CN103868239B - Electric heater - Google Patents

Electric heater Download PDF

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Publication number
CN103868239B
CN103868239B CN201410087296.5A CN201410087296A CN103868239B CN 103868239 B CN103868239 B CN 103868239B CN 201410087296 A CN201410087296 A CN 201410087296A CN 103868239 B CN103868239 B CN 103868239B
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CN
China
Prior art keywords
water pipe
pipe head
water
electric heater
insulation tube
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Active
Application number
CN201410087296.5A
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Chinese (zh)
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CN103868239A (en
Inventor
叶远璋
梁天生
陈派树
赵猛
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Guangdong Vanward New Electric Co Ltd
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Guangdong Vanward New Electric Co Ltd
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Priority to CN201410087296.5A priority Critical patent/CN103868239B/en
Publication of CN103868239A publication Critical patent/CN103868239A/en
Application granted granted Critical
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Abstract

A kind of electric heater, including shell, inner bag, outlet pipe, water outlet insulation tube and water pipe head, technical characteristics are stretched into inner bag in one end of the water pipe head and set, outlet pipe stretches into inner bag and sets through water pipe head, water outlet insulation tube is tightly connected with water pipe head, and water outlet insulation tube is connected with outlet pipe.The present invention can not only be effectively increased the weld strength between water pipe head and inner bag, beneficial to welding procedure, and can ensure that the sealing effectiveness of water pipe head and outlet pipe and water outlet insulation tube, moreover it is possible to save water pipe head taking up room outside the tank, reduce product cost.

Description

Electric heater
Technical field
The invention belongs to electric heater field, more particularly to a kind of electric heater.
Background technology
Existing electric heater is that outlet pipe is fixed in inner bag, and generally wall welds a water pipe head outside the tank, goes out Water pipe is stretched into inner bag through water pipe head.So outlet pipe is positioned by water pipe head, while connecting the water outlet outside inner bag Insulation tube, with to user's hot-water supply.And this connected mode that water pipe head is welded on inner bladder outer wall is possessed into following defects:
First, its weld strength is inadequate, and welding procedure is difficult in the axis of pitch of horizontal inner bag and water pipe head The orthogonality relation of heart line(For vertical electric heater, it is difficult to realize vertical axis and the water pipe head center of vertical inner bag The parallel relation of line), and then it is unfavorable for being tightly connected for water pipe head and outlet pipe and water outlet insulation tube;Again, to make water pipe Stable connection between joint and outlet pipe or water outlet insulation tube, need to fully ensure that water pipe head and outlet pipe or water outlet insulation tube Between contact area, this directly increases the volume of water pipe head, water pipe head is taken larger space, so have to make Large volume of shell is used, product cost is directly increased.To overcome these defects, spy is developed to electric heater.
The content of the invention
The technical problems to be solved by the invention are to provide for a kind of electric heater, and it can not only be effectively increased water pipe head Weld strength between inner bag, and beneficial to welding procedure, can ensure that the sealing of water pipe head and outlet pipe and water outlet insulation tube Effect, moreover it is possible to save taking up room for water pipe head, reduces product cost.
The present invention solve its technical problem use technical scheme be:A kind of electric heater, including shell, inner bag, water outlet Pipe, water outlet insulation tube and water pipe head, one end of the water pipe head are stretched into inner bag and are set, and outlet pipe is stretched through water pipe head Enter inner bag setting, water outlet insulation tube is tightly connected with water pipe head, and water outlet insulation tube is connected with outlet pipe, the water outlet insulation tube Between shell and inner bag;Water pipe head is provided with the cavity volume with the first positioning table, and the water outlet insulation tube upstream end is provided with convex Shoulder, convex shoulder stretches into cavity volume and presses in the first positioning table one sealing ring.
According to one embodiment that the present invention is provided, the inner bag is enamel inner container, and inner bag one end is stretched into water pipe head End sets arc-shaped transitional surface, can prevent burst porcelain phenomenon.
According to one embodiment that the present invention is provided, a convex shoulder neck formed below, positioning piece is arranged in the neck, The keeper is fixedly connected with water pipe head simultaneously.Thus the attachment structure of a kind of water pipe head and water outlet insulation tube is provided, Attachment structure process is simple, the low cost, and reliability is high.
According to one embodiment that the present invention is provided, the sealing ring is in the setting of falling peviform, and sealing ring has taper wall body, Convex shoulder stretches into sealing ring and struts the outer peripheral face of taper wall body.Sealing effectiveness can be so improved, while avoiding water pipe head inwall Contacted with the direct extruding of water outlet insulation tube, protect water outlet insulation tube.
According to one embodiment that the present invention is provided, the cavity volume inwall of the water pipe head is provided with oblique inwall, oblique inwall Coordinate with the outer peripheral face of sealing ring taper wall body, and the tilt angle alpha inwall more oblique than cavity volume of outer peripheral face inclination angle beta small 1 ~ 5 , i.e. 1 °≤β-α≤5 °;Further to improve the sealing property of the conical surface.
According to one embodiment that the present invention is provided, sealing is set between the convex shoulder and keeper of the water outlet insulation tube Pad, further improves sealing effectiveness, while the rigid contact between water outlet insulation tube and keeper can be avoided.
According to one embodiment that the present invention is provided, the keeper is an open type nut, in the cavity volume of water pipe head Wall sets internal thread, has the external screw thread that is connected with the internal thread on open type nut, open type nut be connected through a screw thread by Water outlet insulation tube presses in the cavity volume of water pipe head.The dismounting process of each parts can so be facilitated.
According to one embodiment that the present invention is provided, the bottom of the open type nut is provided with hole, is the dismounting of parts Instrument provides fulcrum.
According to one embodiment that the present invention is provided, the second positioning table is additionally provided with the cavity volume, the second positioning table hangs There is a positioning sleeve, the positioning sleeve includes body and hanging platform, hanging platform end sets depressed part, hanging platform is fastened on the second positioning table and close Between seal, the outlet pipe is provided with flange, and outlet pipe passes through body, and the flange of outlet pipe is fastened on depressed part and sealing ring Between.Thus for the connection of outlet pipe and water pipe head provides a kind of process is simple, low cost, and reliability structure high.
According to one embodiment that the present invention is provided, the electric heater is Horizontal electric water heater, the lateral shaft of its inner bag Line is orthogonal with the center line of water pipe head, and then ensures water pipe head with outlet pipe and the sealing effectiveness of water outlet insulation tube.Accordingly Ground, when electric heater is vertical electric heater, the vertical axis of its inner bag and the centerline parallel of water pipe head or overlaps, can Ensure water pipe head with outlet pipe and the sealing effectiveness of water outlet insulation tube.
Beneficial effect of the present invention produced by compared with background technology:In due to the present invention, one end of water pipe head stretched into Set in courage, outlet pipe stretches into inner bag and sets through water pipe head, and water outlet insulation tube is tightly connected with water pipe head, water outlet insulation Pipe is connected with outlet pipe.Therefore the present invention can not only be effectively increased the weld strength between water pipe head and inner bag, and beneficial to welding Technique, can ensure that water pipe head with outlet pipe and the sealing effectiveness of water outlet insulation tube, moreover it is possible to save taking up room for water pipe head, Reduce product cost.
Brief description of the drawings:Fig. 1 is partial structural diagram of the invention;
Fig. 2 is mplifying structure schematic diagram at A in Fig. 1;
Fig. 3 is outlet pipe 03, water outlet insulation tube 04, water pipe head 05, sealing ring 06, open type nut 07, positioning in Fig. 2 The exploded isometric structural representation of set 08;
Fig. 4 is the dimensional structure diagram of water pipe head 05;
Fig. 5 is the cross-sectional view of water pipe head 05;
Fig. 6 is the dimensional structure diagram of water outlet insulation tube 04;
Fig. 7 is the cross-sectional view of sealing ring 06.
Specific embodiment:Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, Identical label represents identical part in wherein each figure.Below with reference to Description of Drawings embodiment be it is exemplary, only For explaining the present invention, and it is not understood to limitation of the present invention.
As shown in Figure 1 and Figure 2, the electric heater in the present embodiment is horizontal electric heater, including shell 01, inner bag 02, Outlet pipe 03, water outlet insulation tube 04, water pipe head 05.Inner bag 02 is enamel inner container.
One end of water pipe head 05 is stretched into inner bag 02 through wall of inner container, and water pipe head 05 passes through welding procedure and inner bag 02 is sealedly and fixedly connected.Preferably, the end setting arc-shaped transitional surface 51 of the one end of inner bag 02 is stretched into water pipe head 05, to prevent Generation burst porcelain phenomenon.Outlet pipe 03 stretches into inner bag 02 and sets through water pipe head 05, and outlet pipe 03 is fixed in water pipe head 05, Water outlet insulation tube 04 is tightly connected with water pipe head 05, and water outlet insulation tube 04 is connected with outlet pipe 03.Shell 01 is accommodated in described Courage 02, outlet pipe 03, water outlet insulation tube 04 and water pipe head 05, wherein water outlet insulation tube 04 connect external heat through shell 01 Water supply.
In just stretching into inner bag 02 due to one end of water pipe head 05, the other end set positioned at the outer wall of inner bag 02, beneficial to welding Technique so that the axis of pitch of inner bag 02 and the center line orthogonal relationship of water pipe head 05 after welding, to ensure outlet pipe 03 Center line coincided with the tube hub line of the longitudinal direction of water outlet insulation tube 04, so as to fully ensure that water pipe head 05 and outlet pipe 03 or Being tightly connected between water outlet insulation tube 04;Meanwhile, this structure can save the space that water pipe head is taken between shell and inner bag, It is cost-effective adaptively to use the shell of small volume;The weldering between water pipe head 05 and inner bag 02 can also be effectively increased Connect intensity.
It is further inner bag 02, outlet pipe 03, water outlet insulation tube 04, water pipe head in above-mentioned electric heater in the present embodiment A kind of process is simple, low cost, and reliability attachment structure high are provided between 05.
The water pipe head 05 is provided with a cavity volume 52, referring to Fig. 4, Fig. 5, the inwall of cavity volume 52 have the first positioning table 521, Oblique inwall 522, set the positioning table 524 of female inwall 523 and second.
Water outlet insulation tube 04 shown in Figure 6, its upstream end is provided with a convex shoulder 41, the neck formed below of the convex shoulder 41 Portion 42.
Referring to shown in Fig. 3, Fig. 7, the sealing ring 06 has taper wall body 61, the taper in peviform, sealing ring 06 Wall body 61 has inclined outer peripheral face 611.
Referring to the keeper in Fig. 3, that is, it is provided with the open type nut 07 in external screw thread 071 and hole 072.Referring to going out in Fig. 3 Water pipe 03 and positioning sleeve 08, the outlet pipe 03 have flange 31, and positioning sleeve 08 includes body 81 and hanging platform 82, the end of hanging platform 82 Depressed part 822 is set.
Referring to Fig. 2, Fig. 3, water pipe head 05 is welded on inner bag 02, and the convex shoulder 41 of water outlet insulation tube 04 stretches into water pipe head 05 cavity volume 52, and sealing ring 06 is pressed in the first positioning table 521, convex shoulder 41 stretches into sealing ring 06 and struts taper wall body 061 outer peripheral face 611, oblique inwall 522 and the outer peripheral face 611 of sealing ring taper wall body 061 of cavity volume 52 coordinate, and cavity volume is tiltedly interior The inclination angle beta of wall 522 more than outer peripheral face 611 tilt angle alpha, specifically, α be 50 ~ 75 between any angle of inclination, β is any angle of inclination between 51 ~ 80, while inclination angle beta is more than tilt angle alpha 1 ~ 5, i.e., 1 °≤β-α≤5 °.Therefore And the sealing ring of falling peviform 06 can both ensure sealing effectiveness, and convex shoulder 41 can be protected.
The card of neck 42 of the lower section of convex shoulder 41 sets an open type nut 07, and the inwall 523 of cavity volume 52 of water pipe head 05 sets interior Screw thread, has the external screw thread 071 being connected with the internal thread on open type nut 07, open type nut 07 is connected through a screw thread will be gone out Water insulation tube 04 presses in the cavity volume 52 of water pipe head 05, and the bottom of open type nut 07 is provided with hole 72, is open type spiral shell The dismounting of cap 07 provides facility.So as to realize being tightly connected for water pipe head 05 and water outlet insulation tube 04.Just due to open type spiral shell Cap 07 is arranged at the neck 42 of the lower section of convex shoulder 41, when turning open type nut 07 and pressing water outlet insulation tube 04 upwards, it is to avoid Directly contact of the open type nut 07 with sealing ring 06 and extruding, so as to can guarantee that sealing ring 06 is convex with water outlet insulation tube 04 The static matching relationship of shoulder 41, the first positioning table 521 of water pipe head 05, makes sealing ring 06 not by direct friction, finally ensures The sealing effectiveness of sealing ring 06.
The hanging platform 82 of positioning sleeve 08 is hung on the second positioning table 524 of water pipe head 05, while hanging platform 82 is fastened on second Between positioning table 524 and sealing ring 06;Outlet pipe 03 passes through body 81, and the flange 31 of outlet pipe 03 is fastened on depressed part 822 Between sealing ring 06.So as to realize being fixedly connected for water pipe head 05 and outlet pipe 03.

Claims (10)

1. a kind of electric heater, including shell(01), inner bag(02), outlet pipe(03), water outlet insulation tube(04)And water pipe head (05), it is characterised in that:The water pipe head(05)One end stretch into inner bag(02)Interior setting, outlet pipe(03)Connect through water pipe Head(05)Stretch into inner bag(02)Set, water outlet insulation tube(04)With water pipe head(05)It is tightly connected, water outlet insulation tube(04)With Outlet pipe(03)Connection, the water outlet insulation tube(04)Located at shell(01)With inner bag(02)Between;
Water pipe head(05)It is provided with the first positioning table of band(521)Cavity volume(52), the water outlet insulation tube(04)Upstream end is provided with Convex shoulder(41), convex shoulder(41)Stretch into cavity volume(52)And by a sealing ring(06)Press in the first positioning table(521).
2. electric heater according to claim 1, it is characterised in that the inner bag(02)It is enamel inner container, water pipe head (05)Stretch into inner bag(02)The end of one end sets arc-shaped transitional surface(51).
3. electric heater according to claim 1, it is characterised in that the convex shoulder(41)A neck formed below(42), one Keeper is arranged in the neck(42), the keeper is while and water pipe head(05)It is fixedly connected.
4. electric heater according to claim 3, it is characterised in that the sealing ring(06)In the setting of falling peviform, sealing ring (06)With taper wall body(61), convex shoulder(41)Stretch into sealing ring(06)And strut taper wall body(061)Outer peripheral face(611).
5. electric heater according to claim 4, it is characterised in that the water pipe head(05)Cavity volume(52)Inwall sets It is equipped with oblique inwall(522), oblique inwall(522)With sealing ring taper wall body(061)Outer peripheral face(611)Coordinate, and outer peripheral face (611)Tilt angle alpha inwall more oblique than cavity volume(522)Inclination angle beta it is small by 1 ~ 5.
6. electric heater according to claim 3, it is characterised in that the water outlet insulation tube(04)Convex shoulder(41)With it is fixed Sealing gasket is set between the part of position.
7. electric heater according to claim 3, it is characterised in that the keeper is an open type nut(07), water pipe Joint(05)Cavity volume(52)Inwall(523)Internal thread, open type nut are set(07)It is upper outer with what is be connected with the internal thread Screw thread(071), open type nut(07)It is connected through a screw thread water outlet insulation tube(04)Press in water pipe head(05)Cavity volume (52)It is interior.
8. electric heater according to claim 7, it is characterised in that the open type nut(07)Bottom be provided with hole (72).
9. the electric heater according to any one of claim 3 ~ 8, it is characterised in that the cavity volume(52)Inside it is additionally provided with Two positioning tables(524), the second positioning table(524)It is linked with positioning sleeve(08), the positioning sleeve(08)Including body(81)And extension Platform(82), hanging platform(82)End sets depressed part(822), hanging platform(82)It is fastened on the second positioning table(524)And sealing ring(06) Between, the outlet pipe(03)It is provided with flange(31), outlet pipe(03)Through body(81), and outlet pipe(03)Flange(31) It is fastened on depressed part(822)With sealing ring(06)Between.
10. electric heater according to claim 8, it is characterised in that the electric heater is Horizontal electric water heater, in it Courage(02)Axis of pitch and water pipe head(05)Center line it is orthogonal.
CN201410087296.5A 2014-03-11 2014-03-11 Electric heater Active CN103868239B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410087296.5A CN103868239B (en) 2014-03-11 2014-03-11 Electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410087296.5A CN103868239B (en) 2014-03-11 2014-03-11 Electric heater

Publications (2)

Publication Number Publication Date
CN103868239A CN103868239A (en) 2014-06-18
CN103868239B true CN103868239B (en) 2017-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104378851A (en) * 2014-11-11 2015-02-25 深圳格普斯电热技术有限公司 Pressure-bearing type sealing cartridge used on spraying pipe inside electrothermal film
CN104676893B (en) * 2015-01-22 2017-10-20 苏州高通云膜纳米技术有限公司 A kind of pressure-bearing type heater of electrothermal film glass tube heating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2591505Y (en) * 2002-12-17 2003-12-10 王锦林 Safety electric water heater equiped with insulation valve and insulation tube combined leakage insulation electric device
CN2847151Y (en) * 2005-12-22 2006-12-13 朱培世 Electric isolated safety water tank
CN201954752U (en) * 2011-02-28 2011-08-31 珠海格力电器股份有限公司 Electric water heater
CN203785270U (en) * 2014-03-11 2014-08-20 广东万和电气有限公司 Electric water heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2591505Y (en) * 2002-12-17 2003-12-10 王锦林 Safety electric water heater equiped with insulation valve and insulation tube combined leakage insulation electric device
CN2847151Y (en) * 2005-12-22 2006-12-13 朱培世 Electric isolated safety water tank
CN201954752U (en) * 2011-02-28 2011-08-31 珠海格力电器股份有限公司 Electric water heater
CN203785270U (en) * 2014-03-11 2014-08-20 广东万和电气有限公司 Electric water heater

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