CN209859870U - Probe type temperature controller - Google Patents
Probe type temperature controller Download PDFInfo
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- CN209859870U CN209859870U CN201822246772.XU CN201822246772U CN209859870U CN 209859870 U CN209859870 U CN 209859870U CN 201822246772 U CN201822246772 U CN 201822246772U CN 209859870 U CN209859870 U CN 209859870U
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- bimetallic strip
- elastic sheet
- temperature
- lower elastic
- adjusting
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Abstract
The utility model discloses a probe type temperature controller, which comprises a temperature sensing tube, a heat conducting cover, a screw rod, a porcelain ring, a bimetallic strip, porcelain beads, an upper elastic sheet, a lower elastic sheet, a fixed contact, a movable contact and an adjusting mechanism, wherein the bottom of the bimetallic strip is abutted against the heat conducting cover, the heat conducting cover is provided with a clamping part which symmetrically extends downwards, and the temperature sensing tube is connected with the heat conducting cover through the clamping part; the adjusting mechanism is used for adjusting the downward pressure of the upper elastic sheet and the lower elastic sheet; the ceramic beads are arranged between the bimetallic strip and the upper and lower elastic sheets and used for transmitting the thrust of the bimetallic strip to the upper and lower elastic sheets; the screw rod penetrates from the upper part of the temperature controller, penetrates through the ceramic ring to be connected with the heat conduction cover, and fixes the heat conduction cover and the bimetallic strip. Adopt the utility model discloses, the temperature sensing pipe of temperature controller can stretch into the dish that generates heat inside, and the core temperature of dish that generates heat is generated in real-time perception, and then accurate accuse temperature, reduces the first towards temperature of electrical apparatus, and the assembly is convenient, low in production cost.
Description
Technical Field
The utility model relates to a temperature controller especially relates to a probe formula temperature controller.
Background
The temperature controller is an electronic device which controls the on-off of the circuit according to the temperature. Because the bimetallic strip in the temperature controller is used as a judgment index by detecting the temperature of the ambient air or objects, the temperature rise of the ambient air or the objects has hysteresis in the temperature rise process of the heating body. Under the influence, when the temperature controller reaches the control temperature, the heating body often exceeds the preset temperature, and the condition is particularly obvious when the heating body initially works. And peripheral components are easily damaged due to overheating after the temperature exceeds the preset temperature.
Temperature controllers with temperature sensing rods are also available on the market, the temperature sensing rods of the temperature controllers are fixed in a temperature controller body, the temperature sensing rods consist of metal rod bodies and nickel rods arranged in the rod bodies, and the temperature controllers adopting the structure have high assembly cost and cannot be flexibly configured with different temperature sensing rods according to requirements; moreover, the temperature of the measured object is transferred into the nickel rod from the metal rod body, and a heat compensation device is difficult to be additionally arranged.
Disclosure of Invention
The utility model aims to solve the technical problem that a probe formula temperature controller is provided, but the core temperature of real-time perception dish that generates heat, and then accurate accuse temperature reduces the electrical apparatus head and dashes the temperature, and the assembly is convenient, low in production cost.
In order to solve the technical problem, the utility model provides a probe type temperature controller, which comprises a temperature sensing tube, a heat conducting cover, a screw rod, a porcelain ring, a bimetallic strip, porcelain beads, an upper spring plate, a lower spring plate, a fixed contact, a movable contact and an adjusting mechanism, wherein the bottom of the bimetallic strip is abutted against the heat conducting cover, the heat conducting cover is provided with a clamping part which symmetrically extends downwards, and the temperature sensing tube is connected with the heat conducting cover through the clamping part; the bimetallic strip, the upper elastic sheet, the lower elastic sheet and the adjusting mechanism are sequentially arranged from bottom to top and are electrically isolated by ceramic rings; the lower parts of the upper and lower elastic sheets are provided with movable contacts, and fixed contacts are fixedly arranged right below the movable contacts; the adjusting mechanism is used for adjusting the downward pressure of the upper elastic sheet and the lower elastic sheet; the ceramic beads are arranged between the bimetallic strip and the upper and lower elastic sheets and used for transmitting the thrust of the bimetallic strip to the upper and lower elastic sheets; the screw rod penetrates from the upper part of the temperature controller, penetrates through the ceramic ring to be connected with the heat conduction cover, and fixes the heat conduction cover and the bimetallic strip.
As an improvement of the above scheme, the device further comprises a first connecting terminal and a second connecting terminal, wherein the first connecting terminal is connected with a fixed contact piece through an iron gasket, and the fixed contact piece is provided with the fixed contact; and a thermal compensation wire is also connected in parallel between the first connecting terminal and the fixed contact piece.
As a modification of the above, the thermal compensation wire is disposed above or below the bimetal at a predetermined distance.
As an improvement of the above scheme, the clamping portion of the heat conducting cover is arc-shaped.
As an improvement of the above scheme, the adjusting mechanism comprises an adjusting rod, a pressing plate and an adjusting head, the adjusting rod is arranged on the pressing plate and can rotate relative to the pressing plate, and the adjusting head is fixedly connected with the adjusting rod and is simultaneously abutted against the upper elastic sheet and the lower elastic sheet; the adjusting rod rotates relative to the pressing plate, so that the adjusting head moves up and down to adjust the downward force applied to the upper elastic sheet and the lower elastic sheet.
As an improvement of the scheme, the adjusting rod is fixedly provided with a limiting plate, and the pressing plate is provided with a limiting convex block extending upwards.
In an improvement of the above, the temperature sensing tube is a hollow tube, and a conical portion is provided at an end thereof.
As an improvement of the scheme, the screw, the heat conducting cover and the temperature sensing pipe are coaxially arranged.
Implement the utility model discloses, following beneficial effect has:
adopt the scheme that this application provided, the temperature sensing pipe of temperature controller can stretch into the dish that generates heat inside, and the real-time perception generates heat the core temperature of dish, and then accurate accuse temperature reduces the first temperature that dashes of electrical apparatus, and the assembly is convenient, low in production cost.
And a thermal compensation wire is also connected in parallel between the first connecting terminal and the fixed contact piece and is arranged at a preset distance above the bimetallic strip. As long as the heating element in the electric appliance starts to work, the thermal compensation wire is electrified and shunted with the iron washer to generate certain heat, and air near the bimetallic strip is heated in advance, so that control delay caused by heat transfer of a heating source is compensated. In addition, due to the existence of the thermal compensation wire, the heat around the bimetallic strip can be quickly compensated, so that the precision of maintaining the temperature is improved, the temperature curve of the heating body is more stable, and the temperature control is more accurate.
Drawings
Fig. 1 is a front view of a probe type temperature controller of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a top view of the probe type temperature controller of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
As shown in fig. 1-3, an embodiment of the present invention provides a probe type temperature controller, which includes a temperature sensing tube 1, a heat conducting cover 2, a screw 3, a ceramic ring 4, a bimetallic strip 5, a ceramic bead 6, upper and lower elastic sheets 7, a fixed contact 8, a movable contact 9 and an adjusting mechanism, wherein the bottom of the bimetallic strip 5 is abutted to the heat conducting cover 2, the heat conducting cover 2 has a clamping portion 21 extending downward symmetrically, and the temperature sensing tube 1 is connected to the heat conducting cover 2 through the clamping portion 21; the bimetallic strip 5, the upper elastic sheet 7, the lower elastic sheet 7 and the adjusting mechanism are sequentially arranged from bottom to top, and are electrically isolated by the ceramic ring 4; the lower part of the upper spring plate 7 and the lower spring plate 7 are provided with a movable contact 9, and a fixed contact 8 is fixedly arranged right below the movable contact 9; the adjusting mechanism is used for adjusting the downward pressure of the upper elastic sheet 7 and the lower elastic sheet 7; the porcelain beads 6 are arranged between the bimetallic strip 5 and the upper and lower elastic sheets 7 and are used for transmitting the thrust of the bimetallic strip 5 to the upper and lower elastic sheets 7; the central part of the heat conduction cover 2 is provided with a connecting hole, the screw rod 3 penetrates from the upper part of the temperature controller, penetrates through the ceramic ring 4 to be connected with the connecting hole of the heat conduction cover 2, and fixes the heat conduction cover 2 and the bimetallic strip 5.
Adopt the scheme that this application provided, the temperature sensing pipe 1 of temperature controller can stretch into the dish that generates heat inside, and the real-time perception generates heat the core temperature of dish, and then accurate accuse temperature, reduces the first temperature that dashes of electrical apparatus, and the assembly is convenient, low in production cost. In addition, due to the existence of the thermal compensation wire, the heat around the bimetallic strip can be quickly compensated, so that the precision of maintaining the temperature is improved, the temperature curve of the heating body is more stable, and the temperature control is more accurate.
The temperature controller also comprises a first connecting terminal 10 and a second connecting terminal 11, wherein the first connecting terminal 10 is connected with a fixed contact piece 13 through an iron gasket 12, and the fixed contact piece 13 is provided with the fixed contact 8; a thermal compensation wire 14 is connected in parallel between the first connection terminal 10 and the fixed contact piece 13. The thermal compensation wire 14 is disposed above or below the bimetal 5 by a predetermined distance.
Preferably, the clamping portion 21 of the heat conductive cover 2 is circular arc-shaped. The temperature sensing tube 1 is inserted into the middle of the holding portion 21, and the temperature sensing tube 1 is fixed by the holding force generated by the holding portion 21. After the assembly is completed, if the temperature sensing pipes 1 of different types need to be replaced, the corresponding temperature sensing pipe 1 can be replaced by pulling the temperature sensing pipe out with force, and the use is flexible. Before shipment, the joint between the holder 21 and the temperature-sensitive tube 1 may be spot-welded to reinforce the joint. The heat of the temperature sensing tube 1 is mainly transferred to the heat conductive cover 2 through the clamping portion 21, and then transferred from the heat conductive cover 2 to the bimetal 5.
Preferably, the adjusting mechanism comprises an adjusting rod 15, a pressing plate 16 and an adjusting head 17, the adjusting rod 15 is arranged on the pressing plate 16 and can rotate relative to the pressing plate 16, and the adjusting head 17 is fixedly connected with the adjusting rod 15 and is abutted to the upper elastic sheet 7 and the lower elastic sheet 7 at the same time; the adjusting lever 15 rotates relative to the pressing plate 16, so that the adjusting head 17 moves up and down to adjust the downward pressure applied to the upper and lower resilient plates 7.
Preferably, a limiting plate 18 is fixedly arranged on the adjusting rod 15, and a limiting bump 19 extending upwards is arranged on the pressing plate 16. When the adjusting lever 15 rotates, the limiting plate 18 rotates synchronously, and when the limiting plate 18 rotates to a certain angle, the limiting plate is blocked by the extending limiting lug 19, so that the adjusting lever 15 can only rotate to a preset angle.
Preferably, the temperature sensing tube 1 is a hollow tube, and a conical portion is provided at a distal end thereof. The hollow part of the temperature sensing tube 1 is sealed by the heat conducting cover 2, and the air in the temperature sensing tube 1 can not convect with the outside, thereby being capable of assisting heat transfer.
Preferably, the screw 3, the heat conducting cover 2 and the temperature sensing pipe 1 are coaxially arranged. By applying the structure, the temperature sensing tube 1 and the heat conducting cover 2 can be independently installed after the temperature controller is assembled, so that the assembly is more flexible; the screw 3 is connected with the heat conducting cover 2 and the bimetallic strip 5 and also used as a heat transfer medium to increase the heat transfer effect.
The working principle of the application is as follows:
take temperature sensing of an electric appliance having a heating plate such as an electric cooker. Firstly, a hole is punched on the heating plate, and the temperature sensing tube 1 is inserted into the hole in the heating plate to reach the position of the heating wire. When the heater during operation, heat transmits heating disc and temperature sensing pipe 1 simultaneously, and temperature sensing pipe 1 is with heat transfer to heat conduction lid 2, because heat conduction lid 2 and bimetallic strip 5 butt, can transmit bimetallic strip 5 through butt position and screw rod 3 fast. The bimetallic strip 5 is heated and bent upwards, and the upper elastic sheet 7 and the lower elastic sheet 7 are pushed by the porcelain beads 6. Under the normal temperature state, the movable contact 9 on the upper and lower elastic sheets 7 is contacted with the movable contact 9, wherein, the first connecting terminal 10 is connected with a fixed contact sheet 13 through an iron gasket 12, and the fixed contact sheet 13 is provided with the fixed contact 8; the second connecting terminal 11 is electrically connected with the fixed contact piece 13 through the upper and lower elastic pieces 7. When the upper and lower spring plates 7 are pushed up by the bimetallic strip 5 for a certain displacement, the upper and lower spring plates 7 jump suddenly to separate the movable contact 9 from the fixed contact 8, and the first connecting terminal 10 is not communicated with the second connecting terminal 11.
In order to further improve the reaction speed of the temperature controller when the electric appliance is in cold start, a thermal compensation wire 14 is connected in parallel between the first connection terminal 10 and the fixed contact piece 13, and the thermal compensation wire 14 is arranged at a predetermined distance above the bimetallic strip 5. As long as the heating element in the electric appliance starts to work, the thermal compensation wire 14 is electrified and shunted with the iron washer 12 to generate certain heat, and air near the bimetallic strip 5 is heated in advance, so that control delay caused by heat transfer of a heating source is compensated.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the invention, and these modifications and decorations are also regarded as the protection scope of the present invention.
Claims (8)
1. A probe type temperature controller is characterized by comprising a temperature sensing tube, a heat conducting cover, a screw rod, a ceramic ring, a bimetallic strip, ceramic beads, an upper elastic sheet, a lower elastic sheet, a fixed contact, a movable contact and an adjusting mechanism,
the bottom of the bimetallic strip is abutted against the heat conducting cover, the heat conducting cover is provided with clamping parts which symmetrically extend downwards, and the temperature sensing tube is connected with the heat conducting cover through the clamping parts;
the bimetallic strip, the upper elastic sheet, the lower elastic sheet and the adjusting mechanism are sequentially arranged from bottom to top and are electrically isolated by ceramic rings;
the lower parts of the upper and lower elastic sheets are provided with movable contacts, and fixed contacts are fixedly arranged right below the movable contacts;
the adjusting mechanism is used for adjusting the downward pressure of the upper elastic sheet and the lower elastic sheet;
the ceramic beads are arranged between the bimetallic strip and the upper and lower elastic sheets and used for transmitting the thrust of the bimetallic strip to the upper and lower elastic sheets;
the screw rod penetrates from the upper part of the temperature controller, penetrates through the ceramic ring to be connected with the heat conduction cover, and fixes the heat conduction cover and the bimetallic strip.
2. The probe type temperature controller of claim 1, further comprising a first connection terminal and a second connection terminal, wherein the first connection terminal is connected to a fixed contact piece through an iron washer, and the fixed contact piece is provided with the fixed contact; and a thermal compensation wire is also connected in parallel between the first connecting terminal and the fixed contact piece.
3. The probe thermostat of claim 2, wherein the thermal compensating wire is disposed above or below the bimetal at a predetermined distance.
4. The probe thermostat of claim 1, wherein the clamping portion of the heat conductive cover is arc-shaped.
5. The probe type temperature controller of claim 1, wherein the adjusting mechanism comprises an adjusting rod, a pressing plate and an adjusting head, the adjusting rod is arranged on the pressing plate and can rotate relative to the pressing plate, and the adjusting head is fixedly connected with the adjusting rod and is abutted against the upper spring plate and the lower spring plate; the adjusting rod rotates relative to the pressing plate, so that the adjusting head moves up and down to adjust the downward force applied to the upper elastic sheet and the lower elastic sheet.
6. The probe type temperature controller of claim 5, wherein a limiting plate is fixed on the adjusting rod, and a limiting protrusion extending upwards is provided on the pressing plate.
7. The probe type thermostat of claim 1, wherein the temperature sensing tube is a hollow tube having a conical portion at an end thereof.
8. The probe thermostat of claim 1, wherein the screw, the heat conductive cover and the temperature sensing tube are coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246772.XU CN209859870U (en) | 2018-12-28 | 2018-12-28 | Probe type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246772.XU CN209859870U (en) | 2018-12-28 | 2018-12-28 | Probe type temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209859870U true CN209859870U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822246772.XU Active CN209859870U (en) | 2018-12-28 | 2018-12-28 | Probe type temperature controller |
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| CN (1) | CN209859870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613643A (en) * | 2022-03-24 | 2022-06-10 | 绍兴中新电器有限公司 | Coupler with thermal compensation and application thereof |
-
2018
- 2018-12-28 CN CN201822246772.XU patent/CN209859870U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613643A (en) * | 2022-03-24 | 2022-06-10 | 绍兴中新电器有限公司 | Coupler with thermal compensation and application thereof |
| CN114613643B (en) * | 2022-03-24 | 2024-03-29 | 绍兴中新电器有限公司 | Coupler with thermal compensation and application thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528000 factory building 46, No. 88, Haitian Road, Hecheng street, Gaoming District, Foshan City, Guangdong Province (residence declaration) Patentee after: Guangdong Deqin Electric Appliance Co.,Ltd. Address before: 528000 No. 15, Ganhe Road, he Cun, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: FOSHAN DEQIN ELECTRICAL APPLIANCE CO.,LTD. |
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| CP03 | Change of name, title or address |