CN2432570Y

CN2432570Y - Temp. indicating chip

Info

Publication number: CN2432570Y
Application number: CN 00234513
Authority: CN
Inventors: 赵根田
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-05-30
Anticipated expiration: 2010-05-11

Abstract

The utility model discloses a temperature indicating chip used for observing whether high-voltage equipment is exothermic or not. The temperature indicating chip is mainly composed of a melting object (1) and a permanent magnet (2). The melting object (1) can be cast on the permanent magnet (2) to combine as an entity The permanent magnet (2) and the melting object (1) can be adsorbed at the lower side or the side surface of an object needing to be measured via the magnetism of the permanent magnet (2) in use. When the temperature of the object needing to be measured rises to a set value, the melting object (1) can fall off to indicate that the object needing to be measured has exothermic phenomenon.

Description

A kind of sheetlike temperature indicator

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 of generating 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 high voltage installation has personnel can not be near untouchable characteristics again, instrument can't be installed again in some position, and 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 the position that it is bonded at easy heating, along with the rising of 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.(3) temperature indicating paper.Adopt adhesive sticker that it is bonded at the position of easy heating, along with the rising of temperature, this temperature indicating paper can variable color, 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 Temp.-indicating magnetic sheet that I propose in patented claim 99218433.9 is made up of a permanent magnetism sheet and diskette.This product is easy to use, but because the difficulty of the soft magnetic material of production Curie point lower (about 50 ℃ for example Celsius) is bigger, therefore, brings very big difficulty for the making of above-mentioned Temp.-indicating magnetic sheet.

The purpose of this utility model will provide a kind of improved sheetlike temperature indicator exactly, and it can make the making of this product easier.

The purpose of this utility model is achieved in that on the fusible thing that can melt when a deblocking temperature reaches setting value, fixes a permanent magnet.By the magnetic force of permanent magnet, fusible thing and permanent magnet are adsorbed on the measured object together.In case when the temperature of measured object was higher than the setting value of fusible thing, fusible thing promptly melted and freely comes off downwards.Whether melt according to fusible thing, whether the staff just can judge this measured object the heating phenomenon.

According to the needs of measured object, the material that fusible thing can adopt paraffin, tin etc. to have certain fusing point is made.

For high voltage installation, there is the heating phenomenon joint between each several part mostly.Because the joint generally is made of nonmagnetic substances such as copper, aluminium, therefore, above-mentioned sheetlike temperature indicator can be adsorbed on the Steel Bolt of joint and gets final product.

The utility model be because can adopt in the market the generally materials such as paraffin of supply, and these materials have the fusing point of regulation again, so this sheetlike temperature indicator is not only easy to use, and make easier.

Concrete structure of the present utility model is provided by following examples.

Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) are respectively front view, left view, the vertical view of the sheetlike temperature indicator of fixing a permanent magnet in the end of fusible thing and constituting; Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) are respectively front view, left view, the vertical view of the sheetlike temperature indicator that constitutes at permanent magnet of internal fixation of fusible thing; Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are respectively front view, left view, the vertical view of the sheetlike temperature indicator of fixing a permanent magnet in the outside of fusible thing and constituting; Fig. 4 (a), Fig. 4 (b) and Fig. 4 (c) are respectively front view, left view, the vertical view of the sheetlike temperature indicator that utilizes magnetic force that fusible thing is fixed on the permanent magnet and constitute; Fig. 5 is the use synoptic diagram of this sheetlike temperature indicator.

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 (a), Fig. 1 (b), Fig. 1 (c): but dissolved matter (1) make by general paraffin, round ring magnet (2) is general permanent-magnet ferrite.During making, behind melted paraffin wax, cast in permanent magnet (2) above, making it to become a diameter is 17 millimeters, highly is 15 millimeters right cylinder (annotate: mould used in the production does not draw in the drawings), so promptly constitutes a sheetlike temperature indicator.Permanent magnet (2) is made circularly herein, and its purpose is to make paraffin to be full of the inside of annulus, can make between permanent magnet (2) and the fusible thing (1) bonding more firm like this.

In Fig. 2 (a), Fig. 2 (b), Fig. 2 (c): is 8 millimeters with fusible thing (1) with a diameter, the cylindrical permanent magnet (2) that highly is 15 millimeters is cast into one, making it to become a diameter is 17 millimeters, highly is 15 millimeters right cylinder, so promptly constitutes a sheetlike temperature indicator.

In Fig. 3 (a), Fig. 3 (b), Fig. 3 (c): permanent magnet (2) being made a length of side be 10 millimeters, highly is 15 millimeters rectangular parallelepiped, at fusible thing (1) that shape is identical with it of its side casting, so promptly constitutes a sheetlike temperature indicator.Shown in this sheetlike temperature indicator and Fig. 1 (a) roughly the same, but using method difference.During use, permanent magnet (2) shown in Fig. 1 (a) and fusible thing (1) are to be arranged above and below, and arrange about among Fig. 3 (a) then being.

In Fig. 4 (a), Fig. 4 (b), Fig. 4 (c): fusible thing (1) is cast in above the annular iron plate (3), and making it to become a diameter is 17 millimeters, highly is 15 millimeters right cylinder.Rely on magnetic force, making fusible thing (1) be attracted to a thickness with iron plate (3) is 5 millimeters, and diameter is on 17 millimeters the circular permanent magnet (2), so promptly to constitute a sheetlike temperature indicator.

In Fig. 5: utilize the magnetic of permanent magnet (2), with the sheetlike temperature indicator shown in Fig. 1 (a) be adsorbed on measured object (4) below.When measured object (4) adstante febre, its heat at first is delivered to permanent magnet (2), and then is delivered to fusible thing (1).When the temperature of fusible thing (1) reaches its fusing point, this fusible thing promptly melt and freely come off downwards (annotate: permanent magnet (2) still is adsorbed on the measured object (4)).According to this phenomenon, the staff just can judge measured object (4) the heating phenomenon.

The using method of the sheetlike temperature indicator shown in other accompanying drawing and roughly the same above-mentioned.

The xsect of sheetlike temperature indicator the circle or rectangle in the foregoing description, also can make it shapes such as ellipse.In any case but, should be face between sheetlike temperature indicator and the measured object and contact, to keep good heat transmission.

In addition to the implementation, also can adopt bonding agent, fusible thing and permanent magnet are bonded together, make it to constitute a sheetlike temperature indicator.

Claims

A kind of sheetlike temperature indicator, this sheetlike temperature indicator mainly is made up of fusible thing and permanent magnet, it is characterized in that fixing on a fusible thing permanent magnet, so that the magnetic force by permanent magnet is adsorbed on the measured object fusible thing and permanent magnet together.