CN101433868B - Positive temperature coefficient thermistor heat element minitype heating bath pot - Google Patents
Positive temperature coefficient thermistor heat element minitype heating bath pot Download PDFInfo
- Publication number
- CN101433868B CN101433868B CN2008101363350A CN200810136335A CN101433868B CN 101433868 B CN101433868 B CN 101433868B CN 2008101363350 A CN2008101363350 A CN 2008101363350A CN 200810136335 A CN200810136335 A CN 200810136335A CN 101433868 B CN101433868 B CN 101433868B
- Authority
- CN
- China
- Prior art keywords
- temperature
- hollow insulating
- ptc
- voltage comparator
- circuit board
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Devices For Medical Bathing And Washing (AREA)
- Control Of Temperature (AREA)
Abstract
The invention relates to a micro warm bath boiler for a PTC heating element. The top end of a hollow insulating cylinder with two penetrating ends is sleeved with a metal boiler; an insulating plate, a metal heat collector and a PTC heating element in turn are positioned and closely arranged the underside of the metal boiler, and a temperature protector is arranged on the back surface clinging to the PTC heating element; a circuit board connected with correlative electric elements by conducting wires is positioned and arranged at the lower part of the hollow insulating cylinder, and the circuit board is connected with the PTC heating element, the temperature protector and a temperature sensor by the conducting wires; and a power supply socket and a bottom plate connected with the circuit board by the conducting wires are arranged at the lower part of the hollow insulating cylinder. The micro warm bath boiler adopting the PTC as a heating body has the advantages of small volume, light weight, low power consumption, flame protection, safety and reliability, can be carried by a single hand, is convenient for small articles such as injection and the like to defrost, keep constant temperature and preserve heat, and is suitable for research, medical treatment, enterprises, and laboratories.
Description
Technical field
The present invention relates to a kind of warm bath that is used for the thawing of organism, inorganic body, solid, liquid object, constant temperature, insulation, particularly a kind of positive temperature coefficient thermistor heat element minitype heating bath pot is called for short PTC element minitype temperature bath.
Background technology
The temperature bath is as being called water-bath, tepidarium, tank etc. with water again as working media, as being called oil bath pan, warm oil bath, oil groove etc. with oil again as working media, or is constant temperature bath, thermostat.
Existing temperature bath, working body volume big (hundreds of cubic centimetres are to tens thousand of cubic centimetres), power consumption big (hundreds of VA are to thousands of VA), bathe the injection of a number milliliter if need temperature, but to consume so many electric energy, obviously do not meet current energy conservation and environment protection just like " low load with strong power ", and bathed body running displacement difficulty.Hot body under the situation of " doing pot ", is easy to explosion as electrothermal tube mostly with forms such as electrothermal tube, heating wire, eddy current, utmost point discharge, PN junctions, has potential safety hazard.Temperature control method, the electronic temperature controller of using bimetal release, pressure type temperature detect switch (TDS), expansion type temperature detect switch (TDS), electronic temperature controller, PID adjuster and band PID to regulate mostly, these all make warm bath be difficult to accomplish miniaturization, and the electronic temperature controller that electronic temperature controller, PID adjuster and band PID regulate, cost an arm and a leg, be difficult to reach field＜± 1 ℃ of fluctuation of 24 hours temperature with bimetal release, pressure type temperature detect switch (TDS), its temperature control effect of expansion type temperature detect switch (TDS).
Existing temperature bath, working power single-mode: AC; 220V ± 10%, perhaps AC; 110V ± 10% is difficult to adapt to countries in the world, and the each department different electrical power just has two kinds of power supplys, 110V/220V as area in Japan.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of semistor (being called for short PTC) element minitype temperature bath, hereinafter to be referred as PTC element minitype temperature bath.
Element minitype temperature bath is convenient to the thawing of small articles such as injection, constant temperature, insulation; Be applicable to scientific research, medical treatment, enterprise, laboratory.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of positive temperature coefficient thermistor heat element minitype heating bath pot, the top of the penetrating hollow insulating concrete cylinder suit disc metal pan movingly at two ends; Below metal pan, at hollow insulating concrete cylinder inwall, location and installation insulation board, the collector metal device that temperature sensor subzero temperature thermistor is housed and semistor hot body are close to the back side of semistor hot body temperature insurance device are installed successively.At the bottom of hollow insulating concrete cylinder location and installation circuit board, on circuit board, be provided with overcurrent insurance DB, bidirectional triode thyristor SK, voltage comparator ic, transistor Q, photoelectrical coupler GE and temperature-adjusting potentiometer W; On the lateral wall of hollow insulating concrete cylinder bottom, be provided with supply socket, at the bottom of hollow insulating concrete cylinder location and installation base plate.
Described supply socket 7 is connected with the end of Temperature protection WB, and the other end of Temperature protection WB is connected with overcurrent insurance DB, and the other end of overcurrent insurance DB is connected with an end of input, resistance and the electric capacity of bidirectional triode thyristor SK; The output of bidirectional triode thyristor SK is connected with semistor PTC 11, and the control utmost point G of bidirectional triode thyristor SK is connected with photoelectric tube one end of photoelectrical coupler GE; The other end of resistance and electric capacity is connected with 1 pin of rectification full-bridge, and 2 pin of rectification full-bridge are connected with the positive source of voltage comparator ic; The positive feedback end of voltage comparator ic is connected with semistor hot body FM 5, the negative-feedback end of voltage comparator ic is connected with temperature-adjusting potentiometer W, the output of voltage comparator ic is connected with the base stage of transistor Q, and the emitter stage of transistor Q is connected with the positive pole of the luminous tube of photoelectrical coupler GE.
The invention has the beneficial effects as follows:
1. it adopts the miniature temperature bath of semistor PTC as heater, and its working body volume is about 20 cubic centimetres, and the working body Controllable Temperature is built in 40 ℃～55 ℃, and power consumption only about 15VA, has anti-flaming protection, and is safe and reliable; The subzero temperature thermistor that adopts small and exquisite cheapness is carried out temperature control as sensor with controllable silicon, electronic circuit, and its temperature control effect can reach field＜± 0.5 ℃ of fluctuation of 24 hours temperature, and working power is tolerance pattern: AC; 80V～240V adapts to countries in the world, the each department different electrical power; Miniature, quiet, safe operation have been realized.It low in energy consumption, volume is little, in light weight, and one hand is a portability, is convenient to the thawing of small articles such as injection, constant temperature, insulation, is applicable to scientific research, medical treatment, enterprise, laboratory; Thereby avoid adopting existing temperature bath, working body volume big (hundreds of cubic centimetres to tens thousand of cubic centimetres), power consumption big (hundreds of VA are to thousands of VA), for the injection of need temperature bath one number milliliter, just like " low load with strong power ", the waste electric energy; And the small articles that the needs temperature is bathed to be delivered to the unit with existing temperature bath, and wait in line to arrange, very inconvenient.
2. temperature insurance device is equipped with at the back side of being close to heater, when temperature control circuit because of certain reason when out of control, when the PTC temperature rises to Temperature protection WB demarcation temperature, Temperature protection WB opens circuit at once, the loop of cutting off the electricity supply, thereby avoid the too high disaster hidden-trouble that causes of Yin Wendu, guarantee the safe operation of warm bath.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the electrical principle schematic diagram of PTC element minitype temperature bath.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment 1 is as shown in Figure 1, 2: a kind of PTC element minitype temperature bath, the top of the penetrating hollow ambroin cylinder 6 suit disc metal pan 2 movingly at two ends is as the thawing of object, constant temperature, cool-bag.Below metal pan 2, at hollow ambroin cylinder 6 inwalls, successively location and installation insulation board 3, the collector metal device 4 of temperature sensor subzero temperature thermistor PTC 11 is housed and heats object, carry out adjustment and temperature controlled PTC hot body 5, be close to the back side of PTC hot body 5 temperature insurance device 10 be installed.At the bottom of hollow insulating concrete cylinder 6 location and installation circuit board 9, on circuit board 9, be provided with overcurrent insurance DB, bidirectional triode thyristor SK, voltage comparator ic, transistor Q, photoelectrical coupler GE and temperature-adjusting potentiometer W; On the lateral wall of hollow insulating concrete cylinder 6 bottoms, be provided with supply socket 7, at the bottom of hollow insulating concrete cylinder 6 location and installation base plate 8.
Described supply socket 7 is connected with the end of Temperature protection WB, and the other end of Temperature protection WB is connected with overcurrent insurance DB, and the other end of overcurrent insurance DB is connected with an end of input, resistance and the electric capacity of bidirectional triode thyristor SK; The output of bidirectional triode thyristor SK is connected with semistor PTC 11, and the control utmost point G of bidirectional triode thyristor SK is connected with photoelectric tube one end of photoelectrical coupler GE; The other end of resistance and electric capacity is connected with 1 pin of rectification full-bridge, and 2 pin of rectification full-bridge are connected with the positive source of voltage comparator ic; The positive feedback end of voltage comparator ic is connected with semistor hot body FM 5, the negative-feedback end of voltage comparator ic is connected with temperature-adjusting potentiometer W, the output of voltage comparator ic is connected with the base stage of transistor Q, and the emitter stage of transistor Q is connected with the positive pole of the luminous tube of photoelectrical coupler GE.
Power supply insures DB, Temperature protection WB through overcurrent, enters bidirectional triode thyristor SK and is connected with PTC, and whether PTC has electric current to pass through, heating up, depend on whether conducting of bidirectional triode thyristor SK, and whether conducting of bidirectional triode thyristor SK depends on again whether the control utmost point G of bidirectional triode thyristor SK has Continuity signal.
IC is a voltage comparator among Fig. 3, and W is the temperature setting, and F is the voltage setting.Initial, entire circuit rigidly connects energize, is installed in the temperature sensor subzero temperature thermistor FM on heat collector 4 (see figure 1)s, the temperature that is provided with in W at the bottom of the temperature of being experienced, FM presents higher resistance value, and the Z point voltage is higher than the F point voltage, the O point presents high potential, transistor Q conducting, the built-in LED of photoelectrical coupler GE is luminous, the photoelectric tube conducting that GE is built-in, signal enters the control utmost point G of bidirectional triode thyristor SK, the SK conducting, PTC is by electric current, heating up.
Along with temperature raises, be installed in the temperature sensor subzero temperature thermistor FM on the heat collector 4, the temperature of being experienced reaches the temperature that W is provided with, the resistance value of FM lowers thereupon, the Z point voltage is lower than the F point voltage, and the O point presents electronegative potential, and transistor Q ends, the built-in LED of photoelectrical coupler GE is dark, the built-in photoelectric tube of GE ends, and the control utmost point G of bidirectional triode thyristor SK does not have Continuity signal, and SK ends, the PTC current cut-off stops heating.
Temperature protection WB, be to be close to the back mounted (see figure 1) of PTC, when temperature control circuit because of certain reason when out of control, when the PTC temperature rises to Temperature protection WB demarcation temperature, Temperature protection WB opens circuit at once, the loop of cutting off the electricity supply, thus the too high disaster hidden-trouble that causes of Yin Wendu avoided, guarantee the safe operation of warm bath.
Claims (1)
1. positive temperature coefficient thermistor heat element minitype heating bath pot, it is characterized in that: the top of penetrating hollow insulating concrete cylinder (6) suit disc metal pan (2) movingly at two ends, below metal pan (2), at hollow insulating concrete cylinder (6) inwall, location and installation insulation board (3), the collector metal device (4) that temperature sensor subzero temperature thermistor PTC (11) is housed and semistor hot body FM (5) are close to the back side of semistor hot body FM (5) temperature insurance device FM (10) are installed successively; At the bottom of hollow insulating concrete cylinder (6) location and installation circuit board (9), on circuit board (9), be provided with overcurrent insurance (DB), bidirectional triode thyristor (SK), voltage comparator (IC), transistor (Q), photoelectrical coupler (GE) and temperature-adjusting potentiometer (W); On the lateral wall of hollow insulating concrete cylinder (6) bottom, be provided with supply socket (7), at the bottom of hollow insulating concrete cylinder (6) location and installation base plate (8);
Described supply socket (7) is connected with an end of Temperature protection (WB), and the other end of Temperature protection (WB) is connected with overcurrent insurance (DB), and the other end of overcurrent insurance (DB) is connected with an end of input, resistance and the electric capacity of bidirectional triode thyristor (SK); The output of bidirectional triode thyristor (SK) is connected with semistor PTC (11), and the control utmost point (G) of bidirectional triode thyristor (SK) is connected with photoelectric tube one end of photoelectrical coupler (GE); The other end of resistance and electric capacity is connected with 1 pin of rectification full-bridge, and 2 pin of rectification full-bridge are connected with the positive source of voltage comparator (IC); The positive feedback end of voltage comparator (IC) is connected with semistor hot body FM (5), the negative-feedback end of voltage comparator (IC) is connected with temperature-adjusting potentiometer (W), the output of voltage comparator (IC) is connected with the base stage of transistor (Q), and the emitter stage of transistor (Q) is connected with the positive pole of the luminous tube of photoelectrical coupler (GE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101363350A CN101433868B (en) | 2008-12-02 | 2008-12-02 | Positive temperature coefficient thermistor heat element minitype heating bath pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101363350A CN101433868B (en) | 2008-12-02 | 2008-12-02 | Positive temperature coefficient thermistor heat element minitype heating bath pot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101433868A CN101433868A (en) | 2009-05-20 |
| CN101433868B true CN101433868B (en) | 2011-01-05 |
Family
ID=40708596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101363350A Expired - Fee Related CN101433868B (en) | 2008-12-02 | 2008-12-02 | Positive temperature coefficient thermistor heat element minitype heating bath pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101433868B (en) |
-
2008
- 2008-12-02 CN CN2008101363350A patent/CN101433868B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101433868A (en) | 2009-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205755246U (en) | A kind of AC DC power module | |
| CN202097479U (en) | Intelligent, inductive, rapid heating, temperature controlled, thermal insulation and energy saving electric iron holder | |
| CN201542425U (en) | Drinking fountain controlled by infrared sensor | |
| CN101433868B (en) | Positive temperature coefficient thermistor heat element minitype heating bath pot | |
| CN202819414U (en) | Self-heating electric heating mosquito killer | |
| CN201308842Y (en) | Miniature temperature bath pot for positive temperature coefficient thermistor heating element | |
| CN202101298U (en) | Embedded electric ceramic heater | |
| CN201036495Y (en) | Power-saving electric heating pot | |
| CN201638044U (en) | Low-noise electrical controller for water heating mattress | |
| CN203323240U (en) | Intelligent electric firebox capable of being controlled in wireless remote manner and heating in balanced manner | |
| CN201060423Y (en) | Temperature-limiting device for heater of ceramic cooker | |
| CN205139738U (en) | Simple and easy type is circuit because thermistor automatic control wen ke of silicon controlled rectifier adjusts temperature | |
| CN203687188U (en) | Intelligent controller of electric heater | |
| CN201008479Y (en) | Electrothermal blanket | |
| CN203163152U (en) | Overheating protection device and humidifier thereof | |
| CN210153915U (en) | Electromagnetic induction heating type foot warmer | |
| CN204618548U (en) | A kind of film heating health-care physical therapy instrument | |
| CN204693573U (en) | A kind of carbon fiber heating plate is drawn | |
| CN2629597Y (en) | Constant-temp milk-mixing device | |
| CN100521831C (en) | Temperature limiter of ceramic cooking ware heater | |
| CN205119496U (en) | Multi -functional phase change energy storage device of induction type | |
| CN201339991Y (en) | Temperature controller | |
| CN207862657U (en) | A kind of temperature control iron board | |
| CN205878309U (en) | Superconductive heater of intelligence electric heat | |
| CN102525724A (en) | Foot warmer capable of automatically controlling temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |