CN102623243A - Double-lead anti-interference type temperature relay - Google Patents
Double-lead anti-interference type temperature relay Download PDFInfo
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- CN102623243A CN102623243A CN2012101047720A CN201210104772A CN102623243A CN 102623243 A CN102623243 A CN 102623243A CN 2012101047720 A CN2012101047720 A CN 2012101047720A CN 201210104772 A CN201210104772 A CN 201210104772A CN 102623243 A CN102623243 A CN 102623243A
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Abstract
Disclosed is a double-lead anti-interference type temperature relay which comprises a connecting post, an insulating block made of glass, a support, a fixed contact, a moving contact, a dishing bimetallic strip, an elastic movable contact spring and a casing. The lower end of the connecting post penetrates through the central area of the insulating block and is welded with the fixed contact, the middle of the connecting post body is welded with the insulating block, and the insulating block is arranged on and welded with the upper portion of the inner cavity of the support. A connecting sheet is arrange on the upper portion of the side wall of the casing; the support is inserted in the casing; a cavity forms among the casing, the support, the insulating block and the connecting post, and the fixed contact, the moving contact, the bimetallic strip and the movable contact spring are arranged in the cavity; the movable contact spring contacts with the upper side of the baseboard of the casing through three support claws; the lower end of the moving contact is riveted with the central area of the movable contact spring, the middle portion of the moving contact sleeves on the bimetallic strip and bears the bimetallic strip through a shaft shoulder; and the bimetallic strip is in a non-contact state with the movable contact spring. The bimetallic strip contacts with the lower end of the support, and the bending direction of the bimetallic strip enables the fixed contact to contact with the moving contact or to be in a non-contact state with the moving contact. A ceramic metallization insulating sheet and a base are sequentially welded on the lower side of the baseboard of the casing from top to bottom, wherein the insulating sheet is welded with the baseboard and the base of the casing respectively. The double-lead anti-interference type temperature relay has reliable operation.
Description
Technical field
The present invention relates to the anti-interference formula temperature relay of a kind of double lead.
Background technology
At present; The anti-interference formula temperature relay of double lead of a great variety, structure is also different; A kind of temperature relay commonly used, its sealing welding q&r is poor, environmental suitability (as: anti-vibration, shock resistance etc.) is poor, and its shell is directly and the housing of protected device join (an extremely direct ground connection that is temperature relay); Like this; The extraneous signal of telecommunication will directly pass on fixed contact, the moving contact, and to the electric contact state of two contacts: logical or disconnected have interference, influences the normal result of use of temperature relay.
Summary of the invention
Technical problem to be solved by this invention provides a kind of anti-interference formula temperature relay of double lead of reliable in action.
For solving the problems of the technologies described above; The invention provides the anti-interference formula temperature relay of a kind of double lead, it comprises level insulation piece that vertical binding post, glass material process, the shell of support, fixed contact, moving contact, butterfly shaped dual metal sheet, elasticity movable contact spring, open upper end and the lower end closed of both ends open up and down;
There is first wiring hole upper end of binding post; The central area of collets and the cylinder middle part and collets welding of binding post are passed in the lower end of binding post; The lower end of binding post and fixed contact welding; Collets place the inner chamber welding mutually of inner chamber top and collets with the support of support, and the inner chamber shaped upper part of the profile of collets and support matches;
The side wall upper part of shell has a level to stretch out and has the lug plate of second wiring hole, and support plug-in mounting hermetically makes to form a chamber that is airtight level sealing state between shell, support, collets, the binding post in the enclosure;
Fixed contact, moving contact, butterfly shaped dual metal sheet, elasticity movable contact spring place in the said chamber; Moving contact is the cylinder that the middle part has a shaft shoulder; Movable contact spring through on it on the base plate of three support claws that extend below and shell side contacts; The riveted joint of the lower end of moving contact and the central area of movable contact spring, middle part suit are also put bimetal leaf through shaft shoulder load, are contactless state between bimetal leaf and the movable contact spring;
End in contact under bimetal leaf and the support, the bending direction of bimetal leaf makes moving contact contact with fixed contact, perhaps makes to be contactless state between moving contact and the fixed contact;
The base plate downside from top to down of shell is welded with ceramic metallization spacer, base successively, spacer respectively with the base plate of shell, base welding.
For the purpose of the concise description problem, below the anti-interference formula temperature relay of double lead according to the invention is all abbreviated as this relay.
During use, join through the base of this relay and the housing of protected device, the upper end of binding post, lug plate are drawn lead and are electrically connected with the related circuit of protected device respectively through welding two other.
The operation principle of this relay is:
Adopt butterfly shaped dual metal sheet as temperature-sensing element; Utilize its operating principle at set point of temperature change of following moment bending direction; And under the cooperation of elasticity movable contact spring with tension force; Moving contact and fixed contact are contacted or noncontact rapidly, reach the purpose that is switched on or switched off circuit, come control circuit.
After adopting above technical scheme because the base plate downside from top to down of shell is welded with ceramic metallization spacer, base successively, spacer respectively with base plate, the base welding of shell; Therefore; The shell of this relay and the housing of protected device are contactless state, have avoided an extremely direct ground connection of this relay, make this relay have the good insulation performance withstand voltage properties; Like this; The extraneous signal of telecommunication will can not pass on fixed contact, the moving contact, and can be to the electric contact state of two contacts: logical or stopping pregnancy be given birth to and disturbed, and has guaranteed that this actuating of relay is reliable.
As improvement of the present invention, the base plate of said shell is identical with the section form of spacer; The top of base be orthohexagonal block, bottom for being shaped on the externally threaded body of rod, the outer rim of block exceeds the spacer certain distance.
The setting of regular hexagon block is convenient to through hand tools (like spanner), and the housing of the body of rod and protected device is spun, and makes this relay easy for installation.
As improvement of the present invention; There is first flange that level is overhanging the upper end of said support; There is the second overhanging flange of a level upper end of shell, and first flange is identical with the section form of second flange, and the thickness sum of first flange and second flange is 0.5 millimeter; Form a heat dam between second flange and the lug plate, carry out laser soldering and sealing after first flange and second flange are stacked up and down.
The dependency structure of first flange, second flange and heat dam can satisfy the arts demand of laser soldering and sealing between first flange and second flange, in addition well; The thickness sum of first flange and second flange is 0.5 millimeter; The hot spot characteristic of this thickness and laser is complementary, and the concentration of energy when helping laser welding between first flange and second flange more obtains the form after the good welding; To improve welding quality, make the sealing index of this relay of welding back can reach 1 * 10
-4Pacm
3/ s.
This relay be a kind of can interrupted automatically control element, when its input parameter temperature reaches certain certain value, the variation that output parameter just jumps, thereby reach purposes such as control, protection, adjusting and transmission information.The airtight level sealing of this relay, freedom from vibration and good impact resistance do not receive the interference of electromagnetic field.The suitable application area of this relay is wider; Can be widely used in every field such as military, civilian; And it has the especially little characteristics of size and quality (quality≤2 grams), is specially adapted to temperature control and the overtemperature protection of space industry, satellite, aircraft engine and onboard radar system etc.
Description of drawings
Fig. 1 is the structural representation of this relay embodiment one.
Fig. 2 is the vertical view of this relay embodiment one.
Fig. 3 is the structural representation of this relay embodiment two.
Embodiment
To combine accompanying drawing that execution mode of the present invention is specifically described below:
Embodiment one
Referring to Fig. 1, Fig. 2:
This relay comprises circular level insulation piece 2 that circular vertically binding post 1, glass material process, the shell 4 of support 3, circular horizontal fixed contact 5, moving contact 6, butterfly shaped dual metal sheet 7, round and elastic movable contact spring 8, open upper end and the lower end closed of both ends open up and down; The section form of support 3, shell 4 is identical; Be circle; The inner chamber middle part of support 3 is provided with the annular step, and there is circular hole (piece number of not shown above-mentioned step, circular hole among Fig. 1) central area of bimetal leaf 7.
The upper end of binding post 1 is flat and has the first wiring hole 1a; The central area of collets 2 and the cylinder middle part and collets 2 weldings of binding post 1 are passed in the lower end of binding post 1; The lower end of binding post 1 and fixed contact 5 welding; Collets 2 place the inner chamber welding mutually of inner chamber top and collets 2 with the support 3 of support 3, and the inner chamber shaped upper part of the profile of collets 2 and support 3 matches, and collets 2 play the buffer action of electric insulation.
The side wall upper part of shell 4 has a level to stretch out and has the lug plate 4c of the second wiring hole 4d.
There is first a flange 3a that level is overhanging the upper end of support 3; There is the second overhanging flange 4a of a level upper end of shell 4; The first flange 3a is identical with the section form of the second flange 4a, is circle, the common face of cylinder of the outer rim of the first flange 3a and the second flange 4a; The thickness sum of the first flange 3a and the second flange 4a is 0.5 millimeter (thickness of the first flange 3a and the second flange 4a is respectively 0.25 millimeter); Form a heat dam 4b between the second flange 4a and the lug plate 4c, the first flange 3a and the second flange 4a carry out laser soldering and sealing along both faces of cylinder in stacked up and down back, like this; Support 3 is inserted in the shell 4 hermetically, makes to form a chamber 11 that is airtight level sealing state between shell 4, support 3, collets 2, the binding post 1.
Fixed contact 5, moving contact 6, bimetal leaf 7, movable contact spring 8 place in the said chamber 11, and the material of fixed contact 5, moving contact 6 is the AgNi10 alloy.Moving contact 6 has the circular cylinder of a shaft shoulder 6a for the middle part; Movable contact spring 8 through on it on the base plate of three support claw 8a that extend below and shell 4 side contacts; The riveted joint of the central area of the lower end of moving contact 6 and movable contact spring 8, middle part suit are also put bimetal leaf 7 through shaft shoulder 6a load, are contactless state between bimetal leaf 7 and the movable contact spring 8.Bimetal leaf 7 is used to drive moving contact 6 actions.
The following end in contact of bimetal leaf 7 and support 3, the bending direction of bimetal leaf 7 makes the upper end of moving contact 6 contact with fixed contact 5.
The base plate downside from top to down of shell 4 is welded with round ceramic metallization spacer 9, base 10 successively.The both ends of the surface of spacer 9 have metal level (piece number of not shown above-mentioned two metal levels among Fig. 1), spacer 9 buyables.The top of base 10 be orthohexagonal block 10a, bottom for being shaped on externally threaded body of rod 10b, the area of block 10a is greater than the area of spacer 9, the outer rim of block 10a exceeds spacer 9 certain distances.Spacer 9 respectively with the base plate of shell 4, block 10a welding.Spacer 9 plays the buffer action of electric insulation.
Under the normal condition, the upper end of moving contact 6 contacts with fixed contact 5, and this relay is in on-state (for contact closed type temperature relay); Movable contact spring 8 is in the initial tension state, and when the temperature of this relay perception satisfied operation condition, bimetal leaf 7 overturn downwards; Moving contact 6 is promoted downwards; Make movable contact spring 8 compression, tension force increases, and moving contact 6, fixed contact 5 become off-state by contact condition.
Embodiment two
Referring to Fig. 3:
Need to prove that the difference of present embodiment and embodiment one only is: the bending direction of bimetal leaf 7 makes to be contactless state between upper end and the fixed contact 5 of moving contact 6.All the other concrete structures of present embodiment are identical with embodiment one, so here all the other concrete structures of present embodiment are repeated no more.
Under the normal condition, be contactless state between the upper end of moving contact 6 and the fixed contact 5, this relay is in off-state (for contact open type temperature relay); Movable contact spring 8 is in compressive state; When the temperature of this relay perception satisfied operation condition, upwards upset of bimetal leaf 7 was under the tension force effect that movable contact spring 8 discharges; Moving contact 6 is upwards promoted, and moving contact 6, fixed contact 5 become contact condition by off-state.
Above-described only is two kinds of execution modes of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be regarded as belonging to protection scope of the present invention.
Claims (3)
1. the anti-interference formula temperature relay of double lead comprises level insulation piece that vertical binding post, glass material process, the shell of support, fixed contact, moving contact, butterfly shaped dual metal sheet, elasticity movable contact spring, open upper end and the lower end closed of both ends open up and down;
There is first wiring hole upper end of binding post; The central area of collets and the cylinder middle part and collets welding of binding post are passed in the lower end of binding post; The lower end of binding post and fixed contact welding; Collets place the inner chamber welding mutually of inner chamber top and collets with the support of support, and the inner chamber shaped upper part of the profile of collets and support matches;
The side wall upper part of shell has a level to stretch out and has the lug plate of second wiring hole, and support plug-in mounting hermetically makes to form a chamber that is airtight level sealing state between shell, support, collets, the binding post in the enclosure;
Fixed contact, moving contact, butterfly shaped dual metal sheet, elasticity movable contact spring place in the said chamber; Moving contact is the cylinder that the middle part has a shaft shoulder; Movable contact spring through on it on the base plate of three support claws that extend below and shell side contacts; The riveted joint of the lower end of moving contact and the central area of movable contact spring, middle part suit are also put bimetal leaf through shaft shoulder load, are contactless state between bimetal leaf and the movable contact spring;
End in contact under bimetal leaf and the support, the bending direction of bimetal leaf makes moving contact contact with fixed contact, perhaps makes to be contactless state between moving contact and the fixed contact;
It is characterized in that: the base plate downside from top to down of shell is welded with ceramic metallization spacer, base successively, spacer respectively with the base plate of shell, base welding.
2. the anti-interference formula temperature relay of double lead according to claim 1 is characterized in that:
The base plate of said shell is identical with the section form of spacer;
The top of base be orthohexagonal block, bottom for being shaped on the externally threaded body of rod, the outer rim of block exceeds the spacer certain distance.
3. the anti-interference formula temperature relay of double lead according to claim 1 and 2; It is characterized in that: there is first flange that level is overhanging the upper end of said support; There is the second overhanging flange of a level upper end of shell, and first flange is identical with the section form of second flange, and the thickness sum of first flange and second flange is 0.5 millimeter; Form a heat dam between second flange and the lug plate, carry out laser soldering and sealing after first flange and second flange are stacked up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101047720A CN102623243A (en) | 2012-04-11 | 2012-04-11 | Double-lead anti-interference type temperature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101047720A CN102623243A (en) | 2012-04-11 | 2012-04-11 | Double-lead anti-interference type temperature relay |
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| Publication Number | Publication Date |
|---|---|
| CN102623243A true CN102623243A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101047720A Pending CN102623243A (en) | 2012-04-11 | 2012-04-11 | Double-lead anti-interference type temperature relay |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231478A (en) * | 2017-12-29 | 2018-06-29 | 中国电子科技集团公司第四十研究所 | A kind of resistance to environment sealing microminiature thermostat relay |
| CN109830402A (en) * | 2019-02-12 | 2019-05-31 | 厦门宏发电力电器有限公司 | A kind of sealing structure of sealed high voltage direct current relay |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757261A (en) * | 1995-07-26 | 1998-05-26 | Thermik Geratebau Gmbh | Temperature controller having a Bimetallic element and plural heating components |
| CN1218970A (en) * | 1997-11-27 | 1999-06-09 | 马歇尔·赫夫泽斯 | Switch device with temperature control member |
| CN2842705Y (en) * | 2005-11-02 | 2006-11-29 | 贵州航天电器股份有限公司 | Spiral elastic moving contact piece temperature relay |
| CN202502947U (en) * | 2012-04-11 | 2012-10-24 | 中国电子科技集团公司第四十研究所 | Double lead wire anti-interference type temperature relay |
-
2012
- 2012-04-11 CN CN2012101047720A patent/CN102623243A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757261A (en) * | 1995-07-26 | 1998-05-26 | Thermik Geratebau Gmbh | Temperature controller having a Bimetallic element and plural heating components |
| CN1218970A (en) * | 1997-11-27 | 1999-06-09 | 马歇尔·赫夫泽斯 | Switch device with temperature control member |
| CN2842705Y (en) * | 2005-11-02 | 2006-11-29 | 贵州航天电器股份有限公司 | Spiral elastic moving contact piece temperature relay |
| CN202502947U (en) * | 2012-04-11 | 2012-10-24 | 中国电子科技集团公司第四十研究所 | Double lead wire anti-interference type temperature relay |
Non-Patent Citations (1)
| Title |
|---|
| 罗元春等: "JUW-3M型微型恒温继电器结构设计", 《电子产品世界》, 31 July 2011 (2011-07-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231478A (en) * | 2017-12-29 | 2018-06-29 | 中国电子科技集团公司第四十研究所 | A kind of resistance to environment sealing microminiature thermostat relay |
| CN109830402A (en) * | 2019-02-12 | 2019-05-31 | 厦门宏发电力电器有限公司 | A kind of sealing structure of sealed high voltage direct current relay |
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Application publication date: 20120801 |