Axial limiting structure of driving motor

Abstract

The embodiment of the utility model discloses an axial limiting structure of a driving motor, which comprises a mounting shell, a driving motor and a driving motor, the driving motor is mounted in the mounting groove; the limiting piece is mounted between the axial end part of the driving motor and the mounting shell; wherein one side of the limiting piece abuts against the driving motor, and the other side of the limiting piece abuts against the mounting shell, so that the axial degree of freedom of the driving motor in the mounting shell is zero. According to the axial limiting structure of the driving motor, one side of the limiting piece abuts against the driving motor, and the other side of the limiting piece abuts against the mounting shell, so that the driving motor is effectively fixed in the axial direction, and risks of axial loosening and shaking are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drive motors, in particular to an axial limiting structure of a drive motor. Background Art

[0002] The conventional method of fixing the P-gear parking actuator and the door lock drive motor of an automobile is generally to install and fix the front and rear end surfaces of the drive motor with the front and rear ends of the mounting plastic or hardware housing by using a slight interference fit.

[0003] The disadvantages of the above fixing method are: the drive motor undergoes long-term repeated forward and reverse rotation, and is affected by factors such as the ambient temperature and vibration of the vehicle. The drive motor and the mounting plastic and hardware shells will have the risk of axial loosening and shaking, causing the motor output shaft to vibrate more, which may cause the driving wheel and the passive wheel to get stuck, resulting in the loss of the vehicle's P gear parking actuator and the vehicle door lock function. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide an axial limit structure for a drive motor to solve the problem that the existing drive motor experiences long-term repeated forward and reverse rotation and is affected by factors such as the ambient temperature and vibration of the vehicle. The drive motor and the mounting plastic and hardware housing may have the risk of axial looseness and shaking, resulting in increased vibration of the motor output shaft.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides an axial limiting structure for a driving motor, comprising: a mounting shell, on which a mounting groove is provided; a driving motor, which is installed in the mounting groove; a limiting member, which is installed between the axial end of the driving motor and the mounting shell; wherein one side of the limiting member abuts against the driving motor, and the other side abuts against the mounting shell, so that the axial degree of freedom of the driving motor in the mounting shell is zero.

[0007] As a preferred technical solution of the utility model, the limiting member is provided with a notch groove corresponding to the axial end of the driving motor, and the axial end of the driving motor is inserted into the notch groove.

[0008] As a preferred technical solution of the utility model, a first supporting spring is provided on the limiting member, one end of the first supporting spring is connected to the limiting member, and the other end abuts against the mounting shell, and the first supporting spring has an elastic force toward the mounting shell in the initial state.

[0009] As a preferred technical solution of the present utility model, the first supporting spring piece includes two upper supporting spring pieces, and the upper supporting spring pieces are respectively arranged on the left and right sides of the upper part of the limiting member.

[0010] As a preferred technical solution of the present utility model, the first supporting spring piece includes two lower supporting spring pieces, and the lower supporting spring pieces are respectively arranged on the left and right sides of the lower part of the limiting member.

[0011] As a preferred technical solution of the utility model, a second supporting spring piece is also provided on the limiting member, one end of the second supporting spring piece is connected to the limiting member, and the other end abuts against the axial end of the driving motor, and the second supporting spring piece has an elastic force toward the driving motor when it is in the initial state.

[0012] As a preferred technical solution of the present utility model, the other end of the second supporting elastic sheet extends toward the mounting shell.

[0013] As a preferred technical solution of the present invention, the second supporting spring is arranged on the upper side of the notch groove.

[0014] As a preferred technical solution of the utility model, the limiting member is provided with a first spring clip groove corresponding to the first supporting spring clip, one end of the first supporting spring clip is connected to the groove wall of the first spring clip groove, the first spring clip groove coincides with the symmetry bisector of the first supporting spring clip and the width of the first spring clip groove is greater than the width of the first supporting spring clip.

[0015] As a preferred technical solution of the present utility model, the limiting member is a symmetrical structure.

[0016] Compared with the prior art, the axial limiting structure of the drive motor of the utility model has one side of the limiting member abutting against the drive motor and the other side abutting against the mounting housing, so that the drive motor is effectively fixed in the axial direction and the risk of axial looseness and shaking is avoided.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a three-dimensional view of the assembly structure of an axial limiting structure of a driving motor of the utility model;

[0020] Figure 2 This is an exploded view of an axial limiting structure of a driving motor of the utility model;

[0021] Figure 3 This is a three-dimensional view of a limiting member in an axial limiting structure of a driving motor according to the utility model;

[0022] Figure 4 This is a front view of a limiting member in an axial limiting structure of a driving motor according to the utility model;

[0023] Figure 5 It is a side view of a limiting member in an axial limiting structure of a driving motor of the utility model;

[0024] Description of the symbols in the figure:

[0025] 1. Mounting shell; 11. Mounting slot; 2. Driving motor; 3. Limiting member; 31. Notch slot; 32. First supporting spring piece; 321. Upper supporting spring piece; 322. Lower supporting spring piece; 33. Second supporting spring piece; 34. First spring piece slot. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0033] See also Figure 1 and Figure 2The embodiment of the utility model provides an axial limit structure of a driving motor, which comprises: a mounting housing 1, on which a mounting groove 11 is provided; a driving motor 2, which is mounted in the mounting groove 11; a limit member 3, which is mounted between the axial end of the driving motor 2 and the mounting housing 1; wherein one side of the limit member 3 abuts against the driving motor 2, and the other side abuts against the mounting housing 1, so that the axial degree of freedom of the driving motor 2 in the mounting housing 1 is zero. Optionally, the limit member 3 is made of metal.

[0034] In this embodiment, in order to prevent the drive motor 2 from moving in the axial direction when installed in the mounting groove 11 of the mounting shell 1, a limit member 3 is arranged between the mounting shell 1 and the drive motor 2. One side of the limit member 3 abuts against the drive motor 2, and the other side abuts against the mounting shell 1, thereby ensuring that the axial degree of freedom of the drive motor 2 in the mounting shell 1 is zero. In other words, the drive motor 2 cannot move in the axial direction, thereby achieving axial limitation thereof, preventing the drive motor 2 from axial displacement in the mounting shell 1, and the overall structure is more stable and reliable.

[0035] Further, such as Figures 3 to 5 As shown, in order to better adapt to and fix the axial end of the driving motor 2 , a notch groove 31 corresponding to the axial end of the driving motor 2 is provided on the limiting member 3 , and the axial end of the driving motor 2 is passed through the notch groove 31 .

[0036] In this embodiment, by providing a corresponding notch groove 31 on the stopper 3, it is ensured that the axial end of the drive motor 2 can be accurately inserted and fixed in the groove, and a close contact surface is formed between the axial end of the drive motor 2 and the stopper 3. This contact surface can effectively disperse and absorb the vibration and impact generated when the motor is running, ensuring that the connection between the motor and the stopper 3 is firm and reliable. Specifically, the notch groove 31 is opened upward from the bottom end of the stopper 3, so that the stopper 3 is roughly U-shaped, which is more convenient in the assembly stage, so that the stopper 3 can be assembled from top to bottom on the axial end of the drive motor 2; at the same time, the upper part of the notch groove 31 is an arc corresponding to the upper surface of the axial end of the drive motor 2, so that the stopper 3 can form a close contact surface with the drive motor 2 after assembly. Optionally, the stopper 3 is in the form of a sheet with a thickness of 0.4 mm.

[0037] Furthermore, a first supporting spring 32 is provided on the limiting member 3 , one end of the first supporting spring 32 is connected to the limiting member 3 , and the other end abuts against the mounting shell 1 . The first supporting spring 32 has elastic force toward the mounting shell 1 in the initial state.

[0038] In this embodiment, the first supporting spring piece 32 fits tightly on the mounting shell 1 due to its own elastic force. While having an elastic force toward the mounting shell 1, it also has a reaction force toward the direction of the driving motor 2. Therefore, it can effectively prevent the driving motor 2 from being displaced in the axial direction when in the mounting shell 1.

[0039] Preferably, the first supporting spring piece 32 and the limiting member 3 are an integrated structure. Preferably, the angle between the first supporting spring piece 32 and the limiting member 3 is 80°, that is, one end of the first supporting spring piece 32 is connected to the limiting member 3, and the other end is inclined toward the mounting housing 1, and the inclination angle is 80°.

[0040] Specifically, a first spring clip groove 34 corresponding to the first supporting spring clip 32 is provided on the limiting member 3, one end of the first supporting spring clip 32 is connected to the groove wall of the first spring clip groove 34, the first spring clip groove 34 coincides with the symmetry bisector of the first supporting spring clip 32 and the width of the first spring clip groove 34 is greater than the width of the first supporting spring clip 32.

[0041] In this embodiment, by connecting one end of the first supporting spring piece 32 to the groove wall of the first spring piece slot 34, it can be ensured that the spring piece can maintain a stable position and shape when subjected to external force, so as to effectively exert its elastic force, and the width of the first spring piece slot 34 is greater than the width of the first supporting spring piece 32, providing deformation space for the spring piece, and when the spring piece is subjected to external force, it can be appropriately deformed in the groove, thereby absorbing and dispersing the impact energy, further improving the buffering effect and elastic limiting function. Preferably, the side wall of the first spring piece slot 34 and the side of the first supporting spring piece 32 are spaced 1mm apart, that is, if the width of the first supporting spring piece 32 is 4mm, the width of the first spring piece slot 34 is 6mm. Preferably, the first supporting spring piece 32 and the first spring piece slot 34 are both rectangular.

[0042] Optionally, the first supporting spring piece 32 includes two upper supporting spring pieces 321, which are respectively arranged on the left and right sides of the upper part of the limiting member 3, ensuring that the elastic force / pressure is evenly distributed on the mounting housing 1, improving the stability of the entire structure, and being able to better resist deformation and displacement when subjected to external force, ensuring the stable limiting of the drive motor 2 in the axial direction. Preferably, the width of the upper supporting spring piece 321 is 4 mm.

[0043] Optionally, the first supporting spring piece 32 includes two lower supporting spring pieces 322, which are respectively arranged on the left and right sides of the lower part of the limiting member 3, to ensure that the elastic force / pressure is evenly distributed on the mounting housing 1, thereby improving the stability of the entire structure, being able to better resist deformation and displacement when subjected to external force, and ensuring the stable limiting of the driving motor 2 in the axial direction. Preferably, the width of the lower supporting spring piece 322 is 2 mm.

[0044] In one embodiment, the number of the first supporting spring clips 32 is four, namely, two upper supporting spring clips 321 and two lower supporting spring clips 322. The two upper supporting spring clips 321 are respectively arranged on the left and right sides of the upper part of the limiting member 3, and the two lower supporting spring clips 322 are respectively arranged on the left and right sides of the lower part of the limiting member 3. The two upper supporting spring clips 321 and the two lower supporting spring clips 322 form four vertices of a symmetrical quadrilateral, thereby ensuring effective limitation between the driving motor 2 and the mounting shell 1 and meeting the stability requirements.

[0045] Furthermore, a second supporting spring 33 is provided on the limiting member 3, one end of the second supporting spring 33 is connected to the limiting member 3, and the other end abuts against the axial end of the driving motor 2. The second supporting spring 33 has an elastic force toward the driving motor 2 in the initial state.

[0046] In this embodiment, when the drive motor 2 is installed in the mounting housing 1, the second supporting spring 33 can use its elastic force to tightly fit the axial end of the drive motor 2 on the second supporting spring 33, so that the limiting member 3 can limit the axis of the drive motor 2 more stably. At the same time, the elastic force of the second supporting spring 33 can also absorb and disperse the vibration energy from the drive motor 2 to a certain extent, reduce the impact of the vibration on the entire structure, and improve the overall shock absorption effect.

[0047] Optionally, the lower end of the first supporting spring piece 32 is connected to the limiting member 3, and the upper end abuts against the mounting shell 1; the upper end of the second supporting spring piece 33 is connected to the limiting member 3, and the lower end abuts against the mounting shell 1, so that the first supporting spring piece 32 and the second supporting spring piece 33 form an eight-shaped supporting structure to ensure effective axial limitation of the drive motor 2.

[0048] Specifically, the other end of the second supporting elastic piece 33 extends toward the mounting housing 1 .

[0049] Specifically, the second supporting spring piece 33 is disposed on the upper side of the notch groove 31 .

[0050] Optionally, the stopper 3 is provided with a second spring clip groove corresponding to the second supporting spring clip 33, one end of the second supporting spring clip 33 is connected to the groove wall of the second spring clip groove, the second spring clip groove coincides with the symmetry bisector of the second supporting spring clip 33, and the width of the second spring clip groove is greater than the width of the second supporting spring clip 33. Further, the second spring clip groove is downwardly connected to the notch groove 31, and the second supporting spring clip 33 is connected to the upper groove wall of the second spring clip groove.

[0051] Optionally, the second supporting spring piece 33 and the limiting member 3 are an integrated structure. Preferably, the width of the second supporting spring piece 33 is 4 mm. Preferably, the angle between the second supporting spring piece 33 and the limiting member 3 is 60°, that is, one end of the second supporting spring piece 33 is connected to the limiting member 3, and the other end is inclined toward the mounting housing 1, and the inclination angle is 60°.

[0052] It can be understood that when the limit member 3 in this embodiment is installed between the axial end of the drive motor 2 and the mounting shell 1, in the installation position, the first support spring piece 32 applies a force to the mounting shell 1 along the axial direction away from the drive motor 2, and the second support spring piece 33 applies a force to the drive motor 2 along the axial direction away from the mounting shell 1, and the first support spring piece 32 and the second support spring piece 33 cooperate to limit the drive motor 2 and the mounting shell 1 in the axial direction.

[0053] Furthermore, the limiting member 3 is a symmetrical structure. Specifically, the limiting member 3 is a left-right symmetrical structure.

[0054] Compared with the prior art, the axial limiting structure of the drive motor of the utility model has one side of the limiting member abutting against the drive motor and the other side abutting against the mounting housing, so that the drive motor is effectively fixed in the axial direction and the risk of axial looseness and shaking is avoided.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A driving motor axial limiting structure, characterized in that: include: An installation housing, wherein the installation housing is provided with an installation groove; A driving motor, wherein the driving motor is installed in the installation groove; A limiting member, the limiting member is installed between the axial end of the driving motor and the mounting housing; Wherein, one side of the limiting member abuts against the driving motor, and the other side abuts against the mounting housing, so that the axial degree of freedom of the driving motor in the mounting housing is zero.

2. The axial limiting structure of a driving motor according to claim 1, characterized in that: The limiting member is provided with a notch groove corresponding to the axial end of the driving motor, and the axial end of the driving motor is inserted into the notch groove.

3. The axial limiting structure of a driving motor according to claim 2, characterized in that: The limiting member is provided with a first supporting spring sheet, one end of which is connected to the limiting member, and the other end of which is abutted against the mounting shell. The first supporting spring sheet has an elastic force toward the mounting shell in an initial state.

4. The axial limiting structure of a driving motor according to claim 3, characterized in that: The first supporting spring piece includes two upper supporting spring pieces, and the upper supporting spring pieces are respectively arranged on the left and right sides of the upper part of the limiting member.

5. The axial limiting structure of a driving motor according to claim 3, characterized in that: The first supporting spring piece includes two lower supporting spring pieces, and the lower supporting spring pieces are respectively arranged on the left and right sides of the lower part of the limiting member.

6. The axial limiting structure of a driving motor according to claim 3, characterized in that: The limiting member is also provided with a second supporting spring sheet, one end of which is connected to the limiting member, and the other end of which abuts against the axial end of the driving motor. The second supporting spring sheet has an elastic force toward the driving motor in an initial state.

7. The axial limiting structure of a driving motor according to claim 6, characterized in that: The other end of the second supporting elastic sheet extends toward the mounting housing.

8. The axial limiting structure of a driving motor according to claim 6, characterized in that: The second supporting spring is arranged on the upper side of the notch groove.

9. The axial limiting structure of a driving motor according to claim 6, characterized in that: The limiting member is provided with a first spring clip groove corresponding to the first supporting spring clip, one end of the first supporting spring clip is connected to the groove wall of the first spring clip groove, the first spring clip groove coincides with the symmetry bisector of the first supporting spring clip and the width of the first spring clip groove is greater than the width of the first supporting spring clip.

10. The driving motor axial limiting structure according to claim 1, characterized in that: The limiting member has a symmetrical structure.

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