Heating device and washing machine

Abstract

The utility model relates to the technical field of washing machines, and provides a heating device and a washing machine. The heating device is arranged in an air duct communicated with a roller and comprises a heating assembly, the heating assembly comprises a heater and a heat conduction pipe, the heater heats the air duct and the heat conduction pipe, the heat conduction pipe is provided with a water inlet and a water outlet which are communicated, and the water outlet is connected with the roller. According to the heating device, the washing water in the heat conduction pipe and the air in the air duct can be heated at the same time through the heater, water and air can be heated only through one heating device, the arrangement space in the washing machine is saved, and the space utilization rate is increased conveniently.

Description

Technical Field

[0001] The present disclosure relates to the technical field of washing machines, and in particular, to a heating device and a washing machine. Background Art

[0002] With the improvement of people's living standards, people have higher requirements for clothes washing. Most of the existing washing machines mostly use cold water spraying, and it is impossible to ensure high cleaning ability for different degrees of dirt on different materials. Of course, there are also some washing machines with heating functions, but the washing and drying use two independent heating devices to separately heat the washing water and the drying hot air, which not only occupies a large space but also has certain difficulties in space layout. Summary of the Utility Model

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a heating device and a washing machine.

[0004] In a first aspect of the present disclosure, a heating device is provided, which is arranged in a duct communicated with a drum, and includes a heating assembly. The heating assembly includes a heater and a heat conducting pipe. The heater heats the duct and the heat conducting pipe. The heat conducting pipe has a through water inlet and a water outlet, and the water outlet is connected to the drum.

[0005] In some embodiments, the water inlet is connected to a water inlet valve through a first three-way valve. The first three-way valve has a first inlet, a second inlet and a first outlet;

[0006] The first inlet is communicated with the water inlet valve, and the first outlet is used for communicating with the water inlet to input the heated washing water into the drum;

[0007] The second inlet is used for communicating with the outlet of the drum, and a circulation pump is arranged between the second inlet and the outlet of the drum to circulate and heat the washing water in the drum.

[0008] In some embodiments, the water outlet is connected to the drum through a second three-way valve. The second three-way valve has a third inlet, a second outlet and a third outlet;

[0009] The third inlet is used for communicating with the water outlet, and the second outlet is used for communicating with the inlet of the drum to input the heated washing water into the drum;

[0010] The third outlet is used for communicating with the washing machine drain outlet to discharge the heated washing water in the heat conducting pipe.

[0011] In some embodiments, the heat conduction tube includes a first bent section and a second bent section connected to each other. The first bent section and the second bent section are spaced apart, and a first installation space is formed between the first bent section and the second bent section. The heater is disposed in the first installation space, and two opposite surfaces of the heater are respectively attached to the first bent section and the second bent section.

[0012] In some embodiments, both the first bent section and the second bent section include a plurality of connected sub-bent sections, and the plurality of sub-bent sections are arranged side by side to cover the surface of the heater.

[0013] In some embodiments, the heating device further includes a fixing member. The heating assembly is disposed in the air duct through the fixing member. A second installation space is formed on the fixing member, and the heating assembly is inserted into the second installation space.

[0014] In some embodiments, the fixing member includes a first side plate and a second side plate. The first side plate and the second side plate are respectively used to be clamped in first and second card slots spaced apart on the inner wall of the air duct, so as to form the second installation space between the first side plate and the second side plate.

[0015] In some embodiments, heat dissipation fins are provided on the outer wall of the heat conduction tube.

[0016] In some embodiments, the heating assembly further includes a thermostat, and the thermostat is disposed on the outer wall of the heat conduction tube.

[0017] The second aspect of the present disclosure provides a washing machine, including a body, a drum, and the heating device as described in any one of the above. The drum is disposed in the body, an air duct is provided outside the body, and the heating assembly is disposed on the inner wall of the air duct;

[0018] The air duct has a through air inlet and an air outlet. A fan is provided at the air inlet, and the air outlet is communicated with the drum.

[0019] The technical solutions provided by the embodiments of the present disclosure have the following advantages compared with the prior art:

[0020] The heating device provided by the present disclosure is arranged in the air duct communicating with the drum, and includes a heating assembly. The heating assembly includes a heater and a heat conduction pipe. The heater heats the air duct and the heat conduction pipe. The heat conduction pipe has a through water inlet and a water outlet, and the water outlet is connected to the drum to convey washing water to the drum through the heat conduction pipe. When the heater works, the washing water flowing through the heat conduction pipe can be heated through the heat conduction pipe, and then hot water can be provided to the drum to wash clothes with the hot water. At the same time, the heating assembly is arranged in the air duct, and the temperature of the air duct can be increased through the heater, and then air at a higher temperature can be output to the drum to dry clothes. Only one heating device can heat both water and air, saving the layout space in the washing machine and facilitating the improvement of space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of a heating device according to an embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of a heating assembly according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a washing machine according to an embodiment of the present invention.

[0026] In the figure: 1, body; 11, air duct; 12, air inlet; 13, air outlet; 2, heating assembly; 21, heater; 22, heat conduction pipe; 221, water inlet; 222, water outlet; 223, first bending section; 224, second bending section; 225, extension section; 226, connection section; 3, fixing member; 31, first side plate; 32, second side plate; 4, temperature controller; 5, drum; 6, fan; 7, motor; 8, door seal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to more clearly understand the above objects, features and advantages of the present disclosure, the following will further describe the solutions of the present disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0028] In the following description, numerous specific details are set forth to provide a thorough understanding of the present disclosure. However, the present disclosure may be practiced in other ways different from those described herein. Obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] The heating device and the washing machine will be described in detail through specific embodiments as follows:

[0030] Referring to Figures 1 to 3 As shown, a heating device provided in some embodiments of the present utility model is disposed in an air duct 11 communicating with a drum 5, and includes a heating assembly 2. The heating assembly 2 includes a heater 21 and a heat conduction tube 22. The heater 21 heats the air duct 11 and the heat conduction tube 22. The heat conduction tube 22 has a through water inlet 221 and a water outlet 222. The water outlet 222 is connected to the drum 5 to convey washing water to the drum 5 through the heat conduction tube 22.

[0031] When the heater 21 operates, the washing water flowing through the heat conduction tube 22 can be heated through the heat conduction tube 22, and then hot water can be provided to the drum 5 to wash the clothes with the hot water. At the same time, the heating assembly 2 is disposed in the air duct 11, and the temperature of the air in the air duct 11 can be increased through the heater 21, and then air at a higher temperature can be output to the drum 5 to dry the clothes. By using only one heating device, both water and air can be heated, saving the layout space in the washing machine and facilitating the improvement of space utilization rate.

[0032] It should be noted that when the heater 21 heats, it can adopt a direct heating method, such as directly attaching the heater 21 to the heat conduction tube 22 to heat the heat conduction tube 22, or an indirect heating method, such as heating the air in the air duct 11 and then transferring the heat to the heat conduction tube 22 through hot air to heat the heat conduction tube 22.

[0033] Specifically, an air duct 11 is formed outside the body 1 of the washing machine. The heating assembly 2 is disposed in the air duct 11. The air duct 11 has a through air inlet 12 and an air outlet 13. The air inlet 12 is correspondingly disposed with a blower 6, and the air outlet 13 is connected to the drum 5 to convey flowing air to the drum 5 through the blower 6. Under the action of the heater 21, the temperature of the air in the air duct 11 rises to output air at a higher temperature to the drum 5 to improve the drying efficiency.

[0034] In some embodiments, the water inlet 221 is connected to the water inlet valve through a first three-way valve. The first three-way valve has a first inlet, a second inlet, and a first outlet. The first inlet is in communication with the water inlet valve, and the first outlet is for communicating with the water inlet 221 to input the heated washing water into the drum 5. That is to say, the washing water from the water inlet valve can flow out through the first outlet of the first three-way valve, enter the heat conduction tube 22 through the water inlet 221, and then flow through the heat conduction tube 22 to the inside of the drum 5. When the heater 21 works, it can provide hot water to the inside of the drum 5 to improve the cleaning ability of the washing machine and avoid damaging the clothes; when the heater 21 does not work, cold water can be directly sprayed on the clothes for washing.

[0035] The second inlet is for communicating with the outlet of the drum 5, and a circulation pump is provided between the second inlet and the outlet of the drum 5 to circulate and heat the washing water in the drum 5. That is to say, the washing water in the drum 5 can be communicated with the second inlet of the first three-way valve through the outlet of the drum 5. The circulation pump between the second inlet and the outlet of the drum 5 can pump the washing water in the drum 5 into the first three-way valve. The washing water can flow out through the first outlet and be heated through the heat conduction tube 22. It can heat the washing water during the washing process and can also repeatedly heat the washing water to keep the washing water at a preset temperature, which can improve the flexibility during the washing process.

[0036] In some embodiments, the water outlet 222 is connected to the drum 5 through a second three-way valve. The second three-way valve has a third inlet, a second outlet, and a third outlet. The third inlet is for communicating with the water outlet 222, and the second outlet is for communicating with the inlet of the drum 5 to input the heated washing water into the drum 5. Specifically, the washing water in the heat conduction tube 22 flows out through the water outlet 222 and enters the third inlet of the second three-way valve. The third inlet is in communication with the second outlet, and after passing through the second outlet, it can directly flow into the inside of the drum 5, thereby realizing the water injection of the drum 5.

[0037] Further, the third outlet is for communicating with the washing machine drain outlet to discharge the heated washing water in the heat conduction tube 22. That is to say, the washing water in the heat conduction tube 22 flows out through the water outlet 222 and enters the third inlet of the second three-way valve. The third inlet is in communication with the third outlet, and the washing water can be directly discharged from the washing machine drain outlet after passing through the third outlet. That is, the heated washing water does not pass through the drum 5 but is directly discharged outside the washing machine. Furthermore, the washing water at too high a temperature can be directly discharged. In the case where low temperature is required, there is no need to turn off the heater 21 and open the water inlet valve. The washing water in the heat conduction tube 22 can be directly replaced with low-temperature washing water without frequently turning on or off the heater 21. The operation is simple and the service life can be improved. Specifically, the third outlet can be connected to a drain pipe provided between the outlet of the drum 5 and the washing machine drain outlet to share the same drain pipe with the washing water in the drum 5, which can make the structure compact.

[0038] In some embodiments, with reference to Figure 2 as shown, the heat conduction tube 22 includes a first bent section 223 and a second bent section 224 connected to each other. The first bent section 223 and the second bent section 224 are arranged at intervals, and a first installation space is formed between the first bent section 223 and the second bent section 224. The heater 21 is arranged in the first installation space. The two opposite surfaces of the heater 21 are respectively attached to the first bent section 223 and the second bent section 224, so as to increase the contact area between the heater 21 and the first bent section 223 and the second bent section 224, thereby improving the heating efficiency.

[0039] Specifically, the heater 21 can be adhesively connected to the first bent section 223 and the second bent section 224 to fix the heater 21 in the first installation space and prevent displacement. Of course, the heater 21 and the first bent section 223 and the second bent section 224 can also be connected in other ways, which are not limited in this disclosure and can be specifically set according to actual needs.

[0040] Furthermore, both the first bent section 223 and the second bent section 224 include a plurality of connected sub-bent sections. The plurality of sub-bent sections are arranged side by side to cover the surface of the heater 21. That is to say, the shapes of the plurality of sub-bent sections are adapted to the surface shape of the heater 21, which can further increase the contact area between the sub-bent sections and the heater 21, thereby improving the heating efficiency. Of course, the plurality of sub-bent sections can also be arranged in other ways, which are not limited in this disclosure, as long as they can be attached to the surface of the heater 21 and the washing water in the sub-bent sections can be heated by the heater 21.

[0041] When specifically implemented, with reference to Figure 2 as shown, the first bent section 223 and the second bent section 224 are connected by a connecting section 226. Extension sections 225 are arranged at one end of the first bent section 223 far from the connecting section 226 and one end of the second bent section 224 far from the connecting section 226. The ends of the extension sections 225 far from the first bent section 223 and the second bent section 224 extend out of the air duct 11, so as to facilitate the connection between the first bent section 223 and the water inlet valve through the extension section 225, and the connection between the second bent section 224 and the drum 5. Of course, the extension sections 225 can also be arranged inside the air duct 11 according to actual needs, which are not limited in this disclosure, as long as water inlets 221 and water outlets 222 can be respectively formed at the ends of the extension sections 225 to supply washing water into the drum 5.

[0042] In some embodiments, the heating device of the present disclosure further includes a fixing member 3. A second installation space is formed on the fixing member 3, and the heating assembly 2 is inserted into the second installation space. Then, the heating assembly 2 is fixed in the air duct 11 through the fixing member 3, preventing the heating assembly 2 from shaking in the air duct 11.

[0043] Specifically, as shown in Figure 2 , the fixing member 3 includes a first side plate 31 and a second side plate 32. First slots and second slots are spaced on the inner wall of the air duct 11. The first side plate 31 and the second side plate 32 are correspondingly clamped in the first slots and the second slots, that is, the first side plate 31 and the second side plate 32 are spaced apart, and then a second installation space can be formed between the first side plate 31 and the second side plate 32. Among them, the setting positions of the first slots and the second slots can be specifically set according to actual needs.

[0044] Exemplarily, as shown in Figure 2 , the air duct 11 is in the shape of a rectangular parallelepiped cavity. The first slots and the second slots are respectively arranged on the relatively arranged inner walls on both sides of the air duct 11. The first side plate 31 and the second side plate 32 are clamped between the two opposite inner side walls. The two inner side walls, the first side plate 31 and the second side plate 32 jointly enclose the second installation space, thus realizing the installation and fixation of the heating assembly 2.

[0045] Of course, it should be noted that the fixing member 3 can also be other structures, and the present disclosure does not limit this. As long as a second installation space can be formed on the fixing member 3 so that the heating assembly 2 can be inserted into the second installation space to prevent shaking. Specifically, the heating assembly 2 and the inner wall of the second installation space are in a plug-in fit, which can prevent the heating assembly 2 from coming out of the second installation space, and thus can ensure stable installation.

[0046] In some embodiments, heat dissipation fins are provided on the outer wall of the heat conduction tube 22 to accelerate heat dissipation. Specifically, there are multiple heat dissipation fins, and the arrangement of the multiple heat dissipation fins can be specifically set according to actual needs.

[0047] In some embodiments, the heating assembly 2 further includes a thermostat 4. The thermostat 4 is arranged on the outer wall of the heat conduction tube 22 to monitor the temperature on the heat conduction tube 22. When the thermostat 4 reaches the preset temperature, the heater 21 is automatically turned off and then turned on again under certain conditions. Of course, the thermostat 4 can also be arranged on the first side plate 31 or the second side plate 32, and a receiving space for accommodating the thermostat 4 is correspondingly opened inside the air duct 11, so as to monitor the temperature of the heat conduction tube 22 after heat conduction through the first side plate 31 or the second side plate 32.

[0048] In specific implementation, the thermostat 4 can be fixed to the first side plate 31 or the second side plate 32 by fasteners such as screws to ensure stable connection and the accuracy of temperature detection. Of course, the thermostat 4 can also be arranged at other positions, which is not limited in this disclosure, as long as it can detect the air temperature in the air duct 11 and the temperature on the heat conduction tube 22 simultaneously.

[0049] Specifically, the heater 21 can be a heating device with a single power, such as a PTC heater, or a heating device that can achieve different heating powers by connecting two different wires, which is not limited in this disclosure.

[0050] Some other embodiments of this disclosure provide a washing machine, including a machine body 1, a drum 5, and a heating device as in any of the above embodiments. The drum 5 is arranged inside the machine body 1. An air duct 11 is arranged outside the machine body 1. The heating assembly 2 is arranged on the inner wall of the air duct 11. The air duct 11 has a through air inlet 12 and an air outlet 13. A blower 6 is arranged at the air inlet 12, and the air outlet 13 is communicated with the drum 5.

[0051] In specific implementation, referring to Figure 3 As shown, an air duct 11 is formed outside the machine body 1 of the washing machine. The heating assembly 2 is arranged in the air duct 11 to heat the air passing through the air duct 11 through the heating assembly 2, and then supply the heated air to the drum 5, thereby improving the drying efficiency. That is to say, the air blown out by the blower 6 is heated by the heating assembly 2 and then enters the drum 5 through the air duct 11, and then the hot air is used to dry the clothes. Specifically, the rear end of the drum 5 is connected to a motor 7 to drive the drum 5 to rotate. A door seal 8 is also arranged at the front end of the machine body 1, which can form a closed washing cavity and drying cavity.

[0052] The washing machine provided by the embodiments of this disclosure includes the heating device as in any of the above embodiments, so it has the beneficial effects of the heating device as in any of the above embodiments, which will not be elaborated here.

[0053] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0054] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating device, characterized in that: It is arranged in an air duct connected to the drum, including a heating component, the heating component including a heater and a heat pipe, the heater heats the air duct and the heat pipe, the heat pipe has a through water inlet and a water outlet, and the water outlet is connected to the drum.

2. The heating device according to claim 1, characterized in that The water inlet is connected to the water inlet valve through a first three-way valve, and the first three-way valve has a first inlet, a second inlet and a first outlet; The first inlet is communicated with the water inlet valve, and the first outlet is used to communicate with the water inlet to input heated washing water into the drum; The second inlet is used to communicate with the outlet of the drum, and a circulation pump is provided between the second inlet and the outlet of the drum to circulate and heat the washing water in the drum.

3. The heating device according to claim 1, characterized in that: The water outlet is connected to the drum via a second three-way valve, wherein the second three-way valve has a third inlet, a second outlet and a third outlet; The third inlet is used to communicate with the water outlet, and the second outlet is used to communicate with the inlet of the drum, so as to input the heated washing water into the drum; The third outlet is used to communicate with the drain port of the washing machine to discharge the heated washing water in the heat conduction pipe.

4. The heating device according to claim 1, characterized in that The heat pipe includes a first bending section and a second bending section connected to each other, the first bending section and the second bending section are arranged at an interval, and a first installation space is formed between the first bending section and the second bending section, the heater is arranged in the first installation space, and two opposite surfaces of the heater are respectively arranged to fit the first bending section and the second bending section.

5. The heating device according to claim 4, characterized in that: The first bending section and the second bending section each include a plurality of connected sub-bending sections, and the plurality of sub-bending sections are arranged side by side to cover the surface of the heater.

6. The heating device according to any one of claims 1 to 5, characterized in that: The heating device further comprises a fixing member, the heating component is arranged in the air duct through the fixing member, a second installation space is formed on the fixing member, and the heating component is inserted in the second installation space.

7. The heating device according to claim 6, characterized in that: The fixing member includes a first side plate and a second side plate, and the first side plate and the second side plate are used to be correspondingly clamped in a first clamping groove and a second clamping groove spaced apart on the inner wall of the air duct to form the second installation space between the first side plate and the second side plate.

8. The heating device according to any one of claims 1 to 5, characterized in that: The outer wall of the heat conducting pipe is provided with a heat sink.

9. The heating device according to any one of claims 1 to 5, characterized in that: The heating assembly further comprises a temperature controller, and the temperature controller is arranged on the outer wall of the heat conducting pipe.

10. A washing machine, characterized in that: It comprises a machine body, a drum and the heating device according to any one of claims 1 to 9, wherein the drum is arranged in the machine body, an air duct is arranged outside the machine body, and the heating component is arranged on the inner wall of the air duct; The air duct has an air inlet and an air outlet which are connected to each other. A fan is arranged at the air inlet, and the air outlet is connected to the drum.

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