Integrated connection structure of photovoltaic connector

Abstract

The utility model discloses a photovoltaic connector integrated connection structure, which comprises a base, at least one group of connectors are arranged on the base, and the connectors and the base are integrally formed through injection molding; each group of connectors comprises at least one group of alternating current connectors or each group of connectors comprises at least one group of direct current connectors or each group of connectors comprises at least one group of alternating current connectors and at least one group of direct current connectors; according to the structure, the connector and the base are designed to be of an integrally-formed structure, so that the use of cables can be reduced, the cost is further controlled, meanwhile, the direct-current connector and the alternating-current connector are integrated together, and the cost is reduced. Therefore, the whole connector is convenient to transport and install.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic connectors, in particular to an integrated connection structure of a photovoltaic connector. Background Art

[0002] The photovoltaic inverter is one of the core devices in the solar photovoltaic power generation system. Its main function is to convert the direct current (DC) generated by the photovoltaic panels into alternating current (AC) so that it can be integrated into the public power grid or directly used by households and commercial facilities.

[0003] PV inverter connectors are key electrical components specifically designed to connect PV panels to the inverter, and between the inverter output and the grid. PV strings are connected via a DC combiner box or directly to the inverter's DC input. DC connectors and cables securely connect the DC power from the strings to the inverter's internal electrical unit. The electrical unit converts the DC power to AC, which is then transmitted to the AC connector. Through the AC connector and cables, it is connected to an AC distribution box or directly to the grid.

[0004] Currently, DC connectors and AC connectors are mostly connected to inverters via multiple cables, which has the disadvantages of high cost and inconvenient transportation. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an integrated photovoltaic connector connection structure that is convenient for transportation and installation.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a photovoltaic connector integrated connection structure, comprising a base, at least one group of connectors provided on the base, the connectors and the base being integrally formed by injection molding;

[0007] Each group of connectors includes at least one group of AC connectors, or each group of connectors includes at least one group of DC connectors, or each group of connectors includes at least one group of AC connectors and at least one group of DC connectors.

[0008] Furthermore, it also includes a PCB board, the AC connector includes a first conductor and a first shell, one end of the first conductor extends out of one end of the first shell and is electrically connected to the PCB board, and the first shell and the base are injection-molded as one piece.

[0009] Furthermore, the device further comprises a PCB board, wherein the DC connector comprises a male connector and a female connector;

[0010] The male plug connector includes a second conductor and a second housing, one end of the second conductor extends out of the second housing and is electrically connected to the PCB board, and the second housing and the base are integrally formed by injection molding;

[0011] The female plug connector includes a third conductor and a third shell. One end of the third conductor extends out of the third shell and the other end is electrically connected to the PCB board. The third shell and the base are integrally formed by injection molding.

[0012] Furthermore, the first conductor, the second conductor and the third conductor are connected to the PCB by welding.

[0013] Or the first conductor, the second conductor, the third conductor and the PCB are connected via cables, and the cables are welded to the PCB.

[0014] Furthermore, the second conductor includes a second conductor body portion and a second connecting portion, the second conductor body portion is installed inside the second housing, and the second connecting portion extends horizontally from the second conductor body portion toward the PCB board;

[0015] The third conductor includes a third conductor body and a third connecting portion. The third conductor body is installed inside the third housing. The third connecting portion extends horizontally from the third conductor body toward the PCB board.

[0016] Furthermore, the second connecting portion and the third connecting portion are both parabolic hook structures, and the PCB board is provided with via holes for inserting the parabolic hook structures.

[0017] Furthermore, the second conductor and the third conductor are each provided with an anti-overflow glue structure inside.

[0018] Furthermore, the anti-overflow glue structure is a punched bevel arranged at the second connection part or the third connection part, and the end of the punched bevel is bent toward the axial center line of the second connection part or the third connection part, or the anti-overflow glue structure is a silicone plug sleeved on the second connection part or the third connection part.

[0019] Furthermore, a first locking structure 1112a is provided at one end of the first shell away from the base, a third locking structure 1212a is provided at one end of the second shell away from the base, and a fifth locking structure 1222a is provided at one end of the third shell away from the base.

[0020] Furthermore, the base is provided with an anti-mock structure for distinguishing the docking direction of the PCB board, and the outer edge of the base is surrounded by a ridge-like structure.

[0021] The beneficial effects of the utility model are:

[0022] 1. In this structure, the connector and the base are designed as an integrated structure, which can reduce the use of cables and thus control costs.

[0023] 2. In this structure, the DC connector and the AC connector are integrated together, thereby facilitating the transportation and installation of the entire connector.

[0024] 3. In this structure, the second connecting portion and the third connecting portion are designed to be parabolic hook structures, thereby facilitating the fixing and welding of the second conductor and the third conductor to the PCB board.

[0025] 4. In this structure, the anti-overflow glue structure can block the glue that overflows to the conductor, preventing the glue from flowing to the second conductor body and the third conductor body at the front end and affecting the conductivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the integrated photovoltaic connector connection structure according to an embodiment of the present application.

[0027] Figure 2 Schematic diagram of the structure of the second conductor in the integrated photovoltaic connector connection structure according to an embodiment of the present application.

[0028] Figure 3 Schematic diagram of the structure of the third conductor in the integrated photovoltaic connector connection structure according to an embodiment of the present application.

[0029] Figure 4 This is another structural schematic diagram of the second conductor in the integrated photovoltaic connector connection structure according to an embodiment of the present application.

[0030] Figure 5 This is a structural diagram of the photovoltaic connector integrated connection structure of an embodiment of the present application when connected to an external connector.

[0031] Figure 6 This is a schematic diagram of the structure of the photovoltaic connector integrated connection structure and the external connector when separated according to an embodiment of the present application.

[0032] Figure 7 This is an exploded schematic diagram of the integrated photovoltaic connector connection structure and the external connector according to an embodiment of the present application.

[0033] The following are marked in the figure: connector 1, AC connector 11, first conductor 1111, first housing 1112, first locking structure 1112a, DC connector 12, male connector 121, second conductor 1211, second conductor body 1211a, second connecting portion 1211b, second housing 1212, third locking structure 1212a, female connector 122, third conductor 1221, third conductor body 1221a, third connecting portion 1221b, third housing 1222, fifth locking structure 1222a, punched bevel 123, silicone plug 124, base 2, external AC connector 31, fourth conductor 3111, fourth housing 3112, second locking structure 3112a, external female connector 321, fifth conductor 3211, fifth housing 3212, fourth locking structure 3212a, external male connector 322, sixth conductor 3221, sixth housing 3222, sixth locking structure 3222a, PCB board 4, via 41. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 As shown, the embodiment of the present application discloses a photovoltaic connector integrated connection structure, which is characterized by comprising a base 2, on which at least one set of connectors 1 is provided, and the connectors 1 and the base 2 are integrally formed by injection molding;

[0036] Each group of connectors 1 includes at least one group of AC connectors 11 , or each group of connectors 1 includes at least one group of DC connectors 12 , or each group of connectors 1 includes at least one group of AC connectors 11 and at least one group of DC connectors 12 .

[0037] In this structure, N groups of connectors 1 can be integrally connected to the base 2 according to actual conditions, and the number N can be 1, 2, 3, 4, etc. Each group of connectors 1 can be designed with M groups of AC connectors 11 and L groups of DC connectors 12 according to actual conditions, and the number of M and L can be 1, 2, 3, 4, etc.

[0038] That is, in this structure, only M groups of AC connectors 11 are provided on the base 2 , only L groups of DC connectors 12 are provided on the base 2 , or both M groups of AC connectors 11 and L groups of DC connectors 12 are provided on the base 2 .

[0039] Therefore, in this structure, the connector 1 and the base 2 are designed as an integrally formed structure, thereby reducing the use of cables and controlling costs. At the same time, in this structure, the DC connector 12 and the AC connector 11 are integrated together, thereby facilitating the transportation and installation of the entire connector 1.

[0040] In this embodiment, a PCB board 4 is further included. The AC connector 11 includes a first conductor 1111 and a first housing 1112. One end of the first conductor 1111 extends out of the first housing 1112 and is electrically connected to the PCB board 4. The first housing 1112 and the base 2 are integrally formed by injection molding.

[0041] The DC connector 12 includes a male connector 121 and a female connector 122 , and also includes a PCB board 4 ;

[0042] The male connector 121 includes a second conductor 1211 and a second housing 1212. One end of the second conductor 1211 extends out of the second housing 1212 and is electrically connected to the PCB 4. The second housing 1212 and the base 2 are integrally formed by injection molding.

[0043] The female connector 122 includes a third conductor 1221 and a third shell 1222 . One end of the third conductor 1221 extends out of the third shell 1222 and is electrically connected to the PCB board 4 . The third shell 1222 and the base 2 are integrally formed by injection molding.

[0044] Specifically, in this structure, the first shell 1112, the second shell 1212 and the third shell 1222 are directly injection-molded integrally with the base 2, thereby reducing the connection structure between the connector 1 and the base 2. At the same time, the first conductor 1111, the second conductor 1211 and the third conductor 1221 are directly electrically connected to the PCB board 4, thereby reducing the connection structure between the two on the one hand and making the connection between the connector and the PCB board 4 more stable on the other hand.

[0045] In this embodiment, the first conductor 1111, the second conductor 1211 and the third conductor 1221 can be electrically connected to the PCB board 4 through a variety of connection methods. A first implementation method is that the connection points of the first conductor 1111, the second conductor 1211 and the third conductor 1221 and the PCB board 4 are directly electrically connected by welding. A second implementation method is that a cable is set between the first conductor 1111, the second conductor 1211 and the third conductor 1221 and the PCB board 4, one end of the cable is welded to the PCB board 4, and the other end of the cable is welded to the first conductor 1111, the second conductor 1211 or the third conductor 1221. At the same time, other connection methods can also be used for connection.

[0046] The above two connection methods used in this structure are simple to operate and low in cost.

[0047] In this embodiment, the second conductor 1211 includes a second conductor body portion 1211a and a second connecting portion 1211b. The second conductor body portion 1211a is installed inside the second housing 1212, and the second connecting portion 1211b extends horizontally from the second conductor body portion 1211a toward the PCB board 4.

[0048] The third conductor 1221 includes a third conductor body 1221a and a third connecting portion 1221b. The third conductor body 1221a is installed inside the third housing 1222. The third connecting portion 1221b extends horizontally from the third conductor body 1221a toward the PCB board 4.

[0049] Specifically, in the above structure, the second connection portion 1211b and the third connection portion 1221b are extended to the PCB board 4 during design, so that the second connection portion 1211b and the third connection portion 1221b can be welded to the PCB board 4 .

[0050] Specifically, the structures of the second connecting portion 1211b and the third connecting portion 1221b can be in various forms, such as a planar extension structure, etc. Preferably, in this structure, the structures of the second connecting portion 1211b and the third connecting portion 1221b are parabolic hook structures, that is, the second connecting portion 1211b or the third connecting portion 1221b first extends horizontally and then bends upward, and then bends downward to form a parabolic hook. At the same time, the PCB board 4 is provided with a via 41 for inserting the parabolic hook structure and realizing electrical connection.

[0051] When connecting the second conductor 1211 and the third conductor 1221 to the PCB board 4 , the parabolic hook structure can be inserted into the via hole 41 on the PCB board 4 to achieve rough positioning, and then they are welded together.

[0052] The above-mentioned structural arrangement can ensure that the PCB board 4 and the conductor are not prone to relative movement during welding, thereby reducing other fixing means during welding and facilitating the welding operation.

[0053] In this embodiment, anti-glue overflow structures are respectively provided inside the second conductive body 1211 and the third conductive body 1221 .

[0054] Specifically, a shell connected to the base 2 is also provided on the outside of the PCB board 4. After the shell is installed, it is necessary to perform glue filling operation inside the shell. After the glue filling operation is completed, some glue will overflow to the conductive structure. The anti-overflow glue structure can block the overflowed glue to prevent the glue from flowing to the first conductor body part 1111a or the second conductor body part 1211a, affecting the conductivity.

[0055] Specifically, the anti-overflow glue structure can be in various forms. The following two forms are mainly used in this application. The first structural form is: the anti-overflow glue structure is a punching bevel 123 arranged at the second connection part 1211b or the third connection part 1221b, and the end of the punching bevel 123 is bent toward the axial center line direction of the second connection part 1211b or the third connection part 1221b.

[0056] When the glue overflows to the second connection portion 1211b or the third connection portion 1221b, the overflowed glue will accumulate on the punching bevel 123 under the action of the punching bevel 123 and will not continue to flow downward to affect the conductive performance of the conductor.

[0057] The second structural form of the anti-overflow glue structure is: the anti-overflow glue structure is a silicone plug 124 sleeved on the second connecting portion 1211b or the third connecting portion 1221b.

[0058] When the glue overflows to the second connection portion 1211b or the third connection portion 1221b, the silicone plug 124 can block the overflowed glue, thereby preventing the overflowed glue from continuing to flow downward and affecting the conductive performance of the conductor.

[0059] In this embodiment, the base 2 is provided with an anti-mock structure for distinguishing the docking direction of the PCB board 4, and the outer edge of the base 2 is surrounded by a ridge-like structure.

[0060] Specifically, the foolproof structure can be a raised horizontal bar, a raised column or the like. The setting of the foolproof structure serves as a reminder of the front and back sides of the base 2, so that when the connector 1 is soldered to the PCB board 4, the PCB board 4 will not be placed upside down.

[0061] At the same time, a ridge-like structure is provided on the outer side of the base 2, which can enhance the contact force when the base 2 is connected to the shell, and prevent the injected glue from overflowing from here.

[0062] In this embodiment, a first locking structure 1112a is provided at one end of the first shell away from the base 2, a third locking structure 1212a is provided at one end of the second shell away from the base 2, and a fifth locking structure 1222a is provided at one end of the third shell away from the base 2.

[0063] Specifically, during use, the AC connector 11 in this structure needs to be plugged into the external AC connector 31. The external AC connector 31 includes a fourth shell 3112, and a fourth conductor 3111 is provided in the fourth shell 3112. The fourth shell 3112 is provided with a second locking structure 3112a that can be plugged into the first locking structure 1112a. The first locking structure 1112a and the second locking structure 3112a cooperate with each other to complete the locking of the AC connector 11 in this structure and the external AC connector 31. At this time, the first conductor 1111 is in contact with the fourth conductor 3111, thereby transmitting AC current.

[0064] Similarly, the male plug connector 121 in this structure needs to be plugged into the external female plug connector 321 to complete the connection. The external female plug connector 321 includes a fifth shell 3212, and a fifth conductor 3211 is provided in the fifth shell 3212. The fifth shell 3212 is provided with a fourth locking structure 3212a that can be plugged into the third locking structure 1212a. The third locking structure 1212a and the fourth locking structure 3212a cooperate with each other to complete the locking of the male plug connector 121 and the external female plug connector 321 in this structure. At this time, the second conductor 1211 is in contact with the fifth conductor 3211, thereby transmitting DC current.

[0065] Similarly, the female connector 122 in this structure needs to be plugged into the external male connector 322 to complete the connection. The external male connector 322 includes a sixth shell 3222, and a sixth conductor 3221 is provided in the sixth shell 3222. The sixth shell 3222 is provided with a sixth locking structure 3222a that can be plugged into the fifth locking structure 1222a. The fifth locking structure 1222a and the sixth locking structure 3222a cooperate with each other to complete the locking of the female connector 122 and the external male connector 322 in this structure. At this time, the third conductor 1221 is in contact with the sixth conductor 3221, thereby transmitting DC current.

[0066] Therefore, when using the integrated photovoltaic connector connection structure, it is only necessary to plug and connect the corresponding AC connector 11 and DC connector 12 with the corresponding external connector 1, thereby making the structure more convenient to use.

[0067] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic connector integrated connection structure, characterized by: It comprises a base (2), wherein at least one set of connectors (1) is provided on the base (2), and the connectors (1) and the base (2) are integrally formed by injection molding; Each group of connectors (1) includes at least one group of AC connectors (11), or each group of connectors (1) includes at least one group of DC connectors (12), or each group of connectors (1) includes at least one group of AC connectors (11) and at least one group of DC connectors (12).

2. The photovoltaic connector integrated connection structure according to claim 1, wherein: Also includes a PCB board (4); The AC connector (11) comprises a first conductor (1111) and a first housing (1112); one end of the first conductor (1111) extends out of the first housing (1112) and one end is electrically connected to the PCB board (4); the first housing (1112) and the base (2) are integrally formed by injection molding.

3. The photovoltaic connector integrated connection structure according to claim 2, wherein: The DC connector (12) comprises a male plug connector (121) and a female plug connector (122); the male plug connector (121) comprises a second conductor (1211) and a second housing (1212); one end of the second conductor (1211) extends out of the second housing (1212) and one end is electrically connected to the PCB board (4); the second housing (1212) and the base (2) are integrally formed by injection molding; The female plug connector (122) comprises a third conductor (1221) and a third housing (1222); one end of the third conductor (1221) extends out of the third housing (1222) and one end is electrically connected to the PCB board (4); the third housing (1222) and the base (2) are integrally formed by injection molding.

4. The photovoltaic connector integrated connection structure according to claim 3, wherein: The first conductor (1111), the second conductor (1211), and the third conductor (1221) are connected to the PCB board (4) by welding. Alternatively, the first conductor (1111), the second conductor (1211), and the third conductor (1221) are connected to the PCB board (4) via cables, and the cables are connected to the PCB board (4) by welding.

5. The photovoltaic connector integrated connection structure according to claim 3, wherein: The second conductor (1211) comprises a second conductor body portion (1211a) and a second connecting portion (1211b); the second conductor body portion (1211a) is installed inside the second housing (1212); and the second connecting portion (1211b) extends horizontally from the second conductor body portion (1211a) toward the PCB board (4); The third conductor (1221) comprises a third conductor body portion (1221a) and a third connecting portion (1221b); the third conductor body portion (1221a) is installed inside the third housing (1222); and the third connecting portion (1221b) extends horizontally from the third conductor body portion (1221a) toward the PCB board (4).

6. The photovoltaic connector integrated connection structure according to claim 5, characterized in that: The second connecting portion (1211b) and the third connecting portion (1221b) are both parabolic hook structures, and the PCB board (4) is provided with a through hole (41) for inserting the parabolic hook structure.

7. The photovoltaic connector integrated connection structure according to claim 3, wherein: The second conductor (1211) and the third conductor (1221) are each provided with an anti-overflow glue structure inside.

8. The photovoltaic connector integrated connection structure according to claim 7, wherein: The anti-overflow glue structure is a punching bevel (123) provided at the second connecting portion (1211b) or the third connecting portion (1221b), wherein the end of the punching bevel (123) is bent toward the axis of the second connecting portion (1211b) or the third connecting portion (1221b). Or the anti-glue overflow structure is a silicone plug (124) sleeved on the second connecting portion (1211b) or the third connecting portion (1221b).

9. The photovoltaic connector integrated connection structure according to claim 3, wherein: The first housing is provided with a first locking structure at one end away from the base (2), the second housing is provided with a third locking structure at one end away from the base (2), and the third housing is provided with a fifth locking structure at one end away from the base (2).

10. The photovoltaic connector integrated connection structure according to any one of claims 2 or 3, characterized in that: The base (2) is provided with a fool-proof structure for distinguishing the docking direction of the PCB board (4), and the outer edge of the base (2) is surrounded by a ridge-shaped structure.

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