin copper sheet, the tip fixed connection output pressure line frame of output pin copper sheet, input pressure line frame and output pressure line frame are located the both sides portion between the upper and lower cover shell, have on the upper and lower cover shell and are used for the electric wire to penetrate to the perforation of pressure line frame internal fixation, the output pin copper sheet has epirelief undercut to pass under the extension piece of main control board epirelief undercut, the front portion between upper and lower cover shell is equipped with the keypad, and the connecting wire on the keypad connects and extends the keypad seat electric connection that is equipped with on the piece.
Furthermore, the input pin copper sheet and the output pin copper sheet are respectively provided with a temperature acquisition probe, and the temperature acquisition probes are electrically connected with the main control board.
Furthermore, the temperature acquisition probe is adhered to the input pin copper sheet or the output pin copper sheet through glue.
Furthermore, the rear part of the main control board is provided with a clamping tongue which is clamped into a bayonet of the interface board so that the interface board and the main control board are vertically arranged, the interface board is provided with at least one row of binding posts, and the binding posts are welded and fixed with contacts of the main control board.
Furthermore, a plurality of support legs are arranged on the input pin copper sheet and the output pin copper sheet and are used for being electrically connected with the main control board through electric wires.
Furthermore, the keys and the LED lamps on the key board penetrate out of the front wall surfaces of the upper cover shell and the lower cover shell, a plurality of test holes are further formed in the front wall surfaces of the upper cover shell and the lower cover shell, the test holes are right opposite to the test electric contacts on the main control board, film attaching panels are attached to the front wall surfaces of the upper cover shell and the lower cover shell, and the film attaching panels are right opposite to the keys and provided with key convex parts.
Furthermore, the length of the copper sheet of the input pin is 27 +/-2 mm, the length of the copper sheet of the output pin is 56 +/-3 mm, and the widths of the copper sheet of the input pin and the copper sheet of the output pin are 10 +/-2 mm.
Furthermore, the upper cover shell and the lower cover shell are respectively provided with a bracket for positioning the relay and the main control board, and the lower cover shell is provided with a calibration pulse output hole which is just opposite to the calibration pulse electric contact on the main control board.
The utility model relates to a working method of an edge electrical measurement control terminal, which comprises an upper cover shell, a lower cover shell, a relay and a main control board which are arranged between the upper cover shell and the lower cover shell, the relay is close to the upper cover shell, the main control board is close to the lower cover shell, the relay is provided with an input pin copper sheet and an output pin copper sheet, the end part of the input pin copper sheet is fixedly connected with an input end wire pressing frame, the end part of the output pin copper sheet is fixedly connected with an output end wire pressing frame, the input end wire pressing frame and the output end wire pressing frame are positioned at two side parts between the upper cover shell and the lower cover shell, the upper cover shell and the lower cover shell are provided with through holes for the electric wires to penetrate into the wire pressing frame for fixing, the output pin copper sheet is provided with an upper convex concave part and a lower concave part so that the extension sheet of the main control board can penetrate through the upper convex concave part and the lower concave part, a key board is arranged at the front part between the upper cover shell and the lower cover shell, and a connecting wire joint on the key board is electrically connected with a key board seat arranged on the extension sheet; during installation, the main control board is installed on the lower cover shell, the circuit breaker, the input pin copper sheet and the output pin copper sheet of the circuit breaker are placed on the main control board, the temperature acquisition probe, the input pin copper sheet and the output pin copper sheet are connected and fixed well, all lines are connected well, an input end pressing line frame and an output end pressing line frame are adjusted well, a connecting line joint on the key board and a key board seat electric property inserting connection and fixing arranged on the extension sheet are fixed, and finally the upper cover shell is covered and fixed well, and a film pasting panel is pasted.
Furthermore, the rear part of the main control board is provided with a clamping tongue which is clamped into a bayonet of the interface board to ensure that the interface board is vertical to the main control board, and the fixing and data transmission of the interface board are realized by welding and fixing a binding post arranged on the interface board and a contact of the main control board.
The utility model discloses edge electrical measurement control terminal is showing the advantage:
1. structural layout: the method has the advantages that the area of the cloth plate is doubled, only a single CPU main control board is needed for realizing all functions, and meanwhile, the double-sided cloth plate of the double CPU main control boards is added for subsequent functions, so that the utilization rate of the space is greatly improved, the cloth plate insulation interval of the electronic components is shortened, the final assembly process is simple, simple and reliable, and the batch production is convenient.
2. Collecting the temperature of a wiring terminal: this application can know input/output binding post's temperature rise in real time, and to internet cloud platform and user's mobile client conveying in real time, let the user can know the power consumption safety situation at any time, automatic separating brake when the temperature rise of gathering binding post reaches predetermined dangerous value.
3. Electric magnetic latching relay: the length of copper sheets led out from two sides is greatly reduced while manganese-copper sampling resistors can be selectively arranged on two sides, heat generated by the resistors and heavy current is indirectly reduced, and the whole process is simple, reliable and very suitable for batch production.
Description of the drawings:
fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a right side view of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a bottom view of the present invention;
fig. 6 is a rear view of the present invention;
fig. 7 is a perspective view of the present invention;
fig. 8 is a schematic structural view of the key sheet of the present invention;
fig. 9 is a schematic diagram of the explosion structure of the present invention;
FIG. 10 is a schematic diagram of the assembly of the main control board and the eight-hole multi-function interface board of the present invention;
fig. 11 is a schematic structural view of the lower cover shell of the present invention;
fig. 12 is a schematic structural view of the upper cover shell of the present invention;
fig. 13 is a front view of the structure of the relay pin of the present invention;
fig. 14 is a side view of the structure of the relay pin of the present invention;
fig. 15 is a schematic perspective view of the present invention with the upper cover removed;
fig. 16 is a schematic perspective view of the relay of fig. 15 with the relay removed;
1. key convex part, 2, film pasting panel, 3, film pasting panel light transmission window, 4, programming debugging hole, 5, key elastic sheet reserved by lower shell, 6, lower cover shell, 7, upper cover shell, 8, eight-hole multifunctional interface hole reserved by upper cover shell (lower cover shell is same), 9, key board, 10, key board connecting wire (with plug), 11, power magnetic magnetism magnetic protection relay, 12, input end temperature collection (thermistor), 13, output end temperature collection (thermistor), 14, input end line pressing frame (with screw), 15, output end line pressing frame (with screw), 16, multifunctional interface board, 17, eight-hole multifunctional interface board double-side eight-hole 2.0-pitch arranged bus, 18, key board seat, 19, CPU main control board, 20, industrial air-open track bayonet lock, 21, double-color LED indicating lamp, 22, touch control key, 23, power magnetic magnetism magnetic protection relay lead wire package, 24, 5, power magnetic protection relay wire package, The multifunctional interface board bayonet, 25, the CPU main control board latch, 26 and the lower cover shell are used for supporting a bracket of the relay (the upper cover shell is the same), 27, the CPU main control board fixing hole, 28, the accurate pulse output hole, 29, the lower cover shell is provided with eight holes and 2.0-interval arranged female card slots (the upper cover shell is the same), 30, the right side of an output pin copper sheet of the power magnetic latching relay is provided with an upper convex concave part and a lower concave part which are 10 mm, and 31, the two sides of the input and output pins of the power magnetic latching relay can be provided with manganin sampling resistors; 32. input pin copper sheet, 33 output pin copper sheet, 34, through hole, 35, extension sheet, 36, binding post, 37, support leg, 38 and front wall surface.
The specific implementation mode is as follows:
the utility model discloses edge electrical measurement control terminal includes upper cover shell 7, lower cover shell 6 and locates relay 11, main control board 19 between the upper and lower cover shell, this relay can be electric power magnetic latching relay, magnetic latching relay is a novel relay that develops in recent years, also is an automatic switch, the same with other electromagnetic relay, play automatic switch-on and switch-off to the circuit, the difference is, the normally closed or normally open state of magnetic latching relay relies on the effect of permanent magnet steel completely, the conversion of its on-off state is triggered and accomplished by the pulse electric signal of certain width; what this application adopted is prior art's magnetic latching relay, but the structure of input pin copper sheet 32 and output pin copper sheet 33 is different from existing (the specific difference is as follows), relay 11 is close to upper cover shell 7, and main control board 19 is close to lower cover shell 6, and the relay sets up the position that leans on the front portion between upper and lower cover shell, and such setting can make the position at rear portion between upper and lower cover shell have great space and place main control board 19 (the appearance state of upper and lower cover shell can not change for standard size, through setting up the relay at front, main control board 19 sets up at the rear portion, even monolithic main control board 19's area is great, whole circuit function only needs monolithic CPU main control board 19 can accomplish the function of two or more present CPU main control boards, and also provide the space for subsequent function additional double CPU main control board. The utility model discloses the structure has doubled the laying board area that has improved, and the single-sided board realizes whole functions promptly, also adds the laying board area of double sided board for subsequent function simultaneously, has improved the utilization ratio in space greatly, electronic components's the insulating interval of laying board, and assembly technology simple festival, simple, reliable makes things convenient for mass production.
The relay 11 is provided with an input pin copper sheet 32 and an output pin copper sheet 33, the end part of the input pin copper sheet 32 is fixedly connected (the welding fixation can be adopted in the present application) with an input terminal crimping frame 14, the end part of the output pin copper sheet 33 is fixedly connected (the welding fixation can be adopted in the present application) with an output terminal crimping frame 15, the input terminal crimping frame 14 and the output terminal crimping frame 15 are positioned at two side parts between an upper cover shell and a lower cover shell, the upper cover shell and the lower cover shell are provided with through holes 34 for the electric wires to penetrate into the crimping frame for fixation, the output pin copper sheet 33 is provided with an upper concave part 30 (the size of the upper concave part is about 10 mm), the upper concave part 30 lifts a certain height on the output pin copper sheet 33, so that an extension sheet 35 of a main control board can penetrate through the upper concave part 30, the design is that the main control board 19 is arranged at the rear part, the control signal of the key board is required to be transmitted to the main control board 19, if the structure is not passed, the flat cable or the electric wire is adopted to pass through the pin copper sheet downwards or upwards, the high temperature of the pin copper sheet can damage the flat cable or the electric wire, so that the service life of the circuit breaker is extremely short, the extension sheet 35 of the main control board 19 passes through the upper convex lower concave part 30 downwards, because the extension sheet 3 adopts the high temperature resistant material which is the same as that of the main control board 19 (the main control board 19 can be a ceramic circuit board, an alumina ceramic circuit board, an aluminum nitride ceramic circuit board and the like, the more common main control board can be a printed board (PCB), the main material of the printed board (PCB) is a copper clad plate, the copper clad plate is composed of a substrate, copper foil and an adhesive, the substrate is an insulation layer plate composed of high molecular synthetic resin and a reinforcing material, the printed, aluminium nitride ceramic circuit board etc. can be high temperature resistant), thereby keep under keypad and the 19 electric connection's of main control board the condition, can not be scalded by the pin copper sheet again and damage, at last, the front portion between the lower cover shell is equipped with keypad 9, connecting wire joint 10 on the keypad 9 with extend the 18 electric connection of keypad seat that is equipped with on the piece, through will with the keypad seat 18 setting that connecting wire joint 10 electricity is connected on keypad 9 on extending the piece, thereby keep away from the pin copper sheet of high temperature with connecting wire on the keypad 9 and joint 10, avoid scalding the damage.
Furthermore, in order to avoid the problem that the contact resistance is increased due to various factors such as the loosening of raw embroidery caused by insufficient tightening torque and long-term use of the collecting breaker connecting terminal or the like, the temperature rise caused after the heavy current passes through until the phenomenon that the wiring terminal is ignited and the like causes the damage of the circuit breaker, the input pin copper sheet 32 and the output pin copper sheet 33 are respectively provided with temperature acquisition probes 12 and 13, the temperature acquisition probe is electrically connected with the main control board 19, the temperature acquisition probe is connected with the input pin copper sheet 32 or the output pin copper sheet 33 through the temperature acquisition probes 12 and 13 (which can be thermistors), thereby collecting the temperature rise of the wiring terminal in real time, transmitting the temperature rise to the gateway through 485 in real time, transmitting the temperature rise to an internet holder and a user mobile phone client, when the collected temperature rise of the pin copper sheet and the wiring terminal reaches a preset dangerous value, the switching is automatically switched off, and further damage or safety accidents are avoided.
Further, for the purpose of firm and stable connection, the temperature collecting probes 12 and 13 are adhered to the input pin copper sheet 32 or the output pin copper sheet 33 by glue.
Further, in order to ensure the vertical connection between the interface board and the main control board, a latch 25 is disposed at the rear portion of the main control board, the latch 25 is latched into a latch 24 of the interface board, so that the interface board and the main control board are vertically disposed, at least one row of terminals 36 is disposed on the interface board 16, the terminals 36 are welded and fixed to contacts of the main control board 19, the latch 25 fastens the interface board 16 to the main control board, and the terminals of the main control board abut against the interface board, so that the two are in a vertical state, and a stable and reliable position is provided for the subsequent welding of the terminals 36 and the main control board.
Furthermore, a plurality of support legs 37 are disposed on the input pin copper sheet 32 and the output pin copper sheet 33 for electrically connecting with a main control board through wires, and the support legs 37 can be used for collecting parameters such as current and voltage passing through the pin copper sheets and the wiring terminals, and connecting with ground and power supply.
Furthermore, the key 5 and the LED lamp 21 on the key board penetrate out of the front wall 38 of the upper and lower cover shells, a plurality of test holes 4 are further formed in the front wall of the upper and lower cover shells, the test holes 4 are right opposite to the test electric contacts on the main control board 19, the front wall of the upper and lower cover shells is pasted with the film pasting panel 2, the film pasting panel is right opposite to the key 5 and provided with the key convex parts 1, because the test holes 4 are directly formed in the front wall 38 of the upper and lower cover shells, testing or burning in the production process (testing or burning can be directly inserted into the test holes 4 through a manipulator) is facilitated, and later upgrading or maintenance is performed, the film pasting panel 2 can be torn down during later upgrading or maintenance, and then the film pasting panel 2 is pasted again.
Furthermore, in order to be well matched with standard upper and lower cover shells, the length of the input pin copper sheet is 27 +/-2 mm, the length of the output pin copper sheet is 56 +/-3 mm, the widths of the input pin copper sheet and the output pin copper sheet are 10 +/-2 mm, and the size along the longitudinal direction of the relay is 6 +/-2 mm.
Further, in order to facilitate fixing, the upper cover shell and the lower cover shell are respectively provided with a bracket 26 for positioning the relay and the main control board, and in order to perform calibration, the lower cover shell is provided with a calibration pulse output hole 28 which is over against a calibration pulse electrical contact on the main control board.
The utility model relates to a working method of an edge electrical measurement control terminal, which comprises an upper cover shell, a lower cover shell, a relay and a main control board which are arranged between the upper cover shell and the lower cover shell, the relay is close to the upper cover shell, the main control board is close to the lower cover shell, the relay is provided with an input pin copper sheet and an output pin copper sheet, the end part of the input pin copper sheet is fixedly connected with an input end wire pressing frame, the end part of the output pin copper sheet is fixedly connected with an output end wire pressing frame, the input end wire pressing frame and the output end wire pressing frame are positioned at two side parts between the upper cover shell and the lower cover shell, the upper cover shell and the lower cover shell are provided with through holes for the electric wires to penetrate into the wire pressing frame for fixing, the output pin copper sheet is provided with an upper convex concave part and a lower concave part so that the extension sheet of the main control board can penetrate through the upper convex concave part and the lower concave part, a key board is arranged at the front part between the upper cover shell and the lower cover shell, and a connecting wire joint on the key board is electrically connected with a key board seat arranged on the extension sheet; during installation, the main control board is installed on the lower cover shell, the circuit breaker, the input pin copper sheet and the output pin copper sheet of the circuit breaker are placed on the main control board, the temperature acquisition probe, the input pin copper sheet and the output pin copper sheet are connected and fixed well, all lines are connected well, an input end pressing line frame and an output end pressing line frame are adjusted well, a connecting line joint on the key board and a key board seat electric property inserting connection and fixing arranged on the extension sheet are fixed, and finally the upper cover shell is covered and fixed well, and a film pasting panel is pasted.
Furthermore, the rear part of the main control board is provided with a clamping tongue which is clamped into a bayonet of the interface board to ensure that the interface board is vertical to the main control board, and the fixing and data transmission of the interface board are realized by welding and fixing a binding post arranged on the interface board and a contact of the main control board.
The utility model discloses edge electrical measurement control terminal is showing the advantage:
1. structural layout: the method has the advantages that the area of the cloth plate is doubled, only a single CPU main control board is needed for realizing all functions, and meanwhile, the double-sided cloth plate of the double CPU main control boards is added for subsequent functions, so that the utilization rate of the space is greatly improved, the cloth plate insulation interval of the electronic components is shortened, the final assembly process is simple, simple and reliable, and the batch production is convenient.
2. Collecting the temperature of a wiring terminal: this application can know input/output binding post's temperature rise in real time, and to internet cloud platform and user's mobile client conveying in real time, let the user can know the power consumption safety situation at any time, automatic separating brake when the temperature rise of gathering binding post reaches predetermined dangerous value.
3. Electric magnetic latching relay: the length of copper sheets led out from two sides is greatly reduced while manganese-copper sampling resistors can be selectively arranged on two sides, heat generated by the resistors and heavy current is indirectly reduced, and the whole process is simple, reliable and very suitable for batch production.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (8)
1. An edge electrical measurement control terminal, comprising: including upper cover shell, lower cover shell and locate relay, the main control board between the upper and lower cover shell, the relay is close to the upper cover shell, and the main control board is close to the lower cover shell, be equipped with input pin copper sheet and output pin copper sheet on the relay, the tip fixed connection input pressure line frame of input pin copper sheet, the tip fixed connection output pressure line frame of output pin copper sheet, input pressure line frame and output pressure line frame are located the both sides portion between the upper and lower cover shell, have on the upper and lower cover shell and are used for the electric wire to penetrate to the perforation of pressure line frame internal fixation, the output pin copper sheet has epirelief undercut to pass under the extension piece of main control board epirelief undercut, the front portion between upper and lower cover shell is equipped with the keypad, and the connecting wire on the keypad connects and extends the keypad seat electric connection that is equipped with on the piece.
2. The edge electrical measurement control terminal of claim 1, wherein: the temperature acquisition device is characterized in that the input pin copper sheet and the output pin copper sheet are respectively provided with a temperature acquisition probe, and the temperature acquisition probes are electrically connected with the main control board.
3. The edge electrical measurement control terminal of claim 2, wherein: the temperature acquisition probe is adhered to the input pin copper sheet or the output pin copper sheet through glue.
4. The edge electrical measurement control terminal of claim 1, wherein: the back part of the main control board is provided with a clamping tongue which is clamped into a bayonet of the interface board so that the interface board and the main control board are vertically arranged, the interface board is provided with at least one row of binding posts, and the binding posts are welded and fixed with contacts of the main control board.
5. The edge electrical measurement control terminal of claim 1, wherein: and the input pin copper sheet and the output pin copper sheet are provided with a plurality of support legs for electrically connecting with the main control board through electric wires.
6. The edge electrical measurement control terminal of claim 1, wherein: the key and the LED lamp on the key board penetrate out of the front wall surfaces of the upper cover shell and the lower cover shell, a plurality of test holes are further formed in the front wall surfaces of the upper cover shell and the lower cover shell, the test holes are right opposite to the test electric contacts on the main control board, the front wall surfaces of the upper cover shell and the lower cover shell are provided with film pasting panels in an attached mode, and the film pasting panels face the key and are provided with key convex parts.
7. The edge electrical measurement control terminal of claim 1, wherein: the length of the input pin copper sheet is 27 +/-2 mm, the length of the output pin copper sheet is 56 +/-3 mm, and the widths of the input pin copper sheet and the output pin copper sheet are 10 +/-2 mm.
8. The edge electrical measurement control terminal of claim 1, wherein: the upper cover shell and the lower cover shell are respectively provided with a support used for positioning the relay and the main control board, and the lower cover shell is provided with a calibration pulse output hole which is just opposite to a calibration pulse electric contact on the main control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562516.XU CN210467728U (en) | 2019-09-19 | 2019-09-19 | Edge electrical measurement control terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562516.XU CN210467728U (en) | 2019-09-19 | 2019-09-19 | Edge electrical measurement control terminal structure |
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| Publication Number | Publication Date |
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| CN210467728U true CN210467728U (en) | 2020-05-05 |
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| CN201921562516.XU Active CN210467728U (en) | 2019-09-19 | 2019-09-19 | Edge electrical measurement control terminal structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544606A (en) * | 2019-09-19 | 2019-12-06 | 福建阿古电务数据科技有限公司 | Edge electrical measurement control terminal and working method thereof |
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2019
- 2019-09-19 CN CN201921562516.XU patent/CN210467728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544606A (en) * | 2019-09-19 | 2019-12-06 | 福建阿古电务数据科技有限公司 | Edge electrical measurement control terminal and working method thereof |
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