CN117394049B - Dustproof structure of photovoltaic connector - Google Patents

Dustproof structure of photovoltaic connector Download PDF

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Publication number
CN117394049B
CN117394049B CN202311687303.0A CN202311687303A CN117394049B CN 117394049 B CN117394049 B CN 117394049B CN 202311687303 A CN202311687303 A CN 202311687303A CN 117394049 B CN117394049 B CN 117394049B
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CN
China
Prior art keywords
ring
male
wire
female
mounting ring
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Active
Application number
CN202311687303.0A
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Chinese (zh)
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CN117394049A (en
Inventor
吴瑜
刘德才
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Dongguan Nangudi Electronics Co ltd
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Dongguan Nangudi Electronics Co ltd
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Priority to CN202311687303.0A priority Critical patent/CN117394049B/en
Publication of CN117394049A publication Critical patent/CN117394049A/en
Application granted granted Critical
Publication of CN117394049B publication Critical patent/CN117394049B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/34Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention belongs to the field of cable connectors, and particularly relates to a dustproof structure of a photovoltaic connector. The novel multifunctional electric wire pressing device comprises a male component and a female component, wherein the male component comprises a male terminal, the female component comprises a female terminal, the male terminal and the female terminal comprise a plurality of wire pressing units uniformly distributed along the circumferential direction, each wire pressing unit comprises a base plate and an elastic sheet, the tail end of the base plate is provided with a spike, one end of the elastic sheet, which is close to the spike, is connected with the base plate, the other end of the elastic sheet freely extends, and the elastic sheet is initially in a flattened state. The line pressing unit can be inserted between the line core and the line skin in the process of feeding the photovoltaic cable to separate the line core from the line skin, and the separated line skin is completely reserved, so that the photovoltaic cable is not required to be peeled in advance when the photovoltaic cable is inserted, the exposed area of the line core is reduced, the contact between the line core and dust can be greatly reduced before installation and after insertion, the dustproof effect is obviously improved, and the connection is stable and reliable.

Description

Dustproof structure of photovoltaic connector
Technical Field
The invention relates to the field of cable connectors, in particular to a dustproof structure of a photovoltaic connector.
Background
The electric connector is an electronic element connected with two wires or active devices and is used for realizing the functions of circuit connection, signal transmission and the like. Besides meeting general performance requirements, the electric connector has the important requirements that the electric connector has to achieve good contact, reliable work and convenient maintenance, and whether the work reliability directly affects the normal work of a circuit relates to the security risk of the whole host. The existing photovoltaic connector generally needs to be in pressure connection with the male terminal and the female terminal of the connector after the cable is peeled off during installation, then the assembly connection is carried out, a cleaner environment is needed during the assembly to ensure that the terminal is not contacted with dust, a good sealing environment is needed after the installation is finished to ensure that the terminal is reliably contacted with the cable, but once the cable is peeled off, the cable is difficult to ensure that the cable is not polluted with dust, and the conductive performance of the terminal is easily affected after the cable is contacted with dust; meanwhile, the existing connector needs to be matched with more specialized tools, such as wire stripper, wire pressing pliers, special nuts and the like, is complex in manual operation and is not convenient to use.
The information disclosed in the background section of this application is only for enhancement of understanding of the general background of this application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
According to the defects of the prior art, the invention provides a dustproof structure of a photovoltaic connector, so as to solve the problems of poor dustproof capability and complicated installation operation of the existing connector.
The dustproof structure of the photovoltaic connector adopts the following technical scheme: the dustproof structure of the photovoltaic connector comprises a male head assembly and a female head assembly, wherein the male head assembly comprises a male head shell and a male head terminal inserted in the male head shell, the female head assembly comprises a female head shell and a female head terminal inserted in the female head shell, the male head terminal comprises a first connecting part and a second connecting part which are connected along the same axis, the female head terminal comprises a third connecting part and a fourth connecting part which are connected along the same axis, the first connecting part and the third connecting part are electrically connected after the male head shell and the female head shell are inserted, and the second connecting part and the fourth connecting part are used for being electrically connected with a photovoltaic cable;
the second connecting part and the fourth connecting part comprise a plurality of wire pressing units uniformly distributed along the circumferential direction, each wire pressing unit comprises a substrate and an elastic sheet, the tail end of the substrate is provided with a spike, the elastic sheet is positioned on the side surface of the substrate, which is far away from the center of the first connecting part or the third connecting part, one end of the elastic sheet, which is close to the spike, is connected with the substrate, the other end of the elastic sheet freely extends, and the elastic sheet is initially in a flattening state;
the male head assembly and the female head assembly both further comprise wire threading rings and push-push rings, wherein the wire threading rings are used for feeding the photovoltaic cable in a direction close to the male head terminal or the female head terminal, so that the wire pressing units penetrate between the wire core and the wire skin of the photovoltaic cable and separate the wire core from the wire skin; the push ring is used for pushing the elastic sheet to move towards one end close to the spike after the photovoltaic cable is installed in place, so that the elastic sheet deforms and bulges to prop up the wire skin towards the direction far away from the axis of the photovoltaic cable, and the male head shell or the female head shell, the wire skin, the wire pressing unit and the wire core generate mutual abutting force.
Optionally, the side of the base plate, which is close to the center of the first connecting part or the third connecting part, is connected with a pressing rib, and the pressing rib is perpendicular to the base plate and is in an inverted trapezoid structure.
Optionally, the dustproof structure of the photovoltaic connector further comprises a locking ring, the locking ring can rotate and can be sleeved on the male shell or the female shell in a sliding manner, and the locking ring can be sleeved on the outer side of the threading ring and is in threaded connection with the threading ring.
Optionally, the dustproof structure of the photovoltaic connector further comprises an adjusting ring, the adjusting ring is arranged on the male head shell or the female head shell in a unidirectional rotation mode, the pushing ring is connected with the adjusting ring through a matching structure, and the matching structure is configured to push the pushing ring to move in a direction close to the elastic sheet when the adjusting ring rotates.
Optionally, the cooperation structure is including setting up in the wedge of adjusting ring inner peripheral wall, and the wedge has a plurality ofly and follows adjusting ring's circumferencial direction equipartition, and the outer peripheral wall of pushing away the ring is close to the one end of wedge and is provided with the wedge groove, and the wedge groove has a plurality ofly and follows pushing away the circumferencial direction equipartition of ring, and the wedge cartridge is in the wedge groove.
Optionally, the male housing and the female housing are both provided with first unidirectional ratchets, one side end surface of the adjusting ring is provided with second unidirectional ratchets, and the second unidirectional ratchets are inserted into tooth grooves of two adjacent first unidirectional ratchets, so that the adjusting ring rotates unidirectionally.
Optionally, the male housing comprises a male housing body, an inner mounting ring and an outer mounting ring; the inner mounting ring is arranged in the male shell main body, the inner mounting ring is communicated with the interior of the male shell main body, the outer mounting ring is arranged at one end of the male shell main body, which is close to the inner mounting ring, the outer mounting ring and the inner mounting ring are coaxial, and the inner diameter of the outer mounting ring is larger than the outer diameter of the inner mounting ring;
a compression ring is coaxially inserted in the outer mounting ring and positioned at the outer side of the line pressing unit, and the compression ring is detachably connected with the outer mounting ring; the adjusting ring is sleeved on the outer side of the inner mounting ring, a notch is formed in the male shell main body corresponding to the adjusting ring, the pushing ring is located inside the adjusting ring and is in sliding connection with the inner mounting ring, the locking ring and the threading ring are both arranged on the outer mounting ring, and the locking ring is located on one side close to the inner mounting ring.
Optionally, the inside of wire guide ring is provided with one-way fixture block, and one-way fixture block has a plurality ofly and along the circumferencial direction equipartition of wire guide ring, and one end of one-way fixture block has elasticity, and one end of one-way fixture block is connected with the wire guide ring, the other end freely overhang and to the direction slope that is close to the line ball unit, and wire guide ring inside has the pressure spring, and pressure spring one end is connected with the clamp ring, and the other end is connected with one-way fixture block.
Optionally, the outer peripheral wall of interior collar is provided with annular and chute, and the chute is located one side that is close to outer collar on the interior collar than the annular, chute and annular intercommunication, and the inner peripheral wall of adjusting ring is provided with spacing post, and spacing post can get into the annular and rotate along the annular along the chute.
Optionally, the terminal surface that adjusting ring and clamp ring are close to each other all is provided with first seal groove, is provided with the sealing washer in the first seal groove.
The beneficial effects of the invention are as follows: according to the dustproof structure of the photovoltaic connector, the wire pressing units of the male terminal and the female terminal are respectively provided with the base plate and the elastic piece, the base plate is provided with the spines, the wire pressing units are inserted between the wire core and the wire skin of the photovoltaic cable in the feeding process of the photovoltaic cable to separate the wire skin from the wire core, and the separated wire skin is completely reserved, so that peeling treatment is not required to be carried out on the photovoltaic cable in advance when the photovoltaic cable is inserted, the exposed area of the wire core of the photovoltaic cable is reduced, the contact between the wire core and dust can be greatly reduced before installation and after insertion, the dustproof effect is obviously improved, and the reliability of electric connection is ensured.
Furthermore, the adjusting ring, the pushing ring, the locking ring, the compression ring and the threading ring can be sequentially inserted into the male head shell or the female head shell, when the photovoltaic cable is installed, the photovoltaic cable only needs to be threaded into the threading ring to push the threading ring to approach to the male head terminal or the female head terminal, then the locking ring is rotated to lock the threading ring, the adjusting ring is rotated, the pushing ring pushes the elastic sheet to tightly push the elastic sheet, no tool is needed in the whole installation process, and the installation is convenient, fast, efficient and high in practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, it being understood that these drawings are not necessarily drawn to scale.
FIG. 1 is a schematic view of the overall structure of a dustproof structure of a photovoltaic connector according to the present invention;
FIG. 2 is a schematic diagram of the installation of the male component and the photovoltaic cable according to the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is an exploded view of the male assembly of FIG. 2 (including a photovoltaic cable with a front end of the photovoltaic cable in a cable skin-supported condition);
FIG. 7 is a schematic view of the male housing of the present invention;
FIG. 8 is a cross-sectional view of the male housing;
FIG. 9 is a schematic diagram of a medium voltage line unit structure according to the present invention;
FIG. 10 is a schematic view of the structure of the adjusting ring of the present invention;
FIG. 11 is a schematic view of a push ring according to the present invention;
FIG. 12 is a schematic view of the assembled female assembly and photovoltaic cable of the present invention;
fig. 13 is an exploded view of the female assembly of fig. 12 (including a photovoltaic cable with a front end of the photovoltaic cable in a cable skin-supported condition).
In the figure:
100. a male component;
110. a male housing; 111. a male housing body; 1111. a plug block; 112. a second seal groove; 113. a limiting ring; 114. an inner mounting ring; 1141. limiting spring blocks; 1142. a guide post; 1143. a clamping groove; 1144. a chute; 1145. a ring groove; 1146. a first one-way ratchet; 115. an outer mounting ring; 1151. a one-way baffle ring; 1152. an outer chute;
120. a male terminal; 121. a convex ring; 122. a wire pressing unit; 1221. pressing ribs; 1222. an elastic sheet; 1223. a pushing block; 1224. a substrate;
130. an adjusting ring; 131. a second one-way ratchet; 132. a friction bar; 133. a first seal groove; 134. wedge blocks; 135. a limit column;
140. pushing the push ring; 141. a through hole; 142. wedge-shaped grooves;
150. a locking ring;
160. a clamp ring;
170. threading a wire ring; 171. a unidirectional clamping block; 172. a pressure spring;
200. a female head assembly; 210. a female housing; 211. a slot; 220. a female terminal;
300. a photovoltaic cable; 310. a wire core; 320. a thread skin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 13, the dustproof structure of a photovoltaic connector provided in the embodiment of the invention includes a male component 100 and a female component 200, the male component 100 includes a male housing 110 and a male terminal 120 inserted into the male housing 110, the female component 200 includes a female housing 210 and a female terminal 220 inserted into the female housing 210, the male terminal 120 includes a first connection portion and a second connection portion connected along the same axis, the female terminal 220 includes a third connection portion and a fourth connection portion connected along the same axis, and the first connection portion and the third connection portion are electrically connected after the male housing 110 and the female housing 210 are inserted, and the second connection portion and the fourth connection portion are used for being electrically connected with a photovoltaic cable 300.
The second connecting portion and the fourth connecting portion have the same structure and all include a plurality of line ball units 122, a plurality of line ball units 122 are evenly distributed along the circumferencial direction, every line ball unit 122 all includes base plate 1224 and elastic piece 1222, the end of base plate 1224 (i.e. the one end of keeping away from first connecting portion or third connecting portion) has the spike, elastic piece 1222 is located the side of base plate 1224 keeping away from first connecting portion or third connecting portion centre of a circle, the one end that elastic piece 1222 is close to the spike is connected with base plate 1224, the other end freely overhang, elastic piece 1222 is in the flatly state initially.
The male assembly 100 and the female assembly 200 each further comprise a wire-threading ring 170 and a pushing ring 140, wherein the wire-threading ring 170 is used for feeding the photovoltaic cable 300 in a direction approaching to the male terminal 120 or the female terminal 220, so that the wire-threading unit 122 pierces between the wire core 310 and the wire sheath 320 of the photovoltaic cable 300 to separate the wire core 310 from the wire sheath 320; the push ring 140 is used for pushing the elastic piece 1222 to move towards one end close to the spike after the photovoltaic cable 300 is installed in place, so that the elastic piece 1222 deforms and bulges to prop up the wire sheath 320 in a direction away from the axis of the photovoltaic cable 300, and further, the male housing 110 or the female housing 210, the wire sheath 320, the wire pressing unit 122 and the wire core 310 generate mutual abutting force, so that reliable electrical connection between the wire pressing unit 122 and the wire core 310 is realized.
More specifically, the wire loop 170 is disposed along the male terminal 120 or the female terminal 220 or is slidably disposed on the male housing 110 or the female housing 210, and is capable of clamping the photovoltaic cable 300, the push ring 140 is slidably inserted into the wire pressing unit 122 along the axial direction of the male terminal 120 or the female terminal 220 and is slidably connected with the male housing 110 or the female housing 210, one end of the push ring 140 is in stop fit with the first connection portion or the third connection portion, the other end is in stop fit with the end of the elastic piece 1222 away from the spike, that is, the push ring 140 is located between the end of the elastic piece 1222 away from the spike and the first connection portion or the third connection portion, in order to increase the contact area, the push ring 140 is facilitated to push the elastic piece 1222 to move, the end of the elastic piece 1222 away from the spike is provided with a push block 1223, and the push ring 140 is in butt joint.
When the photovoltaic cable 300 is in use, the photovoltaic cable 300 is coaxially arranged in the center of the wire passing ring 170 in a penetrating way and clamped by the wire passing ring 170, the wire passing ring 170 drives the photovoltaic cable 300 to move towards the direction close to the wire pressing unit 122, a spike penetrates between the wire core 310 and the wire skin 320 after the photovoltaic cable 300 contacts the wire pressing unit 122, the wire pressing unit 122 gradually separates the wire core 310 from the wire skin 320 along with the movement of the wire passing ring 170 until the photovoltaic cable 300 is inserted in place, after the photovoltaic cable 300 is inserted in place, the part of the photovoltaic cable 300 overlapped with the wire pressing unit 122 is completely tilted (the whole wire skin 320 is also provided), and the wire core 310 and the wire skin 320 are in a separated state; then, the pushing ring 140 pushes the elastic piece 1222 to move in the direction close to the spike, so that the elastic piece 1222 is tilted, the elastic piece 1222 pushes the wire cover 320 to generate an abutting force with the male housing 110 and the female housing 210, and the elastic piece 1222 presses the wire core 310 by the wire pressing unit 122, so that the male housing 110 or the female housing 210, the wire cover 320, the wire pressing unit 122 and the wire core 310 are mutually abutted, and the insertion of the photovoltaic cable 300 is completed. According to the invention, through the arrangement of the wire pressing unit 122, the wire sheath 320 is separated from the wire core 310 in the process of inserting the photovoltaic cable 300, and the separated wire sheath 320 is completely reserved, so that peeling treatment on the photovoltaic cable 300 is not required in advance during the process of inserting the photovoltaic cable 300, the exposed area of the wire core 310 is reduced, the contact between the wire core 310 and dust can be greatly reduced before installation and after insertion (i.e. during working), the dustproof effect is obviously improved, and the reliability of electric connection is ensured.
Further, the side surface of the substrate 1224, which is close to the center of the first connecting portion or the third connecting portion, is connected with a pressing rib 1221, the pressing rib 1221 is perpendicular to the substrate 1224 and has an inverted trapezoid structure, and the pressing rib 1221 is provided to enable the substrate 1224 to be inserted between the wire core 310 and the wire skin 320, and then the pressing rib 1221 can be inserted into the wire core 310, so that the reliability of electrical connection is increased.
In a further embodiment, the dustproof structure of the photovoltaic connector provided by the present invention further includes a locking ring 150, where the locking ring 150 is disposed on the male housing 110 or the female housing 210, and the locking ring 150 is used for locking the wire through ring 170. In one embodiment, the locking ring 150 is rotatably and slidably sleeved on the male housing 110 or the female housing 210, an inner circumferential wall of the locking ring 150 is provided with an inner thread, an outer circumferential wall of the threading ring 170 is provided with an outer thread, and the locking ring 150 is sleeved outside the threading ring 170 and is in threaded connection with the threading ring 170, so as to lock the threading ring 170.
In a further embodiment, the dustproof structure of the photovoltaic connector provided by the invention further comprises an adjusting ring 130, the adjusting ring 130 is disposed on the male housing 110 or the female housing 210, and the adjusting ring 130 is used for controlling the push ring 140 to move.
Specifically, the adjusting ring 130 is disposed on the male housing 110 or the female housing 210 in a unidirectional rotation manner, the pushing ring 140 is connected to the adjusting ring 130 through a matching structure, and the matching structure is configured to push the pushing ring 140 to move in a direction approaching to the elastic piece 1222 when the adjusting ring 130 rotates.
The cooperation structure is including setting up in the wedge 134 of adjusting ring 130 inner peripheral wall, and wedge 134 has a plurality ofly and follows adjusting ring 130's circumferencial direction equipartition, and the outer peripheral wall of pushing away ring 140 is close to the one end of wedge 134 and is provided with wedge groove 142, and wedge groove 142 has a plurality ofly and follows pushing away the circumferencial direction equipartition of ring 140, and wedge 134 cartridge is in wedge groove 142. After the photovoltaic cable 300 is inserted in place, the adjusting ring 130 is rotated, and the adjusting ring 130 pushes the push ring 140 to move in a direction approaching to the elastic piece 1222 under the cooperation of the wedge block 134 and the wedge groove 142, so that the elastic piece 1222 is pushed up, and the position of the push ring 140 can be reliably maintained because the adjusting ring 130 can only rotate in one direction.
Further, the male housing 110 and the female housing 210 are provided with first unidirectional ratchets 1146, one side end surface of the adjusting ring 130 is provided with second unidirectional ratchets 131, and the second unidirectional ratchets 131 are inserted into tooth grooves of two adjacent first unidirectional ratchets 1146, so that the adjusting ring 130 rotates unidirectionally.
In a further embodiment, a plurality of unidirectional clamping blocks 171 are disposed inside the wire passing ring 170, the unidirectional clamping blocks 171 are uniformly distributed along the circumferential direction of the wire passing ring 170, the unidirectional clamping blocks 171 have elasticity, one end of each unidirectional clamping block 171 is connected with the wire passing ring 170, the other end of each unidirectional clamping block 171 freely extends in a cantilever manner and inclines towards a direction close to the wire pressing unit 122, a pressure spring 172 is disposed inside the wire passing ring 170, one end of the pressure spring 172 is relatively fixed with the male housing 110 or the female housing 210, and the other end of the pressure spring 172 is connected with the unidirectional clamping blocks 171.
After the photovoltaic cable 300 penetrates into the wire-threading ring 170, under the action of the pressure spring 172, one end of the unidirectional clamping block 171, which is close to the photovoltaic cable 300, has a tendency to deflect in a direction away from the wire-threading unit 122, so that the photovoltaic cable 300 is clamped. As the wire loop 170 continuously moves toward the direction approaching the wire pressing unit 122, the pressing force of the pressure spring 172 is gradually increased, so that the clamping force of the unidirectional clamping block 171 on the photovoltaic cable 300 is gradually increased, and the photovoltaic cable 300 is not easy to break away from the wire loop 170.
In a further embodiment, to facilitate assembly, the male housing 110 includes a male housing body 111, an inner mounting ring 114, and an outer mounting ring 115.
The inside cavity of public shell main part 111, interior collar 114 set up in public shell main part 111 inside, and interior collar 114 link up with public shell main part 111 inside and form main installation cavity, and outer collar 115 sets up in public shell main part 111 and is close to the one end of interior collar 114, and outer collar 115 and interior collar 114 coaxial and the internal diameter of outer collar 115 is greater than the external diameter of interior collar 114.
The adjusting ring 130 is sleeved on the outer side of the inner mounting ring 114, a notch is formed in the male shell main body 111 corresponding to the position of the adjusting ring 130 so as to facilitate rotation of the adjusting ring 130, the pushing ring 140 is located inside the adjusting ring 130 and is slidably connected with the inner mounting ring 114, the locking ring 150 and the threading ring 170 are both arranged on the outer mounting ring 115, and the locking ring 150 is located on one side close to the inner mounting ring 114.
The compression ring 160 is coaxially inserted in the outer mounting ring 115 and positioned outside the pressing line unit 122, the compression ring 160 is detachably connected with the outer mounting ring 115, and one end of the compression spring 172, which is far away from the unidirectional clamping block 171, is connected with the end face of the compression ring 160. In the invention, the clamping ring 160 is connected with the outer mounting ring 115 by adopting a threaded connection mode, the elastic piece 1222 is deformed and swelled to tightly prop up the wire skin 320 of the photovoltaic cable 300 with the clamping ring 160, and the detachable clamping ring 160 is arranged, so that the male head assembly 100 and the female head assembly 200 are more convenient and faster to assemble.
Further, in order to facilitate the rotation of the adjusting ring 130, the outer peripheral wall of the inner mounting ring 114 is provided with a ring groove 1145, the inner peripheral wall of the adjusting ring 130 is provided with a limiting post 135, the limiting post 135 is located in the ring groove 1145 and can rotate along the ring groove 1145, and the first unidirectional ratchet 1146 is disposed on the end face of the male housing main body 111 at the junction with the inner mounting.
In order to mount the adjusting ring 130 on the inner mounting ring 114, the outer peripheral wall of the inner mounting ring 114 is further provided with a chute 1144, the chute 1144 is located on one side of the inner mounting ring 114, which is close to the outer mounting ring 115, compared with the annular groove 1145, the chute 1144 is communicated with the annular groove 1145, the limit post 135 can enter the annular groove 1145 along the chute 1144, after the limit post 135 enters the annular groove 1145, the first unidirectional ratchet 1146 and the second unidirectional ratchet 131 are mutually matched to prevent the adjusting ring 130 from rotating reversely, and under the limitation of the chute 1144 and the unidirectional structure, the limit post 135 cannot be separated from the annular groove 1145 to enter the chute 1144, so that the axial position of the adjusting ring 130 is limited.
Further, the outer peripheral wall of the inner mounting ring 114 is further provided with a slot 1143, the slot 1143 is located at one side of the chute 1144 near the outer mounting ring 115 and penetrates through the end face of the inner mounting ring 114 near the outer mounting ring 115, the slot 1143 is communicated with the chute 1144, and the wedge block 134 is located in the slot 1143 after the adjusting ring 130 is mounted in place.
Further, the outer circumferential wall of the adjustment ring 130 is provided with friction strips 132 to facilitate rotation of the adjustment ring 130.
Further, the end surfaces of the adjusting ring 130 and the compression ring 160, which are close to each other, are respectively provided with a first sealing groove 133, and a sealing ring is arranged in the first sealing groove 133 to prevent dust from entering the inside of the male housing 110 or the female housing 210 from the joint of the adjusting ring 130 and the compression ring 160.
In order to facilitate the installation of the push ring 140, the end face of the inner mounting ring 114 is provided with a plurality of guide posts 1142, the guide posts 1142 are uniformly distributed along the circumferential direction of the inner mounting ring 114, the push ring 140 is provided with a plurality of through holes 141, the plurality of through holes 141 are uniformly distributed along the circumferential direction of the push ring 140, and the push ring 140 is slidably inserted into the guide posts 1142 through the through holes 141.
Further, for the installation of the locking ring 150, the outer mounting ring 115 is provided with a unidirectional blocking ring 1151, the unidirectional blocking ring 1151 has elasticity, one end of the locking ring 150 has an inwardly extending blocking edge, and the outer edge of the blocking edge is chamfered, so that the locking ring 150 can pass over the unidirectional blocking ring 1151 to be sleeved on the outer mounting ring 115. It can be appreciated that, the outer mounting ring 115 is provided with a receiving groove corresponding to the one-way stop ring 1151, when the locking ring 150 extrudes the one-way stop ring 1151, the one-way stop ring 1151 can approach the receiving groove, so that the locking ring 150 can pass through conveniently, after the locking ring 150 passes through, the one-way stop ring 1151 resets to limit the right limit position of the locking ring 150, and the left limit position of the locking ring 150 is limited by the male shell main body 111.
To facilitate installation of wire loop 170, outer collar 115 is provided with an outer chute 1152, and wire loop 170 is provided with a protrusion slidably disposed in outer chute 1152 to limit wire loop 170.
It should be noted that, the female housing 210 includes a female housing main body, an inner mounting ring 114 and an outer mounting ring 115, and for implementing the clamping connection between the male assembly 100 and the female assembly 200, the structures of the female housing main body and the male housing main body 111 are slightly different, and the structures of the inner mounting ring 114 and the outer mounting ring 115 of the female housing 210 are the same as those of the male housing 110, which will not be repeated herein.
In a further embodiment, to facilitate the installation of the male terminal 120 and the female terminal 220, the inner portions (in the main installation cavity) of the male housing 110 and the female housing 210 are provided with a limiting ring 113 and limiting elastic blocks 1141, and the limiting elastic blocks 1141 and the limiting ring 113 are axially spaced, and the limiting elastic blocks 1141 are plural and uniformly distributed along the circumferential direction.
The male terminal 120 and the female terminal 220 are respectively provided with a convex ring 121, the convex rings 121 are positioned at a first connecting part of the male terminal 120 and a second connecting part of the female terminal 220, the convex rings 121 are in a frustum shape, the large ends of the convex rings 121 face to the line pressing unit 122, the convex rings 121 squeeze and pass through the limiting elastic blocks 1141 during installation, and then the small ends of the convex rings 121 abut against the limiting rings 113, and the large ends abut against the limiting elastic blocks 1141.
In a further embodiment, the male housing 110 is provided with a plug 1111, the end of the plug 1111 is in a reverse hook structure, the female housing 210 is provided with a through slot 211, when the male housing 110 and the female housing 210 are in a plug-in state, the plug 1111 is plugged into the slot 211, and the hook is hooked to the female housing 210.
The first connection part of the male terminal 120 is in a columnar structure, the third connection part of the female terminal 220 is in a columnar structure, the center of the third connection part is provided with a slot 211, and the male terminal 120 is inserted into the slot 211 of the female terminal 220 during insertion.
The second sealing grooves 112 are respectively arranged in the male housing 110 and the female housing 210, and sealing rings are arranged in the second sealing grooves 112 so as to improve the tightness of the male housing 110 and the female housing 210 after being inserted.
In combination with the above embodiment, the application principle and working process of the invention are as follows:
referring to fig. 6, when the male assembly 100 is assembled, the male terminal 120 is first installed, and the male terminal 120 is coaxially installed into the male housing 110 until the collar 121 passes over the limit spring 1141 and is clamped with the limit spring 1141, and the male terminal is installed in place, and the state of the male terminal is referred to fig. 4;
the adjusting ring 130 is installed, the adjusting ring 130 is installed in the male housing 110, the limiting column 135 enters the chute 1144 along the clamping groove 1143 until entering the annular groove 1145, then the second unidirectional ratchet 131 and the first unidirectional ratchet 1146 are in mutually limiting fit, so that the adjusting ring 130 can only rotate unidirectionally relative to the male housing 110, the rotation direction is matched with the inclination direction of the wedge block 134 between the adjusting ring 130 and the pushing ring 140, and the adjusting ring 130 rotates anticlockwise (right view of fig. 4).
The push ring 140 is installed, the push ring 140 is installed in the male housing 110, the guide post 1142 passes through the through hole 141, the push ring 140 passes over the elastic piece 1222 of the male terminal 120 in the pushing process, the push ring 140 is pushed to the leftmost end of the guide post 1142, at this time, one end of the push ring 140 abuts against the first connecting portion of the male terminal 120, the other end abuts against the elastic piece 1222, and the adjusting ring 130 is rotated to enable the wedge block 134 to be matched with the wedge groove 142.
The clamping ring 160 is installed, the clamping ring 160 is inserted into the male housing 110, the clamping ring 160 is in threaded connection with the male housing 110 until the clamping ring 160 rotates to the leftmost end of the outer mounting ring 115 and abuts against the adjusting ring 130, a first sealing groove 133 is formed in one end, close to the clamping ring 160, of the adjusting ring 130, a first sealing groove 133 is also formed in the end face of the clamping ring 160, and a sealing ring is arranged in the first sealing groove 133 to seal a joint between the clamping ring 160 and the adjusting ring 130.
Installing the locking ring 150 and the wire threading ring 170, installing the locking ring 150 into the outer mounting ring 115, and pushing it to the leftmost end of the outer mounting ring 115; the wire loop 170 is installed on the outside of the outer mounting ring 115 and positioned to the far right, and the male assembly 100 is assembled.
When connecting the photovoltaic cable 300 to the male assembly 100, one end of the photovoltaic cable 300 is first inserted into the wire loop 170 and fed into the wire loop 170 until the spike abuts the end of the photovoltaic cable 300. Then, the wire loop 170 is pushed to gradually approach the locking ring 150, the photovoltaic cable 300 is synchronously pushed to the wire pressing unit 122 in the moving process of the wire loop 170, the wire pressing unit 122 gradually pierces the photovoltaic cable 300, the wire skin 320 and the wire core 310 of the photovoltaic cable 300 are separated, meanwhile, the press bar 1221 is gradually inserted into the wire core 310, the wire loop 170 is pushed repeatedly and reciprocally until the wire loop 170 is not pushed, at this time, the locking ring 150 is screwed to the wire loop 170, and then the position of the wire loop 170 is locked. Then, the adjusting ring 130 is rotated, the pushing ring 140 is driven by the adjusting ring 130 to move towards the direction close to the elastic piece 1222, the elastic piece 1222 is pushed by the pushing ring 140 to deform and bulge by the pushing ring 1222, the wire skin 320 is pressed against the inner wall of the tightening ring 160 after the elastic piece 1222 bulges, the wire core 310 is pressed against the base plate 1224, and then the male or female head shell 110 or 210, the wire skin 320, the wire pressing unit 122 and the wire core 310 are mutually pressed against each other, so that the tightness is good after assembly, and the connection is firm and reliable.
The female assembly 200 is assembled in the same manner as the male assembly 100, wherein the male terminal 120 and the female terminal 220 are made of metal conductive materials, and the other are made of insulating materials. It can be understood that the assembly of the male component 100 and the assembly of the female component 200 can be installed by the user, or can be completed in a factory before the equipment leaves the factory, and the photovoltaic cable 300 can be inserted into the male component 100 and the female component 200 during use.
In operation, the male assembly 100 and the female assembly 200 can be used after being plugged.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (8)

1. The dustproof structure of the photovoltaic connector is characterized by comprising a male component and a female component, wherein the male component comprises a male shell and a male terminal inserted in the male shell, the female component comprises a female shell and a female terminal inserted in the female shell, the male terminal comprises a first connecting part and a second connecting part which are connected along the same axis, the female terminal comprises a third connecting part and a fourth connecting part which are connected along the same axis, the first connecting part and the third connecting part are electrically connected after the male shell and the female shell are inserted, and the second connecting part and the fourth connecting part are used for being electrically connected with a photovoltaic cable;
the second connecting part and the fourth connecting part comprise a plurality of wire pressing units uniformly distributed along the circumferential direction, each wire pressing unit comprises a substrate and an elastic sheet, the tail end of the substrate is provided with a spike, the elastic sheet is positioned on the side surface of the substrate, which is far away from the center of the first connecting part or the third connecting part, one end of the elastic sheet, which is close to the spike, is connected with the substrate, the other end of the elastic sheet freely extends, and the elastic sheet is initially in a flattening state;
the male head assembly and the female head assembly both further comprise wire threading rings and push-push rings, wherein the wire threading rings are used for feeding the photovoltaic cable in a direction close to the male head terminal or the female head terminal, so that the wire pressing units penetrate between the wire core and the wire skin of the photovoltaic cable and separate the wire core from the wire skin; the push ring is used for pushing the elastic sheet to move towards one end close to the spike after the photovoltaic cable is installed in place, so that the elastic sheet deforms and bulges to prop up the wire skin in the direction away from the axis of the photovoltaic cable, and the male head shell or the female head shell, the wire skin, the wire pressing unit and the wire core generate mutual abutting force;
the dustproof structure of the photovoltaic connector further comprises an adjusting ring, the adjusting ring is arranged on the male head shell or the female head shell in a unidirectional rotation mode, the pushing ring is connected with the adjusting ring through a matching structure, and the matching structure is configured to push the pushing ring to move in a direction close to the elastic piece when the adjusting ring rotates; the cooperation structure is including setting up in the wedge of adjusting ring inner peripheral wall, and the wedge has a plurality ofly and follows adjusting ring's circumferencial direction equipartition, and the outer peripheral wall of pushing away the ring is close to the one end of wedge and is provided with the wedge groove, and the wedge groove has a plurality ofly and follows pushing away the circumferencial direction equipartition of ring, and the wedge cartridge is in the wedge groove.
2. The dustproof structure of claim 1, wherein the side surface of the substrate, which is close to the center of the first connecting portion or the third connecting portion, is connected with a pressing rib, and the pressing rib is perpendicular to the substrate and has an inverted trapezoid structure.
3. The dustproof structure of a photovoltaic connector according to claim 1, further comprising a locking ring, wherein the locking ring can rotate and can be slidably sleeved on the male housing or the female housing, and the locking ring can be sleeved on the outer side of the threading ring and is in threaded connection with the threading ring.
4. The dustproof structure of a photovoltaic connector according to claim 1, wherein first unidirectional ratchets are arranged on the male housing and the female housing, second unidirectional ratchets are arranged on one side end face of the adjusting ring, and the second unidirectional ratchets are inserted into tooth grooves of two adjacent first unidirectional ratchets, so that the adjusting ring rotates unidirectionally.
5. A dust protection structure for a photovoltaic connector according to claim 3, wherein the male housing comprises a male housing body, an inner mounting ring and an outer mounting ring; the inner mounting ring is arranged in the male shell main body, the inner mounting ring is communicated with the interior of the male shell main body, the outer mounting ring is arranged at one end of the male shell main body, which is close to the inner mounting ring, the outer mounting ring and the inner mounting ring are coaxial, and the inner diameter of the outer mounting ring is larger than the outer diameter of the inner mounting ring;
a compression ring is coaxially inserted in the outer mounting ring and positioned at the outer side of the line pressing unit, and the compression ring is detachably connected with the outer mounting ring; the adjusting ring is sleeved on the outer side of the inner mounting ring, a notch is formed in the male shell main body corresponding to the adjusting ring, the pushing ring is located inside the adjusting ring and is in sliding connection with the inner mounting ring, the locking ring and the threading ring are both arranged on the outer mounting ring, and the locking ring is located on one side close to the inner mounting ring.
6. The dustproof structure of a photovoltaic connector according to claim 5, wherein a plurality of unidirectional clamping blocks are arranged in the wire threading ring and uniformly distributed along the circumferential direction of the wire threading ring, the unidirectional clamping blocks have elasticity, one end of each unidirectional clamping block is connected with the wire threading ring, the other end of each unidirectional clamping block freely extends and inclines towards a direction close to the wire pressing unit, a pressure spring is arranged in the wire threading ring, one end of the pressure spring is connected with the compression ring, and the other end of the pressure spring is connected with the unidirectional clamping block.
7. The dustproof structure of a photovoltaic connector according to claim 5, wherein the outer peripheral wall of the inner mounting ring is provided with a ring groove and a chute, the chute is located on the side of the inner mounting ring, which is close to the outer mounting ring, compared with the ring groove, the chute is communicated with the ring groove, the inner peripheral wall of the adjusting ring is provided with a limit post, and the limit post can enter the ring groove along the chute and rotate along the ring groove.
8. The dustproof structure of a photovoltaic connector according to claim 5, wherein the end surfaces of the adjusting ring and the pressing ring, which are close to each other, are provided with a first sealing groove, and a sealing ring is arranged in the first sealing groove.
CN202311687303.0A 2023-12-11 2023-12-11 Dustproof structure of photovoltaic connector Active CN117394049B (en)

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CN117578101B (en) * 2024-01-19 2024-03-19 天津市万博线缆有限公司 Connector is pulled out in tensile

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SE7903322L (en) * 1978-04-20 1979-10-21 Bunker Ramo WATERPROOF CABLE CONNECTOR
US7125283B1 (en) * 2005-10-24 2006-10-24 Ezconn Corporation Coaxial cable connector
US7674132B1 (en) * 2009-04-23 2010-03-09 Ezconn Corporation Electrical connector ensuring effective grounding contact
CN207896323U (en) * 2017-12-29 2018-09-21 江苏华兴通讯科技有限公司 One kind is for weaving class cable installation type connector
EP3832806A1 (en) * 2019-12-03 2021-06-09 Amphenol-Tuchel Electronics GmbH Spring sleeve, shielding sleeve for contacting shielding elements

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Publication number Priority date Publication date Assignee Title
SE7903322L (en) * 1978-04-20 1979-10-21 Bunker Ramo WATERPROOF CABLE CONNECTOR
US7125283B1 (en) * 2005-10-24 2006-10-24 Ezconn Corporation Coaxial cable connector
US7674132B1 (en) * 2009-04-23 2010-03-09 Ezconn Corporation Electrical connector ensuring effective grounding contact
CN207896323U (en) * 2017-12-29 2018-09-21 江苏华兴通讯科技有限公司 One kind is for weaving class cable installation type connector
EP3832806A1 (en) * 2019-12-03 2021-06-09 Amphenol-Tuchel Electronics GmbH Spring sleeve, shielding sleeve for contacting shielding elements

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