Motor support and electric toothbrush

Abstract

The utility model discloses a motor support and an electric toothbrush. The motor support comprises a first main body structure and a first buffer structure. The first main body structure comprises a first cavity, and the inner wall face of the first cavity comprises a first inner peripheral wall and a first abutting face. The first buffer structure has elasticity and comprises a first radial buffer part and a first axial buffer part. The first radial buffering part connected to the first inner peripheral wall can absorb vibration of the motor on the motor support in the radial direction, damping of the motor and the motor support in the radial direction is achieved, and the first axial buffering part connected to the first abutting face absorbs vibration of the motor on the motor support in the axial direction compared with the prior art. In addition, the end portion of the motor is prevented from directly abutting against the first main body structure, the first axial buffer portion directly absorbs vibration of the end portion of the motor, and the damping effect on the axial direction of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor assembly technical field, concretely relates to a motor support and electric toothbrush. BACKGROUND

[0002] In the related art, the motor support is a rigid body structure, and the damping effect is poor, and a damping gasket needs to be additionally used. In the prior art, in order to enable the damping gasket to buffer the vibration in the axial and radial directions of the motor, the damping gasket is designed to be tooth-shaped at the outer periphery of the motor support, and a tooth-shaped structure is also designed at the outer periphery of the rigid body structure of the motor support and is engaged with the damping gasket, so that the vibration of the motor support in the axial and radial directions is absorbed by the damping gasket through the engagement. However, such a design is not good for the damping effect in the axial direction of the motor. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a motor support capable of improving the damping effect in the axial direction of the motor.

[0004] The utility model further provides an electric toothbrush with the motor support.

[0005] According to the motor support of the first aspect of the utility model, the first main body structure is used for accommodating the motor, the first radial buffer part connected to the first inner circumferential wall can absorb the radial vibration of the motor on the motor support, the damping effect in the radial direction of the motor and the motor support is realized, and the first axial buffer part connected to the first abutting face prevents the end of the motor from directly abutting against the first main body structure, directly absorbs the vibration of the motor on the end, and improves the damping effect in the axial direction of the motor.

[0006] According to the motor support of the utility model, the first main body structure of the motor support is used for accommodating the motor, the first radial buffer part connected to the first inner circumferential wall can absorb the radial vibration of the motor on the motor support, the damping effect in the radial direction of the motor and the motor support is realized, and the first axial buffer part connected to the first abutting face prevents the end of the motor from directly abutting against the first main body structure, directly absorbs the vibration of the motor on the end, and improves the damping effect in the axial direction of the motor.

[0007] According to some embodiments of the present application, the first radial buffer part is connected to the first axial buffer part at an end away from the first opening.

[0008] According to some embodiments of the present application, the first main body structure further comprises a second cavity for accommodating a battery, the second cavity further comprises a second abutting surface, the second abutting surface is arranged opposite to the first abutting surface, the first buffer structure further comprises a second axial buffer part, the second axial buffer part abuts the second abutting surface, and a side surface of the second axial buffer part away from the second abutting surface is used for abutting an end of the battery.

[0009] According to some embodiments of the present application, the first main body structure is provided with a through hole, two ends of the through hole are located at the first abutting surface and the second abutting surface respectively, the first buffer structure further comprises a connecting part, the connecting part is arranged in the through hole, and the first axial buffer part and the second axial buffer part are integrally formed through the connecting part.

[0010] According to some embodiments of the present application, the motor support further comprises an electrical connecting part, a part of the electrical connecting part is located in the first cavity, and another part of the electrical connecting part is electrically connected to the second cavity.

[0011] According to some embodiments of the present application, the first axial buffer part has a buffer surface, the buffer surface is arranged opposite to the first abutting surface, a first recess is formed in the buffer surface, a part of the electrical connecting part is arranged in the first recess, and the electrical connecting part is away from the first opening relative to the buffer surface.

[0012] According to some embodiments of the present application, the first buffer structure comprises a guide part, the guide part is arranged on an outer circumferential surface of the first main body structure, the guide part protrudes outward relative to the outer circumferential surface of the first main body structure, and the guide part extends along an axial direction of the first main body structure.

[0013] According to some embodiments of the present application, a through groove is formed in the first main body structure, the through groove communicates an outer circumferential surface of the first main body structure and an inner wall surface of the first cavity, and the first radial buffer part and the guide part are integrally formed through the through groove.

[0014] According to some embodiments of the present application, a second recess is formed in an inner wall surface of the first radial buffer part, the second recess has a guide end, the guide end communicates with the first opening, the guide end faces the first abutting surface from the first opening, a width of the guide end gradually decreases, and the second recess is arranged along the axial direction of the first main body structure.

[0015] According to some embodiments of the utility model, the motor support further comprises a second main body structure and a second buffer structure. The second main body structure is arranged in a spaced manner with the first main body structure, and the second main body structure comprises a third cavity for accommodating the motor. The third cavity comprises a second opening for placing the motor. The first opening and the second opening are arranged in a facing manner. The inner wall surface of the third cavity comprises a second inner circumferential wall, and the second inner circumferential wall surrounds the central axis of the third cavity. The second buffer structure has elasticity. The second buffer structure has a second radial buffer portion. The second radial buffer portion is connected to the second inner circumferential wall. The second radial buffer portion is used for abutting against the outer circumferential surface of the motor.

[0016] According to the electric toothbrush of the second aspect of the utility model, the motor support of any one of the first aspect of the utility model is further provided with a motor.

[0017] According to the electric toothbrush of the utility model, the first axial buffer portion can not only realize the shock absorption of the motor support in the axial direction, but also improve the shock absorption effect of the motor in the axial direction, thereby prolonging the service life of the motor and the electric toothbrush.

[0018] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings and embodiments, in which:

[0020] Figure 1 It is the first perspective drawing of the first main body structure of the motor support in an embodiment of the utility model;

[0021] Figure 2 It is the second perspective drawing of the first main body structure of the motor support in an embodiment of the utility model;

[0022] Figure 3 It is the split drawing of the first main body structure and the first buffer structure of the motor support in an embodiment of the utility model;

[0023] Figure 4 It is the side sectional view of the first buffer structure of the motor support in an embodiment of the utility model;

[0024] Figure 5 It is Figure 4 It is the enlarged view of area A in the middle;

[0025] Figure 6 It is the internal structure explosion drawing of the electric toothbrush in an embodiment of the utility model;

[0026] Figure 7 For Figure 6 Enlarged view of the middle B region;

[0027] Figure 8 For a three-dimensional view of the second main structure of the motor support in an embodiment of the present application;

[0028] Figure 9 For a three-dimensional view of the damping support in the prior art.

[0029] Reference signs: motor support 100, first main structure 101, first cavity 102, first opening 103, first inner peripheral wall 104, first abutting surface 105, middle axis 106, first buffering structure 107, first radial buffering part 108, first axial buffering part 109, electrical connection 110, buffering surface 111, first groove 112, guide part 113, second groove 114, convex strip 115, second cavity 201, second abutting surface 202, second axial buffering part 203, through hole 301, through slot 302, mounting slot 303, combination part 304, connecting part 401, guide end 501, electric toothbrush 600, second main structure 601, motor 602, clamping part 701, third cavity 801, second opening 802, second inner peripheral wall 803, second buffering structure 804, second radial buffering part 805. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0033] In the description of the utility model, unless otherwise expressly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0034] In the description of the utility model, the description of the reference terms '' an embodiment '', '' some embodiments '', '' illustrative embodiment '', '' example '', '' specific example '' or '' some examples '' means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Reference Figure 9 , Figure 9 It is the structural diagram of prior art shock-absorbing support, and the outer periphery of the shock-absorbing support is designed into a tooth shape, and the outer periphery of the shock-absorbing pad is also designed into a tooth shape and is engaged with the shock-absorbing support, so that the both are in abutment in the axial and radial directions, but the shock-absorbing pad of this design does not contact the motor in the cavity, and therefore the shock-absorbing effect on the axial direction of the motor itself is poor, affecting the service life of the motor.

[0036] Reference Figure 1According to the motor support 100 of the first aspect embodiment of the utility model, the first main body structure 101 is used for accommodating the motor 602, the first radial buffer part 108 connected to the first inner circumferential wall 104 can absorb the vibration of the motor 602 to the motor support 100 in the radial direction, the first radial buffer part 108 and the first axial buffer part 109 are integrally formed as a whole, the stability of the structure is improved, the mutual connection of the first radial buffer part 108 and the first axial buffer part 109 can make the first buffer structure 107 more comprehensive to the wrapping of the first cavity 102, and the shock absorption effect is improved.

[0037] Reference Figure 1 And Figure 3 In some embodiments of the utility model, the end of the first radial buffer part 108 away from the first opening 103 is connected to the first axial buffer part 109. In this way, the first radial buffer part 108 and the first axial buffer part 109 can be integrally formed as a whole, the stability of the structure is improved, and the mutual connection of the two can make the first buffer structure 107 more comprehensive to the wrapping of the first cavity 102, and the shock absorption effect is improved. It should be noted that in some embodiments of the utility model, the first main body structure and the first buffer structure 107 are formed by a double-color injection molding process. The double-color injection molding process has high bonding degree, is easy to process, reduces the assembly process and improves the processing efficiency. The connection of the first radial buffer part 108 and the first axial buffer part 109 also makes it more convenient to use the injection molding process.

[0038] Reference Figure 1 And Figure 2In some embodiments of the utility model, first main body structure 101 still includes second cavity 201 for accommodating battery, second cavity 201 still includes second abutment surface 202, second abutment surface 202 is opposite to first abutment surface 105, first buffering structure 107 still includes second axial buffering part 203, second axial buffering part 203 is abutted to second abutment surface 202, the side surface of second axial buffering part 203 away from second abutment surface 202 is used for abutting with the end of battery. Second cavity 201 is used for accommodating battery, and the second cavity 201 for accommodating battery and the first cavity 102 for accommodating motor 602 are arranged in first main body structure 101, which can be integrally formed, so that the overall structure is more firm and stable. The second axial buffering part 203 designed in the second cavity 201 can also buffer the battery installed in the axial direction, reducing the influence of vibration on the performance and life of the battery. It should be noted that, with reference to Figure 1 And Figure 2 In some embodiments of the utility model, a plurality of convex strips 115 are arranged on the other end surface in second axial buffering part 203 and the second cavity 201 corresponding thereto, the convex strip 115 extends inward from the opening of second cavity 201, and such design is to facilitate the battery to be placed in second cavity 201. The specific principle is to reduce the friction between the battery and the two ends of second cavity 201 during the process of placing the battery in second cavity 201. Preferably, the convex strip 115 is also provided with an inclined angle at the opening end of second cavity 201, which can further reduce the friction.

[0039] With reference to Figure 3 And Figure 4 In some embodiments of the utility model, first main body structure 101 is provided with through hole 301, both ends of through hole 301 are located at first abutment surface 105 and second abutment surface 202 respectively, first buffering structure 107 further includes connecting part 401, connecting part 401 is arranged in through hole 301, and first axial buffering part 109 and second axial buffering part 203 are integrally formed through connecting part 401. The arrangement of through hole 301 can make first axial buffering part 109 and second axial buffering part 203 communicate during the injection molding process. Part of through hole 301 naturally forms connecting part 401. The integral molding mode of the two parts communicated through the opening will not occupy more space on the basis of the original structure, which optimizes the structure and makes the connection between first buffering structure 107 and first main body structure 101 more compact, improving the structural stability.

[0040] It should be noted that, with reference to Figure 1 And Figure 3In some embodiments of the utility model, first inner circumferential wall 104 is provided with a plurality of installation grooves 303, and first radial buffer part 108 includes a plurality of joint parts 304, and joint part 304 is arranged in installation groove 303. Such design can increase the contact area of first radial buffer part 108 and first main body structure 101, improve the stability of first radial buffer part 108 when placed in first cavity 102, and installation groove 303 can also reduce the volume occupied by joint part 304 in first cavity 102, so that the structure is more compact. Correspondingly, in order to make first radial buffer part 108 still play the effect of radial buffering for motor 602, a plurality of protrusions are arranged on the side surface of first radial buffer part 108 away from first inner circumferential wall 104, so as to abut against the outer circumferential surface of motor 602 and buffer.

[0041] Reference Figure 1 And Figure 3 In some embodiments of the utility model, motor support 100 further includes electric connecting piece 110, and a part of electric connecting piece 110 is located in first cavity 102, and another part of electric connecting piece 110 is electrically connected to second cavity 201. The electric connecting piece 110 is arranged to electrically connect the first cavity 102 and the second cavity 201, so that when the motor 602 is placed in the first cavity 102 and the battery is placed in the second cavity 201, the motor 602 and the battery are connected through the electric connecting piece 110, achieving the purpose of providing power for the motor 602 by the battery, and the structure is more compact. It should be noted that in some embodiments of the utility model, the electric connecting piece 110 is a flexible circuit board, and one end of the electric connecting piece 110 placed in the first cavity 102 is provided with a contact point, and the motor 602 is directly connected with the contact point after being placed in the first cavity 102, and the other end of the electric connecting piece 110 is not directly connected to the second cavity 201. In order to optimize the structure, a printed circuit board (not shown in the figure) is arranged on the back of the second cavity 201, and the printed circuit board is electrically connected to both ends of the electric connecting piece 110 and the second cavity 201. In this way, after the battery is placed in the second cavity 201, it will be connected with the printed circuit board, and then the motor 602 in the first cavity 102 will be provided with power through the electric connecting piece 110.

[0042] Reference Figure 1In some embodiments of the utility model, first axial buffer portion 109 has buffer surface 111, buffer surface 111 is opposite first abutment surface 105 sets up, first recess 112 is set up on buffer surface 111, a part of electric connection piece 110 is located in first recess 112, and electric connection piece 110 is away from first opening 103 relative to buffer surface 111. Such design makes a part of electric connection piece 110 buried in first recess 112, so that electric connection piece 110 does not affect the contact of the end face of motor 602 and the buffer surface 111 of first axial buffer portion 109 when the motor 602 is placed in the first cavity 102, thereby improving the contact area of the end of motor 602 and buffer surface 111, and improving the damping effect. It should be noted that, with reference to Figure 1 And Figure 3 In some embodiments of the utility model, in addition to first recess 112 for placing electric connection piece 110, a plurality of recesses of different shapes are set up on buffer surface 111. These recesses are designed to adapt to some protrusions on the end face of motor 602, specifically including the head of a screw and other structures, so that these structures are embedded in the recesses, thereby enabling most of the area of the end face of motor 602 to be unaffected by these protrusions and to be in good contact with buffer surface 111 for buffering and damping, thereby improving the buffering and damping effect.

[0043] With reference to Figure 1 In some embodiments of the utility model, first buffer structure 107 includes guide portion 113, which is arranged on the outer circumferential surface of first main body structure 101. Guide portion 113 protrudes outward relative to the outer circumferential surface of first main body structure 101 and extends along the axial direction of first main body structure 101. In some embodiments of the utility model, motor bracket 100 is used as a bracket for installing motor 602 on an external device. Guide portion 113 can match the inner wall surface of the housing of the device. When motor bracket 100 is used as a component of other devices, guide portion 113 can serve as a guide for installing motor bracket 100 into the housing and can also limit the rotation of motor bracket 100 relative to the housing, thereby improving the stability of the overall structure. It should be noted that, with reference to Figure 6 And Figure 8 In some embodiments of the utility model, second buffer structure 804 mentioned below also has guide portion 113, which is arranged on the outer circumferential surface of second main body structure 601 and can achieve the same technical effect.

[0044] With reference to Figure 1 And Figure 3In some embodiments of the utility model, the first main body structure 101 is provided with a through groove 302, the through groove 302 is communicated with the outer circumferential surface of the first main body structure 101 and the inner wall surface of the first cavity 102, and the first radial buffer part 108 and the guide part 113 are integrally formed through the through groove 302. The design purpose of the through groove 302 is similar to the through hole 301, and the parts of the first buffer structure 107 can also be communicated with each other, achieving the effect of integrally forming shown in the background art, and the first radial buffer part 108 and the guide part 113 are communicated through the through groove 302 and then integrally formed, which does not occupy more space on the basis of the original structure, optimizes the structure and makes the connection of the first buffer structure 107 and the first main body structure 101 more compact, improving the structural stability. It should be noted that, referring to the drawings Figure 3 In some embodiments of the utility model, the through groove 302 is communicated with the first opening 103, so that it is more convenient to process than to open a hole in the outer circumferential surface of the first main body structure 101. Figure 3

[0045] Referring to the drawings Figures 3 to 7 In some embodiments of the utility model, the inner wall surface of the first radial buffer part 108 is provided with a second groove 114, the second groove 114 has a guide end 501, the guide end 501 is communicated with the first opening 103, the guide end 501 is directed from the first opening 103 to the first abutting surface 105, the width of the guide end 501 gradually decreases, and the second groove 114 is arranged along the axial direction of the first main body structure 101. As shown in Figure 6 And Figure 7 In some embodiments of the utility model, the motor 602 is provided with a clamping part 701, in the process of installing the motor 602 into the first cavity 102, the clamping part 701 enters through one end connected with the first opening 103 through the second groove 114, the second groove 114 plays a positioning and guiding role, facilitating installation, and at the same time, the second groove 114 can limit the relative rotation between the motor 602 and the first main body structure 101 in the use process, improving the stability of the overall structure. Referring to the drawings Figures 3 to 5 The guide end 501 is arranged on the second opening 802, and the opening is arranged in the form of a horn on the guide end 501, which plays a guiding role and makes the process of entering the second groove 114 of the clamping part 701 more smooth.

[0046] Referring to the drawings Figure 8 ​In some embodiments of the utility model, motor support 100 still includes second main body structure 601 and second buffer structure 804. Second main body structure 601 is spaced apart from first main body structure 101, and second main body structure 601 includes third cavity 801 for accommodating motor 602, third cavity 801 includes second opening 802 for accommodating motor 602, first opening 103 and second opening 802 are oppositely arranged, and the inner wall surface of third cavity 801 includes second inner circumferential wall 803, and second inner circumferential wall 803 surrounds central axis 106 of third cavity 801. Second buffer structure 804 is elastic, second buffer structure 804 has second radial buffer part 805, second radial buffer part 805 is connected to second inner circumferential wall 803, and second radial buffer part 805 is used for abutting against the outer circumferential surface of motor 602. Making motor support 100 into two sections can facilitate the installation of motor 602 more conveniently, and can match motors 602 of different lengths, and the structure of second radial buffer part 805 is the same as that of first radial buffer part 108, and second radial buffer part 805 also has a good buffering effect, first main body structure 101 and second main body structure 601 are respectively sleeved on both ends of motor 602, and the stability of the overall structure can be improved.

[0047] Reference Figure 6 According to the electric toothbrush 600 of the second aspect of the utility model, the motor support 100 of any one of the first aspect of the utility model is further provided with a motor 602, and the motor 602 is installed in the motor support 100. In addition to the shock absorption of the motor support 100 in the axial direction, the first axial buffer part 109 also improves the shock absorption effect of the motor 602 in the axial direction, prolongs the service life of the motor 602, and prolongs the service life of the electric toothbrush 600.

[0048] The utility model has been described in detail in combination with the drawings above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. An electric motor support, characterized in that The motor support comprises: a first main structure, which comprises a first cavity for accommodating a motor, the first cavity comprising a first opening for placing the motor, an inner wall surface of the first cavity comprising a first inner circumferential wall and a first abutting surface, the first inner circumferential wall surrounding a central axis of the first cavity, the first abutting surface being located at one end of the first cavity away from the first opening, one end of the first inner circumferential wall being connected to the first abutting surface; a first buffer structure, which is elastic, the first buffer structure comprising a first radial buffer portion and a first axial buffer portion, the first radial buffer portion being connected to the first inner circumferential wall, the first axial buffer portion being connected to the first abutting surface, the first radial buffer portion being used for abutting against an outer circumferential surface of the motor, the first axial buffer portion being used for abutting against an end portion of the motor.

2. The motor mount of claim 1, wherein, One end of the first radial buffer portion away from the first opening is connected to the first axial buffer portion.

3. The motor mount of claim 1, wherein, The first main structure further comprises a second cavity for accommodating a battery, the second cavity further comprising a second abutting surface, the second abutting surface being arranged away from the first abutting surface, the first buffer structure further comprising a second axial buffer portion, the second axial buffer portion abutting against the second abutting surface, a side surface of the second axial buffer portion away from the second abutting surface being used for abutting against an end portion of the battery.

4. The motor mount of claim 3, wherein, The first main structure is provided with a through hole, two ends of the through hole being located at the first abutting surface and the second abutting surface respectively, the first buffer structure further comprising a connecting portion, the connecting portion being arranged in the through hole, the first axial buffer portion and the second axial buffer portion being integrally formed through the connecting portion.

5. The motor mount of claim 3, wherein, The motor support further comprises an electrical connector, a part of the electrical connector being located in the first cavity, and another part of the electrical connector being electrically connected to the second cavity.

6. The motor mount of claim 5, wherein, The first axial buffer portion has a buffer surface, the buffer surface being arranged away from the first abutting surface, a first recess being formed in the buffer surface, a part of the electrical connector being arranged in the first recess, the electrical connector being away from the first opening relative to the buffer surface.

7. The motor mount of claim 1, wherein, The first buffer structure comprises a guide portion, the guide portion being arranged on an outer circumferential surface of the first main structure, the guide portion being outwardly protruded relative to the outer circumferential surface of the first main structure, the guide portion extending along an axial direction of the first main structure.

8. The motor mount of claim 7, wherein, The first main structure is provided with a through slot, the through slot being in communication with the outer circumferential surface of the first main structure and the inner wall surface of the first cavity, the first radial buffer portion and the guide portion being integrally formed through the through slot.

9. The motor mount of claim 1, wherein, An inner wall surface of the first radial buffer portion is provided with a second recess, the second recess having a guide end, the guide end being in communication with the first opening, the guide end gradually decreasing in width from the first opening towards the first abutting surface, the second recess being arranged along the axial direction of the first main structure.

10. The motor mount of claim 1, wherein, The motor support further comprises: a second main structure, the second main structure being spaced apart from the first main structure, the second main structure including a third cavity for accommodating the motor, the third cavity including a second opening into which the motor is put, the first opening and the second opening being oppositely arranged, an inner wall surface of the third cavity including a second inner peripheral wall, the second inner peripheral wall surrounding a central axis of the third cavity; a second buffering structure, the second buffering structure being elastic, the second buffering structure having a second radial buffering portion, the second radial buffering portion being connected to the second inner peripheral wall, the second radial buffering portion being configured to abut against an outer peripheral surface of the motor.

11. An electric toothbrush characterized by The electric toothbrush includes: the motor holder according to any one of claims 1-10; the motor being mounted in the motor holder. the motor being mounted in the motor holder.

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