CN201028805Y - Damping isolation signal pickup assembly used for electric water heater - Google Patents
Damping isolation signal pickup assembly used for electric water heater Download PDFInfo
- Publication number
- CN201028805Y CN201028805Y CNU2007201412610U CN200720141261U CN201028805Y CN 201028805 Y CN201028805 Y CN 201028805Y CN U2007201412610 U CNU2007201412610 U CN U2007201412610U CN 200720141261 U CN200720141261 U CN 200720141261U CN 201028805 Y CN201028805 Y CN 201028805Y
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- Prior art keywords
- insulation tube
- connector
- electric heater
- damping isolation
- water
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000013016 damping Methods 0.000 title claims abstract description 30
- 238000002955 isolation Methods 0.000 title claims description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims description 86
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 206010014357 Electric shock Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a damping and isolating signal gathering device for electric water heater, comprising an insulating tube which is communicated with the inner lining of the electric water heater, and further comprising a signal gathering element which provides potential signal to the anti-creep protective device on the electric water heater. The signal gathering element is arranged at the remote end of the inner lining corresponding to the insulating tube; the signal gathering element has a contacting face a which is contacted with the water flows through the insulating tube. The utility model applies the potential signal generated in pressure reduction of insulating tube as well as the anti-creep protective device to prevent the creepage in the electric water heater, enabling a much safer and reliable usage. The length of the insulating tube is greatly shorter than that of the insulating tube in the anti-creep wall. The structure is delicate, no space is occupied, the installation and the dismounting are convenient and the system is easily optimized.
Description
Technical field
The present invention relates to a kind of damping isolation signals harvester that is used on the electric heater
Background technology
Existing electric heater generally adopts " Fang Dianqiang " technology aspect proof and electric leakage-proof safety.This technology has been adorned one very big " resistance " between human body and water, in case leaky takes place, this " resistance " can bear most pressure drop, thereby the pressure drop that human body is born is very little.This " resistance " is that the insulation tube of 53 times of its endoporus radius squared length is realized by installation length on inlet tube and outlet tube.
As the disclosed patent No. of Patent Office of the People's Republic of China be: 01135300.7, name is called: the patent of invention of anti-electric shock type electric water heater.Its disclosed technical scheme is at water inlet pipe and outlet pipe place insulation tube to be installed.In order to improve resistivity of water in the insulation tube of flowing through, produce pressure drop, reduce to flow out the electrified voltage in the water behind the insulation tube greatly, to reach the safe voltage scope of human body, promptly said " Fang Dianqiang " technology, generally the length with insulation tube L is made as more than 53 times of endoporus radius r squared length, that is: L＞53r
2In this scheme, the length of its insulation tube is very long, gives to install and use and has brought very big inconvenience, and what have makes crooked shape to insulation tube in order to reduce length, screw type, shapes such as M shape.And; in this scheme; the circuit after the electric leakage does not disconnect protective device and warning device; after the water heater electric leakage; to flow out just that the electrified voltage of water is reduced in the safe voltage scope of human body in the insulation tube, and not be further power down process and alarm user for the electric leakage situation.So just cause the user also ignorant under the situation that water heater has leaked electricity, also just can not take follow-up remedial measure.Above-mentioned situation generation back as untimely deenergization are also notified the user, and fault can not get getting rid of timely, and potential safety hazard still exists, and for the user, is unsafe.Also can cause simultaneously the fault rate height of water heater, reduction of service life.
If an earth leakage circuit-breaker and warning device just are installed on the basis of existing " Fang Dianqiang " water heater in addition, then also need be provided with in addition the signal pickup assembly of surveying the water heater electric leakage signal is installed, brought inconvenience to installation, increased cost simultaneously.Not only raise the cost, and complex structure, the installation and maintenance inconvenience.And such conceptual design makes between " Fang Dianqiang " technology and earth leakage circuit-breaker and the warning device and can not cooperatively interact, the co-operating earth leakage protective of carrying out.
Earth leakage circuit-breaker in the existing water heater; its signals collecting end directly is connected on inner bag and the shell mostly; if the water in the inner bag is because slight electrification phenomenon takes place in some situation; can't cause Danger Electric shock risk to the user; also can respond to and deenergization immediately; this just causes earth leakage circuit-breaker frequent false touch to move, and has brought inconvenience to the user.And if inner bag leaks electricity, the signals collecting end is gathered signal and is imported the earth leakage circuit-breaker deenergization during this period of time, though very short, the user really still exists by the danger of " electricity once ".In addition, if the electric leakage situation has taken place in inner bag, the voltage signal that collects is often all about 220V, and such signal is as being directly inputted in the control circuit, but need add the functional module of step-down or adopt the higher high voltage bearing control module of price control circuit.So existing safe in utilization in order to ensure circuit all can adopt to have the earth leakage protective device that overload and overvoltage circuit are protected.This not only makes internal control circuit complicated more, and has increased cost.
Summary of the invention
In order to solve deficiency of the prior art, the invention provides a kind of damping isolation signals harvester that is used on the electric heater.Comprise an insulation tube; establish a signals collecting part on the insulation tube; the signals collecting part is gathered the water from insulation tube inflow water heater liner or is flowed out the electric potential signal of the water of insulation tube from water heater liner; and signal inputed to the earth leakage protective device of water heater, will " anti-electricity is strong " technology and existing earth leakage protective device effectively combine.
The technical solution used in the present invention is: a kind of damping isolation signals harvester that is used on the electric heater, comprise an insulation tube that is connected with the inner bag of electric heater, also be included as the signals collecting part that earth leakage protective device on the electric heater provides electric potential signal; Described signals collecting part is located on the far-end of described insulation tube with respect to inner bag, and described signals collecting part has a contact-making surface, and described contact-making surface a contacts with the water of the described insulation tube of flowing through;
The present invention also adopts following attached technical scheme: an end of described insulation tube is equipped with first connector, the other end is equipped with second connector, described second connector is described signals collecting part, described second connector is that conductive metallic material is made, and described first connector and the second connector mutually insulated separate; Described first connector is connected with water inlet pipe, outlet pipe on the inner container of electric water heater, and second connector is connected with supply channel, the discharge pipe line of electric heater, and described second connector has a contact-making surface, and described contact-making surface contacts with the water of the insulation tube of flowing through;
Described insulation tube is designed to an inserts, and described first connector is a hold-down nut, and second connector is the set bolt of a hollow; Described damping isolation signals harvester also comprises a fixed axis, and an end of described fixed axis embeds in the body of described insulation tube, and the other end flexibly connects mutually with described hold-down nut; Described set bolt is socketed on the insulation tube, and an end embeds in the body of described insulation tube, and the end face of the other end is a contact-making surface, contacts with the water of the described insulation tube of flowing through; Be provided with a signal exit on described set bolt, described signal exit passes from the body of described insulation tube;
Described damping isolation signals harvester is 2, is connected on the water inlet pipe, outlet pipe of inner container of electric water heater;
Described insulation tube adopts the enhancing nylon material to make;
The diameter of bore of described insulation tube is 4mm～8mm, and the length of described insulation tube is between 40mm～160mm;
The diameter of bore of described insulation tube is 6mm, and length is 120mm;
The diameter of bore of described insulation tube is 5mm, and length is 73mm.
The beneficial effect that adopts the present invention to bring: (1) this damping isolation signals harvester is established a signal exit on insulation tube; and be connected in the earth leakage protective device of electric heater, on the basis that insulation tube is protected electric leakage, increase leakage switch protection and warning function.Insulation tube and earth leakage circuit-breaker, warning device are combined as a whole constitute damping isolation signals harvester of the present invention, cooperatively interact and carry out earth leakage protective, use safelyr, structure is more simplified, and is easy for installation.(2) the signal exit on the insulation tube of the present invention is gathered the electric potential signal in supply channel and the discharge pipe line, and inputs in the earth leakage protective device of water heater.In case the inner bag electric leakage is not only protected the electric leakage situation of discharge ends, but also the electric leakage of the end that supplies water is protected, got rid of because of ground wire electrification, or the charged situation of supply channel, the security that further improves water heater.(3) in case water heater liner electric leakage, insulation tube at first carries out step-down to electric leakage to be handled, the collection of signal exit after step-down signal and input in the earth leakage protective device, remind the user when cutting off the electricity supply.On anti-creeping basis, accomplish that potential safety hazard in time finds, in time get rid of.(4) since the collection of signal exit be signal after the insulation tube step-down; magnitude of voltage descends significantly; voltage is born in the work of each electric component of earth leakage circuit-breaker inner control circuit and control chip of satisfying; and no longer need overload, overvoltage circuit protection or step-down to handle; thereby simplified the structure of control circuit, and provided cost savings.(5) when slight electrification phenomenon takes place owing to some situation in the water in the inner bag; because voltage is lower; electric potential signal to the signals collecting end after the insulation tube step-down can be ignored, and at this moment just can not produce false touch and move, and has improved the sensitivity and the accuracy rate of earth leakage protective device.(6) to 6mm, length L arrives 160mm at 40mm at 4mm for the insulation tube in the damping isolation signals harvester of the present invention, its diameter.Its length is much smaller than the length of existing insulation tube.Charged current are behind overdamp isolation signals harvester, by national examination criteria voltage is 220V, using water temperature is 25 ± 5 ℃, resistivity is that Leakage Current is no more than 5mA under the situation of code test water of 1250 ± 50 Ω .cm, satisfies the requirement of GB4706.12-2006 " specific (special) requirements of the safe storage-type electric water heater of family expenses and similar applications electrical equipment " standardization appendix A A to Leakage Current fully.Structure is smaller and more exquisite, do not take up room, and easy installation and removal, the system of being convenient to is optimized.
Figure of description
Fig. 1 is the perspective view of damping isolation signals harvester of the present invention;
Fig. 2 is the Facad structure schematic diagram of damping isolation signals harvester of the present invention;
Fig. 3 is the cut-away view of Fig. 2;
Fig. 4 is that the A-A of Fig. 2 is to cut-away view;
Fig. 5 illustrates damping isolation signals harvester to be connected with warning circuit with control circuit for the schematic diagram that is connected and installed of damping isolation signals harvester of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description:
As Fig. 1 to a kind of damping isolation signals harvester that is used on the electric heater shown in Figure 5; comprise an insulation tube 21 that is connected with the inner bag of electric heater; also being included as earth leakage protective device on the electric heater provides the signals collecting part of electric potential signal; one end of insulation tube 21 is connected with the inner bag 1 of electric heater; the signals collecting part is located on the far-end of described insulation tube 21 with respect to inner bag; the signals collecting part has a contact-making surface a, and described contact-making surface a contacts with the water of the described insulation tube 21 of flowing through.Just contact the electric potential signal in the collection water with the water that flows into inner bag from insulation tube or from the water that inner bag flows out insulation tube.Insulation tube 21 adopts the insulating materials that strengthens nylon to make in the present embodiment.The effect that insulation tube 21 plays is when inner bag leaks electricity, and convection current is carried out the step-down processing through the water of insulation tube 21, makes the voltage of water reach the safe voltage that human body can bear.Among the present invention, the length of insulation tube 21 between 40mm to 160mm, its diameter of bore at 4mm between the 8mm.Preferred scheme is that the length of insulation tube is 120mm, and diameter of bore is 6mm, or length is 73mm, and diameter of bore is 5mm.
As shown in Figures 1 to 4, an end of insulation tube 21 is equipped with first connector, and the other end is equipped with second connector, and second connector is that conductive metallic material is made.In the present embodiment, second connector is the signals collecting part.First connector and the second connector mutually insulated separate.First connector is connected with water inlet pipe 11, outlet pipe 12 on the inner container of electric water heater 1, and second connector is connected with supply channel, the discharge pipe line of electric heater and contacts with water in the pipeline.Described signals collecting part is connected with described second connector, and second connector has a contact-making surface a, and contact-making surface a contacts with the water of the insulation tube 21 of flowing through.Because supply channel and discharge pipe line need be connected and installed in addition, and belong to existing mature technique, prior art personnel need not performing creative labour and just can implement, and do not illustrate in the drawings here.
In the specific embodiment that the present invention provides, as shown in Figures 1 to 4, damping isolation signals harvester 2 is 2, is connected on the water inlet pipe 11, outlet pipe (12) of inner container of electric water heater.First connector that is installed on insulation tube 21 1 ends is a hold-down nut 22, and it is connected with outlet pipe 12 with water inlet pipe 11; Second connector that is installed on insulation tube 21 other ends is a set bolt 23, it with hold-down nut 22 between mutually the insulation separate.Damping isolation signals harvester 2 also comprises a fixed axis 24, insulation tube 21 is an inserts, one end of fixed axis 24 embeds in the body of insulation tube 21, the other end flexibly connects mutually with hold-down nut 22, one end of set bolt 23 embeds in the body of insulation tube 21, the end face of the other end is contact-making surface a, and this contact-making surface a contacts to obtain the electric potential signal in the water with the water of the insulation tube 21 of flowing through.Be provided with a signal exit 231 on set bolt 23, signal exit 231 passes from the body of insulation tube 21.With being connected of earth leakage protective device 13.Earth leakage protective device 13 comprises control circuit and warning circuit, and warning circuit comprises light warning circuit that has the indicator lamp that leaks electricity and/or the audible alarm circuit that has loudspeaker.
As shown in Figure 5, damping isolation signals harvester 2 is installed respectively on water inlet pipe 11 and the outlet pipe 12, and is connected with discharge pipe line with supply channel by damping isolation signals harvester 2.The voltage of 21 pairs of water of insulation tube produces hypotensive effect.Among Fig. 5, the arrow at insulation tube 21 two ends represents that variation has taken place through hole, two ends voltage, and the voltage after insulation tube 21 step-downs is lower than the voltage in the inner bag 1.When inner bag 1 was charged, insulation tube 21 not only carries out step-down to the water at delivery port pipe 12 places to be handled, and also simultaneously the water at water inlet pipe 11 places was carried out step-down and handled, with the feed pipe leakproof of guaranteeing to be connected with water inlet 11.Signal exit 231 inputs to earth leakage protective device 13 with the electric potential signal after insulation tube 21 step-downs that the contact-making surface a of set bolt 23 gets access to.When inner bag 1 leakproof, signal is constant, and when the inner bag electric leakage, signal will change, and control circuit in the earth leakage protective device 13 and warning circuit will respond, and cut off the electricity supply and report to the police.When inner bag 1 electric leakage; the signal that signal exit 231 inputs in the earth leakage protective device 13 is handled through insulation tube 21 step-downs; electrified voltage in the water is reduced in the safe voltage scope of human body; satisfied also simultaneously that each electric component and control chip are to the requirement of operating voltage in the control circuit, control circuit need not to carry out step-down again and handles.In addition, when the water in the inner bag 1 owing to some situation slight electrification phenomenon took place, because voltage is lower, the electric potential signal after insulation tube 21 step-downs was very faint, can ignore, and at this moment just can not produce false touch and move.At inner bag 1 real electric leakage situation takes place only; voltage in the inner bag is about 220V or when higher; at this moment after insulation tube 21 step-downs are handled; also have certain voltage in the water; this signal is inputed to control circuit in the earth leakage protective device 13 and warning circuit by signal exit 231 and cuts off the power supply and report to the police; but at this moment in the water with voltage be reduced in the safe range of human body, can't produce dangerous to human body.The sensitivity and the accuracy rate of earth leakage protective device 13 have been improved.Avoid existing electricity-leak-prevention water heater occurring also there is the quilt situation of " electricity once " under the electric leakage situation.And, this moment, insulation tube 21 temporarily solved the electric shock hidden danger that electric leakage brings to the user, in case signal exit 231 will in time be made response after the signal that changes is input to control circuit and warning circuit, deenergization is also reported to the police, the user is known the very first time after electric leakage, and the accident potential that in time takes measures to eliminate.Earth leakage protective device and insulation tube are combined as a whole, and cooperatively interact, play duplicate protection.
Among the present invention; because the contact-making surface a of set bolt 23 gathers is signal after insulation tube 21 step-downs; handle so do not need to carry out again step-down in the control circuit, also just need not establish the earth leakage protective device that step-down parts that the signal voltage of importing is handled or employing have anti-overvoltage, overload capacity more in addition.In addition, generally comprise temperature-control circuit in the control circuit, electric leakage disconnects holding circuit etc.Its circuit is formed and the annexation technology all is mature technologies of extensive use in the existing water heater product, and is not the emphasis place of technical solution of the present invention, gives unnecessary details so no longer its internal circuit composition and annexation are done here.
Claims (8)
1. damping isolation signals harvester that is used on the electric heater, comprise an insulation tube (21) that is connected with the inner bag (1) of electric heater, it is characterized in that: also be included as the signals collecting part that earth leakage protective device (13) on the electric heater provides electric potential signal; Described signals collecting part is located on the far-end of described insulation tube (21) with respect to inner bag, and described signals collecting part has a contact-making surface (a), and described contact-making surface a contacts with the water of the described insulation tube (21) of flowing through.
2. a kind of damping isolation signals harvester that is used on the electric heater according to claim 1, it is characterized in that: an end of described insulation tube (21) is equipped with first connector, the other end is equipped with second connector, described second connector is described signals collecting part, described second connector is that conductive metallic material is made, and described first connector and the second connector mutually insulated separate; Described first connector is connected with water inlet pipe (11), outlet pipe (12) on the inner container of electric water heater (1), second connector is connected with supply channel, the discharge pipe line of electric heater, described second connector has a contact-making surface a, and described contact-making surface (a) contacts with the water of the insulation tube of flowing through (21).
3. a kind of damping isolation signals harvester that is used on the electric heater according to claim 2, it is characterized in that: described insulation tube (21) is designed to an inserts, described first connector is a hold-down nut (22), and second connector is the set bolt (23) of a hollow; Described damping isolation signals harvester (2) also comprises a fixed axis (24), and an end of described fixed axis (24) embeds in the body of described insulation tube (21), and the other end flexibly connects mutually with described hold-down nut (22); Described set bolt (23) is socketed on the insulation tube (21), and an end embeds in the body of described insulation tube (21), and the end face of the other end is contact-making surface (a), contacts with the water of the described insulation tube (21) of flowing through; Be provided with a signal exit (231) on described set bolt (23), described signal exit (231) passes from the body of described insulation tube (21).
4. a kind of damping isolation signals harvester that is used on the electric heater according to claim 2, it is characterized in that: described damping isolation signals harvester (2) is 2, is connected on the water inlet pipe (11), outlet pipe (12) of inner container of electric water heater (1).
5. a kind of damping isolation signals harvester that is used on the electric heater according to claim 1 is characterized in that: described insulation tube (21) adopts the enhancing nylon material to make.
6. a kind of damping isolation signals harvester that is used on the electric heater according to claim 1, it is characterized in that: the diameter of bore of described insulation tube (21) is 4mm～8mm, the length of described insulation tube (21) is between 40mm～160mm.
7. a kind of damping isolation signals harvester that is used on the electric heater according to claim 1, it is characterized in that: the diameter of bore of described insulation tube (21) is 6mm, length is 120mm.
8. a kind of damping isolation signals harvester that is used on the electric heater according to claim 6, it is characterized in that: the diameter of bore of described insulation tube (21) is 5mm, length is 73mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201412610U CN201028805Y (en) | 2007-03-30 | 2007-03-30 | Damping isolation signal pickup assembly used for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201412610U CN201028805Y (en) | 2007-03-30 | 2007-03-30 | Damping isolation signal pickup assembly used for electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028805Y true CN201028805Y (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201412610U Expired - Lifetime CN201028805Y (en) | 2007-03-30 | 2007-03-30 | Damping isolation signal pickup assembly used for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028805Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988744A (en) * | 2010-11-16 | 2011-03-23 | 陈秋华 | A split-type electric partition wall with detection lines for electric water heaters |
| CN101988743A (en) * | 2010-11-16 | 2011-03-23 | 陈秋华 | Split-type electric partition wall for electric water heater |
| CN103851794A (en) * | 2014-02-28 | 2014-06-11 | 谢冬来 | Water inlet pipe for electricity-proof wall and production method thereof |
| CN114294830A (en) * | 2022-01-24 | 2022-04-08 | 广东惠洁宝电器有限公司 | Water inlet separation device, electric water heater and water inlet leakage prevention method |
-
2007
- 2007-03-30 CN CNU2007201412610U patent/CN201028805Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988744A (en) * | 2010-11-16 | 2011-03-23 | 陈秋华 | A split-type electric partition wall with detection lines for electric water heaters |
| CN101988743A (en) * | 2010-11-16 | 2011-03-23 | 陈秋华 | Split-type electric partition wall for electric water heater |
| CN103851794A (en) * | 2014-02-28 | 2014-06-11 | 谢冬来 | Water inlet pipe for electricity-proof wall and production method thereof |
| CN103851794B (en) * | 2014-02-28 | 2017-01-18 | 谢冬来 | Production method for water inlet pipe for electricity-proof wall |
| CN114294830A (en) * | 2022-01-24 | 2022-04-08 | 广东惠洁宝电器有限公司 | Water inlet separation device, electric water heater and water inlet leakage prevention method |
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Granted publication date: 20080227 |
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