CN214014560U - Heating pipe for water dispenser - Google Patents

Abstract

The utility model provides a heating pipe for a water dispenser, belonging to the technical field of heaters; the method comprises the following steps: the heating pipe comprises a heating pipe body, a heating pipe body and a heating pipe body, wherein the heating pipe body is an insulating heat-conducting piece, and a printing surface is formed on the peripheral surface of the heating pipe body; a thick film resistor disposed on the printing surface; the insulating pipe body is sleeved on the heating pipe body. The utility model has the advantages that: an insulating layer is not required to be arranged outside the heating pipe body.

Description

Heating pipe for water dispenser

Technical Field

The utility model belongs to the technical field of the heater, a heating pipe that drinking machine was used is related to.

Background

The water dispenser is a common electric appliance in modern life, and each family and working unit can be provided with the water dispenser to supply water. The existing water dispenser has some defects, wherein the most important point is that the 'hot water' required to be supplied needs to be heated in advance, and the heating needs a certain time.

In order to solve the problems, quick-heating water dispensers are gradually developed in the market, and have the advantages of extremely high heating speed, no need of heating in advance and heat preservation, and the quick-heating water dispensers gradually replace the existing water dispensers under certain use environments. The heating pipe corresponding to the water dispenser is mostly a component in which a heating resistor is sleeved outside a glass pipe coated with an insulating layer, and the insulating layer is coated outside the resistor again.

For example, an invention patent with publication number CN109788589A provides a circular tube thick film heater and a preparation process thereof, which belongs to the field of heaters, and comprises a substrate cylinder and a dielectric layer, wherein the dielectric layer is printed on the outer side of the substrate cylinder, and further comprises a resistance layer, a conductor layer, a protection layer and an installation fixing plate, wherein the resistance layer and the conductor layer are both printed on the dielectric layer, and the protection layer is printed on the resistance layer. The resistance layer is composed of resistance wires, the resistance wires are wound on the dielectric layer, the interval between the wound resistance wires is 12-18 microns, a hot water pipe groove is arranged in the substrate cylinder, and the hot water pipe groove is wound on the inner side of the substrate cylinder. Resistance line through the resistance layer that sets up is for encircleing in the outside of base plate drum, and the hot water pipe groove of the inboard of base plate drum also sets up to encircleing the structure, and the encircleing of resistance line and hot water pipe groove is walked the line and is all unanimous simultaneously to make the efficiency of heating higher, the speed of water heating is faster, and the utilization ratio of electric energy is higher, forms an energy-saving hot water heater better.

In summary, although some existing technical solutions solve the problem of large power consumption in heating, there still exists a problem that an additional insulating layer needs to be added outside the circular tube, and there still exists a large space for improvement.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and providing a heating pipe for a water dispenser.

The purpose of the utility model can be realized by the following technical proposal: a heating tube for a water dispenser, comprising: the heating pipe comprises a heating pipe body, a heating pipe body and a heating pipe body, wherein the heating pipe body is an insulating heat-conducting piece, and a printing surface is formed on the peripheral surface of the heating pipe body; a thick film resistor disposed on the printing surface; the insulating pipe body is sleeved on the heating pipe body.

Preferably, the thick film resistor includes at least two axial portions, a connecting portion is disposed between two adjacent axial portions, and each axial portion is sequentially connected through the connecting portion.

Preferably, two of the axial portions at both ends of the thick film resistor are formed with electrode terminals.

Preferably, the electrode end is of an L-shaped structure.

Preferably, the heating tube body is a silicon nitride tube.

Preferably, the insulating tube body is a magnesium oxide tube.

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

1. the thick film resistor is directly printed outside the heating pipe body and the insulating pipe body is sleeved, so that the manufacturing and processing difficulty of the heating pipe is greatly reduced, the heat conducting performance of the heating pipe is improved, the water dispenser is heated more quickly, an insulating layer is not required to be arranged outside the heating pipe body, the size of the heating pipe is reduced to a certain extent, and the trend of overall light weight of the water dispenser is met.

2. The actual shape of thick film resistor connects gradually for the curved resistance of a plurality of S types to can disassemble into a plurality of axial parts and connecting portion, thereby make thick film resistor evenly distributed on the heating pipe body, it is further, when thick film resistor generates heat, even to the heat distribution of heating pipe body conduction, thereby make the interior hydrothermal of rivers passageway even, the cold and hot uneven condition can not appear.

3. The heating pipe body is the silicon nitride pipe, and the silicon nitride pipe is insulating heat-conducting member, guarantees can not electrically conduct when the heat of conduction thick film resistor to the hardness of silicon nitride pipe is high and wear-resisting, and it is less to make rivers pass through rivers passageway wearing and tearing when with the certain speed, long service life.

4. The insulating body is the magnesium oxide pipe, and the magnesium oxide pipe is the higher insulator of melting point to the magnesium oxide pipe is difficult to the deformation, can guarantee can not influence the external world when thick film resistor takes place the condition such as short circuit.

Drawings

Fig. 1 is a schematic structural view of the heating pipe of the present invention.

Fig. 2 is a schematic structural view of another view angle of the heating pipe of the present invention.

Fig. 3 is a sectional view of the heating pipe of the present invention.

In the figure, 100, a heating pipe body; 200. a thick film resistor; 210. an axial portion; 211. an electrode terminal; 220. a connecting portion; 300. an insulating tube body; 400. a water flow channel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, a heating pipe for a water dispenser includes: the heating tube body 100 is an insulating heat-conducting member, and the heating tube body 100 may be an alumina ceramic member or a silicon nitride member, as long as the heat-conducting member has good electrical insulation properties. The heating tube body 100 is a tubular structure, an internal channel of the heating tube body 100 is a water flow channel 400, and a printing surface (the printing surface is not noted in the figure) is formed on the circumferential surface of the heating tube body 100;

a thick film resistor 200 disposed on the printing surface, wherein the thick film resistor 200 is a conventional resistor printed by a thick film process, and in the present embodiment, the thick film resistor 200 is actually mounted by directly printing the thick film resistor 200 on the printing surface;

the insulating tube 300 is sleeved on the heating tube body 100, and the insulating tube 300 is mainly used for preventing the thick film resistor 200 from generating electric leakage and preventing the thick film resistor 200 from short circuit caused by falling of external dust.

In the in-service use process, when water in the drinking water machine passes through rivers passageway 400, carry out the circular telegram to thick film resistor 200, thick film resistor 200 generates heat with electric energy conversion to heat energy, because heating pipe body 100 is insulating heat-conducting member, can conduct thick film resistor 200's heat energy to aquatic.

It should be noted that, in the prior art, the structure of heating pipe mostly is established the insulating tube or is set up the insulating layer at the glass outside of tubes cover, prints thick film resistance again, establishes the insulating tube or sets up the insulating layer at thick film resistance outside of tubes cover again, and this kind of prior art has increaseed the manufacturing and processing degree of difficulty of heating pipe promptly to the thickness of heating pipe becomes thick, and heat conductivility worsens.

In the above embodiment, the thick film resistor 200 is directly printed outside the heating pipe body 100 and the insulating pipe body 300 is sleeved, so that the manufacturing and processing difficulty of the heating pipe is greatly reduced, and the heat conductivity of the heating pipe is improved, so that the water dispenser is heated more quickly, and an insulating layer is not required to be arranged outside the heating pipe body 100, so that the volume of the heating pipe is reduced to a certain extent, and the trend of light weight of the water dispenser is met.

As shown in fig. 1 and 2, in addition to the above-described embodiment, the thick film resistor 200 includes at least two axial portions 210, the axial portions 210 are long strip resistors along the axial direction, the connection portion 220 is provided between two adjacent axial portions 210, the connection portion 220 is a short strip resistor along the circumferential direction, and the axial portions 210 are sequentially connected by the connection portion 220, so that the thick film resistor 200 is actually formed by sequentially connecting a plurality of resistors having S-shaped curves, and the thick film resistor 200 is integrally printed on the printing surface in terms of manufacturing process.

Preferably, the actual shape of thick film resistor 200 connects gradually for the curved resistance of a plurality of S types to can disassemble into a plurality of axial parts 210 and connecting portion 220, thereby make thick film resistor 200 evenly distributed on heating pipe body 100, further, when thick film resistor 200 generates heat, the heat distribution to heating pipe body 100 conduction is even, thereby makes the interior hydrothermal of rivers passageway 400 be heated evenly, the uneven condition of cold and hot can not appear.

As shown in fig. 1 and 2, in the above embodiment, the electrode terminals 211 are formed on both axial portions 210 located at both ends of the thick film resistor 200, and the electrode terminals 211 are connected to external wires by soldering.

Preferably, the electrode terminals 211 formed at the two axial portions 210 at the two ends of the thick-film resistor 200 and welded with the external wires are used for providing an external power source for the thick-film resistor 200, so that the thick-film resistor 200 generates heat and is heated by the water supplied by the heat conduction of the heating tube body 100.

As shown in fig. 1, in the above embodiment, the electrode terminals 211 have an L-shaped structure, and the two electrode terminals 211 are symmetrically distributed and close to each other.

Preferably, the electrode end 211 is of an L-shaped structure, so as to reserve a certain space for welding and further fixing an external wire, and the wire can be welded at one axial end of the electrode end 211.

As shown in fig. 1, 2, and 3, in the above embodiment, the heating pipe body 100 is a silicon nitride pipe.

Preferably, the heating pipe body 100 is a silicon nitride pipe, and the silicon nitride pipe is an insulating heat-conducting member, so that the thick film resistor 200 is not electrically conducted while conducting heat, and the silicon nitride pipe has high hardness and is wear-resistant, so that water flow passes through the water flow channel 400 at a certain speed, and the water flow channel is less worn and has a long service life.

As shown in fig. 3, in addition to the above embodiment, the insulating tube 300 is a magnesium oxide tube.

Preferably, the insulating tube 300 is a magnesium oxide tube, which is an insulator with a high melting point, and the magnesium oxide tube is not easily deformed, so that the thick film resistor 200 is not affected by short circuit.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (6)

1. A heating pipe for a water dispenser, comprising:

the heating pipe comprises a heating pipe body, a heating pipe body and a heating pipe body, wherein the heating pipe body is an insulating heat-conducting piece, and a printing surface is formed on the peripheral surface of the heating pipe body;

a thick film resistor disposed on the printing surface;

the insulating pipe body is sleeved on the heating pipe body.

2. A heating pipe for a water dispenser as claimed in claim 1, wherein: the thick film resistor comprises at least two axial parts, wherein a connecting part is arranged between every two adjacent axial parts, and each axial part is sequentially connected through the connecting part.

3. A heating pipe for a water dispenser as claimed in claim 2, wherein: and two axial parts positioned at two ends of the thick film resistor are both provided with electrode ends.

4. A heating pipe for a water dispenser as claimed in claim 3, wherein: the electrode end is of an L-shaped structure.

5. A heating pipe for a water dispenser as claimed in claim 1 or 4, wherein: the heating pipe body is a silicon nitride pipe.

6. A heating pipe for a water dispenser as claimed in claim 5, wherein: the insulating pipe body is a magnesium oxide pipe.

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