CN2385324Y - Temp.-indicating magnetic sheet - Google Patents
Temp.-indicating magnetic sheet Download PDFInfo
- Publication number
- CN2385324Y CN2385324Y CN 99218433 CN99218433U CN2385324Y CN 2385324 Y CN2385324 Y CN 2385324Y CN 99218433 CN99218433 CN 99218433 CN 99218433 U CN99218433 U CN 99218433U CN 2385324 Y CN2385324 Y CN 2385324Y
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- CN
- China
- Prior art keywords
- sheet
- diskette
- permanent magnetism
- joint
- magnetic sheet
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a temperature indicating magnetic sheet used for observing whether high-voltage equipment is exothermic or not. The magnetic sheet is mainly composed of a permanent magnet sheet (2) and a soft magnetic sheet (3). One end surface of the permanent magnet sheet (2) is adsorbed together with one end surface of the soft magnetic sheet (3), a short rope (5) is penetrated through a small hole and tied on two magnetic sheets, and the other end surface of the permanent magnet sheet (2) is adsorbed on a joint (1) of the equipment which is easy to be exothermic. The characteristic of the curie point of soft magnetic materials is used for causing the soft magnetic sheet (3) to fall from the permanent magnet sheet (2) after heating, and the soft magnetic sheet (3) is tied to the lower side of the permanent magnet sheet (2) by the short rope (5) in order to indicate exothermic phenomenon. The permanent magnet sheet (2) and the soft magnetic sheet (3) can be also connected in other connection modes.
Description
The utility model relates to a kind of device whether high voltage installation generates heat of observing.
In service at high voltage installation, the phenomenon that the joint generates heat owing to loose contact happens occasionally.If can not in time find, not only equipment can be burnt out, but also can bring immeasurable loss to industrial and agricultural production.Because the joint can't install instrument, have again personnel can not near or the characteristics that touch, therefore adopting intuitively way to observe this kind equipment, whether the heating phenomenon is arranged is a difficult problem always.
For addressing this problem, mainly contain following product at present on the domestic and international market: (1) long-range infrared radiation thermometer.This product involves great expense, and uses also not directly perceived.(2) temperature indicating wax disk(-sc).Paint its joint (hereinafter to be referred as joint) that is bonded at high-tension apparatus is located, along with the rising of joint temperature, this wax disk(-sc) promptly melts, and with prompting the heating phenomenon is arranged.This product cost is very low, but use not too convenient, and easily cause the mistake come off.(3) temperature indicating paper.Adopt adhesive sticker that it is bonded at the joint.Along with the rising of temperature, this temperature indicating paper can variable color or is come off, and with prompting the heating phenomenon is arranged.This product is easy to use, but the time one is long, and adhesive sticker lost efficacy easily, and was therefore also undesirable.
The material that magnetic can disappear when proposition reached design load with a kind of temperature in patented claim 952078937 is in person made weight, whether comes off with the observation weight and judges whether high voltage installation has the heating phenomenon.Because this product has a base, and need with bolt base to be fixed on the joint, so structure is complicated, it is also not too convenient to use.
The purpose of this utility model will provide a kind of improved Temp.-indicating magnetic sheet exactly, and it can make the structure of this product further simplify, and is more convenient to use.
The purpose of this utility model is achieved in that and adopts a permanent magnetism sheet (making with permanent magnetic material) and a diskette (making with soft magnetic material), an end face of permanent magnetism sheet and an end face of diskette are linked together, then it is placed in the joint.Utilize soft magnetic material to have this characteristic of Curie point, when the joint heating made the temperature of diskette reach its Curie point, the magnetic of this diskette disappeared thereupon.Adopt different connected modes between permanent magnetism sheet and the diskette, diskette is split away off from the permanent magnetism sheet, permanent magnetism sheet and diskette are split away off from the joint together.According to above phenomenon, the staff just can judge the joint the heating phenomenon.
For prevent that diskette from being broken when the permanent magnetism sheet comes off, can on diskette and permanent magnetism sheet, respectively establish an aperture, a marline is passed aperture tie up on above-mentioned two blocks of magnetic sheets.
For prevent that diskette and permanent magnetism sheet from being broken together when the joint comes off, diskette and permanent magnetism sheet can be installed in the shell.
The utility model can directly be adsorbed on the joint with it during use, so structure is simple especially, very easy to use because only need a permanent magnetism sheet, a diskette, a marline and a shell.
The concrete structure of utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is the magnetic force that utilizes the permanent magnetism sheet, with an end face of diskette and a scheme of installation that end face is attached together of permanent magnetism sheet; Fig. 2 prevents the scheme of installation broken when diskette falls; Fig. 3 utilizes bonding agent with an end face of diskette and a coherent scheme of installation of end face of permanent magnetism sheet; Fig. 4, Fig. 5 and Fig. 6 are fixed on scheme of installation in the difformity shell with diskette and permanent magnetism sheet.Be the longitudinal section shown in the figure.For clarity sake, the surface of contact of each several part all draws among the figure.
Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.
In Fig. 1: the diameter of permanent magnetism sheet (2) and diskette (3) is about 1.5 centimetres, and thickness is not wait about 0.5 centimetre.Diskette (3) is adsorbed on the end face of permanent magnetism sheet (2).During use, allow the other end of permanent magnetism sheet (2) be adsorbed on joint (1) and go up and get final product [notes: figure center tap (1) only drawn the surface of contact with permanent magnetism sheet (2)].Joint (1) adstante febre, the temperature of diskette (3) increases, and when reaching its Curie point, diskette (3) promptly splits away off from permanent magnetism sheet (2), and permanent magnetism sheet (2) still is adsorbed on the joint (1).In addition, also diskette (3) can be fixed on the joint (1).Joint (1) adstante febre, permanent magnetism sheet (2) promptly splits away off from diskette (3).This kind structure is complicated, and Gu Tuzhong does not draw.
The Curie point of diskette (3) is to determine like this: for example a certain operating equipment, its surperficial normal temperature is about 60 ℃, temperature is too high promptly to be belonged to unusually, and therefore can select Curie point is diskette (annotate: soft magnetic material has such model) about 85 ℃.
In Fig. 2: diskette (3) is adsorbed on the end face of permanent magnetism sheet (2).The circle centre position of permanent magnetism sheet (2) and diskette (3) respectively has an aperture (4), allows the length be that the marline (5) that (length is not all drawn among the figure) about 5 centimetres passes aperture (4), and each makes a call to a knot (6) at the two ends of marline (5).During use, allow the other end of permanent magnetism sheet (2) be adsorbed on the joint (1).Identical with principle among Fig. 1, when joint (1) adstante febre, diskette (3) promptly splits away off from permanent magnetism sheet (2), but by marline (5) tie up to permanent magnetism sheet (2) below.Can prevent that like this diskette (3) is rolled into that other is local or broken.In addition, also diskette (3) can be fixed on the joint (1).Joint (1) adstante febre, permanent magnetism sheet (2) promptly from diskette (3) split away off and tied up to diskette (3) below.This kind structure is complicated, and Gu Tuzhong does not draw.
In Fig. 3: an end face of permanent magnetism sheet (2) and an end face of diskette (3) are sticked together with bonding agent.During use, allow the other end of diskette (3) be adsorbed on joint (1) upward [annotate: diskette (3) has magnetic after being magnetized by permanent magnetism sheet (2)].When joint (1) adstante febre, diskette (3) and permanent magnetism sheet (2) then split away off from joint (1) together.
In Fig. 4: for prevent that diskette among Fig. 3 (3) and permanent magnetism sheet (2) from being broken downwards when eminence comes off, permanent magnetism sheet (2) is placed on the bottom of a bottle cap shape shell (7), place diskette (3) in the above, allow the upper surface of diskette (3) be exposed, permanent magnetism sheet (2), diskette (3) and shell (7) are sticked into one with bonding agent.During use, allow the upper surface of diskette (3) be adsorbed on the joint (1).When joint (1) adstante febre, diskette (3), permanent magnetism sheet (2) and shell (7) then split away off from joint (1) together.It is thicker that do the bottom surface of shell (7), is to go up and design for preventing to use mistiming that the bottom surface of shell (7) is adsorbed on joint (1).Because shell (7) if the bottom surface thinner, externally can present bigger magnetic force.
In Fig. 5: be that with Fig. 4 difference shell (8) is a hollow cylinder [bottom surface that is about to shell (7) is removed].Like this, the lower end of permanent magnetism sheet (2) also is exposed.Using method is identical with Fig. 4.
In Fig. 6: be the upper surface of diskette (3) also is encapsulated in the shell (9) with Fig. 4 difference.For the upper surface that makes diskette (3) externally still presents enough big magnetic force, the thickness of diskette (3) is corresponding to be reduced.Its using method is identical with Fig. 4.
Shell (7), shell (8) and shell (9) should adopt nonmagnetic substance to make.
In Fig. 1～Fig. 6, the structure of Fig. 2 and Fig. 4 is better.
Because the copper aluminium material material is generally all adopted in the high voltage installation joint, therefore above-mentioned Temp.-indicating magnetic sheet can be adsorbed on the fastening bolt of joint.These parts are generally all made by ferrous materials.In case of necessity, increasing an auxiliary iron plate in the joint also can.
Above-mentioned Temp.-indicating magnetic sheet also can be used on other easy heating and the impalpable equipment of personnel.
Claims (3)
1, a kind of Temp.-indicating magnetic sheet, this magnetic sheet mainly are made up of permanent magnetism sheet (2) and diskette (3), it is characterized in that an end face of permanent magnetism sheet (2) and an end face of diskette (3) are linked together.
2, Temp.-indicating magnetic sheet according to claim 1 is characterized in that and can respectively establish an aperture (4) on permanent magnetism sheet (2) and diskette (3), marline (5) is passed aperture (4) tie up on above-mentioned two blocks of magnetic sheets.
3, Temp.-indicating magnetic sheet according to claim 1 is characterized in that and permanent magnetism sheet (2) and diskette (3) can be fixed in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218433 CN2385324Y (en) | 1999-07-27 | 1999-07-27 | Temp.-indicating magnetic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218433 CN2385324Y (en) | 1999-07-27 | 1999-07-27 | Temp.-indicating magnetic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2385324Y true CN2385324Y (en) | 2000-06-28 |
Family
ID=34009630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99218433 Expired - Fee Related CN2385324Y (en) | 1999-07-27 | 1999-07-27 | Temp.-indicating magnetic sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2385324Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128693A (en) * | 2010-11-12 | 2011-07-20 | 河南省电力公司南阳供电公司 | Disconnecting link contact or wire clip abnormal heat warning device |
| CN104236747A (en) * | 2014-10-17 | 2014-12-24 | 国家电网公司 | Warning method and self-energy taking warning indicator for overheating of electric system joints |
| CN113096909A (en) * | 2021-03-30 | 2021-07-09 | 北京工商大学 | Resource-saving high-performance combined rare earth permanent magnet and preparation method thereof |
-
1999
- 1999-07-27 CN CN 99218433 patent/CN2385324Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128693A (en) * | 2010-11-12 | 2011-07-20 | 河南省电力公司南阳供电公司 | Disconnecting link contact or wire clip abnormal heat warning device |
| CN104236747A (en) * | 2014-10-17 | 2014-12-24 | 国家电网公司 | Warning method and self-energy taking warning indicator for overheating of electric system joints |
| CN113096909A (en) * | 2021-03-30 | 2021-07-09 | 北京工商大学 | Resource-saving high-performance combined rare earth permanent magnet and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |