CN209858782U

CN209858782U - Three-way MC4 joint for photovoltaic

Info

Publication number: CN209858782U
Application number: CN201920417914.6U
Authority: CN
Inventors: 张盖
Original assignee: Beijing Xintai Green Energy Technology Co Ltd
Current assignee: Beijing Xintai Green Energy Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-27
Anticipated expiration: 2029-03-29

Abstract

The utility model provides a tee bend MC4 connects for photovoltaic, including the three way connection body, set up in the first connector of three way connection body one end with set up in two at least second connectors of the three way connection body other end, first connector includes first lock nut and first connector body, first connector body with first lock nut threaded connection, the second connector includes second lock nut and second connector body, the second connector body with second lock nut threaded connection, first sleeve pipe is worn to be equipped with by the inside fixed of first connector body, the inside fixed jack catch that is provided with two symmetries of first connector body, the second connector body with the first connector body passes through the jack catch block is connected. The utility model discloses can realize quick plug, convenient to use.

Description

Three-way MC4 joint for photovoltaic

Technical Field

The utility model relates to a fiber connector technical field, concretely relates to tee bend MC4 connects for photovoltaic.

Background

Because photovoltaic systems are exposed to weather, burning sun, and extreme temperature changes for long periods of time, the connectors must be able to accommodate these harsh environments. They are not only waterproof, resistant to high temperatures and resistant to weathering by ultraviolet rays, but also touch-protected, highly current-carrying and highly efficient. Meanwhile, low contact resistance is also an important consideration. The MC4 type of photovoltaic connector is on the market and is rapidly gaining market acceptance and is becoming the standard for photovoltaic connectors. Interconnect between the photovoltaic module or photovoltaic module and equipment such as dc-to-ac converter are connected and all need MC4 standard connector, and current tee bend MC4 connects and only can satisfy one-to-one subassembly or equipment connection, is difficult to support the one-to-two and connects the condition even one-to-many, is difficult to satisfy subassembly and two equipment interconnect's demand, simultaneously because the overwhelming majority of tee bend photovoltaic connector all is split type manufacturing, and the installation is inconvenient, connects the easy problem that produces not hard up.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the problem of providing tee bend MC4 joint for photovoltaic.

In order to solve the technical problem, the utility model discloses a technical scheme is: tee bend MC4 connects for photovoltaic, including the tee bend body, set up in the first connector of tee bend body one end with set up in two at least second connectors of the tee bend body other end, first connector includes first lock nut and first connector body, first connector body with first lock nut threaded connection, the second connector includes second lock nut and second connector body, the second connector body with second lock nut threaded connection, first sleeve pipe is worn to be equipped with by the inside fixation of first connector body, the inside fixed jack catch that is provided with two symmetries of first connector body, second connector body with first connector body passes through the jack catch block is connected.

Preferably, the second connector body sets up to hollow cavity, the cavity includes location portion, joint portion and fixed part, the second sleeve pipe is worn to be equipped with to the inside of cavity is fixed, location portion joint portion with the fixed part integration is connected, just the radial dimension of location portion is greater than the radial dimension of joint portion, the radial dimension of location portion with the radial dimension of fixed part equals, the sheathed tube internal diameter size of second with first sheathed tube external diameter size equals.

Preferably, the end part of the clamping jaw is fixedly connected with a clamping hook, the cross section of the clamping hook is conical, two symmetrical clamping grooves are formed in the clamping part, and the size of each clamping groove is matched with that of the clamping hook.

Preferably, the outer edge of the first sleeve is fixedly provided with two symmetrical protrusions, each protrusion is arranged opposite to the position of the clamping hook, the wall surface of the second sleeve is provided with two through holes in a penetrating manner, and the size of each through hole is matched with that of each protrusion.

Preferably, the inner wall of the second sleeve is symmetrically provided with two positioning grooves, and the width size of the positioning grooves in the pair is matched with the size of the protrusions.

Preferably, hand threads are uniformly arranged on the outer edges of the first locking nut and the second locking nut.

The utility model has the advantages and positive effects that:

(1) can make the connection between first sleeve pipe and the second sleeve pipe inseparabler through mutually supporting between constant head tank and the arch, it is not hard up to have solved the link that the live time has been of a specified duration trip and location portion and produced, has further improved sealed waterproof performance to the problem of connecting between first connector body and the second connector body and taking place to become flexible has been avoided.

(2) Through the tip fixedly connected with trip at the jack catch, the cross sectional shape of this trip is the toper, and the draw-in groove of two symmetries is seted up to joint portion, the size of draw-in groove with the size phase-match of trip can realize being connected of second connector body and first connector body through this kind of design, and simultaneously, the second connector body includes location portion, joint portion and fixed part triplex design and connects as an organic whole, and the operating personnel of being convenient for uses, simple structure, is convenient for install and dismantle.

Drawings

Fig. 1 is an overall structure diagram of a three-way MC4 joint for photovoltaic of the present invention;

fig. 2 is a structural diagram of a first connector body of the photovoltaic three-way MC4 connector of the present invention;

fig. 3 is a structural diagram of a second connector body of the photovoltaic three-way MC4 connector of the present invention;

fig. 4 is a connection structure diagram of a first connector and a second connector of the photovoltaic three-way MC4 connector of the present invention;

fig. 5 is a cross-sectional view of a second sleeve of the three-way photovoltaic MC4 joint of the present invention;

in the figure: 1-a three-way joint body; 2-a first connector; 21-a first locking nut; 22-a first connector body; 23-a first sleeve; 24-a jaw; 241-hook; 3-a second connector; 31-a second lock nut; 32-a second connector body; 321-a positioning part; 322-a clamping part; 323-a stationary part; 33-a second sleeve; 4-a card slot; 5-protrusion; 6-through holes; 7-positioning grooves; 8-hand print.

Detailed Description

For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.

As shown in fig. 1 to 5, the utility model provides a three-way MC4 joint for photovoltaic use, which comprises a three-way joint body 1, a first joint 2 arranged at one end of the three-way joint body 1, and at least two second joints 3 arranged at the other end of the three-way joint body 1, the first connector 2 includes a first lock nut 21 and a first connector body 22, the first connector body 22 is screwed with the first lock nut 21, the second connector 3 comprises a second locking nut 31 and a second connector body 32, the second connector body 32 is in threaded connection with the second locking nut 31, a first sleeve 23 is fixedly arranged in the first connector body 22 in a penetrating way, two symmetrical clamping jaws 24 are fixedly arranged in the first connector body 22, the second connector body 32 is connected with the first connector body 22 by the claws 24. The second connector body 32 can be conveniently connected with the first connector body 22 by arranging the claws 24, and the arrangement of the first lock nut 21 and the second lock nut 31 is respectively beneficial to the connection of the first connector body 22 and the second connector body 32 to the three-way connector body 1.

Further, second connector body 32 sets up to hollow cavity, the cavity includes location portion 321, joint portion 322 and fixed part 323, second sleeve pipe 33 is worn to be equipped with in the inside fixed of cavity, location portion 321 joint portion 322 with fixed part 323 integration is connected, just the radial dimension of location portion 321 is greater than the radial dimension of joint portion 322, the radial dimension of location portion 321 with the radial dimension of fixed part 323 is equal, the internal diameter size of second sleeve pipe 33 with the external diameter size of first sleeve pipe 23 equals. Through designing location portion 321, joint portion 322 and fixed part 323 as the integration and connecting, simple structure, the operating personnel of being convenient for install and dismantle.

Further, the end of the jaw 24 is fixedly connected with a hook 241, the cross-sectional shape of the hook 241 is conical, two symmetrical clamping grooves 4 are formed in the clamping portion 322, and the size of each clamping groove 4 is matched with the size of the hook 241. The cross section of the hook 241 is designed to be conical, so that the two hooks 241 are close to the positioning portion 321 under the extrusion force of the positioning portion 321 until the hooks 241 abut against the outer wall of the second sleeve 33, the hooks 241 are exposed through the slots 4, the positioning portion 321 is hooked and clamped at the moment, and the first connector body 22 and the second connector body 32 are installed.

Further, two symmetrical protrusions 5 are fixedly arranged on the outer edge of the first sleeve 23, each protrusion 5 is arranged opposite to the position of the hook 241, two through holes 6 are formed in the wall surface of the second sleeve 33 in a penetrating mode, and the size of each through hole 6 is matched with that of each protrusion 5. The mutual matching between the through hole 6 and the protrusion 5 greatly improves the connection stability between the first sleeve 23 and the second sleeve 33.

Further, the inner wall of the second sleeve 33 is symmetrically provided with two positioning grooves 7, and the width dimension of the positioning groove 7 in the pair is matched with the dimension of the protrusion 5. The locating slot 7 mainly plays a role in locating the protrusion 5, so that the protrusion 5 can smoothly slide into the through hole 6, and the first sleeve 23 and the second sleeve 33 are connected more tightly.

Further, hand threads 8 are uniformly arranged on the outer edges of the first locking nut 21 and the second locking nut 31, and the arranged hand threads 8 mainly play a role in skid resistance.

The utility model discloses a theory of operation and working process as follows: when the connector is used, an operator aligns the first sleeve 23 and sends the first sleeve into the second sleeve 33, the protrusion 5 reaches the through hole 6 through the positioning slot 7 to realize the connection between the first sleeve 23 and the second sleeve 33, meanwhile, the end parts of the claws 24 are fixedly connected with the hooks 241, and the hooks 241 are designed to be conical in cross section shape, when the two claws 24 are close to the positioning portion 321, the hooks 241 are close to the positioning portion 321 under the extrusion force of the positioning portion 321, so that the hooks 241 are abutted against the outer wall of the second sleeve 33, because the claws 24 have elastic restoring force, the hooks 241 are exposed and hook the positioning portion 321 to clamp the positioning portion 321 when passing through the clamping slot 4, the installation between the first connector body 22 and the second connector body 32 is realized, when the connector needs to be disassembled, the operator only needs to press the hooks 241, at the moment, the hooks 241 extrude the protrusion 5 to be separated from the through hole 6, and further the first sleeve 23 is pulled out of the second sleeve 33 along the positioning, the clamping jaw 24 is sequentially separated from the clamping part 322 and the positioning part 321 to finish the disassembly of the first connector body 22 and the second connector body 32, the positioning effect on the protrusion 5 is mainly played through the arranged positioning groove 7, the protrusion 5 can conveniently and smoothly slide into the through hole 6, the connection between the first sleeve 23 and the second sleeve 33 can be tighter through the mutual matching between the positioning groove 7 and the protrusion 5, the problem that the connection between the clamping hook 241 and the positioning part 321 is loosened after the use time is prolonged is solved, the sealing and waterproof performance is further improved, the problem that the connection between the first connector body 22 and the second connector body 32 is loosened is avoided, the assembly is connected with two different devices, the requirements of device transformation, direct current power supply and other transformation are met, the problem that the common photovoltaic MC4 connector is connected in a one-to-one manner is solved, more than two butt connectors are split in a parallel manner, satisfy many equipment connection that MC4 connects, the design is dustproof, and is sealed waterproof, does not influence equipment connection and normal use under 1M deep water.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. Tee bend MC4 connects for photovoltaic, its characterized in that, including three way connection body (1), set up in first connector (2) of three way connection body one end and set up in at least two second connector (3) of three way connection body (1) other end, first connector (2) include first lock nut (21) and first connector body (22), first connector body (22) with first lock nut (21) threaded connection, second connector (3) include second lock nut (31) and second connector body (32), second connector body (32) with second lock nut (31) threaded connection, first sleeve pipe (23) are worn to be equipped with to the inside fixed of first connector body (22), first connector body (22) inside fixed be provided with two symmetrical jack catchs (24), the second connector body (32) is connected with the first connector body (22) in a clamping mode through the clamping claws (24).

2. The three-way MC4 joint for photovoltaic use according to claim 1, wherein the second connector body (32) is provided as a hollow cavity, the cavity comprises a positioning portion (321), a clamping portion (322) and a fixing portion (323), a second sleeve (33) is fixedly arranged in the cavity in a penetrating manner, the positioning portion (321), the clamping portion (322) and the fixing portion (323) are integrally connected, the radial dimension of the positioning portion (321) is larger than that of the clamping portion (322), the radial dimension of the positioning portion (321) is equal to that of the fixing portion (323), and the inner diameter of the second sleeve (33) is equal to the outer diameter of the first sleeve (23).

3. The photovoltaic tee joint MC4 according to claim 2, wherein a hook (241) is fixedly connected to the end of the jaw (24), the cross-sectional shape of the hook (241) is conical, two symmetrical slots (4) are formed in the clamping portion (322), and the size of each slot (4) is matched with the size of the hook (241).

4. The photovoltaic three-way MC4 joint according to claim 3, wherein the outer edge of the first sleeve (23) is fixedly provided with two symmetrical protrusions (5), each protrusion (5) is arranged opposite to the position of the hook (241), the wall surface of the second sleeve (33) is provided with two through holes (6) in a penetrating manner, and the size of each through hole (6) is matched with the size of each protrusion (5).

5. The photovoltaic three-way MC4 joint according to claim 4, wherein the inner wall of the second sleeve (33) is symmetrically provided with two positioning grooves (7), and the width dimension of the positioning grooves (7) in the pair is matched with the dimension of the protrusion (5).

6. The photovoltaic three-way MC4 joint according to claim 1, wherein the outer edges of the first locking nut (21) and the second locking nut (31) are uniformly provided with handprints (8).