Supporting structure of electric appliance

Abstract

The invention discloses a supporting structure of an electric appliance, the electric appliance comprises a left side plate, a right side plate, a back plate, a front cross beam and a rear cross beam, two ends of the front cross beam and two ends of the rear cross beam are respectively fixed at the tops of the left side plate and the right side plate; and two ends of the supporting beam are respectively fixed at the tops of the cross beams. According to the top supporting structure, by arranging the cross beam and the supporting beam structure, the supporting and torsion resisting effects on the electric appliance are improved, meanwhile, the assembling difficulty of the electric appliance is reduced, the size and weight of the electric appliance are reduced, and the production and transportation cost of the electric appliance is reduced.

Description

Technical Field

[0001] The invention belongs to the field of electrical appliances, and in particular relates to a supporting structure of an electrical appliance. Background Art

[0002] At present, there are various structures of the outer shell of electrical appliances, some of which are integral structures, and some are multi-piece assembly structures. The integral structure of the electrical shell has the disadvantages of high processing difficulty, high cost, and high requirements for material performance. The multi-piece assembly structure of the electrical shell often has the problems of low strength and excessive vibration during use due to the connection method. Therefore, after considering the cost issue and choosing the multi-piece assembly structure of the electrical shell, we often have to face the problem of how to enhance the support strength of the electrical shell.

[0003] The Chinese patent application number 201810175052.0 discloses a support frame for a double-drum washing machine, including four vertical beams, upper reinforcements connected to the upper ends of adjacent vertical beams, and a base connected to the lower ends of each vertical beam to form a square frame structure; the upper reinforcements on the left and right sides of the washing machine are connected via an upper crossbeam. The present invention connects the middle parts of the upper reinforcements on the left and right sides of the washing machine via an upper crossbeam, making the top of the frame more stable and the installation of the washing machine more secure. By providing a first mounting hole on the upper crossbeam, a support point is provided for the installation of the upper drum and / or the lower drum, so that the upper drum and / or the lower drum can be installed on the upper crossbeam via a hanging spring, which greatly improves the shock absorption effect.

[0004] Although the support frame of the double-drum washing machine disclosed in this patent provides a higher supporting strength for the washing machine, it still has some shortcomings: compared with a double-drum washing machine, a single-drum washing machine has a relatively lower requirement for supporting strength. Therefore, if this support frame is used for a single-drum washing machine, the overly large and complex frame body will increase the difficulty of assembling the washing machine, increase the volume of the washing machine, increase the weight of the washing machine, and increase the production and transportation costs of the washing machine; but if this support frame is not used, the risk of collision between electrical components and other components during the operation of the machine may increase, and the supporting strength of the electrical housing cannot be guaranteed, and the electrical appliance is at risk of damage during transportation and use.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The main technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide an electrical appliance support structure that can reduce the difficulty of assembling a washing machine, reduce the volume of the washing machine, reduce the weight of the washing machine, and reduce the production and transportation costs of the washing machine.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A support structure for an electrical appliance, comprising left and right side panels, a front crossbeam and a rear crossbeam, the two ends of which are respectively fixed to the tops of the left and right side panels; and a support beam, the two ends of which are respectively fixed to the tops of the crossbeam.

[0009] Preferably, the two side edges of the front cross beam, the rear cross beam and the support beam are provided with flange structures extending in the same direction.

[0010] Preferably, it is characterized in that the flange structure of the support beam is connected to the same side edges at both ends of the support beam.

[0011] Preferably, both ends of the support beam each have two bent portions formed by the support beam being recessed downward, and both ends of the support beam each have a first reinforcing portion connecting the two bent portions.

[0012] Preferably, two side edges at both ends of the support beam extend outwardly and obliquely respectively to form a first fixing portion fixedly fitted with the cross beam.

[0013] Preferably, both ends of the support beam are provided with first positioning portions extending downward and inserted into the front cross beam and the rear cross beam.

[0014] Preferably, both ends of the front cross beam are provided with second positioning portions extending downward and inserted into the left and right side plates.

[0015] Preferably, both ends of the front cross beam, the rear cross beam and the support beam are provided with fixing holes for screws to pass through to achieve a fixing effect.

[0016] Preferably, it also includes a back plate, the top of which extends forward to be connected to the rear cross beam, and both sides of the back plate are provided with third positioning parts that extend obliquely between the front and the bottom and are inserted into the left and right side plates.

[0017] Preferably, the tops of the left and right side panels extend inward to form a first plane fixedly fitted with the front crossbeam and the rear crossbeam, and the first plane is provided with fixing holes fixed to the crossbeams; the rear portions of the left and right side panels extend inward to form a second plane fixedly fitted with the back panel, and the second plane is provided with fixing holes fixed to the back panel.

[0018] After adopting the above technical solution, the support structure of an electrical appliance provided by the present invention has the following beneficial effects compared with the prior art:

[0019] (1) The support structure of the electrical appliance provided by the present invention forms an integrated support structure with the crossbeam and the support beam structure. Since the side panels replace the support frame as part of the support structure, the electrical appliance avoids the need to add an additional support frame structure, thereby reducing the difficulty of assembling the electrical appliance, reducing the size and weight of the electrical appliance, and reducing the production and transportation costs of the electrical appliance. At the same time, the arrangement of the crossbeam and the support beam structure also enhances the support and torsion resistance of the electrical appliance.

[0020] (2) The support structure of the electrical appliance provided by the present invention has flange structures on both sides of the support beam and the cross beam, which can improve the torsional rigidity of the cross beam support beam; and the flange structure of the support beam is connected to the same side at both ends, smoothly transitioning to the side without being disconnected, which can improve the torsional rigidity and support strength of the support beam.

[0021] (3) In the support structure of the electrical appliance provided by the present invention, the middle section of the support beam is recessed downward, which can avoid the components installed above the support beam and provide an installation position for the components below the support beam.

[0022] (4) In the support structure of the electrical appliance provided by the present invention, the bending portion of the support beam is provided with a reinforcement portion, which can avoid the reduction of the support strength caused by the bending of the support beam.

[0023] (5) The support structure of the electrical appliance provided by the present invention has an enlarged area of ​​the fixing parts at both ends of the support beam, which can obtain a larger contact and fitting area with the back plate and the front cross beam, thereby achieving a better fixing effect of the support beam.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] In the attached picture:

[0027] Figure 1 is a schematic diagram of a supporting structure of the electrical appliance of the present invention;

[0028] Figure 2 is a schematic diagram of a supporting structure of the electrical appliance of the present invention;

[0029] Figure 3 is a schematic diagram of the back plate and the rear cross beam of the present invention;

[0030] Figure 4 is a schematic diagram of the right side panel of the present invention;

[0031] Figure 5 is a schematic diagram of the right side panel of the present invention;

[0032] Figure 6 is a schematic diagram of the front crossbeam of the present invention;

[0033] Figure 7 Schematic diagram of the support beam of the present invention.

[0034] Description of the main components in the figure:

[0035] like Figures 1 to 7 As shown, left and right side panels 1, back panel 2, cross beam 3, front cross beam 31, rear cross beam 32, support beam 4, first plane 5, second plane 6, flange structure 7, first reinforcement part 8, second reinforcement part 9, first fixing part 10, second fixing part 11, first positioning part 12, second positioning part 13, third positioning part 14, support part 15, avoidance structure 16, first positioning hole 17, second positioning hole 18, third positioning hole 19.

[0036] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0038] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The present invention provides a support structure for an electrical appliance, such as Figures 1 to 7 shown.

[0041] The above-mentioned electrical appliance may be a washing machine, a clothes dryer, a dishwasher, etc. In this embodiment, the structure and function of the above-mentioned electrical appliance, which is a washing machine, are described as an example.

[0042] A washing machine comprises left and right side panels 1 and a back panel 2. The structures of the left and right side panels 1 are completely the same. The left and right side panels 1 are fixedly connected to the back panel 2 respectively. The connected parts are provided with fixing holes. Screws are passed through the fixing holes to achieve the fixation between the left side panel and the back panel 2, and the right side panel and the back panel 2.

[0043] The washing machine also includes a crossbeam 3, the two ends of which are respectively fixed to the tops of the left and right side panels 1; the tops of the left and right side panels 1 extend inwardly to form a first plane 5 fixedly fitted with the crossbeam 3, and the two ends of the crossbeam 3 and the fixed fitting positions on the first plane 5 are both provided with fixing holes for screws to pass through, so as to achieve the matching and fixing between the crossbeam 3 and the left and right side panels 1; the rear parts of the left and right side panels 1 extend inwardly to form a second plane 6 fixedly fitted with the back panel 2, and the left and right ends of the back panel 2 and the fixed fitting positions on the second plane 6 are both provided with fixing holes for screws to pass through, so as to achieve the matching and fixing between the back panel 2 and the left and right side panels 1.

[0044] There are two cross beams 3, namely a front cross beam 31 located at the front side and a rear cross beam 32 located at the rear side.

[0045] The washing machine also includes at least one support beam 4, the two ends of which are fixed to the top of the cross beam 3 respectively, and the two ends of the support beam 4 are fixedly fitted with the front cross beam 31 and the rear cross beam 32 at the fixed joints, so as to realize the cooperation and fixation between the support beam 4 and the cross beam 3.

[0046] The number of support beams 4 may be one or more, and the number of support beams 4 may be set as required, which is not limited in this embodiment.

[0047] The left and right side panels 1 and the back panel 2 are also provided with a plurality of fixing holes for screws to pass through, so as to achieve mutual fixation between the various components of the support structure.

[0048] The support beam 4 may also be equipped with components such as water guide grooves and pads on the top, and electronic control related devices such as computer board boxes and driver board boxes on the bottom. Therefore, in order to avoid the components on the top and provide a fixed position for installing electronic control related devices on the bottom, the middle section of the support beam 4 is recessed downward, and the two ends of the support beam 4 form two bent portions due to the downward recess of the support beam 4, and there is a slope between the two bent portions.

[0049] Therefore, a plurality of components and electrical devices are fixedly mounted on the support beam 4. If the torsional rigidity and supporting strength of the support beam 4 are insufficient, the vibration amplitude of the related electrical devices during the operation of the machine will increase, thereby increasing the risk of collision between the electrical devices and other components.

[0050] In order to improve the torsional rigidity and supporting strength of the support beam 4, two side edges of the support beam 4 are provided with flange structures 7 extending in the same direction, and the flange structures 7 may extend in an upward or downward direction.

[0051] The flange structure 7 of the support beam 4 is connected to the same side at both ends. The flange structure 7 of the support beam 4 is a slope that smoothly tilts downward at the connection point and extends to the outside of both ends until the flange structure 7 of the support beam 4 completely disappears.

[0052] Since the support strength of the support beam 4 will be reduced after being bent, in order to ensure the support strength of the support beam 4 after being bent, a first reinforcing portion 8 is provided at the bent portion of the support beam 4. Preferably, the first reinforcing portion 8 passes through the slope between the two bent portions to connect the two bent portions, and continues to extend to both sides for a certain length after reaching the bent portion.

[0053] The first reinforcement portion 8 is a long strip-shaped groove recessed upward or downward. Preferably, the cross-section of the first reinforcement portion 8 is an arc shape.

[0054] In order to increase the contact area between the two ends of the support beam 4 and the plane of the back plate 2 and the front cross beam 31, the two sides of the two ends of the support beam 4 extend outwardly to form a first fixing portion 10 fixedly fitted with the cross beam 3. Specifically, the first fixing portion 10 is similar to a trapezoidal or a trumpet shape.

[0055] The fixing holes for screws to pass through, which are arranged at the fixed joints between the two ends of the support beam 4 and the cross beam 3 , are also located on the first fixing portion 10 .

[0056] Since the support beam 4 needs to provide installation positions for multiple parts and electrical components in the washing machine, a plurality of assembly holes for the parts and electrical components are provided on the support beam 4, so the installation direction of the support beam 4 needs to be distinguished during installation. In order to facilitate the installation of the support beam 4 when assembling the washing machine, a mark for distinguishing the installation direction of the support beam 4 is provided on the upper side of the support beam 4, and the mark can be an arrow or text, etc.

[0057] like Figure 7 As shown, the mark for distinguishing the installation direction of the support beam 4 provided in this embodiment is an arrow, and the direction of the arrow is the front end of the washing machine.

[0058] In order to facilitate the installation of the support beam 4 when assembling the washing machine, the two ends of the support beam 4 are provided with first positioning parts 12 extending downward and inserted into the cross beam 3. The cross beam 3 is provided with a first positioning hole 17 whose shape and size match the first positioning part 12, for the first positioning part 12 to be inserted and fixed.

[0059] In order to reduce the number of accessories of the washing machine support structure and increase the convenience of assembling the washing machine, it is more preferred in this embodiment that the rear beam 32 and the back plate 2 are connected as one body, and the top of the back plate 2 extends forward to the front side and is connected to the rear beam 32.

[0060] In order to facilitate the installation of the front cross beam 31 when assembling the washing machine, the two ends of the front cross beam 31 are provided with second positioning parts 13 extending downward and inserted into the left and right side panels 1. The left and right side panels 1 are provided with second positioning holes 18 whose shapes and sizes match the second positioning parts 13, for the second positioning parts 13 to be inserted and fixed.

[0061] In order to facilitate the installation of the back plate 2 when assembling the washing machine, the back plate 2 is provided with third positioning parts 14 extending obliquely forward and downward and inserted into the left and right side plates 1 on both sides. The left and right side plates 1 are provided with third positioning holes 19 whose shapes and sizes match the third positioning parts 14, for the third positioning parts 14 to be inserted and fixed.

[0062] In order to improve the torsional rigidity and support strength of the cross beam 3, the two sides of the cross beam 3 are provided with flange structures 7 extending in the same direction, and the flange structures 7 can extend in the upward or downward direction. In order to facilitate the fixing of the two ends of the support beam 4 on the cross beam 3, it is more preferred in this embodiment that the flange structures 7 of the cross beam 3 extend downward.

[0063] Since the cross beam 3 is fixed on the top of the left and right side panels 1, and the support beam 4 is fixed on the top of the cross beam 3, and the position where the support beam 4 and the cross beam 3 are fixedly attached is also provided with fixing screws, the top of the fixing screws arranged on the first fixing portion 10 of the support beam 4 is the highest point of the support structure. The top shell of the washing machine needs to be installed on the support structure. Therefore, in order to avoid the top shell directly contacting with the fixing screws after installation, causing local stress concentration and thus damaging the top shell, the left and right side panels 1 need to continue to bend vertically and extend upward after extending inwardly to form the first plane 5 fixedly attached to the cross beam 3, so as to form a support portion 15 that supports the top shell of the washing machine, and the top of the support portion 15 is higher than the top of the fixing screws of the support beam 4.

[0064] If both ends of the cross beam 3 are to be fixed on the first plane 5 at the top of the left and right side plates 1, they need to pass over the support portion 15. Therefore, an avoidance structure 16 for avoiding the cross beam 3 is provided at the places where the cross beam 3 passes over the two ends of the support portion 15, and the upward extending part of the avoidance structure 16 is shorter than the upward extending part of the middle support portion 15.

[0065] The flange structure 7 of the crossbeam 3 is arranged between the avoidance structures 16 of the left and right side panels 1. After crossing the avoidance structure 16, the crossbeam 3 bends and extends vertically downward. After extending to contact with the first plane 5, it continues to bend and extend vertically outward to form a second fixing portion 11 fixedly fitted with the first plane 5.

[0066] Since the support strength of the bent beam 3 is reduced, in order to ensure the support strength of the bent beam 3, a second reinforcing portion 9 is provided at the bent portion of the beam 3. Preferably, the second reinforcing portion 9 is a groove sunken at one side of the bent portion of the beam toward the right angle opening.

[0067] The specific steps of assembling a washing machine support structure provided in this embodiment may be:

[0068] S1: The left and right side panels 1 are fixedly placed vertically relative to each other;

[0069] S2: Align the second positioning parts 13 at both ends of the rear cross beam 32 and the back panel 2 integral part with the second positioning holes 18 at the rear ends of the left and right side panels 1 and insert the rear cross beam 32 and the back panel 2 integral part to be fixed on the left and right side panels 1, and align the corresponding fixing holes between the rear cross beam 32 and the back panel 2 integral part and the left and right side panels 1;

[0070] S3: Align the second positioning parts 13 at both ends of the front cross beam 31 with the second positioning holes 18 at the front ends of the left and right side panels 1 and insert the front cross beam 31 so that the front cross beam 31 is fixed on the left and right side panels 1, and the corresponding fixing holes between the front cross beam 31 and the left and right side panels 1 are aligned;

[0071] S4: Screw the screws into the aligned fixing holes;

[0072] S5: Determine the installation direction of the support beam 4 according to the direction of the arrow on the support beam 4, align the first positioning parts 12 at both ends of the support beam 4 with the first positioning holes 17 on the cross beam 3 and insert them, so that the support beam 4 is fixed on the front cross beam 31 and the rear cross beam 32, and the corresponding fixing holes between the support beam 4 and the front cross beam 31 and the rear cross beam 32 are aligned;

[0073] S6: Screw the screws into the aligned fixing holes.

[0074] In another washing machine support structure provided in this embodiment, the rear crossbeam 32 and the back plate 2 may not be connected as one piece. Since more parts and electrical components need to be installed at the rear of the washing machine, the rear crossbeam 32 is provided with more assembly holes than the front crossbeam 31. Therefore, when the rear crossbeam 32 and the back plate 2 are not connected as one piece, this feature can be used to distinguish the front crossbeam 31 from the rear crossbeam 32. The specific steps in this assembly process may be:

[0075] S1: The left and right side panels 1 are fixedly placed vertically relative to each other;

[0076] S2: Align the third positioning parts 14 at both ends of the back plate 2 with the third positioning holes 19 on the left and right side plates 1 and insert them, so that the back plate 2 and the rear cross beam 32 are fixed to the left and right side plates 1 as a whole, and the corresponding fixing holes between the back plate 2 and the left and right side plates 1 are aligned;

[0077] S3: Align the second positioning parts 13 at both ends of the front cross beam 31 with the second positioning holes 18 at the front ends of the left and right side panels 1 and insert the front cross beam 31 so that the front cross beam 31 is fixed on the left and right side panels 1, and the corresponding fixing holes between the front cross beam 31 and the left and right side panels 1 are aligned;

[0078] S4: Screw the screws into the aligned fixing holes;

[0079] S5: Align the fixing holes at both ends of the rear cross beam 32 with the corresponding fixing holes on the tops of the left and right side panels 1, and place the rear cross beam 32 on the left and right side panels 1;

[0080] S6: Screw the screws into the aligned fixing holes;

[0081] S7: Determine the installation direction of the support beam 4 according to the direction of the arrow on the support beam 4, align the first positioning parts 12 at both ends of the support beam 4 with the first positioning holes 17 on the front cross beam 31 and insert them, so that the support beam 4 is fixed on the front cross beam 31 and the rear cross beam 32, and the corresponding fixing holes between the support beam 4 and the front cross beam 31 and the rear cross beam 32 are aligned;

[0082] S8: Screw the screws into the aligned fixing holes.

[0083] After adopting the above technical solution, the support structure of an electrical appliance provided by the present invention has the following beneficial effects compared with the prior art:

[0084] (1) The support structure of the electrical appliance provided by the present invention forms an integrated support structure with the crossbeam and the support beam structure. Since the side panels replace the support frame as part of the support structure, the electrical appliance avoids the need to add an additional support frame structure, thereby reducing the difficulty of assembling the electrical appliance, reducing the size and weight of the electrical appliance, and reducing the production and transportation costs of the electrical appliance. At the same time, the arrangement of the crossbeam and the support beam structure also enhances the support and torsion resistance of the electrical appliance.

[0085] (2) The support structure of the electrical appliance provided by the present invention has flange structures on both sides of the support beam and the cross beam, which can improve the torsional rigidity of the cross beam support beam; and the flange structure of the support beam is connected to the same side at both ends, smoothly transitioning to the side without being disconnected, which can improve the torsional rigidity and support strength of the support beam.

[0086] (3) In the support structure of the electrical appliance provided by the present invention, the middle section of the support beam is recessed downward, which can avoid the components installed above the support beam and provide an installation position for the components below the support beam.

[0087] (4) In the support structure of the electrical appliance provided by the present invention, the bending portion of the support beam is provided with a reinforcement portion, which can avoid the reduction of the support strength caused by the bending of the support beam.

[0088] (5) The support structure of the electrical appliance provided by the present invention has an enlarged area of ​​the fixing parts at both ends of the support beam, which can obtain a larger contact and fitting area with the back plate and the front cross beam, thereby achieving a better fixing effect of the support beam.

[0089] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A support structure for an electrical appliance, the electrical appliance comprising left and right side panels, characterized in that: It also includes a front crossbeam and a rear crossbeam, the two ends of which are respectively fixed to the tops of the left and right side panels; It also includes a support beam, and both ends of the support beam are respectively fixed to the top of the cross beam.

2. The support structure of an electrical appliance according to claim 1, characterized in that: The two side edges of the front cross beam, the rear cross beam and the support beam are provided with flange structures extending in the same direction.

3. The support structure of an electrical appliance according to claim 2, characterized in that: The flange structure of the support beam is connected to the same side edges at both ends of the support beam.

4. The support structure of an electrical appliance according to claim 1, characterized in that: Both ends of the support beam are respectively provided with two bending portions formed by the support beam being recessed downward, and both ends of the support beam are also respectively provided with a first reinforcing portion connecting the two bending portions.

5. The support structure of an electrical appliance according to claim 1, characterized in that: The two side edges at both ends of the support beam extend outwardly and tilt respectively to form a first fixing portion fixedly fitted with the cross beam.

6. The support structure of an electrical appliance according to claim 1, characterized in that: Both ends of the support beam are provided with first positioning parts extending downward and inserted into the front cross beam and the rear cross beam.

7. The support structure of an electrical appliance according to claim 1, characterized in that: The two ends of the front cross beam are provided with second positioning parts extending downward and inserted into the left and right side plates.

8. The support structure of an electrical appliance according to claim 1, characterized in that: Both ends of the front cross beam, the rear cross beam and the support beam are provided with fixing holes for screws to pass through to achieve a fixing effect.

9. The support structure of an electrical appliance according to claim 7, characterized in that: It also includes a back plate, the top of which extends forward to be connected to the rear cross beam, and two sides of the back plate are provided with third positioning parts that extend obliquely forward and downward and are inserted into the left and right side plates.

10. The support structure of an electrical appliance according to any one of claims 1 to 9, characterized in that: The tops of the left and right side panels extend inward to form a first plane fixedly fitted with the front crossbeam and the rear crossbeam, and the first plane is provided with fixing holes fixed to the crossbeams; the rear parts of the left and right side panels extend inward to form a second plane fixedly fitted with the back panel, and the second plane is provided with fixing holes fixed to the back panel.

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