CN202630434U - Fluid heater - Google Patents
Fluid heater Download PDFInfo
- Publication number
- CN202630434U CN202630434U CN 201220285308 CN201220285308U CN202630434U CN 202630434 U CN202630434 U CN 202630434U CN 201220285308 CN201220285308 CN 201220285308 CN 201220285308 U CN201220285308 U CN 201220285308U CN 202630434 U CN202630434 U CN 202630434U
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- fluid
- resistance
- control part
- electric heating
- heating element
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Abstract
The utility model discloses a fluid heater which comprises a main body and a circuit control part, wherein the main body comprises a fluid passageway and an electric heat body, the electric heat body is arranged between a fluid entrance of the fluid passageway and a fluid exit of the fluid passageway and is electrically connected with the circuit control part, and the fluid passageway is further provided with two resistance test points electrically connected with the circuit control part. The circuit control part is used for comparing a fluid resistance T between a preset resistance D1 and the two resistance test points, when the fluid resistance T is greater than the preset resistance D1, a power supply return circuit of the electric heat body is closed. According to the fluid heater, starting of the electric heat body in a condition that the fluid resistance T is normal can be ensured, security accidents caused by the starting of the electric heat body when fluid resistivity is quite low and does not play a role in voltage partial pressure are avoided, so that safety of the fluid heater is improved.
Description
Technical field
The utility model relates to a kind of fluid technical field of heating, relates in particular to a kind of Instant heating type fluid heater.
Background technology
Fluid heater such as treasured under quick electric water heater, double-mode electric water heater, instant electric tap, the platform; Plug and play, the instantaneous hot fluid that adds, its volume is less; But power is big than conventional storage-type electric water heater; It normally utilizes electric heating element directly in fluid, to work, and when particularly utilizing naked silk to heat, in inner bag, has heavy current to exist.In order to prevent that heavy current from flowing to human body from inner bag; Whole fluid passage can be provided with certain length usually; To guarantee that electric heating element produces enough big fluid resistance to fluid issuing; Thereby guarantee to flow to the electric current of the electric current of human body much smaller than the human body safety requirements with fluid, this is exactly so-called anti-electric wall technology.But the setting of anti-electric wall; Normally based on normal resistance rate scope like water or other fluid; If the contained impurity of fluid is too much, cause resistivity to reduce, will let so-called anti-electric wall effect reduce; The electric current that flows to human body also can increase, and under some extreme case, can let the user produce uncomfortable feeling even generation security incident.
The utility model content
Given this, the utility model provides a kind of fluid heater, and it can guarantee in the fluid heater under fluid plays the situation of voltage dividing potential drop effect, to restart electric heating element, thereby has improved the security of fluid heater.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is following: a kind of fluid heater; Comprise main body, circuit control part; Said main body comprises fluid passage, electric heating element, and said electric heating element is located between fluid intake and the fluid issuing of fluid passage and electrically connects said circuit control part, also is provided with two resistance test points that electrically connect with the circuit control part in the said fluid passage; Said circuit control part is the fluid resistance T between preset resistance D1 and two resistance test points relatively, when fluid resistance T＞preset resistance D1, and the current supply circuit of closed electric heating element.
Preferable, said circuit control part also is provided with a preset resistance D2, and preset resistance D2 is greater than preset resistance D1, when preset resistance D2＞fluid resistance T＞preset resistance D1, and the current supply circuit of closed electric heating element.
Preferable, said two resistance test points are positioned at said electric heating element both sides.
Preferable, said two resistance test points are positioned at said electric heating element one side.
Preferable, said electric heating element is naked silk calandria.
Compared with prior art, the beneficial effect of the utility model is:
The utility model is through being provided with two resistance test points; And pass through current control division and compare fluid resistance T and preset resistance D1; When fluid resistance T＞preset resistance D1, the current supply circuit of closed electric heating element so can be guaranteed under the normal situation of fluid resistance T, to start electric heating element; Avoid unusual low and do not have the voltage dividing potential drop and do the time spent and start the security incident that electric heating element causes at fluid resistivity, thus the security that has improved fluid heater.
Further; Not enough even do not have to start electric heating element under the situation of fluid for fear of fluid in the fluid passage; This moment, fluid resistance T can become unusual big, and the utility model is through being provided with another preset resistance D2, when preset resistance D2＞fluid resistance T＞preset resistance D1; The current supply circuit of closed electric heating element, and then avoided the generation of dry-fire condition.
Description of drawings
Fig. 1 is a kind of fluid heater embodiment one sketch map of the utility model.
Fig. 2 is a kind of fluid heater embodiment two sketch mapes of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the technical scheme of the utility model is done further explanation.
Embodiment one
With reference to figure 1; A kind of fluid heater comprises main body 1, circuit control part 2, and said main body 1 comprises fluid passage 13, electric heating element 14; Said electric heating element 14 is located between fluid intake 11 and the fluid issuing 12 of fluid passage 13 and electrically connects said circuit control part 2; Also be provided with the resistance test point 15,16 that electrically connects with circuit control part 2 in the said fluid passage 13, in present embodiment, said resistance test point 15,16 lays respectively at the both sides of electric heating element 14; Said electric heating element 14 is naked silk calandrias, and certain said electric heating element 14 is the calandria of other types such as potsherd electric heating body, heat-generating pipe electric heating body also; Said circuit control part 2 is the fluid resistance T of 15,16 of preset resistance D1 and resistance test points relatively, when fluid resistance T＞preset resistance D1, and the current supply circuit of closed electric heating element 14.The setting of said preset resistance D1 is proportional to the fluid distance of 15,16 of resistance test points, and the fluid cross-section that is inversely proportional to 15,16 of resistance test points is long-pending, also depends on the fluid resistivity in the said fluid passage 13 certainly; Certainly, under normal conditions, fluid resistivity has the scope of a fluctuation; Water quality resistivity such as the somewhere is not fixing numerical value usually; And can be a number range, at this moment, to be on the safe side; Those skilled in the art can choose less resistivity value, to confirm predetermined resistance D1.
So; Have only in the fluid passage 13 fluid resistivity just often, it is low unusually that the fluid resistance T that resistance test point is 15,16 can not become, and starts electric heating element 14 this moment; Fluid in the fluid passage 13 has just played enough voltage dividing potential drop effects, has guaranteed user's personal safety.
Embodiment two
With reference to figure 2, different with embodiment one is that resistance test point 15,16 all is positioned at a side of electric heating element 14 in the present embodiment; In addition, present embodiment circuit control part 2 also is provided with a preset resistance D2, and said preset resistance D2 is greater than preset resistance D1.
When preset resistance D2＞fluid resistance T＞preset resistance D1, the current supply circuit of closed electric heating element 14.So, have only in the fluid passage 13 fluid resistivity just often, it is low unusually that the fluid resistance T that resistance test point is 15,16 can not become, and makes fluid resistance T＞preset resistance D1, to guarantee user's personal safety; Moreover it is unusual high that the fluid resistance T that prevents 15,16 of resistance test points simultaneously becomes, and makes fluid resistance T＜preset resistance D2, avoiding not having fluid in the fluid passage 13, or the not enough and dry-fire condition that produces of fluid.
In the present embodiment, the setting of said preset resistance D1 is identical with embodiment one, repeats no more at this, and said preset resistance D2 can be arranged to enough big, the air resistance when being equivalent to dry combustion method.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art, under the prerequisite that does not break away from the utility model principle, can do the improvement of some suitable actual conditions to the technical scheme of utility model.Therefore, the protection domain of the utility model is not limited thereto, and those of skill in the art are any to be included within the utility model protection domain based on non-material change on the utility model technical scheme.
Claims (5)
1. fluid heater; Comprise main body, circuit control part; Said main body comprises fluid passage, electric heating element; Said electric heating element is located between fluid intake and the fluid issuing of fluid passage and electrically connects said circuit control part, it is characterized in that, also is provided with two resistance test points that electrically connect with the circuit control part in the said fluid passage; Said circuit control part is the fluid resistance T between preset resistance D1 and two resistance test points relatively, when fluid resistance T＞preset resistance D1, and the current supply circuit of closed electric heating element.
2. a kind of fluid heater according to claim 1; It is characterized in that said circuit control part also is provided with a preset resistance D2, preset resistance D2 is greater than preset resistance D1; When preset resistance D2＞fluid resistance T＞preset resistance D1, the current supply circuit of closed electric heating element.
3. a kind of fluid heater according to claim 1 and 2 is characterized in that, said two resistance test points are positioned at said electric heating element both sides.
4. a kind of fluid heater according to claim 1 and 2 is characterized in that, said two resistance test points are positioned at said electric heating element one side.
5. a kind of fluid heater according to claim 1 and 2 is characterized in that, said electric heating element is naked silk calandria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285308 CN202630434U (en) | 2012-06-06 | 2012-06-06 | Fluid heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285308 CN202630434U (en) | 2012-06-06 | 2012-06-06 | Fluid heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630434U true CN202630434U (en) | 2012-12-26 |
Family
ID=47383629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285308 Expired - Fee Related CN202630434U (en) | 2012-06-06 | 2012-06-06 | Fluid heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630434U (en) |
-
2012
- 2012-06-06 CN CN 201220285308 patent/CN202630434U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU SUNJOE ELECTRIC APPLIANCE CO., LTD. Free format text: FORMER OWNER: SONG HAIBO Effective date: 20130516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130516 Address after: The summer garden road in Whampoa District of Guangzhou City, 510725 quarries in Guangdong province No. 2, five building 402 Patentee after: Guangzhou Czech Electric Appliance Co., Ltd. Address before: Whampoa District of Guangzhou City, Guangdong Province, No. 599 East 510725 Vanke City Garden F3-201 Patentee before: Song Haibo |
|
| DD01 | Delivery of document by public notice |
Addressee: Guangzhou Czech Electric Appliance Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Guangzhou Czech Electric Appliance Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140606 |
|
| EXPY | Termination of patent right or utility model |