WO2010045786A1

WO2010045786A1 - Solar energy control system assembly

Info

Publication number: WO2010045786A1
Application number: PCT/CN2009/001177
Authority: WO
Inventors: 段正刚; 王新林
Original assignee: 苏州快可光伏电子有限公司
Priority date: 2008-10-24
Filing date: 2009-10-23
Publication date: 2010-04-29
Also published as: DE212009000164U1

Abstract

A solar energy control system assembly comprises a wiring case body (21), a case cover, a connecting wire, and a large-current cable connector. A wire-fixing groove (1) is provided in the wiring case body. A wiring terminal (2) is provided in the wire-fixing groove. A heat dissipation hole (3) is provided between wiring terminals. A wire-protective plate is provided on one side of the wiring case body, and a wiring assembly is provided on the other side. A wire-fixing part (5) is provided on the end head of the wiring assembly. The connecting wire is connected to the wire-fixing part. The large-current cable connector is connected to the out end of the connecting wire. The large-current cable connector comprises a male joint (22) and a female joint (23). The female joint is distributed with a contact surface (20). A conduit pipe (13) is provided on one end of the male joint, and a constraining structure is provided on the other end. A tenon (14) is provided at periphery of the conduit pipe. A mortise (18) is provided on one end of the female joint, and a constraining structure is also provided on the other end. The constraining structures of the male joint and the female joint are both provided with exterior hexangular wire-fixing parts. Cut ends of cables can be connected closely and fixed by the system assembly.

Description

Solar Control System Components Technical Field

The utility model relates to an assembly, in particular to a solar control system component. Background technique

At present, the solar control system junction boxes sold on the market are all integrated casting. Even if a few models are processed by the structure of the cover and the box body, the integral sealing of the glue is also adopted after forming, and the separation cannot be achieved once the internal electrical appliances are If the component fails, the control box must be completely removed to damage the solar panel and cause great waste. Moreover, the electrical components inside the junction box are connected by irreversible soldering, and it is very difficult to solder the ribbon into the box during assembly. If integrated ultrasonic welding is used, the degree of firmness is affected; if integrated injection is used, the molten high temperature plastic will burn the cable during injection molding. These defects have hindered the promotion of panel control junction boxes in the field of solar energy.

On the other hand, existing cable connectors often rely on the first bushing and the second bushing to connect the two cable ends that were originally separated. Such a connector is only a simple mechanical connection, and does not well take into account the guiding effect of the cable. After a period of practical use, the guiding ability of the cable is liable to decrease. Moreover, the commonly used connector fixing methods are often fixed by welding, which causes the cable connector to be irreversibly combined, and the cable cannot be disconnected again, and the cable can not be disconnected and maintained. Moreover, the existing connector often relies on a reed to position the cable, and the reed itself has no external structure limitation, so that the connecting ends of the two cables connected to the connector are prone to loosening. The above defects make the connection of the cable limited in many ways, and the connection operation process is cumbersome, which is not conducive to on-site installation, and its use performance needs to be improved. Summary of the invention

The object of the present invention is to overcome the above problems existing in the prior art and to provide a solar control system component.

The technical solution of the utility model is: a solar control system component, comprising a junction box body, a lid, The connecting wire and the high current cable connector are characterized in that: the junction box body is internally provided with a fixing line slot, the fixing line slot is provided with a connecting terminal, and the connecting terminal is provided with a heat dissipating cavity, and one side of the junction box body a retaining plate is provided, and a wiring assembly is arranged on the other side, a wire fixing device is arranged at the end of the wiring component, a connecting wire is connected to the wire fixing device, and a large current cable connector is connected to the outer end of the connecting wire, the large The current cable connector includes a male and a female head, and a contact surface is distributed on the female head. One end of the male head is provided with a conduit, the outer circumference of the conduit is provided with a bamboo shoot, and the other end is provided with a restraining structure, and one end of the female head is disposed. There is a card slot, and the other end is also provided with a restraint structure. The restraint structure of the male and female heads is mounted with a hexagonal wire retainer.

Further, in the above solar control system component, wherein: one end of the terminal is provided with a card slot, and the card slot is provided with a card elastic; the guard plate is distributed with a wire receiving cover; The utility model comprises a fixing frame, an auxiliary column and a card line are arranged in the fixing frame, the card line is surrounded by the auxiliary column, and one end of the card line extends out of the fixing frame.

Further, in the above solar control system component, wherein: the male head and the female head are respectively provided with pins, the outer wall of the pin is provided with a barbed piece, and the inner wall of the pin is provided with a miniature spring ring, and the male and female inner walls are respectively The self-locking card is distributed, and the barbed piece is in contact with the self-locking collar; the restraining structure and the inner wall of the wire fixing device are provided with matching threads, and the end of the restraining structure is provided with a blocking ring, which is a ring-shaped stacked fence piece The contact surface distributed on the female head is formed by a female recess, and the concave portion is provided with a fastening strip, and an end of the conduit provided at one end of the male end is provided with an expansion ring.

Further, in the above solar control system component, wherein: the junction box body has a reinforcing rib distributed therein, and the fixing device is also provided with a reinforcing rib; the junction box body is provided with a bayonet, and the corresponding position of the box cover A buckle is disposed, or a buckle is disposed on the body of the junction box, and a card slot is disposed at a corresponding position of the cover.

By adopting the technical scheme of the utility model, not only can the cable end of the cable to be connected be tightly connected, but also the combination of the restraining structure and the wire fixing device can be used, so that the broken end of the cable is completely fixed on the sleeve. That is to say, the degree of tightening of the damper can be determined by the degree of tightening of the wire splicer, and the cable of different pipe diameters can be accommodated, and even if it is used for a long time, no looseness will occur. More importantly, the utility model adopts an outer hexagonal wire fixing device, which does not need special tools, and can be conveniently installed or disassembled by the most common hexagonal wrench. At the same time, through the docking between the metal pins, the effective guiding performance requirements of the cable are ensured; the connector is combined by a buckle-like connection method, which can be realized. The quick connection and separation between the bushings not only facilitates the maintenance of the cable in the future, but also frees the assembler from the cumbersome joint installation process. The objects, advantages, and features of the invention are set forth and illustrated in the <RTIgt; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a solar control system assembly; FIG. 2 is a schematic view of the overall structure of the junction box body; FIG. 3 is a schematic structural view of the cover; FIG. 4 is a schematic perspective view of the male head; Schematic diagram of three-dimensional structure. The meanings of the various reference numerals in the figure are as follows:

1 fixing slot 2 terminal block

3 heat sinking hole 4 wire receiving cover

5 wire retainer 6 card wire shrapnel

7 fixed wire frame 8 auxiliary column

9 card lines 10 bayonet

11 buckle 12 rib

13 conduit 14 card bamboo shoots

15 Fence sheet 16 thread

17 expansion ring 18 card slot

19 fastening strip 20 contact surface

21 junction box body 22 male

23 Female embodiment As shown in Figures 1-5, a solar control system assembly includes a junction box body 21 having a cover thereon, and a high current cable connector extending from the junction box, which is special Wherein: the junction box body 21 is provided with a solid The wire slot 1 is provided with a terminal 2 in the fixed wire slot 1 , and the heat dissipation hole 3 is arranged between the terminal 2 , and a retaining wire is disposed on one side of the junction box body 21 , and the other side of the junction box body 21 is provided a wire fixing device 5; a connecting wire is arranged on the wire fixing device 5, and a high current cable connector is arranged at the end of the connecting wire; the high current cable connector comprises a male head 22 and a female head 23, a male One end of 22 is provided with a conduit 13 having a card shooter 14 at the periphery thereof and a restraining structure at the other end; the female end 23 is provided with a card slot 18 at the end, and the other end is provided with a restraining structure, and the female head 23 is provided. A contact surface 20 is disposed; the restraint structure is provided with an outer hexagonal wire retainer 5, and the restraining structure and the inner wall of the wire retainer 5 are provided with matching threads 16. When manufacturing, the overall appearance of the male head 22 and the female head 23 tends to be cylindrical, which makes it easier to prevent shrinkage during the injection molding process and to ensure product reliability.

According to the technical solution of the present invention, one end of the terminal 2 is provided with a card slot, and a card strip 6 is mounted in the card slot. Thereby, the bus bar of the external component can be quickly and firmly snapped by the elastic deformation of the card elastic piece 6 itself. Meanwhile, in order to facilitate the smooth integration between the wire introduced from the wire fixing device 5 and the junction box body 21, the wiring assembly includes a fixing frame 7, and the fixing frame 8 is provided in the fixing frame 7, and the card line 9 is surrounded. Around the auxiliary column 8, one end of the card line 9 extends beyond the fixing frame 7. Thus, the distribution position of the card line 9 can be limited by the auxiliary column 8. At the same time, the elastic deformation of the card strip 9 can be made better by the cooperation between the card line 9 and the auxiliary column 8 and the inner wall of the fixing frame 7, which facilitates clamping of the wire lead of the lead-in wire.

Further, in order to facilitate the stable fastening of the junction box as a whole and improve the waterproof performance, the junction box body 21 is provided with a bayonet 10, and the corresponding position on the lid is provided with a buckle 11; or, the junction box The body 21 is provided with a buckle 11 , and a corresponding position on the cover is provided with a bayonet 10 . In view of the fact that it is often necessary to connect a plurality of sets of wires to the junction box body 21, in order to increase the normal bending space of the wires, a wire accommodating cover 4 is distributed on the wire retaining plates. In the normal accommodation space of the wire accommodating cover 4, the space occupation problem of the protrusion after the wire is bent can be solved to the utmost extent. Further, in consideration of the firmness of the entire junction box applicable to the solar control system, the reinforcing ribs 12 are distributed in the junction box body 21, and the reinforcing bars 12 are also provided on the fixing device 5.

The component structure of the solar control system of the utility model has a sufficient internal cavity in the junction box body 21 through the positional matching between the heat dissipation cavity 3 and the terminal 2, thereby ensuring superior heat dissipation performance. At the same time, through the terminal The cooperation between the card slot and the card spring 6 in the sub- 2 ensures the convenience, firmness and reliability of the connection of the bus bar. Furthermore, a plurality of sets of terminal blocks 2 are distributed in the junction box body 21, so that the junction box body 21 can better carry a large current.

4 and 5, the contact surface 20 is concavely formed in the female head 23, and the inner concave portion is provided with a fastening strip 19 for the user to grasp the female head 23, which is advantageous for the male head 22 and the female head 23 to be smooth. connection. The presence of the contact surface 20 prevents stress from being concentrated on the bamboo shoots 14 to prevent breakage. At the same time, relying on the function of the rib 12, the structure of the large current cable connector can be made more stable. Considering that the male 22 and the female 23 respectively have to be optimally restrained from the wires to which they are connected, the ends of the restraint structure are distributed with blocking plugs, which are formed by annularly stacked fence sheets 15 The end of the conduit 13 is provided with an expansion ring 17, which can increase the joint surface between the male head 22 and the female head 23, so that the two can be firmly combined.

For the practical use of the present invention, in order to prevent the conduction performance of the interface between the male 22 and the female 23 from being connected, the male 22 and the female 23 are respectively provided with pins. Moreover, the outer wall of the pin is provided with a barbed piece, and the inner wall of the pin is provided with a spring coil, and the male head 22 and the inner wall of the female branch are provided with a self-locking collar, and the barbed piece is in contact with the self-locking cassette to ensure the pin and the male The combination of the head 22 and the female head 23 is firm. The pins can be fabricated by copper-plated tin plating process, which is not damaged by corrosion during long-term use and meets the requirements of cable guidance. The cable connector is available in PC/PA plastic and can withstand ambient temperatures from -40 degrees Celsius to +90 degrees Celsius.

The use process of the cable connector in the utility model is as follows: First, a metal pin is sleeved on two broken ends of the cable waiting to be connected, and a male pin 22 is connected to the cable end, for example, a metal pin with a cable is worn. After passing through the wire retainer 5, it is pushed into the male head 22. Since the outer wall of the pin is provided with a barb piece, it is locked by the self-locking ring of the inner wall of the male head 22 after entering the male head 22, and cannot be pulled out twice, thereby ensuring the reliability of fixing the cable in the male head 22. . Subsequently, the wire fixing device 5 is placed on the restraining structure formed by the annularly stacked fence sheets 15 , and the thread fastening device 16 is used as a guide according to the end of the restraining structure and the inner wall of the wire fixing device 5 , and the wire fastening device 5 is rotated. . During this process, the fence piece 15 is continuously restrained by the wire retainer 5, and is gradually pushed forward from each other, so that the outer periphery of the cable located in the male head 22 is continuously squeezed by the fence piece 15 to be positioned and fastened. fixed. Similarly, the cable ends are fixed in a similar manner Go to the female head 23. Complete the cable assembled by the male head 22 and the female head 23, insert the remaining broken end into the wire fixing device 5 of the solar junction box, open the card line 9, insert the cable end, and then use the hex wrench to lock the fastening device. 5. Through this connection, the cable can be subjected to greater tension between the connector and the solar junction box, thereby ensuring the effective conductance of the cable and better electrical safety.

In actual use, the male 22 conduit 13 attached to the other device is inserted into the female head 23. Since the outer periphery of the conduit 13 is provided with a card saw 14, and the female end 23 is provided with a card slot 10, the card bamboo 14 is inserted into the card slot 10, so that the two sleeves can be quickly clamped. At the same time that the two are clamped, the metal pins also abut each other, thereby making the conduction of the cable possible. In the above-mentioned snapping process, due to the presence of the contact surface 20, the user can conveniently grasp the male head 22 and the female head 23 to conveniently realize the combination of the two. Moreover, with the snap-on design, if it is necessary to perform a disconnect maintenance on the connected cable in the future, it is only necessary to manually press a pressure on the card shoot 14 to release the card shooter 14 from the card slot 10, thereby The male 22 is separated from the female 23 to separate the cable. Furthermore, the expansion ring 17 provided at the end of the male 22 conduit 13 allows the male head 22 to be inserted into the female head 23 for expansion limit, which effectively meets the requirements of waterproof and dustproof. The expansion ring 17 can be sealed with a "0" shape, which is beneficial to improve the waterproof and dustproof effect.

It can be seen from the above texts and in conjunction with the accompanying drawings that, after adopting the utility model, not only can the cable ends that need to be connected be tightly connected, but also the combination of the restraining structure and the wire fixing device can be used, so that the cable ends are completely fixed. On the casing. That is to say, the degree of tightening of the damper can be determined by the degree of tightening of the wire splicer, and the cable of different pipe diameters can be accommodated, and even if it is used for a long time, it will not be loose. More importantly, the utility model adopts an outer hexagonal wire fixing device, which does not need special tools and can be conveniently installed or disassembled by the most common hexagonal wrench. At the same time, the effective communication performance requirements of the cable are ensured by the docking between the metal pins.对 Combining the connectors with a snap-like connection allows for quick connection and separation between the bushings, which facilitates the maintenance of the cable in the future and frees the assembler from the cumbersome joint installation process.

Of course, the above is only a specific application example of the present invention, and does not impose any limitation on the scope of protection of the present invention. In addition to the above-described embodiments, the present invention may have other embodiments. Any technical solution formed by equivalent replacement or equivalent transformation is within the scope of the claimed invention.

Claims

Patent claim

1. A solar control system component, comprising a junction box body, a cover, a connecting line and a high current cable connector, wherein: the junction box body is internally provided with a fixing slot, and the fixing slot is provided with a connecting terminal, the wiring There are heat dissipation holes between the terminals, one side of the junction box body is provided with a retaining wire plate, and the other side is provided with a wiring assembly, the end of the wiring assembly is provided with a wire fixing device, and the wire fixing device is connected with a connecting wire, and is connected The outer end of the wire is connected with a high current cable connector, and the high current cable connector comprises a male and a female head, and a contact surface is distributed on the female head, and one end of the male head is provided with a conduit, and the outer periphery of the conduit is provided The card has a restraint structure at the other end. The female head is provided with a card slot at one end and a restraining structure at the other end. The outer hexagonal wire retainer is mounted on the restraint structure of the male and female heads.

2. The solar control system assembly according to claim 1, wherein: one end of the terminal is provided with a cable slot, and a cable spring is mounted in the cable slot.

3. The solar control system assembly of claim 1 wherein: said retainer plate is distributed with a wire receiving cover.

4. The solar control system assembly according to claim 1, wherein: the wiring assembly comprises a fixing frame, and the auxiliary line and the card line are arranged in the fixing frame, and the card line is surrounded by the auxiliary column, and the card line is One end extends out of the wire frame.

5. The solar control system assembly according to claim 1, wherein: the male head and the female head are respectively provided with pins, the outer wall of the pin is provided with a barbed piece, and the inner wall of the pin is provided with a miniature spring ring, The inner wall of the head and the mother is distributed with a self-locking collar, and the barbed piece is in contact with the self-locking collar.

6. The solar control system assembly according to claim 1, wherein: the restraining structure and the inner wall of the wire fixing device are provided with matching threads, and the end of the restraining structure is provided with a blocking ring, which is a ring-shaped stacked fence piece. Composition.

7. The solar energy control system assembly of claim 1 wherein: said female head is distributed The contact surface is formed by a female concave portion, and the concave portion is provided with a fastening strip.

8. The solar control system assembly of claim 1 wherein: the end of the conduit provided at one end of the male end is provided with an expansion ring.

9. The solar control system assembly according to claim 1, wherein: the junction box has a reinforcing rib distributed therein, and the reinforcing wire is also provided with a reinforcing rib.

The solar control system assembly according to claim 1, wherein: the junction box body is provided with a bayonet, and the corresponding position of the lid is provided with a buckle; or the junction box body is provided with a card Buckle, there is a card slot at the corresponding position of the cover.