Motor device and electrically powered strut system

Abstract

The present disclosure provides a motor device and an electric supporting rod system. The motor device of the present disclosure comprises a motor body; a buffer, the buffer being made of flexible material, the buffer comprising a plurality of buffer protrusions, the buffer being clamped at a first end of the motor body based on the buffer protrusions, the first end of the motor body being an end where a motor output shaft is arranged; and a damper housing, the damper housing comprising a plurality of damper housing protrusions, the damper housing being wrapped by the buffer and completely embedded in the buffer, the damper housing protrusions being inserted into the buffer protrusions.

Description

Technical Field

[0001] This disclosure relates to the technical fields of motors, electric struts, etc., and in particular to a motor device and an electric strut system. Background Technology

[0002] Electric door struts (such as electric tailgate struts and electric side door struts) are an important component of intelligent vehicle entry and exit. They are driven by electricity to automatically close and open the doors, reducing manual operation.

[0003] Automotive electric struts use a motor and gearbox to provide high torque to the transmission device, while the lead screw and bushing convert rotation into linear motion. During operation, a rigid connection is often used to prevent rotation between the motor and its housing. Furthermore, the motor experiences axial and radial vibrations during strut compression and extension, resulting in significant noise and vibration during use. Utility Model Content

[0004] This disclosure provides a motor device and an electric strut system.

[0005] According to one aspect of this disclosure, an electric motor device is provided, comprising: Motor body; A buffer element, which is made of a flexible material, includes multiple buffer protrusions, and is snapped onto the first end of the motor body based on the buffer protrusions. The first end of the motor body is the end where the motor output shaft is configured. The damper housing includes multiple damper housing protrusions. The damper housing is wrapped around and completely embedded in the buffer member, and the damper housing protrusions are inserted into the protrusions of the buffer member.

[0006] According to at least one embodiment of the motor device of the present disclosure, the buffer protrusion and the damper housing protrusion have the same extending direction, which is parallel to the axial direction of the motor output shaft.

[0007] According to at least one embodiment of the motor device of the present disclosure, the first end portion forms a plurality of end grooves, and the buffer protrusion is inserted into the end grooves.

[0008] According to at least one embodiment of the motor device of the present disclosure, the buffer includes a receiving cavity, and the damper housing is disposed within the receiving cavity to be enclosed by the buffer.

[0009] According to at least one embodiment of the motor device of the present disclosure, a plurality of inner bosses are formed on the inner wall of the buffer member, and a plurality of outer wall grooves are formed on the outer wall of the damper housing, wherein the inner bosses are embedded in the outer wall grooves.

[0010] According to at least one embodiment of the motor device of the present disclosure, the buffer rib includes an opening, and the damper housing rib is inserted into the opening such that the damper housing rib is inserted into the buffer rib.

[0011] According to at least one embodiment of the motor device of the present disclosure, the inner boss and the buffer rib are staggered in the circumferential direction of the buffer. The projections of the inner boss and the buffer protrusion on the plane containing the central axis of the buffer do not overlap.

[0012] According to at least one embodiment of the motor device of the present disclosure, the buffer ribs are formed on the inner wall of the buffer.

[0013] According to at least one embodiment of the motor device of the present disclosure, the outer wall groove and the damper housing protrusion are staggered in the circumferential direction of the damper housing. The projections of the outer wall groove and the damper housing protrusion on the plane containing the central axis of the damper housing do not overlap.

[0014] According to at least one embodiment of the motor device of the present disclosure, the damper housing ribs are formed on the first end face of the damper housing.

[0015] According to at least one embodiment of the motor device of the present disclosure, the motor device further includes: The motor housing encloses the motor body, the buffer component, and the damper housing.

[0016] According to another aspect of this disclosure, an electric strut system is provided, comprising: Support pole; This disclosure provides a motor device according to any embodiment, the motor device being used to drive the support rod. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the structure of an electric motor device 100 according to one embodiment of the present disclosure.

[0019] Figure 2 This is an axial cross-sectional view of the motor housing 104 according to one embodiment of the present disclosure.

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the motor device 100 after removing the motor housing 104.

[0021] Figure 4 yes Figure 3 The diagram shown is a schematic of the structure after removing the buffer 102.

[0022] Figure 5 and Figure 6 A schematic diagram of the structure of a buffer according to one embodiment of the present disclosure is shown from different perspectives.

[0023] Figure 7 and Figure 8 A structural schematic diagram of a damper housing according to one embodiment of the present disclosure is shown from different perspectives.

[0024] Figure 9 This is a schematic diagram of the structure of the motor body 101 according to one embodiment of the present disclosure. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Figure 1 This is a schematic diagram of the structure of an electric motor device 100 according to one embodiment of the present disclosure.

[0033] Figure 2 This is an axial cross-sectional view of the motor housing 104 according to one embodiment of the present disclosure.

[0034] Figure 3 yes Figure 1 A schematic diagram of the structure of the motor device 100 after removing the motor housing 104.

[0035] Figure 4 yes Figure 3 The diagram shown is a schematic of the structure after removing the buffer 102.

[0036] refer to Figures 1 to 4 The electric motor device 100 disclosed herein includes: Motor body 101; A buffer 102, made of flexible material, includes multiple buffer protrusions 1021. The buffer 102 is snapped onto the first end of the motor body 101 based on these protrusions. The first end of the motor body 101 is the end where a motor output shaft (not shown) is located (i.e.,...). Figure 3 and Figure 4 (the right end of the middle). The damper housing 103 includes a plurality of damper housing protrusions 1031. The damper housing 103 is wrapped by and completely embedded in the buffer member 102. The damper housing protrusions 1031 are inserted into the buffer member protrusions 1021.

[0037] The motor body 101 may include a motor output shaft (not shown), and the output rotational motion of the motor body 101 via the motor output shaft is prior art. The buffer 102 may be made of a flexible material such as rubber, and this disclosure does not impose any particular limitation on it. The damper housing 103 is the housing of the damper, and the damper and damper housing can be referred to the relevant description in the applicant's prior patent application CN202022262335.4, which will not be repeated here.

[0038] The motor device 100 disclosed herein has a structure designed for the buffer 102 and the damper housing 103, such that the buffer 102 can alleviate the vibration of the motor body while minimizing the space occupied by the buffer and the damper housing.

[0039] By engaging the buffer protrusion 1021 (which can also be described as a buffer protrusion) with the first end of the motor body 101, relative rotation between the buffer 102 and the motor body 101 can be avoided.

[0040] By inserting the damper housing protrusion 1031 (which can also be described as a damper housing protrusion) into the buffer protrusion 1021, relative rotation between the buffer 102 and the damper housing 103 can be avoided.

[0041] Figure 5 and Figure 6 A schematic diagram of the structure of a buffer according to one embodiment of the present disclosure is shown from different perspectives.

[0042] Figure 7 and Figure 8 A structural schematic diagram of a damper housing according to one embodiment of the present disclosure is shown from different perspectives.

[0043] refer to Figures 3 to 8 The buffer 102 can be cylindrical, and the damper housing 103 can be cylindrical.

[0044] The number of the buffer protrusion 1021 and the damper housing protrusion 1031 is the same. Those skilled in the art, under the guidance of the technical solution of this disclosure, can make appropriate adjustments to the shape and the number of both, both of which fall within the protection scope of this disclosure.

[0045] refer to Figure 5 and Figure 6 In some embodiments, the shape of the buffer rib 1021 is cylindrical; see reference. Figure 7 and Figure 8 In some embodiments, the shape of the damper housing protrusion 1031 is cylindrical.

[0046] refer to Figures 3 to 8In a preferred embodiment of this disclosure, the buffer protrusion 1021 and the damper housing protrusion 1031 have the same extending direction, which is parallel to the axial direction of the motor output shaft.

[0047] Figure 9 This is a schematic diagram of the structure of the motor body 101 according to one embodiment of the present disclosure.

[0048] refer to Figure 9 In some embodiments of this disclosure, a plurality of end grooves 1011 are formed at the first end of the motor body 101. Figure 9 The example shows four end grooves 1011, into which the buffer protrusion 1021 can be inserted.

[0049] The end groove 1011 and the buffer protrusion 1021 have matching shapes, and the two can fit together tightly.

[0050] Those skilled in the art, inspired by the technical solutions disclosed herein, can make appropriate adjustments to the number of end grooves at the first end of the motor body 101, all of which fall within the protection scope of this disclosure.

[0051] refer to Figure 3 , Figure 5 and Figure 6 In some embodiments of this disclosure, preferably, the buffer 102 includes a receiving cavity (i.e., a hollow receiving cavity), and the damper housing 103 is disposed within the receiving cavity to be enclosed by the buffer 102.

[0052] refer to Figures 5 to 8 In a preferred embodiment of this disclosure, a plurality of inner bosses 1022 (e.g., four) are formed on the inner wall of the buffer member 102, and a plurality of outer wall grooves 1032 (e.g., four) are formed on the outer wall of the damper housing 103, with the inner bosses 1022 embedded within the outer wall grooves 1032.

[0053] The number of inner bosses 1022 is the same as the number of outer wall grooves 1032, and the two have matching shapes.

[0054] Those skilled in the art, inspired by the technical solutions disclosed herein, can adjust the number and shape of the inner boss and the outer wall groove, as long as the inner boss can be embedded in the outer wall groove and the two fit together tightly, further preventing relative rotation between the buffer 102 and the damper housing 103, all of which fall within the protection scope of this disclosure.

[0055] refer to Figure 6 ( Figure 6 From Figure 5(Structural schematic diagram when viewed from the right end) In a preferred embodiment of this disclosure, the buffer rib 1021 includes an opening 1023 (with the same shape as the damper housing rib 1031), and the damper housing rib 1031 is inserted into the opening 1023 so that the damper housing rib 1031 is inserted into the buffer rib 1021.

[0056] In a preferred embodiment of this disclosure, an inner buffer ring 1025 is also formed on the inner wall of the buffer member 102, and the inner buffer ring 1025 is used to provide radial support for the motor body 101.

[0057] Preferably, refer to Figure 5 and Figure 6 The inner ring 1025 of the buffer provides axial support for the convex rib 1021 of the buffer.

[0058] In some embodiments of this disclosure, the damper housing 103 may be made of metal or plastic.

[0059] Continue to refer to Figure 5 and Figure 6 The inner boss 1022 described above and the buffer rib 1021 are staggered in the circumferential direction of the buffer 102.

[0060] More preferably, the projections of the inner boss 1022 and the buffer rib 1021 on the plane containing the central axis of the buffer 102 do not overlap.

[0061] Based on the above structural design, a tight fit between the buffer 102 and the damper housing 103 can be achieved, which can better prevent relative rotation between the buffer and the damper housing.

[0062] In a preferred embodiment of this disclosure, reference is made to Figure 5 The buffer rib 1021 is formed on the inner wall of the buffer 102. Preferably, the buffer rib 1021 does not extend from the first end of the buffer ( Figure 5 The left end of the first end (the end facing the motor body 101) protrudes along the axial direction of the buffer.

[0063] refer to Figure 7 and Figure 8 ( Figure 8 From Figure 7 (Structural schematic diagram when viewed from the right end) In a preferred embodiment of this disclosure, the outer wall groove 1032 of the damper housing 103 and the damper housing protrusion 1031 are staggered in the circumferential direction of the damper housing 103.

[0064] More preferably, the projections of the outer wall groove 1032 and the damper housing protrusion 1031 onto the plane containing the central axis of the damper housing 103 do not overlap.

[0065] Based on the above structural design, a tight fit between the buffer 102 and the damper housing 103 can be achieved, which can better prevent relative rotation between the buffer and the damper housing.

[0066] Continue to refer to Figure 7 Preferably, the damper housing protrusion 1031 is formed on the first end face of the damper housing 103, which is the end face facing the motor body 101.

[0067] For the motor device 100 in the above embodiments, the motor housing 104 encloses the motor body 101, the buffer 102 and the damper housing 103.

[0068] Continue to refer to Figure 2 In some embodiments of this disclosure, a top protrusion 1041, an inner protrusion 1042, and a tail protrusion 1043 are formed on the inner wall of the motor housing 104.

[0069] The top protruding ring 1041 is circular and can make close contact with the outer wall of the buffer 102 to achieve stable holding of the buffer.

[0070] refer to Figure 5 and Figure 6 In some embodiments of this disclosure, a plurality of outer wall grooves 1024 are formed on the outer wall of the buffer member 102, and the outer wall grooves 1024 of the buffer member are formed by forming inner bosses 1022 on the inner wall of the buffer member 102.

[0071] In some embodiments, the number of bosses 1042 inside the housing is the same as the number of grooves 1024 on the outer wall of the buffer. When assembling the motor device 100, the bosses 1042 inside the housing are embedded within the grooves 1024 on the outer wall of the buffer to prevent relative rotation between the buffer 102 and the motor housing 104. In the motor device of this disclosure, the damper housing is embedded in the buffer, the damper housing protrusion is inserted into the buffer protrusion (the opening of the buffer protrusion), and the outer wall groove of the damper housing engages with the inner boss of the buffer, thereby ensuring a secure connection between the damper housing and the buffer.

[0072] The buffer protrusion engages with the end groove at the first end of the motor body to prevent the motor from rotating, and the inner ring of the buffer surrounds the motor body to reduce the radial vibration of the motor.

[0073] The first end of the buffer abuts against the top of the motor body (reference). Figure 3The outer wall groove of the buffer component engages with the inner boss of the motor housing, which prevents the motor from rotating while reducing the axial vibration of the motor.

[0074] This disclosure also provides an electric strut system, which may include: A strut (not shown), and a motor device 100 according to any embodiment of the present disclosure, the motor device 100 being used to drive the strut so that the strut can extend or retract.

[0075] The strut can be in the form of a telescopic strut, and the structure of the strut can adopt existing struts (such as car tailgate struts), which are not particularly limited in this disclosure.

[0076] The motor device 100 can transmit driving action to the strut via a transmission mechanism (which can be any existing transmission mechanism), all of which are prior art and will not be described in detail here.

[0077] 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.

[0078] 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.

[0079] 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 motor device, characterized in that, include: Motor body; A buffer element, which is made of a flexible material, includes multiple buffer protrusions, and is snapped onto the first end of the motor body based on the buffer protrusions. The first end of the motor body is the end where the motor output shaft is configured. A damper housing, the damper housing including a plurality of damper housing protrusions, the damper housing being wrapped by and completely embedded in the buffer member, the damper housing protrusions being inserted into the protrusions of the buffer member; The buffer includes a receiving cavity, and the damper housing is disposed within the receiving cavity to be enclosed by the buffer. The inner wall of the buffer is formed with multiple inner bosses, and the outer wall of the damper housing is formed with multiple outer wall grooves, and the inner bosses are embedded in the outer wall grooves. The inner boss and the buffer protrusion are staggered in the circumferential direction of the buffer. The projections of the inner boss and the buffer protrusion on the plane containing the central axis of the buffer do not overlap. The inner wall of the buffer is also formed with an inner ring, which is used to provide radial support for the motor body and axial support for the buffer protrusions. The buffer protrusion includes an opening, and the damper housing protrusion is inserted into the opening such that the damper housing protrusion is inserted into the buffer protrusion. The outer wall groove and the damper housing protrusion are staggered in the circumferential direction of the damper housing; the projections of the outer wall groove and the damper housing protrusion on the plane containing the central axis of the damper housing do not overlap.

2. The motor device according to claim 1, characterized in that, The buffer protrusion and the damper housing protrusion have the same extending direction, which is parallel to the axial direction of the motor output shaft.

3. The motor device according to claim 1, characterized in that, The first end has multiple end grooves, and the buffer protrusions are inserted into the end grooves.

4. The motor device according to claim 1, characterized in that, The ribs of the buffer are formed on the inner wall of the buffer.

5. The motor device according to claim 1, characterized in that, The damper housing ribs are formed on the first end face of the damper housing.

6. The motor device according to claim 1, characterized in that, The motor device further includes: a motor housing, which encloses the motor body, the buffer component, and the damper housing.

7. An electric strut system, characterized in that, include: Support pole; as well as The motor device according to any one of claims 1 to 6, wherein the motor device is used to drive the strut.

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