CN101814397A - Temperature controller with high reliability and long service life - Google Patents

Temperature controller with high reliability and long service life Download PDF

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Publication number
CN101814397A
CN101814397A CN200910025192A CN200910025192A CN101814397A CN 101814397 A CN101814397 A CN 101814397A CN 200910025192 A CN200910025192 A CN 200910025192A CN 200910025192 A CN200910025192 A CN 200910025192A CN 101814397 A CN101814397 A CN 101814397A
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CN
China
Prior art keywords
electrode
temperature controller
insulation
compressing tablet
bimetallic
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.)
Pending
Application number
CN200910025192A
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Chinese (zh)
Inventor
史国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINTAN HEYANG TEMPERATURE CONTROLLER PLANT
Original Assignee
JINTAN HEYANG TEMPERATURE CONTROLLER PLANT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JINTAN HEYANG TEMPERATURE CONTROLLER PLANT filed Critical JINTAN HEYANG TEMPERATURE CONTROLLER PLANT
Priority to CN200910025192A priority Critical patent/CN101814397A/en
Publication of CN101814397A publication Critical patent/CN101814397A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a temperature controller with the high reliability and the long service life. The shape of the cross section of a double-metal elastic sheet is a spherical crown surface; a slot is arranged on an insulating shell; an insulating pressing sheet and a fixed board are all positioned in the slot; and the back surface of the insulating pressing sheet is provided with a pit corresponding to the round double-metal elastic sheet, therefore, the rigidity of the double-metal elastic sheet is improved, the reliability of the action is improved, the insulating pressing sheet and the fixed board are more reliability connected with the insulating shell, disengagement among the insulating pressing sheet and the fixed board and the insulating shell is avoided to cause the defect of the out-of-control of the whole temperature controller, and the service life of the temperature controller is prolonged. According to actual comparison, the rigidity of the double-metal elastic sheet with the spherical crown surface having the same area is improved by 20-30 percent than that of the double-metal elastic sheet with the rectangle, and the reliability of the action reaches 99.99999 percent from 99.99 percent at present.

Description

Temperature controller with high reliability and long service life
Technical field:
The present invention relates to a kind of temperature control electronic component, relate in particular to a kind of temperature controller.
Background technology:
Temperature controller is a kind of temperature control apparatus element of using always, existing temperature controller as shown in Figure 1, it comprises insulation shell 1, electrode first 2, electrode second 3, elastic contact chip 4, bimetallic flexure strip 5, insulation compressing tablet 6 and fixed head 7, electrode first 2, electrode second 3 is fixed in the insulation shell 1, one end of elastic contact chip 4 is fixed on the electrode second 3, the other end is positioned at the top of electrode first 2, on electrode first 2, be provided with fixed contact 8, bimetallic flexure strip 5 is between elastic contact chip 4 and insulation compressing tablet 6, insulation compressing tablet 6 and fixed head 7 all are bonded on the insulation shell 1 by adhesive, bimetallic flexure strip 5 is a rectangle, its size is corresponding with the inner chamber of insulation shell 1, because about 100 ℃, there is following defective in the common operating ambient temperature of this temperature controller in actual use:
1. owing to insulate compressing tablet 6 and fixed head 7 all are bonded on the insulation shell 1 by adhesive, when under higher temperature conditions, using for a long time, insulation compressing tablet 6 and fixed head 7 are easy to produce degumming phenomenon, thereby cause fixed head 7 and insulation shell 1 to break away from or insulation compressing tablet 6 and insulation shell 1 disengaging, this is that one of early stage malfunctioning principal element appears in existing temperature controller.
2. the shape and structure of bimetallic flexure strip 5 is unreasonable, its rigidity of rectangular laminated structure is not high, its center of gravity does not wait to the distance of peripheral each point, make rectangular bimetallic flexure strip 5 not wait in the rigidity of different directions, thereby the insufficient rigidity that causes whole bimetallic flexure strip 5, make that the switching motion reliability of bimetallic flexure strip 5 is not high, after using a period of time, the rigidity decline of bimetallic flexure strip 5 is serious, until normal switching motion, this is to cause early stage another the malfunctioning factor of existing temperature controller.
Owing to have above-mentioned two defectives, make to have the reliability of temperature controller now and be difficult to useful life and improve.
Summary of the invention:
In order to overcome the above-mentioned defective that existing temperature controller exists, the purpose of this invention is to provide a kind of temperature controller with high reliability and long service life.
The technical scheme that the present invention takes is:
Temperature controller with high reliability and long service life of the present invention, comprise insulation shell 1, electrode first 2, electrode second 3, elastic contact chip 4, bimetallic flexure strip 5, insulation compressing tablet 6 and fixed head 7, electrode first 2, electrode second 3 is fixed in the insulation shell 1, one end of elastic contact chip 4 is fixed on the electrode second 3, the other end is positioned at the top of electrode first 2, on electrode first 2, be provided with fixed contact 8, bimetallic flexure strip 5 is between elastic contact chip 4 and insulation compressing tablet 6, it is characterized in that: the cross sectional shape of described bimetallic flexure strip 5 is a spherical crown surface, on insulation shell 1, be provided with slot 11, insulation compressing tablet 6 and fixed head 7 all are arranged in slot 11, and fixed head 7 is positioned at the outside of insulation compressing tablet 6, is provided with the bimetallic flexure strip 5 corresponding circular pit 61 with spherical crown surface at the back side of insulation compressing tablet 6.
Further, be enclosed in admittedly in the slot 11 by fixing glue at insulation compressing tablet 6 and fixed head 7.
Further, be provided with the circular arc bending at the stiff end of elastic contact chip 4, be provided with moving contact 41 below movable end, be provided with application of force convex body 42 in the centre position, elastic contact chip 4 is fixed on the electrode second 3 by the circular arc bending.
Be convenient to fixed insulation compressing tablet 6 and the fixing slot 11 of fixed head 7 insertions owing on insulation shell 1, be provided with, make between insulation compressing tablet 6 and fixed head 7 and the insulation shell 1 be connected more reliable, stopped to produce in actual use between insulation compressing tablet 6 and fixed head 7 and the insulation shell 1 and broken away from, cause whole temperature controller malfunctioning, defective that can't operate as normal, if band glue seals admittedly in the time of in insulation compressing tablet 6 and fixed head 7 slot 11 on inserting insulation shell 1, its effect can be better.On the other hand, because former rectangular bimetallic flexure strip 5 is designed to spherical crown surface, under the equal area condition, the integral rigidity of the bimetallic flexure strip 5 of spherical crown surface has had and has increased substantially, through actual specific, the rigidity of spherical crown surface bimetallic flexure strip 5 of the same area improves 20%~30% than rectangular rigidity, and the reliability of switching motion reaches 99.99999% by existing 99.99%, and promptly malfunctioning probability reaches 1,000,000/.
Description of drawings:
Fig. 1 is the structural representation of existing temperature controller;
Fig. 2 is the structural representation of temperature controller of the present invention;
Fig. 3 and Fig. 4 are contour structures schematic diagram of the present invention;
Wherein, Fig. 4 is the right view of Fig. 3;
Fig. 2 is an A-A cutaway view Amplified image among Fig. 3;
Fig. 5, Fig. 6 remove the structural representation of insulation after compressing tablet 6, fixed head 7 and the bimetallic flexure strip 5 for the present invention;
Wherein, Fig. 5 is a B-B cutaway view among Fig. 6;
Among the figure: the 1-insulation shell; 2-electrode first; 3-electrode second; The 4-elastic contact chip; 5-bimetallic flexure strip; The 6-compressing tablet that insulate; The 7-fixed head; The 8-fixed contact; The 11-slot; The 41-moving contact; 42-application of force convex body; The 61-pit.
Embodiment:
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
Embodiment 1: temperature controller with high reliability and long service life of the present invention, as Fig. 2~shown in Figure 6, it comprises insulation shell 1, electrode first 2, electrode second 3, elastic contact chip 4, bimetallic flexure strip 5, insulation compressing tablet 6 and fixed head 7, and electrode first 2, electrode second 3 all are fixed in the insulation shell 1; Stiff end at elastic contact chip 4 is provided with the circular arc bending, below movable end, be provided with moving contact 41, be provided with application of force convex body 42 in the centre position of elastic contact chip 4, one end of elastic contact chip 4 is welded on the electrode second 3 by the circular arc bending, elastic contact chip 4 movable ends are positioned at the top of electrode first 2, on electrode first 2, be provided with fixed contact 8, and moving contact 41 is corresponding with fixed contact 8, bimetallic flexure strip 5 is between elastic contact chip 4 and insulation compressing tablet 6, the cross sectional shape of described bimetallic flexure strip 5 is a spherical crown surface, be provided with the bimetallic flexure strip 5 corresponding circular pit 61 with spherical crown surface at the back side of insulation compressing tablet 6, on insulation shell 1, be provided with slot 11, insulation compressing tablet 6 and fixed head 7 all are inserted in the slot 11, and are sealed admittedly by fixing glue and to be integral, and fixed head 7 is positioned at the outside of insulation compressing tablet 6.

Claims (3)

1. temperature controller with high reliability and long service life, comprise insulation shell (1), electrode first (2), electrode second (3), elastic contact chip (4), bimetallic flexure strip (5), insulation compressing tablet (6) and fixed head (7), electrode first (2) and electrode second (3) all are fixed in the insulation shell (1), one end of elastic contact chip (4) is fixed on the electrode second (3), the other end is positioned at the top of electrode first (2), on electrode first (2), be provided with fixed contact (8), bimetallic flexure strip (5) is positioned between elastic contact chip (4) and the insulation compressing tablet (6), it is characterized in that: the cross sectional shape of described bimetallic flexure strip (5) is a spherical crown surface, on insulation shell (1), be provided with slot (11), insulation compressing tablet (6) and fixed head (7) all are inserted in the slot (11), and fixed head (7) places the outside of insulation compressing tablet (6), is provided with the corresponding pit of bimetallic flexure strip (5) (61) with spherical crown surface at the back side of insulation compressing tablet (6).
2. according to the described temperature controller with high reliability and long service life of claim 1, it is characterized in that: insulation compressing tablet (6) and fixed head (7) are enclosed in the slot (11) admittedly by fixing glue.
3. according to claim 1 or 2 described temperature controller with high reliability and long service life, it is characterized in that: the stiff end at elastic contact chip (4) is provided with the circular arc bending, below movable end, be provided with moving contact (41), be provided with application of force convex body (42) in the centre position, elastic contact chip (4) is fixed on the electrode second (3) by the circular arc bending.
CN200910025192A 2009-02-23 2009-02-23 Temperature controller with high reliability and long service life Pending CN101814397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910025192A CN101814397A (en) 2009-02-23 2009-02-23 Temperature controller with high reliability and long service life

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910025192A CN101814397A (en) 2009-02-23 2009-02-23 Temperature controller with high reliability and long service life

Publications (1)

Publication Number Publication Date
CN101814397A true CN101814397A (en) 2010-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910025192A Pending CN101814397A (en) 2009-02-23 2009-02-23 Temperature controller with high reliability and long service life

Country Status (1)

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CN (1) CN101814397A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280376A (en) * 2013-05-22 2013-09-04 苏州华旃航天电器有限公司 Ultra-small sealing temperature controller
CN105355509A (en) * 2015-12-04 2016-02-24 中国电子科技集团公司第四十研究所 Pin terminal type precision constant temperature relay

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280376A (en) * 2013-05-22 2013-09-04 苏州华旃航天电器有限公司 Ultra-small sealing temperature controller
CN105355509A (en) * 2015-12-04 2016-02-24 中国电子科技集团公司第四十研究所 Pin terminal type precision constant temperature relay
CN105355509B (en) * 2015-12-04 2017-09-19 中国电子科技集团公司第四十研究所 Pin terminal formula exact constant temperature relay

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Application publication date: 20100825