CN205372996U - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN205372996U CN205372996U CN201620095025.9U CN201620095025U CN205372996U CN 205372996 U CN205372996 U CN 205372996U CN 201620095025 U CN201620095025 U CN 201620095025U CN 205372996 U CN205372996 U CN 205372996U
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- shell
- hanging feet
- insulating part
- fixing hole
- wire
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Abstract
The utility model provides an electric water heater, includes shell, inner bag, inlet tube, outlet pipe, heating element and control assembly, all be equipped with fang dianqiang on inlet tube and the outlet pipe, the inner bag with insulated isolation between the shell, be equipped with electrical apparatus lid or electrical apparatus box on the shell, be equipped with the installation cavity in electrical apparatus lid or the electrical apparatus box, control assembly includes the circuit board, the circuit board with prevent that electric wall all is located in the installation cavity, the installation cavity with insulated isolation between the shell. According to the utility model provides a II types of electric water heater compare with prior art has following advantage: the utility model discloses a with insulated isolation between inner bag and the shell, when specifically using, even the electric leakage of the heating element in the inner bag, the shell also can not be electrified, and the use is safe and reliable more.
Description
Technical field
This utility model relates to a kind of electric heater.
Background technology
Electrothermal tube direct heating type electric water heater seen in the market is made up of electrothermal tube, sealing member, inner bag, heat-insulation layer and shell etc. and electric control system, only has one layer of magnesia powder insulating barrier as the insulation between heating wire and metal shell in the metal shell of its electrothermal tube adopted.In order to avoid insulation layer fails causes the charged generation causing electric leakage casualty accident of metal shell; must by metal shell ground connection to ensure when insulation layer fails metal shell is charged; by earth lead, electric current can being drained to the earth release, protection human body is not by electric leakage injury.The electric heater of this employing ground protection measure is exactly the electric heater of I appliances.It is true that earth lead can make earth resistance become big due to a variety of causes, such as corrosion, aging, connection is loosening.Once earth resistance becomes big; when occurring leaking electricity even wiring error: as time in phase line misconnection to ground wire; not only not having ground protection effect, also can make the charged electric shock accidents that causes of the water in electric heater by the metal shell of the electrothermal tube of ground connection on the contrary, consequence will be very serious.
It is true that in country's security appliance standard, give the correct method about processing problem with grounding already, it is simply that use II class electric heater.And II class electric heater does not have earth lead, it is possible to electric heater electric shock-prevention safety is accomplished ultimate attainment.But owing to II class electric heater requires to have the security features such as special double insulating structure and proof voltage are less higher than I electric appliances more than 2 times, leakage current requirement, these requirements cause on Vehicles Collected from Market electric heater almost without the technological difficulties of the electric water heater of the safer II electric appliances technology requirement that can meet the world, domestic safety criterion regulation.
I appliances: its protection against electric shock does not only rely on basic insulation and includes the utensil of an additional safety precaution measure.Its safeguard procedures are to be connected on the ground guard conductor in facility permanent wiring by accessible current-carrying part, so that just in case basic insulation lost efficacy, accessible conductive component will not be charged.
II appliances: its protection against electric shock does not only rely on basic insulation, and provides the utensil of additional safety precaution measure as double insulation or reinforced insulation.This appliances does not have protective grounding or relies on the measure of mounting condition.
Utility model content
Technical problem to be solved in the utility model is in that to overcome the deficiency of above-mentioned prior art, it is provided that a kind of simple in construction, easy to assembly, safe and reliable electric heater.
The main technical schemes that the electric heater provided according to this utility model adopts is: includes shell, inner bag, water inlet pipe, outlet pipe, heating assembly and controls assembly, described water inlet pipe and outlet pipe are equipped with anti-electricity wall, it is dielectrically separated between described inner bag and described shell, described shell is provided with electrical equipment lid or electrical appliance kit, it is provided with installation cavity in described electrical equipment lid or electrical appliance kit, described control assembly includes circuit board, described circuit board and anti-electricity wall are respectively positioned in described installation cavity, are dielectrically separated between described installation cavity and described shell.
The electric heater that utility model provides also adopts following attached technical scheme:
The outer wall of described shell is provided with proof and electric leakage-proof safety patch, and described installation cavity is relative with described proof and electric leakage-proof safety patch.
Also including connection box and wire-passing tube, described connection box is provided with edge, and described shell is provided with cable-through hole, described cable-through hole is relative with described installation cavity, described connection box inserts described cable-through hole, and described cable-through hole periphery is leaned in described card checkpost, and described wire-passing tube is between described shell and described inner bag；Described connection box is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube.
Described proof and electric leakage-proof safety patch is identical with the notch shape of described installation cavity.
The port of described electrical equipment lid compresses the edge of described proof and electric leakage-proof safety patch.
It is provided with tack coat between described proof and electric leakage-proof safety patch and described shell.
Described proof and electric leakage-proof safety sticks and is provided with cable hole, and described cable hole is relative with described cable-through hole.
Described proof and electric leakage-proof safety sticks and is additionally provided with into water pore and water outlet pore.
The surrounding of described cable hole, water inlet pore and water outlet pore is equipped with double-sided tape.
Also include connecting heating assembly and controlling the wire of assembly, one end of described wire is connected with heating assembly, the other end of described wire sequentially passes through described wire-passing tube, described connection box is connected with described circuit board, and the distance between wire and described outer casing inner wall in described wire-passing tube is 3mm-15mm；The distance between wire and described circuit board and described outer shell outer wall in described installation cavity is 3mm-15mm；The distance between wire and described cable-through hole inwall in described connection box is 3mm-15mm.
The outer wall of described shell is provided with outer hanging feet, and the outer wall of described inner bag is provided with interior hanging feet, described outer hanging feet and described interior hanging feet and is all connected with described shell, is all dielectrically separated between described shell and described outer hanging feet and described interior hanging feet.
Also include hanging feet bolt and hanging feet nut, described shell is provided with installing hole, described outer hanging feet is provided with the first fixing hole, and described interior hanging feet is provided with the second fixing hole, with described hanging feet nut screw connection after the first fixing hole, installing hole and described second fixing hole described in described hanging feet screw bolt passes；It is provided with the first insulating part between described first fixing hole and described installing hole, it is provided with the second insulating part between described second fixing hole and described installing hole, it is provided with the 3rd insulating part between described second fixing hole and described hanging feet nut, it is provided with the 4th insulating part between outer wall and the inwall of described second fixing hole of described hanging feet bolt, it is formed with gap between outer wall and the inwall of described installing hole of described hanging feet bolt, described hanging feet nut is coated with the 5th insulating part.
Described 5th insulating part is connected with described 3rd insulating part.
It is provided with the 6th insulating part between outer wall and the inwall of described installing hole of described hanging feet bolt.
Described first insulating part is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.
Described second insulating part is provided with the second insulation fixing hole, described 3rd insulating part is provided with the 3rd insulation fixing hole, described 4th insulating part is the annular boss being located at the 3rd insulation fixing hole place, described annular boss inserts described second insulation fixing hole, or the end of described annular boss leans the periphery of described second insulation fixing hole.
One end of described second insulating part and one end connection of described 3rd insulating part, the other end of described second insulating part and the other end snap-fit engagement of described 3rd insulating part.
Described second insulating part, described 3rd insulating part and described 4th insulating part are formed in one structure.
First the electric heater provided according to this utility model compared with prior art has the advantage that, this utility model is by being dielectrically separated between inner bag and shell, time specifically used, even if the heating assembly electric leakage in inner bag, shell is without charged, and use procedure is more safe and reliable；Secondly, it is dielectrically separated between installation cavity and the shell in electrical equipment lid；Time specifically used, even if the control assembly electric leakage in installation cavity, shell still will not be charged, and the safety of use procedure is protected again；Achieving II class electric heater, compared with prior art this utility model is without arranging earth lead, will not be charged because earth lead breaks down in use procedure, causes that casing of electric water heater is charged and causes electric shock accidents.
Accompanying drawing explanation
Fig. 1 is this utility model side-looking the structure chart cut open by electrical equipment lid.
Fig. 2 is this utility model structure chart when opening electrical equipment lid.
Fig. 3 is structure chart of the present utility model.
Fig. 4 is the sectional view of A-A in Fig. 3.
Fig. 5 is the enlarged drawing of B in Fig. 4.
Detailed description of the invention
Referring to Fig. 1 to Fig. 4, according to the electric heater embodiment that this utility model provides, including shell 1, inner bag 2, water inlet pipe 21, outlet pipe 22, heating assembly and control assembly, described water inlet pipe 21 and outlet pipe 22 are equipped with anti-electricity wall 10, it is dielectrically separated between described inner bag 2 and described shell 1, described shell 1 is provided with electrical equipment lid 11 or electrical appliance kit, it is provided with installation cavity 111 in described electrical equipment lid 11 or electrical appliance kit, described control assembly includes circuit board 3, described circuit board 3 and anti-electricity wall 10 are respectively positioned in described installation cavity 111, it is dielectrically separated between described installation cavity 111 and described shell 1.The present embodiment is preferably in arranging electrical equipment lid 11 on shell 1.First, this utility model is by being dielectrically separated between inner bag 2 and shell 1, and time specifically used, even if the heating assembly electric leakage in inner bag 2, shell 1 is without charged, and use procedure is more safe and reliable；Secondly, being dielectrically separated between installation cavity 111 and the shell 1 in electrical equipment lid 11, time specifically used, even if the control assembly electric leakage in installation cavity 111, shell 1 still will not be charged, and the safety of use procedure is protected again；Achieving II class electric heater, compared with prior art this utility model is without arranging earth lead, will not be charged because earth lead breaks down in use procedure, causes that casing of electric water heater 1 is charged and causes electric shock accidents.
Referring to Fig. 1 to Fig. 2, according to utility model the above embodiments, between described shell 1 and described inner bag 2, it is provided with foaming heat insulation insulant and insulating part.The outer wall of described shell 1 is provided with proof and electric leakage-proof safety patch 4, and it is relative that described installation cavity 111 pastes 4 with described proof and electric leakage-proof safety.It is provided with tack coat between described proof and electric leakage-proof safety patch 4 and described shell 1.Tack coat in the present embodiment is double faced adhesive tape.Proof and electric leakage-proof safety pastes 4 simple in construction and shell 1 is easy to connect, production cost is low.When arranging electrical appliance kit on shell 1, electrical appliance kit includes lower casing and upper cover, and lower casing is equivalent to the electrical equipment lid 11 in the present embodiment, and upper cover is equivalent to the proof and electric leakage-proof safety patch 4 in the present embodiment, and equally possible realization is dielectrically separated between installation cavity 111 and shell 1.
Referring to Fig. 2, according to utility model the above embodiments, also include connection box 51 and wire-passing tube 52, described connection box 51 is provided with edge, described shell 1 is provided with cable-through hole, and described cable-through hole is relative with described installation cavity 111, and described connection box 51 inserts described cable-through hole, described cable-through hole periphery is leaned in described card checkpost, and described wire-passing tube 52 is between described shell 1 and described inner bag 2；Described connection box 51 is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube 52.The setting of connection box 51 achieves being dielectrically separated between wire and cable-through hole, and the setting of wire-passing tube 52 strengthens being dielectrically separated between wire and shell 1 inwall.Described proof and electric leakage-proof safety patch 4 is additionally provided with into water pore and water outlet pore.Described proof and electric leakage-proof safety patch 4 is provided with cable hole, and described cable hole is relative with described cable-through hole.
Referring to Fig. 1 to Fig. 2, according to utility model the above embodiments, described proof and electric leakage-proof safety patch 4 is identical with the notch shape of described installation cavity 111.The port of described electrical equipment lid 11 compresses the edge of described proof and electric leakage-proof safety patch 4.The surrounding of described cable hole, water inlet pore and water outlet pore is equipped with double-sided tape.Adopt aforesaid way to be pasted by proof and electric leakage-proof safety and 4 be fixed on the outer wall of shell 1, fixed, easy to assembly, production cost is low.
Referring to Fig. 2, according to utility model the above embodiments, also include connecting heating assembly and controlling the wire (not shown) of assembly, one end of described wire is connected with heating assembly, the other end of described wire sequentially passes through described wire-passing tube 52, described connection box 51 is connected with described circuit board 3
The distance between wire and the inwall of described shell 1 in described wire-passing tube 52 is 3mm-15mm, and the present embodiment is preferably 9mm；The distance between wire and described circuit board 3 and described shell 1 outer wall in described installation cavity 111 is 3mm-15mm; the present embodiment is preferably 9mm; this distance coordinates the proof and electric leakage-proof safety patch 4 between circuit board 3 and shell 1, substantially increases the breakdown voltage making shell 1 charged because circuit board 3 is breakdown；The distance between wire and described cable-through hole inwall in described connection box 51 is 3mm-15mm, and the present embodiment is preferably 9mm.Distance between wire and cable-through hole inwall, coordinates connection box 51 to substantially increase the breakdown voltage making cable-through hole charged because wire is breakdown.
Referring to Fig. 1 to Fig. 5, according to utility model the above embodiments, the outer wall of described shell 1 is provided with outer hanging feet 12, the outer wall of described inner bag 2 is provided with interior hanging feet 23, described outer hanging feet 12 and described interior hanging feet 23 are all connected with described shell 1, are all dielectrically separated between described shell 1 and described outer hanging feet 12 and described interior hanging feet 23.Prevent interior hanging feet 23 charged and cause that shell 1 and outer hanging feet 12 are charged, again ensure the safety of this utility model use procedure.
Referring to Fig. 5, according to utility model the above embodiments, also include hanging feet bolt 61 and hanging feet nut 62, described shell 1 is provided with installing hole, described outer hanging feet 12 is provided with the first fixing hole, described interior hanging feet 23 is provided with the second fixing hole, and described hanging feet bolt 61 coordinates with described hanging feet nut 62 after sequentially passing through described first fixing hole, installing hole and described second fixing hole；The first insulating part 7 it is provided with between described first fixing hole and described installing hole, the second insulating part 81 it is provided with between described second fixing hole and described installing hole, it is provided with the 3rd insulating part 82 between described second fixing hole and described hanging feet nut 62, it is provided with the 4th insulating part 83 between outer wall and the inwall of described second fixing hole of described hanging feet bolt 61, it is formed with gap between outer wall and the inwall of described installing hole of described hanging feet bolt 61, described hanging feet nut 62 is coated with the 5th insulating part 9.Described 5th insulating part 9 is connected with described 3rd insulating part 82.Adopting said structure to realize outer hanging feet 12, insulation between shell 1 and interior hanging feet 23, simple in construction, easy to assembly, production cost is low.It is formed with gap between outer wall and the inwall of described installing hole of described hanging feet bolt 61, realize the insulation between installing hole and hanging feet bolt 61, can also adopt and be provided with the 6th insulating part between the outer wall and the inwall of described installing hole of described hanging feet bolt 61, realize the insulation between installing hole and hanging feet bolt 61.
Referring to Fig. 5, according to utility model the above embodiments, described first insulating part 7 is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.Adopt insulating washer as the first insulating part 7, it is not only simple in structure, easy to process, production cost is low, and it is easy to assembly, when first insulate the radius of fixing hole less than the radius of installing hole, will be dielectrically separated from installing hole through the first hanging feet bolt 61 insulating fixing hole, it is prevented that hanging feet bolt 61 is charged causes that shell 1 is charged.
Referring to Fig. 5, according to utility model the above embodiments, described second insulating part 81 is provided with the second insulation fixing hole, described 3rd insulating part 82 is provided with the 3rd insulation fixing hole, described 4th insulating part 83 is the annular boss being located at the 3rd insulation fixing hole place, described annular boss inserts described second insulation fixing hole, or the end of described annular boss leans the periphery of described second insulation fixing hole.The end of the annular boss in the present embodiment leans the periphery of the second insulation fixing hole, and hanging feet 23 in adopting said structure to realize, insulation between shell 1 and hanging feet bolt 61, simple in construction, parts are few, easy to assembly, reliability is high.
Referring to Fig. 5, according to utility model the above embodiments, one end of described second insulating part 81 and one end connection of described 3rd insulating part 82, the other end of described second insulating part 81 and the other end snap-fit engagement of described 3rd insulating part 82.Adopt this kind of structure, greatly facilitate the assembling of the second insulating part the 81, the 3rd insulating part 82 and the 4th insulating part 83, during assembling, 4th insulating part 83 is inserted the second fixing hole on interior hanging feet 23, by the second insulating part 81 and the 3rd insulating part 82 clamping, interior hanging feet 23 is clamped between the second insulating part 81 and the 3rd insulating part 82.
Referring to Fig. 5, according to utility model the above embodiments, described second insulating part 81, described 3rd insulating part 82 and described 4th insulating part 83 are formed in one structure.Easy to process, production cost is low.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, being appreciated that when without departing from principle of the present utility model and spirit can these embodiments be changed, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. an electric heater, including shell, inner bag, water inlet pipe, outlet pipe, heating assembly and control assembly, described water inlet pipe and outlet pipe are equipped with anti-electricity wall, it is characterized in that: be dielectrically separated between described inner bag and described shell, described shell is provided with electrical equipment lid or electrical appliance kit, is provided with installation cavity in described electrical equipment lid or electrical appliance kit, and described control assembly includes circuit board, described circuit board and anti-electricity wall are respectively positioned in described installation cavity, are dielectrically separated between described installation cavity and described shell.
2. electric heater according to claim 1, it is characterised in that: the outer wall of described shell is provided with proof and electric leakage-proof safety patch, and described installation cavity is relative with described proof and electric leakage-proof safety patch.
3. electric heater according to claim 2, it is characterised in that: the port of described electrical equipment lid compresses the edge of described proof and electric leakage-proof safety patch.
4. electric heater according to claim 2, it is characterized in that: also include connection box and wire-passing tube, described connection box is provided with edge, described shell is provided with cable-through hole, described cable-through hole is relative with described installation cavity, described connection box inserts described cable-through hole, and described cable-through hole periphery is leaned in described card checkpost, and described wire-passing tube is between described shell and described inner bag；Described connection box is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube.
5. electric heater according to claim 4, it is characterized in that: also include connecting heating assembly and controlling the wire of assembly, one end of described wire is connected with heating assembly, the other end of described wire sequentially passes through described wire-passing tube, described connection box is connected with described circuit board, and the distance between wire and described outer casing inner wall in described wire-passing tube is 3mm-15mm；The distance between wire and described circuit board and described outer shell outer wall in described installation cavity is 3mm-15mm；The distance between wire and described cable-through hole inwall in described connection box is 3mm-15mm.
6. the electric heater according to claim 1-5 any one, it is characterized in that: the outer wall of described shell is provided with outer hanging feet, the outer wall of described inner bag is provided with interior hanging feet, described outer hanging feet and described interior hanging feet are all connected with described shell, are all dielectrically separated between described shell and described outer hanging feet and described interior hanging feet.
7. electric heater according to claim 6, it is characterized in that: also include hanging feet bolt and hanging feet nut, described shell is provided with installing hole, described outer hanging feet is provided with the first fixing hole, described interior hanging feet is provided with the second fixing hole, with described hanging feet nut screw connection after the first fixing hole, installing hole and described second fixing hole described in described hanging feet screw bolt passes；It is provided with the first insulating part between described first fixing hole and described installing hole, it is provided with the second insulating part between described second fixing hole and described installing hole, it is provided with the 3rd insulating part between described second fixing hole and described hanging feet nut, it is provided with the 4th insulating part between outer wall and the inwall of described second fixing hole of described hanging feet bolt, it is formed with gap between outer wall and the inwall of described installing hole of described hanging feet bolt, described hanging feet nut is coated with the 5th insulating part.
8. electric heater according to claim 7, it is characterised in that: described first insulating part is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.
9. electric heater according to claim 7, it is characterized in that: described second insulating part is provided with the second insulation fixing hole, described 3rd insulating part is provided with the 3rd insulation fixing hole, described 4th insulating part is the annular boss being located at the 3rd insulation fixing hole place, and described annular boss inserts the described second end insulating fixing hole or described annular boss and leans the periphery of described second insulation fixing hole.
10. electric heater according to claim 9, it is characterised in that: one end of described second insulating part and one end connection of described 3rd insulating part, the other end of described second insulating part and the other end snap-fit engagement of described 3rd insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095025.9U CN205372996U (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095025.9U CN205372996U (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205372996U true CN205372996U (en) | 2016-07-06 |
Family
ID=56262178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095025.9U Active CN205372996U (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205372996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546809A (en) * | 2016-01-29 | 2016-05-04 | 宁波帅康热水器有限公司 | Electric water heater |
| CN106895575A (en) * | 2017-03-21 | 2017-06-27 | 宁波帅康热水器有限公司 | A kind of running water water heater |
-
2016
- 2016-01-29 CN CN201620095025.9U patent/CN205372996U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546809A (en) * | 2016-01-29 | 2016-05-04 | 宁波帅康热水器有限公司 | Electric water heater |
| CN106895575A (en) * | 2017-03-21 | 2017-06-27 | 宁波帅康热水器有限公司 | A kind of running water water heater |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |