CN101476779A - Compact anti-electric shock apparatus for electricity-related water system and manufacturing method thereof - Google Patents
Compact anti-electric shock apparatus for electricity-related water system and manufacturing method thereof Download PDFInfo
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- CN101476779A CN101476779A CNA2009100054689A CN200910005468A CN101476779A CN 101476779 A CN101476779 A CN 101476779A CN A2009100054689 A CNA2009100054689 A CN A2009100054689A CN 200910005468 A CN200910005468 A CN 200910005468A CN 101476779 A CN101476779 A CN 101476779A
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- end cover
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Abstract
The invention discloses a compact electric-shock prevention device and a method for manufacturing the same, which relate to an electric water system. With one weld and 'weld-free' appearance achieved through plastic injection, the electric-shock prevention device manufactured by the method reduces leakage rate and is beautiful compared with the prior product; a closed water channel formed by once-for-all welding has excellent cold and heat resistance and pulse pressure resistance, so the device overcomes the drawbacks of the prior product in terms of production process, performance and the like.
Description
One, affiliated technical field
The invention discloses a kind of compact anti-electric shock apparatus and manufacture method thereof of electricity-related water system, belong to household electrical appliance technical field.
Two, background technology
Existing domestic hot water system has several forms such as solar energy heating of electrical heating, combustion gas heating, heat pump and the auxilliary electric installation of band usually, generally all uses civil power as heating energy source or drive energy.According to the Electrical Safety regulation, system must reliable ground.Ground wire no current in normal use, when electric leakage took place contingency, electric current flowed into the earth by low-resistance ground wire, guaranteed human body safety thereby the people is formed equipotential protection.
Yet a big chunk of in fact existing house is not just installed good earthing or grounding means when building.In addition, some sockets can cause plug-in unit loosening owing to design, produce lack of standardization or frequent plug, tend to cause the empty phenomenon of inserting of ground wire during use.Like this, when electric leakage took place contingency, high voltage just may be spread out of by water through entery and delivery port human body is caused electric shock.
In order to prevent the generation of above-mentioned electric shock accidents, people connect the one section long water-filled pipe of being made by insulating materials into and out of mouth of pipe place at the electrical equipment of paddling, utilize the resistance characteristic of water, make between the water-mixing valve of paddle electrical equipment water-in and water-out joint and adjusting under water-filled condition, to have bigger resistance value.Like this just in case electric leakage and ground wire when unreliable, because the existence of this big resistance, will significantly reduce from the electric current of human body process, thereby guarantee human body safety.
Yet the weak point of above-mentioned solution is that pipe can not be too thin because resistance to water-flow can not be too big, reach big resistance value, pipe is just very long, coils bulky in the bottom, waste material again neither attractive in appearance, and it is too poor to cause connecting rigidity, damages easily.
The patent of invention of Dang Kunxuan, Lu Yingmei---" a kind of compact anti-electric shock apparatus of electric heater and manufacture method thereof " (patent No.: 02114552.0, September 20 2006 Granted publication day) proposed a kind ofly to form mosquito repellent coil disc by three injection mouldings and replace the coiled insulation tube around the method that the plastic part heating seam of shape spiral grooves constitutes the anti-electric shock apparatus of intercommunication runner together.This device and method has plurality of advantages such as volume is little, good rigidly, good processability than other similar devices, thereby has obtained practical application in the electric heater industry.But also there is following deficiency in this device and method:
1, each device all has the twice weld seam, and how weld seam has just increased the possibility of leakage failure.
When 2, three parts to be welded weld, become " five Mingzhi " state with two heating plate palpiforms: promptly five layers will stack, middle distance piece is subjected to the restriction of two heating plate positions and size own, the location is difficulty very, therefore be difficult to commercially available common plastics welding machine welding, thereby cause that working (machining) efficiency is low, cost is higher, price is higher, only use at present, be difficult to popularize comprehensively and adopt at the appliance field of paddling in high-end water heater scope.
Three, summary of the invention
Purpose of the present invention is exactly compact anti-electric shock apparatus and the manufacture method thereof that a kind of electricity-related water system will be provided.Use this device, unreliable or do not have ground wire and take place also can prevent the generation of electric shock accidents under the condition of electric leakage the electrical equipment ground connection of paddling, thus guarantee human body safety.Overcome simultaneously the aspects deficiency that aforementioned patent of invention device exists again.
Below with reference to accompanying drawing technical scheme of the present invention is described:
With reference to accompanying drawing, compact anti-electric shock apparatus of the present invention is made up of last end connector 4, seal groove 5, upper end cover 6, distance piece 7, bottom end cover 8, following end connector 9, upper end cover 6, bottom end cover 8 and distance piece 7 form by the thermoplastic plastic injecting of polypropylene, nylon, polycarbonate etc. or other abilities high temperature more than 85 ℃, after last end connector 4 and following end connector 9 process seal groove 5, as the injection moulding inserts about be fixed in wherein during the end cap injection mo(u)lding.All injection moulding forms darker mosquito repellent coil disc around formula water stream channel groove on upper end cover 6 and bottom end cover 8, corresponding mutually and mosquito repellent coil disc that can embed wherein " both sides are thin, thick ' U ' type in bottom " is around formula Ditch cover board 11 around formula water stream channel groove for mosquito repellent coil disc on one side injection moulding formation of distance piece 7 and upper end cover 6 or the bottom end cover 8, and the another side injection moulding of distance piece 7 forms locatees 12 bindings of binding film and respectively enclose Ditch cover board.Distance piece 7 is embedded mosquito repellent coil disc on upper end covers 6 or the bottom end cover 8 behind formula water stream channel groove, " both sides thin, thick ' U ' type in bottom " Ditch cover board 11 of distance piece 7 one sides is promptly the sealing of the water stream channel groove of upper end cover 6 or bottom end cover 8, and the location of the another side of distance piece 7 links the good location that film 12 guarantees distance piece Ditch cover boards 11 and corresponding end cap.The location of distance piece 7 links film 12 to be fallen by hot melt in heating process, after upper end cover 6, distance piece 7, bottom end cover 8 heating surface melted by heat upper end cover 6, distance piece 7,8 three part pressings of bottom end cover is welded together.Weld seam is so only arranged one, and therefore the device than aforementioned patent makes the leakage possibility descend half.Upper end cover 6, distance piece 7, bottom end cover 8 form the water stream channel 10 of the mosquito repellent coil disc of enclosed cross around formula after the hot melt seam, the transversal flow area of water stream channel 10 and the ratio proportioning of length should satisfy meet the requirements of resistance value after being full of water.
Under the normal temperature, the resistivity of ordinary tap water is about 3000 Europe * centimetres, be full of that resistance value between both ends is 1 megaohm behind the water if set water stream channel 10, when the passage section of water stream channel 10 be internal diameter 8mm when circular its length be about 1.6 meters, its length is about 4 meters when internal diameter is 10mm.Consider that resistance value takes into account the resistance to water-flow characteristic simultaneously, mosquito repellent coil disc is not more than 4 meters and is advisable to be no more than 2 square centimeters, length of run around the cross-sectional area of formula water stream channel 10; Mosquito repellent coil disc can be designed to the difformities such as square or rectangular of circle, ellipse, band fillet as required around the cross section of formula water stream channel 10.
Mosquito repellent coil disc can be made concentric circles tangent line cross-over configurations, off-centre operation cross-over configurations or mosquito repellent coil disc around structure around formula water stream channel 10.
Corresponding to concrete structure of the present invention, its welding method is: at the upper end cover 6 of a side to embed distance piece 7 of the metallic plate of a heating, at the opposite side of heating plate, put with bottom end cover 8.After three plastic parts heat through heating plate, the contact surface of upper end cover 6 is heated fusing, after binding film 12 in the location of distance piece 7 is fallen by hot melt, the fusion thereupon of the contact surface of bottom end cover 8, remove heating plate then, two end caps with both sides press together rapidly again, thereby the welding process of finishing forms weld seam one.
Corresponding to concrete structure of the present invention, its another welding method is: the splitter structure is made on the surface to be welded at upper end cover 6, bottom end cover 8, the upper end cover 6, the bottom end cover 8 that embed distance piece 7 are passed through the ultrasonic welding method seam together, form weld seam one.
Corresponding to concrete structure of the present invention, distance piece 7 also can be made the corresponding construction that embeds bottom end cover 8.
Four, description of drawings
Accompanying drawing 1 is the compact anti-electric shock apparatus made according to the inventive method and the connection diagram of electric heater.
Accompanying drawing 2 is that compact anti-electric shock apparatus of the present invention is the generalized section of monomer mosquito repellent coil disc when formula water stream channel structure, being described as follows of each symbol among the figure:
1---electric heater main frame Inlet and outlet water joint, 2---compact anti-electric shock apparatus, 3---mix water valve, 4---go up end connector, 5---seal groove, 6---upper end cover, 7---distance piece, 8---bottom end cover, 9---following end connector, 10---mosquito repellent coil disc is around the formula water stream channel, and 11---Ditch cover board, 12---the location film.Arrow is represented water (flow) direction among the figure.
Five, the specific embodiment
The compact anti-electric shock apparatus of making by technical scheme of the present invention, the flow direction of mosquito repellent coil disc water in formula water stream channel 10, as shown in the figure, flow out the back in the middle of can be in the middle of the side flowing to from outer rim after outer rim flow to opposite side through the through hole of distance piece 7 again, also can be made into from outer rim to middle again by distance piece 7 forms of back from the centre to the outer rim.
The compact anti-electric shock apparatus of making by technical scheme of the present invention can be made into haplotype, is loaded on respectively between water-in and water-out joint and the mixed water valve, also can be made into the couple structure of disjunctor.
Need after finishing, welding available injection moulding process thereby formation " no weld seam " structure be contained in the weld seam injection moulding for attractive in appearance by the compact anti-electric shock apparatus that technical scheme of the present invention is made.
The compact anti-electric shock apparatus of making by technical scheme of the present invention for satisfy needs attractive in appearance outside face shield with multi-form outer cover.
By the compact anti-electric shock apparatus that technical scheme of the present invention is made, be loaded on last end connector 4 and the directly injection moulding formation of following end connector 9 that is loaded on the bottom end cover 8 on the upper end cover 6.
Compact anti-electric shock apparatus by technical scheme of the present invention is made can connect a common electroscope circuit when needing at mosquito repellent coil disc around between formula water stream channel 10 two ends, when electric leakage and ground wire when unreliable, neon tube is luminous, plays the electric leakage warning function.
By the compact anti-electric shock apparatus that technical scheme of the present invention is made, it is multi-form that its profile can be made square or rectangular of circle, ellipse, band fillet etc.
Claims (10)
1, a kind of compact anti-electric shock apparatus of electricity-related water system is characterized in that: be made up of last end connector (4), seal groove (5), upper end cover (6), distance piece (7), bottom end cover (8), following end connector (9), upper end cover (6), bottom end cover (8) and distance piece (7) form by the thermoplastic plastic injecting of polypropylene, nylon, polycarbonate etc. or other abilities high temperature more than 85 ℃, after last end connector (4) and following end connector (9) process seal groove (5), be fixed in wherein when the end cap injection mo(u)lding up and down as the injection moulding inserts; Go up the darker mosquito repellent coil disc of equal injection moulding formation around formula water stream channel groove at upper end cover (6) and bottom end cover (8), corresponding mutually and mosquito repellent coil disc that can embed wherein " both sides are thin, thick ' U ' type in bottom " is around formula Ditch cover board (11) around formula water stream channel groove for mosquito repellent coil disc on one side injection moulding formation of distance piece (7) and upper end cover (6) or the bottom end cover (8), and the another side injection moulding of distance piece (7) forms locatees binding film (12) binding and respectively enclose Ditch cover board; Distance piece (7) is embedded mosquito repellent coil disc on upper end cover (6) or the bottom end cover (8) behind formula water stream channel groove, promptly the sealing of the water stream channel groove of upper end cover (6) or bottom end cover (8), the location of the another side of distance piece (7) links the good location of film (12) assurance distance piece Ditch cover board (11) and corresponding end cap to " both sides thin, thick ' U ' type in bottom " Ditch cover board (11) of distance piece (7) one sides; The location of distance piece (7) links film (12) to be fallen by hot melt in heating process, after upper end cover (6), distance piece (7), bottom end cover (8) heating surface melted by heat upper end cover (6), distance piece (7), (8) three part pressings of bottom end cover is welded together.
2, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: thus available injection moulding process contained formation " no weld seam " structure with the weld seam injection moulding after welding was finished.
3, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: be loaded on last end connector (4) and the directly injection moulding formation of following end connector (9) that is loaded on the bottom end cover (8) on the upper end cover (6).
4, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: can be at mosquito repellent coil disc around between formula water stream channel (10) two ends, connect a common electroscope circuit when needing, when electric leakage and ground wire when unreliable, neon tube is luminous, plays the electric leakage warning function.
5, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: can be made into haplotype, be loaded on respectively between water-in and water-out joint and the mixed water valve, also can be made into the couple structure of disjunctor.
6, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: for satisfy needs attractive in appearance outside face shield with multi-form outer cover.
7, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: the flow direction of mosquito repellent coil disc water in formula water stream channel (10), can be made into from a side intermediate flow and in the middle of outer rim flows to from outer rim to the opposite side through the current through holes, flow out the back again, also can make from outer rim to middle again by the form from the centre to the outer rim behind the current through hole.
8, the compact anti-electric shock apparatus by the described a kind of electricity-related water system of claim one is characterized in that: the square or rectangular that can make circle, ellipse, band fillet etc. is multi-form; Mosquito repellent coil disc can be made concentric circles tangent line cross-over configurations, off-centre operation cross-over configurations or mosquito repellent coil disc around structure around the formula water stream channel.
9, the manufacture method by the compact anti-electric shock apparatus of the described a kind of electricity-related water system of claim one is: its welding method is the upper end cover (6) of a side to embed distance piece (7) at the metallic plate of a heating, at the opposite side of heating plate, put with bottom end cover (8); After three plastic parts heat through heating plate, the contact surface of upper end cover (6) is heated fusing, after the location binding film (12) of distance piece (7) is fallen by hot melt, the contact surface fusion thereupon of bottom end cover (8), remove heating plate then, two end caps with both sides press together rapidly again, thereby the welding process of finishing forms weld seam one.
10, the manufacture method by the compact anti-electric shock apparatus of the described a kind of electricity-related water system of claim one is: its another kind of welding method is for making the splitter structure on the surface to be welded of upper end cover (6), bottom end cover (8), upper end cover (6), the bottom end cover (8) that will embed distance piece (7) pass through the ultrasonic welding method seam together, form weld seam one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100054689A CN101476779A (en) | 2009-01-17 | 2009-01-17 | Compact anti-electric shock apparatus for electricity-related water system and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100054689A CN101476779A (en) | 2009-01-17 | 2009-01-17 | Compact anti-electric shock apparatus for electricity-related water system and manufacturing method thereof |
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| CN101476779A true CN101476779A (en) | 2009-07-08 |
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| CNA2009100054689A Pending CN101476779A (en) | 2009-01-17 | 2009-01-17 | Compact anti-electric shock apparatus for electricity-related water system and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701751A (en) * | 2009-11-19 | 2010-05-05 | 党路明 | Improved mosquito-repellent incense spiral winding-shaped electric shock preventing device structure and manufacture method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044334U (en) * | 1989-01-19 | 1989-09-13 | 廖信烟 | Safety rapid electric water heater |
| CN2267915Y (en) * | 1996-08-09 | 1997-11-19 | 冯季强 | Isostatic mould-core |
| CN1378060A (en) * | 2002-04-28 | 2002-11-06 | 路英梅 | Compact electric shock protector for electric water heater and its producing method |
| CN2570694Y (en) * | 2002-05-19 | 2003-09-03 | 路英梅 | Compact electric shock preventing device for electric water heater |
| JP2005164080A (en) * | 2003-11-28 | 2005-06-23 | Chugoku Electric Power Co Inc:The | Electric water heater, electric water heater component and cogeneration system manufacturing method using existing electric water heater |
| CN2832308Y (en) * | 2005-10-26 | 2006-11-01 | 江苏牧羊迈安德食品机械有限公司 | Centrifuge bottom flow spray nozzle |
| CN2926919Y (en) * | 2006-06-27 | 2007-07-25 | 娄底市碧波尔家用电器发展有限公司 | Safety insulator of electric water heater |
-
2009
- 2009-01-17 CN CNA2009100054689A patent/CN101476779A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044334U (en) * | 1989-01-19 | 1989-09-13 | 廖信烟 | Safety rapid electric water heater |
| CN2267915Y (en) * | 1996-08-09 | 1997-11-19 | 冯季强 | Isostatic mould-core |
| CN1378060A (en) * | 2002-04-28 | 2002-11-06 | 路英梅 | Compact electric shock protector for electric water heater and its producing method |
| CN2570694Y (en) * | 2002-05-19 | 2003-09-03 | 路英梅 | Compact electric shock preventing device for electric water heater |
| JP2005164080A (en) * | 2003-11-28 | 2005-06-23 | Chugoku Electric Power Co Inc:The | Electric water heater, electric water heater component and cogeneration system manufacturing method using existing electric water heater |
| CN2832308Y (en) * | 2005-10-26 | 2006-11-01 | 江苏牧羊迈安德食品机械有限公司 | Centrifuge bottom flow spray nozzle |
| CN2926919Y (en) * | 2006-06-27 | 2007-07-25 | 娄底市碧波尔家用电器发展有限公司 | Safety insulator of electric water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701751A (en) * | 2009-11-19 | 2010-05-05 | 党路明 | Improved mosquito-repellent incense spiral winding-shaped electric shock preventing device structure and manufacture method thereof |
| CN101701751B (en) * | 2009-11-19 | 2013-05-08 | 党路明 | Improved mosquito-repellent incense spiral winding-shaped electric shock preventing device structure and manufacture method thereof |
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