TW201743657A - The present invention relates to a method for packaging thermal strip with a power terminal - Google Patents

Abstract

The present invention relates to a method for packaging thermal strip with a power terminal. The structure of the thermal strip with power terminal packaged by the method of the present invention includes: a carbon fiber unit which includes a connecting portion; a plastic cover which is shorter than and includes a covering portion to cover the connecting portion; and the power terminal which is sleeved onto the connecting portion of the carbon unit and the covering portion and includes a clamping section to clamp the covering portion, and an electric connecting section to electrically connect the connecting portion of the carbon unit. The power terminal is partially clamped on a thermoplastic portion and electrically connected to the carbon fiber unit to improve manufacturing yield and bending fatigue.

Description

Thermal insulation strip packaging method with power terminal and structure thereof

The invention relates to a heat conducting strip, in particular to a method for packaging a heat conducting strip with a power terminal and a structure thereof.

Thermally conductive strips, which generally have flexibility and lightness, are commonly placed on clothing, knee pads, waist protectors, gloves, insoles, earmuffs or lumbar support to provide a warm wrap for the human body.

Referring to the patent pending method of "Manufacturing Method of Flexible Flat Strip Heater Using Carbon Fiber Filament as Heat Source" provided by the Republic of China Application No. 99109336, the following steps are included: (a) using a carbon fiber yarn; (b) a thermoplastic plastic material disposed on opposite sides of the carbon fiber filament; (c) bonding the thermoplastic plastic material to each other by rolling heating and coating the carbon fiber filament therein; and (d) making the carbon fiber filaments opposite to each other A power terminal is provided at the end. The flexible flat strip heater can be widely used for small articles such as clothes, waist protectors, gloves, and large articles such as blankets and quilts, and is used as a source of human body heating.

However, as shown in FIG. 1, the power terminal 11 of the heat conducting strip 10 has the carbon fiber filament 12 having a bonding section 121 exposed at both ends of the thermoplastic plastic sleeve 13 before being packaged, and the power terminal 11 is packaged. At this time, the bonding portion 121 of the carbon fiber filament 12 is directly sandwiched. Therefore, the power terminal 11 easily pinches the bonding portion 121 of the carbon fiber filament 12 during the packaging process, thereby highlighting the defect that the production yield is not high. In addition, just because the power terminal 11 is directly clamped to the bonding section 121 of the carbon fiber filament 12 during packaging, when the power terminal 11 is repeatedly bent relative to the thermoplastic plastic sleeve 13, part of the carbon fiber The wire 12 is easily broken by the power terminal, and even the entire carbon fiber filament 12 is broken, which highlights the defect of insufficient service life.

The object of the present invention is to provide a method for packaging a heat conducting strip with a power terminal and a structure thereof, which mainly clamps a power terminal portion to a thermoplastic plastic and partially contacts the carbon fiber wire, thereby improving the yield of the manufacturing and increasing the bending. Service life.

In order to achieve the foregoing objective, a method for packaging a heat conductive strip with a power terminal according to the present invention includes the following steps: (a) taking a plastic sleeve coated with a carbon fiber filament unit, and the plastic sleeve has a plastic The bonding end portion and the carbon fiber filament unit have a carbon fiber bonding end covered by the plastic bonding end; (b) being clamped to the plastic sleeve by a positioning mold to fix one end of the plastic sleeve; (c) The plastic bonded end portion is clamped by a pull-off mold, and the carbon fiber joint end portion is not clamped by the pull-off mold; (d) the pull-off mold is pulled away from the positioning mold to bond the plastic The end portion is broken to form a plastic bond breakage portion, and the carbon fiber joint end portion is exposed to the plastic sleeve, wherein the plastic joint break portion shields a portion of the carbon fiber joint end portion; and (e) takes a power terminal The sleeve is clamped to the carbon fiber-bonding end portion, and after the pressurization, the power terminal has a terminal clamping portion that is clamped to the plastic-bonded fracture portion, and a carbon fiber-bonding end portion is guided. A conductive contact terminal section.

In addition, in order to achieve the foregoing object, a heat conductor strip having a power terminal according to the present invention comprises: a carbon fiber filament unit having a carbon fiber bonded end portion; and a plastic sleeve having a length shorter than a length of the carbon fiber filament unit and The carbon fiber filament unit is coated and has a plastic joint breaking portion covering a part of the carbon fiber bonding end portion; and a power terminal is sleeved on the end portion of the plastic bond breaking portion and the carbon fiber, and has a plastic bond a terminal clamping section clamped by the breaking portion, and a terminal conducting section electrically contacting the carbon fiber bonding end.

Preferably, the length of the plastic bond breaking portion is up to 3 mm, and the length of the power terminal is between more than 3 mm and less than or equal to 10 mm.

Preferably, wherein the power terminal has a thickness of at least 0.3 mm.

Preferably, in the step (d), the pulling mold has a pulling force of at least 3 kg/cm ² .

Preferably, in the step (e), the width of the power terminal after pressing is less than the width of the plastic sleeve.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

Before the detailed description is made, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2 to FIG. 8 , a method for packaging a thermal strip with a power terminal according to an embodiment of the present invention includes the following steps:

(a) taking a plastic sleeve 30 covered with a carbon fiber filament unit 20, and the plastic sleeve 30 has a plastic joint end portion 31 and the carbon fiber filament unit 20 has a carbon fiber joint end covered by the plastic joint end portion 31. In the embodiment, the lengths 311 and 211 of the plastic bonded end portion 31 and the carbon fiber bonded end portion 21 are both 6 mm.

(b) The plastic sleeve 30 is clamped by a positioning mold 41 so that one end of the plastic sleeve 30 is fixed.

(c) being clamped to the plastic joint end 31 by a pull-off mold 42, and the carbon fiber joint end portion 21 is not clamped by the pull-off mold 42; in other words, the pull-off mold 42 is flashed through the carbon fiber joint. The end portions 21 are clamped to both sides of the plastic joint end portion 31 to avoid simultaneously breaking the carbon fiber joint end portion 21 while performing the following steps.

(d) pulling the pull-off mold 42 away from the positioning mold 41, partially breaking the plastic joint end portion 31 to form a plastic joint breaking portion 32, and exposing the carbon fiber joint end portion 21 to the plastic sleeve 30. The plastic bond breaking portion 32 shields a portion of the carbon fiber bond end portion 21, that is, a portion Width 322 of the plastic bond break portion 32 is greater than a width 212 of the carbon fiber bond end portion 21; in this embodiment, The pull-off mold 42 has a pulling force of at least 3 kg/cm ² and the plastic-bonded broken portion 32 has a length 321 of 3 mm.

(e) taking a power terminal 50 to the plastic bond breaking portion 32 and the carbon fiber bonding end portion 21, and pressurizing the power terminal 50 to have a terminal clamping portion 51 that is clamped to the plastic bond breaking portion 32. And a terminal conductive portion 52 that is in conductive contact with the carbon fiber bonding end portion 32. In the embodiment, the length 53 of the power terminal 50 is 6 mm, but not limited thereto, and is greater than 3 mm and less than The thickness of the power terminal 50 is 0.3 mm, and the width 55 of the power terminal 50 after pressing is less than the width 33 of the plastic sleeve 30.

The above description is the description of the flow of each step of the embodiment of the present invention. Therefore, the present invention provides a structure of a heat conducting strip with a power terminal, which is mainly composed of a carbon fiber unit 20, a plastic sleeve 30, and a power terminal 50, wherein:

The carbon fiber filament unit 20 has a carbon fiber bonded end portion 21.

The plastic sleeve 30 has a length 321 shorter than the length 211 of the carbon fiber filament unit 21 and covers the carbon fiber filament unit 20, and has a plastic joint breaking portion 32 that shields a portion of the carbon fiber bonding end portion 21;

The power terminal 50 is sleeved on the plastic bond breaking portion 32 and the carbon fiber bonding end portion 21, and has a terminal clamping portion 51 that is clamped to the plastic bond breaking portion 32, and a carbon fiber bonding end portion 21 Conductively contacting terminal conductive segments 52.

Accordingly, the present invention forms the plastic sleeve 30 with a plastic bond breaking portion 32 that covers a portion of the carbon fiber bonded end portion 21, and exposes a portion of the carbon fiber bonded end portion 21 to the plastic sleeve 30, and the power source is When the terminal 50 is packaged, the terminal clamping portion 51 is clamped to the plastic bond breaking portion 32, and the terminal conductive portion 52 is in conductive contact with the carbon fiber bonding end portion 21 exposed to the plastic sleeve 20. Therefore, the power source is The terminal 50 is clamped to the plastic bond break 32 and is in conductive contact with the carbon fiber bond end 21. The invention is characterized in that the power terminal 50 is clamped to the plastic bond breaking portion 32 to prevent the power terminal 50 from being directly clamped to the carbon fiber wire unit 20 during the packaging process, thereby causing the carbon fiber wire unit 20 to break. And when the power terminal 50 is prevented from being repeatedly bent relative to the plastic sleeve 30, part or all of the carbon fiber filament unit 20 is broken by the power terminal 50, thereby realizing the improvement of the manufacturing yield and the invention. Increase the service life of the bend.

It should be noted that since the length 321 of the plastic bond breaking portion 32 is set to a maximum of 3 mm, the power terminal 50 is mainly performed when the length 321 of the plastic bond breaking portion 32 exceeds 3 mm. During the soldering process, the plastic bond breaking portion 32 is melted, which affects the stability of the power terminal 50 and the plastic sleeve 30.

Secondly, the length 53 of the power terminal 50 is set to be greater than 3 mm and less than 10 mm, which mainly enables the power terminal 50 to be clamped to the plastic bond breaking portion 32 and can be combined with the carbon fiber when being packaged. The wire unit 20 is in conductive contact, so that the heat conducting strip has the effect of improving the yield of the production and increasing the service life of the bending on the basis of heat generation.

Furthermore, in the present invention, the thickness 54 of the power terminal 50 is set to at least 0.3 mm, which mainly avoids the defect that the heat conducting strip is excessively used and the local heat storage is too high when the power terminal 50 is packaged.

In the above, the above embodiments and the drawings are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes and modifications according to the scope of the present invention should be The scope of the invention is covered.

[知知]
10‧‧‧heat strip
11‧‧‧Power terminal
12‧‧‧Carbon fiber
121‧‧‧Combined section
13‧‧‧ Thermoplastic sleeve
[this invention]
20‧‧‧Carbon fiber unit
21‧‧‧ carbon fiber joint end
211‧‧‧ length
212‧‧‧Width
30‧‧‧ plastic sleeve
31‧‧‧ plastic joint end
311‧‧‧ length
32‧‧‧Plastic break
321‧‧‧ length
322‧‧‧Width
33‧‧‧Width
41‧‧‧ Positioning mould
42‧‧‧Broken mold
50‧‧‧Power terminal
51‧‧‧Terminal clamping section
52‧‧‧Terminal conductive section
53‧‧‧ Length
54‧‧‧ thickness
55‧‧‧Width

1 is a partial perspective cross-sectional view of a conventional heat conducting strip. Figure 2 is a flow chart of the present invention. Figure 3 is a schematic view of the present invention showing a state in which one end of the plastic sleeve is clamped by the positioning mold and the other end is pulled apart by the mold. Figure 4 is a cross-sectional view of line 4-4 of Figure 3. Figure 5 is a schematic view of the present invention showing the state in which the plastic bonded end of the plastic sleeve is broken to form a plastic bonded fracture. Figure 6 is a schematic view of the present invention showing the state in which the power terminal sleeve is in the front. Figure 7 is a schematic view of the present invention showing the state of the power terminal sleeve after pressurization. Figure 8 is a schematic view of the present invention showing a cross-sectional state after the power terminal is pressurized.

20‧‧‧Carbon fiber unit

21‧‧‧ carbon fiber joint end

30‧‧‧ plastic sleeve

32‧‧‧Plastic break

50‧‧‧Power terminal

53‧‧‧ Length

54‧‧‧ thickness

55‧‧‧Width

Claims (9)

A method for packaging a thermal strip with a power terminal, comprising the steps of: (a) taking a plastic sleeve coated with a carbon fiber filament unit, and the plastic sleeve has a plastic joint end and the carbon fiber filament unit has a plastic Bonding the end of the carbon fiber bonded end portion; (b) clamping the plastic sleeve with a positioning mold to fix one end of the plastic sleeve; (c) clamping the plastic joint end with a pull-off mold And the carbon fiber joint end portion is not clamped by the pull-off mold; (d) pulling the pull-off mold away from the positioning mold, so that the plastic joint end portion is broken to form a plastic joint fracture portion, and Exposing the carbon fiber bonding end to the plastic sleeve, wherein the plastic bonding fracture portion shields a portion of the carbon fiber bonding end; and (e) taking a power terminal sleeve to the carbon fiber bonding end of the plastic bonding fracture portion And pressing, the power terminal has a terminal clamping portion that is clamped to the plastic bond breaking portion, and a terminal conductive portion that is in conductive contact with the carbon fiber bonding end portion. The method for packaging a heat conductive strip with a power terminal according to claim 1, wherein the length of the plastic bond breaking portion is up to 3 mm, and the length of the power terminal is between more than 3 mm and less than or equal to 10 mm. . The method of packaging a heat conducting strip with a power terminal according to claim 1, wherein the power terminal has a thickness of at least 0.3 mm. The method of encapsulating a heat conducting strip with a power terminal according to claim 1, wherein in the step (d), the pulling mold has a pulling force of at least 3 kg/cm ² . The method for packaging a thermal strip with a power terminal according to claim 1, wherein in step (e), the width of the power terminal after pressing is less than the width of the plastic sleeve. A heat conductor strip having a power terminal, comprising: a carbon fiber filament unit having a carbon fiber bonded end; a plastic sleeve having a length shorter than a length of the carbon fiber filament unit and covering the carbon fiber filament unit, and having a cover a plastic fiber-bonding rupture portion of a portion of the carbon fiber-bonding end portion; and a power terminal that is sleeved at the end portion of the plastic-bonded rupture portion and the carbon fiber, and has a terminal clamping portion that is clamped to the plastic-bonded rupture portion, and a A terminal conductive segment in conductive contact with the carbon fiber bonded end. The structure of the heat conducting strip with the power terminal according to claim 6, wherein the length of the plastic bond breaking portion is up to 3 mm, and the length of the power terminal is between more than 3 mm and less than or equal to 10 mm. The structure of the heat conducting strip with the power terminal of claim 6, wherein the power terminal has a thickness of at least 0.3 mm. The structure of the heat conducting strip with the power terminal according to claim 6, wherein the width of the power terminal is smaller than the width of the plastic sleeve.