A multi-channel lateral combined connector for photovoltaic use

Abstract

The present invention discloses a multi-channel transverse combined connector for photovoltaic use, comprising a main connector installed on one side, a rear connector installed on the other side and a plurality of intermediate connectors installed in the middle; the upper end of the main connector is provided with an input connection terminal for connecting input, and the lower end is provided with a first output connection terminal for output; the side end is provided with a first transverse output terminal for output; one side of the intermediate connector is provided with a first transverse input terminal for connecting the first transverse output terminal, the other side is provided with a second transverse output terminal for output, and the lower end is provided with a second output connection terminal for output; the side end of the rear connector is provided with a second transverse input terminal for connecting the second transverse output terminal, and the lower end is provided with a third output connection terminal for output; the connector of the present invention can be expanded transversely according to demand, thereby improving the integration of the connector and reducing the cost, which is conducive to large-scale application.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic connectors, and in particular to a multi-channel transverse combined connector for photovoltaic use. Background Art

[0002] Because photovoltaic systems are exposed to wind, rain, scorching sun and extreme temperature changes for a long time, connectors must be able to adapt to these harsh environments. They must not only be waterproof, high temperature resistant and UV resistant, but also be touch-protected, have high current carrying capacity and high efficiency. At the same time, low contact resistance is also an important consideration. After the MC4 type of photovoltaic connector was launched on the market, it quickly gained market recognition and gradually became the standard for photovoltaic connectors. MC4 standard connectors are required for connecting photovoltaic modules to each other or connecting photovoltaic modules to equipment such as inverters.

[0003] Existing three-way MC4 connectors, for example, Chinese patent CN209858782U, provides a three-way MC4 connector for photovoltaics, which decomposes one input into two outputs, and makes the connection tight and reliable through threads and snaps, etc., which can meet the situation of one-to-two connection or even one-to-many connection, but it also has the following defects: the connector can only meet the situation of multi-way output in a fixed situation. When multi-way splicing is temporarily required, the connector can only be used to splice one by one. Each additional connector adds a connection port, which results in the need for a large number of connectors, resulting in low integration of the connection, and the need to organize the wire harness; at the same time, the splicing cost is also high, which is not conducive to large-scale installation. Summary of the invention

[0004] The purpose of the present invention is to solve the defects in the prior art that connectors cannot be temporarily combined as needed, the connection has low integration and high cost, and to provide a multi-channel horizontal combination connector for photovoltaic use.

[0005] To achieve the above-mentioned purpose, the present invention provides a multi-channel horizontal combined connector for photovoltaic use, including a main connector installed on one side, a rear connector installed on the other side, and a plurality of intermediate connectors installed in the middle; the upper end of the main connector is provided with an input connection terminal for connecting input, and the lower end is provided with a first output connection terminal for output; the side end is provided with a first horizontal output terminal for output; one side of the intermediate connector is provided with a first horizontal input terminal for connecting to the first horizontal output terminal, the other side is provided with a second horizontal output terminal for output, and the lower end is provided with a second output connection terminal for output; the side end of the rear connector is provided with a second horizontal input terminal for connecting to the second horizontal output terminal, and the lower end is provided with a third output connection terminal for output.

[0006] Preferably, the first output connection terminal, the second output connection terminal, the third output connection terminal and the second lateral input terminal are all provided with male terminals, and the male terminals include a second contact piece, a second base body and a second connection piece which are connected in sequence; the second contact piece is provided with a second circular plug at an end away from the second base body, and the second circular plug is provided with a plurality of second spring sheets which are in close contact with the inserted component; the second spring sheet has a certain elasticity and expands outwards under the action of elastic force, so that the outer surface of the second spring sheet contacts the inner surface of the first contact piece, and at the same time, under the action of the elastic force, the outer surface of the second spring sheet contacts the inner surface of the first contact piece elastically and closely.

[0007] Preferably, at least one convex body is provided at the end of the second elastic piece; the convex body protrudes from the outer surface of the second elastic piece, so that the convex body can contact the inner surface of the first contact piece more closely and make the contact better.

[0008] Preferably, the second contact piece, the second base body and the second connecting piece are integrally formed, which reduces the number of parts of the male terminal and facilitates installation by workers.

[0009] Preferably, a second locking ring is installed on the second base body, a second circular groove is provided on the second base body, the second locking ring is sleeved inside the second circular groove, and second locking parts for locking inside the shell are evenly provided on the outer surface of the second locking ring.

[0010] Preferably, one end of the second locking piece is connected to the outer surface of the second locking ring, and the other end has a gradually increasing cross-sectional area from the second locking ring to the second connecting piece; the second locking piece can stop the male terminal inside the external shell, which is convenient for staff to install and fix the male terminal to the shell.

[0011] Preferably, a female terminal is installed inside the input connection end; the female terminal is used in pair with a male terminal, and the male terminal is inserted into the female terminal; the female terminal includes a first contact piece, a first base and a first connecting piece connected in sequence; the first contact piece, the first base and the first connecting piece are connected in sequence and formed as one piece, which reduces the parts of the female terminal and is convenient for installation by the staff.

[0012] Preferably, the first contact piece is provided with a plurality of first spring sheets; one end of the first spring sheet is connected to the end of the first contact piece, and the other end is connected to the first substrate; when the second contact piece is inserted into the first contact piece, the inner side of the first spring sheet is in close contact with the outer surface of the second spring sheet, and the elastic deformation force is used to pressurize and perform close contact.

[0013] Preferably, the first spring sheet has an inwardly recessed inner wall to form an elastic contact area, and the elastic contact area is a planar concave structure; further, when the second contact piece is inserted into the first contact piece, the convex body abuts against the inner wall on the right side of the elastic contact area, and the elastic force is also used to make the convex body close to the inner wall of the elastic contact area.

[0014] Preferably, a first circular groove is further provided on the first contact piece and the first base, a first locking ring is sleeved on the first circular groove, and a first locking piece for locking in the shell is evenly provided on the outer surface of the first locking ring; the first locking piece can make the female terminal be locked in the inside of the external shell, so as to facilitate installation by the staff.

[0015] Preferably, one end of the first locking member is connected to the outer surface of the first locking ring, and the other end has a cross-sectional area gradually increasing from the first locking ring to the first connecting member.

[0016] Preferably, the main connecting member includes a first shell installed on the outside, a female terminal is installed at the upper end of the inside of the first shell, a male terminal is installed at the lower part, and a first T-shaped connecting member is installed in the middle part, the female terminal, the male terminal and the first T-shaped connecting member are connected by a first copper rod, and the first T-shaped connecting member is provided with an upper connecting end, a lower connecting end and a transverse connecting end; the upper part of the first copper rod is fixedly connected to the first connecting member, the lower part is fixedly connected to the second connecting member, and the middle part passes through the upper connecting end and the lower connecting end; the female terminal, the male terminal and the first T-shaped connecting member are all tightly surrounded around the first copper rod to achieve electrical connection.

[0017] Preferably, the first connecting member and the second connecting member are both provided with a plurality of convex ribs for fixing the first copper rod; the upper connecting end and the lower connecting end are both arc-shaped, tightly wrapping the first copper rod; the upper connecting end and the lower connecting end are both provided with a plurality of arc pieces for wrapping the first copper rod on the sides; the plurality of convex ribs are arranged side by side, thereby increasing friction and making the connection more reliable and tight; the addition of the arc piece is conducive to fixing the first copper rod and can also prevent the first T-shaped connecting member from being easily offset.

[0018] Preferably, a third circular groove is provided on the transverse connecting end, and a plurality of first spring sheets are provided inside the third circular groove; the first spring sheets are recessed inwardly on the inner wall to form an elastic contact area, and the elastic contact area is a planar concave structure; a third locking ring is sleeved on the third circular groove; the elastic contact area in the transverse connecting end squeezes the first circular plug, so that the first spring sheets are in close contact with the first circular plug.

[0019] Preferably, the intermediate connector includes a second shell installed on the outside, a second T-shaped connector is installed at the upper end inside the second shell, and a male terminal is installed at the lower part, the second T-shaped connector and the male terminal are connected by a second copper rod, one end of the second T-shaped connector is provided with a first circular plug for inserting into the inside of the transverse connecting end, the other end is provided with a transverse connecting end, and the lower end is provided with a lower connecting end, the upper part of the second copper rod is fixedly connected to the lower connecting end, and the lower part is fixedly connected to the second connector; the intermediate connector acts as an intermediate connector, and when multiple intermediate connectors are connected, the first circular plug of one intermediate connector is inserted into the inside of the transverse connecting end of another intermediate connector, thereby realizing transverse splicing and adding multiple second output connecting terminals.

[0020] Preferably, the rear connecting member includes a third shell installed on the outside, and the side end inside the third shell is equipped with a male terminal for inserting into the inside of the lateral connecting end, and the lower part is also equipped with a male terminal. The two male terminals are connected by a third copper rod, and both ends of the third copper rod are fixedly connected to the second connecting member.

[0021] Preferably, both the first lateral output end and the second lateral output end are provided with a waterproof groove, and an annular waterproof ring is sleeved on the waterproof groove; the annular waterproof ring is installed inside the waterproof groove, so that the connection has good waterproof performance.

[0022] Preferably, the annular waterproof ring has a double-peak structure; this ensures that the combined connector has good waterproof performance.

[0023] Preferably, hooks are provided on both sides of the first lateral output end and the second lateral output end, the cross-sectional shape of the hooks is conical, and two symmetrical slots are provided on both sides of the first lateral input end and the second lateral input end, and the size of the slots matches the size of the hooks.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention can expand the connector laterally as required by increasing the number of intermediate connectors by laterally installing a plurality of intermediate connectors between the main connector and the rear connector, wherein the intermediate connectors are respectively provided with a first horizontal input end, a second horizontal output end and a second output connection end, the first horizontal input end is connected to the first horizontal output end of the main connector, the second horizontal output end is connected to the second horizontal input end of the rear connector, and the second output connection end serves as an added output port, thereby realizing horizontal expansion. The internal connection method is adopted to improve the integration of the connector. Only by adding intermediate connectors between the main connector and the rear connector, horizontal expansion can be realized, which greatly reduces the connection cost and is conducive to large-scale applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of a five-channel horizontal combined connector provided by the present invention;

[0028] Figure 2 is an exploded schematic diagram of a five-channel transverse combined connector provided by the present invention;

[0029] Figure 3 is an exploded schematic diagram of a three-channel horizontal combined connector provided by the present invention;

[0030] Figure 4 It is a schematic diagram of the internal structure of the three-channel horizontal combined connector provided by the present invention;

[0031] Figure 5 It is an exploded schematic diagram of the main connecting member provided by the present invention;

[0032] Figure 6 is an exploded schematic diagram of the intermediate connecting piece provided by the present invention;

[0033] Figure 7 is an exploded schematic diagram of the rear connecting member provided by the present invention;

[0034] Figure 8 is an exploded schematic diagram of the male terminal provided by the present invention;

[0035] Fig. 9 It is an exploded schematic diagram of the female terminal provided by the present invention.

[0036] Included in the figure are:

[0037] 1. Main connector; 2. Intermediate connector; 3. Rear connector; 11. Input connector; 12. First output connector; 13. First lateral output connector; 21. First lateral input connector; 22. Second lateral output connector; 23. Second output connector; 31. Second lateral input connector; 32. Third output connector; 42. Male terminal; 421. Second contact member; 422. Second base; 423. Second connector; 4211. Second circular plug; 4212. Second spring; 4213. Protrusion; 4221. Second positioning ring; 4222. Second circular groove; 4223. Second positioning member; 52. Female terminal; 521. First contact member; 522. First base; 523. First A connecting piece; 5212, a first spring piece; 5213, an elastic contact area; 5211, a first circular groove; 5221, a first positioning ring; 5222, a first positioning piece; 14, a first shell; 15, a first T-shaped connecting piece; 16, a first copper rod; 151, an upper connecting end; 152, a lower connecting end; 153, a transverse connecting end; 17, a convex rib; 18, an arc piece; 1531, a third circular groove; 1532, a third positioning ring; 24, a second shell; 25, a second T-shaped connecting piece; 251, a first circular plug; 26, a second copper rod; 34, a third shell; 36, a third copper rod; 115, a waterproof groove; 116, an annular waterproof ring; 19, a hook; 20, a slot. DETAILED DESCRIPTION

[0038] The technical scheme in this embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in this embodiment of the present invention. Obviously, the described embodiment is one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please refer to Figures 1 to 9 The present invention provides a multi-channel lateral combined connector for photovoltaic use.

[0040] like Figure 1 As shown, it shows a five-channel horizontal combined connector provided by the present invention; wherein, the combined connector includes a main connector 1 installed on the right, a rear connector 3 installed on the left, and three intermediate connectors 2 installed in the middle.

[0041] like Figure 3 As shown, it shows a three-channel horizontal combined connector provided by the present invention; wherein, the combined connector includes a main connecting member 1 installed on the right, a rear connecting member 3 installed on the left, and an intermediate connecting member 2 installed in the middle.

[0042] It can be seen that in this embodiment, the number of channels is changed by changing the number of the intermediate connectors 2 installed laterally. When two channels need to be formed, the intermediate connector 2 is not used directly, and the number of the intermediate connectors 2 is zero; when three channels need to be formed, one intermediate connector 2 is used; when four channels need to be formed, two intermediate connectors 2 are used, and so on; in this embodiment, the connector is expanded laterally as needed by reducing or increasing the number of the intermediate connectors 2, thereby facilitating expansion.

[0043] The basic principle of this embodiment has been clearly introduced above. Figure 2 , each component and its interface are described in detail: an input connection terminal 11 is installed at the upper end of the main connection member 1, and the input connection terminal 11 is used to connect the input port to realize the input of power or signal; a first output connection terminal 12 is installed at the lower end of the main connection member 1, and the first output connection terminal 12 serves as the first output port to output power or signal; a first lateral output terminal 13 is installed on the left side of the main connection member 1, and the first lateral output terminal 13 serves as a side output port, which is used to output power or signal from the side and input power or signal into the intermediate connection member 2.

[0044] Furthermore, a first transverse input terminal 21 is provided on the right side of the intermediate connector 2, and the first transverse input terminal 21 is connected to the first transverse output terminal 13. Specifically, the first transverse output terminal 13 is inserted into the first transverse input terminal 21, so as to input power or signals into the intermediate connector 2; a second output connection terminal 23 is provided at the lower end of the intermediate connector 2, and the second output connection terminal 23 serves as the second or Nth output port to output power or signals; a second transverse output terminal 22 is provided on the left side of the intermediate connector 2, and the second transverse output terminal 22 serves as a side output port for outputting power or signals from the side, and inputting power or signals into another intermediate connector 2 or the rear connector 3.

[0045] Furthermore, a second lateral input terminal 31 is installed on the right side of the rear connecting member 3, and the second lateral input terminal 31 is connected to the second lateral output terminal 22. Specifically, the second lateral output terminal 22 is inserted into the second lateral input terminal 31, so as to input power or signals into the rear connecting member 3; a third output connecting terminal 32 is installed at the lower end of the rear connecting member 3, and the third output connecting terminal 32 serves as the last output port on the left side to output power or signals.

[0046] like Figure 4As shown, the first output connection end 12, the second output connection end 23, the third output connection end 32 and the second lateral input end 31 are all provided with a male terminal 42, and the male terminal 42 is used as an input or output interface connector; further, as Figure 8 As shown, the male terminal 42 includes a second contact member 421, a second base 422 and a second connecting member 423 connected in sequence; Figure 4 As shown, the second contact piece 421 , the second base 422 and the second connecting piece 423 are sequentially connected from left to right, and the second base 422 is installed between the second contact piece 421 and the second connecting piece 423 .

[0047] When in use, the second contact piece 421 needs to be inserted into the first contact piece 521 of the female terminal 52, so in this embodiment, the second contact piece 421 is provided with a second circular plug 4211 at the end away from the second base body 422, and the second circular plug 4211 is provided with a plurality of second elastic pieces 4212 that are in close contact with the inserted component; the second elastic piece 4212 has a certain elasticity, and expands outward under the action of elastic force, so that the outer surface of the second elastic piece 4212 is in contact with the inner surface of the first contact piece 521, and at the same time, under the action of the elastic force, the outer surface of the second elastic piece 4212 is in elastic and close contact with the inner surface of the first contact piece 521.

[0048] In order to further strengthen the above-mentioned tight connection, in the present embodiment, at least one convex body 4213 is further provided at the end of the second elastic piece 4212, and the convex body 4213 is a convex bump. In other embodiments, the convex body 4213 can also be set as a convex block, so it is not limited to this; the convex body 4213 protrudes from the outer surface of the second elastic piece 4212, which can make the convex body 4213 and the inner surface of the first contact piece 521 contact more closely, so that the contact is better; further, the outer surface of the convex body 4213 is also provided with an arc chamfer, which can facilitate the insertion and removal of the second circular plug 4211.

[0049] In this embodiment, the second contact piece 421, the second base body 422 and the second connecting piece 423 are all made of metal materials, preferably copper with good conductivity. The second contact piece 421, the second base body 422 and the second connecting piece 423 are integrally formed, which reduces the parts of the male terminal 42 and facilitates installation by the staff.

[0050] In other embodiments, the second contact member 421 , the second base 422 and the second connecting member 423 may be manufactured separately and then fixedly connected together by welding, bolts or other fixing connection methods.

[0051] The above structure has solved the problem of connecting the second contact member 421 and the first contact member 521 and the problem of tight connection. Next, it is necessary to solve the problem of fixing the male terminal 42 inside the shell to achieve the fixation of the male terminal 42 and the shell; Figure 8 As shown, a second locking ring 4221 is installed on the second base 422. Specifically, a second circular groove 4222 is provided on the second base 422. The second locking ring 4221 is sleeved inside the second circular groove 4222 and is limited by the protrusions at both ends, so that the second locking ring 4221 is fixedly sleeved on the second base 422; further, second locking members 4223 for locking inside the shell are evenly provided on the outer surface of the second locking ring 4221; the second locking member 4223 can make the male terminal 42 be locked inside the external shell (for example: the first shell 14, the second shell 24 or the third shell 34), so as to facilitate the installation by the staff and to facilitate the fixing of the male terminal 42 to the shell.

[0052] Furthermore, in the present embodiment, one end of the second locking member 4223 is connected to the outer surface of the second locking ring 4221, and the other end gradually increases the cross-sectional area from the second locking ring 4221 to the second connecting member 423; in other embodiments, one end of the second locking member 4223 is connected to the outer surface of the second locking ring 4221, and the end away from the second locking ring 4221 is slightly opened outward, but not limited to this; the direction of increase in the cross-sectional area and the direction of slightly opening outward can be opposite to the above description, as long as the fixing function is achieved.

[0053] like Figure 5 As shown, a female terminal 52 is installed inside the input connection end 11; the female terminal 52 is used in pair with the male terminal 42, and the male terminal 42 is inserted into the female terminal 52 to form a connection to transmit power or signals; specifically, the female terminal 52 inside the input connection end 11 is connected to the male terminal 42 of the previous output port.

[0054] The following is combined with Fig. 9 The structure of the female terminal 52 is described in detail. Fig. 9 As shown, the female terminal 52 includes a first contact piece 521, a first base 522 and a first connecting piece 523 which are connected in sequence from left to right; the first contact piece 521, the first base 522 and the first connecting piece 523 are also made of metal materials, preferably copper with good conductivity. The first contact piece 521, the first base 522 and the first connecting piece 523 are connected in sequence and formed as one piece, which reduces the parts of the female terminal 52 and facilitates installation by the staff.

[0055] Similarly, in other embodiments, the second contact member 421, the second base body 422 and the second connecting member 423 may be manufactured separately and then fixedly connected together by welding or bolts.

[0056] like Fig. 9 As shown, the first contact member 521 is provided with a plurality of first spring pieces 5212; one end of the first spring piece 5212 is connected to the end of the first contact member 521, and the other end is connected to the first substrate 522; further, the inner wall of the first spring piece 5212 is recessed inwardly to form an elastic contact area 5213, and the elastic contact area 5213 is a planar concave structure.

[0057] When the second contact piece 421 is inserted into the first contact piece 521, the inner side of the first spring piece 5212 is in close contact with the outer surface of the second spring piece 4212, and the close contact is achieved by pressurizing the elastic deformation force; further, the protrusion 4213 abuts against the inner wall on the right side of the elastic contact area 5213, and the elastic force is also used to make the protrusion 4213 close to the inner wall of the elastic contact area 5213.

[0058] like Fig. 9 As shown, a first circular groove 5211 is further provided on the first contact piece 521 and the first base body 522, a first locking ring 5221 is sleeved on the first circular groove 5211, and a first locking piece 5222 for locking in the shell is evenly provided on the outer surface of the first locking ring 5221, and the first locking piece 5222 and the second locking piece 4223 have the same function. Specifically, the first locking piece 5222 can make the female terminal 52 be locked in the interior of the external shell (for example: the first shell 14, the second shell 24 or the third shell 34), so as to facilitate installation by the staff.

[0059] Furthermore, in the present embodiment, one end of the first locking member 5222 is connected to the outer surface of the first locking ring 5221, and the other end gradually increases in cross-sectional area from the first locking ring 5221 to the first connecting member 523; in other embodiments, one end of the first locking member 5222 is connected to the outer surface of the first locking ring 5221, and the end away from the first locking member 5222 is slightly opened outward, but not limited to this; the direction of increase in cross-sectional area and the direction of slightly opening outward can be opposite to the above description, as long as the fixing function is achieved.

[0060] like Figure 5As shown, the main connector 1 includes a first shell 14 installed on the outside, a female terminal 52 is installed at the upper end of the first shell 14, a male terminal 42 is installed at the lower part, and a first T-shaped connector 15 is installed in the middle part. The female terminal 52, the male terminal 42 and the first T-shaped connector 15 are connected by a first copper rod 16. The first copper rod 16 can realize the connection between the female terminal 52, the male terminal 42 and the first T-shaped connector 15, thereby realizing the connection of power and signals.

[0061] Furthermore, the first T-shaped connector 15 is provided with an upper connecting end 151, a lower connecting end 152 and a transverse connecting end 153; the upper part of the first copper rod 16 is fixedly connected to the first connecting member 523, the lower part is fixedly connected to the second connecting member 423, and the middle part passes through the upper connecting end 151 and the lower connecting end 152; the female terminal 52, the male terminal 42 and the first T-shaped connector 15 are all tightly surrounded by the first copper rod 16 to achieve electrical connection.

[0062] In order to further strengthen the connection between the male terminal 42 and the female terminal 52 and the first copper rod 16, as shown in FIG. Figure 8 and Fig. 9 As shown, the first connecting member 523 and the second connecting member 423 are both provided with a plurality of convex ribs 17 for fixing the first copper rod 16; the plurality of convex ribs 17 are arranged side by side to increase the friction force, making the connection more reliable and tight; the upper connecting end 151 and the lower connecting end 152 are both arc-shaped, tightly wrapping the first copper rod 16; the sides of the upper connecting end 151 and the lower connecting end 152 are both provided with a plurality of arc pieces 18 for wrapping the first copper rod 16; the addition of the arc pieces 18 is conducive to fixing the first copper rod 16, and can also prevent the first T-shaped connecting member 15 from being easily offset.

[0063] The transverse connecting end 153 can adopt the structure of the female terminal 52 or a structure similar to the female terminal 52. In the present embodiment, the transverse connecting end 153 adopts a structure similar to the female terminal 52, specifically: a third circular groove 1531 is provided on the transverse connecting end 153, and a plurality of first elastic pieces 5212 are provided inside the third circular groove 1531; the inner wall of the first elastic pieces 5212 is recessed inward to form an elastic contact area 5213, and the elastic contact area 5213 is a planar concave structure; a third locking ring 1532 is sleeved on the third circular groove 1531.

[0064] Specifically, Figure 4 As shown, the transverse connecting end 153 is connected to the first circular plug 251 , or the transverse connecting end 153 is connected to the male terminal 42 ; the elastic contact area 5213 in the transverse connecting end 153 squeezes the first circular plug 251 , so that the first elastic sheet 5212 is in close contact with the first circular plug 251 .

[0065] like Figure 6 As shown; the intermediate connector 2 includes a second shell 24 installed on the outside, a second T-shaped connector 25 is installed at the upper end inside the second shell 24, and a male terminal 42 is installed at the lower part, the second T-shaped connector 25 and the male terminal 42 are connected by a second copper rod 26, one end of the second T-shaped connector 25 is provided with a first circular plug 251 for inserting into the inside of the transverse connecting end 153, the other end is provided with a transverse connecting end 153, and the lower end is provided with a lower connecting end 152, the upper part of the second copper rod 26 is fixedly connected to the lower connecting end 152, and the lower part is fixedly connected to the second connector 423.

[0066] The intermediate connector 2 serves as a connecting bridge, the first circular plug 251 is inserted into the lateral connecting end 153 as an input, the lateral connecting end 153 serves as a side output, and the lower connecting end 152 serves as a lower output. When multiple intermediate connectors 2 are connected, the first circular plug 251 of one intermediate connector 2 is inserted into the lateral connecting end 153 of another intermediate connector 2, thereby realizing lateral splicing and adding multiple second output connecting ends 23.

[0067] like Figure 7 As shown; the rear connector 3 includes a third shell 34 installed on the outside, and the side end inside the third shell 34 is equipped with a male terminal 42 for inserting into the inside of the lateral connection end 153, and the lower part is also equipped with a male terminal 42, one of the male terminals 42 is inserted into the inside of the lateral connection end 153 of the intermediate connector 2 to realize the input of power and signals, and the other male terminal 42 is used as output; further, the two male terminals 42 are connected by a third copper rod 36, and the third copper rod 36 can be "L"-shaped, and both ends of the third copper rod 36 are fixedly connected to the second connector 423; in order to be more compact, in this embodiment, the shape of the third copper rod 36 is adaptively changed so that the third copper rod 36 and the third output connection end 32 can be closer to the second output connection end 23.

[0068] like Figure 5 As shown, the first lateral output end 13 and the second lateral output end 22 are both provided with a waterproof groove 115, and the waterproof groove 115 is sleeved with an annular waterproof ring 116; preferably, the annular waterproof ring 116 has a double-peak structure; this makes the combined connector have good waterproof performance.

[0069] Both sides of the first lateral output end 13 and the second lateral output end 22 are provided with hooks 19, and the cross-sectional shape of the hooks 19 is conical. Both sides of the first lateral input end 21 and the second lateral input end 31 are provided with two symmetrical slots 20, and the size of the slots 20 matches the size of the hooks 19.

[0070] By designing the hook 19 to have a conical cross-sectional shape, the two hooks 19 are squeezed by the inner wall and approach each other when passing through the second shell 24 and the third shell 34, and the hook 19 is exposed when passing through the slot 20. At this time, the hook 19 is clamped inside the slot 20, and the side wall is fastened to achieve a fixed connection between the first shell 14 and the second shell 24 (or the second shell 24 and the third shell 34).

[0071] The method for using the multi-channel horizontal combination connector is as follows: first, select the number of output terminals required, thereby selecting the number of intermediate connectors 2; second, splice multiple intermediate connectors 2 together horizontally, wherein the first circular plug 251 of one intermediate connector 2 is inserted into the interior of the horizontal connection end 153 of the previous intermediate connector 2, and the hook 19 is also engaged with the slot 20; finally, insert the first circular plug 251 of the intermediate connector 2 into the horizontal connection end 153 in the main connector 1, and insert the horizontal connection end 153 of the last intermediate connector 2 into the horizontal male terminal 42 in the rear connector 3, thereby realizing the horizontal expansion of the connector. The interior is plug-in-type, and the exterior is engaged with the hook 19 and the slot 20, thereby realizing the internal connection of the connector and improving the integration of the connector. The present invention only needs to add an intermediate connector 2 between the main connector 1 and the rear connector 3 to realize horizontal expansion, which greatly reduces the connection cost and is conducive to large-scale application.

[0072] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A multi-channel lateral combined connector for photovoltaic use, characterized in that: The invention comprises a main connecting member (1) installed on one side, a rear connecting member (3) installed on the other side, and a plurality of intermediate connecting members (2) installed in the middle; the upper end of the main connecting member (1) is provided with an input connecting terminal (11) for connecting input, and the lower end is provided with a first output connecting terminal (12) for output; the side end is provided with a first transverse output terminal (13) for output; the intermediate connecting member (2) is provided with a first transverse input terminal (21) for connecting to the first transverse output terminal (13) on one side, a second transverse output terminal (22) for output on the other side, and a second output connecting terminal (23) for output on the lower end; the side end of the rear connecting member (3) is provided with a second transverse input terminal (31) for connecting to the second transverse output terminal (22), and the lower end is provided with a third output connecting terminal (32) for output; By laterally arranging a plurality of intermediate connecting pieces (2) between the main connecting piece (1) and the rear connecting piece (3), lateral expansion is achieved, so that the connector can be laterally expanded as required; A female terminal (52) is installed inside the input connection end (11); the female terminal (52) is used in pair with a male terminal (42), and the male terminal (42) is inserted into the female terminal (52); the female terminal (52) comprises a first contact piece (521), a first base body (522) and a first connecting piece (523); the first contact piece (521), the first base body (522) and the first connecting piece (523) are connected in sequence; The first output connection end (12), the second output connection end (23), the third output connection end (32) and the second lateral input end (31) are all provided with a male terminal (42), the male terminal (42) comprising a second contact piece (421), a second base body (422) and a second connection piece (423) connected in sequence; the second contact piece (421) is provided with a second circular plug (4211) at an end away from the second base body (422); the second circular plug (4211) is provided with a plurality of second spring sheets (4212) in close contact with an inserted component; the second spring sheets (4212) are elastic; The second spring piece (4212) expands outwards under the action of the elastic force, and the outer surface of the second spring piece (4212) contacts the inner surface of the first contact piece (521). At the same time, under the action of the elastic force, the outer surface of the second spring piece (4212) is in elastic and tight contact with the inner surface of the first contact piece (521); At least one convex body (4213) is also arranged at the end of the second elastic piece (4212); the convex body (4213) is a convex hull, and the convex body (4213) protrudes from the outer surface of the second elastic piece (4212), so that the convex body (4213) and the inner surface of the first contact piece (521) are in closer contact and better contact; The outer surface of the convex body (4213) is also provided with an arc chamfer to facilitate the insertion and removal of the second circular plug (4211); The second contact piece (421), the second base body (422) and the second connecting piece (423) are integrally formed; The main connecting member (1) comprises a first shell (14) mounted on the outside, a female terminal (52) being mounted on the upper end of the first shell (14), a male terminal (42) being mounted on the lower part, and a first T-shaped connecting member (15) being mounted on the middle part, the female terminal (52), the male terminal (42) and the first T-shaped connecting member (15) being connected via a first copper rod (16), the first T-shaped connecting member (15) being provided with an upper connecting end (151), a lower connecting end (152) and a transverse connecting end (153); the upper part of the first copper rod (16) is fixedly connected to the first connecting member (523), the lower part is fixedly connected to the second connecting member (423), and the middle part passes through the upper connecting end (151) and the lower connecting end (152); The female terminal (52), the male terminal (42) and the first T-shaped connector (15) are all tightly surrounded by the first copper rod (16) to achieve electrical connection; The second connecting member (423) and the first connecting member (523) are both provided with a plurality of convex ribs (17) for fixing the first copper rod (16); the plurality of convex ribs (17) are arranged side by side. The upper connecting end (151) and the lower connecting end (152) are both arc-shaped, and tightly wrap the first copper rod (16); the sides of the upper connecting end (151) and the lower connecting end (152) are both provided with a plurality of arc pieces (18) for wrapping the first copper rod (16); the addition of the arc pieces (18) is conducive to fixing the first copper rod (16), so that the first T-shaped connecting piece (15) is not easily deviated; The transverse connecting end (153) is provided with a third circular groove (1531), and a plurality of first elastic sheets (5212) are provided inside the third circular groove (1531); the first elastic sheets (5212) are recessed inwardly to form an elastic contact area (5213), and the elastic contact area (5213) is a planar concave structure; the third circular groove (1531) is sleeved with a third locking ring (1532); The intermediate connector (2) comprises a second shell (24) mounted on the outside, a second T-shaped connector (25) being mounted on the upper end of the second shell (24) and a male terminal (42) being mounted on the lower part, the second T-shaped connector (25) and the male terminal (42) being connected via a second copper rod (26), one end of the second T-shaped connector (25) being provided with a first circular plug (251) for being inserted into the interior of the transverse connecting end (153), the other end being provided with a transverse connecting end (153), and the lower end being provided with a lower connecting end (152), the upper part of the second copper rod (26) being fixedly connected to the lower connecting end (152), and the lower part being fixedly connected to the second connector (423); The intermediate connecting piece (2) serves as a connecting bridge, the first circular plug (251) is inserted into the interior of the transverse connecting end (153) as an input, the transverse connecting end (153) serves as a side output, and the lower connecting end (152) serves as a lower output. When multiple intermediate connecting pieces (2) are connected, the first circular plug (251) of one intermediate connecting piece (2) is inserted into the interior of the transverse connecting end (153) of another intermediate connecting piece (2), thereby achieving transverse splicing and adding multiple second output connecting ends (23); The transverse connecting end (153) is connected to the first circular plug (251), or the transverse connecting end (153) is connected to the male terminal (42); the elastic contact area (5213) in the transverse connecting end (153) presses the first circular plug (251), so that the first elastic sheet (5212) is in close contact with the first circular plug (251); The rear connecting member (3) comprises a third housing (34) mounted on the outside, a male terminal (42) for being inserted into the interior of the lateral connecting end (153) being mounted on the side end of the interior of the third housing (34), and a male terminal (42) being also mounted on the lower portion, the two male terminals (42) being connected via a third copper rod (36), the third copper rod (36) being "L"-shaped; both ends of the third copper rod (36) are fixedly connected to the second connecting member (423); The first lateral output end (13) and the second lateral output end (22) are both provided with a waterproof groove (115), and an annular waterproof ring (116) is sleeved on the waterproof groove (115); the annular waterproof ring (116) has a double-peak structure; hooks (19) are provided on both sides of the first lateral output end (13) and the second lateral output end (22), and the cross-sectional shape of the hooks (19) is conical; two symmetrical slots (20) are provided on both sides of the first lateral input end (21) and the second lateral input end (31), and the size of the slots (20) matches the size of the hooks (19).

2. A photovoltaic multi-channel transverse combined connector according to claim 1, characterized in that: A second locking ring (4221) is mounted on the second base body (422), a second circular groove (4222) is provided on the second base body (422), the second locking ring (4221) is sleeved inside the second circular groove (4222), and second locking pieces (4223) for locking inside the shell are evenly arranged on the outer surface of the second locking ring (4221).

3. A photovoltaic multi-channel transverse combined connector according to claim 1, characterized in that: The first contact piece (521) is provided with a plurality of first spring sheets (5212); one end of the first spring sheet (5212) is connected to the end of the first contact piece (521), and the other end is connected to the first base body (522); the first spring sheet (5212) is recessed inwardly to form an elastic contact area (5213), and the elastic contact area (5213) is a planar concave structure.

4. A photovoltaic multi-channel transverse combined connector according to claim 3, characterized in that: A first circular groove (5211) is also provided on the first contact piece (521) and the first base body (522); a first locking ring (5221) is sleeved on the first circular groove (5211); and first locking pieces (5222) for locking inside the shell are evenly provided on the outer surface of the first locking ring (5221).

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