CN204761392U - Junction box - Google Patents
Junction box Download PDFInfo
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- CN204761392U CN204761392U CN201520447988.6U CN201520447988U CN204761392U CN 204761392 U CN204761392 U CN 204761392U CN 201520447988 U CN201520447988 U CN 201520447988U CN 204761392 U CN204761392 U CN 204761392U
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- fusing
- mounting panel
- header box
- negative pole
- wire casing
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- 238000012806 monitoring device Methods 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005538 encapsulation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model relates to a junction box, mounting panel in box and box, that be used for installing each electrical components is equipped with two fuse device and first wire casing on the mounting panel, two fuse device are anodal fuse device and negative pole fuse device respectively, two fuse device intervals in the upper and lower orientation of mounting panel set up, and two fuse device arrange by a plurality of fuse and form, and the extending direction of one of them fuse device's range is parallel with a side of mounting panel, first wire casing setting this one of them fuse device's right side, just the orientation of first wire casing be the extending direction of this one of them fuse device's of perpendicular to range, the side that corresponds with a side above -mentioned mounting panel the box is equipped with the entrance hole. It is pleasing to the eye that the incasement of having guaranteed junction box is laid, can guarantee change convenient of maintenance and the electric wire of circuit moreover, above all, when the device needed to be changed, the change that does not have mixed and disorderly circuit to stop the device saved time and is laborsaving.
Description
Technical field
The utility model relates to a kind of header box, belongs to photovoltaic generation applied technical field.
Background technology
Solar energy power generating utilizes photovoltaic effect that solar energy is directly changed into the new energy technology of electric energy; photovoltaic generation solves energy crisis for the mankind and protection environment for human survival is significant; solar power generation starts application and development, and various large-scale intelligent photovoltaic plant arises at the historic moment.China's solar energy resources enriches, and solar energy power generating has great prospects for development in China.Header box is as one of electric unit requisite in solar power system, photovoltaic cell identical to some, specification series connection can be got up form photovoltaic tandem one by one, and then by some photovoltaic tandem parallel connection access header boxs, after converging in header box, by controller, DC power distribution cabinet, photovoltaic DC-to-AC converter, AC power distribution cabinet/AC distribution panel etc., support the use thus form complete photovoltaic generating system.
In recent years, the built-in photovoltaic conflux harvester of header box can be used for cell panel running status, photocell current measurement, lightning protection device state acquisition, DC circuit breaker state acquisition etc. in monitoring photovoltaic cell arrays, and the data measured and collect and equipment state are uploaded, ensure that solar photovoltaic generation system plays maximum effect.So, correct layout between device in header box is very important, but, device in header box of the prior art is not owing to paying attention to correct layout, connection line between device is very chaotic, frequent appearance intersection line, namely such setting has influence on the attractive in appearance of header box, also the two ends of circuit are often not easily found out because of the confusion of circuit, not only be unfavorable for the maintenance of circuit and the replacing of electric wire, and when device needs to change, not only chaotic circuit can affect the replacing of device, time-consuming but also require great effort.
Utility model content
The purpose of this utility model is to provide a kind of header box, chaotic with changing device in order to the circuit solved in traditional header box, time-consuming problem of requiring great effort again.
For achieving the above object, scheme of the present utility model comprises a kind of header box, header box comprise in casing and casing, for installing the mounting panel of each electric elements, mounting panel is provided with two device for fusing and the first wire casing, and described two device for fusing are respectively positive pole device for fusing and negative pole device for fusing; Described two device for fusing interval on the above-below direction of mounting panel is arranged, described two device for fusing rearrange by several fuses, the bearing of trend of the arrangement of one of them device for fusing is parallel with mounting panel side, and described first wire casing is arranged on the described right side of one of them device for fusing and the direction of described first wire casing is the bearing of trend of the arrangement perpendicular to one of them device for fusing described; The side corresponding with a side of described mounting panel of described casing is provided with entrance hole.
One of them device for fusing described is negative pole device for fusing, and described negative pole device for fusing is in the downside of mounting panel, and described positive pole device for fusing is in the upside of mounting panel, and a side of described mounting panel is the lower side of mounting panel; The downside of described casing is provided with described entrance hole.
The input of described negative pole device for fusing is arranged near the lower side of described mounting panel.
Described header box also comprises the second wire casing, and described first wire casing is vertical with the second wire casing to be arranged, and described second wire casing arranges away from negative pole device for fusing and the direction of described second wire casing is parallel with the bearing of trend of the arrangement of described positive pole device for fusing.
Described positive pole device for fusing is arranged on the upside of described second wire casing, and the input of described positive pole device for fusing is arranged near described second wire casing.
Described header box comprises monitoring device and outlet switch, and described monitoring device is arranged between negative pole device for fusing and the second wire casing, and the input of described monitoring device is near the output of described negative pole device for fusing; Described outlet switch is arranged on the left side of described monitoring device, and the input of described outlet switch and the setting up and down and input of output are in upper end.
The right side of described negative pole device for fusing is provided with communication module, and monitoring device connects described communication module; The right side of described positive pole device for fusing is provided with lightning arrester.
The downside of the casing of described header box is also provided with wire hole and the string holes that communicates, and wherein, wire hole is arranged on the left side of described downside, and described entrance hole is arranged on the right side of wire hole, and described communication string holes is arranged on the right side of entrance hole; Described entrance hole is divided into two parts: positive pole entrance hole and negative pole entrance hole, and described positive pole entrance hole and negative pole entrance hole interval are arranged.
Described mounting panel is also installed with power module, and described power module is arranged on the right side of described lightning arrester.
Each road photovoltaic group string all has cathode output end and cathode output end, the cathode output end of each road photovoltaic group string connects the input of corresponding bus-bar by described positive pole device for fusing, the output of described bus-bar exports two circuits: first line and the second circuit, described first line is connected to the electrode input end of described outlet switch, and described second connection is to the electrode input end of lightning arrester; The cathode output end of each road photovoltaic group string described is successively by exporting two articles of circuits after negative pole device for fusing and described monitoring device: tertiary circuit and the 4th circuit, described tertiary circuit is connected to the negative input of described outlet switch, and described 4th connection is to the negative input of described lightning arrester.
In the header box that the utility model provides, the circuit be connected with one of them device for fusing is incorporated in wire casing, and incoming line corresponding to another device for fusing directly connects this device for fusing, so connection line corresponding to two device for fusing does not interfere with each other; Further, two device for fusing are setting up and down, not only can ensure that circuit does not interfere with each other further, and can reduce the width of header box, ensure that the reasonability of the design of header box.That lays in the case that namely such setting ensure that header box is attractive in appearance, and during the replacing of the maintenance of conducting transmission line and electric wire, easily finds out the two ends of each circuit, and then ensure that the convenient of the maintenance of circuit and the replacing of electric wire; The most important thing is, because circuit is integrated, when device needs to change, there is no the replacing of mixed and disorderly circuit blocking device, to save time and laborsaving.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of photovoltaic confluence device;
Fig. 2 is the structure principle chart of the cylinder manifold of monitoring device;
Fig. 3 is the structure principle chart of the measurement plate of monitoring device;
Fig. 4 is the artwork of header box;
Fig. 5 is the outside drawing of monitoring device;
Fig. 6 is the artwork of the string holes of the downside of header box;
Fig. 7 is the structural representation of photovoltaic generation monitoring system.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Be illustrated in figure 1 the circuit connection diagram of the photovoltaic confluence device in header box, photovoltaic confluence device comprises shunt encapsulation monitoring device, power module, outlet switch, device for fusing, positive bus, lightning arrester.The cathode output end of each road photovoltaic group string is connected to the input of positive bus by positive pole device for fusing, the output of positive bus exports two circuits, article one, connection is to the electrode input end of outlet switch, and another connection is to the electrode input end of lightning arrester.
Shunt encapsulation monitoring device is made up of housing, measurement plate, cylinder manifold 3 part, and measurement plate and cylinder manifold concentrated setting form this shunt encapsulation monitoring device in housing.As shown in Figure 2, the cathode output end of every road photovoltaic group string is after negative pole device for fusing, be connected to the X1 input terminal of cylinder manifold, every road photovoltaic group is series-connected to an input terminal, the conductive copper plate of 1 ~ 16 road terminal in inside by monoblock of binding post X1 is converging together, confluxes in outlet terminal X2 place's realization.Shunt R1 ~ R16 is connected in series respectively at 1 ~ 16 road input of cylinder manifold.In Fig. 2, the pore that the intersection point of every two circuits is other represents this two circuits connections.As shown in Figure 3, the V1+ of R1 shunt is connected to the 3 terminal V1+ measuring plate P1, the V1-of R1 shunt is connected to the 4 terminal V1-measuring plate P1, the connection of other shunts connects according to the corresponding splicing ear provided in Fig. 3, the two ends of 1 ~ No. 16 shunt can both be connected to the correspondence position measured on plate, then measure plate and carry out sampled data information, monitor the negative pole outlet line of every bar photovoltaic group string with this.Measure plate the current conversion of every road photovoltaic group string to be millivolt magnitude voltage signals and to sample, and carry out data processing according to the information of sampling.Measure the nucleus module that plate is monitoring device, high performance 32 high-acruracy survey chips can be adopted, the circuit monitoring to photovoltaic group string can be realized, such as: monitoring device detects the electric current of the cathode output end of each road photovoltaic group string in real time, when detecting that the electric current on m road is greater than overcurrent definite value, now judge this road photovoltaic group string over current fault, after time delay, trigger corresponding fault flag or alarm.Here after time delay, trigger corresponding fault flag or alarm belongs to prior art, do not repeat here.Modbus-RTU communication can be realized additionally by the communication interface measured on plate.This monitoring device also possesses HMI interface, after connecting custom-designed human-machine operation panel, can show various running status and data in real time by this interface, and information is directly perceived in detail, handling safety, and debugging is convenient.
As shown in Figure 1, the cathode output end of each road photovoltaic group string is connected to the input of cylinder manifold by negative pole device for fusing, the output of cylinder manifold exports two circuits, and connection is to the negative input of outlet switch, and another connection is to the negative input of lightning arrester.
The electrical energy inputs of power module connects the output (the X2 end in Fig. 2) of the output of positive bus and the cylinder manifold of monitoring device, and the electric energy output end of power module connects the feeder ear of shunt encapsulation monitoring device.Power module, respectively from power taking both positive and negative polarity copper bar, then provides required electric energy for shunt encapsulates monitoring device after current conversion and/or voltage transitions.
This photovoltaic confluence device entirety is fixed on a mounting panel, and this mounting panel is installed in header box.As shown in Figure 4, this header box comprises header box casing 1, casing 1 internal fixtion has mounting panel 2, mounting panel 2 is fixed with each composition device of photovoltaic confluence device: shunt encapsulation monitoring device 3, power module 4, positive pole device for fusing 5, negative pole device for fusing 6, outlet switch 7, lightning protection device 8, communication terminal 9, wire casing 10, outlet terminal 11.Wire casing 10 is divided into wire casing 101 and wire casing 102, and both are vertically arranged.
Negative pole device for fusing 6 and positive pole device for fusing 5 interval on the above-below direction of mounting panel 2 is arranged, and negative pole device for fusing 6 is in the downside of mounting panel, and positive pole device for fusing 5 is in the upside of mounting panel 2.Two device for fusing rearrange by several fuses, the bearing of trend of the arrangement of negative pole device for fusing 6 is parallel with the lower side of mounting panel 2, the input of negative pole device for fusing 6 is arranged near the lower side of mounting panel 2, and communication terminal 9 is arranged on the right side of negative pole device for fusing 6.Wire casing 101 is arranged on the right side of negative pole device for fusing 6 and the direction of wire casing 101 is the bearing of trend of the arrangement perpendicular to negative pole device for fusing 6.The direction of wire casing 102 is parallel with the bearing of trend of the arrangement of positive pole device for fusing 5, positive pole device for fusing 5 is arranged on the upside of wire casing 102, namely arrange away from negative pole device for fusing 6, the input of positive pole device for fusing 5 is arranged near wire casing 102, and lightning arrester 8 is arranged on the right side of positive pole device for fusing 5.Power module 4 is arranged on the right side of lightning arrester 8.
Monitoring device 3 is arranged between negative pole device for fusing 6 and wire casing 102, and the input of monitoring device 3 is near the output of negative pole device for fusing 6.Outlet switch 7 is arranged on the left side of monitoring device 3, and the input of outlet switch 7 and the setting up and down and input of output are in upper end, and output is in lower end.
As shown in Figure 5, all Wiring ports of monitoring device 3 are all supporting is provided with binding post, this binding post is pluggable plug, input and output circuit effectively can be plugged with Wiring port by binding post and be connected, and, the wiring position of clear each Wiring port of sign on the housing of monitoring device 3, convenient and reliable wiring, avoids because plug loosens a series of adverse consequencess brought.Housing base is fixing on a mounting board with four assembling bolts.
As shown in Figure 6, the downside of the casing 1 of header box is provided with several string holes: 2 waterproof and breathable valve openings, 13,1 communication string holes 14,1 ground connection string holes 15, wire hole 16, entrance hole 17.Wherein, wire hole 16 and waterproof and breathable valve opening 13 are arranged on the left side of downside, and entrance hole 17 is arranged on the right side of wire hole 16, and communication string holes 14 is arranged on the right side of entrance hole 17, and ground connection string holes 15 is arranged on the right side of communication string holes 14.Entrance hole 17 is divided into two parts: positive pole entrance hole and negative pole entrance hole, and as shown in Figure 6, positive pole entrance hole is a row, and negative pole entrance hole is a row, and two row intervals are arranged, and during both positive and negative polarity inlet wire, positive pole inlet wire and negative pole inlet wire are independent separately, avoid mutual interference.All string holes are all provided with the waterproof terminal of high-protection level, and 2 waterproof and breathable valve openings are all provided with waterproof vent valve, and user's line cable is connected with header box internal component by waterproof terminal.The communications cable that communication interface on monitoring device connects is connected to the external world by this communication string holes.Each header box can select access 1 ~ 16 road photovoltaic group string according to the actual requirements.
Photovoltaic group string negative pole inlet wire cable is connected to the end of incoming cables of negative pole device for fusing 6 through waterproof terminal, the leading-out terminal of negative pole device for fusing 6 is connected to corresponding pluggable plug by cable, every road negative pole inlet wire connects a pluggable plug, then plug is inserted in the input port of corresponding shunt encapsulation monitoring device, after cylinder manifold, accesses the negative input of outlet switch 7.The input of negative pole device for fusing 6 is arranged on the lower side near mounting panel, and inlet wire is entered by downside, so negative pole inlet wire cable can be connected with the input of negative pole device for fusing 6 easily; The output of negative pole device for fusing 6 is arranged near the input port of monitoring device 3, and the outlet line of negative pole device for fusing 6 does not need bending just can directly be connected with monitoring device 3 inlet wire; Outlet switch 7 is arranged on the left side of monitoring device 3, and the outlet line of monitoring device 3 easily just can be connected with the input of outlet switch 7.
Photovoltaic group string positive pole inlet wire is connected to the input of positive pole device for fusing 5 after wire casing 101 and 102, and the output of positive pole device for fusing 5 accesses the electrode input end of outlet switch 7 after bus-bar.Similar with negative pole device for fusing 6, the input of positive pole device for fusing 5 is arranged near wire casing 102, is directly connected to the input of positive pole device for fusing 5 from wire casing 102 positive pole circuit out.
The outlet terminal 11 of outlet switch 7 in the lower left of mounting panel 2, because the wire hole 16 of header box is also in the lower left of header box, so outlet terminal 11 directly just can be connected to through outlet waterproof terminal by cable on the outgoing line busbar outside header box.In case, the yellowish green wire of all components and parts earth terminals is connected on the grounding copper bar 12 of body side.Case inside conductor pools together cabling at wire casing, achieves the specification of the line in casing like this, avoids the confusion of wiring, can ensure the good management of wire.
In addition, as shown in Figure 7, the function with master station communication can be realized by the communication terminal 9 in each header box, be convenient to form photovoltaic generation monitoring system.
In above-described embodiment, the cathode output end of photovoltaic group string connects the input of outlet switch by bus-bar, the cathode output end of photovoltaic group string connects the input of outlet switch by monitoring device, as other embodiment, the cathode output end of photovoltaic group string connects the input of outlet switch by monitoring device, the cathode output end of photovoltaic group string connects the input of outlet switch by bus-bar, at this moment, monitoring device gathers the line information of the positive pole of photovoltaic group string and carries out corresponding Treatment Analysis, correspondingly, in Fig. 4, positive pole device for fusing 5 and negative pole device for fusing 6 reversing of position mutually.
In above-described embodiment, power module carries out power taking from bus-bar and cylinder manifold, and then for monitoring device is powered, as other embodiment, power module can also use other way to take power or power module to be the energy storage devices such as storage battery.
In above-described embodiment, give the execution mode that a kind of concrete header box is laid, wherein, power module and monitoring device interval are arranged, and can ensure that forceful electric power light current is separated, reduction electromagnetic interference between the two, and, perfect heat-dissipating; Simultaneously, the setting of wire casing, the setting of the position between positive and negative electrode device for fusing and wire casing is also had to be all in order to line is convenient, negative pole incoming line directly connects monitoring device by negative pole device for fusing, and positive pole incoming line utilizes wire casing to collect carries out unifying cabling, connection in specification casing, avoids the confusion of line.Certainly, this is a kind of execution mode of optimization, as other embodiment, only can use wire casing 101, also can realize the unified cabling of positive pole circuit in header box; Or both positive and negative polarity device for fusing reversing of position, or wire casing 101 left side being arranged on device for fusing etc., as long as can meet the unified cabling using wire casing to realize circuit, the arrangement of each device in header box has a variety of, is not limited to the mode provided in this embodiment.
Be presented above concrete execution mode, but the utility model is not limited to described execution mode.The change carried out execution mode when not departing from principle of the present utility model and spirit, amendment, replacement and modification still fall in protection range of the present utility model.
Claims (10)
1. a header box, it is characterized in that, header box comprise in casing and casing, for installing the mounting panel of each electric elements, mounting panel is provided with two device for fusing and the first wire casing, described two device for fusing are respectively positive pole device for fusing and negative pole device for fusing; Described two device for fusing interval on the above-below direction of mounting panel is arranged, described two device for fusing rearrange by several fuses, the bearing of trend of the arrangement of one of them device for fusing is parallel with mounting panel side, and described first wire casing is arranged on the described right side of one of them device for fusing and the direction of described first wire casing is the bearing of trend of the arrangement perpendicular to one of them device for fusing described; The side corresponding with a side of described mounting panel of described casing is provided with entrance hole.
2. header box according to claim 1, it is characterized in that, one of them device for fusing described is negative pole device for fusing, and described negative pole device for fusing is in the downside of mounting panel, described positive pole device for fusing is in the upside of mounting panel, and a side of described mounting panel is the lower side of mounting panel; The downside of described casing is provided with described entrance hole.
3. header box according to claim 2, is characterized in that, the input of described negative pole device for fusing is arranged near the lower side of described mounting panel.
4. header box according to claim 3, it is characterized in that, described header box also comprises the second wire casing, described first wire casing is vertical with the second wire casing to be arranged, and described second wire casing arranges away from negative pole device for fusing and the direction of described second wire casing is parallel with the bearing of trend of the arrangement of described positive pole device for fusing.
5. header box according to claim 4, is characterized in that, described positive pole device for fusing is arranged on the upside of described second wire casing, and the input of described positive pole device for fusing is arranged near described second wire casing.
6. header box according to claim 5, it is characterized in that, described header box comprises monitoring device and outlet switch, and described monitoring device is arranged between negative pole device for fusing and the second wire casing, and the input of described monitoring device is near the output of described negative pole device for fusing; Described outlet switch is arranged on the left side of described monitoring device, and the input of described outlet switch and the setting up and down and input of output are in upper end.
7. header box according to claim 6, is characterized in that, the right side of described negative pole device for fusing is provided with communication module, and monitoring device connects described communication module; The right side of described positive pole device for fusing is provided with lightning arrester.
8. header box according to claim 7, it is characterized in that, the downside of the casing of described header box is also provided with wire hole and the string holes that communicates, wherein, wire hole is arranged on the left side of described downside, described entrance hole is arranged on the right side of wire hole, and described communication string holes is arranged on the right side of entrance hole; Described entrance hole is divided into two parts: positive pole entrance hole and negative pole entrance hole, and described positive pole entrance hole and negative pole entrance hole interval are arranged.
9. header box according to claim 8, is characterized in that, described mounting panel is also installed with power module, and described power module is arranged on the right side of described lightning arrester.
10. header box according to claim 6, it is characterized in that, each road photovoltaic group string all has cathode output end and cathode output end, the cathode output end of each road photovoltaic group string connects the input of corresponding bus-bar by described positive pole device for fusing, the output of described bus-bar exports two circuits: first line and the second circuit, described first line is connected to the electrode input end of described outlet switch, and described second connection is to the electrode input end of lightning arrester; The cathode output end of each road photovoltaic group string described is successively by exporting two articles of circuits after negative pole device for fusing and described monitoring device: tertiary circuit and the 4th circuit, described tertiary circuit is connected to the negative input of described outlet switch, and described 4th connection is to the negative input of described lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447988.6U CN204761392U (en) | 2015-06-25 | 2015-06-25 | Junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447988.6U CN204761392U (en) | 2015-06-25 | 2015-06-25 | Junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761392U true CN204761392U (en) | 2015-11-11 |
Family
ID=54476059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520447988.6U Active CN204761392U (en) | 2015-06-25 | 2015-06-25 | Junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761392U (en) |
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2015
- 2015-06-25 CN CN201520447988.6U patent/CN204761392U/en active Active
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