CN218922847U

CN218922847U - Electric toothbrush

Info

Publication number: CN218922847U
Application number: CN202222549417.6U
Authority: CN
Inventors: 刘坤光; 江艳
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-04-28
Anticipated expiration: 2032-09-23

Abstract

The embodiment of the application provides an electric toothbrush, which comprises a brush head, a brush handle, keys and a display piece. The brush handle at least comprises a first side shell, a second side shell and a third side shell, the second side shell and the third side shell are oppositely arranged and are respectively connected to two sides of the first side shell in the circumferential direction of the brush handle, and the brush handle is provided with a connecting end connected with the brush head and a free end far away from the brush head; the key is arranged on the first side shell and is closer to the connecting end than the free end; the display piece is at least partially installed in second side shell and/or third side shell, and the display piece is close to the link setting in comparison with the free end, and in the length direction of handle, the display piece has first distance with the link of handle in the length direction of handle, and the display piece has the second distance with the free end of handle in the length direction of handle, and the ratio of first distance to second distance is more than or equal to 0.1. The electric toothbrush provided by the embodiment of the application can conveniently observe the display piece when a user brushes teeth.

Description

Electric toothbrush

Technical Field

The application relates to the technical field of oral cavity cleaning, in particular to an electric toothbrush.

Background

In the related art, the electric toothbrush is provided with a display part, and the display part can be a display screen, a light emitting diode and the like, but the current display part is generally arranged in the middle of a brush handle of the electric toothbrush, and a user can shield the display part when holding the brush handle, so that the user is inconvenient to view the content displayed by the display part.

Disclosure of Invention

The present application provides an electric toothbrush in which a user can conveniently observe a display while brushing his teeth.

Embodiments of the present application provide an electric toothbrush comprising:

a brush head;

the brush handle at least comprises a first side shell, a second side shell and a third side shell, the second side shell and the third side shell are oppositely arranged and are respectively connected to two sides of the first side shell in the circumferential direction of the brush handle, and the brush handle is provided with a connecting end connected with the brush head and a free end far away from the brush head;

the key is arranged on the first side shell and is closer to the connecting end than the free end; the method comprises the steps of,

the display piece is at least partially installed in the second side shell and/or the third side shell, the display piece is closer to the connecting end than the free end is, in the length direction of the handle, the display piece is in the length direction of the handle and is provided with a first distance from the connecting end of the handle, in the length direction of the handle and is provided with a second distance from the free end of the handle, and the ratio of the first distance to the second distance is more than or equal to 0.1.

Optionally, the handle further comprises:

a fourth side case disposed opposite to the first side case and connected to both the second side case and the third side case in a circumferential direction of the handle;

the display piece is a strip-shaped display piece, and the strip-shaped display piece extends from the second side shell to the third side shell through the fourth side shell along the circumferential direction of the brush handle.

Optionally, the key is located on an extension path of the display when extending along a circumference of the handle.

Optionally, the display piece is in a strip shape, and the dimension of the display piece along the length direction of the brush handle is more than or equal to 1mm and less than or equal to 4mm.

Optionally, the handle comprises:

the connecting section is provided with the connecting end and a first connecting end far away from the connecting end;

a gripping section having the free end and a second connection end remote from the free end, the second connection end being connected to the first connection end;

the display piece is arranged on the connecting section, and a third distance is reserved between the display piece and the first connecting end along the length direction of the brush handle, and the ratio of the third distance to the first distance is smaller than or equal to 0.2; or,

the display piece is arranged on the holding section and along the length direction of the brush handle, the display piece and the second connecting end are provided with a fourth distance, and the ratio of the fourth distance to the second distance is smaller than or equal to 0.2.

Optionally, along the length direction of the brush handle, the holding section has a first length, the connecting section has a second length, and the ratio of the first length to the second length is greater than or equal to 2 and less than or equal to 5; or the sum of the lengths of the connecting section and the brush head is a third length, and the ratio of the first length to the third length is more than or equal to 1 and less than or equal to 2.

Optionally, the handle comprises:

a connecting section having the connecting end;

the holding section is provided with the free end and is connected with one end of the connecting section, which is far away from the brush head;

the display piece is arranged on the holding section, the section of the holding section perpendicular to the length direction of the brush handle is a first section, the section of the connecting section perpendicular to the length direction of the brush handle is a second section, and the maximum size of the second section is larger than that of the first section so as to form a step surface between the connecting section and the holding section.

Optionally, the step surface is an inclined surface extending from the connecting section to the holding section, and the extending direction of the inclined surface has a component parallel to the length direction of the brush handle and a component perpendicular to the length direction of the brush handle and pointing to the center position of the brush handle.

Optionally, the distance between the display piece and the step surface along the length direction of the brush handle is greater than or equal to 1.5mm, and the height of the protrusion of the step surface relative to the holding part is less than or equal to 3mm.

Optionally, the display member is a light transmitting member, the handle has a light transmitting hole for mounting the light transmitting member, and the electric toothbrush further comprises:

the light source is arranged in the brush handle, and light emitted by the light source is emitted out of the brush handle through the light-transmitting piece.

Optionally, the electric toothbrush further comprises:

the light guide piece is arranged in the brush handle, the light guide piece is arranged along the length direction of the brush handle and is arranged at intervals with the light source, the light emitting side of the light source faces towards the light guide piece, and the light guide piece is used for guiding the light emitted by the light source into the light transmitting piece.

Optionally, the light transmission piece the light guide piece all with brush holder integrated into one piece, the light guide piece paste is located the brush holder inner wall, the light transmission piece for the light guide piece arch is in order to stretch into in the light trap.

Optionally, the electric toothbrush further comprises:

the mounting bracket is arranged in the brush handle, and the light source is mounted on the mounting bracket;

the motor assembly is arranged on the mounting bracket, can deflect relative to the mounting bracket and is provided with an output shaft, and the output shaft extends out of the brush handle from the motor assembly to be connected with the brush head;

when the brush head is acted by external force, the brush head drives the motor assembly to deflect relative to the mounting bracket through the output shaft, and the deflection direction of the deflection of the mounting bracket deviates from the light source.

Optionally, the electric toothbrush further comprises:

a pressure detecting element connected to the motor assembly;

the circuit board is connected with the light source and the pressure detection element;

the pressure detection element can trigger an overvoltage detection signal based on the deflection action of the motor assembly and transmit the overvoltage detection signal to the circuit board, and the circuit board can control the light source to change the working state according to the overvoltage detection signal so as to remind a user that the brush head is subjected to excessive pressure.

Optionally, the display piece is a self-luminous piece, and the brush handle is provided with a mounting groove for mounting the self-luminous piece.

The embodiment of the application provides an electric toothbrush, wherein a key is arranged on a first side shell of a brush holder, a display piece is at least partially arranged on a second side shell and/or a third side shell of the brush holder, the second side shell and the third side shell are arranged opposite to each other and are respectively connected to two sides of the first side shell in the circumferential direction of the brush holder, so that when a user thumb presses the key, the thumb can be prevented from shielding the display piece in the circumferential direction of the brush holder; and the display piece is closer to the connecting end than the free end, in the length direction of the brush holder, the display piece has a first distance with the connecting end of the brush holder in the length direction of the brush holder, the display piece has a second distance with the free end of the brush holder in the length direction of the brush holder, the ratio of the first distance to the second distance is more than or equal to 0.1, so, when the key is pressed by the thumb of a user, and the section between the key and the free end of the brush holder is held by the other four fingers and the hand of the user, the display piece can be exposed through the opening between the thumb and the index finger of the user, so that the user can observe the display content of the display piece conveniently.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an electric toothbrush in one embodiment of the present application;

FIG. 2 is a schematic view of an alternate view of the electric toothbrush of FIG. 1 of the present application;

FIG. 3 is a schematic view of an electric toothbrush of FIG. 1 according to the present application from a further perspective;

fig. 4 is a partially exploded view of an electric toothbrush in one embodiment of the present application.

Description of the drawings: 1. an electric toothbrush; 10. a brush handle; 101. a connection end; 102. a free end; 103. a first connection end; 104 a second connection; 10a, a gripping section; 10b, a connecting section; 10c, a step surface; 10d, light holes; 11. a first side case; 12. a second side case; 13. a third side case; 14. a fourth side case; 20. a key; 30. a display member; 40. a light source; 50. a light guide; 60. a mounting bracket; 70. a motor assembly; 701. an output shaft; 80. a circuit board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

Referring to fig. 1-2, an electric toothbrush 1 for cleaning a user's oral cavity is provided, and the electric toothbrush 1 includes a brush head (not shown), a brush handle 10, keys 20, and a display 30.

The brush head is arranged on the brush handle 10 and used for extending into the oral cavity of a user to clean the teeth of the user, and the brush head can be detachably connected with the brush handle 10 so as to be convenient for replacing the brush head.

A handle 10 for a user's hand or grip, i.e., the handle 10 has a length A, the handle 10 having a connecting end 101 for connection to the head and a free end 102 remote from the head; the connecting end 101 and the free end 102 are both ends in the length direction a of the handle 10.

Specifically, the handle 10 may be cylindrical or square, as shown in fig. 1, or may be substantially square but rounded at corners, or the handle 10 may be irregularly shaped, such as in a streamline shape. The specific shape of the brush holder 10 is not limited in this embodiment, but the brush holder 10 at least includes a first side case 11, a second side case 12 and a third side case 13, the second side case 12 and the third side case 13 are disposed opposite to each other, specifically, the second side case 12 and the third side case 13 may be disposed opposite to each other, and the second side case 12 and the third side case 13 may be disposed opposite to each other in an inclined manner, for example, when the second side case 12 and the third side case 13 are both flat, the second side case 12 and the third side case 13 are disposed in parallel or at an angle; the second side case 12 and the third side case 13 are respectively connected to both sides of the first side case 11 in the circumferential direction of the handle 10, and in this case, the second side case 12 and the third side case 13 may be directly connected to both sides of the first side case 11 in the circumferential direction of the handle 10, or may be indirectly connected, that is, other side cases may exist between the second side case 12 and the first side case 11 and between the third side case 13 and the first side case 11, or may not exist between the second side case 12 and the third side case 11.

Specifically, when the handle 10 is cylindrical, the handle 10 may be divided into four side cases along the circumferential direction of the handle 10, wherein any three side cases connected in sequence may be used as the first side case 11, the second side case 12, and the third side case 13, and the remaining one side case may be used as the fourth side case 14 disposed opposite to the third side case 13. As shown in fig. 1 to 2, when the handle 10 is substantially square-cylindrical but corners are rounded, any three side cases, which are sequentially connected in order, among the four side cases of the handle 10 may be used as the first side case 11, the second side case 12, and the third side case 13, and the remaining one side case may be used as the fourth side case 14 disposed opposite to the first side case 11. It is understood that the brush holder 10 may include only the first side case 11, the second side case 12, and the third side case 13, and the first side case 11, the second side case 12, and the third side case 13 may be sequentially connected to form a substantially triangular prism shape.

The keys 20 are used for a user to operate the electric toothbrush 1, and the keys 20 may be specifically a switch key, a mode selection key, a force adjustment key, etc., and the keys 20 include, but are not limited to, a seamless key and a slotted key, and the specific type and function of the keys 20 are not limited in this embodiment. The key 20 is disposed on the first side case 11, and the key 20 is disposed closer to the connection end 101 than the free end 102, so that the user can conveniently press the key 20 with his thumb, and at the same time, the user can grasp the section between the key 20 and the free end 102 of the brush holder 10 with the palm in a matching manner, that is, the user can grasp the brush holder 10 and operate the key 20 at the same time,

the display 30 is used for displaying information related to the electric toothbrush 1, and the display 30 may be a display screen or a light emitting lamp. The display member 30 is at least partially mounted to the second side case 12 and/or the third side case 13, i.e., the display member 30 may be partially or entirely mounted to the second side case 12, or the display member 30 may be partially or entirely mounted to the third side case 13, or the display member 30 may be simultaneously mounted to the second side case 12 and the third side case 13 and only partially or entirely mounted to the second side case 12 and the third side case 13. In summary, the display 30 is not located on the same side as the key 20 and is located at least on the second side casing 12 and/or the third side casing 13 adjacent to the first side casing 11 on which the key 20 is located, so as to avoid the display 30 being blocked when the user thumb presses the key 20, and also to facilitate the user to observe the display 30.

Referring to fig. 3, further, the display member 30 is disposed closer to the connection end 101 than the free end 102, in the length direction a of the brush holder 10, the display member 30 has a first distance D1 from the connection end 101 of the brush holder 10 in the length direction a of the brush holder 10, the display member 30 has a second distance D2 from the free end 102 of the brush holder 10 in the length direction a of the brush holder 10, and the ratio of the first distance D1 to the second distance D2 is greater than or equal to 0.1, so that when the key 20 is pressed by the thumb of the user, and the segment between the key 20 and the free end 102 of the brush holder 10 is grasped by the remaining four fingers and the hand of the user, the display member 30 can be exposed through the opening between the thumb and the index finger of the user, so that the user can observe the display content of the display member 30. When the ratio of the first distance D1 to the second distance D2 is less than or equal to 0.1, the display member 30 is too close to the connection end 101, so that the display member 30 is inconvenient to mount, and the display member 30 is too close to the brush head, and when the user uses the electric toothbrush 1, the display member 30 is too close to the face of the user, so that the user is inconvenient to view the display content of the display member 30.

In summary, by mounting the key 20 on the first side case 11 of the brush holder 10, and mounting the display 30 at least partially on the second side case 12 and/or the third side case 13 of the brush holder 10, the second side case 12 and the third side case 13 are disposed opposite to each other and are respectively connected to two sides of the first side case 11 in the circumferential direction of the brush holder 10, so that when the user thumb presses the key 20, the thumb can be prevented from shielding the display 30 in the circumferential direction of the brush holder 10; and the display member 30 is disposed closer to the connection end 101 than the free end 102, the display member 30 has a first distance D1 from the connection end 101 of the brush holder 10 in the length direction a of the brush holder 10, the display member 30 has a second distance D2 from the free end 102 of the brush holder 10 in the length direction a of the brush holder 10, and the ratio of the first distance D1 to the second distance D2 is equal to or greater than 0.1, for example, the ratio of the first distance D1 to the second distance D2 is 0.1, 0.2, 0.3, 0.4 or 0.5, so that when the key 20 is pressed by the thumb of the user, and the section between the key 20 and the free end 102 of the brush holder 10 is grasped by the remaining four fingers and the hand of the user, the display member 30 can be exposed through the opening between the thumb and the index finger of the user, so that the user can observe the display content of the display member 30.

With continued reference to fig. 1-3, in some embodiments, handle 10 further includes a fourth side housing 14, fourth side housing 14 being disposed opposite first side housing 11 and being connected to both second side housing 12 and third side housing 13 in the circumferential direction of handle 10, i.e., first side housing 11, second side housing 12, fourth side housing 14, and third side housing 13 are disposed either directly in sequence or indirectly in sequence. As shown in fig. 2, the display 30 is a band-shaped display and extends from the second side case 12 to the third side case 13 through the fourth side case 14 in the circumferential direction of the handle 10, so that the display area of the display 30 can be increased in the circumferential direction of the handle 10, and the portion of the display 30 mounted to the second side case 12 can be observed through the opening between the thumb and index finger of the right hand when the user grips the electric toothbrush 1 with the right hand, and the portion of the display 30 mounted to the third side case 13 can be observed through the opening between the thumb and index finger of the left hand when the user grips the electric toothbrush 1 with the left hand, that is, the display content of the display 30 can be observed regardless of whether the user uses the left hand or the right hand. The strip display member extends from the second side shell 12 to the third side shell 13 through the fourth side shell 14, and the display function of the display member 30 can be realized on the second side shell 12 and the third side shell 13 by only arranging one display member 30.

As shown in fig. 1 or 3, in some embodiments, the key 20 is located on the extension path of the display 30 when extending along the circumference of the handle 10, i.e., the distance from the display 30 to the free end 102 of the handle 10 is equal to or approximately equal to the distance from the key 20 to the end of the handle 10, and due to the physiological structure of the palm of the user's hand, when the user holds the handle 10, the thumb corresponds to the key 20, and the remaining four fingers hold the handle 10, but the index finger is generally lower than the thumb belly, and with reference to the standing thumb posture, the user's thumb can be further prevented from obscuring the display 30 by the remaining four fingers.

Referring to fig. 3, in some embodiments, the display member 30 is in a belt shape, and the dimension D of the display member 30 along the length direction a of the brush holder 10 is greater than or equal to 1mm and less than or equal to 4mm, for example, the dimension D of the display member 30 along the length direction a of the brush holder 10 is 1mm, 2mm, 3mm or 4mm, so that the cost can be reduced, and the display area can be larger for displaying the content, which is convenient for the user to observe the display content. When the size of the display member 30 along the length direction a of the brush holder 10 is less than 1mm, the band-shaped display member is too thin, the display content is not obvious, and the user cannot observe the display content conveniently; when the display 30 is greater than 4mm in the length direction a of the handle 10, the band-shaped display is too wide and costly, and the too wide display 30 is easily blocked by the user's finger, resulting in the user not being able to observe the complete display.

Referring to fig. 3, in some embodiments, the handle 10 includes a connecting section 10b and a holding section 10a, the connecting section 10b having a connecting end 101 for connecting the handle 10 and a first connecting end 103 remote from the connecting end 101, the holding section 10a being for holding by a user's hand, the holding section 10a having a free end 102 and a second connecting end 104 remote from the free end 102, the second connecting end 104 being connected with the first connecting end 103 to form the handle 10

Referring to fig. 3, in some embodiments, the display member 30 is disposed on the holding section 10a and is disposed closer to the second connecting end 104 than the free end 102, and along the length direction a of the brush holder 10, the display member 30 and the second connecting end 104 have a fourth distance D4, and a ratio of the fourth distance D4 to the second distance D2 is less than or equal to 0.2, for example, a ratio of the fourth distance D4 to the second distance D2 is 0.2, 0.15 or 0.1, so that the display member 30 is close to the second connecting end 104, that is, close to a joint between the holding section 10a and the connecting end 10b, and is not blocked by the hand of the user, or is not blocked by the face of the user during the brushing process; when the ratio of the fourth distance D4 to the second distance D2 is greater than 0.2, the display 30 is closer to the user's face during brushing, and there is a risk of occlusion by the user's face.

In other embodiments, the display 30 is disposed on the connecting section 10b and is disposed closer to the first connecting end 103 than the connecting end 101 (such as the display 30 shown by the dashed line in fig. 3), and along the length direction a of the brush holder 10, the display 30 has a third distance D3 from the first connecting end 103, and the ratio of the third distance D3 to the first distance D1 is less than or equal to 0.2, for example, the ratio of the third distance D3 to the first distance D1 is 0.2, 0.15 or 0.1, so that the display 30 can make the display 30 close to the first connecting end 103, that is, close to the junction between the holding section 10a and the connecting end 10b, not be blocked by the hand of the user, or not be blocked by the face of the user during brushing; when the ratio of the third distance D3 to the first distance D1 is greater than 0.2, the display 30 is closer to the user's hand, and there is a risk of being blocked by the user's hand.

With continued reference to fig. 3, in some embodiments, along the length direction a of the brush holder 10, the holding section 10a has a first length L1, the connecting section 10b has a second length L2, and the ratio of the first length L1 to the second length L2 is greater than or equal to 2 and less than or equal to 5, for example, the ratio of the first length L1 to the second length L2 may be 2, 3, 4 or 5, so that the holding section 10a has a suitable length, and when the ratio of the first length L1 to the second length L2 is less than 2, the holding section 10a is too short to facilitate holding by a user, and when the ratio of the first length L1 to the second length L2 is greater than 5, the holding section 10a is too long, which is not convenient for the user to grasp the position of the brush head, and when the user brushes the face of the user is too far, the display 30 may be too far from the user, which is inconvenient for the user to observe the display content.

With continued reference to fig. 3, further, the sum of the lengths of the connecting section 10b and the brush head is a third length L3, the ratio of the first length L1 to the third length L3 is greater than or equal to 1 and less than or equal to 2, for example, the ratio of the first length L1 to the third length L3 is 1, 1.5 or 2, so that the holding section 10a has a suitable length, when the ratio of the first length L1 to the third length L3 is less than 1, the holding section 10a is too short, so that the holding section is inconvenient for a user to hold, the display element 30 is easy to be blocked when the user holds the brush head, the arm corresponding to the third length L3 is long, and the brushing is more laborious; when the ratio of the first length L1 to the third length L3 is greater than 2, the grip section 10a is too long, which is inconvenient for the user to grasp the position of the brush head, and the display member 30 is closer to the brush head, so that the user is inconvenient to observe the display content during brushing teeth.

Referring to fig. 1-2, in some embodiments, the display 30 is disposed on the holding section 10a, the section of the holding section 10a perpendicular to the length direction a of the handle 10 is a first section, the section of the connecting section 10b perpendicular to the length direction a of the handle 10 is a second section, and the maximum dimension of the second section is greater than the maximum dimension of the first section, so as to form a step surface 10c between the connecting section 10b and the holding section 10a, and when the holding section 10a is held by a user's hand, the risk of dropping the electric toothbrush 1 from the user's hand is reduced by limiting the user's hand with respect to the step surface 10c protruding from the holding section 10 a.

In some embodiments, the step surface 10c is an inclined surface extending from the connecting section 10b to the holding section 10a, and the extending direction of the inclined surface is a component parallel to the length direction a of the brush holder 10, and a component perpendicular to the length direction a of the brush holder 10 and pointing to the central position of the brush holder 10, that is, the step surface 10c extends obliquely from the connecting section 10b to the free end 102 of the holding section 10a, and the inclined direction is toward the central position of the brush holder 10, so that when a user brushes teeth, the user can observe the display content of the display 30 conveniently, and the probability that the sight of the user looking at the display 30 is blocked by the connecting portion is reduced.

Further, the distance between the display 30 and the step surface 10c in the length direction a of the handle 10 is 1.5mm or more, for example, the distance between the display 30 and the step surface 10c in the length direction a of the handle 10 is 1.5mm, 1.7mm, 1.9mm, 2.1mm, 2.3mm, 2.5mm, 3.0mm, or the like, the display 30 is farther from the step surface 10c, and the height of the protrusion of the step surface 10c with respect to the grip section 10a is 3mm or less, for example, the height of the protrusion of the step surface 10c with respect to the grip section 10a is 1.0mm, 1.5mm, 1.7mm, 1.9mm, 2.1mm, 2.3mm, 2.5mm, 3.0mm, or the like, and the height of the step surface 10c is lower, thereby reducing the probability that the user sees the sight of the display 30 blocked by the connection section 10b and the step surface 10 c. When the distance between the display 30 and the step surface 10c along the length direction a of the brush holder 10 is less than 1.5mm, the display 30 is closer to the step surface 10c, the probability that the line of sight of the user looking at the display 30 is blocked by the connection portion is greatly increased, and when the height of the step surface 10c raised from the grip section 10a is greater than 3mm, the height of the step surface 10c is excessively high, and the probability that the line of sight of the user looking at the display 30 is blocked by the connection portion is greatly increased.

Referring to fig. 4, in some embodiments, the display member 30 is a transparent member, the brush holder 10 has a light hole 10d for installing the transparent member, and stable installation of the transparent member on the brush holder 10 can be realized through the light hole 10d, and the transparent member can be specifically light-transmitting glass or a light-transmitting arrangement; the electric toothbrush 1 further comprises a light source 40, wherein the light source 40 is arranged in the brush holder 10, and the light emitted by the light source 40 is emitted out of the brush holder 10 through the light-transmitting member, so that information related to the electric toothbrush 1 can be displayed.

Referring to fig. 4, further, the electric toothbrush 1 further includes a light guide 50, the light guide 50 is disposed in the brush holder 10, and the light guide 50 is disposed along the length direction a of the brush holder 10 and spaced apart from the light source 40, so that the thickness of the brush holder 10 in the radial direction can be reduced by disposing the light guide 50 along the length direction a of the brush holder 10 and spaced apart from the light source 40, compared to disposing the light guide 50 and the light source 40 along the radial direction of the brush holder 10, thereby facilitating miniaturization of the brush holder 10. Further, the light emitting side of the light source 40 is disposed towards the light guide member 50 to guide the light emitted by the light source 40 into the light transmitting member, so that a complete light emitting path from the light source 40 to the light guide member 50 and from the light guide member 50 to the light transmitting member is realized on the basis of the interval arrangement of the light source 40 and the light guide member 50, the light utilization rate of the light source 40 is improved, and poor display effect caused by too much light leakage of the light source 40 is avoided.

In some embodiments, the light-transmitting member and the light-guiding member 50 are integrally formed with the brush holder 10, and the light-guiding member 50 is attached to the inner wall of the brush holder 10, so that not only can the production process be simplified and the number of parts be reduced, but also the stability of the light-transmitting member and the light-guiding member 50 on the brush holder 10 can be improved; and the light transmitting piece protrudes in order to extend into the light transmitting hole 10d relative to the light guiding piece 50, so that light is accurately guided into the light transmitting piece arranged in the light transmitting hole 10d, the light transmitting hole 10d limits the light guiding piece 50, and the installation stability of the light guiding piece 50 on the brush handle 10 can be improved.

Referring to fig. 4, in some embodiments, the brush further includes a mounting bracket 60 and a motor assembly 70, the mounting bracket 60 is disposed in the brush holder 10, the light source 40 is mounted on the mounting bracket 60, the motor assembly 70 is mounted on the mounting bracket 60 and can deflect relative to the mounting bracket 60, the motor assembly 70 further has an output shaft 701, the output shaft 701 extends out of the brush holder 10 from the motor assembly 70 and is connected with the brush head, when the brush head is subjected to external force, the brush head drives the motor assembly 70 to deflect relative to the mounting bracket 60 through the output shaft 701, the deflection direction of the deflection of the mounting bracket 60 is away from the light source 40, thereby avoiding the light emitting path of the light source 40 from being blocked after the deflection of the mounting bracket 60, and further ensuring that the light source 40 emits light to the light guide 50 normally.

Referring to fig. 4, in some embodiments, the brush head further includes a pressure detecting element (not shown) and a circuit board 80, the pressure detecting element is connected to the motor assembly 70, the circuit board 80 is connected to the light source 40 and the pressure detecting element, when the brush head is subjected to an external force, the brush head drives the motor assembly 70 to deflect relative to the mounting bracket 60 via the output shaft 701, the pressure detecting element can trigger an overpressure detecting signal based on the deflection action of the motor assembly 70 and transmit the overpressure detecting signal to the circuit board 80, and the circuit board 80 can control the light source 40 to change the working state according to the overpressure detecting signal so as to remind the user that the brush head is subjected to an excessive pressure, that is, to realize an overpressure reminding.

In other embodiments, the display member 30 is a self-luminous member (not shown), and the self-luminous member does not need to be provided with the light source 40 and the light guide member 50, so that the structure is simple, and the interior space of the brush holder 10 is not required, and the brush holder 10 is provided with a mounting groove (not shown) for mounting the self-luminous member, through which stable mounting of the self-luminous member can be achieved.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., which are based on the azimuth or positional relationship described in the drawings, this is merely for convenience of description and simplification of the description, rather than to indicate or imply that the devices or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for exemplary illustration, and are not to be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. An electric toothbrush, comprising:

a brush head;

the display piece is at least partially installed in the second side shell and/or the third side shell, the display piece is closer to the connecting end than the free end is, in the length direction of the brush handle, the display piece is in the length direction of the brush handle and is provided with a first distance from the connecting end of the brush handle, in the length direction of the brush handle and is provided with a second distance from the free end of the brush handle, and the ratio of the first distance to the second distance is more than or equal to 0.1.

2. The powered toothbrush as defined in claim 1, wherein the handle further comprises:

3. The electric toothbrush according to claim 1, wherein the key is located on an extending path of the display member when extending in a circumferential direction of the handle.

4. The electric toothbrush according to claim 1, wherein the display member is in a belt shape, and a dimension of the display member in a length direction of the handle is 1mm or more and 4mm or less.

5. The powered toothbrush as defined in claim 1, wherein the handle comprises:

6. The electric toothbrush according to claim 5, wherein the grip section has a first length and the connecting section has a second length in a length direction of the handle, and a ratio of the first length to the second length is 2 or more and 5 or less; or the sum of the lengths of the connecting section and the brush head is a third length, and the ratio of the first length to the third length is more than or equal to 1 and less than or equal to 2.

7. The powered toothbrush as defined in claim 1, wherein the handle comprises:

a connecting section having the connecting end;

8. The electric toothbrush according to claim 7, wherein the step surface is a slope extending from the connecting section to the grip section, and the slope has a component parallel to a longitudinal direction of the handle and a component perpendicular to the longitudinal direction of the handle and directed toward a center position of the handle.

9. The electric toothbrush according to claim 7, wherein a distance between the display member and the step surface in a length direction of the handle is 1.5mm or more, and a raised height of the step surface with respect to the grip section is 3mm or less.

10. The electric toothbrush according to any one of claims 1-9, wherein the display member is a light transmissive member, the handle having a light transmissive aperture for mounting the light transmissive member, the electric toothbrush further comprising:

11. The powered toothbrush as defined in claim 10, further comprising:

12. The electric toothbrush according to claim 11, wherein the light-transmitting member and the light-guiding member are integrally formed with the handle, the light-guiding member is attached to the inner wall of the handle, and the light-transmitting member protrudes relative to the light-guiding member so as to extend into the light-transmitting hole.

13. The powered toothbrush as defined in claim 10, further comprising:

14. The powered toothbrush as defined in claim 13, further comprising:

a pressure detecting element connected to the motor assembly;

15. The electric toothbrush according to any one of claims 1 to 9, wherein the display member is a self-luminous member, and the handle has a mounting groove for mounting the self-luminous member thereon.