CN2342461Y - Current protective switch - Google Patents
Current protective switch Download PDFInfo
- Publication number
- CN2342461Y CN2342461Y CN 98223129 CN98223129U CN2342461Y CN 2342461 Y CN2342461 Y CN 2342461Y CN 98223129 CN98223129 CN 98223129 CN 98223129 U CN98223129 U CN 98223129U CN 2342461 Y CN2342461 Y CN 2342461Y
- Authority
- CN
- China
- Prior art keywords
- housing
- guide card
- wiring guide
- metal sheet
- memory metal
- 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.)
- Expired - Lifetime
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Abstract
The current protective switch of the utility model comprises a casing, a wire-connecting guide sheet, a contacting pole, a memorizing metal sheet and an elastic element. One end of the first wire-connecting guide sheet is fixedly provided with the memorizing metal sheet and a C-shaped reed. One end of the second wire-connecting guide sheet is arranged at the relative position of the memorizing metal sheet. One end of the casing is sheathed with the contacting pole, and the other end of the casing is sheathed with an adjusting element. When the current communicated in the current protective switch is suddenly ascended to exceed the set load value, the memorizing metal sheet is heated to distort to jump. The acuity reactivity of the amperage of the rated current of this current protective switch can also be exactly adjusted through the adjusting element and the jumping time of the memorizing metal can be altered to improve the stability of the product to ensure the using safety of the electric product.
Description
The utility model designs a kind of appliance switch, and is particularly a kind of when current overload, the device that can be cut off the electricity supply by the automatic spring of memory metal.
Switching device of the prior art, see also shown in Figure 5, this device has a hollow housing 70, one end of this housing 70 offers a through hole 71, and this through hole 71 is provided with a locking nut 72, be arranged with in this nut 72 section L-shaped support bar 73, one end that should support bar 73 exposes to outside the nut 72, the other end then places in the housing 70, should support bar 73 and place the end in the housing 70 to be provided with a spring 74, can make things convenient for this to support compressing of bar 73 and escape by this spring 74.
Be provided with one first wiring guide card 75 in this device, this first wiring guide card 75 is in first slotted eye 701 that wears with housing 70 other ends, and exposes to outside the housing 70.The termination of this first wiring guide card 75 in housing 70 is provided with a memory metal sheet 76, and the other end of this memory metal sheet 76 is contiguous to be supported bar 73 and place distolateral one first contact 761 that is provided with in the housing 70.
Moreover this housing 70 and first slotted eye, 701 opposite sides are provided with one second slotted eye 702, are coated with one second wiring guide card 77 in this second slotted eye 702.This second wiring guide card, 77 1 ends system is set in the housing 70, and the other end exposes to outside the housing 70, and this second wiring guide card 77 is provided with one second contact (this is not shown in the figures) in first contact, 761 opposite positions of memory metal sheet 76.When electric current feeds from the second wiring guide card 77, make second contact contact with first contact 761 of memory metal sheet 76, cause the current lead-through of the first wiring guide card, 75 second wiring guide cards 77 and form path (being the ON state); Electric current in this device raises suddenly, when surpassing the load value of setting, these memory metal sheet 76 temperature distortions, and the reverse escape of past first contact 761 and second contact, make first contact 761 separate, make this support bar 73 and place a distolateral escape in the housing 70, intercept first contact 761 and second contact simultaneously with second contact, so, the electric current of this memory metal sheet 76 and the second wiring guide card 77 can't conducting form open circuit (being the OFF state).This kind mode still has its shortcoming, because this memory metal sheet 76 is that a circular arc hotness alloy sheet is made, its processing procedure is not only complicated, essential accurate otherwise wayward its sharp degree of reaction to amperage.And if this kind prior-art devices has error and bump in respectively connecing to establish in position or manufacturing and the carrying slightly, all can make it in use, the serious mistake phenomenon takes place, cause the circuit in the whole electric equipment products to burn, form greatest loss and also cause fire.
The purpose of this utility model is to overcome existing defective in the prior art, provides a kind of and can cut off the electricity supply automatically when current overload, and be provided with the electric current safety switch of the sharp degree of reaction that can adjust the rated current amperage.
The utility model is to adopt following technical proposal:
The utility model comprises: end is provided with a through hole one by one, the other end is provided with the hollow housing of slotted eye, two are fixedly arranged in the housing slotted eye, the one end exposes to outside the housing, and the other end is located at the wiring guide card in the housing, and one is set in the through hole of housing, and an end exposes to outside the housing, the other end then places the bar that supports in the housing, one with support bar and place the flexible member that an end connects in the housing, a memory metal sheet that is connected with the wiring guide card.It is characterized in that:
One first wiring guide card, its section is L-shaped, the free end of a side extends downwards and is provided with a plate in housing, and this plate also is connected with an end of a memory metal sheet by a retaining element, and the other end of this memory metal sheet then is halved together with a C shape reed movably;
One supports bar, and it places the end in the housing to be provided with a slotted eye, is provided with a flexible member in this slotted eye, and this flexible member other end and the first wiring guide card connect, and should be provided with an extension board that can push against memory metal sheet to the end that bar is positioned at housing in addition;
One second wiring guide card, its section is L-shaped, and the one end is positioned at the memory metal sheet corresponding section;
One is to be set on the adjustment element that can adjust the second wiring guide card position in the guide groove of housing one end.
Owing to adopt technique scheme, make the utility model can accurately adjust the sharp degree of reaction of this device rated current amperage and change the memory metal escape time, improved the stability of product, to guarantee electric equipment products safety in the use.
Fig. 1 is the utility model three-dimensional exploded view;
Fig. 2 is one of utility model action cutaway view;
Fig. 3 is two cutaway views of utility model action;
Fig. 4 is another embodiment cutaway view of utility model;
Fig. 5 is the cutaway view of prior art switch.
The utility model will be further described below in conjunction with accompanying drawing and embodiment.
See also Fig. 1, shown in Figure 2, the utility model cording has a hollow housing 10, and an end of this housing 10 offers a through hole 11.This through hole 11 is provided with a lock member 20.In the present embodiment, this lock member 20 is a nut, and what be arranged with in this nut 20 that a section is shape supports bar 21.One end that should support bar 21 exposes to outside the nut 20, and other end side is in housing 10.
In this housing 10, other is provided with the first L-shaped wiring guide card 30 of a section.This first wiring guide card 30 is set in the first set slotted eye 12 of housing 10 other ends in the end system of orthogonal, and expose to outside the housing 10, other end system is resisted against a side of first projection 101 of difference two sides in the housing 10, by these first projections 101 against, make this first wiring guide card 30 be stable in the housing 10.And this first wiring guide card 30 offers first hole 31 in the side against this first projection 101, and order is set on this first hole 31 to the extension board 211 that bar 21 is positioned at housing 10 1 ends.Other is provided with a flexible member 22, and this flexible member 22 is in supporting bar 21 shape slotted eyes and the first wiring guide card, 30 1 sides offer between first hole 31.In the present embodiment, this flexible member 22 is a spring, can conveniently support compressing and escape of bar 21 by this spring 22.
This first wiring guide card 30 is positioned at against the side free end extension downwards of first projection 101 and is provided with a plate 32.This plate 32 is provided with second hole 33, and is fixedly arranged in this second hole 33 by the end of a retaining element 34 with a memory metal sheet 40.In the present embodiment, this retaining element 34 is a rivet, and wherein this memory metal sheet 40 is that the hotness alloy sheet is made.And this memory metal sheet 40 end in addition then is halved together with a C shape reed 41 movably, these reed 41 other ends then be embedded the first wiring guide card 30 wear with first slotted eye 12 in the contiguous orthogonal place of a side, make this memory metal sheet 40 form a critical point with being embedded of 41 of this reeds.And this memory metal sheet 40 is provided with first contact 42 (consulting Fig. 2, shown in Figure 3) in a side that is embedded C shape reed 41 1 ends.
Set first slotted eye of these housing 10 other ends 12 opposite sides are provided with second slotted eye 13.Be coated with the second L-shaped wiring guide card 50 of a section in this second slotted eye 13.This second wiring guide card 50 is set in housing 10 set second slotted eyes 13 in a side of orthogonal, and expose to outside the housing 10, opposite side then is installed in a side of second projection 102 at second hole, 33 places against housing 10 interior contiguous memory metal sheets 40, by this second projection 102 against, make this second wiring guide card 50 be stable in the housing 10.And this second wiring guide card 50 is provided with and first contact, 42 corresponding second contacts 51 in an end side surface.
Moreover this housing 10 offers a guide groove 14 between first slotted eye 12 and second slotted eye 13, adjusts element 15 and is set in this guide groove 14.In the present embodiment, this adjusts element 15 be bolt, by rotating this bolt 15, and the critical point position that second contact 51 that adjustment is positioned at the second wiring guide card 50 on this guide groove 14 is relative with first contact 42.
When the utility model uses, be that the side joint that the second wiring guide card 50 is exposed housing 10 is established a power supply (not shown), and the first wiring guide card 30 expose a side-line and an electric equipment products (not shown) of housing 10 and join.Press pressing rod 21 again, connect with this first wiring guide card 30 by the spring 22 that supports in the bar 21, and order is set in, and the extension board 211 to bar 21 directly pushes against this memory metal sheet 40 in the housing 10, this memory metal sheet 40 and this reed 41 are overcome and 41 mobilizable critical points of C shape reed, and make first contact 42 of memory metal sheet 40 and second contact 51 inconsistent (consulting shown in Figure 2) of the second wiring guide card 50, and cause the current lead-through of the first wiring guide card 30 and the second wiring guide card 50 to form path (being the ON state).
Moreover, the electric current of circulation raises suddenly in device, when surpassing the load value of setting, the temperature of this memory metal sheet 40 also increases, make this memory metal sheet 40 temperature distortion postcritical positions, and the reverse escape of past first contact 42 and second contact 51, thereby make first contact 42 separate with second contact 51, should support bar 21 and also reply reset condition (consulting shown in the soil) with the escape of memory metal sheet 40.So, the electric current of this memory metal sheet 40 and the second wiring guide card 50 can't open circuit (being the OFF state) in conducting formation, so can make the electric equipment products electric current in case of raising suddenly in use, the unlikely damage of the internal circuit of these electric equipment products by the protection of this device.
When the utility model detects at product, for making the sharp degree of reaction of the rated current amperage of accurately adjusting this memory metal sheet 40, the bolt that can will adjust element 15 is by the past interior screw-in of the direction that embeds, make second contact 51 that is connected to the second wiring guide card 50 close toward first contact, 42 directions of memory metal sheets 40, and then the critical point of adjusting this second wiring guide card 50 and this memory metal sheet 40 concerns, make the distance of second contact 51 and first contact 42 reduce, to guarantee electric equipment products safety in the use.
See also shown in Figure 4ly, in another embodiment of the present utility model, this is installed in bar 21 shape slotted eyes and 22 on spring is provided with a light-emitting component 60.In the present embodiment, light-emitting component 60 is that a neon lamp and a resistance combine.First pin 61 of this light-emitting component 60 is to connect to be located at first hole, 31 1 sides that the first wiring guide card 30 is offered, and second pin 62 is to connect to be located at the second wiring guide card, 50 contiguous housing 10 set second slotted eyes, 13 places, and is provided with resistance 63 in this second pin 62.During use, when the current lead-through of the first wiring guide card 30 and the second wiring guide card 50 formed path (being the ON state), the neon lamp of this light-emitting component 60 was to extinguish; Otherwise, when electric current raises suddenly, surpass the load value of setting, the electric current of the memory metal sheet 40 and the second wiring guide card 50 can't form when opening circuit escape (being the OFF state) in conducting, utilize the electrical circuit electric current to make the neon lamp of this light-emitting component 60 shinny, by this light-emitting component 60 remind to use to note or to reset, to guarantee electric equipment products safety in the use.
Claims (9)
1, a kind of current protection switch; comprise: end is provided with a through hole one by one, and the other end is provided with the hollow housing of slotted eye, and two are fixedly arranged in the housing slotted eye; the one end exposes to outside the housing; the other end is located at the wiring guide card in the housing, and one is set in the through hole of housing, and an end exposes to outside the housing; the other end then places the bar that supports in the housing; one places the flexible member that an end connects in the housing with supporting bar, and a memory metal sheet that is connected with the wiring guide card is characterized in that:
One first wiring guide card, its section is L-shaped, the free end of a side extends downwards and is provided with a plate in housing, and this plate also is connected with an end of a memory metal sheet by a retaining element, and the other end of this memory metal sheet then is halved together with a C shape reed movably;
One supports bar, and it places the end in the housing to be provided with a slotted eye, is provided with a flexible member in this slotted eye, and this flexible member other end and the first wiring guide card connect, and should be provided with an extension board that can push against memory metal sheet to the end that bar is positioned at housing in addition;
One second wiring guide card, its section is L-shaped, and the one end is positioned at the memory metal sheet corresponding section;
One is to be set on the adjustment element that can adjust the second wiring guide card position in the guide groove of housing one end.
2, current protection switch according to claim 1; it is characterized in that: this first wiring guide card is provided with a first segment contact on the side of the end that memory metal sheet and C shape are halved together, be provided with on the side of the second wiring guide card, one end and corresponding second contact of this first contact.
3, current protection switch according to claim 1 is characterized in that: this through hole is provided with one and can makes to bar and be set in wherein lock member.
4, current protection switch according to claim 3 is characterized in that: wherein this lock member is a nut.
5, current protection switch according to claim 1 is characterized in that: wherein this memory metal sheet is that the hotness alloy sheet is made.
6, current protection switch according to claim 1 is characterized in that: wherein this flexible member is a spring.
7, current protection switch according to claim 1 is characterized in that: wherein this adjustment element is a bolt.
8, current protection switch according to claim 1 is characterized in that: wherein should support bar and be provided with a light-emitting component in slotted eye and between flexible member, these light-emitting component two pins connect respectively and are located on the first wiring guide card and the second wiring guide card.
9, current protection switch according to claim 8 is characterized in that: wherein this light-emitting component is that a neon lamp and a resistance combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223129 CN2342461Y (en) | 1998-01-22 | 1998-01-22 | Current protective switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223129 CN2342461Y (en) | 1998-01-22 | 1998-01-22 | Current protective switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2342461Y true CN2342461Y (en) | 1999-10-06 |
Family
ID=33974321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98223129 Expired - Lifetime CN2342461Y (en) | 1998-01-22 | 1998-01-22 | Current protective switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2342461Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319100C (en) * | 2004-04-09 | 2007-05-30 | 游聪谋 | Protector of circuit control |
| CN101895093A (en) * | 2010-05-06 | 2010-11-24 | 浙江海洋学院 | External force overload protector of ship outfitting numerical control cutting machine |
| CN101777463B (en) * | 2009-01-12 | 2012-05-30 | 游聪谋 | Circuit breaker |
-
1998
- 1998-01-22 CN CN 98223129 patent/CN2342461Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319100C (en) * | 2004-04-09 | 2007-05-30 | 游聪谋 | Protector of circuit control |
| CN101777463B (en) * | 2009-01-12 | 2012-05-30 | 游聪谋 | Circuit breaker |
| CN101895093A (en) * | 2010-05-06 | 2010-11-24 | 浙江海洋学院 | External force overload protector of ship outfitting numerical control cutting machine |
| CN101895093B (en) * | 2010-05-06 | 2012-07-25 | 舟山市定海区巨洋技术开发有限公司 | External force overload protector of ship outfitting numerical control cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |