CN2133138Y - Electronic constant temp. heating unit with double protection for aquatic animals box - Google Patents
Electronic constant temp. heating unit with double protection for aquatic animals box Download PDFInfo
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- CN2133138Y CN2133138Y CN 92239076 CN92239076U CN2133138Y CN 2133138 Y CN2133138 Y CN 2133138Y CN 92239076 CN92239076 CN 92239076 CN 92239076 U CN92239076 U CN 92239076U CN 2133138 Y CN2133138 Y CN 2133138Y
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- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model relates to an electronic constant temperature heating unit with double protection for an aquatic animals box. A heating segment is composed of the outer casing of a heating pipe, an electric heater and a heat conducting and insulating material filler, wherein, the bottom of the outer casing is sealed; the outer casing is made of a hollow metal pipe; the electric heater is fixed in the outer casing through a temperature resistance supporting frame; the heat conducting and insulating material filler is filled into the pipe cavity between the outer casing and the electric heater. A temperature sensing segment is composed of a temperature sensing pipe and a temperature sensor arranged in the temperature sensing pipe. A controller is composed of a casing, an electronic control circuit board installed in the casing and components. The controller is connected with the temperature sensing segment via the connecting sleeve hole of the controller, and the temperature sensing segment is hermetically connected with the heating segment to form an integral structure. The electric heater, the temperature sensor and the components of the controller are electrically connected with each other. The utility model has the advantages of rapid and uniform heating, long service life of the heater, no crack of the pipe body, accurate water temperature sensing, accurate and reliable temperature control, compact structure, flexible and convenient operation and secondary overtemperature protection function.
Description
The utility model relates to a kind of being used for and particularly relates to a kind of duplicate protection aquarium electronic thermostatic heater that adopts immerging metal tube heater shell structure, electronic temperature sensing constant temperature and have secondary protection function to culturing the duplicate protection aquarium electronic thermostatic heater of the aquarium water temperature automatic constant heating that pet fish uses.
Aquarium heater of the prior art, all adopt glass envelope, be built-in with ceramics bracket, on ceramics bracket, be wound with heating wire, the bimetal plate temperature controling switch of carry magnet is housed on top, after the heating wire energising, the water outside the housing is heated by glass envelope, simultaneously the bimetal leaf in the housing also temperature distortion produce reaction force to the suction of magnet, when reaching certain heat time heating time and temperature, bimetal leaf deformation power is greater than magnet suction, the electric contact of bimetal leaf is separated, cut off the electrothermal wire power, through temperature decline after a while, bimetal leaf deformation is restored, and the contact is adhesive again, the heating wire heating of switching on again, circulation keeps within the specific limits water temperature thus.Yet there is following tangible deficiency in these heaters: 1. owing to use glass envelope, make the inner heating wire and the water temperature of outside differ very big, be provided with the pipeline section of heating wire and the pipeline section of no heating wire and also have the bigger temperature difference, make canals of stilling be heated inhomogeneous and easily cause and burst, cause managing charged danger in interior water inlet, the aquarium cylinder; 2. there is bigger distance in the glass tube housing with the interior heating wire of pipe, the heat conduction path that heating wire produces can only be by the air → glass tube inwall → glass tube outer wall → water transmission in the pipe, because the thermal resistance of air and glass tube is bigger, the inside and the outside temperature difference that must cause glass tube increase, the thermic load of heater increases, and the heating wire life-span in the pipe shortens dramatically even easily causes burns; 3. make temperature detection in the pipe owing to adopt the bimetal plate temperature controling switch of contact to place, very big in the inside and outside temperature difference of pipe, outside water temperature rises very few, inner tube chamber temperature then rises very fast, must cause temperature detect switch (TDS) action ahead of time, make the frequent switch motion of electric contact, cause pitting of contact, and can't accurately control water temperature, can only play the control effect of intermittently power-on; 4. frequent switch motion, make bimetal leaf tired easily, cause deformation difference and pitting of contact, be easy to occur the phenomenon that the contact can not disjunction, make heating wire be in long-term energising, continuously water be heated, so that the situation of pet fish often take place in the boiling hot dead aquarium.
At present both at home and abroad some aquarium apparatus manufacturers are all at the problems referred to above, above-mentioned glass heats pipe is carried out all improvement, the VISA constant warm tube of producing as Italian IMQ aquarium apparatus factory, adopted quartz glass as shell, and quartz sand powder is filled in the space in pipe, make moderate progress with the big problem of pipe internal-external temperature difference to heat conduction is bad, but still breakable problem is collided in existence, and its temperature control mode is still continued to use traditional mode, fails to solve the problem of inaccurate and the malfunctioning and boiling hot dead fish of temperature control; And the electronic thermostatic heater that Haifeng county, Taiwan company produces; adopted electronic temperature sensing probe control water temperature; though solved the inaccurate problem of temperature control, the branch body structure that its structure is just separated heater, temperature detector, controller makes trouble is installed; and the device outside lead too much, more influences attractive in appearance; simultaneously do not have the overtemperature prote function yet, and only adopt audible alarm, do not have the safeguard measure of secondarily cutting heating power supply; when the overtemperature situation occurring, find, still can scald dead fish as unmanned.
The purpose of this utility model be to avoid weak point of the prior art and provide a kind of heating fast and evenly, the heater life-span is long and body does not break; energy is the sensing water temperature accurately; temperature control accurately, reliably; has secondary overtemperature prote function, compact conformation, duplicate protection aquarium electronic thermostatic heater flexible and convenient to use.
The purpose of this utility model can reach by following measure: duplicate protection aquarium electronic thermostatic heater; include the heating tube shell; electric heater; temperature detector and controller constitute; its Electronic Control structure division and frame for movement partly adopt monolithic construction; it is the heating tube shell of being made by the hollow metal pipe of bottom end seal; the electric heater that is fixed in the heating tube shell by the heatproof support reaches the heat-conducting insulation material charges formation bringing-up section that tube chamber is filled between electric heater and heating tube shell; constitute the temperature-sensitive section by temperature-sensitive pipe and installation temperature detector within it; and by housing; the electronic control circuit plate and the electric components and parts that are connected on the electronic control circuit plate that are installed in the housing constitute controller; controller housing connects trepanning by it and is connected with temperature-sensitive section upper end; temperature-sensitive section lower end and the bringing-up section upper end formation overall structure that is tightly connected, electric heater and temperature detector connect with the components and parts of controller are electric.In the bringing-up section, the heating tube shell can be to adopt the metal tube of stainless steel, copper, aluminium alloy or the antirust processing of process to make; Electric heater can be to adopt heating wire coiling on the support made from heatproof insulating material to make.
The purpose of this utility model can also reach by following measure: duplicate protection aquarium electronic thermostatic heater is provided with the clamp mechanism of being convenient to install that is used to clamp and be fixed on the aquarium.This clamp mechanism as shown in Figure 1, can be by intermediate plate (12), torque spring (10), pivot pin (11), spring carrier (9) and fixedly rubber cushion (13) constitute, fixedly rubber cushion (13) is arranged at controller housing (14) bottom outside plane, intermediate plate (12) is installed on housing (14) by pivot pin (11) and connects the trepanning lateral surface, and torque spring (10) spire is enclosed within on the pivot pin (11), an end is contained in intermediate plate (12), the other end is stuck in the spring carrier (9) that is arranged on temperature-sensitive section temperature-sensitive pipe (7) lateral surface; Its effect is to be clamped on the glass holder bar on aquarium limit with fixing use of the present utility model, fixedly the fixedly rubber cushion on rubber cushion (13) and the intermediate plate (12) works to strengthen chucking power, spring carrier (9) is used for holding up an end of torque spring (10), the clamping force that one side can be strengthened intermediate plate (12), and the torque spring (10) that fixes on the other hand also plays beautiful decoration.
The purpose of this utility model can also reach by following measure: duplicate protection aquarium electronic thermostatic heater as shown in Figure 1; its temperature-sensitive Duan Youyi section metal temperature-sensitive pipe (7), be arranged in the tube chamber temperature-sensing probe (8) and fastener (6) formation as the band heat conduction fin of temperature detector; temperature-sensitive pipe (7) is tightly connected by fastener (6) and heating tube shell (1), and in the tube chamber of this linkage section (being that temperature-sensitive pipe (7) bottom, fastener (6) and heating tube shell (1) are above last heatproof support (3)) filling heat-barrier material (5).The heat conduction fin can be the elastic heat conducting fin, and temperature-sensing probe (8) can be built-in temperature-sensing probe, temperature-sensitive element is housed in it and connects with the controller loop is electric by lead-in wire.The heat conduction fin plays conductive force on the one hand, plays a supportive role on the other hand, temperature-sensing probe (8) is supported on the inner chamber of temperature-sensitive pipe (7).
The purpose of this utility model can also reach by following measure: duplicate protection aquarium electronic thermostatic heater as shown in Figure 2, the electric connection formation of switch (25), second protection overtemperature movement device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and supply unit (20) is carried out by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating in the loop of its controller.Can adopt the second protection overtemperature device of resistance indirect heating type for second protection overtemperature movement device (26).As shown in Figure 3, this second protection overtemperature movement device (26) can be by the high-power resistance R13 that makes controllable silicon T2, the g that is parallel to T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater RW(be (2)) the temperature insurance device Ft formation of current path is provided.
The utility model is described in further detail to utilize accompanying drawing:
Fig. 1 is the structural representation of a kind of duplicate protection aquarium electronic thermostatic heater of the present utility model;
Fig. 2 is the electrical principle structure chart of a kind of duplicate protection aquarium electronic thermostatic heater of the present utility model;
Fig. 3 is the electrical structure diagram of a kind of duplicate protection aquarium electronic thermostatic heater of Fig. 2;
Fig. 4 is the electrical structure diagram of a kind of duplicate protection aquarium electronic thermostatic heater of Fig. 2.
Consist of bringing-up section by heating tube shell (1), electric heater (2), heatproof support (3) and heat-conducting insulation material charges (4) among Fig. 1; Consist of the temperature-sensitive section by heat-barrier material (5), fastener (6), temperature-sensing pipe (7) with the temperature-sensing probe (8) of heat conduction fin; By spring carrier (9), torque spring (10), pivot pin (11), intermediate plate (12) and fixedly rubber cushion (13) consist of clamp mechanism; By housing (14) and electronic control circuit plate (15) and the electric components and parts formation controller that is connected in electronic control circuit plate (15) thereof.
Carry out switch (25), the action of second protection overtemperature by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating among Fig. 2 Device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and the electric connection of supply unit (20) consist of the electric loop of controller.
Among Fig. 3 by resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14, temperature-sensing probe Rt(is (8) among Fig. 1), electric heater RW(i.e. (2) among the figure), capacitor C 1, C2 and C3, potentiometer W, diode D1, voltage-stabiliser tube DW, LED 1, LED2 and LED3, controllable silicon T1 and T2, triode BG1, integrator Ic1, Ic2 and Ic3, the electric connection of protector FU and temperature insurance device Ft consists of controller electric loop structure.
Among Fig. 4 by resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 and R17, temperature-sensing probe Rt1 and Rt2(are (8) among Fig. 1), electric heater RW(i.e. (2) among the figure), capacitor C 1, C2 and C3, potentiometer W, diode D1, D2 and D3, voltage-stabiliser tube DW, LED 1, LED2 and LED3, controllable silicon T1 and T2, triode BG1, integrator Ic1, Ic2, Ic3 and Ic4, the electric connection of protector FU and temperature insurance device Ft consists of controller electric loop structure.
The utility model is described in further detail with the following Examples:
A kind of duplicate protection aquarium electronic thermostatic heater of the present utility model as shown in Figure 3, wherein temperature control equipment (21), overtemperature prote control device (22) and temperature-sensing probe open-circuit protecting device (27) independently are made of Ic1, Ic2, Ic3 respectively; Threshold voltage setting device (23) by potentiometer W, resistance R 1, R2, R3 by being composed in series one tunnel variable voltage divider, and another routing resistance R4, R5 and temperature-sensing probe Rt are composed in series another road variable voltage divider, the first via changes each series connection node voltage by regulating W, and another road is to change by the Rt temperature sensor value of having a resistance to change each series connection node voltage; Heating is carried out switch (25) by resistance R 10, the triode BG1 of controllable silicon T1, the g that is connected in parallel on T1, the k utmost point and be connected on the c utmost point of BG1 and LED 1, R9, the b utmost point that is connected in BG1 and the resistance R 6 between the Ic1 output of the g interpolar of T1 constitute; Secondary overtemperature prote movement device (26) by the high-power resistance R13 that makes controllable silicon T2, the g that is connected in parallel on T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater RW(be (2)) the temperature insurance device Ft formation of current path is provided; Work indicating status device (28) by be connected on resistance R 7, R8 between Ic1 output and the power supply R+ line, be connected in parallel on LED 2 on the R7 and LED1, R9, LED3, R11 constitute; The a utmost point, another utmost point that electric heater (2) one utmost points meet controllable silicon T1 connect on the tie-point of Ft and R13; Supply unit (20) is made of decompression capacitor C2, discharge resistance R14, voltage-stabiliser tube DW, the diode D1 that dams, filter capacitor C3, protector FU; one road capacitance decompression, voltage-stabiliser tube voltage stabilizing be for confessing the voltage that is fit to circuit working between circuit B+ point and the negative pole D point, another road provides heating power supply and provides working power for protective device for electric heater RW by Ft.
The operation principle of above-mentioned duplicate protection aquarium electronic thermostatic heater is: integrator Ic1; Ic2; Ic3 is respectively as temperature; overtemperature prote; the detection voltage comparator of temperature-sensing probe open circuit; all has a positive input terminal; one negative input end and an output; when positive input terminal voltage is higher than negative input end; its output presents low level state; dividing point A from threshold voltage setting device (23); be connected to the positive input terminal of Ic1 and Ic2 simultaneously; dividing point B then is connected to the negative input end of Ic1; B point current potential is then determined according to the resistance that different temperature presents by Rt; if regulate W; when the current potential that A is ordered is higher than the B point; the Ic1 output will present high level; and provide a conducting electric current to BG1 by R6; BG1 conducting electric current will pass through LED1; R9 provides the control electric current of conducting for T1; the T1 conducting makes RW that water is heated; water also passes to temperature-sensing probe Rt with its temperature by temperature-sensitive pipe under water simultaneously; water temperature raises; the Rt resistance reduces; B point current potential can raise; when B point current potential during greater than A point current potential; the Ic1 output presents low level BG1 and ends; T1 also turn-offs because of triggerless control electric current; RW stops heating; when water temperature descends; the Rt resistance increases, and B point current potential has decline, and RW heats again when being lower than the A point; so circulation makes water temperature keep constant.Therefore can reach the adjusting water temperature by regulator potentiometer.
Because the positive input terminal of Ic2 also is to be connected on the A point; its negative input end then is connected on than on the low C point of B point; at Ic1 and temperature control part just often; B point current potential needs only a little higher than A point heating just to be stopped; C point current potential always is lower than the A point; the logic input terminal of Ic2 is always positive high negative low, and its output also always presents high level, and the switch T2 of secondary overtemperature prote action can not get trigger current and keeps off state.But just in case the temperature control part lost efficacy, T1 puncture etc., RW still switches on than the A point is high to make B point current potential, water temperature will continue to raise and make the Rt resistance continue to reduce, B point current potential continues to raise, and C point current potential also increases, when rising to when being higher than A point current potential, Ic2 input comparative result will make its output present low level, T2 obtains trigger current and conducting, and the indirect resistance R 13 that is connected on its a utmost point will be generated heat, and the temperature insurance device Ft that is right after thereon is heated, fusing when Ft reaches 80-140 ℃, and the power supply that cuts off R13 and RW is prevented heating, prevents the unrestricted rising of water temperature effectively.
Ic3 is the protection control of temperature-sensing probe open circuit; the interface B of its positive input termination temperature-sensing probe Rt; its negative input end then meets threshold voltage dividing potential drop output point E; no matter how W and the resistance of Rt in the normal temperature scope change when the circuit operate as normal; E point current potential is not higher than the B point, and the Ic3 output keeps presenting high level, because the Ic3 output connects with the Ic1 output is or door shutoff control; be output as high level as Ic3, then the variation of F level point is just determined by the Ic1 output.For preventing temperature-sensing probe Rt open circuit; B point current potential becomes almost nil; though electric heater heats always; but B point current potential can't raise; T1 leads together for a long time; make the constantly situation appearance of heating of RW; utilize the temperature-sensing probe open-circuit protecting device when the B point becomes almost nil, though and E point current potential is very low, but still exist certain potentials higher than the B point; Ic3 input logic comparative result is that output presents low level; this moment, no matter which kind of state Ic1 output was in, and F point current potential is low, and T1 is ended; stop the RW heating, prevented the unrestricted rising of water temperature equally.
A kind of duplicate protection aquarium electronic thermostatic heater of the present utility model as shown in Figure 4; adopted the structure of dual temperature-sensing probe, dual temperature control and overtemperature prote; use integrator Ic1, Ic3 to do dual temperature control, used integrator Ic2, Ic4 to do dual overtemperature prote control simultaneously.Owing to adopted dual temperature-sensing probe to detect; dual temperature control and overtemperature prote; temperature controlling is more reliable; the reliability of overtemperature prote also more improves; thereby cancelled the temperature-sensing probe open-circuit protecting device; and thermal light is reported to the police and overtemperature action protection grading control; if the control of the temperature of heating is not normal; water temperature raises 2-3 ℃ the time a little, and thermal light action is earlier reported to the police, and informs that in time the user fixes a breakdown; if unmanned discovery the after a period of time; temperature continues to raise and makes the secondary overtemperature protection device begin action, with temperature insurance device fusing, can avoid all needing to change the trouble of temperature insurance device like this behind overtemperature.
The utility model compared with prior art has following advantage:
(1) adopt metal tube to make the heating tube shell, adopt the heat conductive insulating charges closely to fill between inwall and the electric heater, heating is fast, and the heater life-span is long and even, and body can not break;
(2) adopt bringing-up section in lower and temperature-sensitive section in upper monolithic construction, adopt heat-insulating material to fill out isolation between two sections, greatly reduce that bringing-up section makes the temperature-sensitive section can accurately sense water temperature to the impact of temperature-sensitive section when heating;
(3) adopt the electronic controller of novel uniqueness, and adopt the high-sensitivity thermosensitive element to make temperature-sensing probe, make temperature control accurately, reliably;
(4) electronic controller adopts overtemperature alarm indication and secondary overtemperature protection device, just in case temp-controlling element is malfunctioning, can automatically with the heating circuit dump, thoroughly stop the malfunctioning phenomenon of scalding dead fish that causes of temperature control and occur;
(5) controller, temperature-sensitive section and bringing-up section is integrated, consist of overall structure, compact conformation, and adopt clamp mechanism, flexible and convenient to use.
Claims (8)
1; a kind of duplicate protection aquarium electronic thermostatic heater; include the heating tube shell; electric heater; temperature detector and controller constitute; it is characterized in that it is the heating tube shell of being made by the hollow metal pipe of bottom end seal; the electric heater that is fixed in the heating tube shell by the heatproof support reaches the heat-conducting insulation material charges formation bringing-up section that tube chamber is filled between electric heater and heating tube shell; constitute the temperature-sensitive section by temperature-sensitive pipe and installation temperature detector within it; and by housing; the electronic control circuit plate and the electric components and parts that are connected on the electronic control circuit plate that are installed in the housing constitute controller; controller housing connects trepanning by it and is connected with temperature-sensitive section upper end; temperature-sensitive section lower end and the bringing-up section upper end formation overall structure that is tightly connected, electric heater and temperature detector connect with the components and parts of controller are electric.
2, duplicate protection aquarium electronic thermostatic heater according to claim 1 is characterized in that it is provided with the clamp mechanism of being convenient to install that is used to clamp and be fixed on the aquarium.
3; duplicate protection aquarium electronic thermostatic heater according to claim 2; it is characterized in that said clamp mechanism is by intermediate plate (12); torque spring (10); pivot pin (11); spring carrier (9) and fixedly rubber cushion (13) constitute; fixedly rubber cushion (13) is arranged at controller housing (14) bottom outside plane; intermediate plate (12) is installed on housing (14) by pivot pin (11) and connects the trepanning lateral surface, and torque spring (10) spire is enclosed within on the pivot pin (11); one end is contained in intermediate plate (12); the other end is stuck in the spring carrier (9) that is arranged on temperature-sensitive section temperature-sensitive pipe (7) lateral surface.
4, duplicate protection aquarium electronic thermostatic heater according to claim 1 and 2; it is characterized in that said temperature-sensitive Duan Youyi section metal temperature-sensitive pipe (7), be arranged in the tube chamber temperature-sensing probe (8) and fastener (6) formation as the band heat conduction fin of temperature detector; temperature-sensitive pipe (7) is tightly connected by fastener (6) and heating tube shell (1), and in the tube chamber of this linkage section (being that temperature-sensitive pipe (7) bottom, fastener (6) and heating tube shell (1) are above last heatproof support (3)) filling heat-barrier material (5).
5, duplicate protection aquarium electronic thermostatic heater according to claim 4; it is characterized in that said heat conduction fin is the elastic heat conducting fin, said temperature-sensing probe (8) is built-in temperature-sensing probe, temperature-sensitive element is housed in it and connects with the controller loop is electric by lead-in wire.
6, duplicate protection aquarium electronic thermostatic heater according to claim 1 and 2 is characterized in that the electric connection formation of switch (25), second protection overtemperature movement device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and supply unit (20) is carried out by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating in the loop of said controller.
7, duplicate protection aquarium electronic thermostatic heater according to claim 6 is characterized in that said second protection overtemperature movement device (26) is the second protection overtemperature device of resistance indirect heating type.
8, duplicate protection aquarium electronic thermostatic heater according to claim 7, it is characterized in that said second protection overtemperature movement device (26) be by the high-power resistance R13 that makes controllable silicon T2, the g that is parallel to T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater RW(be (2)) the temperature insurance device Ft formation of current path is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92239076 CN2133138Y (en) | 1992-11-03 | 1992-11-03 | Electronic constant temp. heating unit with double protection for aquatic animals box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92239076 CN2133138Y (en) | 1992-11-03 | 1992-11-03 | Electronic constant temp. heating unit with double protection for aquatic animals box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133138Y true CN2133138Y (en) | 1993-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92239076 Expired - Fee Related CN2133138Y (en) | 1992-11-03 | 1992-11-03 | Electronic constant temp. heating unit with double protection for aquatic animals box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133138Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109077012A (en) * | 2018-10-15 | 2018-12-25 | 南安市方建机械科技有限公司 | A temperature control device for assisting fish fry to eat under ice in winter |
| CN109430154A (en) * | 2018-12-05 | 2019-03-08 | 航之境电子产品（天津）有限公司 | A kind of temperature control device for aquarium heating |
| CN110279281A (en) * | 2018-03-19 | 2019-09-27 | 美的集团股份有限公司 | Heating component, cup assembly and food processor |
-
1992
- 1992-11-03 CN CN 92239076 patent/CN2133138Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279281A (en) * | 2018-03-19 | 2019-09-27 | 美的集团股份有限公司 | Heating component, cup assembly and food processor |
| CN109077012A (en) * | 2018-10-15 | 2018-12-25 | 南安市方建机械科技有限公司 | A temperature control device for assisting fish fry to eat under ice in winter |
| CN109077012B (en) * | 2018-10-15 | 2021-03-09 | 广州优讯环保科技有限公司 | A temperature control device for assisting fry to eat under ice in winter |
| CN109430154A (en) * | 2018-12-05 | 2019-03-08 | 航之境电子产品（天津）有限公司 | A kind of temperature control device for aquarium heating |
| CN109430154B (en) * | 2018-12-05 | 2024-04-02 | 航之境电子产品（天津）有限公司 | Temperature control device for heating aquarium |
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