CN202309025U - Leakage protective foot tub - Google Patents
Leakage protective foot tub Download PDFInfo
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- CN202309025U CN202309025U CN2011203966167U CN201120396616U CN202309025U CN 202309025 U CN202309025 U CN 202309025U CN 2011203966167 U CN2011203966167 U CN 2011203966167U CN 201120396616 U CN201120396616 U CN 201120396616U CN 202309025 U CN202309025 U CN 202309025U
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Abstract
The utility model relates to the technical field of foot tubs, in particular to a leakage protective foot tub. The leakage protective foot tub adopts the technical scheme that a power supply interface, a power supply control unit, a pressure switch, a foot tub, a temperature sensor and an MCU (Micro Controller Unit) intelligent controller are comprised; a leakage protection unit is also arranged, and connected between the power supply interface and the foot tub water body of the foot tub; and the leakage protection unit consists of an auxiliary power supply, a circuit breaking unit, a detection unit, a comparison unit and an execution unit. Compared with the prior art, the leakage protection unit is arranged to detect whether an electric signal exists in the foot tub water body via the detection unit, the comparison unit is used for comparing whether the size of the detected electric signal exceeds a preset value, if yes, the compassion unit sends a signal to the execution unit, and the execution unit switches off a power supply. Therefore, the leakage protective foot tub has the characteristics that leakage can be detected at any time, the power supply is switched off when the leakage is detected, and the security of users can be ensured.
Description
Technical field
The utility model relates to the foot bath technical field, particularly relates to a kind of earth leakage protective foot bath.
Background technology
Along with the raising of quality of the life, People more and more is paid attention to the health care of health, particularly for the health care of foot.Make foot bath more and more receive people's welcome thus.
Foot bath of the prior art is generally the water power one, because human body is directly to be contacted with in the water, its safety problem is very important matter of utmost importance.The mode of heating of foot bath mainly comprises direct-type heating and indirect type heating at present.The direct-type heating is meant bathes sufficient water and a kind of mode of heating that the pyrotoxin of energising directly contacts, and all belongs to this type of like mode of heatings such as glass tube, electrothermal tube, quartz ampoule and PTC; The indirect type heating is meant that bathing sufficient water does not directly contact with the pyrotoxin of energising, transmits to realize a kind of mode of heating of heating but carry out heat through heat energy medium (like steam).
Present foot bath on the market all is the mode that adopts the direct-type heating mostly; Promptly directly use ac power supply; And its heater all be directly with foot bath in water contact; This foot bath often because of using aging or improper use causes damages, insulation decline to produce leaky, causes life-threatening accident to take place frequently.
Summary of the invention
The purpose of the utility model is to avoid weak point of the prior art and a kind of earth leakage protective foot bath is provided; This earth leakage protective foot bath is provided with residual current protective unit; But detection at any time electric leakage situation, and when finding electric leakage, in time cut off the electricity supply automatically, can guarantee user's personal safety.
The purpose of the utility model realizes through following technical scheme.
A kind of earth leakage protective foot bath; Comprise power interface, supply control unit, pressure switch, foot bath, temperature sensor and MCU intelligent controller; The heating sheet power supply output of said power interface is connected with the input of said supply control unit, and the controller power supply output of said power interface is connected with the power end of said MCU intelligent controller; The output of said supply control unit is connected with the input of said pressure switch; The output of said pressure switch is connected with the input of the foot bath heater element of said foot bath; The output of said foot bath heater element is connected with the input of said temperature sensor, and the output of said temperature sensor is connected with the sensing input of said MCU intelligent controller;
Be provided with residual current protective unit, said residual current protective unit is electrically connected between the foot bath water body of said power interface and said foot bath;
Said residual current protective unit includes accessory power supply, breaking units, detecting unit, comparing unit and performance element;
The input of said accessory power supply is connected with the output of said power interface, and the comparison power output end of said accessory power supply is connected with the input of said comparing unit, and the execution power output end of said accessory power supply is connected with the input of said performance element;
The input of said breaking units is connected with the power output end that opens circuit of said power interface, and the detection output of said breaking units is connected with the detection input of said detecting unit;
The comparison output of said detecting unit detects input with said comparing unit and is connected, and the test output terminal of said detecting unit is connected with said foot bath water body;
The output of said comparing unit is connected with the comparison input of said performance element.
Preferably; Said residual current protective unit also includes test cell; The input that opens circuit of said test cell is connected with the detection output of said breaking units; The detection output of said test cell is connected with the analog detection input of said detecting unit, and the electric signal input end of said test cell is connected with said foot bath water body.
Preferably, said test cell is set to testing button.
Preferably, said residual current protective unit is set to the current mode earth leakage circuit-breaker.
Preferably, the residue operating current of said residual current protective unit is set to 10 milliamperes, and break-time is set to be less than or equal to 0.1 second.
Preferably, the top of said foot bath heater element is coated with heat conducting film.
Preferably, the top of said heat conducting film is coated with insulating barrier.
The beneficial effect of the utility model:
The utility model is provided with residual current protective unit, and through whether having the signal of telecommunication in the detection foot bath water body, whether the size of the more detected signal of telecommunication of comparing unit surpasses preset value; If surpass preset value; Then send signal and give performance element, accomplish the action of cutting off the electricity supply by performance element, but the utility model detection at any time electric leakage situation; And when finding electric leakage, in time cut off the electricity supply automatically, can guarantee user's personal safety.
Description of drawings
Utilize accompanying drawing that the utility model is further specified, but the content in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the schematic block circuit diagram of an embodiment of a kind of earth leakage protective foot bath of the utility model.
In Fig. 1, include:
Power interface 1,
Residual current protective unit 2, accessory power supply 21, breaking units 22, detecting unit 23, comparing unit 24, performance element 25, test cell 26,
Supply control unit 3,
Pressure switch 4,
Foot bath 5, foot bath water body 51, foot bath heater element 52,
Temperature sensor 6,
MCU intelligent controller 7.
Embodiment
In conjunction with following examples the utility model is described further.
embodiment 1.
A kind of earth leakage protective foot bath of present embodiment is as shown in Figure 1; Comprise power interface 1, supply control unit 3, pressure switch 4, foot bath 5, temperature sensor 6 and MCU intelligent controller 7; The heating sheet power supply output of power interface 1 is connected with the input of supply control unit 3, and the controller power supply output of power interface 1 is connected with the power end of MCU intelligent controller 7; The output of supply control unit 3 is connected with the input of pressure switch 4; The input termination of the foot bath heater element 52 of the output of pressure switch 4 and company's foot bath 5; The output of foot bath heater element 52 is connected with the input of temperature sensor 6, and the output of temperature sensor 6 is connected with the sensing input of MCU intelligent controller 7;
Be provided with residual current protective unit 2, residual current protective unit 2 is electrically connected between the foot bath water body 51 of power interface 1 and foot bath 5;
Residual current protective unit 2 includes accessory power supply 21, breaking units 22, detecting unit 23, comparing unit 24 and performance element 25;
The input of accessory power supply 21 is connected with the output of power interface 1, and the comparison power output end of accessory power supply 21 is connected with the input of comparing unit 24, and the execution power output end of accessory power supply 21 is connected with the input of performance element 25;
The input of breaking units 22 is connected with the power output end that opens circuit of power interface 1, and the detection output of breaking units 22 is connected with the detection input of detecting unit 23;
The comparison output of detecting unit 23 is connected with the detection input of comparing unit 24, and the test output terminal of detecting unit 23 is connected with foot bath water body 51;
The output of comparing unit 24 is connected with the comparison input of performance element 25.
The operation principle of present embodiment is following:
The residual current protective unit 2 of present embodiment is residual current reaction and the action that utilizes foot bath 5; The residual current of foot bath 5 is almost nil during normal the operation; When foot bath 5 takes place that the person gets an electric shock or device housings when charged, when occurring bigger residual current, 2 of residual current protective units impel performance element 25 to move after detecting and handle this residual current reliably; And then cut off the electricity supply, play the safeguard protection effect.
The beneficial effect of present embodiment is following:
Present embodiment is through being provided with residual current protective unit 2, and this residual current protective unit 2 detects in the foot bath water body 51 whether have the signal of telecommunication through detecting unit 23, and whether the size of the comparing unit 24 more detected signals of telecommunication surpasses preset value; If surpass preset value; Then send signal and give performance element 25, accomplish the action of cutting off the electricity supply by performance element 25, but detection at any time electric leakage situation; And when finding electric leakage, in time cut off the electricity supply automatically, can guarantee user's personal safety.
embodiment 2.
A kind of earth leakage protective foot bath; Other structures of present embodiment are identical with embodiment 1; Difference is: residual current protective unit 2 also includes test cell 26; The input that opens circuit of test cell 26 is connected with the detection output of breaking units 22, and the detection output of test cell 26 is connected with the analog detection input of detecting unit 23, and the electric signal input end of test cell 26 is connected with foot bath water body 51.
Residual current protective unit 2 is set to the current mode earth leakage circuit-breaker.
Because residual current protective unit 2 is protective devices, should make regular check on therefore whether it intact, reliable.Can test cell 26 be used to simulate leakage path, regular event with inspection residual current protective unit 2.
embodiment 3.
A kind of earth leakage protective foot bath, other structures of present embodiment are identical with embodiment 2, and difference is: the residue operating current of residual current protective unit 2 is set to 10 milliamperes, and break-time is set to be less than or equal to 0.1 second.
In order to guarantee personal safety, rated residual operating current should be not more than human body safe current value, generally acknowledges that in the world not being higher than 30 milliamperes is human body safe current value; Be used to prevent the protection equipment of person electric shock; The power consumption of protected circuit and equipment is little, and leakage current is little, generally is no more than 10 milliamperes; So the residue operating current of residual current protective unit 2 is set to 10 milliamperes, break-time is set to be less than or equal to 0.1 second.
Test cell 26 is set to testing button.Can carry out leakage tests quickly and easily.
Foot bath heater element 52 tops are coated with heat conducting film.The heat that heat conducting film can send heater element 52 better is set to be transmitted in the water.
The heat conducting film top is coated with insulating barrier.The insulating barrier that is provided with can play insulating effect better, strengthens earth leakage protective.
Need to prove: the residual current protective unit 2 of present embodiment is not limited to use at foot bath 5, also is applicable to the damp and hot blanket of far infrared, coffee hot plate, milk warmer, warming electric heat mat, electric heating massage boudoir, engine handle warm-keeping belt (device), automobile rearview mirror heater, the warming cap of infrared electric heating, outdoor warm cushion, food insulating bag, doughnut heater, electrothermal vest, massage heater and hot compress pad etc.
Should be noted that at last; Above embodiment only be used to explain the utility model technical scheme but not to the restriction of the utility model protection range; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.
Claims (7)
1. earth leakage protective foot bath; Comprise power interface, supply control unit, pressure switch, foot bath, temperature sensor and MCU intelligent controller; The heating sheet power supply output of said power interface is connected with the input of said supply control unit, and the controller power supply output of said power interface is connected with the power end of said MCU intelligent controller; The output of said supply control unit is connected with the input of said pressure switch; The output of said pressure switch is connected with the input of the foot bath heater element of said foot bath; The output of said foot bath heater element is connected with the input of said temperature sensor, and the output of said temperature sensor is connected with the sensing input of said MCU intelligent controller;
It is characterized in that: be provided with residual current protective unit, said residual current protective unit is electrically connected between the foot bath water body of said power interface and said foot bath;
Said residual current protective unit includes accessory power supply, breaking units, detecting unit, comparing unit and performance element;
The input of said accessory power supply is connected with the output of said power interface, and the comparison power output end of said accessory power supply is connected with the input of said comparing unit, and the execution power output end of said accessory power supply is connected with the input of said performance element;
The input of said breaking units is connected with the power output end that opens circuit of said power interface, and the detection output of said breaking units is connected with the detection input of said detecting unit;
The comparison output of said detecting unit detects input with said comparing unit and is connected, and the test output terminal of said detecting unit is connected with said foot bath water body;
The output of said comparing unit is connected with the comparison input of said performance element.
2. a kind of earth leakage protective foot bath according to claim 1; It is characterized in that: said residual current protective unit also includes test cell; The input that opens circuit of said test cell is connected with the detection output of said breaking units; The detection output of said test cell is connected with the analog detection input of said detecting unit, and the electric signal input end of said test cell is connected with said foot bath water body.
3. a kind of earth leakage protective foot bath according to claim 2, it is characterized in that: said test cell is set to testing button.
4. a kind of earth leakage protective foot bath according to claim 1 and 2, it is characterized in that: said residual current protective unit is set to the current mode earth leakage circuit-breaker.
5. a kind of earth leakage protective foot bath according to claim 4 is characterized in that: the residue operating current of said residual current protective unit is set to 10 milliamperes, and break-time is set to be less than or equal to 0.1 second.
6. a kind of earth leakage protective foot bath according to claim 1, it is characterized in that: the top of said foot bath heater element is coated with heat conducting film.
7. a kind of earth leakage protective foot bath according to claim 6, it is characterized in that: the top of said heat conducting film is coated with insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203966167U CN202309025U (en) | 2011-10-18 | 2011-10-18 | Leakage protective foot tub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203966167U CN202309025U (en) | 2011-10-18 | 2011-10-18 | Leakage protective foot tub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309025U true CN202309025U (en) | 2012-07-04 |
Family
ID=46377839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203966167U Expired - Fee Related CN202309025U (en) | 2011-10-18 | 2011-10-18 | Leakage protective foot tub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105559660A (en) * | 2016-03-14 | 2016-05-11 | 张知远 | Self-heating type foot bath tub |
| CN106038159A (en) * | 2016-05-17 | 2016-10-26 | 山东省产品质量检验研究院 | Massage chair with residual current protection function and applications of massage chair |
-
2011
- 2011-10-18 CN CN2011203966167U patent/CN202309025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105559660A (en) * | 2016-03-14 | 2016-05-11 | 张知远 | Self-heating type foot bath tub |
| CN105559660B (en) * | 2016-03-14 | 2017-12-19 | 高巧燕 | A kind of self-heating foot bath |
| CN106038159A (en) * | 2016-05-17 | 2016-10-26 | 山东省产品质量检验研究院 | Massage chair with residual current protection function and applications of massage chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121018 |