A heat pump twin-tub washing machine

Abstract

This invention provides a heat pump type twin-tub washing machine, including a frame, a dual-function assembly, and a water tank assembly. A first washing drum and a second washing drum are arranged side-by-side inside the frame. The frame includes a left crossbeam, a middle crossbeam, and a right crossbeam, which are sequentially arranged and connected along the left-right direction of the frame. The middle crossbeam is located between the first and second washing drums. The dual-function assembly is positioned on the middle and right crossbeams and between the first and second washing drums, ensuring that the dual-function assembly is force-balanced. This prevents deformation and displacement of the dual-function assembly during washing machine operation and ensures that the assembly can smoothly complete dehumidification and heating of the drying airflow. The water tank assembly includes a water tank body and a water tank cover, with the water tank cover covering the water tank body. The water tank body is positioned on the left crossbeam, and the water tank cover is positioned on the middle crossbeam, ensuring that the water tank assembly is force-balanced and preventing deformation and displacement of the water tank assembly during washing machine operation.

Description

Technical Field

[0001] This invention belongs to the field of washing machine technology, and particularly relates to a heat pump twin-tub washing machine. Background Technology

[0002] In recent years, the washing machine industry has shown a diversified development trend, and the healthy partitioned washing method has gradually become the core concept of washing machine product research and development. In order to meet the growing demand of consumers for healthy washing, various types of twin-tub washing machines have been developed on the market; in particular, heat pump twin-tub washing machines are popular among consumers because they have good care effect and low damage to clothes. Now, a twin-tub washing machine with both tubs washing and drying in one unit is proposed. The drying module includes an air inlet duct assembly. In the existing technology, the two components are large in size and heavy in weight. The two components are prone to deformation and displacement in the direction of no force, which makes it impossible for the two components to complete the dehumidification and heating of the drying airflow smoothly. Summary of the Invention

[0003] In view of this, the present invention provides a heat pump type twin-tub washing machine to solve the problems in the prior art where the two components are prone to deformation and misalignment in the direction of no force, resulting in the two components being unable to smoothly complete dehumidification and heating of the drying airflow.

[0004] This invention provides a heat pump type twin-tub washing machine, comprising:

[0005] A frame, in which a first washing drum and a second washing drum are arranged side by side; the frame includes a left crossbeam, a middle crossbeam and a right crossbeam arranged and connected sequentially along the left and right direction of the frame, the middle crossbeam being located between the first washing drum and the second washing drum;

[0006] A two-component assembly is disposed on the middle crossbeam and the right crossbeam and located between the first washing drum and the second washing drum. The two-component assembly is used to dehumidify and heat the drying airflow.

[0007] Optionally, the two-component assembly includes a two-component box, which comprises a box body and a cover, the cover covering the box body; the box body is disposed on the right crossbeam, and has points b1 and b2 connected to the right crossbeam, the distance between points b1 and b2 being b1b2; the vertical force at point b1 is F. b1 The magnitude of the vertical force at point b2 is F. b2 Satisfying: 45mm < b1b2 < 85mm, F b1 =k b11 *F G +k b12 *F g F b2 =k b21 *FG +k b22 *F g ;

[0008] Among them, F g F is the weight of the air inlet assembly of the heat pump twin-tub washing machine. G The weight of the two containers; 0.1 < k b11 <0.2, 0.1<k b12 <0.2, 0.1<k b21 <0.2, 0.1<k b22 <0.2.

[0009] Optionally, the two device covers are disposed on the central crossbeam, and the two device covers have points c11 and c12 connected to the central crossbeam, the distance between points c11 and c12 being c. 11 c 12 The magnitude of the horizontal force at point c11 is F. c11 The magnitude of the horizontal force at point c12 is F. c12 Satisfies: 160mm < c 11 c 12 <200mm, F c11 =k c11 *F Z F c12 =k c12 *F Z ;

[0010] Among them, F Z The magnitude of the resonance force of the heat pump twin-tub washing machine is 0.2 < k. c11 <0.4, 0.2<k c12 <0.4.

[0011] Further optionally, the right crossbeam forms a point B that connects to the two container bodies, and a B fixing structure is formed at point B; the B fixing structure is a fixing hole and has multiple holes;

[0012] The middle crossbeam has a C1 point that connects to the two device covers, and a C1 fixing structure is formed at the C1 point; the C1 fixing structure consists of fixing holes and has multiple holes.

[0013] Optionally, the heat pump twin-tub washing machine further includes a water tank assembly, which comprises a water tank body and a water tank cover, the water tank cover being disposed on the water tank body; the water tank body is disposed on the left crossbeam, and the water tank body forms points a1 and a2 connected to the left crossbeam, the distance between points a1 and a2 being a1a2; the magnitude of the vertical force at point a1 is F. a1The magnitude of the vertical force at point a2 is F. a2 Satisfying: 140mm < a1a2 < 180mm, F a1 =k a1 *F G F a2 =k a2 *F G ;

[0014] Among them, F G Let k be the weight of the water box assembly, and 0.1 < k. a1 <0.2, 0.1<k a2 <0.2.

[0015] Optionally, the water tank cover is disposed on the central crossbeam, and the water tank cover has points c21 and c22 connected to the central crossbeam, the distance between points c21 and c22 being c. 21 c 22 The magnitude of the horizontal force at point c21 is F. c21 The magnitude of the horizontal force at point c22 is F. c22 Satisfies: 36mm < c 21 c 22 <76mm, F c21 =k c21 *F Z F c22 =k c22 *F Z ;

[0016] Among them, F Z The magnitude of the resonance force of the heat pump twin-tub washing machine is 0.2 < k. c21 <0.3, 0.2<k c22 <0.3.

[0017] Further optionally, the left crossbeam has a point A connected to the water box body, and a fixing structure A is formed at point A; the fixing structure A is a fixing hole and there are multiple holes, or the fixing structure A is a slot and there is at least one slot.

[0018] The middle crossbeam also forms a C2 point that connects to the water box cover. The C2 point forms a C2 fixing structure, which is a fixing hole and has multiple holes.

[0019] Further optionally, the right crossbeam also forms a B positioning structure for positioning the two device boxes; the B positioning structure is a positioning hole and has multiple holes, or the B positioning structure is a slot and has at least one slot.

[0020] The crossbeam also forms a C1 positioning structure and a C2 positioning structure. The C1 positioning structure is used to position the two container covers, and the C2 positioning structure is used to position the water box cover. The C1 positioning structure is a positioning hole and has multiple holes, or the C1 positioning structure is a slot and has at least one slot. The C2 positioning structure is a positioning hole and has multiple holes, or the C2 positioning structure is a slot and has at least one slot.

[0021] The left crossbeam also forms an A positioning structure for positioning the water box body.

[0022] Further optionally, the left crossbeam and the middle crossbeam, as well as the right crossbeam and the middle crossbeam, are connected by a snap-fit ​​structure, so that the left crossbeam, the right crossbeam, and the middle crossbeam form a whole; or,

[0023] Positioning structures are formed between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam, to ensure proper fit between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam.

[0024] Fixed structures are formed between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam, so that the left crossbeam and the middle crossbeam, and the right crossbeam and the middle crossbeam, form a whole.

[0025] Further optionally, the frame is a cuboid structure, with a base at the bottom, a first side plate on the left side, a second side plate on the right side, and a back plate at the rear.

[0026] Compared with the prior art, the main advantages of the present invention are:

[0027] The two-phase assembly includes two phases and a phase box. The two phases are set inside the phase box, which is located on the middle crossbeam and the right crossbeam and between the first washing drum and the second washing drum. This balances the forces on the two-phase assembly, makes full use of the space between the first washing drum and the second washing drum, prevents deformation and displacement of the two-phase assembly during the operation of the washing machine, and ensures that the two-phase assembly can smoothly complete the dehumidification and heating of the drying airflow. Attached Figure Description

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0030] Figure 1 , Figure 2 and Figure 3 A schematic diagram of the assembly structure of the two-component assembly, water box assembly, and frame embodiment provided by the present invention;

[0031] Figure 4 and Figure 5 A schematic diagram of the right crossbeam embodiment provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the crossbeam embodiment provided by the present invention;

[0033] Figure 7 A schematic diagram of the assembly structure of the right crossbeam, middle crossbeam, and two-component assembly provided by the present invention;

[0034] Figure 8 An exploded structural diagram of an embodiment of the right crossbeam, middle crossbeam, and two-component assembly provided by the present invention;

[0035] Figure 9a and Figure 9b This is a schematic diagram of the structure of an embodiment of the two-component box provided by the present invention;

[0036] Figure 10a and Figure 10b This is a schematic diagram of the structure of the water box embodiment provided by the present invention;

[0037] In the picture:

[0038] 1-Frame; 11-Left crossbeam; 12-Right crossbeam; 121-B Fixed structure; 122-B Positioning structure; 13-Middle crossbeam; 131-C1 Fixed structure; 132-C2 Fixed structure; 133-C1 Positioning structure; 134-C2 Positioning structure; 14-Frame main body;

[0039] 2-Two-piece assembly; 21-Two-piece housing; 22-Two-piece cover;

[0040] 31-Water box assembly; 32-Base. Detailed Implementation

[0041] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0042] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0045] In existing twin-tub washing machines, the two-piece assembly is large in size and heavy in weight. The two-piece assembly is prone to deformation and displacement in the direction of no force, which makes it impossible for the two-piece assembly to complete the dehumidification and heating of the drying airflow smoothly.

[0046] This invention creatively provides a heat pump type twin-tub washing machine, including a frame and a two-unit assembly. A first washing drum and a second washing drum are arranged side-by-side inside the frame. The frame includes a left crossbeam, a middle crossbeam, and a right crossbeam arranged sequentially and connected along the left-right direction of the frame. The middle crossbeam is located between the first and second washing drums. The two-unit assembly is disposed on the middle and right crossbeams and located between the first and second washing drums. This arrangement balances the forces on the two-unit assembly, fully utilizes the space between the first and second washing drums, prevents deformation and displacement of the two-unit assembly during washing machine operation, and ensures that the two-unit assembly can smoothly complete dehumidification and heating of the drying airflow.

[0047] Example 1

[0048] like Figure 1 and Figure 2 As shown, this embodiment provides a heat pump type twin-tub washing machine, including:

[0049] The frame 1 has a first washing drum and a second washing drum arranged side by side inside it. The frame 1 includes a left crossbeam 11, a middle crossbeam 13 and a right crossbeam 12 arranged and connected in sequence along the left and right directions of the frame 1. Specifically, the frame 1 includes a frame body 14, the left crossbeam 11 is located on the left side of the frame body 14, the right crossbeam 12 is located on the right side of the frame body 14, and the middle crossbeam 13 is connected between the left crossbeam 11 and the right crossbeam 12 and is located between the first washing drum and the second washing drum.

[0050] The drying module can deliver drying airflow to the first washing drum and the second washing drum. The drying module includes a two-component assembly 2, which is disposed on the middle crossbeam 13 and the right crossbeam 12 and located between the first washing drum and the second washing drum. The two-component assembly 2 is used to dehumidify and heat the drying airflow.

[0051] like Figure 9a and Figure 9b As shown, to address the issue of the two-device assembly 2 not being securely fixed, this embodiment proposes that the two-device assembly 2 includes a two-device box, which comprises a two-device box body 21 and a two-device cover 22, with the cover 22 covering the two-device box body 21. The two-device box body 21 is mounted on the right crossbeam 12, and has points b1 and b2 connected to the right crossbeam 12, with a distance of b1b2 between points b1 and b2. The vertical force at point b1 is F. b1 The magnitude of the vertical force at point b2 is F. b2 Satisfying: 45mm < b1b2 < 85mm, F b1 =k b11 *F G +k b12 *F g F b2 =k b21 *F G +k b22 *F g ;

[0052] Among them, F g For the weight of the air intake assembly of a heat pump twin-tub washing machine, F G Let k be the weight of the two containers; 0.1 < k b11 <0.2, 0.1<k b12 <0.2, 0.1<k b21 <0.2, 0.1<k b22 <0.2;

[0053] Preferably, b1b2=65mm, k b11 =k b12 =k b21 =k b22 =1 / 6.

[0054] Furthermore, the two caps 22 are mounted on the central crossbeam 13, and the two caps 22 have points c11 and c12 that connect to the central crossbeam 13, with a distance c between points c11 and c12. 11 c 12 The magnitude of the horizontal force at point c11 is F. c11 The magnitude of the horizontal force at point c12 is F. c12 Satisfies: 160mm < c 11 c 12 <200mm, F c11 =k c11 *F Z F c12 =k c12 *F Z ;

[0055] Among them, F Z For the magnitude of the resonance force in a heat pump twin-tub washing machine, 0.2 < k c11 <0.4, 0.2<k c12 <0.4;

[0056] Preferred, c 11 c 12 =180mm.

[0057] like Figure 5 and Figure 6 As shown, the right crossbeam 12 has a point B that connects to the two container bodies 21. A B fixing structure 121 is formed at point B to fix the two container bodies 21. The B fixing structure 121 is a fixing hole and has multiple holes.

[0058] The middle crossbeam 13 has a C1 point that connects to the two device covers 22. A C1 fixing structure 131 is formed at the C1 point to fix the two device covers 22. The C1 fixing structure 131 consists of fixing holes and has multiple holes.

[0059] like Figure 7 and Figure 8 As shown, in order to address the problem of inaccurate positioning when installing the two-component assembly 2, this embodiment proposes that the right crossbeam 12 also forms a B positioning structure 122 for positioning the two-component housing 21; the middle crossbeam 13 also forms a C1 positioning structure 133 for positioning the two-component cover 22.

[0060] Thus, the two container bodies 21 are accurately positioned on the right crossbeam 12 by the B positioning structure 122, and the two container bodies 21 are firmly fixed on the right crossbeam 12 by the B fixing structure 121; the two container covers 22 are accurately positioned on the middle crossbeam 13 by the C1 positioning structure 133; and the two container covers 22 are firmly fixed on the middle crossbeam 13 by the C1 fixing structure 131.

[0061] Furthermore, B fixing structure 121 has multiple fixing holes, B positioning structure 122 has multiple positioning holes; C1 fixing structure 131 has multiple fixing holes; C1 positioning structure 133 has multiple positioning holes.

[0062] like Figure 10a and Figure 10b As shown, to address the issue of the water tank assembly 31 not being securely fixed, this embodiment proposes that the twin-tub washing machine also includes a water tank assembly 31. The water tank assembly 31 includes a water tank body and a water tank cover, with the water tank cover covering the water tank body. The water tank body is mounted on the left crossbeam 11, and the water tank body has points a1 and a2 connected to the left crossbeam 11, with a distance of a1a2 between points a1 and a2. The vertical force at point a1 is F. a1 The magnitude of the vertical force at point a2 is F. a2 Satisfying: 140mm < a1a2 < 180mm, F a1 =k a1 *F G F a2 =k a2 *F G ;

[0063] Among them, F G For the weight of water box assembly 31, 0.1 < k a1 <0.2, 0.1<k a2 <0.2;

[0064] Preferably, a1a2 = 160 mm, k a1 =1 / 7, k a2 =1 / 7.

[0065] Furthermore, the water tank cover is mounted on the central crossbeam 13, and the water tank cover has points c21 and c22 connected to the central crossbeam 13, with a distance c between points c21 and c22. 21 c 22 The magnitude of the horizontal force at point c21 is F. c21 The magnitude of the horizontal force at point c22 is F. c22 Satisfies: 36mm < c 21 c 22 <76mm, F c21 =k c21*F Z F c22 =k c22 *F Z ;

[0066] Among them, F Z For the magnitude of the resonance force in a heat pump twin-tub washing machine, 0.2 < k c21 <0.3, 0.2<k c22 <0.3;

[0067] Preferably, c 21 c 22 =56mm, k c21 =0.25, k c22 =0.25.

[0068] like Figure 2 and Figure 3 As shown, the left crossbeam 11 has a point A that connects to the water box body, and a fixing structure A is formed at point A to fix the water box body; the middle crossbeam 13 also has a point C2 that connects to the water box cover, and a fixing structure C2 132 is formed at point C2 to fix the water box cover.

[0069] like Figure 4 and Figure 6 As shown, in order to address the problem of inaccurate positioning when installing the water box assembly 31, this embodiment proposes that the left crossbeam 11 also forms an A positioning structure for positioning the water box body; the middle crossbeam 13 also forms a C2 positioning structure 134 for positioning the water box cover.

[0070] Thus, the A positioning structure accurately positions the water box body on the left crossbeam 11, and the A fixing structure firmly fixes the water box body on the left crossbeam 11; the C2 positioning structure 134 accurately positions the water box cover on the middle crossbeam 13; and the C2 fixing structure 132 firmly fixes the water box cover on the middle crossbeam 13.

[0071] Furthermore, the A fixing structure has multiple fixing holes; the C2 fixing structure 132 has multiple fixing holes; and the C2 positioning structure 134 has multiple positioning holes.

[0072] To address the problem of unreliable connections between the left crossbeam 11, right crossbeam 12, and middle crossbeam 13, this embodiment proposes that the left crossbeam 11 and the middle crossbeam 13, as well as the right crossbeam 12 and the middle crossbeam 13, are connected by a snap-fit ​​structure, so that the left crossbeam 11, right crossbeam 12, middle crossbeam 13, and the frame body 14 form a whole; specifically, the snap-fit ​​structure includes a snap tongue and a snap groove;

[0073] Alternatively, positioning structures are formed between the left crossbeam 11 and the middle crossbeam 13, and between the right crossbeam 12 and the middle crossbeam 13, so that the left crossbeam 11 and the middle crossbeam 13, and the right crossbeam 12 and the middle crossbeam 13, can fit together.

[0074] A fixed structure is formed between the left crossbeam 11 and the middle crossbeam 13, and between the right crossbeam 12 and the middle crossbeam 13, so that the left crossbeam 11 and the middle crossbeam 13, and the right crossbeam 12 and the middle crossbeam 13, are connected, and the left crossbeam 11, the right crossbeam 12, the middle crossbeam 13 and the frame body 14 form a whole.

[0075] This increases the strength of frame 1 and improves its stability.

[0076] In addition, a base 32 is provided at the bottom of the frame body 14, a front panel is provided on the front side of the frame body 14, a first side panel is provided on the left side of the frame body 14, a second side panel is provided on the right side of the frame body 14, and a back panel is provided on the rear side of the frame body 14.

[0077] Example 2

[0078] Unlike Embodiment 1, the B positioning structure 122 is a slot and has at least one.

[0079] Example 3

[0080] Unlike Embodiment 1, the C1 positioning structure 133 is a slot and has at least one slot.

[0081] Example 4

[0082] Unlike Embodiment 1, the fixing structure A is a slot and has at least one.

[0083] Example 5

[0084] Unlike Embodiment 1, the C2 positioning structure 134 is a slot and has at least one slot.

[0085] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A heat pump type twin-tub washing machine, characterized in that, The heat pump type twin-tub washing machine includes: A frame, in which a first washing drum and a second washing drum are arranged side by side; the frame includes a left crossbeam, a middle crossbeam and a right crossbeam arranged and connected sequentially along the left and right direction of the frame, the middle crossbeam being located between the first washing drum and the second washing drum; A two-device assembly is disposed on the middle crossbeam and the right crossbeam and located between the first washing drum and the second washing drum. The two-device assembly is used to dehumidify and heat the drying airflow. The two-device assembly includes a two-device box. The two-device box includes a two-device box body and a two-device cover body, and the two-device cover body covers the two-device box body. The two device housings are mounted on the right crossbeam, and each housing forms points b1 and b2 that connect to the right crossbeam. The distance between points b1 and b2 is b1b2. The magnitude of the vertical force at point b1 is F. b1 The magnitude of the vertical force at point b2 is F. b2 The F b1 and F b2 Satisfy: 45mm < b1b2 < 85mm, F b1 =k b11 *F G +k b12 *F g F b2 =k b21 *F G +k b22 *F g Among them, F g F is the weight of the air inlet assembly of the heat pump twin-tub washing machine. G The weight of the two containers; 0.1 < k b11 <0.2, 0.1<k b12 <0.2, 0.1<k b21 <0.2, 0.1<k b22 <0.2; The two device covers are mounted on the central crossbeam, and each device cover has points c11 and c12 that connect to the central crossbeam. The distance between c11 and c12 is c. 11 c 12 The magnitude of the horizontal force at point c11 is F. c11 The magnitude of the horizontal force at point c12 is F. c12 The c 11 c 12 F c11 and F c12 Satisfy: 160mm < c 11 c 12 <200mm, F c11 =k c11 *F Z F c12 =k c12 *F Z Among them, F Z The magnitude of the resonance force of the heat pump twin-tub washing machine is 0.2 < k. c11 <0.4, 0.2<k c12 <0.

4.

2. The heat pump type twin-tub washing machine according to claim 1, characterized in that, The right crossbeam has a point B that connects to the two container bodies, and a fixing structure B is formed at point B; the fixing structure B consists of fixing holes and has multiple holes. The middle crossbeam has a C1 point that connects to the two device covers, and a C1 fixing structure is formed at the C1 point; the C1 fixing structure consists of fixing holes and has multiple holes.

3. The heat pump type twin-tub washing machine according to claim 1, characterized in that, The heat pump twin-tub washing machine also includes a water tank assembly, which comprises a water tank body and a water tank cover, the cover being fitted onto the water tank body. The water tank body is mounted on the left crossbeam, and has points a1 and a2 connected to the left crossbeam, with a distance a1a2 between them. The vertical force at point a1 is F. a1 The magnitude of the vertical force at point a2 is F. a2 Satisfying: 140mm < a1a2 < 180mm, F a1 =k a1 *F G F a2 =k a2 *F G ; Among them, F G Let k be the weight of the water box assembly, and 0.1 < k. a1 <0.2, 0.1<k a2 <0.

2.

4. The heat pump type twin-tub washing machine according to claim 3, characterized in that, The water tank cover is mounted on the central crossbeam, and the water tank cover has points c21 and c22 that connect with the central crossbeam. The distance between c21 and c22 is c. 21 c 22 The magnitude of the horizontal force at point c21 is F. c21 The magnitude of the horizontal force at point c22 is F. c22 Satisfies: 36mm < c 21 c 22 <76mm, F c21 =k c21 *F Z F c22 =k c22 *F Z ; Among them, F Z The magnitude of the resonance force of the heat pump twin-tub washing machine is 0.2 < k. c21 <0.3, 0.2<k c22 <0.

3.

5. The heat pump type twin-tub washing machine according to claim 4, characterized in that, The left crossbeam has a point A that connects to the water box body, and a fixing structure A is formed at point A; the fixing structure A is a fixing hole and there are multiple holes, or the fixing structure A is a slot and there is at least one slot. The middle crossbeam also forms a C2 point that connects to the water box cover. The C2 point forms a C2 fixing structure, which is a fixing hole and has multiple holes.

6. The heat pump type twin-tub washing machine according to claim 3, characterized in that, The right crossbeam also forms a B positioning structure for positioning the two device boxes; the B positioning structure is a positioning hole and there are multiple holes, or the B positioning structure is a slot and there is at least one slot. The middle crossbeam also forms a C1 positioning structure and a C2 positioning structure. The C1 positioning structure is used to position the two device covers, and the C2 positioning structure is used to position the water box cover. The C1 positioning structure is a positioning hole and has multiple holes, or the C1 positioning structure is a slot and has at least one slot. The C2 positioning structure is a positioning hole and has multiple holes, or the C2 positioning structure is a slot and has at least one slot. The left crossbeam also forms an A positioning structure for positioning the water box body.

7. The heat pump type twin-tub washing machine according to claim 1, characterized in that, The left crossbeam and the middle crossbeam, as well as the right crossbeam and the middle crossbeam, are connected by a snap-fit ​​structure, making the left crossbeam, the right crossbeam, and the middle crossbeam a single unit; or, Positioning structures are formed between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam, to ensure proper fit between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam. Fixed structures are formed between the left crossbeam and the middle crossbeam, and between the right crossbeam and the middle crossbeam, so that the left crossbeam and the middle crossbeam, and the right crossbeam and the middle crossbeam, form a whole.

8. The heat pump twin-tub washing machine according to claim 1, characterized in that, The frame is a rectangular parallelepiped structure. A base is provided at the bottom of the frame. A first side plate is provided on the left side of the frame. A second side plate is provided on the right side of the frame. A back plate is provided at the rear of the frame.

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