Pressure sensing structure of electric toothbrush

Abstract

The utility model discloses a pressure sensing structure of an electric toothbrush, which comprises a main body, a brush head unit is arranged on the main body, the main body comprises a shell and a prompt unit arranged at the top of the shell, an extrusion unit connected with the brush head unit is arranged in the shell, and a control unit in abutting connection with the extrusion unit is further arranged in the shell. The prompting unit is electrically matched and connected with the control unit; when the brush head unit is subjected to excessive pressure, the extrusion unit extrudes the control unit, the resistance value of the control unit changes, and the control unit transmits current to the prompt unit to give out a prompt. The electric toothbrush is reasonable in structural design, the electric toothbrush head is matched with the squeezing unit, signals are transmitted to the electric control board when the electric toothbrush is subjected to overlarge pressure, the electric control board directly controls the lamplight assembly to be started through the conductive needle, the lamplight assembly gives out lamplight prompt, and a user is reminded that the pressing force of holding the electric toothbrush by hand is overlarge; therefore, damage to teeth and abrasion to enamel are reduced, tooth health is protected, the structure is simple, installation is convenient, the implementation effect is good, and popularization and application of products are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of electric toothbrushes, in particular to a pressure sensing structure of an electric toothbrush. Background Art

[0002] Traditional toothbrushes struggle to completely remove plaque, and improper brushing techniques can significantly reduce their cleaning effectiveness. Electric toothbrushes, on the other hand, utilize a high-speed vibration mechanism to rotate or vibrate the brush head to achieve effective cleaning. Experiments have shown that electric toothbrushes remove 38% more plaque than manual toothbrushes, and their cleaning power has been unanimously recognized by dental experts. Consequently, electric toothbrushes have become the toothbrush of choice for a growing number of people who prioritize oral health in recent years.

[0003] When an electric toothbrush is used to clean teeth, the pressure with which the user holds the electric toothbrush is one of the important factors affecting the degree of cleaning. The greater the pressure on the brush head, the better the cleaning effect. However, if the force is too great and the user cannot detect it, the excessive pressure coupled with the high-frequency sonic vibration and friction of the bristles may cause damage to the teeth and wear of the enamel, leading to bleeding gums, wedge-shaped wear of teeth, and other conditions that damage the health of teeth and gums. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pressure sensing structure of an electric toothbrush in view of the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a pressure sensing structure of an electric toothbrush, including a main body, on which a brush head unit is provided, the main body including an outer shell and a prompt unit provided on the top of the outer shell, an extrusion unit connected to the brush head unit is provided in the outer shell, and a control unit in contact with the extrusion unit is also provided in the outer shell, and the prompt unit and the control unit are electrically connected; when the brush head unit is subjected to excessive pressure, the extrusion unit squeezes the control unit, the resistance value of the control unit changes, and the control unit transmits current to the prompt unit to issue a reminder.

[0006] Preferably, the prompt unit includes a top cover and an outer cover arranged in the top cover, the outer cover includes an integrally formed paint spraying part and a transparent part, the paint spraying part is arranged above the transparent part, and a plurality of hooks are provided on the bottom of the transparent part extending downward.

[0007] Preferably, a light assembly is provided below the transparent portion, the light assembly is arranged in a ring around the control unit and the outer cover, the light assembly is fixedly installed below the transparent portion through a hook, and the light assembly and the transparent portion cooperate to emit a light prompt effect to the outside world.

[0008] Preferably, the control unit includes a movement, on which is provided an electric control board, on which is provided a circuit board that is in contact with the extrusion unit, on which is provided a micro-strain sensor for generating current by changing the resistance value, and on which is provided a conductive needle that is in contact with the lighting component.

[0009] Preferably, the extrusion unit includes an extrusion portion and an extrusion piece provided on the extrusion portion, the extrusion portion and the brush head unit are connected via a connecting rod, and the top of the extrusion piece is in contact connection with the circuit board.

[0010] Preferably, the outer cover is provided with a double-layer waterproof structure, the double-layer waterproof structure includes an inner waterproof unit and an outer waterproof unit, the inner waterproof unit includes a first sealing ring, and the outer waterproof unit includes a second sealing ring; the first sealing ring is arranged between the outer cover and the inner wall of the shell, and the second sealing ring is arranged between the outer cover and the inner wall of the top cover; the first sealing ring is arranged near the bottom of the transparent part, and the second sealing ring is arranged at the junction of the paint spraying part and the transparent part.

[0011] Preferably, the brush head unit is provided with a pressure sensing module that cooperates with the electric control board for electrical induction. When the pressure sensing module is subjected to excessive pressure, the signal is transmitted to the electric control board, and the electric control board controls the prompt unit to start through the conductive needle.

[0012] Preferably, a sound component is provided at any position of the outer cover, and the sound component is electrically connected to the control unit. After the control unit receives the signal, the control unit controls the sound component to emit a reminder sound.

[0013] Compared with the existing technology, the advantages of the present invention are: through the cooperation of the electric toothbrush head and the squeezing unit, a signal is transmitted to the electronic control board when subjected to excessive pressure. The electronic control board directly controls the start-up of the light component through the conductive needle, so that the light component emits a light prompt to remind the user that the pressure of the handheld electric toothbrush is too great, thereby reducing damage to the teeth and wear of the enamel, protecting the health of the teeth, having a simple structure, easy installation, and good implementation effect, which is conducive to the promotion and application of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the utility model;

[0016] Figure 3 This utility model is attached Figure 2 A schematic diagram of the partially enlarged structure of the middle part;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 5 This utility model is attached Figure 4 A schematic diagram of the partially enlarged structure of B in the middle;

[0019] Figure 6 It is a structural diagram of the utility model;

[0020] Figure 7 This utility model is attached Figure 6 Schematic diagram of the partially enlarged structure of C in the middle;

[0021] Figure 8 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 9 This utility model is attached Figure 8 A schematic diagram of the partially enlarged structure of D in the middle;

[0023] Figure 10 It is a structural diagram of embodiment 2 of the present utility model.

[0024] Figure markings: 1. Brush head unit; 2. Shell; 3. Top cover; 4. Outer cover; 5. Paint spraying part; 6. Transparent part; 7. Hook body; 8. Light assembly; 9. Movement; 10. Electronic control board; 11. Circuit board; 12. Micro strain sensor; 13. First sealing ring; 14. Second sealing ring; 15. Conductive needle; 16. Extrusion part; 17. Extrusion part; 18. Connecting rod; 19. Pressure sensing module. DETAILED DESCRIPTION

[0025] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0026] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] Moreover, some of the above-mentioned terms may be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For ordinary technicians in this field, the specific meanings of these terms in this utility model can be understood according to the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal connections between two devices, elements, or components. The connection methods discussed herein are prior art and are common knowledge to those skilled in the art without modification. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. Example 1

[0030] like Figures 1 to 9 As shown, the utility model provides a pressure sensing structure of an electric toothbrush, including a main body, on which a brush head unit 1 is provided; specifically, the main body includes a shell 2 and a prompt unit provided on the top of the shell 2, a squeezing unit connected to the brush head unit 1 is provided in the shell 2, and a control unit in contact with the squeezing unit is also provided in the shell 2, and the prompt unit and the control unit are electrically connected; specifically, when the brush head unit 1 is subjected to excessive pressure, the squeezing unit squeezes the control unit, the resistance value of the control unit changes, and the control unit transmits current to the prompt unit to issue a reminder.

[0031] The prompt unit includes a top cover 3 and an outer cover 4 arranged inside the top cover 3, and the outer cover 4 includes an integrally formed paint spraying part 5 and a transparent part 6; specifically, the paint spraying part 5 is arranged above the transparent part 6, and a plurality of hooks 7 are extended downward from the bottom of the transparent part 6.

[0032] A light assembly 8 is provided below the transparent portion 6 and is arranged in a ring around the control unit and the outer cover 4. Specifically, the light assembly 8 is fixedly installed below the transparent portion 6 through a hook 7. The light assembly 8 and the transparent portion 6 cooperate to emit a light prompt effect to the outside world.

[0033] The control unit includes a movement 9, on which an electric control board 10 is provided; specifically, the electric control board 10 is provided with a circuit board 11 that is in contact with the extrusion unit, and the circuit board 11 is provided with a micro-strain sensor 12 for generating current by changing the resistance value. The electric control board 10 is also provided with a conductive pin 15 that is in contact with the lighting component 8 for electrical cooperation.

[0034] The extrusion unit includes an extrusion portion 16 and an extrusion member 17 provided on the extrusion portion 16. Specifically, the extrusion portion 16 and the brush head unit 1 are connected via a connecting rod 18. The top of the extrusion member 17 is in contact with the circuit board 11. The extrusion member 17 is made of an insulating material, such as silicone.

[0035] The outer cover 4 is provided with a double-layer waterproof structure, which includes an inner waterproof unit and an outer waterproof unit. The inner waterproof unit includes a first sealing ring 13, and the outer waterproof unit includes a second sealing ring 14; specifically, the first sealing ring 13 is arranged between the outer cover 4 and the inner wall of the outer shell 2, and the second sealing ring 14 is arranged between the outer cover 4 and the inner wall of the top cover 3; the first sealing ring 13 is arranged near the bottom of the transparent part 6, and the second sealing ring 14 is arranged at the junction of the paint spraying part 5 and the transparent part 6.

[0036] The working principle of the present utility model is as follows: when a user holds an electric toothbrush to brush his teeth, and the squeezing force of the brush head unit 1 on the teeth is too large, the connecting rod 18 connecting the brush head unit 1 and the squeezing unit rotates, and the end of the connecting rod 18 away from the brush head unit 1 rotates toward the electric control board 10, so that the squeezing unit is squeezed toward the electric control board 10 and squeezed with the electric control board 10. Specifically, the squeezing piece 17 on the squeezing part 16 squeezes the circuit board 11 on the electric control board 10, and the micro-strain sensor 12 on the circuit board 11 is squeezed and deformed. The resistance value of the micro-strain sensor 12 changes, generating current, and transmitting the current to the conductive needle 15 through the electric control board 10. The conductive needle 15 transmits electricity to the light component 8, triggering the light component 8 that is electrically connected to the conductive needle 15 to emit a light reminder. The light emitted by the light is sent to the outside through the transparent part 6 on the outer cover 4, so that the user can know it, thereby reducing the squeezing force of the brush head unit 1 on the teeth when brushing.

[0037] The advantages of the present invention are that: through the cooperation of the electric toothbrush head and the squeezing unit, a signal is transmitted to the electronic control board 10 when subjected to excessive pressure. The electronic control board 10 directly controls the lighting component 8 to start through the conductive needle 15, so that the lighting component 8 emits a light prompt to remind the user that the pressure of the handheld electric toothbrush is too great, thereby reducing damage to the teeth and wear of the enamel, protecting the health of the teeth, having a simple structure, easy installation, and good implementation effect, which is conducive to the promotion and application of the product. Example 2

[0038] like Figure 10As shown, unlike Example 1, this embodiment is equipped with a pressure-sensing module 19 that electrically senses and cooperates with the electronic control board 10. Specifically, when the pressure sensing module 19 is subjected to excessive pressure and the pressure detected by the pressure sensing module 19 exceeds a predetermined value, the pressure sensing module 19 transmits a signal to the electronic control board 10, which then activates the prompt unit via the conductive pins 15. The specific predetermined value is mainly based on the test results of professional and authoritative testing institutions and will not be elaborated on in detail. The rest of the structure is the same as Example 1. Example 3

[0039] Unlike Example 1, in this embodiment, a sound component is provided at any position of the outer cover 4; specifically, the sound component is electrically connected to the control unit, and after the control unit receives a signal, the control unit controls the sound component to emit a reminder sound. The other structures are the same as in Example 1.

[0040] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, described in this specification, unless otherwise inconsistent.

[0041] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, and bonding in the existing technology, which will not be described in detail here.

[0042] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scope based on the concept of the present invention. The content of this specification should not be understood as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pressure sensing structure for an electric toothbrush, comprising a main body with a brush head unit provided thereon, characterized in that: The main body includes a shell and a prompt unit arranged on the top of the shell. A squeezing unit connected to the brush head unit is provided in the shell. A control unit in conflict with the squeezing unit is also provided in the shell. The prompt unit and the control unit are electrically connected. When the brush head unit is subjected to excessive pressure, the squeezing unit squeezes the control unit, the resistance value of the control unit changes, and the control unit transmits current to the prompt unit to issue a reminder.

2. The pressure sensing structure of an electric toothbrush according to claim 1, characterized in that: The prompt unit includes a top cover and an outer cover arranged in the top cover. The outer cover includes an integrally formed paint spraying part and a transparent part. The paint spraying part is arranged above the transparent part. A plurality of hooks are extended downward from the bottom of the transparent part.

3. The pressure sensing structure of an electric toothbrush according to claim 2, characterized in that: A light assembly is provided below the transparent portion and is arranged in a ring around the control unit and the outer cover. The light assembly is fixedly installed below the transparent portion through a hook. The light assembly and the transparent portion cooperate to emit a light prompt effect to the outside world.

4. The pressure sensing structure of an electric toothbrush according to claim 3, characterized in that: The control unit includes a movement, on which is provided an electric control board, on which is provided a circuit board that is in contact with the extrusion unit, on which is provided a micro-strain sensor for generating current by changing the resistance value, and on which is provided a conductive pin that is in contact with the lighting component.

5. The pressure sensing structure of an electric toothbrush according to claim 4, characterized in that: The extrusion unit includes an extrusion portion and an extrusion piece arranged on the extrusion portion. The extrusion portion and the brush head unit are connected through a connecting rod, and the top of the extrusion piece is in contact with the circuit board.

6. The pressure sensing structure of an electric toothbrush according to claim 2, characterized in that: The outer cover is provided with a double-layer waterproof structure, which includes an inner waterproof unit and an outer waterproof unit. The inner waterproof unit includes a first sealing ring, and the outer waterproof unit includes a second sealing ring. The first sealing ring is arranged between the outer cover and the inner wall of the shell, and the second sealing ring is arranged between the outer cover and the inner wall of the top cover. The first sealing ring is arranged near the bottom of the transparent part, and the second sealing ring is arranged at the junction of the paint spraying part and the transparent part.

7. The pressure sensing structure of an electric toothbrush according to claim 4, characterized in that: The brush head unit is provided with a pressure sensing module that cooperates with the electric control board for electrical induction. When the pressure sensing module is subjected to excessive pressure, it transmits a signal to the electric control board, and the electric control board controls the prompt unit to start through the conductive needle.

8. The pressure sensing structure of an electric toothbrush according to claim 2, characterized in that: A sound component is provided at any position of the outer cover, and the sound component is electrically connected to the control unit. After the control unit receives a signal, the control unit controls the sound component to emit a reminder sound.

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