Toothbrush handle and electric toothbrush

Abstract

The utility model discloses a toothbrush handle and an electric toothbrush, and the toothbrush handle comprises a shell, which is provided with a storage cavity and a light hole which are communicated with each other; the pressing piece is arranged in the light-transmitting hole, the pressing piece comprises a light-transmitting part, and the light-transmitting part can transmit light; the light guide part is arranged in the storage cavity; the light guide part is provided with a storage cavity, the light emitting part can emit light, the light emitting part is arranged in the storage cavity, the light guide part and the light emitting part are arranged and distributed in the first direction, the first direction is perpendicular to the thickness direction of the light guide part, and light emitted by the light emitting part can be emitted from the light transmitting part through the light guide part. The toothbrush handle disclosed by the utility model can be conveniently held by a user.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, and in particular to a toothbrush handle and an electric toothbrush. Background Technology

[0002] Among related technologies, electric toothbrushes are a modern oral hygiene tool that combines electric technology with the functions of traditional toothbrushes, cleaning teeth and the oral cavity through vibration or rotation of the brush head.

[0003] An electric toothbrush includes a handle and a brush head. The handle comprises a housing, battery, motor, button, and circuit board. The housing has a storage cavity containing the battery, motor, and circuit board. The circuit board is electrically connected to the motor and battery, allowing the motor to be started and stopped by pressing the button. In existing technology, after prolonged use, the battery of an electric toothbrush will be depleted, requiring the user to be prompted to recharge it. Typically, electric toothbrushes use an LED light to illuminate the button to alert the user. Specifically, a light guide film is positioned between the LED and the button; the light emitted by the LED passes through the light guide film and is then emitted from the button. The stacked arrangement of the button, light guide film, and LED occupies a large space, resulting in a larger diameter housing, making it inconvenient for the user to hold. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a toothbrush handle that is convenient for users to hold.

[0005] This utility model also proposes an electric toothbrush.

[0006] The toothbrush handle according to a first aspect of the present invention includes:

[0007] The casing has interconnected storage cavities and light-transmitting holes;

[0008] A pressing element is disposed in the light-transmitting hole, and the pressing element includes a light-transmitting part that is capable of transmitting light.

[0009] A light guide element is disposed in the storage cavity;

[0010] A light-emitting element capable of emitting light is disposed in the storage cavity. The light guide and the light-emitting element are arranged and distributed along a first direction, which is perpendicular to the thickness direction of the light guide. The light emitted by the light-emitting element can pass through the light guide and be emitted from the light-transmitting portion.

[0011] The toothbrush handle according to the embodiments of this utility model has at least the following beneficial effects: After the light guide and the light-emitting element are arranged and distributed along a first direction, the first direction is perpendicular to the thickness direction of the light guide. In the prior art, the light-emitting element is disposed below the light guide, that is, the light guide and the light-emitting element are arranged and distributed along the thickness direction of the light guide. This causes the light guide and the light-emitting element to occupy too much radial space inside the housing, thereby making the diameter of the housing larger and inconvenient for the user to hold. In this application, after the light guide and the light-emitting element are arranged in the first direction, they occupy less radial space inside the housing, thus eliminating the need to increase the diameter of the housing. In this way, the toothbrush handle can be held more conveniently by the user.

[0012] According to some embodiments of the present invention, the toothbrush handle includes a light guide portion and a protrusion portion, the protrusion portion being connected to the body portion and protruding relative to the body portion, the protrusion portion facing the light-transmitting portion.

[0013] According to some embodiments of the present invention, the toothbrush handle has a plurality of protrusions, including a first protrusion and a second protrusion. The distance between the first protrusion and the light-emitting element in the first direction is A, and the distance between the second protrusion and the light-emitting element in the first direction is B, where A < B. The number of the first protrusions is less than the number of the second protrusions.

[0014] According to some embodiments of the present invention, the toothbrush handle has a plurality of protrusions, including a first protrusion and a second protrusion. The distance between the first protrusion and the light-emitting element in the first direction is A, and the distance between the second protrusion and the light-emitting element in the first direction is B, where A < B. The volume of each first protrusion is smaller than the volume of each second protrusion.

[0015] According to some embodiments of the present invention, the toothbrush handle includes a light guide with a clearance hole, and the toothbrush handle further includes a connector and a circuit board. The connector is disposed in the clearance hole, and along the thickness direction of the light guide, both ends of the connector are respectively connected to the pressing member and the circuit board.

[0016] According to some embodiments of the present invention, the toothbrush handle includes a first light-emitting element and a second light-emitting element, and along the first direction, the first light-emitting element and the second light-emitting element are respectively located at both ends of the connector.

[0017] According to some embodiments of the present invention, the toothbrush handle further includes a circuit board, and the light guide is adhered to the circuit board.

[0018] According to some embodiments of the present invention, the toothbrush handle includes two light-blocking portions and a light-transmitting portion, wherein the light-transmitting portion surrounds and is connected to the edge of one of the light-blocking portions, and the other light-blocking portion surrounds and is connected to the edge of the light-transmitting portion.

[0019] According to some embodiments of the present invention, the toothbrush handle has a light-emitting surface facing the light guide.

[0020] The electric toothbrush according to a second aspect embodiment of the present invention includes:

[0021] Brush head;

[0022] The toothbrush handle as described in any one of the first aspect embodiments is connected to the brush head.

[0023] The electric toothbrush according to this utility model embodiment has at least the following beneficial effects: After the light guide and the light-emitting element are arranged along a first direction, the first direction is perpendicular to the thickness direction of the light guide. In the prior art, the light-emitting element is located below the light guide, that is, the light guide and the light-emitting element are arranged along the thickness direction of the light guide. This results in the light guide and the light-emitting element occupying too much radial space inside the housing, thus making the diameter of the housing larger and inconvenient for the user to hold. In this application, after the light guide and the light-emitting element are arranged in the first direction, they occupy less radial space inside the housing, thus eliminating the need to increase the diameter of the housing. In this way, the toothbrush handle can be easily held by the user. Furthermore, the electric toothbrush with this toothbrush handle is convenient for the user to use.

[0024] 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

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is an exploded schematic diagram of the toothbrush handle according to the first embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of a toothbrush handle according to some embodiments of the present invention;

[0028] Figure 3 This is a partial cross-sectional schematic diagram of a toothbrush handle according to some embodiments of the present invention;

[0029] Figure 4 This is a schematic diagram of a light guide component in a toothbrush handle according to some embodiments of the present invention;

[0030] Figure 5This is a schematic diagram of the pressing element in the toothbrush handle of some embodiments of the present invention;

[0031] Figure 6 This is an exploded schematic diagram of the toothbrush handle according to the second embodiment of the present invention.

[0032] Figure label:

[0033] Toothbrush handle 100, housing 200, storage cavity 210, light-transmitting hole 220, pressing part 300, light-transmitting part 310, light-shielding part 320, light guide part 400, body part 410, protrusion part 420, clearance hole 430, light-emitting part 500, light-emitting surface 510, connector 600, circuit board 700, adhesive layer 800. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Among related technologies, electric toothbrushes are a modern oral hygiene tool that combines electric technology with the functions of traditional toothbrushes, cleaning teeth and the oral cavity through vibration or rotation of the brush head.

[0040] An electric toothbrush includes a handle 100 and a brush head. The handle 100 includes a housing 200, a battery, a motor, a button, and a circuit board 700. The housing 200 has a storage cavity 210, in which the battery, motor, and circuit board 700 are housed. The circuit board 700 is electrically connected to the motor and the battery, allowing the motor to be started and stopped by pressing the button. In the prior art, after prolonged use, the battery of an electric toothbrush will be depleted, requiring the user to be prompted to recharge the battery. Typically, electric toothbrushes use an LED light to illuminate the button to alert the user. Specifically, a light guide film is positioned between the LED light and the button, and the light emitted by the LED passes through the light guide film before exiting the button. The stacked button, light guide film, and LED light occupy a large space, resulting in a large diameter of the housing 200, which is inconvenient for the user to hold. Therefore, this application proposes a new toothbrush handle 100.

[0041] Please refer to Figures 1 to 6In some embodiments, the toothbrush handle 100 includes: a housing 200, a pressing member 300, a light guide member 400, and a light-emitting member 500. The housing 200 has a storage cavity 210 and a light-transmitting hole 220 that are interconnected. The housing 200 may be cylindrical, with the diameter of its head being smaller than the diameter of its middle portion. The housing 200 is used for gripping by the user. The pressing member 300 is disposed in the light-transmitting hole 220. The pressing member 300 may be a button; after the user presses the pressing member 300, the toothbrush handle 100 can be turned on, off, or switched to different working modes. The pressing member 300 includes a light-transmitting portion 310, which allows light to pass through. After the light from the light-emitting member 500 is transmitted through the light-transmitting portion 310, the user can determine the status of the toothbrush handle 100 based on the light. The color of the light can be varied. For example, when the toothbrush handle 100 is charging, the light is red during charging and green when fully charged; the brush head pressure indicator shows a constant white light under normal pressure and flashes red when excessive pressure is applied. The light guide 400 is disposed in the storage cavity 210. The light guide 400 significantly improves the brightness and uniformity of the light-emitting element 500, reduces light loss and light spot phenomena, making the light softer, more uniform, and less glaring, thus improving the overall lighting effect. The light guide 400 can be a light guide film, and its material can be polycarbonate (PC), optical grade acrylic (PMMA), optical grade polyester film (PET), and polypropylene (PP), etc. The light-emitting element 500 can emit light and can be an LED light. The light-emitting element 500 is disposed in the storage cavity 210, and the light guide 400 and the light-emitting element 500 are arranged along a first direction perpendicular to the thickness direction of the light guide 400. The arrangement of the light guide 400 and the light-emitting element 500 along the first direction specifically means that the light-emitting element 500 is located on the side of the light guide 400, or the light guide 400 is located on the side of the light-emitting element 500, or the light-emitting element 500 and the light guide 400 may be located on the same horizontal plane (this horizontal plane is perpendicular to the thickness direction of the light guide 400). Please refer to [reference needed]. Figure 3The light emitted by the light-emitting element 500 can pass through the light guide 400 and be emitted from the light-transmitting portion 310. After the light emitted by the light-emitting element 500 is emitted from the light-transmitting portion 310, the user can know the status of the toothbrush handle 100 based on the light emitted by the light-emitting element 500. Specifically, after the light guide 400 and the light-emitting element 500 are arranged and distributed along the first direction, the first direction is perpendicular to the thickness direction of the light guide 400. In the prior art, the light-emitting element 500 is located below the light guide 400, that is, the light guide 400 and the light-emitting element 500 are arranged and distributed along the thickness direction of the light guide 400. This causes the light guide 400 and the light-emitting element 500 to occupy too much radial space inside the housing 200, thus making the diameter of the housing 200 larger and inconvenient for the user to hold. In this application, after the light guide 400 and the light-emitting element 500 are arranged in the first direction, they occupy less radial space inside the housing 200, thus eliminating the need to increase the diameter of the housing 200. In this way, the toothbrush handle 100 can be held more conveniently by the user. In addition, the light from the light-emitting element 500 can shine softly and evenly from the pressing element 300, thus providing users with a more comfortable experience.

[0042] Further, please refer to Figure 4 In some embodiments, the light guide 400 includes a body portion 410 and a protrusion 420. The protrusion 420 is connected to the body portion 410 and protrudes relative to the body portion 410, facing the light-transmitting portion 310. Specifically, the shape of the protrusion 420 can be semi-circular, cylindrical, or square, etc. The light emitted by the light-emitting element 500 diffuses at various angles inside the light guide 400, but at the protrusion 420, the reflection conditions are disrupted, and the light cannot be reflected according to the original planar conditions, so the light will be emitted from the protrusion 420. After the protrusion 420 faces the light-emitting element 500, it can concentrate the light and emit it to the light-transmitting portion 310, thereby emitting it. The protrusion 420 can be arranged in a ring on the body portion 410, which allows the light emitted by the light-emitting element 500 to be emitted to the light-transmitting portion 310 in a ring shape. The light guide 400 can be a light guide film, and the protrusion 420 can be formed by hot pressing with a mold. Taking light guide film as an example, thermoforming involves placing the light guide film substrate in a specific mold and causing plastic deformation of the substrate within the mold by heating and applying pressure, thereby obtaining a light guide film with a specific shape and protrusions, the protrusions being the protrusions 420. Furthermore, the protrusions 420 allow light to be emitted uniformly from the light-transmitting portion 310.

[0043] Furthermore, in some embodiments, there are multiple protrusions 420, including first protrusions and second protrusions. For example, there are fifteen protrusions 420, six first protrusions and nine second protrusions. The multiple first protrusions can be arranged in a line, and the multiple second protrusions can be arranged in a line. The distance between the first protrusion and the light-emitting element 500 in the first direction is A, and the distance between the second protrusion and the light-emitting element 500 in the first direction is B, where A < B. That is, the first protrusion is closer to the light-emitting element 500 than the second protrusion. The number of first protrusions is less than the number of second protrusions. It should be noted that the closer the protrusion 420 is to the light-emitting element 500, the greater the reflected light brightness. To ensure uniform light brightness when emitted from the light guide 400, this can be achieved either by using multiple protrusions 420 or by having fewer first protrusions than second protrusions (the first protrusions, being closer to the light-emitting element 500, reflect more light than the second protrusions, which are farther away; therefore, having fewer first protrusions than second protrusions ensures uniform brightness across the light guide 400). Thus, by adjusting the number of first and second protrusions, the brightness of different areas on the light guide 400 can be adjusted, resulting in uniform brightness across all areas of the light guide 400.

[0044] Furthermore, in some embodiments, there are multiple protrusions 420, including first protrusions and second protrusions. For example, there are fifteen protrusions 420, six first protrusions and nine second protrusions. The multiple first protrusions can be arranged in a line, and the multiple second protrusions can be arranged in a line. The distance between the first protrusion and the light-emitting element 500 in the first direction is A, and the distance between the second protrusion and the light-emitting element 500 in the first direction is B, where A < B. That is, the first protrusion is closer to the light-emitting element 500 than the second protrusion. The volume of each first protrusion is smaller than the volume of each second protrusion (the first protrusion is closer to the light-emitting element 500, and its reflected brightness is greater than that of the second protrusion, which is farther from the light-emitting element 500; therefore, the smaller volume of the first protrusion makes the brightness of each area on the light guide 400 uniform). It should be noted that the closer the light source is to the light-emitting element 500, the greater the brightness of the reflected light. To ensure uniform light brightness when emitted from the light guide 400, this can be achieved by either setting multiple protrusions 420 or by making the volume of the first protrusion smaller than that of the second protrusion. Thus, by adjusting the volumes of the first and second protrusions, the brightness of different areas on the light guide 400 can be adjusted, thereby achieving uniform brightness across all areas of the light guide 400.

[0045] Further, please refer to Figure 3 and Figure 4 In some embodiments, the light guide 400 is provided with a clearance hole 430. The clearance hole 430 is circular in shape. The toothbrush handle 100 also includes a connector 600 and a circuit board 700. The connector 600 is disposed in the clearance hole 430, and its two ends are respectively connected to the pressing member 300 and the circuit board 700 along the thickness direction of the light guide 400. Specifically, the connector 600 can be conductive silicone, and the circuit board 700 can be provided with a pressure-sensitive chip. After the two ends of the conductive silicone are respectively connected to the circuit board 700 and the pressing member 300, a pressure-sensitive button structure can be formed. The design of the pressure-sensitive button means that the user does not need to physically press to start the toothbrush, but can press the button with appropriate force, and the sensor can sensitively identify and quickly start the toothbrush. This design not only improves the convenience of use, but also reduces the risk of damage to the physical button, thereby extending the service life of the electric toothbrush. After the connector 600 is located in the clearance hole 430, the pressing member 300 can emit light for the user to identify.

[0046] Furthermore, when there is only one light-emitting element 500, it is located at one end of the light guide 400. In this case, the light from the light-emitting element 500 may not reach all areas of the light guide 400 evenly. This is because the connector 600 is located in the clearance hole 430, blocking the reflection of light. Therefore, please refer to... Figure 3 In some embodiments, the light-emitting element 500 includes a first light-emitting element and a second light-emitting element, which are located at both ends of the connector 600 along a first direction. Specifically, there may be two light-emitting elements 500, namely a first light-emitting element and a second light-emitting element, which are located at both ends of the connector 600. The first light-emitting element and the second light-emitting element can emit light from both sides of the connector 600 to the light guide 400, thereby effectively ensuring that the light can reach the light guide 400 uniformly. In addition, multiple first light-emitting elements and multiple second light-emitting elements can be provided, which are arranged circumferentially around the center of the clearance hole 430. This can make the brightness emitted to the light-transmitting part 310 more uniform and brighter.

[0047] Further, please refer to Figure 6 In some embodiments, the toothbrush handle 100 further includes a circuit board 700, to which the light guide 400 is adhered. For example, the light guide 400 is adhered to the circuit board 700 via an adhesive layer 800. Specifically, the light guide 400 can be attached to the circuit board 700 by adhesive bonding. When the light guide 400 is adhered to the circuit board 700, positioning holes can be provided on the light guide 400, and positioning posts can be provided on the circuit board 700, thereby facilitating the installation of the light guide 400. The adhesive bonding method is simple to operate and can improve installation efficiency.

[0048] Further, please refer to Figure 5 In some embodiments, the pressing member 300 includes two light-shielding portions 320 and a light-transmitting portion 310. The two sides of the light-transmitting portion 310 are respectively connected to the two light-shielding portions 320. The light-transmitting portion 310 surrounds the edge of one light-shielding portion 320, and the other light-shielding portion 320 surrounds the edge of the light-transmitting portion 310. The light-transmitting portion 310 can be annular in shape, and the light-shielding portion 320 can be circular in shape. The light-shielding portion 320 is opaque. When the light-transmitting portion 310 is positioned between the two light-shielding portions 320, when light is emitted from the light-transmitting portion 310, a circular halo will appear on the pressing member 300. More specifically, the cooperation of the light-shielding portion 320 and the light-transmitting portion 310 can make the light emitted from the light-transmitting portion 310 brighter and more uniform. The pressing part 300 can be made of a semi-transparent material. Then, paint is sprayed on the pressing part 300 to form a light-shielding part 320, and then a light-transmitting part 310 is formed by laser engraving.

[0049] Further, please refer to Figure 6 In some embodiments, the light-emitting element 500 has a light-emitting surface 510 facing the light guide element 400. Specifically, the light-emitting element 500 can be an LED lamp. The light-emitting surface 510 of the light-emitting element 500 can emit light. After the light-emitting surface 510 faces the light guide element 400, the light can be concentrated on the light guide element 400, preventing the light from shining on other places.

[0050] In some embodiments, the electric toothbrush includes a brush head and a toothbrush handle 100 as described in any of the above embodiments, the toothbrush handle 100 being connected to the brush head. Specifically, after the light guide 400 and the light-emitting element 500 are arranged along a first direction, the first direction being perpendicular to the thickness direction of the light guide 400. In the prior art, the light-emitting element 500 is disposed below the light guide 400, that is, the light guide 400 and the light-emitting element 500 are arranged along the thickness direction of the light guide 400. This results in the light guide 400 and the light-emitting element 500 occupying too much radial space inside the housing 200, thus making the diameter of the housing 200 larger and inconvenient for the user to hold. In this application, after the light guide 400 and the light-emitting element 500 are arranged in the first direction, they occupy less radial space inside the housing 200, thereby eliminating the need to increase the diameter of the housing 200. Thus, the toothbrush handle 100 is convenient for the user to hold. Furthermore, the electric toothbrush with this toothbrush handle 100 is convenient for the user to use. In addition, the light from the light-emitting element 500 can shine softly and evenly from the pressing element 300, thus providing users with a more comfortable experience.

[0051] 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 toothbrush handle, characterized in that, include: The casing has interconnected storage cavities and light-transmitting holes; A pressing element is disposed in the light-transmitting hole, and the pressing element includes a light-transmitting part that is capable of transmitting light. A light guide element is disposed in the storage cavity; A light-emitting element capable of emitting light is disposed in the storage cavity. The light guide and the light-emitting element are arranged along a first direction, which is perpendicular to the thickness direction of the light guide. The light emitted by the light-emitting element can pass through the light guide and be emitted from the light-transmitting portion. The light guide includes a body portion and a protruding portion. The protruding portion is connected to the body portion and protrudes relative to the body portion, with the protruding portion facing the light-transmitting portion. The protrusion has multiple parts, including a first protrusion and a second protrusion. The distance between the first protrusion and the light-emitting element in the first direction is A, and the distance between the second protrusion and the light-emitting element in the first direction is B, where A < B. The number of the first protrusion is less than the number of the second protrusion. The light guide is provided with a clearance hole, and the toothbrush handle also includes a connector and a circuit board. The connector is disposed in the clearance hole and along the thickness direction of the light guide, the two ends of the connector are respectively connected to the pressing member and the circuit board. The light-emitting element includes a first light-emitting element and a second light-emitting element, and along the first direction, the first light-emitting element and the second light-emitting element are respectively located at both ends of the connector.

2. The toothbrush handle according to claim 1, characterized in that, The protrusions are multiple, including a first protrusion and a second protrusion. The distance between the first protrusion and the light-emitting element in the first direction is A, and the distance between the second protrusion and the light-emitting element in the first direction is B, where A < B. The volume of each first protrusion is smaller than the volume of each second protrusion.

3. The toothbrush handle according to claim 1, characterized in that, The toothbrush handle also includes a circuit board, and the light guide is adhered to the circuit board.

4. The toothbrush handle according to claim 1, characterized in that, The pressing component includes two light-blocking portions and a light-transmitting portion, the light-transmitting portion surrounding the edge of one of the light-blocking portions, and the other light-blocking portion surrounding the edge of the light-transmitting portion.

5. The toothbrush handle according to claim 1, characterized in that, The light-emitting element has a light-emitting surface, which faces the light guide element.

6. An electric toothbrush, characterized in that, include: Brush head; The toothbrush handle as described in any one of claims 1 to 5 is connected to the brush head.

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