CN211181738U

CN211181738U - Cable protective sleeve and cable

Info

Publication number: CN211181738U
Application number: CN202020075487.0U
Authority: CN
Inventors: 马飞; 李素霞; 温艳飞; 王永才
Original assignee: Dongguan Luxshare Technology Co Ltd
Current assignee: Dongguan Luxshare Technology Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-08-04
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a cable protection sleeve and a cable, which belong to the technical field of cable protection, wherein the cable protection sleeve comprises a sizing sleeve, the sizing sleeve is sleeved outside a connecting part of a cable core, the sizing sleeve is provided with a first end and a second end which are opposite, the size of the first end is larger than that of the second end, and the second end is in sealing contact with the cable core; an insulating waterproof block filled in a gap between the connecting portion and the sizing sleeve and in sealing contact with the connecting portion and the sizing sleeve, respectively; and the first protective film is used for wrapping the sizing sleeve and is connected with other parts of the cable core so as to fix the sizing sleeve on the cable core, wherein the other parts are the parts of the cable core except the connecting part. The utility model provides a cable protective sheath and cable can improve the leakproofness between sizing sleeve and the coupling part, and have better water-proof effects.

Description

Cable protective sleeve and cable

Technical Field

The utility model relates to a cable protection technical field especially relates to a cable protection sleeve and cable.

Background

The photovoltaic cable is used to transmit the electric energy generated by the photovoltaic cell to the storage device, and therefore, the water resistance of the photovoltaic cable is particularly important.

Wherein, the hookup location of many photovoltaic cables is difficult sealed, and if the junction of three photovoltaic cables is Y shape, the sealed more difficult of this junction, among the prior art, generally at this junction overcoat establish the water jacket of preventing, the shape of waterproof cover is similar with the shape of this junction, and waterproof cover contacts with three photovoltaic cables respectively to sealed above-mentioned junction.

However, the photovoltaic cable generally needs open-air use, leads to waterproof cover to take place rotten more easily under the windy sunshine, and then reduces waterproof cover and photovoltaic cable's leakproofness to lead to waterproof cover's water-proof effects relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable protection cover and cable can improve the leakproofness between sizing sleeve and the coupling part, and has better water-proof effects.

As the conception, the utility model adopts the technical proposal that:

a cable jacket, comprising:

the sizing sleeve is sleeved outside the connecting part of the cable core and is provided with a first end and a second end which are opposite, the size of the first end is larger than that of the second end, and the second end is in sealing contact with the cable core;

an insulating waterproof block filled in a gap between the connecting portion and the sizing sleeve and in sealing contact with the connecting portion and the sizing sleeve, respectively;

and the first protective film is used for wrapping the sizing sleeve and is connected with other parts of the cable core so as to fix the sizing sleeve on the cable core, wherein the other parts are the parts of the cable core except the connecting part.

Optionally, the waterproof block is configured to be in a liquid state when the temperature of the waterproof block is within a first preset temperature range, the waterproof block is in a solid state when the temperature of the waterproof block is within a second preset temperature range, and the sizing sleeve is configured to be in a solid state when the temperature of the sizing sleeve is within the first preset temperature range.

Optionally, the protective film further comprises a second protective film, and the second protective film wraps the first protective film.

Optionally, the protective device further comprises a thermal insulation layer disposed between the first protective film and the second protective film, wherein the thermal insulation layer is configured to allow heat on the first protective film to pass through the thermal insulation layer to the second protective film, and to absorb heat transferred from the second protective film to the thermal insulation layer.

Optionally, the distance between the end of the sizing sleeve and the exposed area in the connecting portion is greater than or equal to a first preset distance.

Optionally, in a first direction, a distance between the inner wall of the sizing sleeve and the connecting portion is greater than a second preset distance, and the first direction is perpendicular to the extending direction of the sizing sleeve.

Optionally, the cross-sectional shape of the sizing sleeve is square, circular or elliptical.

Optionally, the waterproof block is made of epoxy resin, and the sizing sleeve is made of plastic.

A cable comprises a cable core and the cable protective sleeve, wherein the cable protective sleeve is sleeved outside the cable core.

Optionally, the cable core comprises a first cable core, a second cable core and a third cable core which are connected with each other, the first end of the sizing sleeve is sleeved outside the first cable core and the second cable core, and the second end of the sizing sleeve is sleeved outside the third cable core.

The beneficial effects of the utility model include at least:

in the cable protection sleeve that this embodiment provided, still be equipped with the sizing sleeve in first protection film and be located the waterproof piece of sizing sleeve, this waterproof piece can fill the gap between connecting portion and the sizing sleeve to reduce the outer water of sizing sleeve and get into the probability of connecting portion, improved the leakproofness between sizing sleeve and the connecting portion, and then improved cable protection sleeve's water-proof effects.

Moreover, the cable protective sleeve provided by the embodiment has the advantages of simple structure, easiness in manufacturing and low cost.

Drawings

Fig. 1 is a front view of a cable protective sheath according to an embodiment of the present invention;

fig. 2 is a sectional view taken along a line a-a of fig. 1 according to an embodiment of the present invention;

fig. 3 is a side view of a cable protective sheath provided by an embodiment of the present invention;

fig. 4 is a B-B sectional view of the embodiment of the present invention shown in fig. 3;

fig. 5 is a schematic view of an exploded structure of a cable protection sleeve and a cable core provided in an embodiment of the present invention;

fig. 6 is a schematic view of an exploded structure of the cable protection sleeve and the cable core provided by the embodiment of the utility model.

In the figure:

1. shaping sleeves; 11. a first end; 12. a second end; 2. a waterproof block; 3. a first protective film; 4. a second protective film; 10. a cable protective sheath; 201. a first cable core; 202. a second cable core; 203. a third cable core; 204. an exposed area.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

This implementation provides a cable protective sheath, can improve the leakproofness to the cable core, and then improves water-proof effects.

As shown in fig. 1 to 6, the cable protective sheath includes a sizing sheath 1, an insulating waterproof block 2 and a first protective film 3.

The shaping sleeve 1 is sleeved outside the connecting part of the cable core, the shaping sleeve 1 is provided with a first end 11 and a second end 12 which are opposite, the size of the first end 11 is larger than that of the second end 12, so that the shaping sleeve is used for connecting the connecting part when a plurality of cable cores are connected, and the second end 12 is in sealing contact with the cable core. The waterproof block 2 is positioned between the connecting portion and the molding sleeve 1, and the waterproof block 2 is filled in a gap between the connecting portion and the molding sleeve 1. The waterproof block 2 is in sealing contact with the connecting part and the sizing sleeve 1 respectively so as to seal the connecting part of the cable core. The first protective film 3 wraps the sizing sleeve 1 and is connected with other parts of the cable core, namely the parts of the cable core except the connecting part, so as to fix the sizing sleeve 1 on the cable core. Illustratively, the connecting portion may include a bare area 204 and a peripheral area, the bare area 204 being an area where the wires are bare when the plurality of cable cores are connected, the peripheral area being in contact with other portions of the cable.

In the cable protection sleeve provided by the embodiment, the first protection film 3 is also internally provided with the sizing sleeve 1 and the waterproof block 2 positioned in the sizing sleeve 1, and the waterproof block 2 can fill the gap between the connecting part and the sizing sleeve 1 so as to reduce the probability that water outside the sizing sleeve 1 enters the connecting part, improve the sealing property between the sizing sleeve 1 and the connecting part and further improve the waterproof effect of the cable protection sleeve.

Alternatively, the waterproof block 2 in this embodiment is configured such that when the temperature of the waterproof block 2 is within the first preset temperature range, the waterproof block 2 can be in a liquid state, and the liquid waterproof block 2 has good fluidity. When the temperature of the waterproof block 2 is within the second preset temperature range, the waterproof block 2 can be in a solid state. And, the sizing sleeve 1 is configured such that when the temperature of the sizing sleeve 1 is within the first preset temperature range, the sizing sleeve 1 can be in a solid state, that is, when the sizing sleeve 1 and the waterproof block 2 are simultaneously in an environment with a temperature within the first preset temperature range, the waterproof block 2 is in a liquid state, and the sizing sleeve 1 is in a solid state, so that the waterproof block 2 in a liquid state can be filled in a gap between the sizing sleeve 1 and the connection portion, at this time, the sizing sleeve 1 is used for sizing the waterproof block 2.

Optionally, referring to fig. 2, the cable protective sheath in this embodiment further includes a second protective film 4. The second protective film 4 is wrapped outside the first protective film 3 to prevent the first protective film 3, the sizing sleeve 2 and the waterproof block 2 from being scratched.

Further, the cable protective sheath also comprises a thermal insulation layer (not shown) arranged between the first protective film 3 and the second protective film 4. The thermal insulation layer is configured to allow heat on the first protective film 3 to be transferred to the second protective film 4 through the thermal insulation layer to radiate heat generated by the cable core to the outside of the cable. And the heat insulation layer is also configured to be capable of absorbing the heat transferred to the heat insulation layer by the second protection film 4, so that when the temperature of the external environment is higher, the heat transferred to the first protection film 3 by the second protection film 4 can be reduced, and the temperature of the connection part of the cable core can be lower.

Optionally, the distance between the end of the sizing sleeve 1 and the exposed area 204 in the connecting portion is greater than or equal to the first preset distance, so as to ensure that the exposed area 204 can be located in the middle of the sizing sleeve 1, that is, to ensure that the cable core insulating layer with a preset length can be located in the sizing sleeve 1, so as to further ensure the air tightness. Preferably, the first predetermined distance is 5 mm.

In this embodiment, the cross-sectional shape of the sizing sleeve 1 may be determined according to the shape of the cable core. For example, the cross-sectional shape of the sizing sleeve 1 may be square, circular, oval, triangular, or the like. In this embodiment, the cross-sectional shape of the sizing sleeve 1 is rectangular (as shown in fig. 5).

In this embodiment, the distance between the inner wall of the jacket 1 and the connecting portion is greater than a second predetermined distance in a first direction, the first direction is perpendicular to the extending direction of the jacket 1, and the extending direction of the jacket 1 is a direction in which the first end 11 points to the second end 12. That is, the distance between the side surface of the waterproof block 2 and the connection portion is greater than the second preset distance to ensure that the waterproof block 2 can completely cover the connection portion. Alternatively, the distances between the side surfaces of the waterproof block 2 and the connecting portions may be all equal to improve the waterproofing uniformity of the waterproof block 2.

Alternatively, in this embodiment, the material of the waterproof block 2 may be an insulating material such as epoxy resin, and the material of the sizing sleeve 1 may be a lower-cost material such as plastic.

The embodiment also provides a cable, which comprises a cable core and the cable protective sleeve. The cable protective sleeve is sleeved outside the cable core.

Further, the cable core is composed of a first cable core 201, a second cable core 202 and a third cable core 203 which are connected with each other, and the first cable core 201, the second cable core 202 and the third cable core 203 are Y-shaped after being connected. Moreover, the first end 11 of the sizing sleeve 1 is sleeved outside the first cable core 201 and the second cable core 202 at the same time, and the second end 12 of the sizing sleeve 1 is sleeved outside the third cable core 203.

In this embodiment, when manufacturing the cable, the first cable core 201, the second cable core 202, and the third cable core 203 are crimped together according to a certain rule through the connection terminal, and then the sizing sleeve 1 is sleeved outside the connection portion of the cable core. The liquid-shaped waterproof block 2 is then injected from the first end 11 of the jacket 1, so that the liquid-shaped waterproof block 2 can fill the gap between the jacket 1 and the connecting portion. In addition, the second end 12 of the sizing sleeve 1 is hermetically connected with the cable core, so that the liquid waterproof block 2 injected into the sizing sleeve 1 can be prevented from flowing out from the second end 12. Then, the temperature of the liquid waterproof block 2 in the sizing sleeve 1 is changed, so that the waterproof block 2 can be formed into a solid state from the liquid state. After the waterproof block 2 is molded, the first protective film 3 and the second protective film 4 are sequentially sheathed to complete the manufacture of the cable.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cable protective cover, comprising:

the shaping sleeve (1) is sleeved outside the connecting part of the cable core, the shaping sleeve (1) is provided with a first end (11) and a second end (12) which are opposite, the size of the first end (11) is larger than that of the second end (12), and the second end (12) is in sealing contact with the cable core;

an insulating waterproof block (2), wherein the waterproof block (2) is filled in a gap between the connecting part and the sizing sleeve (1) and is in sealing contact with the connecting part and the sizing sleeve (1) respectively;

and a first protective film (3) which wraps the sizing sleeve (1) and is connected with other parts of the cable core, wherein the other parts are the parts of the cable core except the connecting part, so that the sizing sleeve (1) is fixed on the cable core.

2. Cable protective sheath according to claim 1, characterized in that the waterproofing block (2) is configured such that the waterproofing block (2) can be in liquid state when the temperature of the waterproofing block (2) is within a first preset temperature range, the waterproofing block (2) can be in solid state when the temperature of the waterproofing block (2) is within a second preset temperature range, the sizing sleeve (1) being configured such that the sizing sleeve (1) can be in solid state when the temperature of the sizing sleeve (1) is within the first preset temperature range.

3. Cable protective sheath according to claim 1 or 2, characterized in that it further comprises a second protective film (4), said second protective film (4) wrapping said first protective film (3).

4. Cable protective sheath according to claim 3, characterized in that it further comprises a thermal insulation layer arranged between the first protective film (3) and the second protective film (4), said thermal insulation layer being configured such that heat on the first protective film (3) can be transferred to the second protective film (4) through the thermal insulation layer, absorbing heat transferred to the thermal insulation layer by the second protective film (4).

5. Cable protective sheath according to claim 1 or 2, characterized in that the end of the sizing sleeve (1) is at a distance greater than or equal to a first preset distance from the bare area in the connection portion.

6. Cable protective sheath according to claim 5, characterized in that the inner wall of the sizing sleeve (1) is at a distance from the connection portion greater than a second predetermined distance in a first direction, which is perpendicular to the extension direction of the sizing sleeve (1).

7. Cable protective sheath according to claim 1 or 2, characterized in that the cross-sectional shape of the sizing sleeve (1) is square, circular or oval.

8. A cable sheath according to claim 1 or 2, characterized in that the material of the flashing block (2) is an epoxy resin material and the material of the sizing sleeve (1) is plastic.

9. A cable, characterized in that, includes cable core and the cable protective sheath of any of claims 1-8, the cable protective sheath is established outside the cable core.

10. The cable according to claim 9, wherein the cable core consists of a first cable core (201), a second cable core (202) and a third cable core (203) which are connected to each other, wherein the first end (11) of the sizing sleeve (1) is sleeved outside the first cable core (201) and the second cable core (202), and the second end (12) of the sizing sleeve (1) is sleeved outside the third cable core (203).