CN217333670U - Cable capable of being hot-melt - Google Patents
Cable capable of being hot-melt Download PDFInfo
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- CN217333670U CN217333670U CN202220234448.XU CN202220234448U CN217333670U CN 217333670 U CN217333670 U CN 217333670U CN 202220234448 U CN202220234448 U CN 202220234448U CN 217333670 U CN217333670 U CN 217333670U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model provides a can hot melt cable, including lead wire conductor, first layer sheath protective layer and second floor sheath protective layer, the inside fixed lead wire conductor that cup joints of first layer sheath protective layer, and the outside cover of first layer sheath protective layer connects to second floor sheath protective layer. A can heat and melt cable, it can heat and melt cable simple structure, reasonable in design realizes that a plurality of single strands melt through the hot melting point difference value of two-layer sheath protective layer and forms a holistic stranded lead wire, has simplified the hot melt technology moreover, economical and practical, its hot melt method has solved and has assembled into thick line in-process problem at the different quantity of different specifications, and form unified processing technology, and can use mechanical equipment processing completely, avoid appearing damage or mistake, when promoting the quality, greatly improve production efficiency, easily promote.
Description
Technical Field
The utility model belongs to electrical apparatus lead wire design field especially relates to a can heat melt cable.
Background
Bicycle and electric motor car trade, the lead wire between the electrical apparatus is more, and the sub-strand lead wire quantity that every kind of product used is various with length specification, add man-hour, need use pyrocondensation pipe or protective sheath pipe set one "thick line" with a plurality of sub-strand lead wires, when set one thick line, because different products use the lead wire of the different quantity of different length, damage or mistake appear very easily when using pyrocondensation pipe or protective sheath pipe "threading", and can not use machinery, can only artifical threading one by one, efficiency is extremely low. The invention aims to solve the problems that a uniform processing technology is formed in the process of assembling different quantities of different specifications into thick lines, mechanical equipment can be completely used for processing, the quality is improved, and meanwhile, the production efficiency is greatly improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a hot-melt cable, so as to overcome the shortcomings of the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a cable can melt by heat, includes lead wire conductor, first layer sheath protective layer and second floor sheath protective layer, first layer sheath protective layer, second floor sheath protective layer are the hollow cylinder structure, the lead wire conductor is the cylinder structure, the inside fixed lead wire conductor that cup joints of first layer sheath protective layer, the outside cover of first layer sheath protective layer connects to second floor sheath protective layer.
Further, the lead conductor is of a single-core structure.
Further, the lead conductor is of a multi-core structure.
Further, a lubricating material is arranged between the first layer of protective sheath layer and the second layer of protective sheath layer.
Further, the lubricating material is made of talc powder.
Furthermore, the first layer of sheath protection layer and the second layer of sheath protection layer are both made of flexible materials, and the melting point value of the first layer of sheath protection layer is larger than that of the second layer of sheath protection layer.
Further, the softening temperature of the first layer of protective sheath layer is more than 210 ℃, and the melting point temperature of the first layer of protective sheath layer is more than 240 ℃.
Further, the melting point temperature of the second protective layer is less than 210 ℃.
Compared with the prior art, the hot-melt cable of the utility model has the following advantages:
(1) a can heat melt cable, simple structure, reasonable in design realizes through the hot melting point difference value of two-layer sheath protective layer that a plurality of single strands melt and form a holistic stranded lead wire, has simplified hot melt technology moreover, economical and practical.
(2) A can heat melt cable, solved and assembled into thick line in-process problem at the different quantity of different specifications, and form unified processing technology, and can use mechanical equipment processing completely, avoid appearing damage or mistake, when promoting the quality, greatly improve production efficiency, easily promote.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a cross-sectional view of a hot-melt cable according to an embodiment of the present invention;
fig. 2 is a schematic view of an overall structure of a hot-melt cable according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a hot melting step of a 4-strand hot-melt cable according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a hot-melting installation of a 4-strand hot-melt cable according to an embodiment of the present invention.
Description of reference numerals:
101. a lead conductor; 102. a first protective sheath layer; 103. two protective layers of sheath.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, a hot-melt cable includes a lead conductor 101, a first sheath protection layer 102, and a second sheath protection layer 103, where the first sheath protection layer 102 and the second sheath protection layer 103 are both hollow cylindrical structures, the lead conductor 101 is a cylindrical structure, the lead conductor 101 may be a single-core structure or a multi-core structure, the lead conductor 101 is fixedly sleeved inside the first sheath protection layer 102, the first sheath protection layer 102 is externally sleeved to the second sheath protection layer 103, and a lubricating material is disposed between the first sheath protection layer 102 and the second sheath protection layer 103. The lubricating material is talc powder. This can heat melt cable simple structure, reasonable in design realizes through the hot melting point difference value of two-layer sheath protective layer that a plurality of single strands melt and form a holistic stranded lead wire, has simplified the hot melt technology moreover, economical and practical.
In this embodiment, as shown in FIGS. 1-2: 101 is a lead conductor generally made of copper; 102 is a first protective jacket layer of a conductor; 103 is a second jacket protection layer for the conductor.
The places inconsistent with the common wire rods are: 1. the single-stranded lead wire is provided with two side sheath protective layers; 2. the first protective layer 102 has a high thermal melting point, generally above 240 ℃, and the second protective layer 103 has a relatively low thermal melting point, below 180 ℃. Generally, a lubricating material such as talc powder should be provided between the first sheath protecting layer 102 and the second sheath protecting layer 103 to increase the flexibility of the finished wire.
The purpose of this design is to melt the second protective sheath layer 103 at a relatively low temperature, such as 180 c, when a plurality of such double-sheathed single-strand wires are placed together, the first protective sheath layer 102 does not melt because the temperature does not reach its melting point of 240 c, and the multiple-strand wires are bonded to each other after the second protective sheath layer 103 melts and are cooled and formed in a forming device to form an integral multiple-strand wire. As shown in fig. 3 below, 4 single-strand core wires are fused together to form a thick wire.
The first layer of sheath protection layer 102 and the second layer of sheath protection layer 103 are both made of flexible materials, and the melting point value of the first layer of sheath protection layer 102 is larger than that of the second layer of sheath protection layer 103. The softening temperature of the first protective layer 102 is more than 210 ℃, and the melting point temperature of the first protective layer 102 is more than 240 ℃. The melting point temperature of the second protective sheath layer 103 is less than 210 ℃.
In the present embodiment, the two parameters of 240 ℃ and 180 ℃ are only examples, and mainly indicate that different sheath materials with larger differences in melting points are expressed, and the melting point of the material of the second sheath protection layer 103 is much lower.
The first sheath protection layer 102 is made of a flexible material with a high melting point, the softening temperature is higher than 210 ℃, the melting point temperature is higher than 240 ℃, and a typical material is a polytetrafluoroethylene material.
The second protective layer 103 should be made of a flexible material with a low melting point, the melting point temperature should be less than 210 ℃, and a typical material is a Polyurethane (PU) material. The larger the difference between the melting points of the two is, the more beneficial the multi-strand hot melting molding is.
A hot melting method of a hot-melting cable comprises the following steps:
s1, designing the shapes of two heating blocks of the hot melting equipment according to the number of core wire strands to be heated;
s2, heating the heating block, and controlling the range value of the temperature parameter according to the number of core wire strands to be heated;
s3, placing the core wire to be heated into a heating groove of a heating block, and reserving a distance (the distance length can be determined according to actual conditions, but can not influence the grasping and positioning of workers or equipment) at two ends for grasping and positioning the workers or the equipment;
s4, pressing the two heating blocks, giving a pretightening force, controlling the pressure value range of the pretightening force according to the number of strands of the core wires to be heated, wherein the pressure value range is determined according to the number of the core wires to be heated actually, and heating the core wires to be heated by using the heating rod;
s5, when the temperature of the heating block reaches the softening temperature point of the second layer of sheath protection layer 103, starting to pressurize the heating block;
s6, continuously heating until the temperature reaches the melting point of the second layer of sheath protection layer 103, stopping heating, and maintaining the temperature and pressure;
and S7, maintaining the pressure, taking down the lead and the heating block for cooling, and opening the heating block to take out the finished product line when the temperature is below a set temperature threshold. The set temperature threshold in step S7 is 100 ℃. The hot melting method of the hot-melting cable solves the problem that different quantities of different specifications are integrated into a thick wire in the process, forms a uniform processing technology, can completely use mechanical equipment for processing, avoids damage or errors, greatly improves the production efficiency while improving the quality, and is easy to popularize.
Example 1
Taking a four-core example, i.e. using 4 individual strands of the above-mentioned core, heat-fusing into one multi-core wire:
a. two heating blocks (the heating blocks are parts in the existing hot melting equipment), the middle of the two heating blocks is provided with a set shape, and the heating blocks are designed according to a circle in the example;
b. firstly, the existing electric heating rod is used for heating pretreatment of a heating block, and the temperature is controlled to be between +80 ℃ and +100 ℃;
c. 4 single-stranded core wires are placed in a heating groove of a heating block, and a distance is reserved at two ends for grasping and positioning;
d. at the moment, the two heating blocks are pressed, a certain pretightening force is given, the pressure is controlled to be about 0.5Kg, and meanwhile, a heating rod is used for heating and raising the temperature;
e. when the temperature of the heating block reaches the softening temperature point of the second layer of sheath protection layer 103, the temperature is generally between +110 ℃ and +120 ℃, and the pressure is started to be 5 Kg;
f. continuing heating until the temperature reaches the melting point of the second protective layer 103, for example, 180 ℃, stopping heating, and maintaining the temperature and pressure for a period of time, for example, 5 s;
g. after pressure maintaining, the lead and the heating block can be taken down and cooled, and when the temperature reaches below 100 ℃, the heating block can be opened to take out the finished product line.
Example 2
Taking an eight-core example, i.e. using 8 single strands of the above-mentioned core, heat-fusing into one multi-core wire:
a. the middle of the two heating blocks is provided with a set shape, for example, the two heating blocks are designed in a circular shape;
b. firstly, an electric heating rod is used for heating a heating block for pretreatment, and the temperature is controlled to be +90 ℃ to +110 ℃;
c. putting the 8 single-stranded core wires into a heating groove of a heating block, reserving a distance at two ends for grasping and positioning;
d. at the moment, the two heating blocks are pressed, a certain pretightening force is given, the pressure is controlled to be about 0.75 Kg-1.25 Kg, the number of the single-stranded core wires is increased, in order to ensure that the temperature is fully diffused to each core wire, the preheating can be kept for a period of time, such as 5s, and then a heating rod is used for heating and heating;
e. when the temperature of the heating block reaches the softening temperature point of the second layer of sheath protection layer 103, the temperature is generally between +120 ℃ and +130 ℃, and the pressure is started to be 7 Kg;
f. when the temperature is continuously heated to reach the melting point of the second protective layer 103, for example, 180 ℃, the heating is stopped and the temperature and pressure are maintained for a period of time, for example, 20 s;
g. after pressure maintaining, the lead and the heating block can be taken down and cooled, and when the temperature reaches below 100 ℃, the heating block can be opened to take out the finished product line.
The hot melting method can fuse the single-stranded core wires with different quantities into an integral finished wire, and when the single-stranded core wires with different quantities are fused into an integral finished wire, parameters which change at each stage in the hot melting process are as follows:
i, the shape and the size of a heating groove in the heating block;
ii, the time used for the heating pretreatment to reach the target temperature;
iii, pre-tightening force;
iv, the time for the heating block to reach the softening temperature point;
v, heating by the heating block for the time required for reaching the melting point of the second protective layer 103, and keeping the pressure and the pressure for the time after reaching the target temperature;
vi, the time it takes to cool down if possible.
The parameter changes are determined by the number of core wire strands which need to be heated actually and are not fixed range values. And the hot melting method of the hot-melting cable is not limited to 4 strands and 8 strands for the number of strands of the core wire, and can be multi-strand.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A hot-melt cable, comprising: the lead wire comprises a lead wire conductor (101), a first layer of sheath protection layer (102) and a second layer of sheath protection layer (103), wherein the first layer of sheath protection layer (102) and the second layer of sheath protection layer (103) are both of hollow cylindrical structures, the lead wire conductor (101) is of a cylindrical structure, the lead wire conductor (101) is fixedly sleeved inside the first layer of sheath protection layer (102), and the outer part of the first layer of sheath protection layer (102) is sleeved to the second layer of sheath protection layer (103);
the first layer of sheath protection layer (102) and the second layer of sheath protection layer (103) are both made of flexible materials, and the melting point value of the first layer of sheath protection layer (102) is larger than that of the second layer of sheath protection layer (103).
2. A hot-melt cable according to claim 1, wherein: the lead conductor (101) is of a single-core structure.
3. A hot-melt cable according to claim 1, wherein: the lead conductor (101) is of a multi-core structure.
4. A hot-melt cable according to claim 1, wherein: and a lubricating material is arranged between the first layer of protective sheath layer (102) and the second layer of protective sheath layer (103).
5. A hot-melt cable according to claim 4, wherein: the lubricating material is made of talcum powder.
6. A hot-melt cable according to claim 1, wherein: the softening temperature of the first protective layer (102) is more than 210 ℃, and the melting point temperature of the first protective layer (102) is more than 240 ℃.
7. A hot-melt cable according to claim 1, wherein: the melting point temperature of the second protective sheath layer (103) is less than 210 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220234448.XU CN217333670U (en) | 2022-01-27 | 2022-01-27 | Cable capable of being hot-melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220234448.XU CN217333670U (en) | 2022-01-27 | 2022-01-27 | Cable capable of being hot-melt |
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| Publication Number | Publication Date |
|---|---|
| CN217333670U true CN217333670U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220234448.XU Active CN217333670U (en) | 2022-01-27 | 2022-01-27 | Cable capable of being hot-melt |
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| CN (1) | CN217333670U (en) |
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- 2022-01-27 CN CN202220234448.XU patent/CN217333670U/en active Active
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