CN2094797U - Magnetic self-keeping switch - Google Patents
Magnetic self-keeping switch Download PDFInfo
- Publication number
- CN2094797U CN2094797U CN 91217197 CN91217197U CN2094797U CN 2094797 U CN2094797 U CN 2094797U CN 91217197 CN91217197 CN 91217197 CN 91217197 U CN91217197 U CN 91217197U CN 2094797 U CN2094797 U CN 2094797U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- switch
- shell body
- magnetic self
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a magnetic self-keeping switch, which is composed of a tractive permanent magnet 1, a shell body, a movable permanent magnet component and a fixed permanent magnet 10. The shell body is composed of a cover 2 of the shell body, a wall 4 of the shell body, a base 9 of the shell body, and electrodes 7, 8. The electrode 7 and the electrode 8 are fixed on the base 9 of the shell body, and the fixed permanent magnet 10 is installed under the base 9 of the shell body. The state of the switch is switched between the two states that the switch is always opened and the switch is always closed through the variation of the sizes of the interaction force among the three magnets. The utility model has the advantages of small size, simple structure, reliable action, low circuit energy consumption and good concealment. The magnetic self-keeping switch is particularly suitable for an anti-theft alarm circuit of valuables for an individual and a family.
Description
The utility model relates to a kind of magnetic self-supporting switch, is applicable to miniature control circuit, is specially adapted to the anti-theft warning circuit of individual, family's valuables.
Existing magnetic switch is as Chinese patent CN89219781.1 " magnetic switch ".It forms magnetic switch by moving plate and a fixed contact of having moving contact, permanent magnet on the solenoid of two band soft iron iron cores, the fulcrum.The weak point of this magnetic switch is a complex structure, and volume is big, also needs two auxiliary DC control circuit to give two coil electricities respectively, makes switch motion, not too is applicable to anti-theft warning circuit.
The purpose of this utility model provides a kind of novel magnetic self-supporting switch, and it is applicable to miniature warning circuit.
The purpose of this utility model is achieved in that the magnetic self-supporting switch is made up of cylindrical traction permanent magnet, circular shell, cylindrical movable permanent magnet and cylindrical fixed permanent magnet four parts.Housing is made up of case lid, wall, housing seat.Fixed permanent magnet is contained in below the housing seat.Three contacts are arranged on the contact chip, and two electrodes are fixed on the housing seat.Electrode and external circuit join.The traction permanent magnet is connected with protected object.When object of protection was moved, the traction permanent magnet is forced to and case lid breaks away from, and movable permanent magnet and housing seat join by contact chip, contact and electrode owing to attraction makes for movable permanent magnet and fixed permanent magnet, thereby make switch closure.If be connected, can send alarm signal with alarm.Traction decide permanent magnet and case lid when joining, the switch disconnection, and magnetic self-supporting switch is in the preparation state.
The utility model magnetic self-supporting switch's advantage is: volume is little, and is simple in structure, good concealment, and reliable in action, circuit consumed power not when switch does not start is specially adapted to the anti-theft warning circuit of individual, family's valuables.
Accompanying drawing of the present utility model has:
The unidirectional magnetic self-supporting switch's structural representation of Fig. 1.
The unidirectional magnetic self-supporting switch's schematic top plan view of Fig. 2.
The unidirectional magnetic self-supporting switch A-A of Fig. 3 generalized section.
The unidirectional magnetic self-supporting switch's contact position of Fig. 4 schematic diagram.
The two-way magnetic self-supporting switch's structural representation of Fig. 5.
The two-way magnetic self-supporting switch's top electrode of Fig. 6 position view.
Below in conjunction with drawings and Examples the utility model is further described.
Magnetic self-supporting switch of the present utility model is by two kinds of versions, and a kind of is unidirectional magnetic self-supporting switch (referring to Fig. 1 and Fig. 2), and another kind is two-way magnetic self-supporting switch (referring to Fig. 5).
Fig. 1 and Fig. 2 are unidirectional magnetic self-supporting switch's structural representation of the present utility model.It is made up of cylindrical traction permanent magnet 1, circular shell, cylindrical movable permanent magnet parts and cylindrical fixed permanent magnet 10 4 parts.Housing is made up of case lid 2, housing wall 4, housing seat 9 and the electrode 7 and 8 that is fixed on the housing seat 9.Fixed permanent magnet 10 is contained in below the housing seat 9, and is bonding with all-purpose adhesive between fixed permanent magnet 10 and the housing seat 9.Electrode 7 and 8 is fixed on housing seat 9(as shown in Figure 3) on.Use housing seat 9 available printed circuit board material for convenient.Electrode 7 and 8 and external circuit join.Cylindrical movable permanent magnet parts are formed a whole by movable permanent magnet 3, contact chip 5 and contact 6.Movable permanent magnet 3 is bonding with contact chip 5 usefulness all-purpose adhesives, three contact 6(is arranged as shown in Figure 4 on the contact chip 5), contact chip 5 usefulness copper sheets or other good conductor material are made, and as a whole placing in the housing done in movable permanent magnet 3, contact chip 5 and contact 6.One of them can be made of movable permanent magnet 3 or fixed permanent magnet 10 ferromagnetic material, by the variation of magnetic interaction power size between traction permanent magnet 1, movable permanent magnet 3 and the fixed permanent magnet 10, make switch conversion mutually between Chang Kai and normally closed two states.When the magnetic self-supporting switch is inverted, require the magnetic of fixed permanent magnet 10 to guarantee to have attracted movable permanent magnet 3.Otherwise, when the magnetic self-supporting switch is just putting, require the magnetic of traction permanent magnet 1 to guarantee to have attracted movable permanent magnet 3, movable permanent magnet 3 is separated with fixed permanent magnet 10, thereby make switch motion.
Magnetic self-supporting switch's the course of work is as follows: traction permanent magnet 1 is connected with protected object.When object of protection is moved; traction permanent magnet 1 is forced to break away from case lid 2; movable permanent magnet 3 joins by contact chip 5, contact 6, electrode 7 and 8 with housing seat 9 movable permanent magnet 3 owing to attraction makes with fixed permanent magnet 10, thus switch closure.If be connected, at this moment can send alarm signal with alarm.When traction permanent magnet 1 joins with case lid 2, because the attraction of 1 pair of movable permanent magnet 3 of traction permanent magnet is greater than the attraction of 10 pairs of movable permanent magnets 3 of fixed permanent magnet, so movable permanent magnet 3 is pulled permanent magnet 1 and is attracted to case lid 2 and joins, thereby switch disconnects, and magnetic self-supporting switch is in the preparation state.
Fig. 5 is two-way magnetic self-supporting switch's structural representation of the present utility model.Its basic structure is identical with unidirectional magnetic self-supporting switch.Difference is to increase by two electrodes 11 and 12(as shown in Figure 6 on case lid 2), upper surface at movable permanent magnet 3 increases contact chip 13 and contact 14, the height of its corresponding housing wall 4 suitably increases, and wherein contact chip 13, contact 14 and contact chip 5, contact 6 structures are identical.Electrode 11 and 12 is formed another switch (going up switch) with contact chip 13 and contact 14, and this switch is opposite with former switch (following switch) operating state.When promptly drawing permanent magnet 1 and contacting with case lid 2, last switch closure, following switch opens, when traction permanent magnet 1 breaks away from case lid 2, last switch opens, following switch closure.Unidirectional magnetic self-supporting switch is identical with two-way magnetic self-supporting switch's following switching function.
Claims (2)
1, a kind of magnetic self-supporting switch, form by magnet, housing, contact, coil and auxiliary circuit thereof, of the present utility model being characterised in that: magnet is formed (movable permanent magnet 3 or fixed permanent magnet 10 one of them can be made of ferromagnetic material) by traction permanent magnet 1, movable permanent magnet 3 and fixed permanent magnet 10, housing is made up of case lid 2, housing wall 4, housing seat 9, fixed permanent magnet 10 is contained in below the housing seat 9, electrode 7 and 8 is fixed on the housing seat 9, and contact chip 5, contact 6 and movable permanent magnet 3 are fixed together.
2, magnetic self-supporting switch according to claim 1 is characterized in that: above-mentioned contact 6 is three contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217197 CN2094797U (en) | 1991-07-04 | 1991-07-04 | Magnetic self-keeping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217197 CN2094797U (en) | 1991-07-04 | 1991-07-04 | Magnetic self-keeping switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2094797U true CN2094797U (en) | 1992-01-29 |
Family
ID=4924917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91217197 Withdrawn CN2094797U (en) | 1991-07-04 | 1991-07-04 | Magnetic self-keeping switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2094797U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322523C (en) * | 2003-05-09 | 2007-06-20 | 赵舜培 | Magnetic-control switches |
| CN100416732C (en) * | 2005-01-17 | 2008-09-03 | 安发企业公司 | Magnetomotive electric switch |
| CN100454465C (en) * | 2005-08-04 | 2009-01-21 | 上海交通大学 | Detecting capsule micro magnetic control switch for full digestive tract physiological parameter |
| CN101964274A (en) * | 2010-11-05 | 2011-02-02 | 张水弟 | Magnetic switch |
-
1991
- 1991-07-04 CN CN 91217197 patent/CN2094797U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322523C (en) * | 2003-05-09 | 2007-06-20 | 赵舜培 | Magnetic-control switches |
| CN100416732C (en) * | 2005-01-17 | 2008-09-03 | 安发企业公司 | Magnetomotive electric switch |
| CN100454465C (en) * | 2005-08-04 | 2009-01-21 | 上海交通大学 | Detecting capsule micro magnetic control switch for full digestive tract physiological parameter |
| CN101964274A (en) * | 2010-11-05 | 2011-02-02 | 张水弟 | Magnetic switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |