Toothbrush handle and electric toothbrush

Abstract

The present application discloses a toothbrush handle comprising: a shell, provided with an opening; a motor, comprising a motor housing, a stator, a rotor, and an output shaft, wherein the motor housing is movably mounted in the shell, both the stator and the rotor are arranged in the motor housing, with the stator fixed relative to the motor housing, the output shaft is connected to the rotor and can rotate along with the rotor relative to the stator, with the rotation angle of the rotor relative to the stator being not less than 60°, one end of the output shaft extends out of the motor housing and is connected to a brush head by means of the opening, and the brush head, under the action of a force, can drive the motor housing to move relative to the shell; and a detection assembly, arranged in the shell and comprising a first detection member and a second detection member, wherein the first detection member is connected to the motor housing and moves along with the motor housing relative to the shell, and the second detection member cooperates with the first detection member to detect the pressure applied to the brush head.

Description

Toothbrush handle and electric toothbrush

[0001] The present application claims priority to the Chinese patent application No. 202421117404.4, filed on May 21, 2024, and entitled "Toothbrush handle and electric toothbrush", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of oral care, in particular to a toothbrush handle and an electric toothbrush. BACKGROUND

[0003] An electric toothbrush provided by the related art comprises a motor for driving a brush head to rotate and a pressure detection member for monitoring the brushing pressure. The motor has a stator and a rotor. The output shaft of the rotor is connected to the brush head to drive the brush head to rotate. The pressure detection member is arranged on the output shaft and connected to a circuit board through a wire. The pressure detection member monitors the brushing pressure by detecting the deformation amount of the rotor.

[0004] However, the electric toothbrush provided by the above-mentioned related art still has the following deficiencies in actual application: since the pressure detection member is fixedly connected to the output shaft of the rotor, the pressure detection member will rotate with the rotor during use of the electric toothbrush, which easily causes the wire connected to the pressure detection member to be wound, and further causes the risk of the wire connected to the pressure detection member being pulled off.

[0005] SUMMARY

[0006] The main purpose of the present application is to provide a toothbrush handle, which aims to solve the problem that the wire connected to the pressure detection member is wound due to the rotation of the pressure detection member with the rotor in the related art.

[0007] To achieve the above-mentioned purpose, the present application provides a toothbrush handle, which comprises:

[0008] a housing provided with an opening;

[0009] a motor comprising a casing, a stator, a rotor and an output shaft, the casing is movably installed in the housing, the stator and the rotor are arranged in the casing, the stator is fixed relative to the casing, the output shaft is connected to the rotor and can rotate with the rotor relative to the stator, the rotation angle of the rotor relative to the stator is not less than 60°, one end of the output shaft penetrates out of the casing and is connected to a brush head through the opening, and the brush head is forced to move the casing relative to the housing;

[0010] A detection assembly is arranged in the shell, and the detection assembly comprises a first detection member and a second detection member. The first detection member is connected to the casing and moves with the casing relative to the shell. The second detection member cooperates with the first detection member to detect the pressure applied to the brush head.

[0011] In some embodiments, the motor is configured such that the output shaft has an initial position which is reset when the motor is started. When the output shaft is reset to the initial position when the motor is started, the bristles of the brush head are directed towards a first direction. When the output shaft is subjected to a force opposite to the first direction, the casing moves, and the first detection member cooperates with the second detection member to detect the pressure applied to the brush head.

[0012] In some embodiments, the motor is configured such that the output shaft rotates within a preset angular range. When the output shaft is subjected to a force, the casing moves, and the first detection member cooperates with the second detection member to detect the pressure applied to the brush head.

[0013] In some embodiments, when the output shaft rotates beyond the preset angular range, the motor is configured to be powered to reset the output shaft to within the preset angular range.

[0014] In some embodiments, the output shaft of the motor has an initial position which is adjustable, and the adjustable angle of the initial position is within the preset angular range.

[0015] In some embodiments, the toothbrush further comprises:

[0016] A reset member is arranged in the shell and acts on the casing. The reset member is used to drive the casing to reset after the pressure applied to the brush head is removed.

[0017] In some embodiments, the reset member comprises a reset spring.

[0018] A third mounting bracket is arranged in the shell, and the third mounting bracket is located on one side of the motor. One end of the reset spring is connected to the third mounting bracket, and the other end of the reset spring acts on the casing.

[0019] In some embodiments, the casing has at least two moving directions.

[0020] The detection assembly comprises at least two groups. Each group of the detection assembly cooperates with the first detection member through the second detection member to detect the moving state of the casing in one of the moving directions, so as to detect the pressure applied to the brush head.

[0021] In some embodiments, a plurality of reset members are arranged. Each reset member is used to apply a force to the casing to reset the casing in one of the moving directions.

[0022] In some embodiments, the housing is provided with a movable first mounting bracket, the motor is fixedly connected with the first mounting bracket, and the first detection member is connected to the housing through the first mounting bracket; or,

[0023] The first detection member is arranged on the outer wall of the housing.

[0024] In some embodiments, the first detection member is located at an end of the housing away from the output shaft; or,

[0025] The first detection member is located in an end surface of an end of the housing away from the output shaft.

[0026] In some embodiments, the second detection member is arranged on the inner wall of the housing; or,

[0027] The housing is provided with a second mounting bracket, the second mounting bracket is located on one side of the motor, and the second detection member is arranged on the second mounting bracket; or,

[0028] The housing is provided with a circuit board, the circuit board is located on one side of the motor, and the second detection member is arranged on the circuit board and electrically connected with the circuit board.

[0029] In some embodiments, the detection assembly is a contact detection assembly, one of the first detection member and the second detection member is a contact switch, and the other is a contact member, the contact member is used to trigger the contact switch to send an electrical signal.

[0030] In some embodiments, the housing is provided with a movable first mounting bracket, the motor is fixedly connected with the first mounting bracket, and the first detection member is a contact member, the contact member is a first protrusion protruding from the first mounting bracket; or,

[0031] The first detection member is arranged on the outer wall of the housing, the first detection member is a contact member, and the contact member is a second protrusion protruding from the outer wall of the housing.

[0032] In some embodiments, the second detection member is an electrical component, and the first detection member is a non-electrical component.

[0033] In some embodiments, the detection assembly is a non-contact detection assembly, the non-contact detection assembly includes at least one of a camera detection device, a laser detection device, a radar detection device, and an infrared detection device.

[0034] In some embodiments, the detection assembly comprises a camera detection device and a magnifying piece, the camera detection device comprises a camera and an identification piece, one of the camera and the identification piece is a first detection piece, and the other is a second detection piece, and the magnifying piece is used to magnify the image of the identification piece for the camera to capture.

[0035] The application also provides an electric toothbrush, which comprises a brush head and a toothbrush handle as described above, and the brush head is connected with the output shaft of the motor.

[0036] The toothbrush handle and the electric toothbrush provided by the application have the following advantages: the first detection piece of the detection assembly is connected with the shell of the motor, and the second detection piece cooperates with the first detection piece to detect the pressure received by the brush head, so that neither the second detection piece nor the first detection piece rotates with the rotor, thereby avoiding the winding of the wire connected with the detection assembly, and eliminating the risk of the wire connected with the detection assembly being pulled off, and ensuring the reliability and service life of the electric toothbrush. BRIEF DESCRIPTION OF DRAWINGS

[0037] Fig. 1 is a structural schematic view of a toothbrush handle in an embodiment of the application;

[0038] Fig. 2 is a structural schematic view of the toothbrush handle in another view in the embodiment of Fig. 1;

[0039] Fig. 3 is a sectional view of the toothbrush handle along the direction of A-A in Fig. 2;

[0040] Fig. 4 is an enlarged view of B in Fig. 3;

[0041] Fig. 5 is a structural schematic view of a part of the toothbrush handle in an embodiment of the application;

[0042] Fig. 6 is a structural schematic view of another part of the toothbrush handle in an embodiment of the application;

[0043] Fig. 7 is a simplified schematic view of the cooperation between a detection assembly and a motor in an embodiment of the application;

[0044] Fig. 8 is a simplified schematic view of the cooperation between a detection assembly and a motor in another embodiment of the application;

[0045] Fig. 9 is a simplified schematic view of the cooperation between a detection assembly and a motor in another embodiment of the application;

[0046] Fig. 10 is a simplified schematic view of the cooperation between a detection assembly and a motor in another embodiment of the application;

[0047] Fig. 11 is a structural schematic view of an electric toothbrush in an embodiment of the application.

[0048] The meanings of the reference signs in the drawings are as follows:

[0049] 100 - toothbrush handle;

[0050] 110 - housing; K - opening;

[0051] 120 - motor; 121 - casing; 122 - stator; 123 - rotor; 124 - output shaft;

[0052] 130 - detection assembly; 131 - first detection member; 1311 - contact member; 1312 - identification member; 132 - second detection member; 1321 - contact switch; 1322 - camera;

[0053] 140 - reset member; 141 - reset spring;

[0054] J1 - first mounting bracket; J3 - third mounting bracket; Z - rotation shaft; O - shaft hole; D - circuit board; F - magnifying member;

[0055] 200 - brush head; 210 - bristles. DETAILED DESCRIPTION

[0056] The scheme in the embodiments of the present application will be described in detail below with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0057] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0058] It should also be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element.

[0059] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0060] To solve the technical problems mentioned in the background, the toothbrush handle 100 is provided in the embodiments of the present application.

[0061] Referring to FIGS. 1-4, the toothbrush handle 100 includes a shell 110, a motor 120, and a detection assembly 130. The shell 110 is provided with an opening K. The motor 120 includes a housing 121, a stator 122, a rotor 123, and an output shaft 124. The housing 121 is movably mounted in the shell 110. The stator 122 and the rotor 123 are both arranged in the housing 121. The stator 122 is fixed relative to the housing 121. The output shaft 124 is connected with the rotor 123 and can rotate with the rotor 123 relative to the stator 122. The rotation angle of the rotor 123 relative to the stator 122 is not less than 60°. One end of the output shaft 124 penetrates through the housing 121 and is connected with the brush head 200 through the opening K. The brush head 200 is forced to drive the housing 121 to move relative to the shell 110. The detection assembly 130 is arranged in the shell 110. The detection assembly 130 includes a first detection member 131 and a second detection member 132. The first detection member 131 is connected with the housing 121 and moves with the housing 121 relative to the shell 110. The second detection member 132 cooperates with the first detection member 131 to detect the pressure received by the brush head 200.

[0062] The toothbrush handle 100 related to the embodiments is the main structure of the electric toothbrush, which is combined with the brush head 200 to form the whole electric toothbrush. In a common use scenario, when the user has a tooth brushing demand, the brush head 200 can be installed on the toothbrush handle 100 to perform tooth brushing care on the teeth. When there is no tooth brushing demand, the user can detach the brush head 200 from the toothbrush handle 100 and place them separately. As shown in FIGS. 2 and 3, the shell 110 of the toothbrush handle 100 of the present application usually has a long cylindrical shape. The inside of the shell 110 forms a containing space for containing a plurality of driving components, such as the motor 120 and the detection assembly 130. In addition, the inside of the shell 110 can also contain a control circuit board, a battery, and the like, which are not described in detail here.

[0063] As shown in FIG. 3 and FIG. 4, the motor 120 includes a housing 121, a stator 122 fixedly arranged in the housing 121, a rotor 123, and an output shaft 124 connected with the rotor 123, the rotor 123 can drive the output shaft 124 to rotate relative to the stator 122, and one end of the output shaft 124 penetrates through the housing 121. In the embodiment of the present application, the motor 120 can be a servo motor 120, and the rotation angle of the rotor 123 relative to the stator 122 can be 60°, 90°, 120°, 150°, 180°, etc. The rotation angle of the rotor 123 relative to the stator 122 can be actively controlled when the motor 120 operates, so that the rotor 123 can rotate relative to the stator 122 by the angle, or the output shaft 124 of the motor 120 can rotate relative to the stator 122 by the angle when the output shaft 124 is subjected to an external force.

[0064] Continuing to refer to FIG. 3, the housing 110 is provided with an opening K, the output shaft 124 penetrates through the opening K, and the end of the output shaft 124 is configured as a thinned plane on both sides to connect the brush head 200. After the brush head 200 is connected with the output shaft 124, the brush head 200 reciprocally swings within a certain angle range under the driving of the motor 120, and in the process of contacting the teeth, the toothpaste is decomposed into fine foam to realize deep cleaning at the position of the tooth gap. It should be understood that the angle range of the swing of the brush head 200 can be set according to actual conditions, which is not limited herein.

[0065] In the embodiment of the present application, the housing 121 is movable relative to the housing 110. The movement of the housing 121 can include rotation, translation, etc., which can be set according to actual conditions. Alternatively, the housing 121 can be rotatably installed in the housing 110. Since the housing 121 is movable relative to the housing 110, when the brush head 200 is subjected to a force (for example, the bristles 210 of the brush head 200 are in contact with the teeth and are subjected to a force during tooth brushing), the force acting on the brush head 200 is transmitted to the output shaft 124 of the motor 120, so that the housing 121 rotates relative to the housing 110.

[0066] Referring to FIG. 4, the detection assembly 130 comprises a first detection member 131 and a second detection member 132, which cooperate to detect the pressure received by the brush head 200. The first detection member 131 is connected with the machine shell 121 and moves with the machine shell 121 relative to the outer shell 110, and the second detection member 132 is arranged in the outer shell 110 and fixed relative to the outer shell 110. Exemplarily, the second detection member 132 is located on the moving path of the first detection member 131, or the second detection member 132 is located on the moving direction of the first detection member 131, or the second detection member 132 is arranged opposite to the first detection member 131. In this way, during the movement of the first detection member 131 with the machine shell 121, the first detection member 131 moves relative to the second detection member 132 to be closer to or farther away from the second detection member 132, and the second detection member 132 cooperates with the first detection member 131 to detect the distance between them, thereby detecting the movement state of the machine shell 121 and the pressure received by the brush head 200. For example, when the second detection member 132 cooperates with the first detection member 131 to detect that the distance between them gradually decreases, it corresponds to the movement of the machine shell 121 in the first direction (e.g., clockwise rotation), and the pressure received by the brush head 200 gradually increases; when the second detection member 132 cooperates with the first detection member 131 to detect that the distance between them gradually increases, it corresponds to the movement of the machine shell 121 in the second direction (e.g., counterclockwise rotation), and the pressure received by the brush head 200 gradually decreases. In the embodiment of the present application, the types of the first detection member 131 and the second detection member 132 can be set according to actual conditions, which will be further described in subsequent embodiments and will not be described here.

[0067] In the embodiment of the present application, when the user holds the toothbrush handle 100 and contacts the teeth through the bristles 210 of the brush head 200, the force acting on the teeth is transmitted to the motor 120 through the brush head 200, so that the motor 120 as a whole moves, and the machine shell 121 of the motor 120 moves relative to the outer shell 110, and the second detection member 132 cooperates with the first detection member 131 to detect the pressure received by the brush head 200. Since the first detection member 131 is connected with the machine shell 121 of the motor 120, the pressure received by the brush head 200 is detected by cooperating the second detection member 132 with the first detection member 131, so that the second detection member 132 and the first detection member 131 will not follow the rotation of the rotor, thereby avoiding the winding of the wires connected with the detection assembly 130, and eliminating the risk of the wires connected with the detection assembly 130 being pulled off, thereby ensuring the reliability and service life of the electric toothbrush.

[0068] In some embodiments, the motor 120 is configured to have the output shaft 124 with an initial position reset at start-up, the bristles 210 of the brush head 200 are directed towards the first direction when the output shaft 124 is reset to the initial position at start-up of the motor 120, and the shell 121 is movable when the output shaft 124 is subjected to a force opposite to the first direction, and the first detection member 131 and the second detection member 132 cooperate to detect the pressure received by the brush head 200.

[0069] In the present embodiment, the motor 120 has a reset function of the output shaft 124, and the motor 120 is controlled to reset the output shaft 124 to the initial position at start-up. When the motor 120 is started and the output shaft 124 is reset to the initial position, the bristles 210 of the brush head 200 are directed towards the first direction. In actual application scenarios, when a user uses the electric toothbrush, the user controls the electric toothbrush to start by operating the switch key, and the motor 120 is correspondingly powered on to start and control the output shaft 124 to reset to the initial position, and the brush head 200 rotates with the output shaft 124 to direct the brush head 200 towards the first direction.

[0070] Further, when brushing teeth, the bristles 210 are directed towards and contact the teeth, so that the output shaft 124 is subjected to a force opposite to the first direction, and under the action of the force, the shell 121 is movable, and the first detection member 131 and the second detection member 132 cooperate to detect the pressure received by the brush head 200.

[0071] It should be understood that, according to the detection design of the toothbrush handle, when the output shaft 124 is subjected to a force opposite to the first direction, the shell 121 can be moved, the amplitude of the movement of the shell 121 is consistent with the amplitude of the movement under a preset standard stress condition, and the first detection member 131 and the second detection member 132 can be correspondingly and accurately detected to detect the pressure received by the brush head 200. Therefore, by controlling the output shaft 124 to reset to the initial position at start-up of the motor 120, the bristles 210 are directed towards the first direction, so that when the bristles 210 contact the teeth for brushing, the output shaft 124 is subjected to a force opposite to the first direction, thereby achieving accurate detection of the pressure received by the brush head 200.

[0072] In some embodiments, the motor 120 is configured to have the output shaft 124 rotate within a preset angle range, the output shaft 124 is subjected to a force, the shell 121 is movable, and the first detection member 131 and the second detection member 132 cooperate to detect the pressure received by the brush head 200. In the present embodiment, the preset angle range can be set according to actual conditions, and no limitation is made thereto. For example, the preset angle range can be +30° to -30°, and the motor 120 controls the output shaft 124 to rotate within +30° to -30°. Alternatively, when the output shaft 124 rotates to 0°, the bristles 210 of the brush head 200 are directed towards the first direction.

[0073] According to the detection design of the toothbrush handle, when the rotation angle of the output shaft 124 is within the non-pre-set angle range, the orientation of the brush head 200 does not match the orientation of the shell 121 under the force of the brush head 200, in which case, even if the output shaft 124 is under force, the shell 121 can not move or the amplitude of the movement of the shell 121 does not match the amplitude of the movement under the pre-set standard force, resulting in the inability to detect the pressure on the brush head 200 or inaccurate detection of the pressure on the brush head 200.

[0074] Therefore, by configuring the motor 120 to rotate the output shaft 124 within the pre-set angle range, when the output shaft 124 is under force, the shell 121 can move, and the amplitude of the movement of the shell 121 substantially matches the amplitude of the movement under the pre-set standard force, and the first detection member 131 and the second detection member 132 can cooperate to detect the pressure on the brush head 200, achieving accurate detection of the pressure on the brush head 200.

[0075] In some embodiments, when the output shaft 124 rotates to the non-pre-set angle range, the motor 120 is configured to power on to reset the output shaft 124 to the pre-set angle range. In the embodiments of the present application, the motor 120 is configured to power on to reset the output shaft 124 to the pre-set angle range when the output shaft 124 rotates to the non-pre-set angle range. In actual application, the output shaft 124 can be rotated to the non-pre-set angle range due to factors such as external force caused by collision, impact, etc., thereby causing the pressure on the brush head 200 to be unable to be detected or detected inaccurately. Therefore, when the output shaft 124 rotates to the non-pre-set angle range, the motor 120 is configured to power on to reset the output shaft 124 to the pre-set angle range, so as to automatically correct and rectify the rotation angle of the output shaft 124, so as to accurately detect the pressure on the brush head 200.

[0076] In some embodiments, the output shaft 124 of the motor 120 has an initial position, and the initial position is adjustable, and the adjustable angle of the initial position is within a preset angle range. In the embodiments of the present application, the motor 120 is configured to have an initial position of the output shaft 124, and the initial position is adjustable, and the adjustable angle of the initial position is within a preset angle range. When the motor 120 is powered on, the output shaft 124 of the motor 120 can be controlled to rotate to the initial position. The motor 120 has an initial position adjustment function of the output shaft 124, and the adjustable angle of the initial position of the output shaft 124 is within a preset angle range, so as to ensure that when the output shaft 124 is located at the initial position, the rotation angle of the output shaft 124 corresponds to a preset angle range, thereby enabling the shell 121 to move when the output shaft 124 is subjected to a force, and the movement amplitude of the shell 121 is substantially consistent with the movement amplitude when the preset standard force condition is met, and the first detection member 131 and the second detection member 132 can be correspondingly matched to detect the pressure received by the brush head 200, thereby achieving accurate detection of the pressure received by the brush head 200.

[0077] The motor 120 is configured to mean that the motor 120 is provided with an electrical control device, by which the output shaft 124 of the motor 120 can be set to rotate only within a preset angle range, and / or the motor 120 can be set to reset the output shaft 124 to the preset angle range when the output shaft 124 rotates to a non-preset angle range, and / or the output shaft 124 of the motor 120 can be set to have an adjustable initial position, and the adjustable angle of the initial position is within a preset angle range.

[0078] In the above embodiments, the rotation angle of the output shaft 124 can be detected and obtained by configuring an angle sensor, which can be a Hall sensor or the like, and can be set according to actual conditions.

[0079] Referring to FIGS. 5 and 6, in the embodiments of the present application, the toothbrush handle 100 can further include a reset member 140 arranged in the housing 110 and acting on the shell 121, and the reset member 140 is used to drive the shell 121 to reset after the pressure received by the brush head 200 is removed. Exemplarily, after the pressure received by the brush head 200 is removed, the shell 121 is automatically reset by the reset member 140 arranged therein, so as to perform the next pressure detection of the brush head 200.

[0080] The reset member 140 in the embodiments of the present application can include a reset spring 141, and the housing 110 is provided with a third mounting bracket J3 located on one side of the motor 120, one end of the reset spring 141 is connected with the third mounting bracket J3, and the other end of the reset spring 141 acts on the shell 121.

[0081] In combination with the foregoing embodiments, the third mounting frame J3 can be combined with the first mounting frame J1, as shown in FIG. 6, the third mounting frame J3 is formed with the aforementioned shaft hole O, and the first mounting frame J1 is rotatably mounted on the third mounting frame J3. One end of the reset spring 141 is connected with the third mounting frame J3, and the other end is connected with the first mounting frame J1 to act on the shell 121.

[0082] In the embodiments of the present application, one or more reset springs 141 can be provided, as shown in FIG. 7, two reset springs 141 are provided, and the two reset springs 141 are located on opposite sides of the detection assembly 130.

[0083] When the brush head 200 is subjected to pressure (such as the brush head 200 being subjected to force due to contact with teeth), the shell 121 moves, and the reset spring 141 is deformed to accumulate elastic potential energy; when the pressure on the brush head 200 is removed (such as the bristles 210 of the brush head 200 being separated from the teeth), the reset spring 141 returns to its original shape to release the elastic potential energy, and the reset spring 141 drives the shell 121 to move, and the shell 121 returns to its original position under the elastic force of the reset spring 141.

[0084] Referring to FIG. 9, in the embodiments of the present application, the shell 121 has at least two movement directions;

[0085] The detection assembly 130 includes at least two groups, and each group of detection assembly 130 detects the movement state of the shell 121 in one of the movement directions through cooperation of the second detection member 132 and the first detection member 131, to detect the pressure on the brush head 200.

[0086] In the embodiments, according to the multiple movement directions of the shell 121, multiple groups of detection assembly 130 are provided, and each group of detection assembly 130 is responsible for detecting the movement state of the shell 121 in one of the movement directions, to detect the pressure on the brush head 200. For example, in combination with the foregoing embodiments, the shell 121 rotates, the shell 121 has a counterclockwise rotation direction and a clockwise rotation direction, and the detection assembly 130 includes two groups, one group of detection assembly 130 is arranged on the side of the counterclockwise direction of the shell 121, to detect the movement state of the shell 121 in the counterclockwise rotation direction through cooperation of the second detection member 132 and the first detection member 131, to detect the pressure on the brush head 200; and the other group is arranged on the side of the clockwise direction of the shell 121, to detect the movement state of the shell 121 in the clockwise rotation direction through cooperation of the second detection member 132 and the first detection member 131, to detect the pressure on the brush head 200.

[0087] When the brush head 200 is pressed to rotate the casing 121, the multiple sets of detection assemblies 130 correspondingly detect the activity state of the casing 121 in the respective corresponding activity direction in real time, and then the detection data detected by the multiple sets of detection assemblies 130 can be compared and verified with each other to improve the accuracy of the detection data and realize accurate detection of the pressure on the brush head 200.

[0088] Referring to FIG. 10, in the foregoing embodiments, since the casing 121 has multiple activity directions, the reset member 140 is also provided as multiple, and each reset member 140 is used to apply an action force to the casing 121 to reset it in one of the activity directions.

[0089] In the embodiment, according to the multiple activity directions of the casing 121, multiple reset members 140 are correspondingly provided, and each reset member 140 assists the casing 121 to reset in one of the activity directions. For example, in combination with the foregoing embodiments, the activity form of the casing 121 is rotation, the casing 121 has a counterclockwise rotation direction and a clockwise rotation direction, and the reset member 140 includes two, one of which is arranged on the side where the counterclockwise rotation direction of the casing 121 is located to apply an action force to the casing 121 to reset it in the clockwise direction; and the other is arranged on the side where the clockwise rotation direction of the casing 121 is located to apply an action force to the casing 121 to reset it in the counterclockwise direction. Through the multiple reset members 140, the casing 121 can be accurately reset in multiple directions.

[0090] In the embodiment, the first detection member 131 has multiple installation modes. Referring to FIGS. 4 and 5, in a preferred embodiment, a first movable mounting frame J1 is arranged in the housing 110, the motor 120 is fixedly connected with the first mounting frame J1, and the first detection member 131 is connected with the casing 121 through the first mounting frame J1.

[0091] The first mounting frame J1 in the embodiment is movably arranged in the shell. The frame body of the first mounting frame J1 can be a semi-closed frame body, which is configured with a receiving groove in which a half side of a casing 121 of a motor 120 is arranged. In the embodiment, the first mounting frame J1 is rotatable relative to the shell. Further, referring to FIGS. 5 and 6, the first mounting frame J1 is connected with a rotating shaft Z at symmetrical positions relative to two sides, respectively. The first mounting frame J1 is inserted into a shaft hole O through the rotating shaft Z, so as to be rotatably arranged relative to the shell 110. Further, an axis of the rotating shaft Z can coincide with a rotating axis of the casing 121. The shaft hole O can be formed on other components in the shell 110 or on an inner wall of the shell 110. In the embodiment, the first detection member 131 is arranged on the first mounting frame J1, and the first detection member 131 is connected with the casing 121 through the first mounting frame J1, that is, the first detection member 131 is indirectly connected with the casing 121. When the brush head 200 is forced to move the casing 121, the casing 121 drives the first mounting frame J1 to move, and further drives the first detection member 131 arranged on the first mounting frame J1 to move with the casing 121.

[0092] In another preferred embodiment of the application, the first detection member 131 can be arranged on an outer wall of the casing 121, that is, the first detection member 131 is directly connected with the casing 121. For example, the first detection member 131 can be arranged on a peripheral wall of the casing 121 or an outer end wall of the casing 121. When the brush head 200 is forced to move the casing 121, the first detection member 131 arranged on the outer wall of the casing 121 moves with the casing 121.

[0093] The position of the first detection member 131 also has multiple options. Referring to FIGS. 5 and 6, in a preferred embodiment, the first detection member 131 is located at an end of the casing 121 away from the output shaft 124. The first detection member 131 can be arranged on the first mounting frame J1 connected with the motor 120 or on the outer wall of the casing 121. Regardless of the above arrangement, the first detection member 131 is located at an end of the casing 121 away from the output shaft 124. In the embodiment, since the first detection member 131 is arranged at an end of the casing 121 away from the output shaft 124, when the brush head 200 is forced to rotate the casing 121, the end of the casing 121 away from the output shaft 124 has the largest rotation range. The second detection member 132 cooperates with the first detection member 131 to more accurately detect the distance change between the two, so as to accurately detect the movement state of the casing 121, thereby improving the detection accuracy of the pressure of the brush head 200.

[0094] Referring to FIG. 5, in the embodiment of the present application, the first detection member 131 can also be installed in the end face of the casing 121 away from the output shaft 124, that is, the setting position of the first detection member 131 does not exceed the edge of the end face of the casing 121. The embodiment of the present application rationally utilizes the radial space of the casing 121 in the shell 110 to set the first detection member 131, thereby improving the structural compactness of the toothbrush handle. Compared with the arrangement scheme of setting the first detection member 131 on the peripheral side of the casing 121, the radial dimension of the shell 110 can be reduced.

[0095] In the embodiment, the second detection member 132 also has various implementation manners, as long as the condition of cooperating with the first detection member 131 for detection is met. For example, in the foregoing embodiment, the first detection member 131 is arranged in the end face of the casing 121 away from the output shaft 124, and the second detection member 132 can also be arranged in the end face of the casing 121 away from the output shaft 124 and arranged opposite to the first detection member 131. Since the setting position of the second detection member 132 also does not exceed the edge of the end face, the structural compactness can be further improved.

[0096] In a preferred embodiment, the second detection member 132 can also be arranged on the inner wall of the shell 110. The second detection member 132 is arranged on the inner wall of the shell 110, that is, the second detection member 132 is directly connected with the shell 110. The arrangement form of the second detection member 132 on the inner wall of the shell 110 can be detachable arrangement or fixed arrangement, which can be set according to the actual situation of the type of device adopted by the second detection member 132. In another preferred embodiment, a second mounting rack is arranged in the shell 110, the second mounting rack is relatively fixed with the shell 110 in the shell 110, and the second mounting rack can be used to assist in mounting other components in the shell 110. Further, the second detection member 132 is arranged on the second mounting rack, wherein the arrangement form of the second detection member 132 on the second mounting rack can be detachable arrangement or fixed arrangement, which can be set according to the actual situation of the type of device adopted by the second detection member 132. Referring to FIGS. 4 and 5, in another preferred embodiment, a circuit board D is arranged in the shell 110, the circuit board D is located on one side of the motor 120, and the second detection member 132 is arranged on the circuit board D and electrically connected with the circuit board D. In the embodiment of the present application, the circuit board D is detachably arranged in the shell 110 and relatively fixed with the shell 110. The circuit board D can be a main control circuit board, or can be an auxiliary control circuit board, or can be a circuit board for other functions. The second detection member 132 is arranged on the circuit board D and electrically connected with the circuit board D, so that the second detection member 132 and the circuit board D do not need to be additionally wired, thereby avoiding the structural interference between the wires and other structures in the shell 110 and stabilizing the signal transmission.

[0097] In the embodiments of the present application, the type of the detection assembly 130 has multiple choices. Referring to FIGS. 4-7, in some embodiments, the detection assembly 130 can be a contact detection assembly, one of the first detection member 131 and the second detection member 132 is a contact switch 1321, and the other is a contact member 1311, the contact member 1311 is used to trigger the contact switch 1321 to send an electrical signal. In the embodiments, the detection assembly 130 adopts the contact detection assembly, which has high detection accuracy and reliable work. The first detection member 131 can be the contact switch 1321, and the second detection member 132 can be the contact member 1311, or the second detection member 132 can be the contact switch 1321, and the first detection member 131 can be the contact member 1311. When the brush head 200 is stressed to move the shell 121, the first detection member 131 of the detection assembly 130 contacts the second detection member 132, for example, the contact member 1311 contacts the contact switch 1321 to trigger it, so that the contact switch 1321 sends an electrical signal, and then detects the moving state of the shell 121 to detect the pressure of the brush head 200. Optionally, the contact switch 1321 is a micro switch, and the trigger part of the micro switch faces the contact member 1311, and the contact member 1311 can trigger the trigger part of the micro switch by contacting it.

[0098] Referring to FIGS. 4 and 5, in some embodiments, the first detection member 131 is the contact member 1311, and the contact member 1311 is a first protrusion protruding from the first mounting bracket J1. The first protrusion can be integrally formed with the first mounting bracket J1. When the brush head 200 is stressed to move the shell 121, the shell 121 drives the first mounting bracket J1 to move, and then the first protrusion on the first mounting bracket J1 triggers the contact switch 1321.

[0099] Alternatively, in some embodiments, the first detection member 131 is arranged on the outer wall of the shell 121, and the first detection member 131 is a contact member 1311, and the contact member 1311 is a second protrusion protruding from the outer wall of the shell 121. The second protrusion can be integrally formed with the shell 121. When the brush head 200 is stressed to move the shell 121, the second protrusion on the shell 121 triggers the contact switch 1321.

[0100] In the embodiments of the present application, the second detection member 132 can be an electrical component, and the first detection member 131 can be a non-electrical component. It should be noted that the electrical component in the embodiments of the present application refers to a component that needs to be powered for use, and the non-electrical component refers to a component that does not need to be powered for use. The second detection member 132 is an electrical component, and the first detection member 131 is also an electrical component. The combination of the two can be in various forms, for example, the second detection member 132 can be the contact switch 1321 mentioned in the foregoing embodiments, and the first detection member 131 can be the contact member 1311 mentioned in the foregoing embodiments, for example, the first protrusion, the second protrusion, etc. In addition, it can also be other forms, for example, the second detection member 132 can be a camera, and the first detection member 131 can be a protrusion for camera recognition, etc. The actual situation can be set.

[0101] Since the first detection member 131 is not powered, the first detection member 131 will not heat up during use, and thus will not affect the working performance of the motor 120 due to heating. In addition, the first detection member 131 does not need to be connected by a wire, so that the winding phenomenon of the wire caused by the connection with the first detection member 131 can be completely avoided.

[0102] In other embodiments of the present application, the detection assembly 130 can also be a non-contact detection assembly. The non-contact detection assembly 130 includes at least one of a camera detection device, a laser detection device, a radar detection device, and an infrared detection device. In the embodiments of the present application, the detection assembly 130 adopts a non-contact detection assembly, which is less disturbed and damaged, and has a long service life. The non-contact detection assembly includes a camera detection device, a laser detection device, a radar detection device, and an infrared detection device. In actual application, the detection assembly 130 can adopt one or more of the camera detection device, the laser detection device, the radar detection device, and the infrared detection device, and the actual situation can be set. The detection assembly 130 can be provided with one or more. For example, when the detection assembly 130 is provided with one, the detection assembly 130 can adopt one of the camera detection device, the laser detection device, the radar detection device, and the infrared detection device. For example, when the detection assembly 130 is provided with multiple, the detection assembly 130 can adopt several of the camera detection device, the laser detection device, the radar detection device, and the infrared detection device. This is only exemplary, and is not limited.

[0103] Referring to FIG. 8, in a preferred embodiment of the present application, the detection assembly 130 comprises a camera detection device and a magnifying piece F. The camera detection device comprises a camera 1322 and an identification piece 1312. One of the camera 1322 and the identification piece 1312 is the first detection piece 131, and the other is the second detection piece 132. The magnifying piece F is used to magnify the image of the identification piece 1312 for the camera 1322 to capture. In this embodiment, the camera 1322 of the camera detection device can be defined as the first detection piece 131, and the identification piece 1312 can be defined as the second detection piece 132. Alternatively, the identification piece 1312 of the camera detection device can be defined as the first detection piece 131, and the camera 1322 can be defined as the second detection piece 132. As a preferred option, the first detection piece 131 adopts the identification piece 1312, and the second detection piece 132 adopts the camera 1322. When the brush head 200 is forced to move the casing 121, the camera 1322 captures the image of the identification piece 1312, detects the change in the distance between the identification piece 1312 and the camera 1322, and further detects the activity state of the casing 121, thereby detecting the pressure on the brush head 200. Alternatively, the identification piece 1312 can be a convex point that can be identified by the camera 1322, and the like, but is not limited thereto. Further, the detection assembly 130 further comprises a magnifying piece F. The magnifying piece F can be arranged at the front end of the camera 1322, and magnifies the image of the identification piece F for the camera 1322 to capture, which can improve the identification accuracy of the camera 1322, thereby improving the detection accuracy. Alternatively, the magnifying piece F can be a lens that can magnify the image of an object.

[0104] The present application also provides an electric toothbrush. Referring to FIG. 11, the electric toothbrush comprises a brush head 200 and a toothbrush handle 100 as described in the foregoing embodiments. The brush head 200 is connected to the output shaft 124 of the motor 120. The structure of the toothbrush handle 100 is described with reference to the foregoing embodiments. Since the electric toothbrush adopts all the technical solutions of the foregoing embodiments, it at least has all the technical effects brought by the technical solutions of the foregoing embodiments, which will not be described herein. The brush head 200 is detachably sleeved on the output shaft 124 of the motor 120 and can rotate with the output shaft 124 of the motor 120.

[0105] The above description is only some or optional embodiments of the present application, and neither the text nor the drawings can limit the scope of protection of the present application. Any equivalent structural transformation based on the content of the specification and drawings, or direct / indirect application in other related technical fields is included in the scope of protection of the present application.

Claims

1. A toothbrush handle comprising: a housing provided with an opening; a motor comprising a housing, a stator, a rotor and an output shaft, the housing being movably mounted in the housing, the stator and the rotor being arranged in the housing, the stator being fixed relative to the housing, the output shaft being connected with the rotor and being rotatable with the rotor relative to the stator, the rotor being rotatable relative to the stator by an angle of not less than 60°, one end of the output shaft extending out of the housing and being connected with a brush head through the opening, the brush head being movable to drive the housing to move relative to the housing under force; and a detection assembly arranged in the housing, the detection assembly comprising a first detection member and a second detection member, the first detection member being connected with the housing and being movable with the housing relative to the housing, the second detection member being cooperated with the first detection member to detect the pressure applied to the brush head.

2. The toothbrush handle of claim 1, wherein, The motor is configured such that the output shaft has an initial position which is reset when the motor is started, the bristles of the brush head are directed to a first direction when the output shaft is reset to the initial position when the motor is started; the housing is movable when the output shaft is subjected to a force opposite to the first direction, and the first detection member and the second detection member are cooperated to detect the pressure applied to the brush head.

3. The toothbrush handle of claim 1, wherein, The motor is configured such that the output shaft is rotatable within a preset angle range, the housing is movable when the output shaft is subjected to a force, and the first detection member and the second detection member are cooperated to detect the pressure applied to the brush head.

4. The toothbrush handle of claim 3, wherein, The motor is configured such that the output shaft is reset to the preset angle range when the output shaft is rotated to a non-preset angle range and the motor is powered on.

5. The toothbrush handle of claim 3, wherein, The output shaft of the motor has an initial position which is adjustable, and the adjustable angle of the initial position is within the preset angle range.

6. The toothbrush handle of any one of claims 1 to 5, wherein, Further comprising: a reset member arranged in the housing and acting on the housing, the reset member being configured to drive the housing to reset after the pressure applied to the brush head is removed.

7. The toothbrush handle of claim 6, wherein, The reset member comprises a reset spring. A third mounting frame is arranged in the housing, the third mounting frame being located at one side of the motor, one end of the reset spring being connected with the third mounting frame, and the other end of the reset spring acting on the housing. The housing has at least two movable directions.

8. The toothbrush handle of claim 6, wherein, The detection assembly comprises at least two groups, each group of the detection assembly being cooperated with the first detection member through the second detection member to detect the movable state of the housing in one of the movable directions, so as to detect the pressure applied to the brush head. The reset member is provided with a plurality of reset members, each of the reset members being configured to apply a force to the housing to reset the housing in one of the movable directions.

9. The toothbrush handle of claim 8, wherein, The first detection member is connected to the housing through the first mounting frame; or 10. The toothbrush handle of any one of claims 1 to 5, wherein, The first detection member is arranged on the outer wall of the housing. The first detection member is located at one end of the housing away from the output shaft; or 11. The toothbrush handle of claim 10, wherein, The first detection member is located in the end face of one end of the housing away from the output shaft. The second detection member is arranged on the inner wall of the housing; or 12. The toothbrush handle of any one of claims 1 to 5, wherein, ​ The second mounting rack is arranged in the shell and located at one side of the motor, and the second detection member is arranged on the second mounting rack. The circuit board is arranged in the shell and located at one side of the motor, and the second detection member is arranged on the circuit board and electrically connected with the circuit board.

13. The toothbrush handle of claim 1, wherein, The detection assembly is a contact type detection assembly, one of the first detection member and the second detection member is a contact type switch, and the other is a contact member, the contact member is arranged to trigger the contact type switch, so that the contact type switch sends an electric signal.

14. The toothbrush handle of claim 13, wherein, The first mounting rack is movably arranged in the shell, the motor is fixedly connected with the first mounting rack, the first detection member is a contact member, and the contact member is a first protrusion protruding from the first mounting rack. The first detection member is arranged on the outer wall of the shell, the first detection member is a contact member, and the contact member is a second protrusion protruding from the outer wall of the shell.

15. The toothbrush handle of any one of claims 1 to 5, 13 to 14, wherein, The second detection member is an electric component, and the first detection member is a non-electric component.

16. The toothbrush handle of claim 1, wherein, The detection assembly is a non-contact type detection assembly, and the non-contact type detection assembly comprises at least one of a camera detection device, a laser detection device, a radar detection device and an infrared detection device.

17. The toothbrush handle of claim 16, wherein, The detection assembly comprises a camera detection device and a magnifying member, the camera detection device comprises a camera and an identification member, one of the camera and the identification member is the first detection member, and the other is the second detection member, and the magnifying member is arranged to magnify the image of the identification member for the camera to capture.

18. An electric toothbrush comprising a brush head and the toothbrush handle according to any one of claims 1 to 17, wherein the brush head is connected with the output shaft of the motor.

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