CN219144518U

CN219144518U - Aluminum core photovoltaic cable conductor connecting device

Info

Publication number: CN219144518U
Application number: CN202223016462.1U
Authority: CN
Inventors: 季开元; 刘积玲
Original assignee: Kunshan Byson Electronics Co ltd
Current assignee: Kunshan Byson Electronics Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-06-06
Anticipated expiration: 2032-11-14

Abstract

The utility model provides an aluminum core photovoltaic cable conductor connecting device, which comprises: a connecting pipe sleeved on the conductor; the grooved conical sleeve is arranged between the inner wall of one end of the connecting pipe and the conductor; the outer wall of the same side of the connecting pipe as the conical sleeve with the groove is provided with a locking cap for fastening the installation of the conical sleeve with the groove between the connecting pipe and the conductor; an external terminal is arranged at one end of the connecting pipe away from the conical sleeve with the groove. Specifically, a connecting pipe is arranged, and one end of the connecting pipe, which is sleeved on the conductor and used for connection, is sleeved on the connecting pipe. According to the utility model, the connecting pipe is sleeved on the conductor by arranging the connecting pipe, and then the conical sleeve with the groove is pushed between the connecting pipe and the conductor. The fastening cap is arranged on the outer wall of one end of the connecting pipe, which is on the same side with the grooved conical sleeve, and the grooved conical sleeve, the conductor and the connecting pipe are tightly pressed by the fastening cap. And an external terminal is arranged at the other end of the connecting pipe, and the cable is connected through the external terminal.

Description

Aluminum core photovoltaic cable conductor connecting device

Technical Field

The specification belongs to the technical field, and especially relates to an aluminum core photovoltaic cable conductor connecting device.

Background

In the prior art, copper clips are generally adopted for conductor connection of photovoltaic cables at home and abroad. Namely, the copper clip is sleeved on the insulated multi-strand copper conductor, and is clamped twice by a clamp to complete the connection of the clip and the conductor, and the other end of the clip is cylindrical or shaped as a tape Kong Bianfang and can be respectively connected with a junction box (a connector) or a junction box.

With the continuous high international copper price, aluminum core photovoltaic cables are increasingly used. There are a number of problems associated with conductor connections such as replacing copper clips with aluminum or aluminum alloy clips. Because the aluminum wires of the multi-strand aluminum stranded wires (particularly the specification of the aluminum stranded wires of the photovoltaic cable is generally smaller than 35 square millimeters) are very thin, the conductor is soft in material, the conductor can be damaged by clamping and pressing, so that the strength of a pressing joint is reduced, and the conductor can be broken when serious; meanwhile, the creep property of aluminum and aluminum alloy is strong, the connection looseness caused by creep is easy to occur due to the fact that aluminum or aluminum alloy clips are used for compression joint for a long time, the current flow of a cable is affected, and even the risk of burning or fire is caused. If a welding technology is adopted, the welding reliability of the aluminum conductor and the aluminum or aluminum alloy connecting device is poor, the difficulty is high, the operation on the construction site is complex, and the feasibility is basically not realized.

In view of the above problems, no effective solution has been proposed at present.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present utility model and is presented for the convenience of understanding by those skilled in the art. The above-mentioned technical solutions are not to be considered as known to those skilled in the art merely because these solutions are described in the background section of the utility model

Disclosure of Invention

The specification aims to provide an aluminum core photovoltaic cable conductor connecting device so as to solve the problem of conductor connection.

The specification provides an aluminium core photovoltaic cable conductor connecting device, includes:

a connecting pipe sleeved on the conductor;

the grooved conical sleeve is arranged between the inner wall of one end of the connecting pipe and the conductor;

the outer wall of the connecting pipe, which is on the same side as the grooved conical sleeve, is provided with a locking cap for fastening the installation of the grooved conical sleeve between the connecting pipe and the conductor;

and an external terminal is arranged at one end of the connecting pipe, which is far away from the conical sleeve with the groove.

Preferably, the connecting tube, the grooved conical sleeve and the confinement cap are made of aluminum.

Preferably, the external terminal is made of brass or red copper.

Preferably, the external terminal is connected with the connecting pipe through friction welding.

Preferably, the external terminal is cylindrical or flat with holes.

Preferably, the fastening cap is mounted at one end of the connection tube by screw threads.

Preferably, the central axis of the connecting pipe coincides with the central axes of the grooved conical sleeve, the fastening cap and the external terminal, and coincides with the central axis of the conductor along the extending direction of the conductor.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the connecting pipe is sleeved on the conductor by arranging the connecting pipe, and then the conical sleeve with the groove is pushed between the connecting pipe and the conductor. The fastening cap is arranged on the outer wall of one end of the connecting pipe, which is on the same side with the grooved conical sleeve, and the grooved conical sleeve, the conductor and the connecting pipe are tightly pressed by the fastening cap. And an external terminal is arranged at the other end of the connecting pipe, and the cable is connected through the external terminal.

2. According to the utility model, the external terminal is fixedly connected with the connecting pipe through friction welding, so that the connection of the external terminal is more stable, and the operation difficulty and the processing cost are reduced.

3. The utility model also enables the device to be applied to more complex situations by arranging the external terminal to be cylindrical or flat with holes according to actual operation conditions.

Drawings

In order to more clearly illustrate the embodiments of the present description or the technical solutions in 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 of the embodiments described in the present description, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an overall structural diagram of an aluminum core photovoltaic cable conductor connection device provided in an embodiment of the present disclosure.

In the figure: 1. a connecting pipe; 2. a tapered sleeve with grooves; 3. a confinement cap; 4. and an external terminal.

Detailed Description

In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "middle", "lower", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in terms of its overall structure.

Referring to fig. 1, an embodiment of the present application provides an aluminum core photovoltaic cable conductor connection device, including:

a connecting pipe 1 sleeved on the conductor;

the belt groove conical sleeve 2 is arranged between the inner wall of one end of the connecting pipe 1 and the conductor;

the outer wall of the connecting pipe 1, which is on the same side as the grooved conical sleeve 2, is provided with a locking cap 3 for fastening the installation of the grooved conical sleeve 2 between the connecting pipe 1 and a conductor;

an external terminal 4 is arranged at one end of the connecting pipe 1 far away from the conical sleeve 2 with the groove.

Specifically, a connecting pipe 1 is provided, and one end of the connecting pipe 1, which is used for connection, is sleeved on the conductor. For the arrangement of the connection tube 1, a clearance is provided between the connection tube 1 and the conductor. If the connecting pipe 1 is directly pressed with the conductor, the surface of the conductor can be scratched in the process of installing and dismantling the connecting pipe 1, and meanwhile, the situation that the conductor is deformed by pressing or even broken by pressing exists in the process of pressing the connecting pipe, so that the difficulty in installing is relatively high. The insertion of the grooved taper sleeve 2 into this clearance gap, it is noted that the connection tube 1 and the conductor are not completely filled after the insertion of the grooved taper sleeve 2 into this clearance gap. As can be seen from fig. 1, the maximum diameter of the grooved cone sleeve 2 can be set smaller than the diameter of the connecting tube 1, and the grooved cone sleeve 2 has one large-diameter end and one relatively small-diameter end. The end with the relatively small diameter is pushed into the clearance first during the implementation.

And a locking cap 3 is arranged on the outer wall of the connecting pipe 1 on the same side with the conical sleeve 2 with the groove. The locking cap 3 is mounted at one end of the connection tube 1, and preferably, the locking cap 3 is mounted at one end of the connection tube 1 by screw threads. In another embodiment, there is a slight gap between the grooved taper sleeve 2 and the conductor and the connection tube 1 to ensure that the conductor is not deformed by compression or scratched during installation. And then the fastening cap 3 is used for fastening the fastening cap. The specific process is that the locking cap 3 is sleeved at one end of the connecting pipe 1 and can be connected through threads or can be installed through a buckle. The locking cap 3 is mounted such that the gap between the slotted conical sleeve 2 and the conductor and the connecting tube 1 is compressed. This indirect compression by the locking cap 3 ensures that the conductor is not deformed by compression and is not damaged. That is, the fastening cap 3 is pressed by applying force to the connection tube 1, so that the connection tube 1 is tightened toward, and the structure thereof is further tightened.

An external terminal 4 is arranged at the other end of the connecting pipe 1. The external terminals 4 are used to protect the connection of the conductors. Specifically, in the actual operation of the person skilled in the art, the external terminal 4 is fixedly connected to one end of the connecting pipe 1, so that the connection position of the cable can be always in a fixed state in the operation process, and further, the conductor connection work can be more convenient and faster. Preferably, the fixed connection of the external terminals 4 is achieved by friction welding. The precision of the friction welding processing workpiece is high, and the connection part of the external terminal 3 and the connecting pipe 1 in the connecting device can be welded more carefully. The error is small, and the connection of the processed workpieces is tighter. And the friction welding has low power, can save electric energy and greatly reduces the processing cost. In addition, the friction welding process environment is more sanitary, and no sparks and electric arcs and some harmful gases exist.

It will be appreciated that the connection process of the external connection terminal 4 is a relatively small workpiece, so friction welding is selected for the process of processing, and a more firm connection mechanism can be processed.

In summary, the connecting tube 1 is sleeved on the outer wall of the conductor, a reserved gap is provided between the connecting tube and the connecting tube, and the tapered sleeve 2 with the groove is pushed into the reserved gap along the extending direction of the conductor. The structure between the grooved taper sleeve 2 and the conductor and the connection pipe 1 and the tight contact is not achieved at this time. And a locking cap 3 is arranged on the outer wall of one end of the connecting pipe 1 in a threaded or fastening mode. The fastening cap 3 is installed by means of threads or buckles, so that the fine gap between the conical sleeve 2 with the groove and the conductor and the connecting pipe 1 can be gradually compressed, and the integral tight effect of the structure is achieved. Moreover, such indirect compaction does not damage the conductor. And the external terminal 4 is arranged through friction welding, so that the structure of the connecting device is more complete and the use is more convenient.

Preferably, in the manufacturing process, the connection tube 1, the tapered sleeve 2 with grooves, and the locking cap 3 are generally manufactured by using aluminum, aluminum alloy, or the like. The use of aluminum and aluminum alloys can reduce manufacturing costs while meeting the needs of use.

Preferably, the external connection terminal 4 is made of brass or copper. The external terminals 4 made of brass and copper can have a certain hardness with respect to the conductors. This makes the relative position of the external terminal 4 more stable and the connection of the conductors more convenient when the device is used by a person skilled in the art.

In practical use, many working conditions may be encountered, which makes the device necessary to cope with a plurality of conditions. Preferably, the external connection terminal 4 is designed as a cylinder or a perforated flat. In general, the device is installed in a location where sufficient space is reserved, and most of the space is cylindrical. In some special cases, the external terminal 4 may be provided in a flat shape with a circular hole. This shape can be adapted to the requirements of various operating situations. For many other uses, the external connection terminal 4 is designed into many shapes, and mass production is performed.

Because most conductors are made of aluminum and aluminum alloys, the hardness of aluminum core photovoltaics is low. The deformation of the optical cable conductor is easily caused when the equipment is used for working, and preferably, the central axis of the connecting pipe 1 coincides with the central axes of the conical sleeve 2 with the grooves, the locking cap 3 and the external terminal 4, and the central axes of the connecting pipe 1 and the conductor along the extending direction are coincident. Specifically, the axes of the connecting pipe 1, the tapered sleeve with grooves 2, the fastening cap 3 and the external terminal 4 extending along the direction of the conductor are all coincident, and are coincident with the central axis of the conductor along the extending direction thereof. The arrangement makes the device not deform the conductor due to the application of force when in use.

The central axis of the connecting pipe 1, the conical sleeve 2 with the groove, the locking cap 3 and the external terminal 4 coincides with the central axis of the conductor along the extending direction. Such a configuration makes the connection tube 1, the tapered sleeve 2 with grooves, the locking cap 3, and the external terminal 4 more uniform when the conductor is biased or mounted. The conductor will retain its original shape when subjected to a uniform force along its circumference.

Although various specific embodiments are described in this application, the application is not limited to the details of the industry standard or examples, which are intended to indicate that the same, equivalent or similar embodiments or variations as described in the above examples may be achieved by the use of custom or modified embodiments. Examples of ways of data acquisition, processing, output, judgment, etc. using these modifications or variations are still within the scope of alternative embodiments of the present application.

Although the present application has been described by way of example, one of ordinary skill in the art will recognize that there are many variations and modifications to the present application without departing from the spirit of the present application, and it is intended that the appended embodiments include such variations and modifications without departing from the application.

Claims

1. An aluminum core photovoltaic cable conductor connection device, comprising:

a connecting pipe sleeved on the conductor;

the outer walls of the same sides of the connecting pipe and the grooved taper sleeve are provided with a locking cap for fastening the installation of the grooved taper sleeve between the connecting pipe and the conductor;

2. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the connection tube, the slotted conical sleeve and the confinement cap are made of aluminum.

3. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the external terminal is made of brass or copper.

4. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the external terminal is connected to the connection pipe by friction welding.

5. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the external terminal is cylindrical or flat with holes.

6. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the locking cap is threadably mounted to one end of the connection tube.

7. The aluminum core photovoltaic cable conductor connection device of claim 1, wherein the connecting pipe central axis coincides with the central axes of the grooved taper sleeve, the confinement cap and the external terminal, and coincides with the central axis of the conductor in the extending direction thereof.