A multi-PIN integrated board-to-line photovoltaic connector

Abstract

The present invention discloses a multi-PIN integrated board-end to line-end photovoltaic connector, comprising a male end device, a male end limiting device, a female end device, a line end fixer, and an unlocking tool. The male end device is tightly connected to the male end limiting device, the male end device is connected to the female end device, the female end device is connected to the male end limiting device, the line end fixer is tightly connected to the male end device, the unlocking tool is inserted into the female end device, the male end limiting device is used as a limitation of the installation position to prevent the male end from being installed too deep or too shallow, and to ensure that the connector will not have poor contact, the male end device and the female end device are installed with each other and the structure is locked after installation to achieve the purpose of stable connection, the male end device and the female end device can only be separated by a corresponding unlocking tool, and the line end fixer is used to fix the line end.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic connectors, and in particular to a multi-PIN integrated board-end to line-end photovoltaic connector. Background Art

[0002] Most of the photovoltaic connectors on the market are single-pin, line-to-line-end designs, or multi-pin, line-to-board-end designs.

[0003] When it comes to the connection problem between the wire end and the board end in a small space, the impedance of a single PIN is relatively high, which will cause the current to decrease and increase the heat, causing the connector to catch fire. At the same time, most of them are only wire-to-wire designs. Multi-PIN has higher processing requirements, higher processing costs, expensive prices, and larger volumes, which is not conducive to the connection between the wire end and the board end in a small space. It is also extremely inconvenient for manual installation. At the same time, when the connector is connected, the connected wire end will be subject to the pulling force of the connected object, which will shorten the service life of the wire end and may cause the connecting wire to short-circuit and catch fire, causing a fire. Summary of the invention

[0004] The object of the present invention is to provide a multi-PIN integrated board-end to line-end photovoltaic connector to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A multi-PIN integrated board-end to line-end photovoltaic connector, the photovoltaic connector comprises a male end device, a male end limiting device, a female end device, a line end fixer, and an unlocking tool. The male end device is tightly connected to the male end limiting device, the male end device is connected to the female end device, the female end device is connected to the male end limiting device, the line end fixer is tightly connected to the male end device, and the unlocking tool is inserted into the female end device.

[0007] The male end limit device serves as a limit for the installation position to prevent the female end from being installed too deep or too shallow, ensuring that the connector will not have poor contact. The male end device and the female end device are installed with each other and the structure is locked after installation to achieve the purpose of stable connection. The male end device and the female end device can only be separated by the corresponding unlocking tool. The wire end fixer is used to balance the tension of wire ends of different lengths on the connected objects. The thicker the connected wire end, the larger the angle of the wire end fixer. The larger the angle, the increased friction between the wire end and the wire end fixer, which decomposes the tension on the wire end and reduces the size of the tension on the wire end, which can extend the service life of the wire end and increase the use time of the wire end.

[0008] Furthermore, the male end device includes a male end fixing seat, a male end socket, and a spring limiter. The male end fixing seat is fastened to the male end socket, the male end fixing seat is connected to the male end limiting device, the male end socket is connected to the female end device, the spring limiter is clamped to the female end device, the male end socket is fastened to the spring limiter, and the male end fixing seat is provided with limiting holes, and there are four limiting holes.

[0009] The male end fixing base is used as the installation basis for installing other components. The male end socket is used to be installed with the female end device. The spring limiter is used to be connected with the female end device. The female end device and the male end socket are locked after installation. The limit hole is used to install the male end limit device.

[0010] Furthermore, the male end limit device includes a limit plate, a male end limiter, and a limit fixture. The limit plate is fastened to the male end limiter, the limit plate is fastened to the limit fixture, the male end limiter is inserted into the female end device through the limit hole, and the limit fixture is fastened to the male end fixing seat.

[0011] The limit plate is used as an installation basis for the installation of other components. The male end limiter is used as a limit device, which passes through the limit hole and contacts the female end device to limit the installation position of the female end device to prevent the female end device from not being installed in the corresponding position. The limit fixer is used as a fixer to fix the limit plate to the male end fixing seat.

[0012] Furthermore, the female end device includes a female end shell, a crimping terminal, a retaining spring, a crown spring, a first waterproof ring, a second waterproof ring, and a female end plug. The female end shell is clamped with the female end plug, the retaining spring is sleeved on the crimping terminal, the retaining spring is clamped with the female end plug, the crown spring is arranged in the crimping terminal, the first waterproof ring and the second waterproof ring are placed on the female end plug, and the first waterproof ring and the second waterproof ring are in close contact with the female end plug and the female end shell, the female end shell is abutted against the male end fixing seat, and a male end limiter is inserted in the female end plug.

[0013] The female end housing is used as a protective part to protect other components from being directly exposed to the external environment. The crimping terminal is used to install the wire end. The retaining spring is used to fix the crimping terminal to the female end plug. The crown spring is used to clamp and fix the wire end. When the wire end passes through the place where the crimping terminal is connected to the crown spring, the crown spring is deformed by force to clamp and fix the internal wire end. The first waterproof ring and the second waterproof ring are used for waterproofing of the device to ensure that the waterproof grade reaches IP. The use of two waterproof rings makes the device more waterproof.

[0014] Furthermore, the wire end fixer includes a fixing bar, a fixing plate, a connecting rod, a lever, an elastic sheet, a detection plate, a rotating plate, and a movable plate. The fixing bar is tightly connected to the male end fixing seat, the fixing bar is tightly connected to the fixing plate, the fixing plate is tightly connected to the connecting rod, the connecting rod is rotatably connected to the lever, the lever force end is tightly connected to the elastic sheet, the elastic sheet is tightly connected to the detection plate, the rotating plate is a telescopic plate, a movable groove is provided on the movable plate, the lever force end is slidably connected to the movable groove, the rotating plate is hinged to the detection plate on the side away from the lever, and the movable plate is hinged to the rotating plate on the side with the movable groove.

[0015] The fixing strip and the fixing plate are used as fixing devices to fix other components. The connecting rod is used as a rotating component to allow the lever to rotate. When the wire end is installed on the detection plate, the rotating plate and the movable plate, the wire end squeezes and deforms the elastic sheet, pushing the lever to rotate with the connecting rod as the rotation center, so that the lever pushes the movable plate on the movable groove and moves along the direction of the fixed plate. At the same time, the rotating plate is driven to rotate and stretch with the hinge with the detection plate as the rotation center, thereby fixing the wire end.

[0016] Furthermore, an unlocking slot, an anti-locking slot, and a card slot are provided on the female end housing, the unlocking tool is inserted into the unlocking slot, and the anti-locking slots are located on both sides of the unlocking slot.

[0017] The unlocking groove is used to install the unlocking tool so that when the female device and the male device need to be disassembled, they can be disassembled quickly. The anti-locking groove is used to prevent the female plug from being stuck with the female shell to increase the number of times the female shell is used. The card slot is used to card with the female plug to fix the female plug.

[0018] Furthermore, the female end plug includes an insert body, a spring body, and a card. The insert body is provided with a first waterproof groove and a second waterproof groove. The first waterproof ring is placed on the first waterproof groove, and the second waterproof ring is placed on the second waterproof groove. The spring body is fastened to the insert body, the spring body is clamped to the spring limiter, and the card is clamped to the card slot.

[0019] The plug-in body is used as an installation base for installing components, the first waterproof groove and the second waterproof groove are used for installing the first waterproof ring and the second waterproof ring respectively, the spring body is used to be connected with the spring limiter to lock the plug-in body and the male end socket, and the card is used to be connected with the card slot to lock the plug-in body and the female end shell.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the process of connecting the male-end device and the female-end device, the female-end plug and the male-end socket are locked by engaging the spring body with the spring limiter, the plug body and the female-end housing are locked by engaging the card and the card slot, the wire-pressing terminal is connected to the female-end plug by engaging the retaining spring with the female-end plug, the device waterproof grade reaches IP by the first waterproof ring and the second waterproof ring, the wire end is fixed inside the wire-pressing terminal by the crown spring, and the installation position of the wire-pressing terminal is limited by the male-end limiter To prevent improper installation, for wire ends of different thicknesses, the thickness of the wire ends is detected by an elastic sheet. The thicker the wire end, the greater the deformation of the elastic sheet. The greater the deformation of the elastic sheet, the greater the angle of rotation of the lever, the farther the lever pushes the moving plate to move, the farther the moving plate moves, the greater the angle of rotation of the rotating plate, and at the same time, the bending angle of the wire end in the rotating plate is greater, so that the pulling force of the object connected to the thicker wire end on the wire end itself is converted into a greater degree of friction between the wire end and the rotating plate, thereby reducing the situation where the wire end is deformed due to excessive pulling force and thus has a shortened lifespan. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the male end device of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the male end limiting device of the present invention;

[0025] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 5 yes Figure 4 A-direction section view;

[0027] Figure 6 is a schematic structural diagram of a wire fixer of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the female end device of the present invention;

[0029] Figure 8 yes Figure 7 B-direction cross-sectional view of the view;

[0030] In the figure: 1-male end device, 11-male end fixing seat, 111-limiting hole, 12-male end socket, 13-spring limiter, 2-male end limiter, 21-limiting plate, 22-male end limiter, 23-limiting fixture, 3-female end device, 31-female end housing, 32-pressing terminal, 311-unlocking slot, 312-anti-locking slot, 313-card slot, 32-pressing terminal, 33-circlip, 34-crown spring, 3 5-first waterproof ring, 36-second waterproof ring, 37-female end plug, 371-plug body, 3711-first waterproof groove, 3712-second waterproof groove, 372-spring body, 373-card, 4-wire end fixer, 41-fixing bar, 42-fixing plate, 43-connecting rod, 44-lever, 45-elastic sheet, 46-detection plate, 47-rotating plate, 48-moving plate, 481-moving groove, 5-unlocking tool. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a technical solution:

[0033] like Figure 1-2 As shown, a multi-PIN integrated board-end to line-end photovoltaic connector, the photovoltaic connector includes a male end device 1, a male end limiting device 2, a female end device 3, a line end fixer 4, and an unlocking tool 5. The male end device 1 is fastened to the male end limiting device 2, the male end device 1 is connected to the female end device 3, the female end device 3 is connected to the male end limiting device 2, the line end fixer 4 is fastened to the male end device 1, and the unlocking tool 5 is inserted into the female end device 3.

[0034] The male end limit device 2 serves as a limit for the installation position to prevent the female end from being installed too deep or too shallow, thereby ensuring that the connector will not have poor contact. The male end device 1 and the female end device 3 are installed with each other and the structure is locked after installation to achieve the purpose of stable connection. The male end device 1 and the female end device 3 can only be separated by the corresponding unlocking tool 5. The wire end fixer 4 is used to balance the tension of wire ends of different lengths on the connected objects. The thicker the connected wire end, the larger the angle of the wire end fixer 4. The larger the angle, the increased friction between the wire end and the wire end fixer 4, which decomposes the tension on the wire end and reduces the size of the tension on the wire end, which can extend the service life of the wire end and increase the use time of the wire end.

[0035] like Figure 1-2As shown, the male end device 1 includes a male end fixing seat 11, a male end socket 12, and a spring stopper 13. The male end fixing seat 11 is fastened to the male end socket 12, the male end fixing seat 11 is connected to the male end limiting device 2, the male end socket 12 is connected to the female end device 3, the spring stopper 13 is clamped with the female end device 3, the male end socket 12 is fastened to the spring stopper 13, and the male end fixing seat 11 is provided with a limiting hole 111, and there are four limiting holes 111.

[0036] The male end fixing seat 11 is used as an installation base for installing other components. The male end socket 12 is used for installation with the female end device 3. The spring limiter 13 is used for clamping with the female end device 3. The female end device 3 and the male end socket 12 are locked after installation. The limiting hole 111 is used for installing the male end limiting device 2.

[0037] like Figure 1 to Figure 3 As shown, the male end limit device 2 includes a limit plate 21, a male end limiter 22, and a limit fixture 23. The limit plate 21 is fastened to the male end limiter 22, the limit plate 21 is fastened to the limit fixture 23, the male end limiter 22 passes through the limit hole 111 and is inserted into the female end device 3, and the limit fixture 23 is fastened to the male end fixing seat 11.

[0038] The limit plate 21 is used as an installation base for installing other components. The male end limiter 22 is used as a limit device, which passes through the limit hole 111 and contacts the female end device 3 to limit the installation position of the female end device 3 to prevent the female end device 3 from not being installed at the corresponding position. The limit fixer 23 is used as a fixer to fix the limit plate 21 to the male end fixing seat 11.

[0039] like Figure 1 , Figure 4 , Figure 5 As shown, the female end device 3 includes a female end shell 31, a crimping terminal 32, a retaining spring 33, a crown spring 34, a first waterproof ring 35, a second waterproof ring 36, and a female end plug 37. The female end shell 31 is clamped with the female end plug 37, the retaining spring 33 is sleeved on the crimping terminal 32, the retaining spring 33 is clamped with the female end plug 37, the crown spring 34 is arranged in the crimping terminal 32, the first waterproof ring 35 and the second waterproof ring 36 are placed on the female end plug 37, and the first waterproof ring 35 and the second waterproof ring 36 are in close contact with the female end plug 37 and the female end shell 31, the female end shell 31 is abutted against the male end fixing seat 11, and the male end limiter 22 is inserted into the female end plug 37.

[0040] The female end housing 31 is used as a protective part to protect other components from being directly exposed to the external environment. The wire crimping terminal 32 is used to install the wire end. The retaining spring 33 is used to fix the wire crimping terminal 32 to the female end plug 37. The crown spring 34 is used to clamp and fix the wire end. When the wire end passes through the place where the wire end is connected with the crown spring 34 in the wire crimping terminal 32, the crown spring 34 is deformed by force to clamp and fix the internal wire end. The first waterproof ring 35 and the second waterproof ring 36 are used for waterproofing of the device to ensure that the waterproof level reaches IP67. The use of two waterproof rings makes the device more waterproof.

[0041] like Figure 1 , Figure 6 As shown, the wire end fixer 4 includes a fixing bar 41, a fixing plate 42, a connecting rod 43, a lever 44, an elastic sheet 45, a detection plate 46, a rotating plate 47, and a movable plate 48. The fixing bar 41 is fastened to the male end fixing seat 11, the fixing bar 41 is fastened to the fixing plate 42, the fixing plate 42 is fastened to the connecting rod 43, the connecting rod 43 is rotatably connected to the lever 44, the force-generating end of the lever 44 is fastened to the elastic sheet 45, the elastic sheet 45 is fastened to the detection plate 46, the rotating plate 47 is a telescopic plate, a moving groove 481 is provided on the moving plate 48, the force-bearing end of the lever 44 is slidably connected to the moving groove 481, the rotating plate 47 is hinged to the detection plate 46 on the side away from the lever 44, and the moving plate 48 is hinged to the rotating plate 47 on the side with the moving groove 481.

[0042] The fixing bar 41 and the fixing plate 42 are used as fixing devices for fixing other components. The connecting rod 43 is used as a rotating component to allow the lever 44 to rotate. When the wire end is installed on the detection plate 46, the rotating plate 47, and the movable plate 48, the elastic sheet 45 is squeezed and deformed by the wire end, pushing the lever 44 to rotate with the connecting rod 43 as the rotation center, so that the lever 44 pushes the movable plate 48 on the moving groove 481 and moves along the direction of the fixed plate 42. At the same time, it drives the rotating plate 47 to rotate and stretch with the hinge with the detection plate 46 as the rotation center, thereby fixing the wire end.

[0043] like Figure 1 , Figure 4 , Figure 5 , Figure 8 As shown, the female end housing 31 is provided with an unlocking groove 311 , an anti-locking groove 312 , and a locking groove 313 . The unlocking tool 5 is inserted into the unlocking groove 311 , and the anti-locking groove 312 is located on both sides of the unlocking groove 311 .

[0044] The unlocking groove 311 is used to install the unlocking tool 5, so that when the female device 3 and the male device 1 need to be disassembled, they can be quickly disassembled. The anti-locking groove 312 is used to prevent the female plug 37 from being stuck with the female shell 31 to increase the number of times the female shell 31 is used. The card slot 313 is used to card with the female plug 37 to fix the female plug 37.

[0045] like Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, the female end plug 37 includes an insert body 371, a spring body 372, and a card 373. The insert body 371 is provided with a first waterproof groove 3711 and a second waterproof groove 3712. The first waterproof ring 35 is placed on the first waterproof groove 3711, and the second waterproof ring 36 is placed on the second waterproof groove 3712. The spring body 372 is fastened to the insert body 371, the spring body 372 is clamped with the spring limiter 13, and the card 373 is clamped with the card slot 313.

[0046] The plug 371 is used as an installation base for installing components. The first waterproof groove 3711 and the second waterproof groove 3712 are used for installing the first waterproof ring 35 and the second waterproof ring 36 respectively. The spring body 372 is used to be mutually engaged with the spring limiter 13 to lock the plug 371 with the male end socket 12. The card 373 is used to be engaged with the card slot 313 to lock the plug 371 with the female end housing 31.

[0047] Working principle of the present invention:

[0048] During the connection process between the male device 1 and the female device 3, the female plug 37 is locked with the male socket 12 by engaging the spring body 372 with the spring limiter 13, the plug body 371 is locked with the female housing 31 by engaging the card 373 with the card slot 313, the wire crimping terminal 32 is connected to the female plug 37 by engaging the spring 33 with the female plug 37, the waterproof grade of the device reaches IP67 by the first waterproof ring 35 and the second waterproof ring 36, the wire end is fixed inside the wire crimping terminal 32 by the crown spring 34, and the installation position of the wire crimping terminal 32 is limited by the male limiter 22 To prevent improper installation, for wire ends of different thicknesses, the thickness of the wire end is detected by the elastic sheet 45. The thicker the wire end, the greater the deformation of the elastic sheet 45. The greater the deformation of the elastic sheet 45, the greater the angle of rotation of the lever 44, and the farther the lever 44 pushes the movable plate 48 to move. The farther the movable plate 48 moves, the greater the angle of rotation of the rotating plate 47. At the same time, the bending angle of the wire end in the rotating plate 47 is greater, so that the pulling force of the object connected to the thicker wire end on the wire end itself is converted into a greater degree of friction between the wire end and the rotating plate 47, thereby reducing the situation where the wire end is deformed due to excessive pulling force and the service life is shortened.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-PIN integrated board-to-line photovoltaic connector, characterized in that: The photovoltaic connector comprises a male end device (1), a male end limiting device (2), a female end device (3), a wire end fixer (4), and an unlocking tool (5); the male end device (1) is tightly connected to the male end limiting device (2), the male end device (1) is connected to the female end device (3), the female end device (3) is connected to the male end limiting device (2), the wire end fixer (4) is tightly connected to the male end device (1), and the unlocking tool (5) is inserted into the female end device (3); The male end device (1) comprises a male end fixing seat (11), a male end socket (12), and a spring stopper (13); the male end fixing seat (11) is tightly connected to the male end socket (12); the male end fixing seat (11) is connected to the male end stopper (2); the male end socket (12) is connected to the female end device (3); the spring stopper (13) is snap-fitted to the female end device (3); the male end socket (12) is tightly connected to the spring stopper (13); the male end fixing seat (11) is provided with a stopper hole (111); and the number of the stopper holes (111) is four; The wire end fixer (4) comprises a fixing strip (41), a fixing plate (42), a connecting rod (43), a lever (44), an elastic sheet (45), a detection plate (46), a rotating plate (47), and a movable plate (48); the fixing strip (41) is tightly connected to the male end fixing seat (11); the fixing strip (41) is tightly connected to the fixing plate (42); the fixing plate (42) is tightly connected to the connecting rod (43); the connecting rod (43) is rotatably connected to the lever (44); The force-generating end of the lever (44) is tightly connected to the elastic sheet (45), the elastic sheet (45) is tightly connected to the detection plate (46), the rotating plate (47) is a telescopic plate, the movable plate (48) is provided with a movable groove (481), the force-bearing end of the lever (44) is slidably connected to the movable groove (481), the side of the rotating plate (47) away from the lever (44) is hinged to the detection plate (46), and the side of the movable plate (48) with the movable groove (481) is hinged to the rotating plate (47).

2. A multi-PIN integrated board-end to line-end photovoltaic connector according to claim 1, characterized in that: The male end limit device (2) comprises a limit plate (21), a male end limiter (22), and a limit fixture (23); the limit plate (21) is tightly connected to the male end limiter (22); the limit plate (21) is tightly connected to the limit fixture (23); the male end limiter (22) passes through the limit hole (111) and is inserted into the female end device (3); and the limit fixture (23) is tightly connected to the male end fixing seat (11).

3. A multi-PIN integrated board-end to line-end photovoltaic connector according to claim 1, characterized in that: The female end device (3) comprises a female end shell (31), a wire crimping terminal (32), a clamping spring (33), a crown spring (34), a first waterproof ring (35), a second waterproof ring (36), and a female end plug (37); the female end shell (31) is clamped with the female end plug (37); the clamping spring (33) is sleeved on the wire crimping terminal (32); the clamping spring (33) is clamped with the female end plug (37); the crown spring (34) is arranged in the wire crimping terminal (32); the first waterproof ring (35) and the second waterproof ring (36) are arranged on the female end plug (37); the first waterproof ring (35) and the second waterproof ring (36) are in contact with the female end plug (37) and the female end shell (31); the female end shell (31) is in contact with the male end fixing seat (11); and a male end stopper (22) is inserted into the female end plug (37).

4. A multi-PIN integrated board-end to line-end photovoltaic connector according to claim 3, characterized in that: An unlocking slot (311), an anti-locking slot (312), and a clamping slot (313) are provided on the female end housing (31); the unlocking tool (5) is inserted into the unlocking slot (311); and the anti-locking slot (312) is located on both sides of the unlocking slot (311).

5. The multi-PIN integrated board-end to line-end photovoltaic connector according to claim 3, characterized in that: The female end plug (37) comprises an insert body (371), a spring body (372), and a card (373); the insert body (371) is provided with a first waterproof groove (3711) and a second waterproof groove (3712); the first waterproof ring (35) is placed on the first waterproof groove (3711); the second waterproof ring (36) is placed on the second waterproof groove (3712); the spring body (372) is tightly connected to the insert body (371); the spring body (372) is snap-connected to the spring limiter (13); and the card (373) is snap-connected to the card slot (313).

Images