CN104964759A - Quick-response bimetal thermometer temperature bulb structure - Google Patents
Quick-response bimetal thermometer temperature bulb structure Download PDFInfo
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- CN104964759A CN104964759A CN201510429607.6A CN201510429607A CN104964759A CN 104964759 A CN104964759 A CN 104964759A CN 201510429607 A CN201510429607 A CN 201510429607A CN 104964759 A CN104964759 A CN 104964759A
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- platinum resistance
- thermometer bulb
- system cell
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Abstract
The invention provides a quick-response bimetal thermometer temperature bulb structure, which comprises a temperature bulb tube, a platinum resistor placed in the temperature bulb tube and a bimetal element with a transmission cross bar, wherein the top part inside the temperature bulb tube is provided with a fixing plug; the bottom part of the inner side of the temperature bulb tube is provided with a lower plug; the bimetal element is fixedly connected with the lower plug; an eccentric hole is opened in the lower plug; the bottom part of the platinum resistor is packaged in the eccentric hole; the bimetal element is connected with a transmission shaft; the platinum resistor is connected with a platinum resistor lead; and the transmission shaft and the platinum resistor lead pass out of the fixing plug. In the condition of not changing the appearance of the bimetal thermometer temperature bulb, the precision of a bimetal indication value is ensured, and a remote transmission signal response speed and a bimetal thermometer response speed can be improved.
Description
Technical field
The present invention relates to a kind of thermometer, refer in particular to a kind of thermometer bulb structure of quick response bimetallic system cell.
Background technology
The mode of remote transfer signal element (being mainly platinum resistance) installed by the thermometer of traditional with thermometal is temperature-sensing element, mainly contains following several, as shown in Figure 1.
External, platinum resistive element is fixed on outside bimetallic system cell temperature-sensitive thermometer bulb, this is wherein divided into again external side-mounted, external bottom dress formula and external roof-mounted three kinds: external side-mounted as shown in Fig. 1 (a), these two kinds of mounting meanss of external bottom dress formula as shown in Fig. 1 (b) are not damaged for protecting platinum resistance, a protective sleeve need be installed additional at former thermometer bulb skin, thermometer thermometer bulb diameter will be strengthened, thermometer response speed will be greatly reduced as installed closed type protective sleeve additional, as installed non-tight type protective sleeve additional, then platinum resistance will directly be immersed in fluid to be measured, affect the life-span of platinum resistance, as shown in Fig. 1 (c) external roof-mounted due to platinum resistance installation site higher, distance environment temperature is comparatively near, will affect the measuring accuracy of platinum resistance.
Built-in, what mostly be as shown in Figure 1 (d) shows is built-in roof-mounted, because the power output of bimetallic element is less, for avoiding platinum resistance and going between and bimetallic element friction, temperature measurement error is caused to be arranged on bimetallic element top in thermometer bulb by unsettled for platinum resistance, this structure due to platinum resistance installation site higher, distance environment temperature nearer; And platinum resistance is unsettled installation, heat transfer is slower, will greatly affect the measuring accuracy of platinum resistance; Simultaneously because platinum resistance is unsettled installation, still there is the possibility with thermometal transmission shaft friction.
Summary of the invention
In order to solve bimetallic system cell because of the increase thermometer bulb volume that is configured with remote transfer signal and brings or affect indicating value accuracy or reduce platinum resistance precision or affect the problem of indicating value and platinum resistance response speed, the present invention proposes a kind of thermometer bulb structure of quick response bimetallic system cell, take thermometal as the built-in remote transfer signal element of temperature-sensing element, while ensureing precision, improve response speed.
The technical solution adopted in the present invention is: a kind of thermometer bulb structure of quick response bimetallic system cell, comprise thermometer bulb pipe and be placed in platinum resistance in thermometer bulb pipe, there is the bimetallic element of transmission cross bar, thermometer bulb pipe inner top is provided with fixed plug, thermometer bulb pipe inside bottom is provided with lower stopper, bimetallic element is fixedly connected with lower stopper, lower stopper has eccentric orfice, platinum resistance bottom package is in eccentric orfice, bimetallic element is connected with transmission shaft, platinum resistance is connected with platinum resistance lead-in wire, and transmission shaft, platinum resistance lead-in wire passes outside fixed plug.
As preferably, bottom described platinum resistance, be filled with conducting resinl with eccentric orfice surface of contact.
Preferred as one, also comprise platinum resistance fixture, platinum resistance is fixedly connected with platinum resistance fixture, and described platinum resistance fixture is welded in the eccentric orfice of lower stopper.
As further preferred, described platinum resistance fixture is interior pipe, and platinum resistance is encapsulated in internal tube.
As further preferred, between described platinum resistance and interior pipe sidewall, be filled with heat-conducting glue.
As further preferred, described platinum resistance fixture is rod iron, and platinum resistance lower end and rod iron are rigidly connected.
As preferably, one end of described lower stopper is welded with thermometer bulb pipe inside bottom, and the other end of lower stopper welds with bimetallic element.
As preferably, the fixed position of described platinum resistance lead-in wire in fixed plug is in the eccentric homonymy direction of platinum resistance.
As preferably, in angle between the transmission cross bar of described bimetallic element and eccentric orfice.Lower stopper has eccentric orfice, and after bimetallic element welds with lower stopper, ensures the transmission cross bar of bimetallic element and eccentric orfice at an angle, to ensure that bimetallic element is operationally interfered with platinum resistance and the nothing that goes between thereof.
The invention has the beneficial effects as follows: under the condition not changing bimetallic system cell thermometer bulb profile, while the precision ensureing thermometal indicating value, the response speed of remote transfer signal and bimetallic system cell can also be improved.
Accompanying drawing explanation
Fig. 1 is 4 kinds of platinum resistance fixed forms of conventional dual-metal thermometer;
Fig. 2 is the structural representation of the embodiment of the present invention 1;
Fig. 3 is the structural representation of the embodiment of the present invention 2;
Fig. 4 is the constitutional diagram that the present invention prescribes a time limit in thermometer bulb pipe under temperature-measuring range;
Fig. 5 is the constitutional diagram that the present invention prescribes a time limit in thermometer bulb pipe on temperature-measuring range;
Fig. 6 is the structural representation of the embodiment of the present invention 3.
In figure, 1-transmission shaft, 2-platinum resistance goes between, 3-platinum resistance, 4-thermometer bulb pipe, 5-bimetallic element, pipe in 6-, stopper under 7-, 8-fixed plug, 9-heat-conducting glue, 10-rod iron.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1
As shown in Figure 2, a kind of thermometer bulb structure of quick response bimetallic system cell, comprise thermometer bulb pipe 4 and be placed in platinum resistance 3 in thermometer bulb pipe, there is the bimetallic element 5 of transmission cross bar, thermometer bulb pipe inner top is provided with fixed plug 8, thermometer bulb pipe inside bottom is provided with lower stopper 7, bimetallic element is fixedly connected with lower stopper, lower stopper has eccentric orfice, directly be packaged in eccentric orfice bottom platinum resistance, bimetallic element is connected with transmission shaft 1, platinum resistance is connected with platinum resistance lead-in wire 2, and transmission shaft, platinum resistance lead-in wire passes outside fixed plug.
Wherein, bimetallic element is weldingly fixed on lower stopper, need ensure that the eccentric orfice of the transmission transverse arm of bimetallic element and lower stopper is in a certain angle, be generally acute angle, namely ensure that the transmission transverse arm of bimetallic element does not go between to produce with platinum resistance within the scope of whole Work-corner and interfere; Platinum resistance is directly encapsulated in eccentric orfice, the rigid element of platinum resistance is made all to be fixed on below the transmission transverse arm of bimetallic element, platinum resistance lead-in wire is fixed on the eccentric homonymy direction of platinum resistance in thermometer bulb top fixed plug 8, thus on the rotation work of bimetallic element without impact; Heat-conducting glue 9 is filled with between platinum resistance and eccentric orfice surface, thus there is good heat conductivility, can be very fast the dut temperature that lower stopper is experienced is passed to platinum resistance and bimetallic element inner chamber, effectively can ensure the measurement accuracy of platinum resistance, and improve the thermal response speed of bimetallic element.
Embodiment 2
As shown in Figure 3, a kind of thermometer bulb structure of quick response bimetallic system cell, comprise thermometer bulb pipe 4 and be placed in the bimetallic element 5 in thermometer bulb pipe, platinum resistance 3 and platinum resistance fixture, thermometer bulb pipe inner top is provided with fixed plug 8, thermometer bulb pipe inside bottom is provided with lower stopper 7, one end of bimetallic element is connected with lower stopper, lower stopper has eccentric orfice, platinum resistance is fixedly connected with platinum resistance fixture, platinum resistance fixture is welded in the eccentric orfice of lower stopper, bimetallic element is connected with transmission shaft 1, platinum resistance is connected with platinum resistance lead-in wire 2, transmission shaft, platinum resistance lead-in wire passes outside fixed plug.
Wherein, bimetallic element is weldingly fixed on lower stopper, need ensure that the eccentric orfice of the transmission transverse arm of bimetallic element and lower stopper is in a certain angle, be generally acute angle, namely ensure that the transmission transverse arm of bimetallic element does not go between to produce with platinum resistance within the scope of whole Work-corner and interfere; Platinum resistance fixture is interior pipe 6, platinum resistance is encapsulated in internal tube, the rigid element of platinum resistance and interior pipe is made all to be fixed on below the transmission transverse arm of bimetallic element, platinum resistance lead-in wire is fixed on the eccentric homonymy direction of platinum resistance in thermometer bulb top fixed plug 8, thus on the rotation work of bimetallic element without impact; Heat-conducting glue 9 is filled with between platinum resistance and interior pipe sidewall, thus there is good heat conductivility, can be very fast the dut temperature that lower stopper is experienced is passed to platinum resistance and bimetallic element inner chamber, effectively can ensure the measurement accuracy of platinum resistance, and improve the thermal response speed of bimetallic element; The eccentric orfice of interior pipe and lower stopper, for being welded to connect, thermometer bulb pipe identifies the eccentric direction of platinum resistance.
Because platinum resistance lead-in wire lower end platinum resistance body is fixed in interior pipe, the upper end plug that is fixed is fixed on thermometer bulb and connects, and two inclined the same sides of point of fixity, as shown in Figure 4 and Figure 5 the transmission transverse arm of bimetallic element in measurement range in rotating clockwise, do not go between to produce with platinum resistance and platinum resistance in whole rotation process and interfere, thus the accuracy of measurement of bimetallic element can be ensured.Wherein, Fig. 4 is the state that the invention of this reality is prescribed a time limit in thermometer bulb pipe under temperature-measuring range, and Fig. 5 is the state that the present invention prescribes a time limit in thermometer bulb pipe on temperature-measuring range.
Embodiment 3
In embodiment 3, resistance fixture is rod iron 10, and platinum resistance lower end and rod iron are rigidly connected, and the eccentric orfice of rod iron and lower stopper is for being welded to connect, and other are identical with in embodiment 2.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within protection scope of the present invention.
Claims (8)
1. one kind responds the thermometer bulb structure of bimetallic system cell fast, it is characterized in that: comprise thermometer bulb pipe and be placed in platinum resistance in thermometer bulb pipe, there is the bimetallic element of transmission cross bar, thermometer bulb pipe inner top is provided with fixed plug, thermometer bulb pipe inside bottom is provided with lower stopper, bimetallic element is fixedly connected with lower stopper, lower stopper has eccentric orfice, platinum resistance bottom package is in eccentric orfice, bimetallic element is connected with transmission shaft, platinum resistance is connected with platinum resistance lead-in wire, and transmission shaft, platinum resistance lead-in wire passes outside fixed plug.
2. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 1, is characterized in that: be filled with conducting resinl with eccentric orfice surface of contact bottom described platinum resistance.
3. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 1, it is characterized in that: also comprise platinum resistance fixture, platinum resistance is fixedly connected with platinum resistance fixture, and described platinum resistance fixture is welded in the eccentric orfice of lower stopper.
4. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 3, is characterized in that: described platinum resistance fixture is interior pipe, and platinum resistance is encapsulated in internal tube.
5. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 4, is characterized in that: be filled with heat-conducting glue between described platinum resistance and interior pipe sidewall.
6. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 3, is characterized in that: described platinum resistance fixture is rod iron, and platinum resistance lower end and rod iron are rigidly connected.
7. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 1, is characterized in that: the fixed position of described platinum resistance lead-in wire in fixed plug is in the eccentric homonymy direction of platinum resistance.
8. the thermometer bulb structure of a kind of quick response bimetallic system cell according to claim 1, is characterized in that: in angle between the transmission cross bar of described bimetallic element and eccentric orfice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429607.6A CN104964759A (en) | 2015-07-21 | 2015-07-21 | Quick-response bimetal thermometer temperature bulb structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510429607.6A CN104964759A (en) | 2015-07-21 | 2015-07-21 | Quick-response bimetal thermometer temperature bulb structure |
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| CN104964759A true CN104964759A (en) | 2015-10-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973486A (en) * | 2016-05-06 | 2016-09-28 | 武汉航空仪表有限责任公司 | High-speed response temperature probe and measuring method thereof |
| CN108680286A (en) * | 2018-07-04 | 2018-10-19 | 杭州盘古自动化系统有限公司 | One kind is for high-resolution heat flow signal measuring system under the wide warm area of high magnetic environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240720Y (en) * | 1995-11-10 | 1996-11-20 | 于雁腾 | Safety double-metal thermometer with signal output |
| CN2306498Y (en) * | 1997-08-15 | 1999-02-03 | 黄德昌 | Bimetallic platinum thermal resistance integrated thermometer |
| CN2544265Y (en) * | 2002-06-13 | 2003-04-09 | 华军 | Double-metal thermometer with upward view angle |
| WO2008110966A1 (en) * | 2007-03-09 | 2008-09-18 | F.O.B. Instruments, Ltd. | Bimetal thermometer having a heat conductive fluid |
| CN201688919U (en) * | 2010-05-14 | 2010-12-29 | 常州双环热工仪表有限公司 | Integral temperature indicator |
| CN204854994U (en) * | 2015-07-21 | 2015-12-09 | 华军 | Quick response bimetal thermometer's thermometer bulb structure |
-
2015
- 2015-07-21 CN CN201510429607.6A patent/CN104964759A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240720Y (en) * | 1995-11-10 | 1996-11-20 | 于雁腾 | Safety double-metal thermometer with signal output |
| CN2306498Y (en) * | 1997-08-15 | 1999-02-03 | 黄德昌 | Bimetallic platinum thermal resistance integrated thermometer |
| CN2544265Y (en) * | 2002-06-13 | 2003-04-09 | 华军 | Double-metal thermometer with upward view angle |
| WO2008110966A1 (en) * | 2007-03-09 | 2008-09-18 | F.O.B. Instruments, Ltd. | Bimetal thermometer having a heat conductive fluid |
| CN201688919U (en) * | 2010-05-14 | 2010-12-29 | 常州双环热工仪表有限公司 | Integral temperature indicator |
| CN204854994U (en) * | 2015-07-21 | 2015-12-09 | 华军 | Quick response bimetal thermometer's thermometer bulb structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973486A (en) * | 2016-05-06 | 2016-09-28 | 武汉航空仪表有限责任公司 | High-speed response temperature probe and measuring method thereof |
| CN108680286A (en) * | 2018-07-04 | 2018-10-19 | 杭州盘古自动化系统有限公司 | One kind is for high-resolution heat flow signal measuring system under the wide warm area of high magnetic environment |
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Application publication date: 20151007 |
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