CN211239787U

CN211239787U - Disconnect-type solar junction box

Info

Publication number: CN211239787U
Application number: CN201922449575.2U
Authority: CN
Inventors: 劳增仕
Original assignee: Kanglian Precision Electromechanical Shenzhen Co ltd
Current assignee: Kanglian Precision Electromechanical Shenzhen Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-11
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a solar junction box, concretely relates to disconnect-type solar junction box, it includes: the end part box bodies are provided with end part accommodating grooves and clamping connection cavities, communication holes for communicating the clamping connection cavities and the end part accommodating grooves are formed between the clamping connection cavities and the end part accommodating grooves, and the bottoms of the end part box bodies are provided with first conductor connecting ports for communicating the bottoms of the end part accommodating grooves; the end part conductive assemblies are arranged in the end part accommodating grooves, and the end part conductive assemblies in the two end part boxes are electrically connected in series through the first conductor connecting ports; one end of each of the two external cables penetrates through the communication holes of the two end box bodies respectively and is electrically connected with the end conductive assembly; fixed subassembly, including catch, buckle and waterproof circle, the joint intracavity is located to the buckle card, the draw-in groove has been seted up at the middle part of buckle, the catch card is located the draw-in groove and is kept away from one side of intercommunicating pore, the utility model discloses waterproof performance has.

Description

Disconnect-type solar junction box

Technical Field

The utility model relates to a solar junction box, concretely relates to disconnect-type solar junction box.

Background

The junction box of the solar cell module is very important in the composition of the solar cell module, and mainly plays a role in connecting electric power generated by the solar cell with an external circuit. The junction box is adhered to the back plate of the assembly through silica gel, the outgoing lines in the assembly are connected together through the internal lines in the junction box, and the internal lines are connected with the external cables to enable the assembly to be conducted with the external cables.

However, when the existing junction box is used, the water drops penetrate into the box body to cause the circuit inside the box body to easily break down due to poor waterproof performance of the box body.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a disconnect-type solar junction box, it has waterproof performance.

The utility model provides a technical scheme that its technical problem adopted is:

a split solar junction box, comprising:

the end part box bodies are provided with end part accommodating grooves and clamping connection cavities, communication holes for communicating the clamping connection cavities and the end part accommodating grooves are formed between the clamping connection cavities and the end part accommodating grooves, and the bottoms of the end part box bodies are provided with first conductor connecting ports for communicating the bottoms of the end part accommodating grooves;

the end part conductive assemblies are arranged in the end part accommodating grooves, and the end part conductive assemblies in the two end part boxes are electrically connected in series through the first conductor connecting ports;

one end of each of the two external cables penetrates through the communication holes of the two end box bodies respectively and is electrically connected with the end conductive assembly;

the fixing assembly comprises a locking ring, a buckle and a waterproof ring, the buckle is clamped in the clamping cavity, a clamping groove is formed in the middle of the buckle, the locking ring is clamped in one side, away from the communication hole, of the clamping groove, one end of the waterproof ring is clamped in one side, close to the communication hole, of the clamping groove, one end, away from the buckle, of the waterproof ring is tightly clamped with the communication hole, the locking ring is clamped on an external cable, and the waterproof ring is tightly sleeved on the external cable.

Further, two box body in the middle of being equipped with a plurality of between the tip box body, middle holding tank has been seted up to middle box body, the second conductor connector of holding tank bottom in the middle of the intercommunication is seted up to the bottom of middle box body, be equipped with middle conducting assembly in the middle holding tank, middle conducting assembly in two adjacent middle box bodies passes through second conductor connector electric property series connection, tip conducting assembly in the tip box body and the middle conducting assembly in the adjacent middle box body pass through first conductor connector and second conductor connector electric connection.

Furthermore, the end conductive assembly comprises a first conductive sheet, an end diode and a second conductive sheet which are electrically connected in series in sequence, and the first conductive sheet is electrically connected with an external cable; the middle conductive assembly comprises a third conductive sheet, a middle diode and a fourth conductive sheet which are sequentially connected in series, the second conductive sheet of the end conductive assembly is connected in series with the third conductive sheet of the adjacent middle conductive assembly, and the fourth conductive sheet of the middle conductive assembly is connected in series with the third conductive sheet of the adjacent middle conductive assembly.

Furthermore, the second conductive sheet is provided with an end electrical interface with an opening facing the first conductor connector, the third conductive sheet and the fourth conductive sheet are provided with middle electrical interfaces, each middle box body is provided with two second conductor connectors, and the two second conductor connectors respectively face the middle electrical interface of the third conductive sheet and the middle electrical interface of the fourth conductive sheet.

Furthermore, locating holes are formed in the first conducting strip, the second conducting strip, the third conducting strip and the fourth conducting strip, and locating columns in clamping fit with the locating holes are arranged in the end containing groove and the middle containing groove respectively.

Furthermore, a limiting part is arranged on the side wall of the lower end of the positioning column.

Furthermore, two opposite side walls of the first conductor connector are respectively provided with a first guide part, the lower end of the first guide part is fixedly connected with the bottom of the end accommodating groove, and one side of the first guide part, which is close to the first conductor connector, is gradually inclined from bottom to top in the direction close to the end electrical interface; the two opposite side walls of the second conductor connector are respectively provided with a second guide part, the lower end of the second guide part is fixedly connected with the bottom of the middle accommodating groove, and one side of the second guide part, which is close to the central axis of the second conductor connector, is gradually inclined from bottom to top towards the direction close to the middle electrical connector.

Furthermore, the side that first conducting strip and second conducting strip are close to each other is equipped with respectively with tip diode both ends joint complex first joint portion, the side that third conducting strip and fourth conducting strip are close to each other is equipped with respectively with middle diode both ends joint complex second joint portion.

Furthermore, a metal core is arranged at one end, close to the first conducting strip, of the external cable, a third clamping and connecting part is arranged at one side, close to the metal core, of the first conducting strip, and a mounting groove matched with the metal core in a clamping and connecting mode is formed in the third clamping and connecting part.

Furthermore, one end, far away from the end box body, of the two external cables is connected with the male end connector and the female end connector respectively.

The utility model has the advantages that:

the utility model discloses a waterproof circle is closely overlapped on external connection cable, and waterproof circle and the inseparable joint of intercommunicating pore, makes the water droplet can not be in the tip box body along external cable inflow, has protected the conductive component in the tip box body, prolongs the life of this disconnect-type solar junction box. The utility model discloses still set up the buckle, buckle and the cooperation of joint chamber joint, and catch and waterproof circle card are located in the draw-in groove of buckle, make external cable be close to the one end and the tip box body firm in connection of tip box body, and difficult the emergence is removed, and then guarantee that external cable and tip conducting assembly remain throughout to be connected, guarantee that external cable and tip conducting assembly can not take place the phenomenon of opening circuit, and the setting of buckle and catch also can block the water droplet and flow to tip box body inside, further improve the utility model discloses a waterproof performance. The utility model discloses a disconnect-type solar junction box is when using, is connected with the tip conducting component electricity in the tip holding tank through the first conductor connector that passes tip box body bottom with the conductor on the solar energy component, then fixes the tip box body on solar module's backplate with the gluing agent, makes the tip conducting component in two tip boxes realize establishing ties, has reduced the use amount of cable, practices thrift the cost.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall assembly of an embodiment of the present invention;

FIG. 2 is a structural exploded view of the end box and the middle box of the embodiment of the present invention;

fig. 3 is a top view of an end cartridge according to an embodiment of the present invention.

Description of reference numerals: 10. an end cartridge; 11. an end receiving groove; 12. a clamping cavity; 13. a communicating hole; 14. a first conductor connection port; 15. an end box cover; 16. a first guide member; 20. an end conductive assembly; 21. a first conductive sheet; 22. a terminal diode; 23. a second conductive sheet; 24. an end electrical interface; 25. a first clamping part; 26. a third clamping connection part; 27. mounting grooves; 30. connecting a cable externally; 31. a metal core; 32. a male end connector; 33. a female end connector; 40. a fixing assembly; 41. a locking ring; 42. buckling; 421. a card slot; 43. a waterproof ring; 50. a middle box body; 51. a middle accommodating groove; 52. a middle box cover; 53. a second conductor connection port; 54. a second guide member; 60. an intermediate conductive component; 61. a third conductive sheet; 62. a middle diode; 63. a fourth conductive sheet; 64. an intermediate electrical interface; 65. a second clamping part; 70. positioning holes; 71. a positioning column; 72. a limiting part.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

A split solar junction box, as shown in fig. 1-3, comprising: two end boxes 10, two sets of end conductive assemblies 20, two external cables 30 and two sets of fixing assemblies 40.

Every tip box body 10 has seted up tip holding tank 11 and joint chamber 12, set up the intercommunicating pore 13 that communicates joint chamber 12 and tip holding tank 11 between joint chamber 12 and the tip holding tank 11, the first conductor connector 14 of the 11 tank bottoms of intercommunication tip holding tank is seted up to the bottom of tip box body 10. Specifically, the opening part of tip holding tank 11 is equipped with the tip lid 15 with 11 joint cooperations of tip holding tank. The end conductive elements 20 are disposed in the end receiving slots 11, and the end conductive elements 20 in the two end cases 10 are electrically connected in series through the first conductor connecting ports 14. One end of each of the two external cables 30 penetrates through the communication holes 13 of the two end box bodies 10 to be electrically connected with the end conductive assembly 20, and when the terminal box body is used in a specific manner, one end of each of the two external cables 30, which is far away from the end box body 10, is electrically connected with an external electric connector. Each group of fixing assemblies 40 includes a lock ring 41, a buckle 42 and a waterproof ring 43, the buckle 42 is clamped in the clamping cavity 12, a clamping groove 421 is formed in the middle of the buckle 42, the lock ring 41 is clamped on one side of the clamping groove 421 away from the communication hole 13, one end of the waterproof ring 43 is clamped on one side of the clamping groove 421 close to the communication hole 13, one end of the waterproof ring 43 away from the buckle 42 is tightly clamped with the communication hole 13, the lock ring 41 is clamped on the external cable 30, and the waterproof ring 43 is tightly sleeved on the external cable 30.

The existing separated solar junction box has a gap at the joint of the cable and the box body, so that water drops easily flow into the box body along the cable, and the phenomenon that conductive components inside the box body are damaged or short-circuited is caused. To this problem, the utility model discloses a closely overlap waterproof circle 43 on external cable 30, and waterproof circle 43 and the inseparable joint of intercommunicating pore 13, make the water droplet can not flow into in the tip box body 10 along external cable 30, protected the conductive component in the tip box body 10, prolong the life of this disconnect-type solar junction box. The utility model discloses buckle 42 has still been set up, buckle 42 and the cooperation of joint 12 joints in joint chamber, and catch 41 and waterproof circle 43 card are located in buckle 42's draw-in groove 421, make external cable 30 be close to the one end and the tip box body 10 firm in connection of tip box body 10, and difficult emergence is removed, and then guarantees that external cable 30 and tip conducting component 20 remain connected throughout, guarantees that external cable 30 and tip conducting component 20 can not take place the phenomenon of opening circuit. And the setting of buckle 42 and catch 41 also can block the water droplet and flow to the inside of tip box body 10, further improves the utility model discloses a waterproof performance. The utility model discloses a disconnect-type solar junction box is when using, through the first conductor connector 14 that passes the conductor on the solar energy component bottom the tip box body 10 with the tip conducting component 20 electricity in the tip holding tank 11 be connected, then fix tip box body 10 on solar energy battery pack's backplate with the gluing agent, make the tip conducting component 20 in two tip box bodies 10 realize establishing ties, reduced the use amount of cable, practice thrift the cost.

Further, two box body 50 in the middle of being equipped with a plurality of between the tip box body 10, holding tank 51 in the middle of middle 51, it is concrete that middle holding tank 51's opening part is equipped with and middle holding tank 51 joint complex middle lid 52. The bottom of the middle box body 50 is provided with a second conductor connecting port 53 communicated with the bottom of the middle accommodating groove 51, a middle conductive component 60 is arranged in the middle accommodating groove 51, the middle conductive components 60 in the two adjacent middle box bodies 50 are electrically connected in series through the second conductor connecting port 53, and the end conductive component 20 in the end box body 10 and the middle conductive component 60 in the adjacent middle box body 50 are electrically connected through the first conductor connecting port 14 and the second conductor connecting port 53. Specifically, in this embodiment, two intermediate boxes 50 are provided, and in other embodiments, one, three, or four intermediate boxes 50 may also be provided.

When the solar cell module is used, the conductor on the solar cell module passes through the second conductor connecting port 53 at the bottom of the middle box body 50 to be electrically connected with the middle conductive assembly 60 in the middle accommodating groove 51, so that the end conductive assembly 20 in the end box body 10 is connected with the middle conductive assembly 60 in series.

Specifically, the end portion conductive assembly 20 includes a first conductive sheet 21, an end portion diode 22 and a second conductive sheet 23 which are electrically connected in series in sequence, and the first conductive sheet 21 is electrically connected with an external cable 30; the middle conductive assembly 60 comprises a third conductive sheet 61, a middle diode 62 and a fourth conductive sheet 63 which are sequentially connected in series, the second conductive sheet 23 of the end conductive assembly 20 is connected in series with the third conductive sheet 61 of the adjacent middle conductive assembly 60, and the fourth conductive sheet 63 of the middle conductive assembly 60 is connected in series with the third conductive sheet 61 of the adjacent middle conductive assembly 60. Specifically, the third conductive sheet 61 and the fourth conductive sheet 63 have the same structure, and in other embodiments, when one middle box 50 is provided, the second conductive sheets 23 of the two end boxes 10 are electrically connected to the third conductive sheet 61 and the fourth conductive sheet 63 in the middle box 50, respectively.

Further, in order to facilitate the connection between the second conductive sheet 23 and the conductor on the solar cell panel, the second conductive sheet 23 is provided with the end electrical interface 24 with the opening facing the first conductor connector 14, when in use, the conductor on the solar cell panel is inserted into the end electrical interface 24 between the first conductor connector 14 and the second conductive sheet 23 to be clamped, so that the solar cell panel is stably connected with the second conductive sheet 23, and the second conductive sheet 23 is not easy to break away from the conductor to cause a circuit breaking phenomenon.

In order to facilitate the connection between the middle conductive assembly 60 and the conductor on the solar panel, the middle electrical interface 64 is disposed on each of the third conductive plate 61 and the fourth conductive plate 63, each of the middle box 50 is disposed with two second conductor connectors 53, and the two second conductor connectors 53 respectively face the middle electrical interface 64 of the third conductive plate 61 and the middle electrical interface 64 of the fourth conductive plate 63. When the solar panel is used, the conductors on the adjacent solar panels are respectively inserted into the second conductor connecting port 53 and the middle electrical interfaces 64 on the third conducting strip 61 and the fourth conducting strip 63 to be clamped, so that the solar panels are stably connected with the third conducting strip 61 and the fourth conducting strip 63, the solar panels are not easy to separate from each other to cause a circuit breaking phenomenon, and the adjacent cell panel groups are connected in series.

Furthermore, the first conducting strip 21, the second conducting strip 23, the third conducting strip 61 and the fourth conducting strip 63 are all provided with positioning holes 70, and positioning columns 71 in clamping fit with the positioning holes 70 are respectively arranged in the end accommodating groove 11 and the middle accommodating groove 51. The setting of locating hole 70 and reference column 71 makes first conducting strip 21, second conducting strip 23, third conducting strip 61 and fourth conducting strip 63 after the installation can not take place to remove, and is fixed in tip holding tank 11 and middle holding tank 51 steadily, is favorable to guaranteeing the utility model discloses a disconnect-type solar junction box can last normal work, does not take place the phenomenon of opening a circuit.

Furthermore, in order to prevent the first conductive sheet 21, the second conductive sheet 23, the third conductive sheet 61 and the fourth conductive sheet 63 from sliding toward the bottom of the positioning column 71, a limiting portion 72 is disposed on a side wall of the lower end of the positioning column 71, so that the first conductive sheet 21, the second conductive sheet 23, the third conductive sheet 61 and the fourth conductive sheet 63 are fixed at the middle position of the positioning column 71, and a worker can conveniently install the end diode 22 and the middle diode 62 subsequently.

Further, in order to facilitate workers to quickly insert conductors on the solar cell panel into the end electrical interface 24 and the middle electrical interface 64, two opposite side walls of the first conductor connector 14 are respectively provided with a first guide 16, the lower end of the first guide 16 is fixedly connected with the bottom of the end accommodating groove 11, and one side of the first guide 16 close to the first conductor connector 14 is gradually inclined from bottom to top in a direction close to the end electrical interface 24; the two opposite side walls of the second conductor connector 53 are respectively provided with a second guide part 54, the lower end of the second guide part 54 is fixedly connected with the bottom of the middle accommodating groove 51, one side of the second guide part 54 close to the central axis of the second conductor connector 53 is gradually inclined from bottom to top towards the direction close to the middle electrical interface 64, so that the conductors on the solar panel can be smoothly inserted into the end electrical interface 24 and the middle electrical interface 64 along the inclined direction of the first guide part 16 and the second guide part 54, and the conductors can be inserted without aligning the positions of the end electrical interface 24 and the middle electrical interface 64 by workers, thereby being beneficial to improving the installation efficiency.

Further, the side edges of the first conducting strip 21 and the second conducting strip 23 close to each other are respectively provided with a first clamping portion 25 which is matched with the two ends of the end diode 22 in a clamping manner, and the side edges of the third conducting strip 61 and the fourth conducting strip 63 close to each other are respectively provided with a second clamping portion 65 which is matched with the two ends of the middle diode 62 in a clamping manner.

The setting of first joint portion 25 makes tip diode 22 can dismantle with first conducting strip 21 and second conducting strip 23 and be connected, and setting up of second joint portion 65 makes middle diode 62 can dismantle with third conducting strip 61 and fourth conducting strip 63 and be connected, compares the mode of welding and sticky fixed, the utility model discloses a setting of first joint portion 25 and second joint portion 65 makes things convenient for middle diode 62 and tip diode 22's installation and maintenance more.

Further, the one end that external cable 30 is close to first conducting strip 21 is equipped with metal core 31, one side that first conducting strip 21 is close to metal core 31 is equipped with third joint portion 26, third joint portion 26 is seted up and is connected complex mounting groove 27 with metal core 31 joint.

The setting of metal core 31 and mounting groove 27 is convenient for external cable 30 and first conducting strip 21 to carry out electric connection, and because the slot-like structure of mounting groove 27 is the parcel state to the outer wall of metal core 31, compares metal core 31 and first conducting strip 21 direct contact and is connected or adhesive bonding, the utility model discloses a setting up of mounting groove 27 has increased the area of contact with metal core 31, more is favorable to the electric current on external cable 30 and the first conducting strip 21 to flow through, connects more stably, is difficult for taking place the phenomenon of opening circuit.

Further, in order to facilitate the utility model discloses a disconnect-type solar junction box and outside electric connector intercommunication, two public end connector 32 and female end connector 33 are connected respectively to the one end that tip box body 10 was kept away from to external cable 30.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. A disconnect-type solar junction box which characterized in that: the method comprises the following steps:

2. The breakaway solar junction box of claim 1, wherein: two box body in the middle of being equipped with a plurality of between the tip box body, middle holding tank has been seted up to middle box body, the second conductor connector of holding tank bottom in the middle of the intercommunication is seted up to the bottom of middle box body, be equipped with middle conducting component in the middle holding tank, middle conducting component in two adjacent middle box bodies passes through second conductor connector electric property series connection, tip conducting component in the tip box body and the middle conducting component in the adjacent middle box body pass through first conductor connector and second conductor connector electric connection.

3. The breakaway solar junction box of claim 2, wherein: the end conductive assembly comprises a first conductive sheet, an end diode and a second conductive sheet which are electrically connected in series in sequence, and the first conductive sheet is electrically connected with an external cable; the middle conductive assembly comprises a third conductive sheet, a middle diode and a fourth conductive sheet which are sequentially connected in series, the second conductive sheet of the end conductive assembly is connected in series with the third conductive sheet of the adjacent middle conductive assembly, and the fourth conductive sheet of the middle conductive assembly is connected in series with the third conductive sheet of the adjacent middle conductive assembly.

4. The breakaway solar junction box of claim 3, wherein: the middle box body is provided with two second conductor connectors, and the two second conductor connectors respectively face the middle electrical interface of the third conducting strip and the middle electrical interface of the fourth conducting strip.

5. The breakaway solar junction box of claim 4, wherein: locating holes are formed in the first conducting strip, the second conducting strip, the third conducting strip and the fourth conducting strip, and locating columns matched with the locating holes in a clamping mode are arranged in the end containing groove and the middle containing groove respectively.

6. The breakaway solar junction box of claim 5, wherein: and the side wall at the lower end of the positioning column is provided with a limiting part.

7. The breakaway solar junction box of claim 5, wherein: the two opposite side walls of the first conductor connector are respectively provided with a first guide part, the lower end of the first guide part is fixedly connected with the bottom of the end accommodating groove, and one side of the first guide part, which is close to the first conductor connector, is gradually inclined from bottom to top in the direction close to the end electric connector; the two opposite side walls of the second conductor connector are respectively provided with a second guide part, the lower end of the second guide part is fixedly connected with the bottom of the middle accommodating groove, and one side of the second guide part, which is close to the central axis of the second conductor connector, is gradually inclined from bottom to top towards the direction close to the middle electrical connector.

8. The breakaway solar junction box of claim 3, wherein: the side that first conducting strip and second conducting strip are close to each other is equipped with respectively with tip diode both ends joint complex first joint portion, the side that third conducting strip and fourth conducting strip are close to each other is equipped with respectively with middle diode both ends joint complex second joint portion.

9. The breakaway solar junction box of claim 3, wherein: the one end that external cable is close to first conducting strip is equipped with the metal core, one side that first conducting strip is close to the metal core is equipped with third joint portion, third joint portion offer with metal core joint complex mounting groove.

10. The breakaway solar junction box of claim 1, wherein: and one end of the external cable, which is far away from the end box body, is connected with the male end connector and the female end connector respectively.