Double-fan drying structure in a washing machine

Abstract

This utility model discloses a dual-fan drying structure for a washing machine, including an outer unit and an inner unit housed within the outer unit. The inner unit contains an inner drum, the interior of which forms a cavity for washing and drying clothes. A drying structure communicating with the cavity is located on the side wall of the inner unit. The drying structure includes a heating unit and a fan unit consisting of at least two fans. The heating unit is located within the fan unit, and the air generated by the fan unit is heated by the heating unit. The heated air then enters the inner cavity for drying. This utility model features a reasonable structural design. By replacing the original small fan with two small fans, the working power of the fans is significantly increased. Furthermore, the volume of the two small fans is smaller than that of the large fan, saving internal space in the washing machine. Additionally, a PTC heating element is placed between the fans and the air outlet, ensuring that the air blown into the inner cavity is hot air, thus improving the drying effect.

Description

Technical Field

[0001] This utility model relates to the field of washing machines, and in particular to a dual-fan drying structure for a washing machine. Background Technology

[0002] Nowadays, people's material needs are getting higher and higher, and the functions of various home appliances are becoming more diversified. Washing machines, for example, are no longer limited to washing functions. They also have functions such as timer, sterilization, and drying, which has led to the washer-dryer combos we are familiar with today.

[0003] Currently, washing machine dryers typically employ a built-in fan design. While larger drums allow users to wash more clothes at once, the power of the drying fan is insufficient to meet the increased demand. However, current high-power fans are too bulky for smaller washing machines, resulting in drying performance lagging behind the advancements in washing machine technology. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a dual-fan drying structure in a washing machine, based on the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a dual-fan drying structure in a washing machine, including an outer body and an inner body disposed in the outer body. The inner body is provided with an inner drum, and the inside of the inner drum is an inner cavity for washing and drying clothes. The side wall of the inner body is provided with a drying structure communicating with the inner cavity. The drying structure includes a heating unit and a fan unit composed of at least two fans. The heating unit is disposed in the fan unit. The air generated by the fan unit is heated by the heating unit, and the heated hot air enters the inner cavity for drying.

[0006] Preferably, the fan unit includes a housing, which includes an integrally formed lower cover plate and an upper cover plate covering the lower cover plate. A first fan and a second fan are provided inside the housing. The first fan includes a first impeller, and the second fan includes a second impeller. The end of the housing away from the first impeller and the second impeller is the air outlet.

[0007] Preferably, the heating unit includes a PTC heating element disposed within the housing, and a support frame for mounting the PTC heating element is provided on the inner wall of the lower cover plate. The PTC heating element is fixed on the support frame and is arranged between the air outlet and the first impeller and the second impeller.

[0008] Preferably, the drying structure further includes an air inlet cover located on the top of the inner body, an air inlet cavity for air intake is provided on the side of the air inlet cover, and an air outlet cavity for air exhaust is provided at the bottom of the air inlet cover near the air inlet cavity. The air inlet cavity and the air outlet cavity are connected, the air inlet cavity and the air outlet are connected, and the air outlet cavity and the inner cavity are connected.

[0009] Preferably, it also includes a control unit, which is electrically connected to both the heating unit and the fan unit.

[0010] Preferably, the outer unit body is provided with an outer bracket for supporting and installing the outer unit body. The outer bracket is arranged between the outer unit body and the inner unit body. The inner unit body is sleeved and fixed outside the inner cylinder. The top of the outer unit body is provided with a first opening, and the air inlet cover is provided with a second opening. Both the first opening and the second opening are in communication with the inner cavity.

[0011] Preferably, the outer edge of the top of the outer unit is hinged to an outer cover that opens and closes in conjunction with the first opening, and the top of the air inlet cover is hinged to an inner cover that opens and closes in conjunction with the second opening.

[0012] Compared with the prior art, the advantages of this utility model are as follows: by replacing the original small fan with two small fans, the working power of the fan is increased several times, and the volume of the two small fans is smaller than that of the large fan, while saving the internal space of the washing machine. Furthermore, by setting a PTC heating element between the fan and the air outlet, the air blown into the inner cavity is hot air, which improves the drying effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is an exploded structural diagram of the present invention;

[0016] Figure 4 This is an exploded structural diagram of the drying structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the air inlet cover of this utility model.

[0018] Reference numerals in the attached drawings: 1. Outer unit; 2. Inner unit; 3. Inner cylinder; 4. Inner cavity; 5. Lower cover plate; 6. Upper cover plate; 7. First impeller; 8. Second impeller; 9. Air outlet; 10. PTC heating element; 11. Support frame; 12. Air inlet cover; 13. Air inlet cavity; 14. Air outlet cavity; 15. Outer bracket; 16. First opening; 17. Second opening; 18. Outer cover; 19. Inner cover. Detailed Implementation

[0019] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0020] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] like Figures 1 to 5As shown, this utility model provides a dual-fan drying structure for a washing machine, including an outer body 1 and an inner body 2 disposed within the outer body 1. The inner body 2 is provided with an inner drum 3, and the interior of the inner drum 3 is an inner cavity 4 for washing and drying clothes. Specifically, the side wall of the inner body 2 is provided with a drying structure communicating with the inner cavity 4. The drying structure includes a heating unit and a fan unit composed of at least two fans. The heating unit is disposed within the fan unit, and the air generated by the fan unit is heated by the heating unit. The heated air enters the inner cavity 4 for drying.

[0025] The fan unit includes a housing, which includes an integrally formed lower cover plate 5 and an upper cover plate 6 covering the lower cover plate 5. A first fan and a second fan are provided inside the housing. Specifically, the first fan includes a first impeller 7, the second fan includes a second impeller 8, and the end of the housing away from the first impeller 7 and the second impeller 8 is the air outlet 9.

[0026] The heating unit includes a PTC heating element 10 disposed inside the housing. The inner wall of the lower cover plate 5 has an inwardly protruding support frame 11 for mounting the PTC heating element 10. Specifically, the PTC heating element 10 is fixed on the support frame 11 and is arranged between the air outlet 9 and the first impeller 7 and the second impeller 8.

[0027] The drying structure also includes an air inlet cover 12 located on the top of the inner body 2. An air inlet cavity 13 for air intake is opened on the side of the air inlet cover 12, and an air outlet cavity 14 for air outlet is opened at the bottom of the air inlet cover 12 near the air inlet cavity 13. Specifically, the air inlet cavity 13 and the air outlet cavity 14 are connected, the air inlet cavity 13 is connected to the air outlet 9, and the air outlet cavity 14 is connected to the inner cavity 4.

[0028] It also includes a control unit, which is electrically connected to the heating unit and the fan unit. Specifically, the control unit controls the fan unit and the heating unit to start or stop working. The electrical control connection and electrical induction connection between the control unit and the fan unit and the heating unit, as well as the control principle and circuit principle inside the control unit, are all technical means commonly used and easily conceived by those skilled in the art, so they will not be elaborated on further.

[0029] The outer unit 1 is provided with an outer bracket 15 for supporting and installing the outer unit 1. The outer bracket 15 is arranged between the outer unit 1 and the inner unit 2. The inner unit 2 is sleeved and fixed to the outside of the inner cylinder 3. Specifically, the top of the outer unit 1 is provided with a first opening 16, and the air inlet cover 12 is provided with a second opening 17. Both the first opening 16 and the second opening 17 are connected to the inner cavity 4.

[0030] The outer edge of the top of the outer unit 1 is hinged to an outer cover 18 that opens and closes in conjunction with the first opening 16, and the top of the air inlet cover 12 is hinged to an inner cover 19 that opens and closes in conjunction with the second opening 17.

[0031] Furthermore, the washing principle and internal control principle of a washing machine are common and easily understood technical methods used by those skilled in the art, so they will not be elaborated upon further.

[0032] The working principle of this utility model is as follows: the clothes to be washed are placed into the inner cavity 4, the washing machine starts working, and after the washing machine finishes washing, the fan unit and heating unit are started by the control unit to start the drying work. The outside air is drawn into the housing through the first impeller 7 and the second impeller 8. Under the action of the first fan and the second fan, the air in the housing is heated by the PTC heating element 10 to form hot air for drying. The hot air leaves the housing through the air outlet 9. Since the air inlet cavity 13 of the air inlet cover 12 is connected to the air outlet 9, the hot air enters the air inlet cover 12 through the air inlet cavity 13, and finally blows directly out into the inner cavity 4 through the air outlet cavity 14 in the air inlet cover 12 to dry the wet clothes in the inner cavity 4 after washing.

[0033] The advantages of this utility model are: by replacing the original small fan with two small fans, the working power of the fan is increased several times, and the volume of the two small fans is smaller than that of the large fan, while saving the internal space of the washing machine. Furthermore, by setting a PTC heating element 10 between the fan and the air outlet 9, the air blown into the inner cavity 4 is hot air, which improves the drying effect.

[0034] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0035] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A dual-fan drying structure for a washing machine, comprising an outer unit and an inner unit disposed within the outer unit, the inner unit containing an inner drum, the interior of which forms a cavity for washing and drying clothes, characterized in that: The inner body sidewall is provided with a drying structure that communicates with the inner cavity. The drying structure includes a heating unit and a fan unit consisting of at least two fans. The heating unit is located inside the fan unit. The air generated by the fan unit is heated by the heating unit, and the heated air enters the inner cavity for drying.

2. The dual-fan drying structure in a washing machine according to claim 1, characterized in that: The fan unit includes a housing, which includes an integrally formed lower cover plate and an upper cover plate covering the lower cover plate. A first fan and a second fan are provided inside the housing. The first fan includes a first impeller, and the second fan includes a second impeller. The end of the housing away from the first impeller and the second impeller is the air outlet.

3. The dual-fan drying structure in a washing machine according to claim 2, characterized in that: The heating unit includes a PTC heating element disposed inside the housing. The inner wall of the lower cover plate has an inwardly protruding support frame for mounting the PTC heating element. The PTC heating element is fixed on the support frame and is arranged between the air outlet and the first impeller and the second impeller.

4. The dual-fan drying structure in a washing machine according to claim 2, characterized in that: The drying structure also includes an air inlet cover located on the top of the inner body. An air inlet cavity for air intake is opened on the side of the air inlet cover, and an air outlet cavity for air exhaust is opened at the bottom of the air inlet cover near the air inlet cavity. The air inlet cavity and the air outlet cavity are connected, the air inlet cavity and the air outlet are connected, and the air outlet cavity and the inner cavity are connected.

5. The dual-fan drying structure in a washing machine according to claim 1, characterized in that: It also includes a control unit, which is electrically connected to the heating unit and the fan unit.

6. The dual-fan drying structure in a washing machine according to claim 4, characterized in that: The outer unit is provided with an outer bracket for supporting the installation of the outer unit. The outer bracket is arranged between the outer unit and the inner unit. The inner unit is sleeved and fixed outside the inner cylinder. The top of the outer unit has a first opening and the air inlet cover has a second opening. Both the first opening and the second opening are connected to the inner cavity.

7. The dual-fan drying structure in a washing machine according to claim 6, characterized in that: The outer edge of the top of the outer unit is hinged to an outer cover that opens and closes in conjunction with the first opening, and the top of the air inlet cover is hinged to an inner cover that opens and closes in conjunction with the second opening.

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