CN109782856B - Active disassembly structure of tablet personal computer - Google Patents
Active disassembly structure of tablet personal computer Download PDFInfo
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- CN109782856B CN109782856B CN201910212928.9A CN201910212928A CN109782856B CN 109782856 B CN109782856 B CN 109782856B CN 201910212928 A CN201910212928 A CN 201910212928A CN 109782856 B CN109782856 B CN 109782856B
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- heating wire
- metal shell
- shape memory
- personal computer
- tablet personal
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- 239000002184 metal Substances 0.000 claims abstract description 82
- 238000005485 electric heating Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 25
- 230000005284 excitation Effects 0.000 claims abstract description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000012781 shape memory material Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000002861 polymer material Substances 0.000 abstract description 5
- 229920000431 shape-memory polymer Polymers 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 238000004064 recycling Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an active disassembly structure of a tablet personal computer, wherein a connecting piece between shells is manufactured by combining a plastic buckle and a shape memory alloy round tube in the tablet personal computer, all parts in the shell are fixed by screws made of shape memory polymer materials, and meanwhile, the temperature required by excitation of the shape memory materials is provided by heating wires connected to the metal shell of the tablet personal computer. The waste tablet personal computer is conveyed to the disassembling unit by the conveying unit, the control piece in the disassembling unit drives the plurality of pairs of electrified contacts to reciprocate up and down, the contacts are fully contacted with the metal shell of the tablet personal computer when moving downwards, and the electric heating wires are electrified to generate heat, so that the two shape memory materials are heated and excited, and each connecting relation is invalid. After the tablet personal computer is disassembled, the conveying unit conveys the tablet personal computer out, and meanwhile, the next group of tablet personal computers to be disassembled are conveyed to the disassembling unit. The invention has high efficiency and no damage, and can be applied to the disassembly of tablet computers in large scale.
Description
Technical Field
The invention relates to an active disassembly structure in a tablet personal computer, which can realize nondestructive disassembly and safe recycling of the tablet personal computer.
Background
The scrapping of a tablet personal computer does not mean that all parts in the tablet personal computer lose functions, so the tablet personal computer still has great recycling value. If the waste is recycled, the problem of disassembly is solved, the traditional disassembly method relies on a large amount of manpower or mechanical pulverization, and the former method can only be carried out one by one, namely only one product can be disassembled at a time, and the efficiency is low; the latter can destroy many reusable parts, only can recycle materials, greatly reduces the recycling value of products and causes huge waste. At present, the technology for disassembling the whole terminal of a tablet computer and the like has a certain achievement, for example, CN20178637871.5 discloses a method for recycling the waste mobile phone, which has the advantages that the waste mobile phone can be disassembled step by step, and all parts in the waste mobile phone are classified and recycled, but the whole device is complex, a plurality of mechanical arms are used for disassembling and recycling screws, disassembling a shell and the like, and the steps of the disassembling process are more, the time is consumed, and resources are wasted; CN20128552143.4 discloses a method for actively disassembling a liquid crystal display device, which has the advantages of fast disassembly speed and high efficiency, but the liquid crystal display device needs to be integrally heated during disassembly to reach the temperature required by deformation of the shape memory material, thus most heat is wasted.
The efficient, lossless and low-energy-consumption disassembly of the tablet personal computer becomes a technical problem to be solved at home and abroad. However, most of the existing disassembly technologies of mobile phones and tablet computers focus on manufacturing a disassembly device according to an existing connection structure, which makes the disassembly process more complex and the recovery efficiency lower.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention combines the shape memory alloy material with the common buckle and the spring to manufacture the connecting structure in the tablet personal computer based on the characteristics that the shape memory alloy material generates larger driving force by thermal deformation and the shape memory polymer material generates larger deformation by thermal deformation, and provides a temperature field required by deformation for the shape memory material in a hot wire excitation mode. The device and the method for efficiently disassembling the tablet personal computer in a large scale are provided.
The invention solves the technical problems by adopting the following scheme:
according to the active disassembly structure of the tablet personal computer, a clamping groove and a semi-cylindrical groove I are formed in the side wall of a metal shell of the tablet personal computer; the edge of the computer display screen is provided with a buckle and a semi-cylindrical groove II corresponding to the clamping groove and the groove I, and a linear groove III which surrounds the display screen and connects the grooves II in series is arranged for accommodating the electric heating wire; the buckle and the clamping groove are buckled to form a connection relationship between the back metal shell and the display screen. The first groove and the second groove are correspondingly combined into a cylindrical cavity, and a shape memory alloy round tube is placed in the cavity; the bottom surface of the metal shell is provided with a circular groove IV for placing a spring, and the spring is respectively arranged between the metal shell and the display screen, between the metal shell and the integrated circuit board and is in a compressed state during installation; the outer side of the metal shell is embedded with a metal sheet, and a small hole is formed in the shell right below the metal sheet and can be penetrated by a heating wire; the integrated circuit board is fixed on the metal shell through screws and screw holes; the electric heating wires are arranged in the linear groove III, sequentially penetrate through the shape memory alloy round tube, one end of the electric heating wires penetrates through the small hole to be connected with the metal sheet, and the other end of the electric heating wires is fixed on the metal shell; the other electric heating wire sequentially surrounds the screw hole, one end of the electric heating wire passes through the small hole to be connected with the metal sheet, and the other end of the electric heating wire is fixed on the metal shell.
The power of the two electric wires is 5 kW-8 kW, one electric wire only passes through the inner hole section of the circular tube of the shape memory alloy to be an electric wire, the other part is a wire, the other part is an electric wire only around the screw section, the other part is replaced by a wire, and the outer parts of the two electric wires are coated with a very thin insulating coating, so that the two electric wires can be respectively contacted with the back metal shell and the metal sheet at two ends to conduct electricity.
The buckle is made of plastic, the excitation temperature of the shape memory alloy round tube is 80-120 ℃, and the spring is made of carbon steel.
The metal sheet is inlaid on the outer surface of the back metal shell, an insulating isolation layer is arranged between the metal sheet and the back metal shell, a small hole is formed right below the metal sheet, a heating wire and an electric heating wire can pass through the small hole, and when the two heating wires are electrified by the electrified contact, the metal sheet and any position of the back metal shell are directly contacted respectively.
The active disassembly process of the tablet personal computer is as follows:
a. grouping the tablet computers to be disassembled according to the sizes, wherein the tablet computers with the same size are grouped, and disassembling the tablet computers by taking the group as a unit, and placing the tablet computers on a processing station in the same direction when disassembling the tablet computers, so that the back metal shell 6 faces upwards;
b. switching on a power supply, and continuously contacting the anode and the cathode of the power supply with the metal sheet and the back metal shell for 10s-15s by adopting charged contacts to enable two heating wires in the tablet personal computer to be electrified and heat;
c. the heat generated by the electric heating wire in the shape memory alloy round tube causes the shape memory alloy round tube to be heated and excited to deform, the generated driving force releases the buckle from the clamping groove, the connection relationship between the back metal shell and the display screen is invalid, and meanwhile, the spring in a compressed state is recovered to restore the original length to thoroughly separate the back metal shell and the display screen; the heat generated by the electric heating wire surrounding the screw hole causes the shape memory polymer material screw to be heated and excited to deform, the screw thread disappears, the connection relationship between the integrated circuit board and the back metal shell is invalid, and meanwhile, the spring recovery length between the integrated circuit board and the metal shell thoroughly separates the integrated circuit board and the metal shell; and (5) finishing the disassembly.
Compared with the prior art, the invention has the beneficial effects that:
1. only the tablet personal computer is electrified, the shape memory material is deformed at a certain temperature and time, so that the connecting piece loses the connecting effect, the components of the tablet personal computer cannot be damaged in the disassembling process, and the shape memory material can be recycled.
2. The electric heating wire is arranged in the inner hole of the shape memory alloy circular tube, so that the electric heating wire and the shape memory alloy circular tube are fully contacted, and the utilization rate of electric energy is improved; the metal shell of the tablet personal computer is used for conducting electricity, so that the way of electrifying the heating wire is simplified.
Drawings
FIG. 1 is a schematic illustration of an active disassembly block diagram of the present invention;
FIG. 2 is a sectional view I- -I of FIG. 1;
FIG. 3 is a partial view of II in FIG. 2;
FIG. 4 is a schematic structural view of the metal shell;
fig. 5 is a schematic back view of the metal housing.
In the figure: 1-heating wire, 2-shape memory alloy round tube, 3 a-buckle, 3 b-clamping groove, 4-spring, 5-screw, 6-metal shell, 6 a-groove I, 6 b-screw hole, 6 c-small hole, 6 d-groove IV, 7-metal sheet, 8-display screen, 8 a-groove II, 8 b-groove III and 9-integrated circuit board.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
As shown in the figure, in an active disassembly structure of a tablet personal computer, a clamping groove 3b and a semi-cylindrical groove I6 a are arranged on the side wall of a metal shell 6 of the tablet personal computer; the edge of the computer display screen 8 is provided with a buckle 3a and a semi-cylindrical groove II 8a corresponding to the clamping groove 3b and the groove I6 a, and a linear groove III 8b which surrounds the display screen 8 and connects the grooves II 8a in series is provided for accommodating the heating wire 1. The first groove 6a and the second groove 8a are correspondingly combined into a cylindrical cavity, and the shape memory alloy round tube 2 is placed in the cavity. The bottom surface of metal casing 6 is equipped with circular recess four 6d for place spring 4, and spring 4 installs respectively between metal casing 6 and display screen 8, metal casing 6 and integrated circuit board 9, is in compression state during the installation. The metal sheet 7 is inlaid at the outer side of the metal shell 6, and a small hole 6c is formed in the shell right below the metal sheet 7 and can be penetrated by the heating wire 1. The integrated circuit board 9 is fixed to the metal housing 6 by screws 5 and screw holes 6 b. The electric heating wire 1 is provided with two electric heating wires, one of the electric heating wires is arranged in the linear groove III 8b and sequentially penetrates through the shape memory alloy round tube 2, one end of the electric heating wire penetrates through the small hole 6c to be connected with the metal sheet 7, and the other end of the electric heating wire is fixed on the metal shell 6; the other heating wire 1 sequentially surrounds the screw hole 6b, one end passes through the small hole 6c to be connected with the metal sheet 7, and the other end is fixed on the metal shell 6.
After the parts are connected, the buckle 3a and the clamping groove 3b are buckled to form a connection relation between the back metal shell 6 and the display screen 8, and the shape memory polymer material screw 5 and the screw hole 6b are screwed to fix the integrated circuit board 9 on the back metal shell 6.
As shown in fig. 4, the power of the two heating wires 1 is 5-8 kw, the heating wires 1 passing through the inner holes of the round alloy tube 2 are heating wires only in the inner hole sections passing through the round shape memory alloy tube 2, other parts are wires, the heating wires 1 surrounding the screw holes are heating wires only in the surrounding screw sections, other parts are replaced by wires, and a very thin insulating coating is coated on the outer part of the whole heating wires, so that the heating wires can be respectively contacted and conducted with the back metal shell 6 and the metal sheet 7 only at two ends. In the present invention, the heating wire may be fixed to the metal shell 6 and the metal sheet 7 by welding. As shown in fig. 5, the metal sheet 7 is inlaid on the outer surface of the back metal casing 6, and an insulating isolation layer is arranged between the metal sheet 7 and the back metal casing 6, and a small hole 6c is arranged right below the metal sheet 7, so that two heating wires 1 can pass through, and when a pair of electrified contacts electrify the heating wires, the two heating wires directly contact any positions of the metal sheet 7 and the back metal casing 6 respectively.
In the invention, the excitation temperature of the shape memory alloy round tube is 80-120 ℃, and the spring material is carbon steel. The positions of the buckle 3a and the shape memory alloy round tube 2 which are made of plastic are reasonably arranged according to the internal structure of the tablet personal computer, and the sizes of the buckle 3a and the shape memory alloy round tube are also determined according to the connection strength between the back metal shell 6 and the display screen 8 in the tablet personal computer; the size and strength of the spring are determined according to the size of the inside of the tablet computer and the mass of the components.
The active disassembly process of the tablet personal computer in the embodiment is as follows:
a. grouping the tablet computers to be disassembled according to the sizes, wherein the tablet computers with the same size are grouped, and disassembling the tablet computers by taking the group as a unit, and placing the tablet computers on a processing station in the same direction when disassembling the tablet computers, so that the back metal shell 6 faces upwards;
b. the power supply is switched on, and the anode and the cathode of the power supply are respectively used as an electrified contact to be in continuous contact with the metal sheet 7 and the back metal shell 6 for 10s-15s, so that the two electric heating wires 1 in the tablet personal computer are electrified and heat;
c. the heat generated by the electric heating wire 1 in the shape memory alloy round tube 2 causes the shape memory alloy round tube 2 to be heated and excited to deform, the generated driving force releases the buckle 3a from the clamping groove 3b, the connection relationship between the back metal shell 6 and the display screen 8 is invalid, and meanwhile, the spring 4 in a compressed state recovers the original length to thoroughly separate the two; the heat generated by the electric heating wire 1 surrounding the screw hole 6b causes the shape memory polymer material screw 5 to be heated and excited to deform, the screw thread disappears, the connection relationship between the integrated circuit board 9 and the back metal shell 6 is invalid, and meanwhile, the spring 4 between the integrated circuit board 9 and the metal shell 6 recovers to restore the original length to thoroughly separate the two; and (5) finishing the disassembly.
Claims (3)
1. An initiative dismantlement structure of panel computer, its characterized in that: a clamping groove (3 b) and a semi-cylindrical groove I (6 a) are arranged on the side wall of the computer metal shell (6); a buckle (3 a) and a semi-cylindrical groove II (8 a) are arranged at the edge of the computer display screen (8) and at the corresponding positions of the clamping groove (3 b) and the groove I (6 a), and a linear groove III (8 b) which surrounds the display screen (8) and connects the groove II (8 a) in series is arranged for accommodating the heating wire (1); the buckle (3 a) and the clamping groove (3 b) are buckled to form a connection relation between the metal shell (6) and the display screen (8); the first groove (6 a) and the second groove (8 a) are correspondingly combined into a cylindrical cavity, and a shape memory alloy round tube (2) is placed in the cavity; the bottom surface of the metal shell (6) is provided with a circular groove IV (6 d) for placing a spring, and the spring is respectively arranged between the metal shell (6) and the display screen (8), between the metal shell (6) and the integrated circuit board (9) and is in a compressed state during installation; the metal shell (6) is embedded with a metal sheet (7), and a small hole (6 c) is formed in the shell right below the metal sheet (7) and can be penetrated by the heating wire (1); the integrated circuit board (9) is fixed on the metal shell (6) through the screw (5) and the screw hole (6 b); the electric heating wires (1) are arranged in the grooves III (8 b), sequentially penetrate through the shape memory alloy round tubes (2), one end of each electric heating wire penetrates through the small hole (6 c) to be connected with the metal sheet (7), and the other end of each electric heating wire is fixed on the metal shell (6); the other heating wire (1) sequentially surrounds the screw hole (6 b), one end of the heating wire passes through the small hole (6 c) to be connected with the metal sheet (7), and the other end of the heating wire is fixed on the metal shell (6).
2. The active detachment structure of a tablet computer of claim 1, wherein: the power of the electric heating wire (1) is 5 kW-8 kW, the electric heating wire (1) penetrating through the inner hole of the circular tube (2) of the shape memory alloy only uses the electric heating wire at the inner hole section penetrating through the circular tube (2) of the shape memory alloy, other parts are replaced by wires, the electric heating wire (1) encircling the screw hole only uses the electric heating wire at the encircling screw hole section, and other parts are replaced by wires.
3. The active detachment structure of a tablet computer of claim 1, wherein: the buckle is made of plastic, the excitation temperature of the shape memory alloy round tube is 80-120 ℃, and the spring is made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212928.9A CN109782856B (en) | 2019-03-20 | 2019-03-20 | Active disassembly structure of tablet personal computer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212928.9A CN109782856B (en) | 2019-03-20 | 2019-03-20 | Active disassembly structure of tablet personal computer |
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| CN109782856A CN109782856A (en) | 2019-05-21 |
| CN109782856B true CN109782856B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910212928.9A Active CN109782856B (en) | 2019-03-20 | 2019-03-20 | Active disassembly structure of tablet personal computer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111701993A (en) * | 2020-07-23 | 2020-09-25 | 南京工程学院 | Automatic nondestructive disassembly system and disassembly method for complete machine of waste mobile terminal |
| CN115945875B (en) * | 2022-10-24 | 2024-02-06 | 北京建筑大学 | Intelligent hierarchical disassembly equipment for whole assembly line of mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2515354B1 (en) * | 2010-01-29 | 2018-03-07 | Japan Aviation Electronics Industry, Limited | Method for manufacturing an led device |
| US9411439B2 (en) * | 2013-03-15 | 2016-08-09 | Logitech Europe S.A. | Input device with a customizable contour |
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- 2019-03-20 CN CN201910212928.9A patent/CN109782856B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128191A (en) * | 2010-12-23 | 2011-07-20 | 合肥工业大学 | Active disassembly structure capable of being electrothermally excited and excitation method thereof |
| CN103153013A (en) * | 2011-12-06 | 2013-06-12 | 广达电脑股份有限公司 | Reworkable electronic equipment and temperature-sensing disassembling method thereof |
| CN102998825A (en) * | 2012-12-19 | 2013-03-27 | 合肥工业大学 | Liquid crystal display framework with initiative detachment function and initiative detachment device |
| CN105828544A (en) * | 2016-04-18 | 2016-08-03 | 上海创功通讯技术有限公司 | Mobile terminal and disassembling method thereof |
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