CN213340743U

CN213340743U - Household appliance

Info

Publication number: CN213340743U
Application number: CN202021535363.2U
Authority: CN
Inventors: 欧阳景权; 李志鹏; 李向冕
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-06-01
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a household electrical appliances field especially relates to a household electrical appliances. The household appliance comprises a metal shell; one end of the grounding insertion sheet is integrally formed with the metal shell, and the other end of the grounding insertion sheet extends out of the metal shell; one end of the grounding terminal is provided with a connecting part, the connecting part is provided with a connecting hole for inserting the grounding insertion sheet, and the other end of the grounding terminal is grounded; and the ground insert is adapted to be inserted into the connection aperture. In household electrical appliances, metal casing has integrated into one piece's ground connection inserted sheet, and ground connection inserted sheet is directly pegged graft with ground terminal and is installed fixedly through interference fit, consequently can leave out extra installation part and process, simplifies the installation, is favorable to reduction in production cost and the production degree of difficulty to improve production efficiency.

Description

Household appliance

Technical Field

The utility model relates to a household electrical appliances field especially relates to a household electrical appliances.

Background

With the improvement of living standard and the development of science and economy, various household appliances have been deeply penetrated into the lives of people, wherein the refrigerator is a necessary appliance in modern life. Since various home electric appliances need to be powered on for use, and if leakage occurs, the metal portion may be charged, and therefore, a grounding structure is indispensable from the viewpoint of safety.

When a metal case of a home appliance is grounded, since the thickness thereof is generally small, it is impossible to directly fix the metal case with a grounding screw or a rivet. Therefore, it is common to weld an additional grounding member to the metal shell to thicken the connection portion in order to fix the grounding screw or rivet the grounding terminal.

However, in the installation process of the method, the process of welding the grounding part is complex, the assembly period is long and many parts are involved by adopting a screw or riveting mode, the production cost and the production difficulty are increased, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem, the utility model provides a household electrical appliances to leave out extra part and process, simplify the installation, be favorable to reduction in production cost and the production degree of difficulty, and improve production efficiency.

Other features and advantages of the invention will be apparent from the following detailed description, or may be learned by practice of the invention in part.

According to the utility model discloses an aspect of the embodiment provides a household electrical appliances, include:

a metal housing;

one end of the grounding insertion sheet is integrally formed with the metal shell, and the other end of the grounding insertion sheet extends out of the metal shell;

one end of the grounding terminal is provided with a connecting part, the connecting part is provided with a connecting hole for inserting the grounding insertion sheet, and the other end of the grounding terminal is grounded; and the ground insert is adapted to be inserted into the connection aperture.

In some embodiments of the present invention, on the basis of the above embodiments, the connecting portion of the ground terminal is in interference fit with the ground insertion sheet.

The utility model discloses an in some embodiments, on the basis of above embodiment, the ground connection inserted sheet includes the base plate and sets up the joint protrusion on the base plate, and the joint hole is connecting tube, and the joint protrusion stretches into connecting tube and with connecting tube interference fit.

In some embodiments of the present invention, on the basis of the above embodiments, the ground insertion sheet includes at least two connection protrusions, and the connection portion is correspondingly provided with at least two connection pipes.

The utility model discloses an in some embodiments, on the basis of above embodiment, the two sides limit intussuseption of connecting portion forms two connecting tubes that correspond, and wherein, the opening is left to the connecting tube side, connects bellied top surface and base plate and keeps away from to be connected the distance between the bellied surface and be greater than the open-ended width to the width of ground connection inserted sheet is less than the width in connection hole.

In some embodiments of the present invention, on the basis of the above embodiments, the ground insertion sheet includes a guide portion, and the guide portion is disposed at a connection end portion of the ground insertion sheet away from the metal shell and used for guiding the ground insertion sheet to be inserted into the connection hole.

In some embodiments of the present invention, on the basis of the above embodiments, the guide portion includes at least one chamfer provided on the connection end portion.

In some embodiments of the present invention, on the basis of the above embodiments, a supporting portion is provided between the grounding insertion sheet and the metal casing, and the supporting portion is connected to the metal casing and is used for supporting the grounding insertion sheet.

In some embodiments of the present invention, on the basis of the above embodiments, the supporting portion is a triangular supporting portion, and two sides of the triangular supporting portion are respectively connected to the grounding insertion piece and the metal shell.

The utility model discloses an in some embodiments, on the basis of above embodiment, household electrical appliances are the refrigerator, and metal casing is the backplate or the bottom plate of the case of refrigerator, and the ground connection inserted sheet sets up in the refrigerator bottom, and ground terminal passes through the supporting baseplate ground connection of metal casing and refrigerator.

The utility model discloses an in the embodiment, metal casing has integrated into one piece's ground connection inserted sheet, and ground connection inserted sheet is directly pegged graft with the ground terminal and is installed fixedly through interference fit, consequently can omit extra installation part and process, simplifies the installation, is favorable to reduction in production cost and the production degree of difficulty and improves production efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 schematically shows a schematic diagram of a refrigerator structure in an embodiment of the present invention;

fig. 2 schematically illustrates a schematic structural diagram of a ground insert and a ground terminal in an embodiment of the present invention;

figure 3 schematically shows a cross-sectional view of the grounding insert sheet of figure 2;

fig. 4 schematically shows a cross-sectional view of the connection portion of the ground terminal in fig. 2.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the invention.

The utility model provides a household electrical appliance, including metal casing, ground connection inserted sheet and ground terminal. The household appliance can be any kind of household appliances such as a refrigerator, a washing machine, an air conditioner, a microwave oven or a television. In the present invention, a refrigerator will be described as an example, however, this should not be construed as a limitation of the present invention.

Taking a refrigerator as an example for description, please refer to fig. 1, and fig. 1 schematically illustrates a schematic diagram of a refrigerator structure in an embodiment of the present invention. As shown in fig. 1, the refrigerator 100 mainly includes a main body 110 and a base 120. The main body 110 includes a metal housing 111 and a main body side plate 112. The metal shell 111 includes a backplate 111a and a bottom plate 111 b. The metal shell 111 is typically made of sheet metal. The base 120 includes a base side plate 121 and a bottom support plate 122, and a refrigeration system of the refrigerator is disposed in the base 120. The base side plate 121 is made of plastic to reduce the overall weight of the refrigerator, and the bottom support plate 122 may be made of metal such as sheet metal to house the refrigeration system.

The metal housing 110 needs to be grounded to avoid the metal housing 110 being electrified to cause electric shock to the user. The utility model discloses in, the refrigerator still includes ground connection inserted sheet and ground terminal in order to be used for ground connection. One end of the grounding insertion sheet is integrally formed with the metal shell, and the other end of the grounding insertion sheet extends out of the metal shell. One end of the ground terminal is provided with a connection portion for connection with the ground insert, and the other end is grounded through a ground wire. The connecting portion of the ground terminal has a connecting aperture. The ground blade is inserted into the connection aperture at the time of installation to ground the metal case 101. Specifically, in one embodiment, the bottom support plate 122 is grounded by a ground pin of the refrigerator, and a ground terminal of the ground terminal may be connected to the bottom support plate 122 by a ground wire to be grounded by the bottom support plate 122.

The plugging between the grounding insertion sheet and the grounding terminal can adopt an interference fit mode. The interference fit utilizes the elasticity of the materials of the grounding insertion sheet and the grounding terminal to expand and deform the connecting hole on the grounding terminal so as to be sleeved on the grounding insertion sheet. When the connecting hole is restored, the clamping force is generated on the grounding insertion sheet, so that the grounding insertion sheet is connected with the grounding terminal.

The interference fit may be achieved in a variety of ways. The ground insert may include a substrate and a connection protrusion disposed on the substrate. Correspondingly, the connection aperture on the connection portion of the ground terminal is provided as a connection duct. When the grounding plug is connected, the connecting protrusion extends into the connecting pipeline and is in interference fit with the connecting pipeline so as to fix the grounding plug and the grounding terminal.

It will be appreciated that the number of connecting ducts on the ground terminal is the same as the number of connecting projections on the ground insert for connection. The number of the coupling protrusions and the coupling pipes may be one to simplify the coupling structure and the installation process. The ground insert sheet and the ground terminal may also include two or more connection protrusions and connection pipes, respectively, so as to increase the strength and stability of the connection structure.

For ease of description, the ground insert and ground terminals will be described below with reference to specific examples. It should be understood that the following examples are for illustration only and are not intended to limit the invention.

Fig. 2 schematically shows a schematic structural diagram of the ground insert and the ground terminal in an embodiment of the present invention. As shown in fig. 2, the ground blade 210 includes a base 211 and two connection protrusions 212, and is integrally formed with the metal housing 230. Wherein the two connection protrusions 212 are formed by profiling the substrate 211. The ground terminal 220 includes a connection portion 221. Both end edges of the connecting part 221 are curled inward to form two connecting ducts 222 corresponding to the two connecting protrusions 212 and an opening is left at the side of the connecting duct 222 to form a connecting aperture. The opening of the side of the connection pipe 222 allows the connection protrusion 212 to be inserted, and the connection protrusion 212 is interference-fitted with the connection pipe 222.

Specifically, for ease of introduction, please refer to fig. 3 and 4, fig. 3 schematically illustrates a cross-sectional view of the ground blade of fig. 2, and fig. 4 schematically illustrates a cross-sectional view of the connection portion of the ground terminal of fig. 2. As shown, a distance between the upper surface of the coupling protrusion 212 and the lower surface of the base plate 211 is a, and a width of the side opening of the coupling pipe 222 is a, wherein the distance a is greater than the distance a, so that when the coupling protrusion 212 is inserted into the coupling pipe 222, the coupling protrusion 212 and the coupling pipe 222 are deformed by a force to perform an interference fit.

Further, as shown in fig. 3 and 4, the width of the ground insert piece 210 is a width B, and the width of the connection aperture in the connection part 221 is a width B. The width B may be smaller than the width B, so that the connection protrusion 212 does not contact the inner wall of the connection pipe 222 when the ground blade 210 is inserted into the connection portion 221, thereby avoiding an increase in additional friction force, and thus reducing installation difficulty. The width B may also be equal to the width B so that the ground blades 210 cannot move in the width direction after being inserted into the connection portion 221, thereby increasing the stability of the connection.

In this example, the distance between the two coupling projections 212 is shown as distance C in fig. 3, and the distance between the openings of the two coupling ducts 222 is shown as distance C in fig. 4. The distance C is generally smaller than the distance C so that the coupling projection 212 and the coupling pipe 222 can be sufficiently contacted.

In one embodiment, the ground insert and the ground terminal may further include a limiting component thereon so as to limit the distance of the ground insert inserted into the ground terminal, thereby preventing the ground effect from being affected by the incomplete installation or the ground terminal from being damaged by the too deep insertion. Specifically, a limiting groove can be formed in the grounding insertion piece, a limiting bump is correspondingly arranged on the grounding terminal, and when the grounding insertion piece is inserted into the grounding terminal to reach a preset distance, the limiting bump is clamped into the limiting groove to position the grounding insertion piece and the grounding terminal. Specifically, the spacing groove may be provided on a surface of the access tab contacting the ground terminal and have a preset insertion distance with a connection end portion of the access tab. In the connecting hole of the grounding terminal, a limiting lug is correspondingly arranged on the surface contacted with the grounding insertion sheet, and the distance between the limiting lug and the edge of the connecting hole is also a preset insertion distance. In another embodiment, the limit projection may be provided only in the connection aperture of the ground terminal. When the grounding insertion sheet is inserted into the connecting hole to reach a preset insertion distance, the limiting lug blocks the grounding insertion sheet from being inserted continuously.

If the width of ground lug and the width of being connected the hole on the ground terminal usually differ by a little, then need align with both with higher degree of accuracy in the installation, the installation degree of difficulty is higher. Therefore, the grounding insert sheet can also be provided with a guide at the connecting end portion remote from the metal frame. The guide portion is used to guide insertion of the ground terminal for easy installation when the ground terminal is installed to the ground insert. Specifically, the guide portion may be implemented in various ways such as a guide rail, a guide tube, or a guide slot. The guiding portion may also be implemented by using at least one chamfer, and for convenience of description, referring to fig. 2 again, as shown in fig. 2, the ground insert 210 has two chamfers at the connecting end portion inserted into the ground terminal 220 to facilitate the insertion into the ground terminal 220.

The ground insert is subjected to a pressure from the ground terminal during insertion of the ground terminal, and the pressure may cause bending deformation of the ground terminal after being transmitted to a connection point of the ground terminal and the metal frame. Therefore, a supporting part can be arranged between the grounding insertion sheet and the metal shell, and the supporting part is connected with the metal shell and supports against the grounding insertion sheet so as to provide extra supporting force for the grounding insertion sheet and further avoid the deformation of the grounding terminal. In particular, the support may be provided at the connection of the ground insert and the metal housing and use a triangular support. For convenience of introduction, referring to fig. 2, a triangular support portion 240 is disposed between the ground insert 210 and the metal shell 230. One side of the triangular support portion 240 is connected to the ground blade 210, and the other side is connected to the metal shell 230, so as to provide support for the ground blade. The supporting part 240 may be integrally formed with the ground terminal and the metal frame.

The utility model discloses in, metal casing integrated into one piece's ground connection inserted sheet, ground connection inserted sheet and ground terminal are directly pegged graft and are installed fixedly through interference fit, consequently can omit extra part and process, simplify the installation, are favorable to reduction in production cost and the production degree of difficulty to improve production efficiency.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An appliance, comprising:

a metal housing;

the grounding terminal is provided with a connecting part at one end, the connecting part is provided with a connecting hole for the grounding insertion sheet to insert, and the other end of the grounding terminal is grounded; and the ground insert is for insertion into the connection aperture.

2. The household electrical appliance of claim 1, wherein the connecting portion of the ground terminal is in interference fit with the ground insert.

3. The household appliance according to claim 2, wherein the grounding insertion sheet comprises a substrate and a connecting protrusion arranged on the substrate, the connecting hole is a connecting pipe, and the connecting protrusion extends into the connecting pipe and is in interference fit with the connecting pipe.

4. The household electrical appliance according to claim 3, wherein the ground insert comprises at least two connecting protrusions, and the connecting portion is correspondingly provided with at least two connecting pipes.

5. The household appliance according to claim 4, wherein the two corresponding connecting pipes are formed by inward rolling of the two side edges of the connecting portion, wherein an opening is reserved on the side surface of each connecting pipe, the distance between the top surface of each connecting protrusion and the surface of the substrate far away from the corresponding connecting protrusion is greater than the width of the opening, and the width of each grounding insertion sheet is smaller than the width of each connecting hole.

6. The household appliance of claim 1, wherein the ground blade includes a guide portion disposed at a connection end of the ground blade remote from the metal housing and configured to guide insertion of the ground blade into the connection aperture.

7. The appliance of claim 6, wherein the guide portion comprises at least one chamfer disposed on the connection end portion.

8. The household electrical appliance according to claim 1, wherein a support portion is disposed between the ground insert and the metal housing, and the support portion is connected to the metal housing and is used for supporting the ground insert.

9. The household appliance of claim 8, wherein the supporting portion is a triangular supporting portion, and two sides of the triangular supporting portion are respectively connected to the grounding insertion sheet and the metal shell.

10. The household appliance according to claim 1, wherein the household appliance is a refrigerator, the metal housing is a backboard or a bottom board of the refrigerator, the grounding insertion sheet is arranged at the bottom of the refrigerator, and the grounding terminal is grounded with the supporting bottom board of the refrigerator through the metal housing.