Brushless motor, driving device and automobile

Abstract

The utility model provides a brushless motor, a driving device and an automobile. The brushless motor comprises a stator core, a coil and a control panel, and further comprises a motor terminal, the motor terminal is electrically connected with the end part of the coil, and the motor terminal comprises a motor terminal combination part; the motor terminal holding bracket is used for holding a motor terminal, and the motor terminal fixing bracket is arranged on the stator iron core; the control panel terminal comprises a control panel terminal combination part and a control panel terminal fixing part, and the control panel terminal is fixed on the control panel through the control panel terminal fixing part; and the motor terminal combination part is detachably connected with the control panel terminal combination part, so that the motor terminal is detachably and electrically connected with the control panel terminal.

Description

Technical Field

[0001] This disclosure relates to the technical field of brushless motors, and more particularly to a brushless motor, a drive device, and an automobile. Background Technology

[0002] Brushless motors are commonly used drive mechanisms in electric door systems, such as electric sliding door systems.

[0003] For ease of installation and cost savings, the brushless motor control board and motor body are typically integrated into a single design. This requires connecting the brushless motor coil to the control board, as shown in the structure disclosed in Chinese Patent CN201710821622.4 (see Figure 10 of that patent). In this design, the first connection terminal of the brushless motor coil passes directly through a via on the circuit board (i.e., the control board) and is connected to the circuit board via soldering. The main problem with this design is the need for soldering during the assembly of the circuit board and the brushless motor body, resulting in high equipment investment and complex processes. Furthermore, once the soldering is completed, the circuit board and motor body cannot be disassembled, making it impossible to replace either the motor body or the circuit board separately, leading to high maintenance costs. Utility Model Content

[0004] According to one aspect of this disclosure, a brushless motor is provided, comprising a stator core, coils, and a control board, the brushless motor further comprising:

[0005] A motor terminal, which is electrically connected to the end of the coil, and the motor terminal includes a motor terminal joint portion;

[0006] A motor terminal retaining bracket is used to retain the motor terminal, and the motor terminal fixing bracket is disposed on the stator core;

[0007] A control board terminal, the control board terminal including a control board terminal connecting part and a control board terminal fixing part, the control board terminal being fixed to the control board via the control board terminal fixing part;

[0008] The motor terminal connection portion is detachably connected to the control board terminal connection portion, so that the motor terminal and the control board terminal are detachably electrically connected.

[0009] According to any embodiment of the brushless motor of this disclosure, the motor terminals further include:

[0010] A motor terminal fixing part, wherein the motor terminal is fixed to the motor terminal fixing bracket via the motor terminal fixing part;

[0011] A coil connection part is electrically connected to the end of the coil.

[0012] According to any embodiment of the brushless motor disclosed herein, the coil connection portion is a semi-enclosed structure, wherein the semi-enclosed structure forms a semi-enclosed shape around the end of the coil.

[0013] According to any embodiment of the present disclosure, the brushless motor terminal joint and the control board terminal joint are detachably connected by a plug-in method.

[0014] According to any embodiment of the brushless motor of the present disclosure, the motor terminal connection portion includes:

[0015] The control board terminal joint can be inserted into the fully enclosed structure;

[0016] An elastomer having an elastic force, the elastomer pressing against the control board terminal joint inserted into the fully enclosed structure based on the elastic force.

[0017] According to any embodiment of the brushless motor of the present disclosure, the elastomer is at least partially located within the fully enclosed structure.

[0018] According to any embodiment of the brushless motor disclosed herein, the fully enclosed structure and the elastomer are an integral structure.

[0019] According to any embodiment of the brushless motor of the present disclosure, the motor terminal retaining bracket includes a terminal retaining structure, the terminal retaining structure comprising:

[0020] A retaining slot for retaining the motor terminal;

[0021] A clamping part is used to clamp the coil connection part of the motor terminal to the end of the coil, so that the coil connection part is electrically connected to the end of the coil.

[0022] According to any embodiment of the brushless motor of the present disclosure, the motor terminal retaining bracket further includes:

[0023] The bracket body is located at the first end of the stator core, and the terminal holding structure is located on the side of the stator core. The first end is the end of the stator core facing the control board.

[0024] According to any embodiment of the brushless motor disclosed herein, the bracket body and the terminal retaining structure are an integral structure.

[0025] According to any embodiment of the present disclosure, in a brushless motor, the motor terminal fixing part is engaged with the terminal retaining structure of the motor terminal fixing bracket to fix the motor terminal to the motor terminal fixing bracket.

[0026] According to any embodiment of the brushless motor disclosed herein, the brushless motor further includes:

[0027] A coil support is disposed at the second end of the stator core, the second end being the end of the stator core facing away from the control board;

[0028] The coil is at least partially wound around the coil support.

[0029] According to another aspect of this disclosure, a drive device is provided, the drive device comprising a brushless motor according to any embodiment of this disclosure.

[0030] According to another aspect of this disclosure, an automobile is provided, comprising: a drive device according to any embodiment of this disclosure, the drive device being used to drive at least one of the automobile's doors, hood, and rear cover. Attached Figure Description

[0031] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0032] Figure 1 This is a schematic diagram of the structure of a brushless motor according to one embodiment of the present disclosure.

[0033] Figure 2 This is a schematic diagram of the structure of the control board and control board terminals according to one embodiment of the present disclosure.

[0034] Figure 3 A motor terminal of one embodiment is shown from one perspective.

[0035] Figure 4 The motor terminals of one embodiment are shown from another perspective.

[0036] Figure 5 This is a schematic diagram of the structure of a motor terminal fixing bracket according to one embodiment of the present disclosure.

[0037] Figure 6 The cross-sectional view shows the connection between the control board terminals and the motor terminals.

[0038] Figure 7 The sectional view shows the fit between the control board terminals, motor terminals, and terminal retaining structure. Detailed Implementation

[0039] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0040] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0042] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0043] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0044] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0045] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0046] Figure 1 This is a schematic diagram of the structure of a brushless motor according to one embodiment of the present disclosure.

[0047] refer to Figure 1 In one embodiment of this disclosure, the brushless motor includes a stator core 10, a coil 20, and a control board 30. The brushless motor also includes:

[0048] Motor terminal 40 is electrically connected to the end of coil 20. Motor terminal 40 includes motor terminal joint 401.

[0049] Motor terminal retaining bracket 50 is used to retain motor terminal 40 and is disposed on stator core 10.

[0050] The control board terminal 60 includes a control board terminal connecting part 601 and a control board terminal fixing part 602. The control board terminal 60 is fixed to the control board 30 via the control board terminal fixing part 602.

[0051] The motor terminal joint 401 is detachably connected to the control board terminal joint 601, so that the motor terminal 40 and the control board terminal 60 are detachably electrically connected.

[0052] Figure 1 The illustration exemplarily shows three motor terminals 40, each of which can be electrically connected to one end of a coil. The brushless motor may include three coils (a three-phase brushless motor). The first ends of each coil can be connected together to form a common terminal (which can be grounded). The second end of each coil is electrically connected to a motor terminal 40. Furthermore, the specific winding of the coils on the stator core 10 is prior art and is not specifically limited in this disclosure.

[0053] This disclosure does not impose any particular limitation on the number of motor terminals 40 and coils 20. In general, one motor terminal 40 can be electrically connected to one end of one coil 20.

[0054] This disclosure designs the motor terminal junction 401 and the control board terminal junction 601 to be detachably connected, so that the control board 30 and the coil can form a complete electrical circuit, and realizes the detachable connection between the control board 30 (i.e., the circuit board) and the brushless motor body (including the stator core and the coil).

[0055] In order to reliably maintain and reliably disassemble the detachable connection between the motor terminal joint 401 and the control board terminal joint 601 (without causing damage to the motor terminal joint 401 during disassembly), this disclosure designs a motor terminal retaining bracket 50 to retain the motor terminal 40.

[0056] Figure 2 This is a schematic diagram of the structure of the control board 30 and the control board terminal 60 according to one embodiment of the present disclosure.

[0057] Figure 2 Three control board terminals 60 are shown as an example. Each control board terminal 60 has a control board terminal engagement portion 601 and a control board terminal fixing portion 602. The control board terminal 60 is fixed to the control board 30 via the control board terminal fixing portion 602.

[0058] In some embodiments, the control board terminal fixing part 602 and the control board terminal connecting part 601 can be an integral structure. The control board terminal fixing part 602 can be passed through the through hole on the control board 30, and then the control board terminal fixing part 602 and the control board 30 can be soldered together (or other soldering methods can be used) to form an electrical connection.

[0059] In other embodiments, the control board terminal fixing part 602 and the control board terminal connecting part 601 can be separate structures. They can be fixedly connected together by a threaded engagement. For example, the control board terminal fixing part 602 forms a threaded rod structure, and the control board terminal connecting part 601 forms a threaded hole structure. After the two are fixedly connected, the control board terminal fixing part 602 passes through the through hole on the control board 30, and then the control board terminal fixing part 602 and the control board 30 are soldered together (or other soldering methods can be used) to form an electrical connection.

[0060] In some implementations, such as Figure 2 As shown, each control board terminal 60 has a control board terminal coupling portion 601 and multiple (preferably two) control board terminal fixing portions 602, thereby forming a reliable electrical connection between the control board terminal 60 and the control board 30.

[0061] Any changes or adjustments made to the structure of the control board terminal 60 by those skilled in the art based on the technical solutions disclosed herein fall within the protection scope of this disclosure.

[0062] This disclosure does not impose any specific limitations on the specific circuit configuration of the control board 30.

[0063] Figure 3 A motor terminal of one embodiment is shown from one perspective. Figure 4 The motor terminals of one embodiment are shown from another perspective.

[0064] refer to Figure 3 and Figure 4 In a preferred embodiment of this disclosure, the motor terminal 40 includes a motor terminal connection portion 401 and a coil connection portion 403, wherein the coil connection portion 403 is electrically connected to the end of the coil 20. Those skilled in the art will understand that both the motor terminal connection portion 401 and the coil connection portion 403 are made of conductive materials.

[0065] refer to Figure 3 and Figure 4 Preferably, the coil connection portion 403 is a semi-enclosed structure, which forms a semi-enclosed shape around the end of the coil 20. Based on this structural design, the end of the coil 20 can be stably electrically connected to the coil connection portion 403, thus preventing the end of the coil 20 from detaching from the coil connection portion 403.

[0066] Based on the technical solutions disclosed herein, any adjustments or changes made by those skilled in the art to the specific form of the semi-enclosed structure of the coil connection part 403 shall fall within the protection scope of this disclosure.

[0067] In some embodiments of this disclosure, reference is made to Figure 4The motor terminal 40 also includes a motor terminal fixing part 402, and the motor terminal 40 is fixed to the motor terminal retaining bracket 50 via the motor terminal fixing part 402.

[0068] The motor terminal fixing part 402 can be made of insulating material or conductive material.

[0069] In some embodiments of this disclosure, reference is made to Figure 4 The motor terminal joint 401 has a hollow portion 4013, for reference. Figure 2 The control board terminal joint 601 is formed as a rod-shaped part, so that the motor terminal joint 401 and the control board terminal joint 601 are detachably connected by a plug-in method.

[0070] Those skilled in the art, inspired by the technical solutions disclosed herein, may modify or adjust the specific implementation of the detachable connection, all of which shall fall within the protection scope of this disclosure.

[0071] Continue to refer to Figure 3 and Figure 4 Preferably, the motor terminal connection portion 401 of this disclosure includes:

[0072] The fully enclosed structure 4011, the control board terminal joint 601 can be inserted into the fully enclosed structure 4011;

[0073] The elastomer 4012 has an elastic force, and the elastomer presses the control board terminal joint 601 inserted into the fully enclosed structure 4011 based on the elastic force.

[0074] The space enclosed by the fully enclosed structure 4011 is the hollow part 4013 described above.

[0075] The elastomer 4012 can be in the form of a spring sheet. Those skilled in the art, inspired by the technical solutions disclosed herein, can modify or adjust the specific form of the elastomer 4012, all of which fall within the protection scope of this disclosure.

[0076] Among them, the elastomer 4012 is preferably a conductive material.

[0077] like Figure 4 As shown, the elastomer 4012 described above in this disclosure is at least partially located within the fully enclosed structure 4011.

[0078] In some embodiments of this disclosure, the above-described fully enclosed structure 4011 and the elastomer 4012 are designed as an integral structure.

[0079] Figure 5 This is a schematic diagram of the structure of a motor terminal retaining bracket 50 according to one embodiment of the present disclosure.

[0080] refer to Figure 5 The motor terminal holding bracket 50 disclosed herein includes a terminal holding structure 501. Figure 5 The example shows three terminal holding structures 501, and the motor terminal fixing part 402 can be snapped into the terminal holding structure 501 of the motor terminal holding bracket 50 to fix the motor terminal 40 to the motor terminal holding bracket 50.

[0081] refer to Figure 5 and Figure 1 In some embodiments of this disclosure, the motor terminal retaining bracket 50 further includes:

[0082] The support body 502 is installed at the first end of the stator core 10 (e.g., Figure 1 (shown as the upper end), the terminal holding structure 501 is located on the side of the stator core 10, and the first end is the end of the stator core 10 facing the control board 30.

[0083] Based on the above structural design of the motor terminal retaining bracket 50, the motor terminal 40 can be stably held on the brushless motor, which can save layout space.

[0084] Preferably, the bracket body 502 and the terminal retaining structure 501 are an integral structure.

[0085] Any changes or adjustments made to the structure of the motor terminal retaining bracket 50 by those skilled in the art based on the technical solutions disclosed herein shall fall within the protection scope of this disclosure.

[0086] Continue to refer to Figure 5 In a preferred embodiment of this disclosure, the terminal holding structure 501 includes:

[0087] Retaining slot 5011, retaining slot 5011 is used to retain motor terminal 40;

[0088] The clamping part 5012 is used to clamp the coil connection part 403 of the motor terminal 40 to the end of the coil 20, so that the coil connection part 403 and the end of the coil 20 are electrically connected.

[0089] Based on the structural design of the terminal holding structure 501, the terminal holding structure 501 can stably maintain the end electrical connection between the coil connection part 403 and the coil 20, thereby enhancing reliability.

[0090] Figure 6 The cross-sectional view shows the connection between the control board terminals and the motor terminals.

[0091] like Figure 6As shown, the control board terminal joint 601 of the control board terminal 60 can be inserted into the fully enclosed structure 4011 of the motor terminal 40. The elastic body 4012 presses the control board terminal joint 601 inserted into the fully enclosed structure 4011 based on elastic force, thereby making the control board terminal and the electronic terminal stably electrically connected.

[0092] Figure 7 The sectional view shows the fit between the control board terminals, motor terminals, and terminal retaining structure.

[0093] refer to Figure 7 The terminal retaining structure 501 may also include a snap-fit ​​portion 5013, which may be in the form of a slot, for fixed connection (preferably snap-fit) with the motor terminal fixing portion 402.

[0094] Continue to refer to Figure 1 In some embodiments of this disclosure, the brushless motor further includes a coil support 70, which is disposed at the second end of the stator core 10. Figure 1 The lower end of the stator core 10 is the second end, which is the end of the stator core 10 facing away from (away from) the control plate 30; the coil 20 is at least partially wound around the coil support 70. Those skilled in the art will understand that the coil 20 is also wound around the stator core 10. Figure 3 The diagram shows a partial structure of the coil support.

[0095] Because the motor terminal joint 401 of the brushless motor 40 of this disclosure has an elastic body 4012, the control board terminal joint 601 of the control board terminal 60 and the motor terminal joint 401 are interference-fitted. When the control board terminal joint 601 is pressed into the motor terminal joint 401, the elastic body tightly presses the two together, so that the control board and the coil of the brushless motor form a complete electrical circuit. When it is necessary to separate the control board and the motor body, the control board terminal joint can be pulled out from the motor terminal joint, thereby enabling the control board and the motor body to be separated without damaging them.

[0096] Based on the brushless motor disclosed herein, this disclosure also provides a drive device, which includes the brushless motor of any embodiment of this disclosure.

[0097] This disclosure also provides an automobile, including: a drive device according to any embodiment of this disclosure, the drive device being used to drive at least one of the automobile's doors, front cover (hood), and rear cover (trunk cover or rear door).

[0098] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0100] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A brushless motor, comprising a stator core, coils, and a control board, characterized in that, The brushless motor also includes: A motor terminal, which is electrically connected to the end of the coil, and the motor terminal includes a motor terminal joint portion; A motor terminal retaining bracket, wherein the motor terminal retaining bracket is used to retain the motor terminal, and the motor terminal fixing bracket is disposed on the stator core; and A control board terminal, the control board terminal including a control board terminal connecting part and a control board terminal fixing part, the control board terminal being fixed to the control board via the control board terminal fixing part; The motor terminal connection portion is detachably connected to the control board terminal connection portion, so that the motor terminal and the control board terminal are detachably electrically connected.

2. The brushless motor according to claim 1, characterized in that, The motor terminals also include: Motor terminal fixing part, wherein the motor terminal is fixed to the motor terminal fixing bracket via the motor terminal fixing part; and A coil connection part is electrically connected to the end of the coil.

3. The brushless motor according to claim 2, characterized in that, The coil connection part has a semi-enclosed structure, which forms a semi-enclosed structure around the end of the coil.

4. The brushless motor according to claim 1, characterized in that, The motor terminal joint and the control board terminal joint are detachably connected by a plug-in method.

5. The brushless motor according to claim 1 or 4, characterized in that, The motor terminal connection includes: A fully enclosed structure, wherein the control board terminal joint can be inserted into the fully enclosed structure; and An elastomer having an elastic force, the elastomer pressing against the control board terminal joint inserted into the fully enclosed structure based on the elastic force.

6. The brushless motor according to claim 5, characterized in that, The elastomer is at least partially located within the fully enclosed structure.

7. The brushless motor according to claim 5, characterized in that, The fully enclosed structure and the elastomer are an integral structure.

8. The brushless motor according to claim 2, characterized in that, The motor terminal retaining bracket includes a terminal retaining structure, the terminal retaining structure comprising: A retaining slot for retaining the motor terminal; and A clamping part is used to clamp the coil connection part of the motor terminal to the end of the coil, so that the coil connection part is electrically connected to the end of the coil; Optionally, the motor terminal retaining bracket further includes: The bracket body is located at the first end of the stator core, and the terminal holding structure is located on the side of the stator core. The first end is the end of the stator core facing the control board. Optionally, the bracket body and the terminal retaining structure are an integral structure; Optionally, the motor terminal fixing part is engaged with the terminal retaining structure of the motor terminal fixing bracket to fix the motor terminal to the motor terminal fixing bracket; Optionally, the brushless motor further includes: A coil support is disposed at the second end of the stator core, the second end being the end of the stator core facing away from the control board; The coil is at least partially wound around the coil support.

9. A driving device, characterized in that, The drive device includes the brushless motor according to any one of claims 1 to 8.

10. A car, characterized in that, include: The drive device of claim 9, wherein the drive device is used to drive at least one of the doors, hood, and rear cover of an automobile.

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