CN212274230U

CN212274230U - PTC water electric heater

Info

Publication number: CN212274230U
Application number: CN201922481387.8U
Authority: CN
Inventors: 谭慧明
Original assignee: Taizhou Jinyu New Energy Auto Parts Co ltd
Current assignee: Taizhou Jinyu New Energy Auto Parts Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-01-01
Anticipated expiration: 2029-12-31

Abstract

The application discloses the utility model discloses a PTC water and electricity heater. Belong to heater technical field, this water electric heater can improve the thermal stability of rivers, and then reduces the scale deposit phenomenon, and simple structure, convenient to use. The water cooling device comprises a heating bar, an outer shell, an inner shell, a cold water cavity, a heating cavity and an end cover, wherein the outer shell is fixedly arranged on the outer side of the inner shell, the cold water cavity is formed between the outer shell and the inner shell, the heating cavity is arranged in the inner shell, and the end cover is provided with a water distribution hole for water distribution; heating strips are installed on the inner side of the inner shell, end covers are installed at the left end and the right end of the inner shell, and gaskets used for sealing are arranged between the heating strips and the end covers.

Description

PTC water electric heater

Technical Field

The utility model belongs to the technical field of the heater technique and specifically relates to a PTC water and electricity heater.

Background

At present, the PTC water electric heater adopts a metal shell, a PTC electric heating strip is inserted into the metal shell or is arranged inside the metal shell, and two ends of the PTC electric heating strip are provided with metal end covers (joints). When water is filled and electricity is used for heating, 1, as the water inlet and the water outlet are opposite in a straight-through mode, water is quickly filled from the water inlet to the water outlet, namely the flow speed of water in the PTC water heater is high, and the flow speed of water near the metal shell is low, so that the temperature of the water near the metal shell is high, the surface temperature of the metal shell is also high, and the heat conversion rate of a large amount of heat emitted from the surface of the metal shell to the periphery is reduced. 2. The joints of the two end covers are made of metal. When the water temperature is above 60 ℃, the surfaces of the metal shell and the joint are easy to corrode and scale.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve present water electric heater and have above-mentioned not enough, provide one kind and can improve the heat stability of rivers, and then reduce scale deposit phenomenon, and simple structure, convenient to use's PTC water electric heater.

The technical problem is solved by the following technical scheme:

a PTC water and electricity heater comprises a heating strip, an outer shell, an inner shell, a cold water cavity, a heating cavity and an end cover, wherein the outer shell is fixedly arranged on the outer side of the inner shell, the cold water cavity is formed between the outer shell and the inner shell, the heating cavity is arranged in the inner shell, and the end cover is provided with water distribution holes for heat exchange; heating strips are installed on the inner side of the inner shell, end covers are installed at the left end and the right end of the inner shell, and gaskets used for sealing are arranged between the heating strips and the end covers.

Optionally, the end cap is provided with a nut for mounting.

Optionally, the nut is located at the left end of the end cover, the water splitter is arranged at the right end of the end cover, the gasket is sleeved on the water splitter, and the gasket is provided with a fixing groove for installing the heating strips.

Optionally, the surface of the heating bar is coated with a teflon coating for scale prevention. When the heating bar works, scale can not be formed due to high temperature.

Optionally, the surfaces of the outer and inner shells are subjected to an anodic oxidation treatment for corrosion protection.

Optionally, the end cap is secured to the inside of the housing by a plurality of screws.

Optionally, the outer shell and the inner shell are both made of metal aluminum.

Optionally, the end cap is provided with a seat for mounting.

Optionally, the material of the end cap is plastic.

Optionally, the material of the nut is metallic copper.

The utility model discloses can reach following effect:

the utility model provides a PTC water electric heater, the utility model discloses a mode in inner shell branch cold water chamber, heating chamber avoids the high scale deposit of zone of heating high temperature and can reduce calorific loss, improves the heat stability of rivers, and then reduces the scale deposit phenomenon, and simple structure, convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of a PTC hydroelectric heater according to an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a schematic cross-sectional view of an outer shell in an embodiment of the invention;

fig. 4 is a schematic cross-sectional view of an inner shell according to an embodiment of the invention;

FIG. 5 is a schematic cross-sectional view of a heat bar according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a gasket according to an embodiment of the present invention;

fig. 7 is a plan view of an end cap in an embodiment of the invention.

The figures are numbered: the water heater comprises an outer shell 1, an inner shell 2, a water diversion hole 21, a cold water cavity 22, a heating cavity 23, a heating strip 3, a gasket 4, an end cover 5, a nut 51, a screw 6, a water diverter 7 and a support 8.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

In the embodiment, a PTC water electric heater is shown in fig. 1-7, and comprises a heating bar 3, an outer shell 1, an inner shell 2, a cold water cavity 22, a heating cavity 23 and an end cover 5, wherein the outer shell 1 is fixedly installed at the outer side of the inner shell 2, the cold water cavity 22 is formed between the outer shell 1 and the inner shell 2, the heating cavity 23 is arranged in the inner shell 2, and the end cover 5 is provided with a water diversion hole 21 for heat exchange; heating strip 3 is installed to 2 inboards of inner shell, end cover 5 that is used for sealed is all installed at both ends about inner shell 2, be equipped with between heating strip 3 and the end cover 5 and be used for sealed gasket 4.

Referring to fig. 1 and 7, the end cap is sleeved on the heating bar, and a nut 51 for installation is arranged at the left end of the end cap. The nut 51 is positioned at the left end of the end cover 5, the water diverter 7 is arranged at the right end of the end cover 5, and the gasket 4 is sleeved on the water diverter 7; the gasket 4 is provided with a fixing groove for mounting the heating bar 3.

Referring to fig. 1, the lower end of the end cap 5 is provided with a support 8 for mounting.

The surface of the heating bar 3 in this embodiment is coated with a teflon coating for scale prevention. The surfaces of the outer shell 1 and the inner shell 2 are subjected to anodic oxidation treatment for corrosion prevention. The end cap 5 is fixed inside the housing 1 by means of a number of screws 6. The materials of the outer shell 1 and the inner shell 2 are both metallic aluminum. The end cover 5 is made of plastic. The material of the nut 51 is copper. The gasket 4 is made of silica gel.

During assembly, the gasket 4 is firstly installed in the end cover 5, the heating strip 3 is installed in a fixing groove of the gasket 4, the metal inner shell 2 and the metal outer shell 1 are sequentially sleeved on the fixing groove, the gasket 4 is installed at the other end of the heating strip 3, then the end cover 5 is covered, and the fixing groove is fixed through the screw 6. When adding water, rivers get into cold water cavity 22 and then get into heating chamber 23 through distributive hole 21 and realize the water heating, because the temperature of the water of shell 1 and inner shell 2 contact is lower, and the surface temperature of shell 1 can not rise very much, so the heater need not do the heat preservation.

The utility model provides a PTC water electric heater can improve the heat stability of rivers, simple structure, convenient to use, and the reliability is high.

The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A PTC water and electricity heater is characterized by comprising a heating bar, an outer shell, an inner shell, a cold water cavity, a heating cavity and an end cover, wherein the outer shell is fixedly arranged outside the inner shell, the cold water cavity is formed between the outer shell and the inner shell, the heating cavity is arranged in the inner shell, and water distribution holes are formed in the end cover; heating strips are installed on the inner side of the inner shell, end covers are installed at the left end and the right end of the inner shell, and gaskets used for sealing are arranged between the heating strips and the end covers.

2. A PTC hydroelectric heater according to claim 1 in which the end caps are fitted over the heating strips, the end caps being provided with nuts for mounting.

3. The PTC hydroelectric heater according to claim 2, wherein the nut is located at the left end of the end cap, the right end of the end cap is provided with a water diverter, the gasket is sleeved on the water diverter, and the gasket is provided with a fixing groove for installing the heating strip.

4. A PTC hydroelectric heater according to claim 1, 2 or 3, in which the surface of the heating strips is coated with a teflon coating for anti-fouling.

5. A PTC hydroelectric heater according to claim 1, 2 or 3 in which the surfaces of the outer and inner shells are subjected to an anti-corrosive anodic oxidation treatment.

6. A PTC hydroelectric heater according to claim 1 in which the inner casing is secured to the inside of the outer casing by a plurality of screws.

7. A PTC hydroelectric heater according to claim 1 in which the material of the outer and inner shells is metallic aluminium.

8. A PTC hydroelectric heater according to claim 1 in which the lower right end of the housing is provided with a mounting bracket.

9. A PTC hydroelectric heater according to claim 1 in which the material of the end caps is plastic.

10. A PTC hydroelectric heater according to claim 2 in which the material of the nut is copper metal.