CN1047868C - Electromagnetic switch for electronic product - Google Patents
Electromagnetic switch for electronic product Download PDFInfo
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- CN1047868C CN1047868C CN96114433A CN96114433A CN1047868C CN 1047868 C CN1047868 C CN 1047868C CN 96114433 A CN96114433 A CN 96114433A CN 96114433 A CN96114433 A CN 96114433A CN 1047868 C CN1047868 C CN 1047868C
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- magnet
- electromagnetic control
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Abstract
The present invention relates to an electromagnetic switch device for electronic products, which is suitable for portable electronic products such as notebook computers. The present invention comprises a permanent magnet device with a first magnetic property and an electromagnetic control magnet device, wherein the permanent magnet device is positioned in a cover of an electronic product; the electromagnetic control magnet device is positioned in a machine body of the electronic product. When the cover and the machine body are closed, the electromagnetic control magnet device has a second magnetic property to attract the permanent magnet device; when the cover and the machine body are opened as required, the electromagnetic control magnet device generates a first magnetic property to repulse the permanent magnet device.
Description
The present invention system is about a kind of switching device of electronic product, particularly a kind of electromagnetic switch of pocket electronic product.
Electronic product now generally all trends towards making light, thin, short, little, and to be fit to modern's life style, notebook computer is exactly a very typical example.Other is as the scanner of pocket and the radio-tape recorder of pocket.A something in common of these portable electronic products is when carrying, and covers to protect the body part of this electronic product with a lid.In order to prevent from when carrying, to be vibrated or to meet other object so that uncap by mistake, generally all be that the mechanical device with a kind of clasp type fixes lid and body part.Figure 1A shows the perspective view of a traditional notebook computer clasp type device.Wherein have an outstanding grab 12, cooperate the groove 16 on the body part 14 that loam cake 10 is fixed in body part 14 again in loam cake 10 central authorities.Figure 1B demonstration is worked as it before closure, and the relativeness perspective view of grab 12 and groove 16, this grab 12 are then by button handsetting 18 is mobile on the other hand.
For the mechanical device of above-mentioned clasp type,, therefore cause the fracture of inner link and spring to follow the string or be shifted easily because of being formed by spring and mechanical structure.Moreover, when carrying, meet other article when this portable electronic product, be easy to cause the situation that opens by mistake.
In order to improve the shortcoming of clasp type mechanism arrangement, the someone proposes the mechanical device that a kind of device that uses magnet-type replaces clasp type.The device of this magnet-type is to use the attraction of iron plate and magnet to fix loam cake and body part.Yet,, be difficult for uncap if the magnet magnetic of selecting for use is too strong; Opposite, if the magnet magnetic of selecting for use too a little less than, then when carrying, can open by mistake lid owing to be subjected to vibration.
In the foregoing invention background, traditional many shortcomings that switching device produced, main purpose of the present invention is providing a kind of electromagnetic switch, reaches the lid of firm closure pocket electronic product in the magnet control mode, and can open its lid easily.
According to above-described purpose, the invention provides a kind of electromagnetic switch of electronic product, be used for the pocket electronic product, for example notebook computer.In an embodiment of the present invention, including the permanent magnet of a tool N utmost point in the loam cake of electronic product, then is the Electromagnetic Control magnet arrangement that magnet and wound coil are formed in the body.When lid and body closure, the magnet arrangement of Electromagnetic Control has S polarity to hold permanent magnet.When needs were opened loam cake, a then logical electric current made the magnet arrangement of Electromagnetic Control have N polarity in coil, opens this electronic product to produce repulsive force.
Electric current in the coil is controlled by a diaphragm type switch or touch switch.When its by after being touched, then produce an electric current in coil, make the magnet arrangement tool N polarity of Electromagnetic Control to produce repulsive force.
Figure 1A shows the perspective view of a traditional notebook computer clasp type device.
Figure 1B shows traditional notebook computer before closure, the relativeness perspective view of grab and groove.
Fig. 2 A is the generalized section of the embodiment of the invention.
Fig. 2 B is another embodiment of the present invention generalized section.
Fig. 2 C is further embodiment of this invention generalized section.
Figure 3 shows that the profile perspective view of the embodiment of the invention, show a starting drive, is in order to start the magnet arrangement of Electromagnetic Control.
Fig. 2 A is a generalized section of the present invention, wherein includes the permanent magnet 22 of a tool N utmost point in the loam cake 20 of electronic product; The body 24 that is positioned at electronic product then is the magnet arrangement of an Electromagnetic Control, is reached by a magnet 26 and is formed around the coil 28 of magnet 26.When lid 20 and body 24 closures, the magnet arrangement 26,28 of Electromagnetic Control has S polarity to hold permanent magnet 22.When needs were opened loam cake 20, a then logical electric current made the magnet arrangement tool N polarity of Electromagnetic Control in coil 28, opens this electronic product to produce repulsive force.
Electric currents in the coil 26 are by a starting drive, for example diaphragm type switch 30 control perspective view as shown in Figure 3.When its by after being touched, then coil 26 in, produce an electric current, make the magnet arrangement tool N polarity of Electromagnetic Control with generation repulsive force.During other is not touched, then do not pass to electric current to save power supply.This starting drive also can be implemented by other mode, for example the touch switch.
Magnet 26 in the magnet arrangement 26,28 of Electromagnetic Control also can replace with iron plate, its operating principle and noted earlier similar, that is when lid 20 and body 24 are closed, attract mutually or pass to an electric current to produce S polarity with N utmost point permanent magnets 22 in the loam cake 20 to hold permanent magnet 22 with the iron plate 26 of obstructed electric current.When needs are opened loam cake 20, then lead to the opposite electric current of a direction in coil 28, make the magnet arrangement tool N polarity of Electromagnetic Control open this electronic product to produce repulsive force.
Fig. 2 B is the generalized section of another embodiment of the present invention, wherein includes the magnet arrangement of an Electromagnetic Control in the loam cake 21 of electronic product, is reached by a magnet 27 and is formed around the coil 29 of magnet 27; The body 25 that is positioned at electronic product then is the permanent magnet 23 of a tool N utmost point.When lid 21 and body 25 closures, the magnet arrangement 27,29 of Electromagnetic Control has S polarity to hold permanent magnet 23.When needs were opened loam cake 21, a then logical electric current made the magnet arrangement tool N polarity of Electromagnetic Control open this electronic product to produce repulsive force in coil 29.
Fig. 2 C is the generalized section of further embodiment of this invention, wherein includes the magnet arrangement of first Electromagnetic Control in the loam cake 40 of electronic product, is reached by a magnet 42 and is formed around the coil 43 of magnet 42; The body 44 that is positioned at electronic product then is the magnet arrangement of second Electromagnetic Control, is reached by a magnet 46 and is formed around the coil 48 of magnet 46.When the closed loam cake 40 of needs, then galvanize coil 43,48 respectively, make the magnet arrangement 46,48 of the magnet arrangement 42,43 of the Electromagnetic Control of winning and second Electromagnetic Control produce mutually diamagnetism to attract each other.When needs are opened loam cake 40, then galvanize coil 43,48 respectively, make the magnet arrangement 42,43 of the Electromagnetic Control of winning and the magnet arrangement 46,48 of second Electromagnetic Control produce same magnetic with mutual repulsion.Magnet 42,46 in the magnet arrangement 42,43 of first Electromagnetic Control and the magnet arrangement 46,48 of second Electromagnetic Control also can replace its operating principle and noted earlier similar with iron plate.
The above only is preferred embodiment of the present invention, is not in order to limit claim of the present invention; All other do not break away from the equivalence of being finished under the disclosed spirit and changes or modification, all should comprise within the scope of the appended claims.For example, the above-mentioned electronic product of mentioning is not limited to the notebook computer among the embodiment, and other all is applicable to the present invention as portable scanner, portable radio-tape recorder and other portable electronic product.Again, the magnet polarity among the embodiment can replace the S utmost point with the N utmost point, and replaces the N utmost point with the S utmost point.
Claims (20)
1. the electromagnetic switch of an electronic product is characterized in that, comprises:
One has the permanent magnet device of first magnetic, is positioned at the lid of this electronic product;
The magnet arrangement of one Electromagnetic Control, be positioned at the body of this electronic product, the magnet arrangement of this Electromagnetic Control comprises a magnet and around the coil of this magnet, when this lid and this body closure, magnet arrangement tool second magnetic of this Electromagnetic Control is to hold this permanent magnet device, when this lid and the unlatching of this body, this first magnetic of the magnet arrangement tool of this Electromagnetic Control is with this permanent magnet device of repulsion; And
Starting drive is positioned at this lid or body surface, in order to start the magnet arrangement of this Electromagnetic Control, makes base produce this first magnetic.
2. device as claimed in claim 1 is characterized in that, above-mentioned first magnetic is the N utmost point, and above-mentioned second magnetic is the S utmost point.
3. device as claimed in claim 1 is characterized in that, above-mentioned first magnetic is the S utmost point, and above-mentioned second magnetic is the N utmost point.
4. device as claimed in claim 1 is characterized in that, above-mentioned starting drive comprises a diaphragm type switch.
5. device as claimed in claim 1 is characterized in that, above-mentioned starting drive comprises a touch switch.
6. device as claimed in claim 1 is characterized in that, above-mentioned coil passes to electric current and makes this iron plate produce this second magnetic when this lid and this body closure.
7. device as claimed in claim 1 is characterized in that, above-mentioned coil does not pass to electric current and makes this iron plate and this permanent magnet device hold when this lid and this body closure.
8. device as claimed in claim 1 is characterized in that, above-mentioned electronic product is a notebook computer.
9. the electromagnetic switch of an electronic product is characterized in that, comprises:
The permanent magnet device of one tool, first magnetic is positioned at the body of this electronic product;
The magnet arrangement of one Electromagnetic Control, be positioned at the lid of this electronic product, the magnet arrangement of this Electromagnetic Control comprises a magnet and around the coil of this magnet, when this lid and this body closure, magnet arrangement tool second magnetic of this Electromagnetic Control is to hold this permanent magnet device, when this lid and the unlatching of this body, this first magnetic of the magnet arrangement tool of this Electromagnetic Control is with this permanent magnet device of repulsion; And
Starting drive is positioned at this lid or body surface, in order to start the magnet arrangement of this Electromagnetic Control, makes it produce this first magnetic.
10. device as claimed in claim 9 is characterized in that, above-mentioned first magnetic is the N utmost point, and above-mentioned second magnetic is the S utmost point.
11. device as claimed in claim 9 is characterized in that, above-mentioned first magnetic is the S utmost point, and above-mentioned second magnetic is the N utmost point.
12. device as claimed in claim 9 is characterized in that, above-mentioned starting drive comprises a diaphragm type switch.
13. device as claimed in claim 9 is characterized in that, above-mentioned starting drive comprises a touch switch.
14. device as claimed in claim 9 is characterized in that, above-mentioned coil passes to electric current and makes this iron plate produce this second magnetic when this lid and this body closure.
15. device as claimed in claim 9 is characterized in that, above-mentioned coil does not pass to electric current and makes when this iron plate lid and this body are closed when this lid and this body closure, does not pass to electric current and makes this iron plate and this permanent magnet device hold.
16. device as claimed in claim 9 is characterized in that, above-mentioned electronic product is a notebook computer.
17. the electromagnetic switch of an electronic product is characterized in that, comprises:
The magnet arrangement of one first Electromagnetic Control is positioned at the lid of this electronic product, and the magnet arrangement of this first Electromagnetic Control comprises magnet and around the coil of this magnet;
The magnet arrangement of one second Electromagnetic Control, be positioned at the body of this electronic product, the magnet arrangement of this second Electromagnetic Control comprise magnet and around the coil of this magnet when this lid and this body closure, the magnet arrangement of the magnet arrangement of this first Electromagnetic Control and this second Electromagnetic Control produces mutually diamagnetism to attract each other, when this lid and the unlatching of this body, the magnet arrangement of the magnet arrangement of this first Electromagnetic Control and this second Electromagnetic Control produces same magnetic with mutual repulsion; And
Starting drive is positioned at this lid surface, in order to the magnet arrangement of the magnet arrangement that starts this first Electromagnetic Control and this second Electromagnetic Control.
18. device as claimed in claim 17 is characterized in that, above-mentioned starting drive comprises a diaphragm type switch.
19. device as claimed in claim 17 is characterized in that, above-mentioned starting drive comprises a touch switch.
20. device as claimed in claim 17 is characterized in that, above-mentioned electronic product is a notebook computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114433A CN1047868C (en) | 1996-11-07 | 1996-11-07 | Electromagnetic switch for electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114433A CN1047868C (en) | 1996-11-07 | 1996-11-07 | Electromagnetic switch for electronic product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1182275A CN1182275A (en) | 1998-05-20 |
| CN1047868C true CN1047868C (en) | 1999-12-29 |
Family
ID=5122132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96114433A Expired - Fee Related CN1047868C (en) | 1996-11-07 | 1996-11-07 | Electromagnetic switch for electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047868C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100586513B1 (en) | 2003-10-16 | 2006-06-07 | 삼성전자주식회사 | Portable computer |
| CN1333319C (en) * | 2004-02-16 | 2007-08-22 | 华硕电脑股份有限公司 | Electronic device with magnetic switch |
| CN102693851B (en) * | 2011-03-24 | 2014-08-27 | 海洋王照明科技股份有限公司 | Protection structure for uncapping in power off state and lighting fixture |
| WO2013131322A1 (en) * | 2012-03-06 | 2013-09-12 | 中兴通讯股份有限公司 | Mobile terminal and dancing method thereof |
| CN106530974B (en) * | 2016-12-29 | 2021-02-19 | 南昌欧菲显示科技有限公司 | Display device |
| CN106947944A (en) * | 2017-05-23 | 2017-07-14 | 京东方科技集团股份有限公司 | One kind evaporation crucible, vapor deposition source, evaporation coating device and evaporation coating method |
| CN108001397B (en) * | 2017-11-16 | 2020-07-03 | 长安大学 | Safety roof window |
| CN108044591B (en) * | 2017-12-25 | 2020-05-26 | 蔡美珠 | Plastic pipe fitting dispenser with dustproof function |
| CN108646863A (en) * | 2018-07-24 | 2018-10-12 | 中新国际电子有限公司 | A kind of laptop case and computer |
| CN111200677A (en) * | 2018-11-16 | 2020-05-26 | 华为技术有限公司 | Folding terminal device and method for controlling opening and closing of housing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186954Y (en) * | 1994-02-26 | 1995-01-04 | 青岛市市北长江机械厂 | Electromagnetic drag mechanism |
-
1996
- 1996-11-07 CN CN96114433A patent/CN1047868C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186954Y (en) * | 1994-02-26 | 1995-01-04 | 青岛市市北长江机械厂 | Electromagnetic drag mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1182275A (en) | 1998-05-20 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19991229 Termination date: 20091207 |