CN218920631U

CN218920631U - Heating pipe and electric water heater

Info

Publication number: CN218920631U
Application number: CN202222808833.3U
Authority: CN
Inventors: 林辉庆; 潘森林; 聂政; 洪宇光
Original assignee: Ningbo Youerduo Electric Co ltd
Current assignee: Ningbo Youerduo Electric Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-04-25
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a heating pipe, which belongs to the technical field of heating devices and comprises the following components: a housing; the heating assembly comprises a heating wire, a first wiring rod and a second wiring rod, wherein the heating wire, the first wiring rod and the second wiring rod are all arranged in the shell, and the first wiring rod, the heating wire and the second wiring rod are connected in series; and the thermal fuse link is arranged in the first wiring rod, and the heating component is disconnected when the thermal fuse link is fused. The electric water heater comprises the heating pipe. The beneficial effects of the utility model are as follows: the thermal link is directly arranged on the wiring rod in the heating component, so that when the heating pipe is out of control and overheated, the direct thermal link is directly fused to break the heating component, the reaction is very rapid, the thermal link is directly provided with a thermal fusing function during the production of the heating pipe, the thermal link is not required to be separately produced and assembled, and the production cost is greatly saved.

Description

Heating pipe and electric water heater

Technical Field

The utility model belongs to the technical field of heating devices, and relates to a heating pipe and an electric water heater.

Background

The water heater is a device for changing the temperature of cold water into hot water in a certain time by various physical principles, and can be divided into an electric water heater, a gas water heater, a solar water heater and the like according to different principles, wherein the water heater adopts the natural pressure of tap water, electric energy, light energy and gas energy to burn and heat the cold water and then spray the cold water from a spray head when working. Wherein, the heating pipe is the core component that is used for heating water in the water heater.

For example, an utility model patent with application number CN202121555960.6 provides a water heater, comprising: the shell is provided with a water inlet and a water outlet at two ends respectively, a heating cavity is arranged in the shell, and a water guide part is formed by extending towards the water outlet on the bottom of the heating cavity near one end of the water inlet, wherein the water guide part is provided with a water guide channel communicated with the water inlet; the heating part is arranged on the shell and is in nested fit with the water guide part, wherein the heating part is connected with the control board; and the overheat protector is arranged on the heating part and extends into the heating cavity, wherein the overheat protector is connected with the power line.

In summary, although some existing technical solutions provide an overheat protector for preventing the water heater from overheating, because the overheat protector is installed outside the heating pipe, the overheat protector still needs to be manufactured and assembled separately, which has the problems of untimely overheat reaction of the heating wire and high production cost, and has a large room for improvement.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a heating pipe and an electric water heater.

The aim of the utility model can be achieved by the following technical scheme: a heating tube, comprising:

a housing;

the heating assembly comprises a heating wire, a first wiring rod and a second wiring rod, wherein the heating wire, the first wiring rod and the second wiring rod are all arranged in the shell, and the first wiring rod, the heating wire and the second wiring rod are connected in series;

and the thermal fuse link is arranged in the first wiring rod, and the heating component is disconnected when the thermal fuse link is fused.

In one of the above heating pipes, the housing includes a straight portion and a spiral portion, and the straight portion is connected to the spiral portion.

In the above-described heating pipe, the thermal fuse is provided in the straight portion.

In the above-mentioned heating pipe, the first terminal bar includes first connecting portion and second connecting portion, first connecting portion with the heater strip is connected, the second connecting portion is used for being connected with the outside, the thermal fuse is located between first connecting portion and the second connecting portion.

In the above-mentioned heating pipe, the heating pipe further comprises an insulating heat conducting layer, wherein the insulating heat conducting layer is arranged between the shell and the heating component, and the heating component is separated from the shell through the insulating heat conducting layer.

In the above heating tube, pins are disposed at two ends of the housing, and the first terminal bar and the second terminal bar respectively extend out of the two pins.

In one of the above heating pipes, the pin is provided with an external thread portion for connecting with internal threads of other components.

Secondly, an electric water heater comprises the heating pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. the thermal link is directly arranged on the wiring rod in the heating component, so that when the heating pipe is out of control and overheated, the direct thermal link is directly fused to break the heating component, the reaction is very rapid, the thermal link is directly provided with a thermal fusing function during the production of the heating pipe, the thermal link is not required to be separately produced and assembled, and the production cost is greatly saved.

2. Because the thermal link is sensitive, if the thermal link is exposed to the external force, the thermal link may be disconnected without being heated, thereby causing the whole heating tube to fail.

3. The thermal link is located between first connecting portion and the second connecting portion, separates certain distance through first connecting portion between thermal link and the heater strip, prevents that the thermal link from being too near and unusual thermal fuse that leads to of heater strip at normal operating time.

4. The heating element is separated from the shell through the insulating heat conducting layer, and the insulating heat conducting layer can transfer the heat of the heating wire to the shell to prevent the current of the heating element from being conducted to the shell.

5. Both ends of the shell are provided with pins which are used for being installed on a part needing to use the installation tube, and the first wiring rod and the second wiring rod respectively extend out of the two pins so as to connect an input circuit and an output circuit.

Drawings

FIG. 1 is a schematic view of the internal structure of a heating tube according to the present utility model.

Fig. 2 is a schematic structural view of a heating element and a thermal fuse of the present utility model.

Fig. 3 is a schematic view of the external structure of the heating pipe according to the present utility model.

100, a housing; 110. a straight line portion; 120. a spiral part; 130. pins; 131. an external thread portion; 200. a heating assembly; 210. a heating wire; 220. a first terminal bar; 221. a first connection portion; 222. a second connecting portion; 230. a second terminal bar; 300. a thermal fuse; 400. an insulating heat conducting layer.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

As shown in fig. 1-3, a heating tube, comprising: the housing 100, the heating assembly 200, and the thermal fuse 300.

The heating assembly 200 includes a heating wire 210, a first wire rod 220 and a second wire rod 230, wherein the heating wire 210, the first wire rod 220 and the second wire rod 230 are all disposed in the housing 100, and the first wire rod 220, the heating wire rod 210 and the second wire rod 230 are connected in series.

Wherein the thermal link 300 is disposed in the first terminal bar 220, and the heating assembly 200 is disconnected when the thermal link 300 is fused.

In this embodiment, the thermal link 300 is directly disposed on the terminal rod in the heating assembly 200, so when the heating pipe is out of control and overheated, the thermal link 300 directly fuses to break the heating assembly 200, the reaction is very rapid, and the thermal link 300 is directly provided with the thermal fusing function during the production of the heating pipe, so that the thermal link 300 is not required to be separately produced and assembled, and the production cost is greatly saved.

As shown in fig. 1 and 3, in the above embodiment, the housing 100 includes the linear portion 110 and the spiral portion 120, and the linear portion 110 is connected to the spiral portion 120.

In the present embodiment, the spiral part 120 is provided around the straight part 110, and the straight part 110 is connected to the spiral part 120, thereby increasing the surface area of the heating pipe and improving the heating efficiency by making full use of the space.

As shown in fig. 1 and 3, the thermal link 300 is provided in the straight portion 110 in the above embodiment.

In this embodiment, since the thermal link 300 is sensitive, if the thermal link 300 is physically broken without being heated by external force, the entire heat generating tube may be failed, and in order to prevent this, the thermal link 300 is disposed at the straight portion 110 without selecting the screw portion 120, which is complicated and difficult to install.

As shown in fig. 1 and 2, in the above embodiment, the first terminal bar 220 includes the first connection portion 221 and the second connection portion 222, the first connection portion 221 is connected to the heating wire 210, the second connection portion 222 is used for connection with the outside, and the thermal link 300 is located between the first connection portion 221 and the second connection portion 222.

In this embodiment, the thermal link 300 is located between the first connection portion 221 and the second connection portion 222, and the thermal link 300 is spaced from the heating wire 210 by a certain distance through the first connection portion 221, so as to prevent abnormal thermal fusing caused by the thermal link 300 being too close to the heating wire 210 during normal operation of the heating wire 210.

As shown in fig. 1, the above embodiment further includes an insulating and heat conducting layer 400, wherein the insulating and heat conducting layer 400 is disposed between the housing 100 and the heating assembly 200, and the heating assembly 200 is separated from the housing 100 by the insulating and heat conducting layer 400.

In the present embodiment, the heating assembly 200 is separated from the case 100 by the insulating and heat conducting layer 400, and the insulating and heat conducting layer 400 can transfer heat of a heating wire to the case 100 to prevent current of the heating assembly 200 from being conducted to the case 100.

As shown in fig. 1 and 3, in the above embodiment, the two ends of the housing 100 are provided with the pins 130, and the first and second connection bars 220 and 230 respectively protrude from the two pins 130.

In the present embodiment, both ends of the housing 100 are provided with pins 130, the pins 130 are used for mounting on a component requiring the use of a mounting heating pipe, and the first and second connection bars 220 and 230 respectively protrude from both pins 130 to connect circuits for input and output.

Preferably, the pin 130 is provided with an external threaded portion 131, and the external threaded portion 131 is used for connecting with internal threads of other components.

Secondly, an electric water heater comprises the heating pipe.

Claims

1. A heating tube, comprising:

a housing;

2. A heating tube as set forth in claim 1, wherein: the housing includes a straight portion and a spiral portion, the straight portion being connected with the spiral portion.

3. A heating tube as set forth in claim 2, wherein: the thermal fuse is disposed in the straight portion.

4. A heating tube as set forth in claim 1, wherein: the first wiring rod comprises a first connecting portion and a second connecting portion, the first connecting portion is connected with the heating wire, the second connecting portion is used for being connected with the outside, and the thermal fuse is located between the first connecting portion and the second connecting portion.

5. A heating tube as set forth in claim 1, wherein: the heating device further comprises an insulating heat conducting layer, wherein the insulating heat conducting layer is arranged between the shell and the heating component, and the heating component is separated from the shell through the insulating heat conducting layer.

6. A heating tube as set forth in claim 1, wherein: the two ends of the shell are provided with pins, and the first wiring rod and the second wiring rod extend out of the two pins respectively.

7. A heating tube as set forth in claim 6, wherein: the pin is provided with an external threaded portion for connecting with internal threads of other components.

8. An electric water heater comprising a heating tube as claimed in any one of claims 1-7.