CN204064484U - A kind of temperature sensor and temperature regulator - Google Patents
A kind of temperature sensor and temperature regulator Download PDFInfo
- Publication number
- CN204064484U CN204064484U CN201420438102.7U CN201420438102U CN204064484U CN 204064484 U CN204064484 U CN 204064484U CN 201420438102 U CN201420438102 U CN 201420438102U CN 204064484 U CN204064484 U CN 204064484U
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- China
- Prior art keywords
- temperature sensor
- push rod
- temperature
- chamber
- gear
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- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of temperature sensor and temperature regulator, described temperature sensor comprises metal shell, a piston is provided with in described metal shell, described metal shell is divided into the first mutually isolated chamber and the second chamber by described piston, temperature-sensitive paraffin is filled with in described second chamber, be provided with push rod in described first chamber, described push rod stretches out described metal shell through described first chamber.The utility model utilizes the principle of expanding with heat and contracting with cold of temperature-sensitive paraffin, when catching a cold or be heated, volume changes, and the change in displacement that the volume change of temperature-sensitive paraffin is converted into push rod the most at last exports, the utility model adopts Material Physics principle and mechanical hook-up, not by the impact of internal and external environment, and not fragile.
Description
Technical field
The utility model relates to a kind of temperature sensor and temperature regulator.
Background technology
Current temperature sensor, majority is the electric conductivity utilizing the thermo-sensitive materials such as PCT, and it depends on the sensitivity of the resistance versus temperature of material; Another kind utilizes infrared ray or electromagnetic wave measurement temperature, but it can only measure the temperature of body surface, and the accuracy of measuring is affected by environment larger; Also have one to be glass mercury temperature sensor, this temperature sensor is fragile, and the toxic gas that can volatilize after damaging, contaminated environment.
Utility model content
The utility model provides a kind of temperature sensor and temperature regulator, to solve the problems of the technologies described above.
For solving the problems of the technologies described above, the utility model provides a kind of temperature sensor, comprise metal shell, a piston is provided with in described metal shell, described metal shell is divided into the first mutually isolated chamber and the second chamber by described piston, be filled with temperature-sensitive paraffin in described second chamber, be provided with push rod in described first chamber, described push rod stretches out described metal shell through described first chamber.
Preferably, metal powder is mixed with in described temperature-sensitive paraffin.
Preferably, one end of described push rod is fixed with position limiting slide block, and described position limiting slide block is limited in described first chamber, and can slide along straight line direction.
Preferably, described position limiting slide block is provided with some flow orifices.
Preferably, oil or water is filled with in described first chamber.
Preferably, one end that described push rod stretches out described metal shell is connected with force transfering device.
Preferably, described force transfering device is ball screw.
Preferably, described ball screw comprises push rod, sleeve and ball, with the first helical guideway outside described push rod, with the second helical guideway inside described sleeve, described first helical guideway and the second helical guideway form complete track, described ball is limited in described track, and described push rod is fixedly connected with one end of described push rod.
Preferably, also comprise the second gear and the 3rd gear, described sleeve is outside with the first gear, and described first gear engages respectively with the second gear, the 3rd gear, and described second gear is connected with thermometer dial plate; Described 3rd gear is connected with valve.
The utility model additionally provides a kind of temperature regulator, comprise and control baffle plate, conical gear and temperature sensor as above, described temperature sensor is installed on and fills in the container of liquid, the input shaft of described conical gear is connected with the push rod of described temperature sensor, the output shaft of described conical gear is connected with described control baffle plate, the position of described control baffle plate is corresponding with the water delivering orifice of described container, and described control baffle plate is provided with tap hole.
Compared with prior art, the temperature sensor tool that the utility model provides has the following advantages:
1. the temperature sensor that provides of the utility model is without the need to extra power source, can use in without electric situation;
2. can also use in the conducting solutions such as water or airtight rugged surroundings;
3. measuring tempeature is accurate, does not affect by internal and external environment, as: weather, dust etc.;
4. utilize the physical principle of material and mechanical hook-up to realize temperature survey, not fragile, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the temperature sensor of the utility model one embodiment;
Fig. 2 is the structural representation of ball screw in the temperature sensor of the utility model one embodiment;
Fig. 3 is the structural representation of the temperature regulator of the utility model one embodiment.
In figure: 10-temperature sensor, 11-metal shell, 12-piston, 13-temperature-sensitive paraffin, 14-oil or water, 15-push rod, 16-position limiting slide block, 17-flow orifice;
20-ball screw, 21-push rod, 22-sleeve, 23-ball;
30-conical gear, 40-control baffle plate, 41-tap hole, 50-container, 51-water delivering orifice.
Embodiment
In order to the technical scheme of the above-mentioned utility model of more detailed statement, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.
The temperature sensor 10 that the utility model provides, as shown in Figure 1, comprise metal shell 11, a piston 12 is provided with in described metal shell 11, described metal shell 11 is divided into the first mutually isolated chamber and the second chamber by described piston 12, be filled with temperature-sensitive paraffin 13 in described second chamber, be provided with push rod 15 in described first chamber, described push rod 15 stretches out described metal shell 11 through described first chamber.In the present embodiment, described metal shell 11 is copper pipe, when ambient temperature changes, described temperature-sensitive paraffin 13, due to principle of expanding with heat and contracting with cold, expands when being heated, and extrudes from promoting the direction of piston 12 to the first chamber, and the pressure in the first chamber increases, thus promotion push rod 15 outwards slides; Upon a drop in temperature, temperature-sensitive paraffin 13 volume-diminished, the atmospheric pressure outside whole metal shell 11 promotes push rod 16 and inwardly slides, and promotes piston 12 movable to the direction of the second chamber simultaneously.
It should be noted that, due to the physical expansion characteristic that material is intrinsic, the displacement of temperature variation and described push rod 15, has clear and definite linear relationship.
The volume thermal expansion coefficient formula of object is as follows:
And the volume thermal expansion coefficient of paraffin is 0.76 (10
-3/ K), namely temperature often changes 1 DEG C, volume change 0.76 × 10
-3.
Particularly, the principal ingredient of described temperature-sensitive paraffin 13 is alkane, the change producing volume with temperature variation is changed by intermolecular distance and causes, isoparaffin expansivity is generally lower than the n-alkane of same carbon number, because paraffin has the large characteristic of volume change in phase transition process, so obtain the temperature-sensitive paraffin 13 of required phase transition temperature interval usually through the allotment of the different paraffin of several fusing point.
Preferably, in order to strengthen the susceptibility of temperature-sensitive paraffin 13 pairs of heat trnasfer, metal powder can be added in temperature-sensitive paraffin 13, as copper powders, although the expansivity of the interpolation of metal powder to paraffin compound substance has certain influence, the expansion characteristics of paraffin compound substance can not be changed.
Please emphasis with reference to figure 1, in the present embodiment, described metal shell 11 is columned housing, and the length of the first chamber is l, and the length of the second chamber is L, and diameter is D, then the initial volume V of temperature-sensitive paraffin 13
0for (D/2)
2× π × L, when described temperature-sensitive paraffin 13 expanded by heating, radius D/2 cannot change, so namely the change of volume shows as the change of the length L of the second chamber.If the length L loading temperature-sensitive paraffin 13 in metal shell 11 is 100mm, when volume change 1%, its length variations △ L is 1mm.
Preferably, in order to make above-mentioned length variations △ L more obvious, inner cylinder structure can be added, i.e. extend oil or water 14 in described first chamber, because in figure, the volume of left side oil or water 14 is acted upon by temperature changes less, compared with temperature-sensitive paraffin 13, can ignore, therefore, the volume change of temperature-sensitive paraffin 13 is first converted into the length variations △ L of the second chamber, finally be converted into the length variations △ l in extended or retracted first chamber of push rod 15, so according to following formula during L change:
(D/2)
2× π × △ L=(d/2)
2× π × △ l, wherein d is the diameter of push rod 15,
Obtain △ l/ △ L=(D/d)
2, that is, when the diameter d of push rod 15 is 1/5 of the diameter D of metal shell 11, the displacement energy of push rod 15 amplifies 25 times, and namely the expansion displacement change of 1mm occurs temperature-sensitive paraffin 13, and the change in displacement transferred on push rod 15 is 25mm.
Although temperature-sensitive paraffin 13 Percent expansion is at different temperatures inconsistent, the expansivity of its different temperatures is changeless, namely can realize the corresponding specific displacement of specific temperature, and due to the amplification of displacement, increases the susceptibility of temperature.
Preferably, please continue to refer to Fig. 1, one end of described push rod 15 is fixed with position limiting slide block 16, and described position limiting slide block 16 is limited in described first chamber, and can slide along straight line direction, push rod 15 can successfully linearly be slided in the first chamber, preferably, described position limiting slide block 16 is provided with some flow orifices 17, after avoiding position limiting slide block 16 to slide in the first chamber, cause the pressure of position limiting slide block 16 both sides different, and then affect the accuracy of temperature sensor.
Preferably, one end that described push rod 15 stretches out described metal shell 11 is connected with force transfering device, so that other power transfer mode such as torsion or horizontal shift is changed in lower for the different temperatures impact different straight-line displacement produced, thus realizes each function.In the present embodiment, described force transfering device is ball screw 20, please emphasis with reference to figure 2, described ball screw 20 comprises push rod 21, sleeve 22 and ball 23, with the first helical guideway outside described push rod 21, with the second helical guideway inside described sleeve 22, described first helical guideway and the second helical guideway form complete track, described ball 23 is limited in described track, and described push rod 15 is fixedly connected with one end of described push rod 21.Particularly, the rectilinear motion of the push rod 21 with the first helical guideway drives ball 23 to rotate in orbit, thus band moving sleeve 22 rotates, and sleeve 22 holding position in rotary course is constant, thus realize the change of mode of motion, rectilinear motion, change into rotary motion.
Preferably, sleeve 22 can also connect the second gear and the 3rd gear, particularly, described sleeve 22 outside is with the first gear, described first gear engages respectively with the second gear, the 3rd gear, described second gear is connected with thermometer dial plate, under turning effort, can watch the temperature of testee in real time; Described 3rd gear is connected with valve, and described valve is control and regulation device, at different temperatures, can the closedown of automatic regulating switch size or switch, realize the automatic control of temperature.Certainly, described push rod 21 directly can connect temperature protection switch, and when dut temperature reaches dangerous temperature, push rod 21 moves along a straight line, and promotes temperature protection switch, makes down circuitry, shield.
The utility model additionally provides a kind of temperature regulator, please emphasis with reference to figure 3, comprise and control baffle plate 40, conical gear 30 and temperature sensor 10 as above, described temperature sensor 10 is installed on and fills in the container 50 of liquid, the input shaft of described conical gear 30 is connected with the push rod 15 of described temperature sensor 10, the output shaft of described conical gear 30 is connected with described control baffle plate 40, the position of described control baffle plate 40 is corresponding with the water delivering orifice 51 of described container 50, and described control baffle plate 40 is provided with tap hole 41.Described temperature sensor 10 is installed on and fills in the container 50 of liquid, when the fluid temperature in container 50 changes, there is the displacement of vertical direction in the push rod 15 of temperature sensor 10, under the effect of conical gear 30, the motion of vertical direction is converted to the displacement of horizontal direction, and then promotion control baffle plate 40 moves, when the water delivering orifice 51 controlling the tap hole 41 on baffle plate 40 and described container 50 just to the time in of corresponding liquid in container 50 just by, that is, can only in specific range of temperatures, liquid just by, allow the range wide W=W1+W2 passed through, wherein, W1 is the width of tap hole 41, W2 is the width of water delivering orifice 51, thus realize the control of intelligentized temperature, under can be used for implementing protection or particular surroundings.
In sum, the temperature sensor that the utility model provides and temperature regulator, described temperature sensor 10 comprises metal shell 11, a piston 12 is provided with in described metal shell 11, described metal shell 11 is divided into the first mutually isolated chamber and the second chamber by described piston 12, be filled with temperature-sensitive paraffin 13 in described second chamber, be provided with push rod 15 in described first chamber, described push rod 15 stretches out described metal shell 11 through described first chamber.The utility model utilizes the principle of expanding with heat and contracting with cold of temperature-sensitive paraffin 13, when catching a cold or be heated, volume changes, and the change in displacement that the volume change of temperature-sensitive paraffin 13 is converted into push rod 15 the most at last exports, the utility model adopts Material Physics principle and mechanical hook-up, not by the impact of internal and external environment, and not fragile.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. a temperature sensor, it is characterized in that, comprise metal shell, a piston is provided with in described metal shell, described metal shell is divided into the first mutually isolated chamber and the second chamber by described piston, be filled with temperature-sensitive paraffin in described second chamber, be provided with push rod in described first chamber, described push rod stretches out described metal shell through described first chamber.
2. temperature sensor as claimed in claim 1, is characterized in that, be mixed with metal powder in described temperature-sensitive paraffin.
3. temperature sensor as claimed in claim 1, it is characterized in that, one end of described push rod is fixed with position limiting slide block, and described position limiting slide block is limited in described first chamber, and can slide along straight line direction.
4. temperature sensor as claimed in claim 3, it is characterized in that, described position limiting slide block is provided with some flow orifices.
5. temperature sensor as claimed in claim 1, is characterized in that, be filled with oil or water in described first chamber.
6. temperature sensor as claimed in claim 1, it is characterized in that, one end that described push rod stretches out described metal shell is connected with force transfering device.
7. temperature sensor as claimed in claim 6, it is characterized in that, described force transfering device is ball screw.
8. temperature sensor as claimed in claim 7, it is characterized in that, described ball screw comprises push rod, sleeve and ball, with the first helical guideway outside described push rod, with the second helical guideway inside described sleeve, described first helical guideway and the second helical guideway form complete track, and described ball is limited in described track, and described push rod is fixedly connected with one end of described push rod.
9. temperature sensor as claimed in claim 8, it is characterized in that, also comprise the second gear and the 3rd gear, described sleeve is outside with the first gear, described first gear engages respectively with the second gear, the 3rd gear, and described second gear is connected with thermometer dial plate; Described 3rd gear is connected with valve.
10. a temperature regulator, it is characterized in that, comprise and control baffle plate, conical gear and the temperature sensor according to any one of claim 1 ~ 9, described temperature sensor is installed on and fills in the container of liquid, the input shaft of described conical gear is connected with the push rod of described temperature sensor, the output shaft of described conical gear is connected with described control baffle plate, and the position of described control baffle plate is corresponding with the water delivering orifice of described container, and described control baffle plate is provided with tap hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438102.7U CN204064484U (en) | 2014-08-05 | 2014-08-05 | A kind of temperature sensor and temperature regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438102.7U CN204064484U (en) | 2014-08-05 | 2014-08-05 | A kind of temperature sensor and temperature regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064484U true CN204064484U (en) | 2014-12-31 |
Family
ID=52205972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420438102.7U Withdrawn - After Issue CN204064484U (en) | 2014-08-05 | 2014-08-05 | A kind of temperature sensor and temperature regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111125A (en) * | 2014-08-05 | 2014-10-22 | 苏州路之遥科技股份有限公司 | Temperature sensor and temperature regulator |
| CN107101736A (en) * | 2017-06-08 | 2017-08-29 | 南京航空航天大学 | Temperature-detecting device |
-
2014
- 2014-08-05 CN CN201420438102.7U patent/CN204064484U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111125A (en) * | 2014-08-05 | 2014-10-22 | 苏州路之遥科技股份有限公司 | Temperature sensor and temperature regulator |
| CN104111125B (en) * | 2014-08-05 | 2017-04-12 | 苏州路之遥科技股份有限公司 | Temperature sensor and temperature regulator |
| CN107101736A (en) * | 2017-06-08 | 2017-08-29 | 南京航空航天大学 | Temperature-detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |