Handle and oral cleaning device

Abstract

The application provides a handle and oral cleaning equipment. The handle comprises: a swing motor for outputting swing power; a motor support, a front end of the swing motor is installed on the motor support, an end of the motor support away from the swing motor is provided with a connecting hole; a rear shock pad, a rear end of the swing motor is installed on the rear shock pad; a battery support, the rear shock pad is installed on the battery support; a shell, the swing motor, the motor support, the rear shock pad and the battery support are all installed in the shell, an end of the shell close to the motor support is provided with a cover, the cover is provided with a mounting hole; and a fixed connecting piece, the fixed connecting piece is fixedly connected in the connecting hole through the mounting hole; a peripheral wall of the swing motor, the motor support and the rear shock pad, which extends around an output shaft of the swing motor, is all formed with a preset gap between an inner wall of the shell. The handle can reduce the vibration of the motor transmitted to the handle shell, reduce the vibration noise and improve the user experience.

Description

Technical Field

[0001] This invention relates to the field of oral hygiene technology, and more specifically, to a handle and an oral hygiene device. Background Technology

[0002] As living standards improve, people's awareness of oral care is gradually increasing, and oral cleaning tools on the market are becoming more and more diverse. Among them, water flossers and electric toothbrushes have become essential small household appliances as alternatives to traditional dental floss.

[0003] Taking an electric toothbrush as an example, during operation, the toothbrush needs to be driven by a motor to swing and clean teeth. In order to improve the brushing effect, the swing angle of the toothbrush needs to be increased. Therefore, the motor needs to provide a larger swing action. When the swing angle of the toothbrush spindle increases, the resonance generated by the motor vibration increases, which leads to increased resonance in the handheld part and a worse user experience. Summary of the Invention

[0004] The main objective of this invention is to provide a handle and oral cleaning device that can reduce the vibration transmitted from the motor to the handle housing, reduce vibration noise, and improve the user experience.

[0005] To achieve the above objectives, according to one aspect of the present invention, a handle is provided, comprising:

[0006] A swing motor is used to output swinging power;

[0007] The motor bracket has a connection hole at the end of the motor bracket away from the swing motor.

[0008] The rear shock absorber is mounted on the rear shock absorber.

[0009] Battery bracket, rear shock absorber is mounted on the battery bracket;

[0010] The housing, swing motor, motor bracket, rear shock absorber, and battery bracket are all installed inside the housing. A cover is located at the end of the housing near the motor bracket, and the cover has mounting holes.

[0011] The fixed connector is fixedly connected to the connection hole through the mounting hole;

[0012] The outer peripheral walls of the swing motor, motor bracket, and rear shock absorber, which extend circumferentially around the output shaft of the swing motor, all form a preset gap with the inner wall of the housing.

[0013] Furthermore, a connecting post is provided at the end of the motor bracket away from the swing motor, and a connecting hole is provided on the connecting post.

[0014] Furthermore, the handle also includes a front shock absorber, a mounting boss in the middle of the motor bracket, multiple connecting posts, the mounting boss being located in the middle of the multiple connecting posts, and the front shock absorber being an integral structure, fitted over the mounting boss and connecting posts.

[0015] Furthermore, within a section perpendicular to the central axis of the oscillating motor, the projected outer contour of the front damping pad is located outside the projected outer contour area of ​​the motor bracket and the oscillating motor.

[0016] Furthermore, in a static state, an isolation gap is formed between the outer peripheral wall of the front shock absorber and the inner peripheral wall of the outer shell.

[0017] Furthermore, the fixing connector is a rubber screw; or, a rubber sleeve is provided between the fixing connector and the connecting hole.

[0018] Furthermore, a decorative cover is provided on the outer side of the axial direction of the cover, and the decorative cover sealing cover is located on the outside of the fixed connector.

[0019] Furthermore, the battery bracket includes a mounting slot for mounting the battery, and a shock-absorbing pad is provided outside the mounting slot to cover the battery and dampen its vibration. The shock-absorbing pad is disposed between the battery bracket and the outer casing.

[0020] Furthermore, a control board is provided on the back side of the battery bracket away from the mounting slot, and a preset gap is formed between the control board and the housing.

[0021] According to one aspect of the present invention, an oral cleaning device is provided, comprising a handle and a toothbrush head, wherein the handle is as described above, and the toothbrush head is disposed at the end of the handle and is drivenly connected to the output end of an oscillating motor.

[0022] Applying the technical solution of this invention, the swing motor is connected to the outer casing via a fixed connector through a motor bracket, and to the battery bracket via a rear shock-absorbing pad. This allows the swing motor to be suspended relative to the outer casing, preventing direct contact and cutting off the vibration transmission path from the swing motor to the outer casing, thus reducing vibration energy transmission. The motor bracket is connected to the end of the outer casing via a fixed connector, ensuring that the outer peripheral wall of the motor bracket does not contact the inner wall of the outer casing. Therefore, the vibration of the swing motor cannot be transmitted to the outer casing through the outer peripheral wall of the motor bracket, further cutting off the vibration transmission path of the swing motor from the front end. The motor is mounted on the battery bracket via the rear shock-absorbing pad. On the battery bracket, the outer peripheral wall of the rear shock-absorbing pad does not contact the inner wall of the outer shell. Therefore, the vibration of the swing motor is not directly transmitted to the outer shell through the outer peripheral wall. This further cuts off the vibration transmission path of the swing motor from the rear end. The vibration energy of the swing motor can only be transmitted to the outer shell indirectly through the front fixed connector or through the rear battery bracket. With the above-mentioned shock-absorbing structure design, the structure related to the resonance source of the swing motor can be shock-absorbing from both the front and rear ends. Therefore, the vibration energy transmission of the swing motor can be greatly reduced, the resonance energy can be reduced, the shock absorption effect of the handle can be improved, vibration noise and grip vibration can be reduced, and the user experience can be improved. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 An exploded view of an oral cleaning device according to an embodiment of the present invention is shown.

[0025] Figure 2 A cross-sectional view of an oral cleaning device according to an embodiment of the present invention is shown;

[0026] Figure 3 A perspective structural diagram of the mechanism of an oral cleaning device according to an embodiment of the present invention is shown;

[0027] Figure 4 A cross-sectional structural diagram of the mechanism of an oral cleaning device according to an embodiment of the present invention is shown;

[0028] Figure 5 A first isometric view of the motor bracket of an oral cleaning device according to an embodiment of the present invention is shown;

[0029] Figure 6 A first isometric view of the motor bracket of an oral cleaning device according to an embodiment of the present invention is shown; and

[0030] Figure 7A perspective view of the front shock-absorbing pad of an oral cleaning device according to an embodiment of the present invention is shown.

[0031] The above figures include the following reference numerals:

[0032] 1. Oscillating motor; 2. Motor bracket; 3. Rear shock absorber; 4. Battery bracket; 5. Housing; 6. Connecting hole; 7. Cover; 8. Mounting hole; 9. Fixing connector; 10. Connecting post; 11. Front shock absorber; 12. Mounting boss; 13. Decorative cover; 14. Shock-absorbing rubber pad; 15. Toothbrush head; 16. Switch circuit board; 17. Main board; 18. Slot; 19. Snap-fit ​​protrusion; 20. Mounting protrusion; 21. Mounting groove; 22. Forward pressure plate; 23. Battery. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] See also Figures 1 to 7 As shown, the present invention provides a handle, comprising: a swing motor 1 for outputting swing power; a motor bracket 2, the front end of the swing motor 1 is mounted on the motor bracket 2, and a connection hole 6 is provided at the end of the motor bracket 2 away from the swing motor 1; a rear shock absorber 3, the rear end of the swing motor 1 is mounted on the rear shock absorber 3; a battery bracket 4, the rear shock absorber 3 is mounted on the battery bracket 4; a housing 5, the swing motor 1, the motor bracket 2, the rear shock absorber 3 and the battery bracket 4 are all mounted in the housing 5, a cover 7 is provided at the end of the housing 5 near the motor bracket 2, and a mounting hole 8 is provided on the cover 7; and a fixing connector 9, which is fixedly connected to the connection hole 6 through the mounting hole 8; the outer peripheral walls of the swing motor 1, the motor bracket 2 and the rear shock absorber 3 extending circumferentially around the output shaft of the swing motor 1 all form a preset gap with the inner wall of the housing 5.

[0035] The swing motor 1 is connected to the outer casing 5 via a fixed connector 9 through a motor bracket 2, and to the battery bracket 4 via a rear shock-absorbing pad 3. This allows the swing motor 1 to be suspended relative to the outer casing 5, preventing direct contact and cutting off the vibration transmission path between the swing motor 1 and the outer casing 5, thus reducing vibration energy transmission. The motor bracket 2 is connected to the end of the outer casing 5 via the fixed connector 9, ensuring that the outer peripheral wall of the motor bracket 2 does not contact the inner wall of the outer casing 5. Therefore, the vibration of the swing motor 1 cannot be transmitted to the outer casing 5 through the outer peripheral wall of the motor bracket 2, further cutting off the vibration transmission path of the swing motor 1 from the front end. The motor is mounted on the battery bracket 4 via the rear shock-absorbing pad 3. On the pool bracket 4, the outer peripheral wall of the rear shock-absorbing pad 3 does not contact the inner wall of the outer shell 5. Therefore, the vibration of the swing motor 1 will not be directly transmitted to the outer shell 5 through the outer peripheral wall. The vibration transmission path of the swing motor 1 can be further cut off from the rear end. The vibration energy of the swing motor 1 can only be indirectly transmitted to the outer shell 5 through the front fixed connector 9 or through the rear battery bracket 4. With the above-mentioned shock-absorbing structure design, the structure related to the resonance source of the swing motor 1 can be shock-absorbing from both the front and rear ends. Therefore, the vibration energy transmission of the swing motor 1 can be greatly reduced, the resonance energy can be reduced, the shock absorption effect of the handle can be improved, the vibration noise and grip vibration can be reduced, and the user experience can be improved.

[0036] In this embodiment, along the axial direction of the swing motor 1, the motor bracket 2, the swing motor 1, the rear shock absorber 3, and the battery bracket 4 are arranged sequentially. The front end of the swing motor 1 is connected to the cover 7 in the axial direction through the motor bracket 2, and the rear end of the swing motor 1 is connected to the battery bracket 4 in the axial direction through the rear shock absorber 3. The outer peripheral walls of the swing motor 1, the motor bracket 2, and the rear shock absorber 3, which extend circumferentially around the output shaft of the swing motor 1, all form a preset gap with the inner wall of the outer casing 5. Therefore, the swing motor 1, the motor bracket 2, and the rear shock absorber 3 do not contact the inner wall of the outer casing 5 in the circumferential direction. They are only installed through the axial structure. The vibration transmission path is only axial and dispersed at both ends. Therefore, the vibration transmission path is small, and the shock absorber structure can be separated, which can effectively improve the shock absorption effect and reduce vibration transmission.

[0037] The oscillating motor 1 is, for example, an acoustic motor. The fixed connector 9 is, for example, a threaded connector.

[0038] In one embodiment, a connecting post 10 is provided at the end of the motor bracket 2 away from the swing motor 1, and a connecting hole 6 is provided on the connecting post 10.

[0039] In this embodiment, by providing a connecting hole 6 at the end of the motor bracket 2, a fixed connection with the fixed connector 9 can be easily achieved. By providing a connecting post 10, the overall axial length of the motor bracket 2 can be increased with less material, facilitating the connection with the fixed connector 9. Since the motor bracket 2 achieves multi-point contact with the outer shell 5 through the connecting post 10, rather than forming a large-area contact through the end face, the contact area between the motor bracket 2 and the outer shell 5 can be further reduced, thus reducing the transmission of vibration energy.

[0040] The number of connecting posts 10 is at least two, and they are evenly distributed along the circumference of the cover 7, which can improve the uniformity of the force distribution between the motor bracket 2 and the outer casing 5, and improve the rationality of the structural design. In this embodiment, the number of connecting posts 10 is four.

[0041] In one embodiment, the handle further includes a front shock absorber 11, a mounting boss 12 is provided in the middle of the motor bracket 2, there are multiple connecting posts 10, the mounting boss 12 is located in the middle of the multiple connecting posts 10, the front shock absorber 11 is an integral structure, and the front shock absorber 11 is sleeved on the mounting boss 12 and the connecting posts 10.

[0042] The motor bracket 2 has a higher hardness than the front damping pad 11 and the rear damping pad 3. In one embodiment, the motor bracket 2 is made of hard rubber, while the front damping pad 11 and the rear damping pad 3 are made of soft rubber.

[0043] In this embodiment, in order to ensure the installation and fixation effect of the motor bracket 2 on the swing motor 1 and reduce the vibration amplitude of the swing motor 1 during operation, the motor bracket 2 needs to have good rigidity to constrain the vibration of the swing motor 1. However, since the rigidity of the motor bracket 2 is relatively high, although it can limit the vibration of the swing motor 1 to a certain extent, the vibration of the swing motor 1 is also affected by the rigidity of the motor bracket 2 after it is transmitted to the motor bracket 2. As a result, the shock absorption function of the motor bracket 2 is relatively poor. If the motor bracket 2 comes into contact with the outer shell 5 during vibration, the transmission efficiency of the vibration is also higher, which will have an adverse effect on the shock absorption performance of the handle.

[0044] By setting the front shock-absorbing pad 11, shock absorption protection can be formed on the outer periphery of the motor bracket 2. When the motor bracket 2 is affected by the vibration of the swing motor 1, the outer peripheral wall will not directly contact the outer shell 5. Instead, the contact will be formed between the front shock-absorbing pad 11 and the inner peripheral wall of the outer shell 5. Since the front shock-absorbing pad 11 is made of soft rubber, it has better absorption of vibration energy and can more efficiently absorb the vibration energy transmitted from the swing motor 1 to the motor bracket 2. During the vibration process, the vibration energy transmitted from the motor bracket 2 to the outer shell 5 through the front shock-absorbing pad 11 is greatly reduced. Therefore, it can effectively reduce the energy that the swing motor 1 may transmit to the outer shell 5 in the circumferential direction during the vibration process, thereby reducing the vibration during the grip of the handle and improving the user experience.

[0045] In one embodiment, in a cross section perpendicular to the central axis of the swing motor 1, the projected outer contour of the front shock absorber 11 is located outside the projected outer contour area of ​​the motor bracket 2 and the swing motor 1.

[0046] In this embodiment, since the projected outer contour of the front damping pad 11 is located outside the projected outer contour area of ​​the motor bracket 2 and the swing motor 1, neither the motor bracket 2 nor the swing motor 1 will directly contact the outer shell 5 during the vibration process. They can only indirectly contact the outer shell 5 through the front damping pad 11. Through this indirect contact, the energy transfer during the operation of the swing motor 1 can be greatly reduced, and the vibration effect can be weakened.

[0047] In one embodiment, the motor bracket 2 has a mounting cavity on the side facing the swing motor 1, the first end of the swing motor 1 is installed in the mounting cavity and forms an interference fit with the motor bracket 2, and the rear shock absorber 3 also has a mounting cavity on the side facing the swing motor 1, the second end of the swing motor 1 is installed in the mounting cavity of the rear shock absorber 3 and forms an interference fit with the rear shock absorber 3.

[0048] In this embodiment, the motor bracket 2 and the rear shock absorber 3 are both sleeved on the outer periphery of the swing motor 1. Therefore, the distance between the outer periphery of the swing motor 1 and the inner periphery of the outer casing 5 is greater than that between the motor bracket 2 and the rear shock absorber 3. Under the action of the motor bracket 2 and the rear shock absorber 3, there will be no direct contact between them and the inner periphery of the outer casing 5. This can more effectively prevent the vibration energy of the swing motor 1 from being directly transmitted to the outer casing 5, thereby improving the shock absorption effect of the swing motor 1.

[0049] In one embodiment, in a static state, an isolation gap is formed between the outer peripheral wall of the front shock absorber 11 and the inner peripheral wall of the outer shell 5. In this embodiment, in a static state, none of the parts of the handle vibrate, and the swing motor 1 does not output vibration energy. In this state, all the components of the handle are in a natural state. At this time, an isolation gap is formed between the outer peripheral wall of the front shock absorber 11 and the inner peripheral wall of the outer shell 5, which can ensure that the front shock absorber 11 will not come into contact with the outer peripheral side of the outer shell 5 in a natural state. Therefore, when the swing motor 1 vibrates only slightly, which is not enough to cause the outer peripheral wall of the front shock absorber 11 to come into contact with the outer shell 5, it can avoid the formation of a vibration transmission path between the outer peripheral side of the front shock absorber 11 and the outer shell 5, which can further improve the shock absorption effect of the front shock absorber 11 on the swing motor 1.

[0050] In one embodiment, the fixing connector 9 is a rubber screw.

[0051] In this embodiment, by setting the fixing connector 9 as a rubber screw, the fixing connector 9 itself can also have good shock absorption performance. Thus, in the process of the swing motor 1 transmitting vibration energy to the outer shell 5 through the motor bracket 2 and the fixing connector 9, the rubber screw can be used to further form a shock absorption effect, thereby more effectively weakening the vibration energy transmitted from the swing motor 1 to the outer shell 5 through the fixing connector 9.

[0052] In one embodiment, a rubber sleeve is provided between the fixing connector 9 and the connecting hole 6, and the fixing connector 9 is fixedly connected to the connecting hole 6 through the rubber sleeve. In this embodiment, the fixing connector 9 is not directly connected to the connecting hole 6, but is connected to the connecting hole 6 through the rubber sleeve. Therefore, the material properties of the rubber sleeve can be used to further reduce the vibration energy transmitted from the motor bracket 2 to the fixing connector 9, thereby reducing the vibration energy transmitted from the fixing connector 9 to the outer shell 5.

[0053] In one embodiment, the fastener 9 can also be a metal screw, thereby providing better structural performance.

[0054] In one embodiment, a decorative cover 13 is provided on the axial outer side of the cover 7, and the decorative cover 13 is sealed on the outside of the fixed connector 9. The decorative cover 13 can also cover the fixed connector 9, thus creating a better appearance.

[0055] In this embodiment, the cover 7 is disposed at the end of the outer casing 5 and sinks down from the end of the outer casing 5 to form a recess. When the fixing connector 9 is a metal screw, the screw head can be located in the recess. After the metal screw is installed, a decorative cover 13 can be fixedly installed at the opening of the recess, thereby sealing the recess and keeping the screw head in a sealed space. This effectively protects the screw head and prevents external moisture from corroding it and affecting the service life of the metal screw. The decorative cover 13 can be glued to the end of the outer casing 5 or fixed to the end of the outer casing 5 in other ways.

[0056] In one embodiment, the battery holder 4 includes a mounting slot for mounting the battery 23. A shock-absorbing pad 14 is disposed outside the mounting slot to cover and dampen the battery 23. The shock-absorbing pad 14 is positioned between the battery holder 4 and the outer casing 5. In this embodiment, the shock-absorbing pad 14 located between the battery 23 and the outer casing 5 can absorb the residual vibration generated by the tail of the swing motor 1, thereby further reducing vibration energy and achieving the purpose of reducing the vibration felt in the handle's grip portion.

[0057] In one embodiment, a control board is provided on the back side of the battery bracket 4 away from the mounting slot, and a preset gap is formed between the control board and the housing 5.

[0058] In this embodiment, the control board is mounted on the battery bracket 4 and forms a preset gap with the outer casing 5. Therefore, the control board will not directly contact the outer casing 5, and will not directly transmit the vibration energy of the swing motor 1 to the outer casing 5, which can further reduce the energy transmission path. At the same time, since the control board will not contact the outer casing 5, it will not collide with the outer casing 5 due to the vibration of the swing motor 1. This can effectively avoid problems such as loosening or damage to components caused by the control board colliding with the outer casing 5, and ensure the working performance and structural stability of the control board.

[0059] In one embodiment, the control board includes a switch circuit board 16 and a main board 17, with the swing motor 1 and the battery bracket 4 spaced apart; the switch circuit board 16 is positioned corresponding to the swing motor 1; the main board 17 is positioned corresponding to the battery bracket 4, the switch circuit board 16 and the main board 17 are spaced apart, and there is a preset gap between the main board 17 and the swing motor 1.

[0060] In this embodiment, the control board is divided into two spaced-apart parts according to its location, so that the switch circuit board 16 corresponding to the swing motor 1 and the main board 17 corresponding to the battery bracket 4 are set separately, forming a split structure. The connection between the switch circuit board 16 and the main board 17 can be disconnected, so that the vibration of the swing motor 1 can only be transmitted to the switch circuit board 16 and cannot be further transmitted from the switch circuit board 16 to the main board 17. This cuts off the vibration transmission path of the swing motor 1 as a resonance source to transmit vibration from the control board to the battery bracket 4, thereby further reducing the mutual contact between internal components, reducing the vibration transmission path, and avoiding the transmission of resonance.

[0061] In one embodiment, the switch circuit board 16 and the main board 17 are connected by wires. In this embodiment, the switch circuit board 16 and the main board 17 are connected by a power line, which enables power transmission between the switch circuit board 16 and the main board 17. This allows the battery 23 to power both the switch circuit board 16 and the main board 17 simultaneously, eliminating the need for multiple power supplies, resulting in a more compact structure and smaller footprint.

[0062] In one embodiment, a mounting plane is provided on the side wall of the swing motor 1, a switch circuit board 16 is provided on the side where the mounting plane is located, and there is a preset distance between the switch circuit board 16 and the end face of the battery bracket 4 facing the swing motor 1. The main board 17 is provided on the side wall of the battery bracket 4, and the main board 17 and the switch circuit board 16 are respectively located on both sides of the end face of the battery bracket 4 facing the swing motor 1.

[0063] In this embodiment, by providing a mounting plane on the side wall of the swing motor 1, sufficient space can be formed between this side of the swing motor 1 and the housing 5, thereby enabling the installation of the switch circuit board 16. The main board 17 and the switch circuit board 16 are respectively located on both sides of the end face of the battery bracket 4 near the swing motor 1. This avoids the main board 17 extending too far and coming into contact with the rear shock absorber 3 or the swing motor 1, and also avoids the switch circuit board 16 extending too far and coming into contact with the battery bracket 4. This prevents the formation of a vibration transmission path and ensures the shock absorption effect of the separate installation of the switch circuit board 16 and the main board 17.

[0064] In one embodiment, the front end of the swing motor 1 is mounted on the motor bracket 2, the rear end of the swing motor 1 is mounted on the rear shock absorber 3, the first end of the switch circuit board 16 is mounted on the motor bracket 2, and the second end of the switch circuit board 16 is mounted on the rear shock absorber 3.

[0065] In this embodiment, the two ends of the switch circuit board 16 are respectively mounted on the motor bracket 2 and the rear shock-absorbing pad 3 located on the outer periphery of the swing motor 1. Therefore, the switch circuit board 16 and the swing motor 1 do not form direct contact, so that the vibration of the swing motor 1 cannot be directly transmitted to the switch circuit board 16. Instead, it is transmitted to the switch circuit board 16 after being damped by the motor bracket 2 and the rear shock-absorbing pad 3. This can greatly reduce the vibration transmitted from the swing motor 1 to the switch circuit board 16, thereby reducing the vibration transmitted from the switch circuit board 16 to the outer shell 5 through the button, and further reducing the grip vibration of the handle.

[0066] In one embodiment, the motor bracket 2 is provided with a slot 18 on the side facing the swing motor 1, the first end of the switch circuit board 16 is inserted into the slot 18, and the second end of the switch circuit board 16 is snapped into the rear shock absorber 3.

[0067] In this embodiment, the first end of the switch circuit board 16 is engaged with the motor bracket 2, and the second end of the switch circuit board 16 is engaged with the rear shock-absorbing pad 3. The switch circuit board 16 can be installed and fixed through a combination of plug-in and snap-in engagement. This plug-in and snap-in engagement method results in a simple structure, eliminates the need for screws, and makes operation more convenient and assembly / disassembly faster.

[0068] In one embodiment, the rear shock absorber 3 is provided with snap-fit ​​protrusions 19, which snap and limit the second end of the switch circuit board 16 onto the rear shock absorber 3. In this embodiment, there are two snap-fit ​​protrusions 19, which are provided on the two sides of the rear shock absorber 3 and bend from both sides towards the middle, forming a slot between the protrusions and the mounting plane of the rear shock absorber 3. The switch circuit board 16 can be directly snapped into the slot and limited by the slot. By providing snap-fit ​​protrusions 19 on both sides of the rear shock absorber 3 to snap the switch circuit board 16, a more stable and balanced clamping structure can be formed, ensuring the stability and reliability of the mounting structure of the switch circuit board 16.

[0069] In one embodiment, the rear shock absorber 3 has a mounting protrusion 20 on the side facing the battery bracket 4, and the battery bracket 4 has a mounting groove 21 corresponding to the mounting protrusion 20, with the mounting protrusion 20 installed within the mounting groove 21. In this embodiment, the rear shock absorber 3 achieves a mounting fit with the end of the battery bracket 4 through the mounting protrusion 20. The mounting protrusion 20 and the mounting groove 21 can be interference-fitted, allowing the mounting protrusion 20 to be firmly locked within the mounting groove 21. This ensures a stable fit between the rear shock absorber 3 and the battery bracket 4, preventing relative movement between them. Consequently, the rear shock absorber 3 provides a good and stable fixation effect for the swing motor 1, further improving the shock absorption effect on the swing motor 1.

[0070] In one embodiment, a forward pressure plate 22 is provided on the battery bracket 4, and the second end of the switch circuit board 16 is stopped on the battery bracket 4 and pressed and fixed by the forward pressure plate 22. The forward pressure plate 22 extends towards the side where the swing motor 1 is located and forms a pressing space below it. The second end of the switch circuit board 16 can be pressed and fixed by the forward pressure plate 22. At the same time, the end face of the battery bracket 4 forms a stop on the switch circuit board 16, which can cooperate with the motor bracket 2 to limit the switch circuit board 16 in the axial direction of the swing motor 1, thereby improving the stability of the installation structure of the switch circuit board 16.

[0071] In one embodiment, the motor bracket 2 is provided with a slot 18 on the side facing the swing motor 1, the first end of the switch circuit board 16 is inserted into the slot 18, the rear shock absorber 3 is provided with a snap-fit ​​protrusion 19, the second end of the switch circuit board 16 is provided with a snap-fit ​​opening, and the switch circuit board 16 is snap-fitted and fixed with the snap-fit ​​protrusion 19 through the snap-fit ​​opening.

[0072] In this embodiment, the snap-fit ​​protrusion 19 is provided on the mounting plane of the rear shock absorber 3 and protrudes towards the outer shell 5. The switch circuit board 16 can be snapped onto the snap-fit ​​protrusion 19 through the snap-fit ​​opening. The engagement between the snap-fit ​​protrusion 19 and the snap-fit ​​opening simultaneously limits the switch circuit board 16 along the axial and radial directions of the swing motor 1, thereby improving the stability and reliability of the mounting structure of the switch circuit board 16 on the rear shock absorber 3.

[0073] In one embodiment, the snap-fit ​​protrusion 19 has a hook on the side facing away from the swing motor 1. After the snap-fit ​​opening of the switch circuit board 16 snaps into the snap-fit ​​protrusion 19, the hook hooks onto the surface of the switch circuit board 16. In this embodiment, the snap-fit ​​protrusion 19 is an elastic structure. By providing a hook at the end of the snap-fit ​​protrusion 19, after the snap-fit ​​opening of the switch circuit board 16 snaps into the snap-fit ​​protrusion 19, the hook of the snap-fit ​​protrusion 19 through the snap-fit ​​opening hooks onto the surface of the switch circuit board 16, forming a pressing and limiting effect on the surface of the switch circuit board 16, thereby further improving the installation and fixing effect between the rear shock-absorbing pad 3 and the switch circuit board 16.

[0074] In one embodiment, buckles can also be provided at the front and rear ends of the battery bracket 4 to fix the motherboard 17 on the battery bracket 4. The installation and fixation between the battery bracket 4 and the motherboard 17 can also be achieved by using buckles in conjunction with other structures, such as buckles and threaded connections, or buckles and pressure plates.

[0075] According to an embodiment of the present invention, the oral cleaning device includes a handle and a toothbrush head 15. The handle is the handle described above, and the toothbrush head 15 is disposed at the end of the handle and is drivenly connected to the output end of the oscillating motor 1.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0078] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A handle, characterized in that, include: A swing motor (1) is used to output swing power; Motor bracket (2), the front end of the swing motor (1) is mounted on the motor bracket (2), and the end of the motor bracket (2) away from the swing motor (1) is provided with a connection hole (6); The rear shock absorber (3) is mounted on the rear shock absorber (3) of the swing motor (1); Battery bracket (4), the rear shock absorber (3) is mounted on the battery bracket (4); The outer casing (5) is provided with the swing motor (1), the motor bracket (2), the rear shock absorber (3), and the battery bracket (4) all installed inside the outer casing (5). A cover (7) is provided at the end of the outer casing (5) near the motor bracket (2), and the cover (7) has mounting holes (8). The fixing connector (9) is fixedly connected to the connecting hole (6) through the mounting hole (8); Front shock absorber (11), the front shock absorber (11) forms shock absorption protection on the outer periphery of the motor bracket (2); The outer peripheral walls of the swing motor (1), the motor bracket (2), and the rear shock absorber (3), which extend circumferentially around the output shaft of the swing motor (1), all form a preset gap with the inner wall of the outer shell (5); A switch circuit board (16) is installed at both ends on the motor bracket (2) and the rear shock absorber (3) on the outer periphery of the swing motor (1); there is a preset distance between the switch circuit board (16) and the end face of the battery bracket (4) facing the swing motor (1); The main board (17) and the switch circuit board (16) are connected by wires; wherein the main board (17) and the switch circuit board (16) are located on both sides of the end face of the battery bracket (4) facing the swing motor (1).

2. The handle according to claim 1, characterized in that, The motor bracket (2) is provided with a connecting post (10) at the end away from the swing motor (1), and the connecting hole (6) is provided on the connecting post (10).

3. The handle according to claim 2, characterized in that, The motor bracket (2) is provided with a mounting boss (12) in the middle. There are multiple connecting columns (10). The mounting boss (12) is located in the middle of the multiple connecting columns (10). The front shock absorber (11) is an integral structure. The front shock absorber (11) is sleeved on the mounting boss (12) and the connecting column (10).

4. The handle according to claim 3, characterized in that, In a cross section perpendicular to the central axis of the swing motor (1), the projected outer contour of the front shock absorber (11) is located outside the projected outer contour area of ​​the motor bracket (2) and the swing motor (1).

5. The handle according to claim 3, characterized in that, In a static state, an isolation gap is formed between the outer peripheral wall of the front shock absorber (11) and the inner peripheral wall of the outer shell (5).

6. The handle according to claim 1, characterized in that, The fixing connector (9) is a rubber screw; or, a rubber sleeve is provided between the fixing connector (9) and the connecting hole (6).

7. The handle according to claim 1, characterized in that, A decorative cover (13) is provided on the outer side of the axial direction of the cover (7), and the decorative cover (13) is sealed on the outside of the fixed connector (9).

8. The handle according to any one of claims 1 to 7, characterized in that, The battery bracket (4) includes a mounting groove for mounting a battery. A shock-absorbing pad (14) is provided outside the mounting groove to cover the battery and dampen its vibration. The shock-absorbing pad (14) is disposed between the battery bracket (4) and the outer shell (5).

9. The handle according to claim 8, characterized in that, A control board is provided on the back side of the battery bracket (4) away from the mounting groove, and a preset gap is formed between the control board and the outer casing (5).

10. An oral hygiene device, comprising a handle and a toothbrush head (15), characterized in that, The handle is the handle according to any one of claims 1 to 9, and the toothbrush head (15) is disposed at the end of the handle and is driven connected to the output end of the swing motor (1).

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