CN213047426U

CN213047426U - Electric toothbrush with pressure sensing structure

Info

Publication number: CN213047426U
Application number: CN202021131479.XU
Authority: CN
Inventors: 葛宝昌; 王有良
Original assignee: Hi P Shanghai Household Appliances Products Co ltd
Current assignee: Hi P Shanghai Household Appliances Products Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-04-27
Anticipated expiration: 2030-06-18

Abstract

The utility model relates to an electric toothbrush technical field is an electric toothbrush with pressure sensing structure particularly, control circuit board set up in the handle be close to in one side of the free end of the brush hair of toothbrush head with motor element between, control circuit board is equipped with two contacts towards motor element department interval, motor element is equipped with the conductive part corresponding to the interval department of two contacts, still is equipped with the elasticity portion on the motor element for provide make the conductive part with the elastic force of contact phase separation. The utility model judges the use pressure through the elastic part made of elastic materials such as soft rubber, when the preset use pressure is reached, the motor component can overcome the elastic force of the elastic part and make the conductive part contact with the open circuit position, and can prompt the user according to the feedback signal of the contact conduction; meanwhile, due to the arrangement of the elastic part, the vibration transmitted to the handle by the motor can be reduced, and the user experience is improved; and the structure is simple, the assembly is convenient, and the cost of parts is low.

Description

Electric toothbrush with pressure sensing structure

Technical Field

The utility model relates to an electric toothbrush technical field is an electric toothbrush with pressure sensing structure particularly.

Background

In the existing electric toothbrush structure, the detection of the tooth brushing strength can be realized by additionally arranging the pressure sensor, so that the tooth brushing strength of a user is ensured to be in a reasonable range, and the tooth brushing effect can be kept on the premise of ensuring that gum is not damaged.

Generally, in the prior art, a mechanical switch is welded on a circuit board of the electric toothbrush, and then the mechanical switch is triggered by a button assembled on a motor, and the pressure is controlled by an assembled spring. The structure of assembling the key, the spring and the welding switch has the problems of complex assembling process, higher part and manual assembling cost, poorer vibration-proof effect of the handle and the like.

Disclosure of Invention

An object of the utility model is to solve the not enough of prior art, provide an electric toothbrush with pressure sensing structure to simplify current electric toothbrush's that has pressure indication function structure.

In order to achieve the above object, there is provided a power toothbrush having a pressure sensing structure, including a head and a handle, a motor component and a control circuit board are arranged in the handle, the front end of the motor component extends into the toothbrush head and is matched and connected with the toothbrush head, the control circuit board is arranged between one side of the handle close to the free ends of the bristles of the toothbrush head and the motor component, and the control circuit board is provided with two contacts facing the motor component at intervals, the motor component is provided with a conductive part corresponding to the interval of the two contacts, the motor assembly is also provided with an elastic part for providing elastic force for separating the conductive part from the contact, so that the motor component can be driven to overcome the elastic force of the elastic part to generate displacement when the toothbrush head is stressed, and when the force of the toothbrush head exceeds a set value, the displacement can enable the conductive part to be conducted with the two contacts.

The utility model discloses still have following preferred technical scheme:

the elastic part comprises a first elastic part and a second elastic part which are symmetrically arranged at two sides of the conductive part.

The motor assembly comprises a motor front cover, a motor and a motor rear cover, the motor front cover is rotatably connected in the handle, and the motor rear cover is provided with the elastic part and the conductive part.

The elastic part is abutted between the motor rear cover and the control circuit board.

Two conductive discs are arranged on the control circuit board facing the motor assembly at intervals to serve as the contacts.

The conductive part is a metal conductive sheet or metal foam.

The motor component is rotationally connected in the handle through a rotating shaft.

The elastic part is made of soft PVC or silica gel or EVA or POE or TPES.

The handle is also internally provided with a bracket for limiting the motor assembly and the control circuit board.

The control circuit board on still be connected with pressure feedback subassembly, pressure feedback subassembly include at least one in luminous part, sound production part and the vibration part for indicate to the user according to the signal that the contact switched on.

Beneficial effects of the utility model

The utility model provides an electric toothbrush with pressure sensing structure's advantage includes but not limited to: the novel pressure sensing structure is designed, the size of the use pressure is judged through the elastic part made of elastic materials such as soft rubber, when the preset use pressure is exceeded, the motor assembly can overcome the elastic force of the elastic part and enable the conductive part to be in contact with the two contacts, so that the two contacts are conducted and transmit feedback signals, and the novel pressure sensing structure is further provided with a pressure feedback assembly which can prompt a user according to the feedback signals conducted by the contacts; meanwhile, due to the arrangement of the elastic part, the vibration transmitted to the handle by the motor can be reduced, and the user experience is improved; and the structure is simple, the assembly is convenient, and the cost of parts is low.

Drawings

Fig. 1 schematically illustrates an exploded view of the electric toothbrush having a pressure sensing structure according to the present invention.

Fig. 2 is a schematic view of the electric toothbrush having a pressure sensing structure according to the present invention in an unstressed state.

Fig. 3 exemplarily shows a B-B sectional view of fig. 2.

Fig. 4 is a schematic view of the electric toothbrush with pressure sensing structure according to the present invention in a stressed state.

Fig. 5 schematically shows a cross-sectional view a-a of fig. 4.

In the figure: 1. the toothbrush comprises a toothbrush head 2, a handle 3, a motor front cover 4, a motor 5, a control circuit board 6, a contact 7, a conductive part 8, a motor rear cover 9, a support 10, an elastic part 11 and a rotating shaft.

Detailed Description

Referring to fig. 1, the present embodiment provides an electric toothbrush with a pressure sensing structure, which includes a toothbrush head 1, a handle 2, a motor assembly, a control circuit board 5, a bracket 9, an elastic portion 10, a contact 6 and a conductive portion 7, wherein the handle 2 and the toothbrush head 1 are detachably connected, the motor assembly, the control circuit board 5 and the bracket 9 are disposed in the handle 2, the bracket 9 is used for limiting the motor assembly and the control circuit board 5, the control circuit board 5 is provided with the contact 6 corresponding to the conductive portion 7, and a transmission shaft at the front end of the motor assembly extends into the toothbrush head 1 and is connected with the toothbrush head 1 in a matching manner to drive the toothbrush head 1 to vibrate. The main components are further described below with reference to the drawings.

The motor component is arranged in the handle 2 and can generate displacement along the arrangement direction of the bristles on the toothbrush head 1, for example, the arrangement direction of the bristles is the up-down direction in the figure, and the motor component can swing up and down. For example, when a downward force is applied to the toothbrush head 1 at the brush head position, the rear portion of the motor assembly can swing upward.

The control circuit board 5 is arranged between one side of the free end of the brush hair of the toothbrush head 1 of the handle 2 and the motor component, two contacts 6 are arranged at the position, facing the motor component, of the control circuit board 5 at intervals, and a gap matched with the conductive part 7 is formed between the two contacts 6. As shown in fig. 3 and 5, in one embodiment, a conductive plate is used as the contact 6, two conductive plates are provided on the control circuit board 5 at a left-right interval, and a gap is provided between the two conductive plates, so that when the conductive part 7 is not in contact with the two conductive plates, the electrical connection between the two conductive plates is in an open state. The conductive part 7 is a metal conductive sheet or a metal foam or other structures capable of realizing conductivity.

The motor assembly is further provided with an elastic part 10 for providing an elastic force for separating the conductive part 7 from the two contacts 6, so that the conductive part 7 can be separated from the two contacts 6 in a state of not receiving an external force, and the electrical connection between the two contacts 6 is in a disconnection state. In one embodiment, the elastic portion 10 includes a first elastic portion and a second elastic portion symmetrically disposed on both sides of the conductive portion 7, taking fig. 5 as an example, the displacement direction of the motor assembly is the up-down direction, and the first elastic portion and the second elastic portion are symmetrically disposed on both sides of the conductive portion 7, forming an elastic leg similar to a V shape. Through the arrangement of the elastic part 10, the vibration transmitted from the motor 4 to the handle 2 can be reduced, thereby improving the use feeling of the user. In a preferred embodiment, the elastic part 10 is made of elastic material, including but not limited to soft PVC, silicone, EVA, POE, TPES, etc.

Referring to fig. 3 and 5, when a user brushes his/her teeth, the bristle part of the toothbrush head 1 is subjected to a downward force and drives the motor assembly to overcome the elastic force of the elastic part 10 and displace, when the force exceeds a predetermined value, the conductive part 7 is in contact with the two contacts 6 and the two contacts 6 are conducted, and the control circuit board 5 receives a corresponding electrical signal after the two contacts 6 are conducted. The set value of the acting force is controlled by the elastic part 10, and the elastic force of the elastic part 10 can be changed by adopting different materials, thicknesses and structures to construct different elastic parts 10.

In addition, the control circuit board 5 is further provided with a pressure feedback assembly, wherein the pressure feedback assembly comprises at least one of a light-emitting component, a sound-emitting component and a vibration component and is used for prompting a user according to a signal conducted by the contact.

Example 1

Referring to fig. 1 to 5, in this embodiment, as described above, the electric toothbrush having a pressure sensing structure includes a toothbrush head 1, a handle 2, a motor assembly, a control circuit board 5, a bracket 9, an elastic part 10, conductive plates, and conductive sheets, wherein the motor assembly includes a motor front cover 3, a motor 4, and a motor rear cover 8, the motor 4 is accommodated between the motor front cover 3 and the motor rear cover 8, referring to fig. 4, the motor front cover 3 is rotatably connected to the handle 2 through a rotating shaft 11 arranged in a direction perpendicular to a paper surface, the control circuit board 5 is provided with two conductive plates facing the motor assembly at an interval, the motor rear cover 8 is provided with the conductive sheets corresponding to the two conductive plates, and the elastic parts 10 are respectively provided on both sides of the conductive sheets, the elastic part 10 is abutted between the control circuit board 5 and the motor rear cover 8.

When the user brushed teeth, toothbrush head 1's brush hair part will receive decurrent effort, and can drive motor element overcome the elastic force of elastic component 10 and take place the displacement to make behind the motor lid 8 drive the elastic force upward movement that the elastic component 10 was overcome to the conducting strip, when the effort exceeded the setting value, enable conducting strip and two conductive discs contact and make two conductive discs switch on mutually, conductive disc switches on back control circuit board 5 and can receive corresponding feedback signal to indicate by control circuit board 5 control pressure feedback subassembly, in an embodiment, indicate the user through lighting the luminous ring that sets up in the handle outside. In another embodiment, the user is prompted by a voice prompting device. In yet another embodiment, the user is prompted by different vibration patterns of the vibrating member.

Example 2

This embodiment provides an example of assembling the electric toothbrush having the pressure sensing structure as described in embodiment 1, first assembling the motor assembly, and assembling the motor front cover 3 and the motor rear cover 8 to the motor 4, respectively; the conductive sheet is assembled on the motor rear cover 8, the motor assembly is assembled in the bracket 9, and finally the whole bracket 9 provided with the motor assembly is assembled in the handle 2.

The above, only for the concrete implementation of this utility model, but the scope of protection of this utility model is not limited to this, and any person skilled in this technical field is in the technical scope of this utility model discloses, according to the technical scheme of this utility model and novel design add in equal replacement or change, all should be covered in the scope of protection of this utility model.

Claims

1. An electric toothbrush with a pressure sensing structure comprises a toothbrush head and a handle, wherein a motor component and a control circuit board are arranged in the handle, the front end of the motor component extends into the toothbrush head and is matched and connected with the toothbrush head, it is characterized in that the control circuit board is arranged between one side of the free end of the brush hair of the toothbrush head close to the handle and the motor component, and the control circuit board is provided with two contacts facing the motor component at intervals, the motor component is provided with a conductive part corresponding to the interval of the two contacts, the motor assembly is also provided with an elastic part for providing elastic force for separating the conductive part from the contact, so that the motor component can be driven to overcome the elastic force of the elastic part to generate displacement when the toothbrush head is stressed, and when the force of the toothbrush head exceeds a set value, the displacement can enable the conductive part to be conducted with the two contacts.

2. The electric toothbrush having a pressure sensing structure according to claim 1, wherein the elastic part includes a first elastic part and a second elastic part symmetrically disposed at both sides of the conductive part.

3. The electric toothbrush having a pressure sensing structure according to claim 1, wherein the motor assembly includes a motor front cover, a motor, and a motor rear cover, the motor front cover being rotatably coupled to the inside of the handle, and the motor rear cover being provided with the elastic portion and the conductive portion.

4. The electric toothbrush having a pressure sensing structure according to claim 3, wherein the elastic part is held between the motor rear cover and the control circuit board.

5. The electric toothbrush having a pressure sensing structure according to any one of claims 1 to 4, wherein the control circuit board has two conductive pads spaced apart facing the motor assembly to serve as the contacts.

6. The electric toothbrush having a pressure sensing structure according to any one of claims 1 to 4, wherein the conductive portion is a metal conductive sheet or a metal foam.

7. The electric toothbrush having a pressure sensing structure according to any one of claims 1 to 4, wherein the motor assembly is rotatably connected to the inside of the handle by a rotating shaft.

8. An electric toothbrush with pressure sensing structure as claimed in any of claims 1 to 4, wherein the elastic part is made of soft PVC or silica gel or EVA or POE or TPES.

9. The electric toothbrush having a pressure sensing structure according to any one of claims 1 to 4, wherein a holder is further provided in the handle for limiting the motor assembly and the control circuit board.

10. The electric toothbrush having a pressure sensing structure according to any one of claims 1 to 4, further comprising a pressure feedback assembly including at least one of a light emitting part, a sound emitting part and a vibration part for providing a prompt to a user according to a signal that the contact is turned on.