End cover, electric assembly and electric appliance

Abstract

The invention provides an end cover, an electric assembly and an electric appliance, the end cover is used for the electric assembly, the end cover comprises a body and a bearing chamber, the bearing chamber is annularly arranged, a first side of the bearing chamber is connected with the body, and a second side of the bearing chamber extends in a direction away from the body along a first direction; the body and the bearing chamber are of an integrated structure made of thermosetting materials.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and particularly relates to an end cover, an electric component and an electrical appliance. Background Art

[0002] At present, in the related art, an end cover is provided in a motor. The material of the end cover can be a metal material, and during the processing, the material can be stamped by a high-speed punching machine and a high-precision drawing die. However, the metal end cover formed by stamping with a high-speed punching machine and a high-precision drawing die has a large weight, which affects the weight of the motor. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, a first aspect of the present invention provides an end cover.

[0005] A second aspect of the present invention provides an electric component.

[0006] A third aspect of the present invention provides an electrical appliance.

[0007] In view of this, a first aspect of the present invention provides an end cover for an electric component. The end cover includes a body and a bearing chamber. The bearing chamber is arranged in a ring shape. The first side of the bearing chamber is connected to the body, and the second side of the bearing chamber extends away from the body in a first direction; wherein, the body and the bearing chamber are an integrally formed structure of a thermosetting material.

[0008] The end cover provided in the present application is for an electric component. Setting the end cover can play a protective role for the electric component. The end cover includes a body and a bearing chamber. The bearing chamber is arranged in a ring shape. The first side of the bearing chamber is connected to the body, and the second side of the bearing chamber extends away from the body in a first direction; wherein, the body and the bearing chamber are an integrally formed structure of a thermosetting material, which can reduce the overall weight of the end cover while simplifying the process difficulty in the production process of the end cover, reducing the production cost of the end cover, and further reducing the production cost of the electric component. At the same time, the integral injection molding of the body and the bearing chamber can also improve the production efficiency of the end cover and the installation efficiency of the electric component. Since one side of the bearing chamber arranged in a ring shape is connected to the body and the other side extends in the first direction, the ring-shaped bearing chamber can improve the smoothness of the bearing rotation and avoid the situation of bearing jamming during the installation and operation of the electric component.

[0009] Meanwhile, due to the strong plasticity of thermosetting materials, the corresponding feeding ratio can be selected according to the shape and size of the end cover, which can improve the material utilization rate. At the same time, since thermosetting materials have high stability and insulation properties, there is no need to set up anti-electro-erosion components, and there is no need to conduct the end cover additionally, reducing the cost of the electric component, reducing the operation steps of the electric component, and improving the working efficiency of the electric component.

[0010] In addition, the end cover in the above technical solution provided by the present invention may further have the following additional technical features:

[0011] In some technical solutions of the present invention, optionally, the integral structure of the thermosetting material includes the integral structure of unsaturated polyester bulk molding compound.

[0012] In this technical solution, the integral structure of the thermosetting material includes the integral structure of unsaturated polyester bulk molding compound. By setting the unsaturated polyester bulk molding compound as the thermosetting material with an integral structure, the flame retardancy and insulation of the end cover during operation can be improved, realizing anti-static electricity of the end cover during the operation of the electric component. At the same time, due to the high chemical stability of the unsaturated polyester bulk molding compound, the body and bearing chamber made of the unsaturated polyester bulk molding compound can prevent electro-corrosion and avoid the mutual fusion of the end cover and grease, improving the durability of the end cover, extending the service life of the end cover, and reducing the maintenance cost of the electric component.

[0013] At the same time, using the integral structure of unsaturated polyester bulk molding compound as the integral structure of the thermosetting material can reduce the shrinkage rate after the material is formed and cooled, and improve the manufacturing accuracy of the end cover.

[0014] In some technical solutions of the present invention, optionally, the end cover further includes connecting ribs. The number of connecting ribs is multiple. The multiple connecting ribs are connected to the body and the bearing chamber, and are arranged at intervals along the outer periphery of the bearing chamber.

[0015] In this technical solution, the end cover further includes connecting ribs. The number of connecting ribs is multiple. The multiple connecting ribs are connected to the body and the bearing chamber, and are arranged at intervals along the outer periphery of the bearing chamber. Furthermore, the stability of the bearing chamber can be improved by setting the connecting ribs, and the stability of the end cover structure can be improved to enhance the strength of the end cover structure, facilitating the installation of the end cover and extending the service life of the end cover at the same time.

[0016] When injection-molding the end cap, setting multiple connecting ribs connected to the bearing chamber can also improve the consistency of the shrinkage deformation of the bearing chamber during the injection molding process, thereby making the inner diameters of various positions of the bearing chamber more consistent after injection molding. During the installation of the motor, the higher consistency of the inner diameters of various positions of the bearing chamber makes the inner space of the bearing chamber fit better with the bearing size, facilitating the installation of the bearing, reducing the wear risk between the bearing and the bearing chamber, and improving the stability of the bearing during operation.

[0017] Specifically, the number of connecting ribs can be set according to the actual size of the end cap.

[0018] Specifically, the size and number of the connecting ribs can be adjusted according to the shrinkage ratio of the injection-molding material before and after processing.

[0019] In some technical solutions of the present invention, optionally, the connecting ribs, the body, and the bearing chamber are of an integral structure.

[0020] In this technical solution, the connecting ribs, the body, and the bearing chamber being of an integral structure can reduce the processing difficulty of the end cap, thereby improving the production efficiency of the end cap and reducing the installation steps.

[0021] In some technical solutions of the present invention, optionally, the height of the connecting rib in the first direction is less than or equal to the height of the bearing chamber in the first direction.

[0022] In this technical solution, the height of the connecting rib in the first direction being less than or equal to the height of the bearing chamber in the first direction can prevent the connecting rib from protruding from the bearing chamber in the first direction, thereby preventing the connecting rib from interfering with the bearing chamber during the operation of the electric component and also preventing interference with the bearing, improving the stability of the electric component.

[0023] In some technical solutions of the present invention, optionally, the connecting rib has a first edge, a second edge, and a third edge. The first edge extends along the bearing chamber, the second edge extends along the body, and the second edge and the third edge are connected in sequence; wherein, the included angle between the third edge and the surface of the body on the side where the bearing chamber is provided is a first included angle, and the first included angle is greater than or equal to 120 degrees and less than or equal to 160 degrees.

[0024] In this technical solution, the connecting rib has a first edge, a second edge and a third edge. The first edge extends along the bearing chamber, the second edge extends along the body, and the second edge and the third edge are connected in sequence. Among them, the included angle between the third edge and the surface of the body on the side where the bearing chamber is provided is a first included angle, and the first included angle is greater than or equal to 120 degrees and less than or equal to 160 degrees. By setting the included angle between the third edge and the surface of the body on the side where the bearing chamber is provided to be greater than 120 degrees, the strength between the connecting rib, the body and the bearing chamber can be improved. At the same time, restricting the first included angle to be greater than or equal to 120 degrees and less than or equal to 160 degrees can reduce the volume of the connecting rib while ensuring the structural strength, and further reduce the weight of the connecting rib. Therefore, the overall weight of the overall end cover can be reduced, the production cost of the end cover can be reduced, and the material utilization rate can be improved.

[0025] Specifically, the first included angle can be 120 degrees, the first included angle can also be 130 degrees, the first included angle can also be 140 degrees, the first included angle can also be 150 degrees, and the first included angle can also be 160 degrees.

[0026] In some technical solutions of the present invention, optionally, the length L1 of the third edge in the second direction, the height H of the connecting rib in the first direction, and the angle θ1 of the first included angle satisfy the following relationship: L1 = H×tan(π - θ1).

[0027] In this technical solution, the length L1 of the third edge in the second direction, the height H of the connecting rib in the first direction, and the angle θ1 of the first included angle satisfy the following relationship: L1 = H×tan(π - θ1). Therefore, for the third edge and the connecting rib, by setting the dimension range and defining the dimensional relationship between the length L1 of the third edge in the second direction, the height H of the connecting rib in the first direction, and the angle θ1 of the first included angle, a triangular structure can be formed for the connecting rib, the stability between the connecting rib, the body and the bearing chamber can be improved, the stability of the overall structure can be improved, the service life of the end cover can be extended, and at the same time, the rigidity of the end cover can be improved. At the same time, the production cost of the end cover can be reduced, and further the production cost of the electric component can be reduced. At the same time, the integral injection molding of the body and the bearing chamber can also improve the production efficiency of the end cover and the installation efficiency of the electric component. Since one side of the annular bearing chamber is connected to the body and the other side extends in the first direction, the annular bearing chamber can improve the smoothness of the bearing rotation and avoid the situation of bearing jamming during the installation and operation of the electric component.

[0028] Specifically, the length L1 of the third edge in the second direction, the height H of the connecting rib in the first direction, and the angle θ1 of the first included angle can be adjusted according to the actual requirements of the end cover according to the relationship L1 = H×tan(π - θ1).

[0029] In some technical solutions of the present invention, optionally, the thickness of the rear end of the connecting rib is greater than or equal to 2 millimeters.

[0030] In this technical solution, the thickness of the rear end of the connecting rib is greater than or equal to 2 mm, which can improve the strength of the connecting rib while facilitating the injection molding of the end cover and avoiding the influence of the too thin thickness of the connecting rib on the injection molding effect of the end cover.

[0031] At the same time, increasing the thickness of the end cover can reduce the requirements for the size of the injection mold of the end cover.

[0032] Specifically, the size of the connecting rib can be set according to the actual size of the end cover.

[0033] In some technical solutions of the present invention, optionally, the body is provided with a first groove, the first groove is arranged along the inner circumference of the bearing chamber, and the first groove is located at the connection between the body and the bearing chamber.

[0034] In this technical solution, the body is provided with a first groove, the first groove is arranged along the inner circumference of the bearing chamber, and the first groove is located at the connection between the body and the bearing chamber. The first groove can provide a buffer area for the bearing chamber, while achieving root clearing at the root of the bearing chamber, avoiding right angles or acute angles in the injection mold, improving the success rate of injection molding, and at the same time improving the injection molding processing effect, facilitating the production and installation of the end cover.

[0035] In some technical solutions of the present invention, optionally, the depth of the first groove in the first direction is a first depth, the first depth is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; the width of the first groove in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth.

[0036] In this technical solution, the depth of the first groove in the first direction is a first depth, the first depth is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; the width of the first groove in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth. By setting the size range of the first groove such that the width of the first groove in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth, it is possible to facilitate the injection molding processing of the end cover, improve the processing efficiency, and at the same time avoid the influence of the bearing chamber on the positioning of the bearing, which can improve the accuracy of bearing positioning, meet the processing technology requirements of the mold, and improve the production efficiency.

[0037] The second aspect of the present invention provides an electric component, including the end cover in any of the above technical solutions.

[0038] The electric component provided by this application includes the end cover in any of the above technical solutions, so this electric component includes all the beneficial effects of the end cover in any of the above technical solutions.

[0039] The third aspect of the present invention provides an electrical appliance, including an end cover as in any of the above technical solutions; or an electric component as in any of the above technical solutions.

[0040] An electrical appliance provided by the present application includes an end cover as in any of the above technical solutions; or an electric component as in any of the above technical solutions. Therefore, the electrical appliance has all the beneficial effects of the end cover as in any of the above technical solutions, or the electric component as in any of the above technical solutions.

[0041] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 is a schematic structural diagram of an end cover according to an embodiment of the present invention;

[0044] Figure 2 is one of the sectional views of the end cover according to an embodiment of the present invention;

[0045] Figure 3 is another sectional view of the end cover according to an embodiment of the present invention;

[0046] Figure 4 is Figure 3 a partial schematic view of the end cover shown at C according to an embodiment of the present invention.

[0047] Wherein, Figures 1 to 4 the corresponding relationship between the reference numerals in the

[0048] drawings and the component names is: DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0050] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0051] Refer to the following Figures 1 to 4 to describe the end cap 100, the electric component and the electrical appliance according to some embodiments of the present invention.

[0052] As Figure 1 shown, a first aspect of the present invention provides an end cap 100 for an electric component. The end cap 100 includes a body 110 and a bearing chamber 120. The bearing chamber 120 is arranged in a ring shape. The first side of the bearing chamber 120 is connected to the body 110, and the second side of the bearing chamber 120 extends in a first direction away from the body 110. Wherein, the body 110 and the bearing chamber 120 are an integrally formed structure of a thermosetting material.

[0053] The end cap 100 provided in the present application is for an electric component. Setting the end cap 100 can protect the electric component. The end cap 100 includes a body 110 and a bearing chamber 120. The bearing chamber 120 is arranged in a ring shape. The first side of the bearing chamber 120 is connected to the body 110, and the second side of the bearing chamber 120 extends in a first direction away from the body 110. Wherein, the body 110 and the bearing chamber 120 are an integrally formed structure of a thermosetting material, which can reduce the overall weight of the end cap 100 while simplifying the process difficulty in the production process of the end cap 100, reducing the production cost of the end cap 100, and further reducing the production cost of the electric component. At the same time, the integral injection molding of the body 110 and the bearing chamber 120 can also improve the production efficiency of the end cap 100 and the installation efficiency of the electric component. Since one side of the bearing chamber 120 arranged in a ring shape is connected to the body 110 and the other side extends in the first direction, the ring-shaped bearing chamber 120 can improve the smoothness of the bearing rotation and avoid the situation of bearing jamming during the installation and operation of the electric component.

[0054] At the same time, due to the strong plasticity of the thermosetting material, the corresponding feeding ratio can be selected according to the shape and size of the end cap 100, which can improve the material utilization rate. At the same time, since the thermosetting material has high stability and insulation properties, it is no longer necessary to set anti-electro-erosion components and there is no need to perform additional conduction operations on the end cap 100, reducing the cost of the electric component, reducing the operation steps of the electric component, and improving the working efficiency of the electric component.

[0055] Specifically, the end cap 100 can also be provided with a positioning groove 150, through which the end cap 100 can be positioned, and at the same time, it is also convenient for the installation of the end cap 100, improving the overall stability.

[0056] Specifically, the end cap 100 can also be provided with wire-fixing teeth 140, through which the wires of the motor can be fixed, improving the overall neatness and protecting the wires at the same time.

[0057] This embodiment provides an end cap 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0058] As Figure 2 and Figure 3 shown, the one-piece structure of the thermosetting material includes the one-piece structure of the unsaturated polyester bulk molding compound.

[0059] In this embodiment, the one-piece structure of the thermosetting material includes the one-piece structure of the unsaturated polyester bulk molding compound. By setting the unsaturated polyester bulk molding compound as the thermosetting material of the one-piece structure, the flame retardancy and insulation of the end cap 100 during operation can be improved, so that the end cap 100 can prevent static electricity during the operation of the electric component. At the same time, due to the high chemical stability of the unsaturated polyester bulk molding compound, the body 110 and the bearing chamber 120 made of the unsaturated polyester bulk molding compound can prevent electrochemical corrosion and avoid the mutual fusion of the end cap 100 and the grease, improve the durability of the end cap 100, extend the service life of the end cap 100, and reduce the maintenance cost of the electric component.

[0060] At the same time, using the one-piece structure of the unsaturated polyester bulk molding compound as the one-piece structure of the thermosetting material can reduce the shrinkage rate after the material is formed and cooled, and improve the manufacturing accuracy of the end cap 100.

[0061] Specifically, when using the unsaturated polyester bulk molding compound material to make the end cap 100, the shrinkage rate after the material is formed and cooled is less than 0.005 mm, which can reduce the cost of the end cap 100 and facilitate the injection molding process of the end cap 100.

[0062] This embodiment provides an end cap 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0063] As Figure 1 and Figure 2 shown, the end cap 100 further includes connecting ribs 130. The number of the connecting ribs 130 is multiple. The multiple connecting ribs 130 are connected to the body 110 and are connected to the bearing chamber 120, and are arranged at intervals along the outer periphery of the bearing chamber 120.

[0064] In this embodiment, the end cap 100 further includes connecting ribs 130. The number of the connecting ribs 130 is multiple. The multiple connecting ribs 130 are connected to the body 110 and are connected to the bearing chamber 120, and are arranged at intervals along the outer periphery of the bearing chamber 120. Furthermore, the stability of the bearing chamber 120 can be improved by setting the connecting ribs 130, and the stability of the structure of the end cap 100 can be improved, so as to enhance the strength of the structure of the end cap 100, facilitate the installation of the end cap 100 and at the same time extend the service life of the end cap 100.

[0065] When the end cover 100 is injection-molded, a plurality of connecting ribs 130 connected to the bearing chamber 120 can also improve the consistency of the shrinkage deformation of the bearing chamber 120 during the injection molding process, thereby making the inner diameters of various positions of the bearing chamber 120 have higher consistency after the injection molding is completed. During the installation process of the motor, the inner diameters of various positions of the bearing chamber 120 have higher consistency, making the inner space of the bearing chamber 120 more fitting with the bearing size, facilitating the installation of the bearing, reducing the wear risk between the bearing and the bearing chamber 120, and improving the stability of the bearing during operation.

[0066] Specifically, the number of the connecting ribs 130 can be set according to the actual size of the end cover 100.

[0067] Specifically, the size and number of the connecting ribs 130 can be adjusted according to the shrinkage ratio of the injection molding material before and after processing.

[0068] This embodiment provides an end cover 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0069] As Figure 1 and Figure 2 shown, the connecting ribs 130, the body 110, and the bearing chamber 120 are of an integral structure.

[0070] In this embodiment, the connecting ribs 130, the body 110, and the bearing chamber 120 are of an integral structure, which can reduce the processing difficulty of the end cover 100, thereby improving the production efficiency of the end cover 100 and reducing the installation steps.

[0071] This embodiment provides an end cover 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0072] As Figure 1 and Figure 2 shown, the height of the connecting ribs 130 in the first direction is less than or equal to the height of the bearing chamber 120 in the first direction.

[0073] In this embodiment, the height of the connecting ribs 130 in the first direction is less than or equal to the height of the bearing chamber 120 in the first direction, which can prevent the connecting ribs 130 from protruding beyond the bearing chamber 120 in the first direction, thereby preventing the connecting ribs 130 from interfering with the bearing chamber 120 during the operation of the electric component, and also preventing interference with the bearing, and improving the stability of the electric component.

[0074] Specifically, the height of the bearing chamber 120 in the first direction is h1.

[0075] Specifically, as Figure 3 shown, the first direction is the direction M, and the second direction is the direction N.

[0076] This embodiment provides an end cover 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0077] As Figure 1 and Figure 3 shown, the connecting rib 130 has a first edge 132, a second edge 134 and a third edge 136. The first edge 132 extends along the bearing chamber 120, the second edge 134 extends along the body 110, and the second edge 134 and the third edge 136 are connected in sequence; wherein, the included angle between the third edge 136 and the surface of the body 110 on the side where the bearing chamber 120 is provided is a first included angle, and the first included angle is greater than or equal to 120 degrees and less than or equal to 160 degrees.

[0078] In this embodiment, the connecting rib 130 has a first edge 132, a second edge 134 and a third edge 136. The first edge 132 extends along the bearing chamber 120, the second edge 134 extends along the body 110, and the second edge 134 and the third edge 136 are connected in sequence; wherein, the included angle between the third edge 136 and the surface of the body 110 on the side where the bearing chamber 120 is provided is a first included angle, and the first included angle is greater than or equal to 120 degrees and less than or equal to 160 degrees. By setting the included angle between the third edge 136 and the surface of the body 110 on the side where the bearing chamber 120 is provided to be greater than 120 degrees, the strength between the connecting rib 130, the body 110 and the bearing chamber 120 can be improved. At the same time, restricting the first included angle to be greater than or equal to 120 degrees and less than or equal to 160 degrees can, while ensuring the structural strength, reduce the volume of the connecting rib 130, and thus reduce the weight of the connecting rib 130. Therefore, the overall weight of the entire end cover 100 can be reduced, the production cost of the end cover 100 can be lowered, and the utilization rate of materials can be improved.

[0079] Specifically, the first included angle can be 120 degrees, the first included angle can also be 130 degrees, the first included angle can also be 140 degrees, the first included angle can also be 150 degrees, and the first included angle can also be 160 degrees.

[0080] This embodiment provides an end cover 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0081] As Figure 1 , Figure 2 and Figure 3 shown, the length L1 of the third edge 136 in the second direction, the height H of the connecting rib 130 in the first direction, and the angle θ1 of the first included angle satisfy the following relationship: L1 = H × (π - θ1).

[0082] In this embodiment, the length L1 of the third edge 136 in the second direction, the height H of the connecting rib 130 in the first direction, and the angle θ1 of the first included angle satisfy the following relationship: L1 = H×(π - θ1). Therefore, for the third edge 136 and the connecting rib 130, by setting the dimension range and defining the dimensional relationship among the length L1 of the third edge 136 in the second direction, the height H of the connecting rib 130 in the first direction, and the angle θ1 of the first included angle, the connecting rib 130 can form a triangular structure, improving the stability between the connecting rib 130, the body 110, and the bearing chamber 120, enhancing the stability of the overall structure, extending the service life of the end cover 100, improving the rigidity of the end cover 100, reducing the production cost of the end cover 100, and further reducing the production cost of the electric component. At the same time, the integral injection molding of the body 110 and the bearing chamber 120 can also improve the production efficiency of the end cover 100 and the installation efficiency of the electric component. Since one side of the annular bearing chamber 120 is connected to the body 110 and the other side extends in the first direction, the annular structure of the bearing chamber 120 can improve the smoothness of the bearing rotation and avoid the situation of bearing jamming during the installation and operation of the electric component.

[0083] Specifically, according to the actual requirements of the end cover 100, the length L1 of the third edge 136 in the second direction, the height H of the connecting rib 130 in the first direction, and the angle θ1 of the first included angle can be adjusted according to the relationship L1 = H×tan(π - θ1).

[0084] This embodiment provides an end cover 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

[0085] As Figure 1 、 Figure 2 and Figure 3 shown, the thickness of the rear end of the connecting rib 130 is greater than or equal to 2 millimeters.

[0086] In this embodiment, the thickness of the rear end of the connecting rib 130 is greater than or equal to 2 millimeters, which can improve the strength of the connecting rib 130 while facilitating the injection molding of the end cover 100 and avoiding the influence of the too thin thickness of the connecting rib 130 on the injection molding effect of the end cover 100.

[0087] At the same time, increasing the thickness of the end cover 100 can reduce the requirements for the size of the injection molding model of the end cover 100.

[0088] Specifically, the size of the connecting rib 130 can be set according to the actual size of the end cover 100.

[0089] This embodiment provides an end cover 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

[0090] AsFigure 2 and Figure 3 As shown in Figure 3 , the body 110 is provided with a first groove 112. The first groove 112 is arranged along the inner circumference of the bearing chamber 120, and the first groove 112 is located at the connection between the body 110 and the bearing chamber 120.

[0091] In this embodiment, the body 110 is provided with a first groove 112. The first groove 112 is arranged along the inner circumference of the bearing chamber 120, and the first groove 112 is located at the connection between the body 110 and the bearing chamber 120. The first groove 112 can provide a buffer area for the bearing chamber 120. While achieving root clearing at the root of the bearing chamber 120, it avoids right angles or acute angles in the injection mold, improves the success rate of injection molding, and at the same time improves the injection molding processing effect, facilitating the production and installation of the end cover 100.

[0092] This embodiment provides an end cover 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

[0093] As Figure 2 and Figure 3 shown, the depth of the first groove 112 in the first direction is the first depth. The first depth is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; the width of the first groove 112 in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth.

[0094] In this embodiment, the depth of the first groove 112 in the first direction is the first depth. The first depth is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; the width of the first groove 112 in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth. By setting the dimension range of the first groove 112 such that the width of the first groove 112 in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth, it can facilitate the injection molding processing of the end cover 100, improve the processing efficiency, and at the same time avoid the influence of the bearing chamber 120 on the positioning of the bearing, which can improve the accuracy of bearing positioning, meet the processing technology requirements of the mold, and improve the production efficiency.

[0095] Specifically, as Figure 3 shown, the width of the first groove 112 in the second direction is L2.

[0096] Specifically, as Figure 4 shown, the first depth is t.

[0097] Specifically, the first depth can be 0.3 mm, the first depth can be 0.4 mm, the first depth can be 0.5 mm, and the first depth can be 0.6 mm.

[0098] In the second aspect of the present invention, an electric component is provided, which includes the end cover 100 in any of the above embodiments.

[0099] The electric component provided in this application includes the end cover 100 in any of the above embodiments. Therefore, this electric component includes all the beneficial effects of the end cover 100 in any of the above embodiments.

[0100] In the third aspect of the present invention, an electrical appliance is provided, which includes the end cover 100 in any of the above embodiments; or the electric component in any of the above embodiments.

[0101] An electrical appliance provided in this application includes the end cover 100 in any of the above embodiments; or the electric component in any of the above embodiments. Therefore, this electrical appliance has all the beneficial effects of the end cover 100 in any of the above embodiments, or the electric component in any of the above embodiments.

[0102] Specifically, the electric component can be a motor or a compressor.

[0103] The electrical appliance can be an air conditioner, an electric fan or a refrigerator.

[0104] In the claims, the description of the specification and the drawings of the present invention, the term "a plurality" means two or more, unless otherwise explicitly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for more convenient description of the present invention and to make the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation, be constructed and operated in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0105] In the claims, the description of the specification and the drawings of the present invention, the description of terms such as "an embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the description of the specification and the drawings of the present invention, the schematic expression of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0106] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An end cover, characterized in that, the end cover is for an electric component, and the end cover comprises: a body; a bearing chamber, which is arranged in a ring shape, a first side of the bearing chamber is connected to the body, and a second side of the bearing chamber extends away from the body in a first direction; wherein, the body and the bearing chamber are an integrally formed structure of a thermosetting material.

2. The end cover according to claim 1, characterized in that, the integrally formed structure of the thermosetting material comprises an integrally formed structure of unsaturated polyester bulk molding compound.

3. The end cover according to claim 1, characterized in that, the end cover further comprises: connecting ribs, the number of the connecting ribs is multiple, the multiple connecting ribs are connected to the body and are connected to the bearing chamber, and are arranged at intervals along the outer periphery of the bearing chamber.

4. The end cover according to claim 3, characterized in that, the connecting ribs, the body and the bearing chamber are an integrally formed structure.

5. The end cover according to claim 3, characterized in that, the height of the connecting rib in the first direction is less than or equal to the height of the bearing chamber in the first direction.

6. The end cover according to claim 3, characterized in that, the connecting rib has a first edge, a second edge and a third edge, the first edge extends along the bearing chamber, the second edge extends along the body, and the second edge and the third edge are connected in sequence; wherein, the included angle between the third edge and the surface of the side of the body where the bearing chamber is arranged is a first included angle, the first included angle is greater than or equal to 120 degrees and less than or equal to 160 degrees.

7. The end cover according to claim 6, characterized in that, the length L1 of the third edge in a second direction, the height H of the connecting rib in the first direction and the angle θ1 of the first included angle satisfy the following relationship: L1 = H×tan(π - θ1).

8. The end cover according to claim 3, characterized in that, the thickness of the connecting rib is greater than or equal to 2 millimeters.

9. The end cover according to any one of claims 1 to 8, characterized in that, the body is provided with a first groove, the first groove is arranged along the inner periphery of the bearing chamber, and the first groove is located at the connection between the body and the bearing chamber.

10. The end cover according to claim 9, characterized in that, the depth of the first groove in the first direction is a first depth, the first depth is greater than or equal to 0.3 millimeters and less than or equal to 0.6 millimeters; the width of the first groove in the second direction is greater than or equal to 2 times the first depth and less than or equal to 3 times the first depth.

11. An electric component, characterized in that, comprises the end cover according to any one of claims 1 to 10.

12. An electrical appliance, characterized in that, comprises the end cover according to any one of claims 1 to 10; or the electric component according to claim 11.

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