Brush handle member and electric toothbrush

Abstract

This utility model discloses a brush handle component and an electric toothbrush. The brush handle component includes a housing, a drive assembly, and a sensing assembly. The housing defines a receiving cavity; the drive assembly is divided into a first part and a second part connected along a first direction. The first part extends outside the receiving cavity and is used to connect the brush head. The drive assembly drives the brush head to move. The second part is disposed within the receiving cavity and has a gap between it and the housing along a second direction, which intersects the first direction. The sensing assembly is located within the gap. The force applied to the first part along the second direction can be transmitted to the second part, causing the second part to press against the sensing assembly along the second direction. The sensing assembly senses the pressure applied by the second part. The brush handle component of this utility model achieves efficient space utilization and improves the detection effect of the sensing assembly. The electric toothbrush with the above-described brush handle component also has the above-described advantages.

Description

Technical Field

[0001] This utility model relates to the technical field of electric toothbrushes, and more particularly to a brush handle component and an electric toothbrush. Background Technology

[0002] When using an electric toothbrush, the pressure applied to the brush head affects its cleaning effectiveness. However, excessive pressure can damage the gums and oral cavity. Therefore, electric toothbrushes need to be equipped with sensors to alert the user when excessive pressure is applied.

[0003] In related technologies, Chinese Patent Application No. 202311511251.1 discloses an electric toothbrush pressure sensing device and an electric toothbrush. This sensing device uses a pin at the bottom of the motor. When the brush head contacts the gum line and causes displacement, the brush head, through a first part and the motor, lifts the pin, causing it to press against the sensing component. The sensing component detects the pressure and generates a warning when the pressure is too high. However, the pin requires internal space, which may limit the design of other functional modules or force the toothbrush to be larger. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a brush handle component that enables efficient use of space and improves the detection effect of the sensing component.

[0005] This utility model also proposes an electric toothbrush having the above-mentioned brush handle component.

[0006] The brush handle component according to a first aspect of the present invention includes a housing, a drive assembly, and a sensing assembly.

[0007] The housing defines a receiving cavity; the drive assembly is divided into a first part and a second part connected along a first direction, the first part extends out of the receiving cavity for connecting a brush head, the drive assembly is used to drive the brush head to move, the second part is disposed in the receiving cavity and has a gap between it and the housing along a second direction, the second direction intersecting the first direction; the sensing component is located within the gap.

[0008] The force applied to the first part along the second direction can be transmitted to the second part, so that the second part presses against the sensing component along the second direction. The sensing component is used to sense the pressure applied by the second part.

[0009] The brush handle component according to the embodiments of this utility model has at least the following beneficial effects: by disposing the sensing component between the inner wall of the housing and the side wall of the second part, the sensing component is located in the gap between the housing and the second part. After the first part is subjected to an external force and the second part is displaced, the sensing component can be pressed against the second part to detect pressure. This not only reduces the space occupied by the sensing component and realizes efficient utilization of the internal space of the housing, but also improves the detection speed of the sensing component.

[0010] According to some embodiments of the present invention, the second part has a first side and a second side opposite to each other along the second direction, wherein: the first side and the housing have the gap along the second direction, the sensing component is located between the first side and the housing, and the direction in which the second part presses against the sensing component is the same as the force direction of the first part;

[0011] Alternatively, the second side and the housing have the gap along the second direction, the sensing component is located between the second side and the housing, and the direction in which the second part presses against the sensing component is opposite to the direction of force on the first part.

[0012] According to some embodiments of the present invention, the sensing component includes a sensor and a conductive member. The conductive member defines a receiving cavity on a side facing away from the second part in a second direction. The sensor is disposed in the receiving cavity. The inner wall of the conductive member extends along a first direction to form a limiting part. The limiting part partially blocks the receiving cavity along a second direction. The sensor abuts against the limiting part.

[0013] According to some embodiments of the present invention, the conductive member further includes a supporting portion, which is disposed opposite to the outer wall of the second portion along a second direction, and the thickness of the supporting portion is greater than the thickness of both sides of the conductive member.

[0014] According to some embodiments of the present invention, the brush handle component further includes an elastic member, which abuts against the side of the second part facing the sensing component. The elastic member is disposed between the housing and the second part, and the second part is configured to squeeze the elastic member when it presses against the sensing component in a second direction.

[0015] According to some embodiments of the present invention, the housing further includes a bracket, which is disposed in the receiving cavity and covers the side wall of the second part. The bracket has a mounting position that is connected to the side wall of the bracket, and the sensing component is connected to the mounting position.

[0016] According to some embodiments of the present invention, the second part defines an installation cavity with an opening, the elastic member is disposed in the installation cavity, the bracket extends along a first direction to form a support portion, the support portion blocks the opening along a second direction and abuts against the elastic member.

[0017] According to some embodiments of the present invention, the second part includes a driving member and a cover, the cover being connected to the inner wall of the housing, the cover including a limiting structure abutting against the driving member, and the brush handle member further including an elastic member abutting against the cover and the housing.

[0018] According to some embodiments of the present invention, the receiving cavity is connected to the housing to form an installation port, and the brush handle component further includes a first buffer member, which is disposed in the receiving cavity and located at the installation port, and the first buffer member is located between the drive assembly and the housing.

[0019] An electric toothbrush according to a second aspect of the present invention includes a brush head and a handle member as described in any of the above embodiments.

[0020] The first part of the brush handle component is connected to the brush head. The sensing component communicates with the driving component. The brush head is used to receive external force to switch the second part to a first state and a second state. In the first state, the second part drives the brush head to work, and the force on the brush head is less than a preset pressure. In the second state, the second part stops working, and the force on the brush head is greater than the preset pressure.

[0021] The electric toothbrush according to the present invention has at least the following beneficial effects: when the brush head contacts the gums and oral cavity, the brush head is subjected to pressure, which drives the second part to squeeze the sensing component through the first part. The sensing component can detect the magnitude of the pressure on the brush head, thereby determining whether the brushing pressure is greater than the preset pressure, so that the second part switches between the first state and the second state, thereby protecting the gums and oral cavity.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the pressure-sensitive device in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the pressure-sensitive device in an embodiment of the present invention;

[0026] Figure 3 As an embodiment of this utility model Figure 1 Sectional view at point AA;

[0027] Figure 4 As an embodiment of this utility model Figure 3 Enlarged view of point B;

[0028] Figure 5 As an embodiment of this utility model Figure 3 Enlarged view of point C;

[0029] Figure 6 This is a schematic diagram of an electric toothbrush in an embodiment of the present utility model;

[0030] Figure 7 As an embodiment of this utility model Figure 6 Enlarged view of point D.

[0031] Figure label:

[0032] Brush handle component 100;

[0033] Housing 101; Receiving cavity 102; Mounting port 103; Bracket 104; Mounting position 105; Support part 106;

[0034] Drive assembly 107; First part 108; Second part 109; First side 110; Second side 111; Drive member 112; Cover 113; Mounting cavity 114; Extension 115; Opening 116; Limiting structure 117;

[0035] Sensing component 118; Conducting element 119; Receiving cavity 120; Limiting part 121; Supporting part 122; Sensor 123; Control board 124; Elastic element 125; First buffer element 126; Limiting element 127;

[0036] Electric toothbrush 200; brush head 201; second buffer 202. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. 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 one or more embodiments or examples.

[0042] The brush handle component of the first aspect embodiment and the electric toothbrush of the second aspect embodiment of the present invention will be described below with reference to the accompanying drawings. It should be noted that, for ease of understanding and description, the embodiments of the present invention are illustrated with the vertical direction as the first direction and the horizontal direction as the second direction, with the first and second directions intersecting. Furthermore, for ease of description in conjunction with the accompanying drawings, the leftward direction is indicated as the force direction of the first end and the force direction of the brush head.

[0043] This utility model embodiment provides a brush handle component 100, see reference. Figures 1 to 4As shown, the brush handle component 100 includes a housing 101, a drive assembly 107, and a sensing assembly 118. The housing 101 defines a receiving cavity 102 for accommodating the drive assembly 107, the sensing assembly 118, and other components. A mounting port 103 is formed at the end of the housing 101 through the receiving cavity 102. The drive assembly 107 includes a first part 108 and a second part 109 connected in the vertical direction. In this embodiment, the first part 108 is a drive shaft, and the second part 109 is a drive component (e.g., the main body of a motor). The second part 109 drives the first part 108 to rotate for operation. The first part 108 extends out of the receiving cavity 102 through the mounting port 103 of the housing 101 and is used to connect the brush head 201. The second part 109 is disposed in the receiving cavity 102, and a gap exists between the second part 109 and the housing 101 in the horizontal direction, with the two spaced apart. The sensing component 118 is disposed in the receiving cavity 102 and is located in the gap between the second part 109 and the housing 101.

[0044] Specifically, in one example, see Figures 1 to 4 As shown, the second part 109 is movably disposed in the receiving cavity 102. When the first part 108 is subjected to an external force, the direction of the external force is from right to left. The first part 108 will cause the second part 109 to be displaced relative to the housing 101 in a leftward direction. At this time, the second part 109 will exert pressure on the sensing component 118, and the sensing component 118 will detect the pressure applied by the second part 109. In this embodiment, the sensing component 118 and the driving component 107 are communicatively connected. The sensing component 118 will compare the detected pressure with a preset pressure of the sensing component 118. If the pressure exceeds the preset pressure, the sensing component 118 will cut off the power to the second part 109 and stop the operation of the second part 109, thereby achieving the protection of the gums and oral cavity.

[0045] In another embodiment, the brush handle component 100 also includes a prompting element. When the pressure detected by the sensing component 118 exceeds a preset pressure, the prompting element will provide a prompting effect to the user. The prompting effect includes, but is not limited to, flashing lights, light changes, or prompting sounds.

[0046] The brush handle component 100 of this embodiment of the invention has a sensing component 118 disposed between the inner wall of the housing 101 and the side wall of the second part 109, such that the sensing component 118 is located in the gap between the housing 101 and the second part 109. After the first part 108 is subjected to an external force and causes the second part 109 to be displaced, the sensing component 118 can be pressed against the second part 109 to detect pressure. This not only reduces the space occupied by the sensing component 118 and realizes efficient utilization of the internal space of the housing 101, but also improves the detection speed of the sensing component 118.

[0047] In some embodiments, see Figure 3 and Figure 4 As shown, the second part 109 has a first side 110 and a second side 111 opposite each other in the left-right direction. In one example, the gap between the first part 108 and the housing 101 is located between the first side 110 and the housing 101. The housing 101 includes a limiting member 127, which abuts against the bottom of the second side 111. In this arrangement, the positions of the first part 108 and the mounting port 103 are spaced apart, that is, the first part 108 does not contact the housing 101 at the mounting port 103; or a deformable component, such as a component made of rubber, silicone, or sponge, is provided between the first part 108 and the mounting port 103. When the first part 108 is subjected to leftward pressure, the first part 108 will displace to the left and transmit the pressure to the second part 109. At this time, since the second side 111 is abutted by the limiting member 127 of the housing 101, and the first side 110 is spaced apart from the housing 101, the second part 109 will be displaced in the same direction (to the left) as the first part 108 under pressure to squeeze the sensing component 118. In this embodiment, this layout can reduce the transmission distance between the first part 108 and the sensing component 118, thereby improving the sensing speed of the sensing component 118.

[0048] In another embodiment (not shown in the figure), the gap between the first part 108 and the housing 101 is located between the second side 111 and the housing 101. In this arrangement, the first part 108 contacts the housing 101, for example, by connecting to the housing 101 at the mounting port 103, thereby forming a lever structure. When the first part 108 is subjected to a leftward pressure, the first part 108 will displace to the left and transmit the pressure to the second part 109. At this time, the contact point between the housing 101 and the first part 108 becomes the fulcrum of the lever. When the first part 108 displaces to the left, the second part 109, under the action of the fulcrum, will displace in the opposite direction (to the right) to the direction of movement of the first part 108 to squeeze the sensing component 118, thereby enabling the sensing component 118 to perform pressure detection on the second side 111.

[0049] In some embodiments, the sensing assembly 118 includes a conductor 119 and a sensor 123. The conductor 119 is disposed between the second part 109 and the sensor 123, and the conductor 119 is connected to the side of the sensor 123 opposite to the housing 101. In this embodiment, see [reference needed]. Figure 3As shown, the conductive element 119 and the second part 109 are spaced apart, allowing the second part 109 some room to move. Since the second part 109 is a driving structure, it will generate high-frequency vibrations during operation. By spaced the conductive element 119 and the second part 109, the contact between them can be reduced, decreasing wear caused by vibration and extending service life. In other embodiments, the conductive element 119 may also abut against the outer wall of the second part 109. When the second part 109 displaces relative to the housing 101, it can quickly compress the conductive element 119 to transmit pressure to the sensor 123.

[0050] In this embodiment, the conductive element 119 is pressure-sensitive silicone. Because pressure-sensitive silicone has good elasticity and deformation capacity, it can evenly distribute pressure when subjected to force. Therefore, using pressure-sensitive silicone ensures that the pressure is evenly distributed on the surface of the sensor 123, avoiding measurement errors caused by localized stress concentration, thereby improving the accuracy and consistency of the sensor 123. Furthermore, pressure-sensitive silicone has a certain degree of elasticity, which can absorb and disperse impact forces. In devices such as the electric toothbrush 200, the pressure applied by the user may fluctuate significantly. Using pressure-sensitive silicone as a buffer layer can effectively reduce the direct impact of pressure fluctuations on the sensor 123 and its internal components. In other embodiments, the conductive element 119 can also be an elastic component such as an elastic metal sheet.

[0051] In existing technologies, the brush handle component 100 applies pressure to the sensor 123 via a pin. However, this method results in physical contact between the pin and the sensor 123, which can easily lead to wear during long-term, high-frequency use, such as pin deformation or oxidation of switch contacts, resulting in decreased sensitivity or even failure. Compared to existing technologies, this embodiment provides a conductive member 119 between the sensor 123 and the second part 109. By transmitting pressure through the conductive member 119, contact between the sensor 123 and the second part 109 can be avoided, reducing the possibility of damage to the sensor 123 due to hard contact and reducing wear on the sensor 123, thereby improving the detection effect and service life of the brush handle component 100.

[0052] Furthermore, in some embodiments, the sensing component 118 further includes a control board 124, which is connected to the housing 101 and electrically connected to the sensor 123 and the second part 109. The control board 124 can receive the signal transmitted by the sensor 123 and control the opening and closing of the second part 109 according to the signal.

[0053] In some embodiments, see Figure 3 and Figure 4As shown, one side of the conductive member 119 is used to abut against the second part 109 to transmit external force, and the other side is used to connect to the sensor 123. The side of the conductive member 119 facing away from the second part 109 defines a receiving cavity 120, in which the sensor 123 is disposed. Furthermore, the inner wall of the conductive member 119 extends towards the central axis (vertically) of the receiving cavity 120 to form a limiting part 121, which partially blocks the receiving cavity 120 in the left-right direction. When the sensor 123 is located in the receiving cavity 120, the bottom of the sensor 123 rests on the limiting part 121. The limiting part 121 restricts the movement of the sensor 123, preventing separation between the sensor 123 and the conductive member 119 and affecting pressure detection. Furthermore, by providing the receiving cavity 120, the space occupied by the sensor 123 can be reduced, thereby reducing the assembly volume of the sensing assembly 118 and further achieving efficient utilization of the space in the brush handle component 100. Meanwhile, when the transmission member 119 receives the extrusion force from the second part 109, the transmission member 119 will also exert extrusion force on the sensor 123. The limiting part 121 provides additional support for the sensor 123. The limiting part 121 can prevent the sensor 123 from shifting or loosening when it is extruded, thus ensuring the long-term stable operation of the sensor 123.

[0054] Furthermore, in some embodiments, see [reference] Figure 3 and Figure 4 As shown, the conductive member 119 also includes a supporting portion 122, which is disposed opposite to the outer wall of the second portion 109 in a leftward direction. When the second portion 109 is displaced relative to the housing 101, the supporting portion 122 contacts the second portion 109 to transmit pressure to the sensor 123. In this embodiment, the supporting portion 122 is located in the middle of the conductive member 119, and the thickness of the supporting portion 122 is greater than the thickness of the two sides of the conductive member 119. Specifically, when the user applies external force to the first portion 108, the first portion 108 will drive the second portion 109 to move in a leftward direction, and the second portion 109 will press against the supporting portion 122. Because the thickness of the supporting portion 122 is greater than the thickness of both sides of the conductive member 119, the supporting portion 122 can preferentially contact the second portion 109. At this time, the supporting portion 122 needs to withstand all the pressure of the second portion 109, thereby accurately transmitting the pressure to the sensor 123, thus improving the response speed of the conductive member 119 to pressure changes and improving the detection accuracy of the sensor 123. Furthermore, in this embodiment, since the conductive member 119 is pressure-sensitive silicone, when the pressure on the first portion 108 disappears, the supporting portion 122 can help the second portion 109 recover its deformation, reducing the amount of deformation of the second portion 109.

[0055] In some embodiments, see Figure 3 and Figure 5As shown, the brush handle component 100 also includes an elastic element 125, which is located between the housing 101 and the second part 109. One end of the elastic element 125 abuts against the side of the second part 109 facing the sensing component 118, i.e., the left side of the second part 109, and the other end abuts against the housing 101. When the first part 108 causes the second part 109 to displace relative to the housing 101, the second part 109 will compress the elastic element 125 in a leftward direction, putting the elastic element 125 into a compressed state. Specifically, when the user applies pressure to the first part 108, the second part 109 will compress the sensing component 118 under the action of the first part 108, transmitting the pressure to the sensing component 118. At the same time, the second part 109 will compress the elastic element 125 in a leftward direction during movement. Since the elastic element 125 has a tendency to return to its initial state when subjected to force, the elastic element 125 can provide a buffering effect for the deformation of the second part 109, reducing the impact force on the second part 109 when subjected to force. Furthermore, when the pressure applied to the first part 108 disappears, the elastic element 125 can provide a reaction force to the second part 109, helping the second part 109 to quickly reset and improving the response speed of the brush handle component 100.

[0056] Further, see Figures 3 to 5 As shown, the housing 101 also includes a bracket 104, which is disposed in the receiving cavity 102 and connected to the inner wall of the housing 101. The bracket 104 has a hollow structure inside, and the second part 109 is disposed in the hollow structure of the bracket 104, with the bracket 104 covering the second part 109. Since the brush handle component 100 generates high-frequency vibrations during operation, the covering of the bracket 104 ensures that the circumferential movement of the second part 109 is guided and restricted, preventing deviation or shaking.

[0057] Furthermore, see Figure 3 and Figure 4 As shown, the side wall of the bracket 104 is also provided with a mounting position 105, which is connected to the side wall of the bracket 104. The sensing component 118 is connected to the mounting position 105. Specifically, in the leftward direction, the mounting position 105 penetrates the inner and outer walls of the bracket 104, and the sensing component 118 is installed and fixed in the mounting position 105. The bracket 104 and the mounting position 105 can limit the axial (vertical) movement of the sensing component 118, so that the sensing component 118 can only be displaced in the leftward direction through the second part 109, thereby ensuring that the pressure can be accurately transmitted to the sensing component 118, thereby enhancing the sensitivity and measurement accuracy of the brush handle component 100.

[0058] Furthermore, in some embodiments, see [reference] Figure 3 and Figure 5As shown, the outer wall of the second part 109 defines a mounting cavity 114. The mounting cavity 114 has an opening 116 on the side facing the sensing component 118. The elastic member 125 is accommodated in the mounting cavity 114 through the opening 116, such that one end of the elastic member 125 abuts against the bottom wall of the mounting cavity 114, which is a wall surface opposite to the opening 116 in a leftward direction. In this way, by providing a mounting cavity 114, space can be provided for the elastic member 125, thereby reducing the space required for the installation of the elastic member 125 and further reducing the overall volume of the brush handle component 100. At the same time, the mounting cavity 114 can also prevent the elastic member 125 from shifting during movement, improving the stability of the elastic member 125's movement.

[0059] Furthermore, in this embodiment, the sidewall of the bracket 104 extends upward to form a support portion 106, which supports the other end of the elastic member 125. When the elastic member 125 is accommodated in the mounting cavity 114, the support portion 106 partially blocks the opening 116 of the mounting cavity 114, preventing the elastic member 125 from detaching from the mounting cavity 114 and providing stable support for the elastic member 125, ensuring that the elastic member 125 will not shift when subjected to force.

[0060] In some embodiments, see Figure 3 As shown, the second part 109 also includes a driving member 112 and a cover 113. In this embodiment, the driving member 112 is a driving component such as a motor. The cover 113 is connected to the inner wall of the housing 101 and covers the driving member 112. The cover 113 includes a limiting structure 117, which abuts against the driving member 112 to limit the movement of the driving member 112. Specifically, in this embodiment, the limiting structure 117 of the cover 113 has a stepped structure, that is, the cover 113 has multiple outer wall surfaces, there is a height difference between mutually parallel outer wall surfaces, and there is a height difference between two adjacent parallel outer wall surfaces in the vertical direction, or a width difference in the horizontal direction. After the cover 113 is placed on the drive member 112, the stepped limiting structure 117 can limit the circumferential movement of the drive member 112, preventing it from shifting during vibration and contacting the inner wall of the housing 101, thus avoiding wear on the inner wall of the housing 101 and the outer wall of the drive member 112. Furthermore, compared to a rectangular structure of the same length, width, and height, the stepped structure allows the cover 113 to occupy less space, thereby reducing the space required for assembling the drive assembly 107. The remaining space can be used to install components such as the elastic element 125, for example, by installing the elastic element 125 in the drop between two adjacent outer wall surfaces, thereby further achieving efficient utilization of the internal space of the brush handle component 100.

[0061] Furthermore, the brush handle component 100 also includes an elastic element 125 connected to the cover 113. Specifically, the cover 113 defines a mounting cavity 114 with an opening 116. The bottom wall of the mounting cavity 114 extends to the left to form an extension 115. Note that the bottom wall is a wall surface opposite to the opening 116. The elastic element 125 is fitted onto the extension 115. The extension 115 prevents the elastic element 125 from shifting within the mounting cavity 114 due to vibrations from the drive member 112. Furthermore, the extension 115 provides guidance during the extension and retraction of the elastic element 125, improving its movement efficiency.

[0062] In some embodiments, see Figure 2 and Figure 3 As shown, the receiving cavity 102 is connected to the housing 101, which has a mounting opening 103. A portion of the first part 108 extends out of the receiving cavity 102 from the mounting opening 103. The brush handle member 100 also includes a first buffer 126, which is housed in the receiving cavity 102 and positioned at the mounting opening 103. Furthermore, the first buffer 126 is located between the second part 109 and the housing 101, with one end connected to the second part 109 and the other end connected to the housing 101 in the vertical direction. Specifically, when the second part 109 drives the first part 108 to operate, the second part 109 generates high-frequency vibrations. The first buffer 126 separates the second part 109 from the housing 101, preventing wear from the vibrations of the second part 109 on both the housing 101 and the second part 109. Simultaneously, the first buffer 126 absorbs some of the vibrations of the second part 109, reducing the vibration of the brush handle member 100 during use and thus improving the user experience of the brush handle member 100. In this embodiment, the first buffer 126 is made of silicone material. In other embodiments, the first buffer 126 may also be made of sponge, or a material with cushioning properties such as resin.

[0063] This utility model embodiment also provides an electric toothbrush 200, see reference. Figures 1 to 7 As shown, the electric toothbrush 200 includes a brush head 201 and a handle member 100 as described in any of the above embodiments. A first part 108 extending into a receiving cavity 102 is connected to the brush head 201 to drive the brush head 201 to operate. The brush head 201 is used to receive external force during brushing. When the brush head 201 is subjected to external force, the brush head 201 will drive the first part 108 to move, causing the second part 109 to switch between a first state and a second state.

[0064] Specifically, in one example, during brushing, the brush head 201 experiences pressure from the mouth or gums. This causes the brush head 201 to deform and displace the first part 108, which in turn causes the second part 109 to displace, compressing the sensing component 118. This allows the sensing component 118 to detect the specific pressure value. The sensing component 118 communicates with the drive component 107. When the pressure on the brush head 201 is less than a preset pressure, the second part 109 is in a first state, operating normally and driving the brush head 201 to perform cleaning actions, allowing the user to brush their teeth normally with the electric toothbrush 200. When the pressure on the brush head 201 exceeds the preset pressure, the sensing component 118 immediately sends a command to stop the second part 109, which then enters a second state.

[0065] When the brush head 201 of the electric toothbrush 200 of this utility model comes into contact with the gums and oral cavity, the brush head 201 is subjected to pressure, which drives the second part 109 to squeeze the sensing component 118 through the first part 108. The sensing component 118 can detect the magnitude of the pressure on the brush head 201, thereby determining whether the brushing pressure is greater than the preset pressure, and causing the second part 109 to switch between the first state and the second state, so as to protect the gums and oral cavity and avoid damage to the gums and oral cavity caused by excessive force when brushing.

[0066] In this embodiment, the outer wall of the first part 108 is covered with a second buffer 202, which is housed inside the brush head 201. The second buffer 202 effectively absorbs and disperses the pressure on the brush head 201, preventing the first part 108 from deforming or being damaged due to excessive instantaneous impact. Furthermore, since the second part 109 generates high-frequency vibrations during the operation of the electric toothbrush 200, the second buffer 202 can isolate these vibrations, preventing them from being excessively transmitted to the brush head 201, thereby improving the user experience.

[0067] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A brush handle component, characterized in that, include: The shell defines the receiving cavity; The drive assembly is divided into a first part and a second part connected along a first direction. The first part extends out of the receiving cavity and is used to connect the brush head. The drive assembly is used to drive the brush head to move. The second part is disposed in the receiving cavity and has a gap with the housing along a second direction. The second direction intersects the first direction. The sensing component is located within the gap; The force applied to the first part along the second direction can be transmitted to the second part, so that the second part presses against the sensing component along the second direction. The sensing component is used to sense the pressure applied by the second part.

2. The brush handle component according to claim 1, characterized in that, The second part has a first side and a second side opposite to each other along the second direction, wherein: The first side and the housing have the gap along the second direction, the sensing component is located between the first side and the housing, and the direction in which the second part presses against the sensing component is the same as the direction of force on the first part. Alternatively, the second side and the housing have the gap along the second direction, the sensing component is located between the second side and the housing, and the direction in which the second part presses against the sensing component is opposite to the direction of force on the first part.

3. The brush handle component according to claim 1, characterized in that, The sensing component includes a sensor and a conductive member. The conductive member defines a receiving cavity on a side facing away from the second part in a second direction. The sensor is disposed in the receiving cavity. The inner wall of the conductive member extends along a first direction to form a limiting part. The limiting part partially blocks the receiving cavity along a second direction. The sensor abuts against the limiting part.

4. The brush handle component according to claim 3, characterized in that, The conductive member further includes a supporting portion, which is disposed opposite to the outer wall of the second portion along a second direction, and the thickness of the supporting portion is greater than the thickness of both sides of the conductive member.

5. The brush handle component according to claim 1, characterized in that, The brush handle component further includes an elastic element that abuts against the side of the second part facing the sensing component. The elastic element is disposed between the housing and the second part, and the second part is configured to compress the elastic element when it presses against the sensing component in a second direction.

6. The brush handle component according to claim 5, characterized in that, The housing also includes a bracket disposed in the receiving cavity and covering the side wall of the second part. The bracket has a mounting position that is connected to the side wall of the bracket, and the sensing component is connected to the mounting position.

7. The brush handle component according to claim 6, characterized in that, The second part defines an installation cavity with an opening, the elastic member is disposed in the installation cavity, the bracket extends along a first direction to form a support portion, the support portion blocks the opening along a second direction and abuts against the elastic member.

8. The brush handle component according to claim 1, characterized in that, The second part includes a drive member and a cover. The cover is connected to the inner wall of the housing. The cover includes a limiting structure that abuts against the drive member. The brush handle member also includes an elastic member that abuts against the cover and the housing.

9. The brush handle component according to claim 1, characterized in that, The receiving cavity is connected to the housing to form an installation port. The brush handle component also includes a first buffer member, which is disposed in the receiving cavity and located at the installation port. The first buffer member is located between the drive assembly and the housing.

10. An electric toothbrush, characterized in that, include: Brush head; The brush handle component as described in any one of claims 1 to 9, wherein the first part is connected to the brush head, the sensing component communicates with the driving component, and the brush head is used to receive external force to switch the second part to a first state and a second state, wherein in the first state, the second part drives the brush head to work, and the force on the brush head is less than a preset pressure; in the second state, the second part stops working, and the force on the brush head is greater than the preset pressure.

Images