A dishwasher

Abstract

The application discloses a kind of dishwashers, including shell, with conductivity, with ground wire connection;Base, be set in the shell;Power panel, install in the inside of the base, for power supply to dishwasher;Ground structure, for the conduction of the power panel and the shell, realize the grounding of power panel;The ground structure includes elastic grounding sheet, one end of the elastic grounding sheet is electrically connected with power panel, and the other end is abutted with shell.The application is through the abutment of elastic grounding sheet and shell of ground structure, both can realize the fastening connection of ground structure and shell, and can improve the effect of elastic grounding sheet and shell electric connection, again through the ground wire connected with shell, power panel is grounded, and then the grounding effect of power panel is guaranteed, improve the safety performance of dishwasher.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of household appliances, in particular to a dishwasher. BACKGROUND

[0002] The dishwasher can realize the automatic cleaning of tableware such as bowls, chopsticks, dishes, knives and forks. During use, it needs to be grounded to ensure the safety of users. At present, the grounding method of the commonly used dishwasher box body is to fasten the thread of the screw and the grounding wire to achieve the purpose of fastening the grounding wire and the box body together to achieve grounding. Long-term wear and tear will cause the thread of the fastening screw to be damaged and broken, so that the grounding wire and the box body cannot maintain contact and lose the grounding effect, which poses the risk of machine electric shock and injury.

[0003] In addition, the dishwasher is a kitchen appliance used in a 220V / 50HZ power supply environment. Due to the humid internal environment of the kitchen, there is a risk of the periphery of the box body being wetted by external kitchen water. Therefore, the dishwasher needs a very reliable grounding device when powered on to ensure grounding and prevent water vapor from entering the circuit to cause electric shock and protect the safety of users' lives and property.

[0004] A Chinese patent with application number CN201920743852.8 discloses a grounding structure of a dishwasher and the dishwasher. The grounding structure is used to connect the shell and the side plate of the dishwasher. The shell and the side plate are both fixed on the base of the dishwasher. The grounding structure comprises: a conductive bracket provided on the base, a first connecting plate provided on the conductive bracket, a second connecting plate provided on the conductive bracket, and a grounding wire. The first connecting plate is located between the shell and the base. The second connecting plate is provided between the base and the side plate. The shell and the first connecting plate are connected by a first fastener. The side plate and the second connecting plate are connected by a second fastener. The conductive bracket is integrally formed with the first connecting plate and the second connecting plate. The grounding wire is connected with one of the side plate, the conductive bracket and the shell.

[0005] The grounding structure of the dishwasher in the above-mentioned scheme connects the shell and the side plate of the dishwasher by the grounding wire, and then grounds. However, the grounding structure is not directly connected with the power panel. If the power panel cannot be well connected with the side plate and the shell, the grounding effect of the power panel cannot be guaranteed, and an electric accident may occur. Moreover, the above-mentioned grounding structure is relatively complex, and needs to be connected in multiple steps and multiple times, which increases the installation difficulty. Furthermore, the above-mentioned grounding structure does not have a sealing part, and cannot achieve waterproofing of the power panel.

[0006] In view of the above technical defects, the present application is proposed. SUMMARY

[0007] The technical problem solved by the present application is to overcome the deficiencies of the prior art and provide a dishwasher with a grounding structure that can ensure the grounding effect of a power board, the grounding structure being simple in structure, easy to install and having a waterproof function.

[0008] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0009] A dishwasher comprises

[0010] A housing having electrical conductivity and being connected to a grounding wire;

[0011] A base provided in the housing;

[0012] A power board installed inside the base for supplying power to the dishwasher;

[0013] A grounding structure for conducting the power board and the housing to achieve the grounding of the power board;

[0014] The grounding structure comprises an elastic grounding sheet, one end of which is in conductive connection with the power board and the other end of which is in abutment with the housing.

[0015] By adopting the above scheme, the grounding structure and the housing can be tightly connected to ensure the electrical connection effect of the power board and the housing, and the grounding of the power board is achieved through the grounding wire of the housing, thereby ensuring the grounding effect of the power board and improving the safety performance of the dishwasher.

[0016] In addition, the elastic grounding sheet has a large area and a large contact area with the housing, which can improve the electrical connection effect of the elastic grounding sheet and the housing.

[0017] Further, the grounding structure further comprises a connecting piece having electrical conductivity for connecting the power board and the elastic grounding sheet.

[0018] By adopting the above scheme, the stability of the connection between the elastic grounding sheet and the power board can be improved, and the electrical connection effect of the elastic grounding sheet and the power board can be ensured.

[0019] Further, the grounding structure further comprises a sealing part provided on the connecting piece for preventing water from entering the power board through the connecting piece.

[0020] By adopting the above scheme, water vapor outside the dishwasher can be prevented from entering the power board, and the risk of electric shock of the power board can be reduced, thereby further improving the safety performance of the dishwasher and ensuring the safety of users.

[0021] Further, the sealing part is located between the power board and the elastic grounding sheet.

[0022] Preferably, the sealing part is arranged close to the elastic grounding sheet.

[0023] Preferably, the sealing part is arranged close to the elastic grounding sheet.

[0024] By adopting the above scheme, water vapor can be prevented from entering the inside of the base through the gap between the elastic grounding sheet and the connecting piece, contacting the power panel, and further causing the power panel to leak electricity, thereby further ensuring the sealing effect of the sealing part, improving the safety performance of the dishwasher, and ensuring the safety of the user.

[0025] Further, the elastic grounding sheet is located on the side of the power panel facing the shell;

[0026] Preferably, the elastic grounding sheet is arranged outside the base.

[0027] Preferably, one end of the connecting piece connected to the elastic grounding sheet is located outside the base.

[0028] By adopting the above scheme, the installation and connection of the connecting piece and the elastic grounding sheet are facilitated, the abutment of the elastic grounding sheet and the shell is facilitated, the installation method is simplified, in addition, the volume of the elastic grounding sheet is reduced, and the production cost is reduced.

[0029] Further, the connecting piece is in a columnar structure.

[0030] The elastic grounding sheet, the sealing part, and the power panel are all provided with a plug hole matched with the columnar structure.

[0031] The connecting piece is inserted into the plug hole and is plugged with the elastic grounding sheet, the sealing part, and the power panel.

[0032] By adopting the above scheme, the connecting piece is plugged with the elastic grounding sheet, the sealing part, and the power panel, the connection method is relatively simple, simple and convenient, in addition, the plugging method can ensure the connection effect of the connecting piece, the elastic grounding sheet, the sealing part, and the power panel, which can realize the electrical connection of the conductive parts of the grounding structure and the sealing effect of the sealing part.

[0033] Further, the base is provided with a containing hole matched with the connecting piece, the containing hole is coaxially arranged with the plug hole on the power panel, and is used for containing the part of the connecting piece placed in the base.

[0034] Preferably, the power panel is arranged in the middle of the containing hole.

[0035] By adopting the above scheme, the accommodating hole matches with the connecting piece, the connecting piece can be prevented from shaking in the base, the stability of the connecting piece is ensured, in addition, the power board is arranged at the middle part of the accommodating hole, so that the connecting piece can penetrate the power board, the connecting effect of the connecting piece and the power board is ensured, and the electric connection effect of the connecting piece, the elastic grounding sheet and the power board is further ensured.

[0036] Further, the axial length of the accommodating hole is greater than the axial length of the connecting piece in the accommodating hole.

[0037] By adopting the above scheme, the connecting piece is facilitated to be inserted into the accommodating hole, in addition, when the connecting piece needs to be replaced, the accommodating hole can adapt to connecting pieces with various axial lengths, and the applicability is strong.

[0038] Further, the connecting piece is movably arranged on the base, and the base is provided with a fixing piece matched with the connecting piece, for fixing the connecting piece.

[0039] Preferably, the fixing piece is arranged close to the power board and located at the side of the power board facing the shell.

[0040] By adopting the above scheme, the connecting piece is facilitated to be fastened, the relative positions of the connecting piece, the elastic grounding sheet, the power board and the sealing part are stabilized, the connecting effect is ensured, the grounding effect of the power board is ensured, and the safety performance of the dishwasher is improved.

[0041] Further, the connecting piece is a bolt, and the fixing piece is a nut.

[0042] After adopting the above technical scheme, the present application has the following beneficial effects compared with the prior art.

[0043] 1. The elastic grounding sheet for connecting the power board and the shell abuts against the shell, can realize fastening connection of the grounding structure and the shell, in addition, the elastic grounding sheet is connected with the shell surface, the contact area of the electric connection is large, the electric connection effect of the elastic grounding sheet and the shell is improved, and the grounding effect of the power board is ensured, and the safety performance of the dishwasher is improved.

[0044] 2. The grounding structure has a sealing part, can prevent water vapor from contacting the power board, and further prevent the power board from leaking, reduces the electric accident, further improves the safety performance of the dishwasher, and ensures the life safety of the user.

[0045] 3. The connector has a columnar structure, an elastic grounding plate, and sockets that match the columnar structure are provided on the sealing part and the power board. The structure is simple, the connection method is simple, the connection effect can be guaranteed, the applicability is strong, and the cost is reduced.

[0046] 4. The fixing part secures the connector, ensuring the stability of the relative position of the connector, the elastic grounding plate, the power board, and the sealing part, thereby ensuring the connection effect and the grounding effect of the power board.

[0047] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0048] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0049] Figure 1 This is a schematic diagram of the installation structure of the grounding structure of the present invention;

[0050] Figure 2 This is an exploded view of the installation structure of the grounding structure of the present invention.

[0051] In the figure: 1. Grounding structure; 11. Elastic grounding piece; 111. First connection hole; 12. Sealing part; 13. Connector; 2. Base; 21. Receiving hole; 22. Mounting hole; 23. Groove; 3. Outer shell; 4. Power board; 41. Second connection hole; 5. Fixing piece.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of the present application, it should be noted that the terms "upper", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0055] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] As shown in Figure 1 and Figure 2 The present application discloses a dishwasher, which comprises a shell 3 having electrical conductivity and being connected to a grounding wire; a base 2 arranged in the shell 3; a power panel 4 installed inside the base 2 for supplying power to the dishwasher; and a grounding structure 1 for conducting the power panel 4 and the shell 3 to achieve grounding of the power panel 4. The grounding structure 1 comprises an elastic grounding sheet 11, one end of which is electrically connected to the power panel 4, and the other end of which abuts against the shell 3.

[0057] The power panel 4 is installed on the side of the base 2 away from the shell 3.

[0058] By adopting the above scheme, the grounding structure 1 and the shell 3 can be tightly connected, ensuring the electrical connection effect of the power panel 4 and the shell 3. Then, through the grounding wire of the shell 3, the grounding of the power panel 4 is achieved, thereby ensuring the grounding effect of the power panel 4 and improving the safety performance of the dishwasher.

[0059] In addition, the elastic grounding sheet 11 has a large area and a large contact area with the shell 3, which can improve the electrical connection effect of the elastic grounding sheet 11 and the shell 3.

[0060] The grounding structure 1 further comprises a connecting piece 13 having electrical conductivity for connecting the power panel 4 and the elastic grounding sheet 11.

[0061] The connecting piece 13 is made of metal material, and the elastic grounding sheet 11 and the power panel 4 are conducted through the connecting piece 13 to achieve electrical connection.

[0062] As shown in Figure 1As shown, the elastic grounding piece 11 is a metal sheet that is bent toward the side of the outer casing 3. The part that contacts the outer casing 3 has an upward-facing flange, so that the part of the elastic grounding piece 11 that contacts the outer casing 3 has a smooth contact surface, preventing scratches with the outer casing 3, avoiding wear on the elastic grounding piece 11 and the outer casing 3, affecting the conductivity, and reducing the service life of the dishwasher.

[0063] The grounding structure 1 also includes a sealing part 12, which is disposed on the connector 13 to prevent water from entering the power board 4 through the connector 13.

[0064] The sealing part 12 is made of rubber, which can prevent moisture from the outside of the base 2 from entering the power board 4, prevent the power board 4 from leaking electricity, reduce electrical accidents, further improve the safety performance of the dishwasher, and ensure the safety of users' lives.

[0065] The sealing part 12 is located between the power board 4 and the elastic grounding piece 11; preferably, the sealing part 12 is disposed close to the elastic grounding piece 11.

[0066] As a preferred option, such as Figure 1 As shown, the sealing part 12 is fitted to the elastic grounding piece 11.

[0067] By adopting the above solution, moisture can be prevented from entering the interior of the base 2 through the gap at the connection between the elastic grounding piece 11 and the connector 13, and from coming into contact with the power board 4, thereby causing leakage of the power board 4. This further ensures the sealing effect of the sealing part 12, improves the safety performance of the dishwasher, and protects the life safety of the user.

[0068] The elastic grounding piece 11 is located on the side of the power board 4 facing the outer casing 3.

[0069] As a preferred option, such as Figure 1 As shown, the elastic grounding piece 11 is disposed outside the base 2, and one end of the connector 13 connected to the elastic grounding piece 11 is located outside the base 2. The connector 13 is inserted from outside the base 2 to connect the elastic grounding piece 11, the power board 4, and the sealing part 12. The fact that one end of the connector 13 connected to the elastic grounding piece 11 is located outside the base 2 facilitates the connection between the connector 13 and the elastic grounding piece 11, the power board 4, and the sealing part 12, and also facilitates the contact between the elastic grounding piece 11 and the outer casing 3, simplifying the installation method. Furthermore, it reduces the volume of the elastic grounding piece 11 and lowers production costs.

[0070] like Figure 1 and Figure 2As shown, the connecting piece 13 is a columnar structure; the elastic grounding sheet 11, the sealing part 12 and the power board 4 are all provided with a socket matching the columnar structure; the connecting piece 13 is inserted into the socket and is connected with the elastic grounding sheet 11, the sealing part 12 and the power board 4.

[0071] By using the above scheme, the connecting piece 13 is connected with the elastic grounding sheet 11, the sealing part 12 and the power board 4, the connection mode is relatively simple, simple and convenient, in addition, the connection mode can ensure the connection effect of the connecting piece 13 with the elastic grounding sheet 11, the sealing part 12 and the power board 4, which can realize the electrical connection of each conductive part of the grounding structure 1 and the sealing effect of the sealing part 12.

[0072] As shown in the drawings, Figure 2 As shown, one end of the elastic grounding sheet 11 connected with the connecting piece 13 is provided with a first connecting hole 111 matching the connecting piece 13; the power board 4 is provided with a second connecting hole 41 matching the connecting piece 13; the sealing part 12 is an annular sealing ring matching the connecting piece 13.

[0073] The outer diameter of the connecting piece 13 is equal to the hole diameters of the first connecting hole 111, the second connecting hole 41 and the annular sealing ring, which ensures the close connection of the four, and further ensures the sealing and conductivity of the grounding structure 1.

[0074] As a preferred scheme, as shown in the drawings, Figure 1 The connecting piece 13 penetrates the first connecting hole 111, the second connecting hole 41 and the annular sealing ring.

[0075] The base 2 is provided with a containing hole 21 matching the connecting piece 13, the containing hole 21 is coaxially arranged with the socket on the power board 4, and is used for containing the part of the connecting piece 13 placed in the base 2.

[0076] The hole diameter of the containing hole 21 is equal to the outer diameter of the connecting piece 13.

[0077] As shown in the drawings, Figure 1 The elastic grounding sheet 11 and the sealing part 12 are arranged on the side of the containing hole 21 close to the base 2. One end of the base 2 located at the containing hole 21 and facing the shell 3 is provided with a groove 23 matching the sealing part 12, the sealing part 12 is arranged in the groove 23, the elastic grounding sheet 11 is arranged on the side of the sealing part 12 facing the shell 3 and is located on the surface of the base 2 and in surface contact with the sealing part 12.

[0078] Further, as shown in the drawings, Figure 1 The power board 4 is arranged in the middle of the containing hole 21.

[0079] The power board 4 is fixedly arranged inside the base 2, the accommodating hole 21 passes through the power board 4, so that the second connecting hole 41 is part of the accommodating hole 21, the connecting piece 13 passes through the first connecting hole 111, the sealing ring, and is inserted into the accommodating hole 21 to relatively fix the elastic grounding sheet 11, the sealing part 12 and the power board 4.

[0080] Since the accommodating hole 21 matches the connecting piece 13, the connecting piece 13 can be prevented from shaking in the base 2, the stability of the connecting piece 13 is ensured, in addition, the power board 4 is arranged in the middle of the accommodating hole 21, the connecting effect of the connecting piece 13 and the power board 4 is ensured, and the electric connection effect of the connecting piece 13, the elastic grounding sheet 11 and the power board 4 is further ensured.

[0081] As shown in Figure 1 , the axial length of the accommodating hole 21 is greater than the axial length of the connecting piece 13 located in the accommodating hole 21. The connecting piece 13 is facilitated to be inserted into the accommodating hole 21, in addition, when the connecting piece 13 needs to be replaced, the accommodating hole 21 can adapt to connecting pieces 13 of various axial lengths, and the applicability is stronger.

[0082] As shown in Figure 1 and Figure 2 , the connecting piece 13 is movably arranged on the base 2, the base 2 is provided with a fixing piece 5 matched with the connecting piece 13, for fixing the connecting piece 13; preferably, the fixing piece 5 is arranged close to the power board 4, on the side of the power board 4 facing the shell 3.

[0083] The fixing piece 5 of the present application facilitates the fastening of the connecting piece 13, ensures the stability of the relative positions of the connecting piece 13, the elastic grounding sheet 11, the power board 4 and the sealing part 12, further ensures the connecting effect, ensures the grounding effect of the power board 4, and improves the safety performance of the dishwasher. In addition, the fixing piece 5 is arranged on the side close to the power board 4 facing the shell 3, without exerting pressure on the power board 4, which can effectively prevent the structure of the power board 4 from being damaged due to the fastening of the fixing piece 5 on the connecting piece 13, and further cause electric leakage.

[0084] As shown in Figure 2 , the base 2 is a combined structure, divided into upper and lower parts, and the power board 4 is clamped in the middle of the base 2.

[0085] Further, the upper end of the lower base 2 is provided with a mounting hole 22 for mounting the fixing piece 5. The accommodating hole 21 is located in the upper and lower bases 2 respectively, and the fixing piece 5 is provided with a through hole matched with the connecting piece 13, and the through hole of the connecting piece 13 cooperates with the accommodating hole 21 on the base 2 to accommodate the connecting piece 13.

[0086] Further, as shown in Figure 1 and Figure 2As shown, the connecting member 13 is a bolt, and the fixing member 5 is a nut.

[0087] like Figure 1 As shown, the bolt head is secured to the outside of the base 2, and the stud is inserted into the receiving hole 21. Since the bolt is only threadedly connected to the nut, and the bolt is simply connected to the elastic grounding plate 11, the sealing part 12, and the power board 4 through holes rather than through threads, this effectively prevents wear of the grounding structure 1 caused by friction from threaded connections, or even breakage of the connector 13, which could affect the conductivity of the grounding structure 1 and cause circuit safety hazards.

[0088] The base 2 of the dishwasher of the present invention can be set at the bottom of the dishwasher, located on the bottom surface of the outer shell 3, or it can be set on the side of the dishwasher, located on the side wall of the outer shell 3.

[0089] As one implementation method, such as Figure 1 and Figure 2 As shown, the base 2 is a base located on the outer shell 3. The power board 4 is installed inside the base. The sealing part 12 and the elastic grounding piece 11 are located on the bottom surface of the base. The connector 13 passes through the elastic grounding piece 11 and the sealing part 12, and is inserted into the interior of the base from the bottom surface of the base. It is connected to the power board 4 and the fixing piece 5 located inside the base, so that the power board 4 is electrically connected to the outer shell 3 through the connector 13 and the elastic grounding piece 11.

[0090] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dishwasher, including a housing that is conductive and connected to a grounding wire; The base is disposed within the housing; A power board, installed inside the base, is used to power the dishwasher; A grounding structure is used to connect the power board and the housing, thereby grounding the power board. The grounding structure is characterized by comprising: a connector and an elastic grounding plate; The connector has a conductive columnar structure, with one end connected to the power board and the other end connected to the elastic grounding plate; An elastic grounding plate, which is a metal sheet, is disposed outside the base. One end of the elastic grounding plate is electrically connected to the connector, and the other end is bent toward one side of the outer casing. The contact part between the elastic grounding plate and the outer casing has a smooth contact surface.

2. A dishwasher according to claim 1, characterized in that, The grounding structure also includes a sealing part disposed on the connector to prevent water from entering the power board through the connector.

3. A dishwasher according to claim 2, characterized in that, The sealing part is located between the power board and the elastic grounding plate.

4. A dishwasher according to claim 3, characterized in that, The sealing part is located near the elastic grounding plate.

5. A dishwasher according to claim 4, characterized in that, The sealing part is fitted to the elastic grounding piece.

6. A dishwasher according to claim 1, characterized in that, One end of the connector that is connected to the elastic grounding plate is located outside the base.

7. A dishwasher according to claim 3, characterized in that, The elastic grounding plate, the sealing part, and the power board are all provided with insertion holes that match the columnar structure; the connector is inserted into the insertion holes and is connected to the elastic grounding plate, the sealing part, and the power board.

8. A dishwasher according to claim 7, characterized in that, The base is provided with a receiving hole that matches the connector. The receiving hole is coaxially arranged with the socket on the power board and is used to accommodate the part of the connector placed in the base.

9. A dishwasher according to claim 8, characterized in that, The power board is located in the middle of the receiving hole.

10. A dishwasher according to claim 9, characterized in that, The axial length of the receiving hole is greater than the axial length of the connector located within the receiving hole.

11. A dishwasher according to any one of claims 1-10, characterized in that, The connector is movably mounted on the base, and the base is provided with a fastener that matches the connector for fixing the connector.

12. A dishwasher according to claim 11, characterized in that, The fastener is located near the power board, on the side of the power board facing the outer casing.

13. A dishwasher according to claim 12, characterized in that, The connecting component is a bolt, and the fixing component is a nut.

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