CN213038067U - Drying heater of washing machine - Google Patents

Abstract

The utility model discloses a washing machine stoving heater is equipped with hot air channel on the body, the hot air channel both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat the core and is located in the hot air channel, PTC generates heat the core and spanes hot air channel setting and both ends respectively with wall connection in the hot air channel, the heating panel setting generates heat core one side at PTC, and the heating panel generates heat core extending direction S type along PTC and sets up form a plurality of successions in the hot air channel the air inlet end is to the heating gap that air-out end direction extends. Through above-mentioned washing machine drying heater of optimal design for the hot-blast source is more close the wind channel export, and in the energy transmission in-process, the heat loss is little, and when ambient temperature risees, self resistance grow gradually, and along with it power can decline gradually, and power stop changes after ambient temperature is stable, thereby reaches energy-conserving effect, adopts PTC drying heater to generate heat rapidly simultaneously, and the inside aluminum sheet crimping that adopts of heater is compacter, and the thermal efficiency is higher.

Description

Drying heater of washing machine

Technical Field

The utility model relates to a washing machine heater field especially relates to a washing machine stoving heater.

Background

Washing machines have become one of the essential appliances in household appliances, and are evolving continuously in response to the development of technology, and from semi-automatic washing machines to full-automatic washing machines, washing machines have more and more powerful functions, and indeed bring convenience to people. However, the existing washing machine has the following disadvantages: 1. after people wash clothes, people habitually close the door of the washing machine, but the inside of the washing machine is always in a damp state, so that the inside of the washing machine is moldy; 2. when the washing machine is used for a long time, a large amount of mould is generated due to the fact that the mould is not cleaned frequently, and the mould is attached to clothes when the washing machine is used for washing, so that the influence on the skin of people is generated.

In order to satisfy the above requirements, the drying heater for the washing machine should be produced. The drying heater can dry the interior of the washing machine in time, so that the interior of the washing machine is always in a dry state, and the interior of the washing machine is prevented from mildewing.

The clothes drying device in the existing washing machine is composed of a washing barrel, a condensing pipe for condensing wet air coming out of the washing barrel, external cold water, a drying tunnel, a fan positioned in the drying tunnel and used for sucking air and an electric heater for heating air. The drying circulation system of the existing drying type washing machine has the following defects: 1. in order to achieve an effective drying rate, the electric heater for heating low-temperature air has high power consumption and high drying temperature, and is difficult to meet the requirements of a large amount of heat-sensitive clothes, so that the range of clothes suitable for the existing high-temperature clothes drying process is very narrow. 2. The traditional electric heating pipe is filled in a steel pipe by adopting a traditional metal heating wire and insulating powder, so that the surface temperature of the steel pipe is increased when a fan fails in the heating mode, and the steel pipe emits red light to cause the risk of fire; therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a washing machine stoving heater.

The utility model provides a pair of washing machine stoving heater, include: the PTC heating element comprises a body, a PTC heating core and a heat dissipation plate;

be equipped with hot air duct on the body, the hot air duct both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat the core and is located in the hot air duct, PTC generate heat the core and span hot air duct set up and both ends respectively with hot air duct inner wall connection, the heating panel setting is in PTC generate heat core one side, the heating panel setting will PTC generate heat core both sides will separate into a plurality of successions in the hot air duct the heating gap that the air inlet end extends to air-out end direction.

Preferably, the heat radiating plate is disposed along the PTC heating core extending direction S-shaped.

Preferably, one end of each heat dissipation plate extends out in an inclined mode in the direction far away from the PTC heating core, the heat dissipation plates are sequentially arranged at intervals in the extending direction of the PTC heating core, a heating gap is formed between every two adjacent heat dissipation plates, and the heating gap is in a wavy structure perpendicular to the extending direction of the hot air channel.

Preferably, the heat-insulating plate comprises a plurality of PTC heating cores, the PTC heating cores are sequentially arranged in the hot air channel at intervals to form a plurality of sub-channels arranged in parallel in the hot air channel, and a heat-radiating plate is arranged in each sub-channel.

Preferably, the PTC heating core comprises a heat pipe and a PTC heating sheet, and the PTC heating sheet is located in the heat pipe.

Preferably, the two sides of the PTC heating sheet are connected with electrode strips.

Preferably, the PTC heating sheet and the electrode strips are externally coated with an insulating material, which may be an insulating film, a silicon cloth, or the like.

Preferably, the heat conduction pipe and the heat dissipation plate are both made of aluminum material.

Preferably, the PTC heating sheet is made of a semiconductor ceramic material based on BaTiO 3.

Preferably, the heat dissipation plate and the side wall of the PTC heating core are bonded or fixed by brazing through a high-temperature silica gel material.

Preferably, the body includes annular structure's base and annular structure's apron, is equipped with on the base along the annular installation cavity that extends, and the core and the heating panel that generate heat are installed in the installation cavity, the base lateral wall is equipped with the draw-in groove, the apron is located installation cavity top and apron periphery be equipped with the buckle that the draw-in groove corresponds the setting. The heat conduction pipe and the heat dissipation plate are both made of aluminum materials.

The utility model discloses in, the washing machine stoving heater that provides is equipped with hot air channel on the body, the hot air channel both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat the core and is located in the hot air channel, PTC generates heat the core and spanes hot air channel set up and both ends respectively with wall connection in the hot air channel, the heating panel setting generates heat the core both sides at PTC, and the heating panel generates heat the core extending direction S type along PTC and sets up form a plurality of successions in the hot air channel the air inlet end is to the heating gap that air-out end direction extends. Through above-mentioned washing machine drying heater of optimal design for the hot-blast source is more close the wind channel export, and in the energy transmission in-process, the heat loss is little, and when ambient temperature risees, self resistance grow gradually, and along with it power can decline gradually, and power stop changes after ambient temperature is stable, thereby reaches energy-conserving effect, adopts PTC drying heater to generate heat rapidly simultaneously, and the inside aluminum sheet crimping that adopts of heater is compacter, and the thermal efficiency is higher.

Drawings

Fig. 1 is a schematic structural view of a drying heater of a washing machine according to the present invention.

Fig. 2 is a schematic structural diagram of the PTC heating core and the heat dissipation plate of the drying heater of the washing machine of the present invention.

Fig. 3 is a schematic structural view of the PTC heating core of the drying heater of the washing machine of the present invention.

Fig. 4 is another schematic structural diagram of the PTC heating core and the heat dissipation plate of the drying heater of the washing machine of the present invention.

Detailed Description

As shown in fig. 1 to 3, fig. 1 is the utility model provides a washing machine drying heater's schematic structure diagram, fig. 2 is the utility model provides a washing machine drying heater's PTC generates heat core and a structural schematic diagram of heating panel complex, fig. 3 is the utility model provides a washing machine drying heater's PTC generates heat core's schematic structure diagram, fig. 4 is the utility model provides a washing machine drying heater's PTC generates heat core and another kind of structural schematic diagram of heating panel complex.

Referring to fig. 1 to 4, the utility model provides a washing machine drying heater, include: the body, PTC heating core 2, heat-dissipating plate 3;

be equipped with hot air duct on the body, the hot air duct both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat core 2 and is located in the hot air duct, PTC generate heat core 2 spanes hot air duct set up and both ends respectively with hot air duct inner wall connection, heating panel 3 sets up in PTC generate heat core 2 both sides, and heating panel 3 sets up and will PTC generate heat core 2 both sides divide into a plurality of successions in the hot air duct the heating gap that the air inlet end extends to air-out end direction.

In the specific working process of the washing machine drying heater of the embodiment, the heat generated by the PTC heating core 2 is dissipated in the hot air channel through the heat dissipation plate, so that the air is heated and heated after passing through the heating gap between the heat dissipation plates.

In this embodiment, the washing machine stoving heater that provides is equipped with hot air channel on the body, the hot air channel both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat core 2 and is located in the hot air channel, PTC generates heat core 2 and spanes hot air channel setting and both ends respectively with hot air channel inner wall connection, heating panel setting generate heat core 2 both sides at PTC, and the heating panel setting is in form a plurality of successions in the hot air channel the heating gap that the air inlet end extends to air-out end direction. Through above-mentioned washing machine drying heater of optimal design for the hot-blast source is more close the wind channel export, and in the energy transmission in-process, the heat loss is little, and when ambient temperature risees, self resistance grow gradually, and along with it power can decline gradually, and power stop changes after ambient temperature is stable, thereby reaches energy-conserving effect, adopts PTC drying heater to generate heat rapidly simultaneously, and the inside aluminum sheet crimping that adopts of heater is compacter, and the thermal efficiency is higher.

The PTC heater is a heater which generates heat through the PTC thermistor and then radiates heat through the radiating aluminum strip assembly to finally realize heat transmission, and has the advantages of constant-temperature heating, no naked flame, high heat conversion rate, rapid temperature rise, safety, energy conservation, little influence of power supply voltage, long natural service life and the like.

Referring to fig. 2, in one design of the heat dissipation plate, the heat dissipation plate 3 is disposed along the extending direction S of the PTC heating core 2, so as to increase the heat dissipation area and improve the heat dissipation efficiency.

Referring to fig. 4, in another design of the heat dissipation plate, the heat dissipation plate includes a plurality of heat dissipation plates, one end of each heat dissipation plate extends out in an inclined manner in a direction away from the PTC heating core, the plurality of heat dissipation plates are sequentially arranged at intervals along the extending direction of the PTC heating core, and a heating gap is formed between every two adjacent heat dissipation plates, and the heating gap is in a wavy structure in a direction perpendicular to the extending direction of the hot air channel. In this design, the heat sink can be formed integrally with the PTC heat generating core, reducing the bonding process and cost.

In the specific embodiment, the PTC heating core 2 is included, the PTC heating cores 2 are sequentially arranged in the hot air channel at intervals to form a plurality of sub-channels arranged in parallel, and a heat dissipation plate 3 is arranged in each sub-channel to increase the heating efficiency.

In the specific design mode of the PTC heating core 2, the PTC heating core 2 comprises a heat pipe 21 and a PTC heating sheet 22, the PTC heating sheet 22 is located in the heat pipe 21, and two ends of the PTC heating sheet 22 are connected with electrode strips 23.

In the specific material selection of the heating sheet, the PTC heating sheet 22 adopts a BaTiO 3-based semiconductor ceramic material, and the BaTiO 3-based semiconductor ceramic material has the characteristics of resistance, rapid temperature rise, automatic temperature control when encountering fan faults and long service life.

In other embodiments, the heat dissipation plate 3 and the sidewall of the PTC heating core 2 are bonded by using a high temperature silicone material.

In another embodiment, the PTC heating sheet 22 and the electrode strips 23 are coated with the insulating film 4 to provide waterproof function inside the washing machine, and the surface of the product is non-charged, so that the electric performance is safe and reliable.

In the concrete design of body, the body includes annular structure's base 11 and annular structure's apron 12, is equipped with along the annular installation cavity that extends on the base 11, and the core 2 and the heating panel 3 that generate heat are installed in the installation cavity, the 11 lateral walls of base are equipped with the draw-in groove, and apron 12 is located installation cavity top and apron 12 periphery be equipped with the buckle that the draw-in groove corresponds the setting.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. A washer drying heater, comprising: the PTC heating element comprises a body, a PTC heating core (2) and a heat dissipation plate (3);

be equipped with hot air duct on the body, the hot air duct both ends are equipped with air inlet end and air-out end respectively, and PTC generates heat core (2) and is located in the hot air duct, PTC generate heat core (2) span hot air duct set up and both ends respectively with hot air duct inner wall connection, heating panel (3) set up in PTC generate heat core (2) both sides will separate into a plurality of successions in the hot air duct the heating gap that the air inlet end extends to air-out end direction.

2. A washing machine drying heater according to claim 1, characterized in that the heat radiation plate (3) is arranged in an S-shape along the extending direction of the PTC heat generating core (2).

3. A washing machine drying heater according to claim 1, characterized by comprising a plurality of heat dissipation plates, one end of each heat dissipation plate extends obliquely away from the PTC heating core, the plurality of heat dissipation plates are sequentially arranged at intervals along the extending direction of the PTC heating core, and a heating gap is formed between every two adjacent heat dissipation plates and is in a wavy structure in the direction perpendicular to the extending direction of the hot air channel.

4. The drying heater of the washing machine according to claim 1, characterized by comprising a plurality of PTC heating cores (2), wherein the plurality of PTC heating cores (2) are sequentially arranged in the hot air channel at intervals to form a plurality of sub-channels arranged in parallel in the hot air channel, and a heat dissipation plate (3) is arranged in each sub-channel.

5. A washing machine drying heater according to claim 1, characterized in that the PTC heat generating core (2) comprises a heat pipe (21), a PTC heat generating sheet (22), the PTC heat generating sheet (22) is located in the heat pipe (21).

6. The drying heater of the washing machine according to claim 5, characterized in that the PTC heating sheet (22) is connected with electrode strips (23) at both sides.

7. The washing machine drying heater according to claim 6, characterized in that the PTC heating sheet (22) and the electrode strip (23) are externally coated with an insulating material.

8. The drying heater of washing machine according to claim 5, characterized in that the heat pipe (21) and the heat dissipating plate (3) are made of aluminum material, and the PTC heating sheet (22) is made of BaTiO 3-based semiconductor ceramic material.

9. The drying heater of the washing machine according to claim 1, characterized in that the heat dissipation plate (3) and the side wall of the PTC heating core (2) are fixed by high temperature silica gel material bonding or soldering.

10. The drying heater of the washing machine according to claim 1, characterized in that the body comprises a base (11) with a ring structure and a cover plate (12) with a ring structure, a mounting cavity extending along the ring is arranged on the base (11), the heating core (2) and the heat dissipation plate (3) are mounted in the mounting cavity, a clamping groove is arranged on the side wall of the base (11), the cover plate (12) is positioned on the top of the mounting cavity, and a buckle corresponding to the clamping groove is arranged on the periphery of the cover plate (12).

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