Motor and electrical product

Abstract

The embodiment of the invention provides a motor and an electrical product, and the motor comprises a rotor which is provided with a rotating shaft which rotates with a central axis as the center; a stator facing the rotor in the radial direction; a housing accommodating the rotor and the stator; and a connector which is inserted into the housing and fixed, and which is connected to the bus bar in the radial direction. The connector is provided with at least two supporting parts, the at least two supporting parts are located on the two sides of the connector respectively, and the supporting parts are fixedly connected with the side wall and the bottom face of the machine shell respectively in the axial direction. Therefore, the supporting part supports and fixes the connector from the side face, and the situation that the connector is inclined inwards due to the fact that the connector is stressed by the bus bar towards the radial inner side can be prevented.

Description

Technical Field

[0001] The present application relates to the field of electromechanical engineering, and in particular to a motor and electrical products. Background Art

[0002] In order to achieve the connection between the motor and external electronic components, a connector is usually inserted into the housing to connect the bus bar inside the motor housing with various external electronic components through the connector.

[0003] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art. Summary of the Invention

[0004] The inventors discovered that in the prior art, to secure the connector to the motor housing, a support portion is provided at the bottom of the connector. This support portion and the housing are interferingly fitted to maintain the connector in position, and the connector and busbar are connected via radial clamping welding. However, after welding, the busbar exerts radial pulling force on the connector, causing the connector to tilt radially inward, resulting in reduced connector stability.

[0005] In response to the above problems, an embodiment of the present application provides a motor and an electrical product. Through the motor provided by the embodiment of the present application, the support portion supports and fixes the connector from the side, which can prevent the connector from being subjected to radial inward force from the bus bar, thereby causing the connector to tilt inward.

[0006] According to a first aspect of an embodiment of the present application, a motor is provided, comprising:

[0007] a rotor having a rotation shaft that rotates about a central axis;

[0008] a stator, which is radially opposite to the rotor;

[0009] a casing accommodating the rotor and the stator; and

[0010] A connector, which is inserted into the housing and fixed thereto and connected to the busbar in a radial direction;

[0011] The connector has at least two supporting parts, which are respectively located on both sides of the connector, and the supporting parts are respectively connected and fixed to the side wall and the bottom surface of the housing in the axial direction.

[0012] According to a second aspect of the embodiment of the present application, the support portion is located radially outside the side wall of the connector.

[0013] According to a third aspect of the embodiment of the present application, the length of the support portion in the axial direction is greater than or equal to the length of the side wall of the casing.

[0014] According to a fourth aspect of the embodiment of the present application, one end of the support portion in the axial direction is parallel to or higher than the side wall of the housing, and the other end extends toward the bottom surface of the housing and protrudes from the bottom of the connector.

[0015] According to a fifth aspect of the embodiment of the present application, the diameter of the support portion is greater than 20% of the length of the plane where the support portion is located.

[0016] According to a sixth aspect of the embodiment of the present application, the cross-sectional shape of the portion of the support portion inserted into the bottom surface of the casing is semicircular.

[0017] According to a seventh aspect of the embodiment of the present application, the circumferential outer surface of the support portion has at least one rib.

[0018] According to an eighth aspect of the embodiment of the present application, the bottom of the connector also has a bottom support portion, and the bottom support portion and the support portions located on both sides of the connector are not on the same straight line.

[0019] According to a ninth aspect of the embodiment of the present application, the support portion and the connector are integrally formed.

[0020] According to a tenth aspect of an embodiment of the present application, an electrical product is provided, comprising the motor described in any one of the first to ninth aspects above.

[0021] One of the beneficial effects of the embodiments of the present application is that: through the motor provided by the embodiments of the present application, the support portion can support and fix the connector from the side, thereby preventing the connector from being subjected to the radially inward force of the bus bar, which causes the connector to tilt inward, thereby improving the stability of the connector.

[0022] With reference to the following description and drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope thereby. Within the scope of the terms of the appended claims, the embodiments of the present application include many variations, modifications, and equivalents.

[0023] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0024] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0026] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0027] Figure 1 is a cross-sectional view of a motor provided in an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of a connector of a motor provided in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of a motor housing provided by an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of a motor connector provided in an embodiment of the present application being inserted into a housing;

[0031] Figure 5 is another schematic diagram of the motor connector provided by an embodiment of the present application being inserted into the housing;

[0032] Figure 6 is a cross-sectional view of a connector of a motor provided in an embodiment of the present application;

[0033] Figure 7 is another schematic diagram of a connector of a motor provided in an embodiment of the present application;

[0034] Figure 8 This is another schematic diagram of the connector of the motor provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The foregoing and other features of the present application will become apparent from the following description with reference to the accompanying drawings. In the description and drawings, specific embodiments of the present application are disclosed, which illustrate some embodiments in which the principles of the present application can be employed. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations, and equivalents falling within the scope of the appended claims. Various embodiments of the present application are described below with reference to the accompanying drawings. These embodiments are merely illustrative and are not intended to limit the present application.

[0036] In the embodiments of the present application, the terms "first", "second", "upper", "lower", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or time order of these elements, etc. These elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0037] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0038] In addition, in the following description of the embodiments of the present application, for convenience of explanation, the direction extending along or parallel to the central axis of the motor is referred to as the "axial direction," the radial direction centered on the central axis is referred to as the "radial direction," the direction around the central axis is referred to as the "circumferential direction," the side radially away from the central axis is referred to as the "radially outer side," the side radially closer to the central axis is referred to as the "radially inner side," the direction from the bottom of the motor housing toward the opening is referred to as "up," "axially upward," "upper side," or "axially upper side," and the direction from the opening of the motor housing toward the bottom of the motor housing is referred to as "down," "axially downward," "lower side," or "axially lower side." However, it should be noted that these are merely for convenience of explanation and do not limit the orientation of the motor during use or manufacture.

[0039] The embodiments of the present application are described below with reference to the accompanying drawings.

[0040] The embodiment of the present application provides a motor 100, Figure 1 is a cross-sectional view of the motor 100 provided in an embodiment of the present application, as shown in FIG. Figure 1As shown, the motor 100 includes a rotor 11 , a stator 12 , and a housing 13 . The rotor 11 has a rotating shaft 14 that rotates about a central axis X. The stator 12 is radially opposed to the rotor 11 , and both the rotor 11 and the stator 12 are housed in the housing 13 .

[0041] In addition, if Figure 1 As shown, the motor 100 further includes a connector 10 , which is inserted into and fixed to the housing 13 and connected to the bus bar 15 in the radial direction.

[0042] Figure 2 1 is a schematic diagram of the connector 10 of the motor 100 provided in an embodiment of the present application; Figure 1 and Figure 2 As shown, the connector 10 has at least two supporting portions 101 , which are respectively located on both sides of the connector 10 and are respectively connected and fixed to the side wall and the bottom surface of the housing 13 in the axial direction.

[0043] Through the above structure, even if the busbar 15 generates radial pulling force on the connector 10, since the support part 101 supports and fixes the connector 10 from the side and a part of the support part 101 is inserted into the bottom of the casing to increase the length of the support part 101, the connector 10 can be prevented from being subjected to the radial inward force of the busbar 15, thereby preventing the connector 10 from tilting inward, thereby improving the stability of the connector 10.

[0044] like Figure 2 As shown, the connector 10 further comprises a main body 102 , a step portion 103 , and an extension portion 104 . The support portion 101 is fixed on both sides of the main body 102 in the AA′ direction, ie, radially outward of the side wall of the connector 10 , and extends toward the bottom surface of the connector 10 .

[0045] Therefore, the torque can be increased by increasing the length of the lever arm, thereby preventing the connector 10 from tilting inwards due to radial tension.

[0046] In some embodiments, the step portion 103 is located on the same side of the support portion 101 in the BB' direction and extends in a direction opposite to the support portion 101. The extension portion 104 is located at the end of the step portion 103, close to the B direction, and continues to extend in a direction opposite to the support portion 101. A through hole H is provided on the step portion 103, and a groove T is provided on the extension portion 104, which is positioned to mate with the through hole H. Both the through hole H and the groove T are used to allow the bus bar 15 to pass through when the connector 10 is inserted into the housing 13 and secured thereto. The specific method will be described later.

[0047] In some embodiments, the support portion 101 and the connector 10 are integrally formed, thereby increasing the strength with which the support portion 101 fixes the connector 10 and improving the stability of the connector 10 .

[0048] Figure 3 1 is a schematic diagram of the housing 13 of the motor 100 provided in an embodiment of the present application; Figure 3 As shown, the connector 10 is inserted into the housing 13 at position S and fixed thereto, and the housing 13 has a reserved hole 131 and a recessed portion 132. The support portion 101 is fixed to the housing 13 by being inserted into the reserved hole 131.

[0049] In the above embodiment, the reserved hole 131 is a cylindrical through hole, and its diameter is equal to or slightly larger than the diameter of the supporting portion 101 .

[0050] Specifically, in the above embodiment, the connector 10 can be fixed to the housing 13 by interference fit, or the support portion 101 can also be fixedly connected to the housing 13 by snap-fitting, which is not limited in the present application.

[0051] Figure 4 1 is a schematic diagram of the connector 10 of the motor 100 provided in an embodiment of the present application being inserted into the housing 13; Figure 5 FIG. 1 is another schematic diagram of the connector 10 of the motor 100 provided in an embodiment of the present application being inserted into the housing 13; FIG. Figure 4 and Figure 5 As shown, after the support portion 101 is inserted into the reserved hole 131 , the connector 10 is fixed on the housing 13 .

[0052] At this point, busbar 15-a inside housing 13 can pass through the interior of connector body 102 and through through-hole H provided at the top of step 103, where it is retained in groove T of extension 104. Connector 10 and busbar 15 are connected by clamping and welding. This allows a portion of busbar 15-b to be connected to an external electrical component. The above description of the relationship between connector 10 and busbar 15 is merely illustrative, but not limiting. For example, the busbar and connector can also be integrally formed.

[0053] Figure 6 is a cross-sectional view of the connector 10 of the motor 100 provided in an embodiment of the present application; Figure 6 As shown, Figure 6 The portion L2 in the figure shows the axial length of the side wall of the housing 13. In some embodiments, when the connector 10 is inserted into the housing 13, a portion of the support portion 101 is connected and fixed to the side wall of the housing 13, and another portion of the support portion 101 is further inserted into the housing 13 and extends into the interior thereof and then connected and fixed to the bottom surface of the housing 13. Figure 6As shown, the length L1 of the support portion 101 is greater than or equal to the length L2 of the side wall of the housing 13. This can enhance the pulling force of the support portion 101, so that the connector 10 is not easily affected by the radial force of the busbar 15 and tilted inward.

[0054] In the above embodiment, after the connector 10 is completely inserted into the housing 13, one end of the support portion 101 in the axial direction ( Figure 6 The upper end shown in FIG10 is parallel to or higher than the upper end of the side wall of the housing 13, and the other end extends toward the bottom surface of the housing 13 and protrudes from the bottom of the connector 101.

[0055] Figure 6 An embodiment is shown in which one axial end of the support portion 101 is parallel to the side wall of the housing 13. At this time, one axial end of the support portion 101 and the side wall of the housing 13 are both located at the position indicated by H1, and the other end extends toward the bottom surface and protrudes from the bottom of the connector 101. The bottom of the connector 101 is located at the position indicated by H2.

[0056] Figure 7 is another schematic diagram of the connector 10 of the motor 100 provided in an embodiment of the present application; Figure 7 As shown, in some embodiments, the diameter d1 of the support portion 101 is less than the length d2 of the plane in which the support portion 101 is located (the radial length of the main body 102), and d1 is greater than a predetermined value or ratio. For example, the diameter of the support portion can be 20% of the sidewall length of the main body 102, that is, d1>d2*20%. The above description uses 20% as an example, but the present application is not limited to this. For example, the diameter d1 of the support portion 101 can be a predetermined value or other ratio. In this way, the support portion 101 can be prevented from being too thin and easily broken, and the support portion 101 can be prevented from being too thick and affecting installation.

[0057] In some embodiments, as Figure 7 As shown, the circumferential outer surface of the support portion 101 further has at least one rib 1011 .

[0058] In the above embodiment, the rib 1011 can be a protrusion extending outward from the circumferential outer surface of the support portion 101. After the support portion 101 is inserted into the housing 13, the rib 1011 can achieve a better interference fit between the support portion 101 and the housing 13, thereby improving the stability of the connector 10.

[0059] In the above embodiment, Figure 7 The support portion 101 is shown to have a structure with three ribs 1011 , but the present application is not limited thereto, and the number of the ribs 1011 can be adjusted as needed according to actual conditions.

[0060] Figure 8is another schematic diagram of the connector 10 of the motor 100 provided in an embodiment of the present application; Figure 8 As shown, in some embodiments, the cross-sectional shape of the portion of the support portion 101 inserted into the bottom surface of the housing 13 is semicircular. This configuration makes it easier for the support portion 101 to be inserted into the housing 13, and the semicircular shape provides better stability, thereby enabling the connector 10 to be more stably fixed to the housing 13.

[0061] In some embodiments, the cross-sectional shape of the support portion 101 may also be a D-shaped semicircle, which is not limited in this application.

[0062] In some embodiments, as Figure 8 As shown, the bottom of the connector 10 also has a bottom support portion 1012. The bottom support portion 1012 and the support portions 101 located on both sides of the connector 10 are not on the same straight line. That is, the bottom support portion 1012 and the support portion 101 form a triangular support on the bottom surface of the connector 10, thereby making the connector 10 more stable.

[0063] The above only describes the structure of the motor related to the present application. For other structures of the motor, please refer to the relevant technology and will not be repeated here.

[0064] With the motor provided in the embodiment of the present application, the support portion can support and fix the connector from the side, thereby preventing the connector from being subjected to radially inward force from the bus bar, which would cause the connector to tilt inward, thereby improving the stability of the connector.

[0065] The present application also provides an electrical product having the motor 100 described in the above embodiment. Since the structure of the motor 100 has been described in detail in the above embodiment, its content is incorporated herein and the description is omitted here.

[0066] In the implementation of this application, the electrical product may be any electrical device provided with a motor, for example, a vehicle-mounted motor.

[0067] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0068] The preferred embodiments of the present application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and it is intended that the appended claims cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, the embodiments of the present application are not intended to be limited to the precise construction and operation illustrated and described, but are intended to cover all suitable modifications and equivalents that fall within the scope thereof.

Claims

1. A motor, comprising: a rotor having a rotation shaft that rotates about a central axis; a stator, which is radially opposite to the rotor; a casing accommodating the rotor and the stator; and A connector, which is inserted into the housing and fixed thereto and connected to the busbar in a radial direction; It is characterized in that the connector has at least two supporting parts, the at least two supporting parts are respectively located on both sides of the connector, and the supporting parts are respectively connected and fixed to the side wall and the bottom surface of the housing in the axial direction.

2. The motor according to claim 1, wherein The supporting portion is located radially outside the side wall of the connector.

3. The motor according to claim 1, wherein The length of the support portion in the axial direction is greater than or equal to the length of the side wall of the housing.

4. The motor according to claim 3, characterized in that One end of the support portion in the axial direction is parallel to or higher than the side wall of the housing, and the other end extends toward the bottom surface of the housing and protrudes from the bottom of the connector.

5. The motor according to claim 1, wherein The diameter of the support portion is greater than 20% of the length of the plane where the support portion is located.

6. The motor according to claim 1, wherein The cross-section of the portion of the support portion inserted into the bottom surface of the housing is semicircular.

7. The motor according to claim 1, wherein The circumferential outer surface of the support portion has at least one rib.

8. The motor according to claim 1, wherein The bottom of the connector also has a bottom supporting portion, and the bottom supporting portion and the supporting portions located on both sides of the connector are not on the same straight line.

9. The motor according to claim 1, wherein The supporting portion and the connector are integrally formed.

10. An electrical product, characterized in that: The electric product comprises the motor according to any one of claims 1 to 9.

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