Ultrasound apparatus

Abstract

The utility model provides ultrasonic equipment, which comprises an ultrasonic head, an ultrasonic probe, an ultrasonic probe and a power supply, the transducer is installed in the shell, and the shell is provided with a first connecting part and an acting surface used for transmitting the ultrasonic waves to the external environment; the circuit board is installed in the shell and electrically connected with the transducer, and the circuit board is provided with a first electric contact; the host comprises a second electric contact and a second connecting part; wherein the ultrasonic head has an initial assembly position and a target assembly position relative to the host; when the ultrasonic head is located at the initial assembly position, the first connecting part and the second connecting part are separated from each other, and the ultrasonic head can be separated from the host; and when the ultrasonic head is located at the target assembly position, the first connecting part and the second connecting part are matched, the movement of the ultrasonic head relative to the host is limited, and the first electric contact is electrically connected with the second electric contact.

Description

Technical Field

[0001] The utility model relates to the field of electronic equipment, in particular to an ultrasonic device. Background Art

[0002] Ultrasound equipment has been widely used in personal physical therapy or nursing. In order to meet the increasingly diverse usage needs of users, in the past few years, ultrasonic electronic devices available on the market have appeared in the form of detachable attachment of ultrasonic heads and main units. Different ultrasonic heads meet the versatility requirements of the equipment through their replaceable types.

[0003] In the above-mentioned system where the host and the ultrasound head are connected to each other, it is more common that the ultrasound head is attached to the host by snap-on or magnetic attraction. The interactive experience generated each time the user removes or connects the ultrasound head to the host is relatively simple, and may be accompanied by connection stability issues due to the snap-on or magnetic attachment method, which does not provide users with a good experience. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic device, wherein a main unit and an ultrasonic head are rotatably detachably connected.

[0005] An embodiment of the present invention provides an ultrasonic device, comprising:

[0006] Ultrasound head, including:

[0007] a transducer for generating ultrasonic waves;

[0008] a housing, wherein the transducer is mounted in the housing, and wherein the housing has a first connecting portion and an active surface for transmitting the ultrasonic wave to the external environment;

[0009] a circuit board installed in the housing and electrically connected to the transducer, the circuit board having a first electrical contact; and a host comprising: a second electrical contact and a second connecting portion;

[0010] The ultrasonic head has an initial assembly position and a target assembly position relative to the host, and the ultrasonic head can rotate around a first axis between the initial assembly position and the target assembly position; when the ultrasonic head is in the initial assembly position, the first connecting portion and the second connecting portion are disengaged, and the ultrasonic head can be separated from the host; when the ultrasonic head is in the target assembly position, the first connecting portion and the second connecting portion cooperate and limit the movement of the ultrasonic head relative to the host, and electrically connect the first electrical contact and the second electrical contact.

[0011] As a further improvement of an embodiment of the present invention, the ultrasonic device includes at least two different ultrasonic heads, and the different ultrasonic heads have transducers with different resonant frequencies. The at least two different ultrasonic heads can be selectively assembled on the host to generate ultrasonic waves of different frequencies.

[0012] As a further improvement of an embodiment of the present invention, one of the first connecting portion and the second connecting portion includes at least two connecting ribs arranged at intervals, and the other of the first connecting portion and the second connecting portion includes at least two connecting grooves, and the interval between any two adjacent connecting grooves forms a spacing area, the spacing area is used to accommodate the connecting ribs in the initial assembly position, and the connecting groove is used to cooperate with the connecting ribs in the target assembly position to limit the axial movement of the ultrasonic head relative to the host along the first axis.

[0013] As a further improvement of one embodiment of the present invention, a limit block is provided at one end of the connecting rib, and the limit block is used to prevent the ultrasonic head from rotating along the first direction after the ultrasonic head rotates from the initial assembly position to the target assembly position along the first direction relative to the main unit.

[0014] As a further improvement of one embodiment of the present invention, the first connecting part has a first connecting cavity, and the connecting rib is arranged on the side wall of the first connecting cavity; the second connecting part has a second connecting cavity, and the connecting groove is arranged in the second connecting cavity.

[0015] As a further improvement of one embodiment of the present invention, the second connecting portion includes a protrusion formed in the second connecting cavity, the protrusion includes raised portions arranged at intervals, and the connecting groove is arranged on the raised portions; a gap is left between the circumferential surface of the raised portion and the inner wall of the second connecting cavity for accommodating the side wall of the first connecting cavity.

[0016] As a further improvement of an embodiment of the present invention, the first connecting cavity has a plurality of accommodating portions that are matched one-to-one with the protrusions in the initial assembly position, one of the plurality of accommodating portions is a directional accommodating portion, the size and / or shape of the directional accommodating portion is different from that of other accommodating portions, and the protrusion includes a directional protrusion that can only be matched with the directional accommodating portion.

[0017] As a further improvement of one embodiment of the present invention, one of the first connecting portion and the second connecting portion includes an elastic member, and the other includes an abutting portion, the abutting portion includes a positioning groove, and when the ultrasonic head is located in the target assembly position, the elastic member is placed in the positioning groove to limit the rotation of the ultrasonic head relative to the host.

[0018] As a further improvement of an embodiment of the present invention, the abutting portion is arranged on the bottom wall of the first connecting cavity, and the elastic member is at least partially protruded from the bottom wall of the second connecting cavity.

[0019] As a further improvement of an embodiment of the present invention, the ultrasonic device is a handheld device, the main unit has a handle, and the angle between the length direction of the handle and the active surface is 10°-40°.

[0020] The ultrasonic device provided by the present invention has an ultrasonic head that is rotatably detachably connected to the host, and the user can quickly remove the ultrasonic head from the host or install the ultrasonic head on the host. Therefore, the user can choose to install different ultrasonic heads according to their needs, thereby meeting the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of an electronic device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 The schematic diagram shows the electronic device accessory and the host being separated;

[0023] Figure 3 for Figure 1 The three-dimensional diagram of Annex 1 shown;

[0024] Figure 4 for Figure 1 A three-dimensional schematic diagram of the host and a partial enlarged diagram of the second connecting portion are shown;

[0025] Figure 5 This is a schematic diagram of a host device that can be adapted to different accessories according to one embodiment of the present invention;

[0026] Figure 6 A cross-sectional view and a partially enlarged view of the main unit and the accessory after connection according to one embodiment of the present invention;

[0027] Figure 7 for Figure 4 The schematic diagram of the structure of the host at the second connection part shown;

[0028] Figure 8 for Figure 1 The schematic diagram of the structure of the accessory at the first connection portion shown;

[0029] Figure 9 for Figure 1 A schematic diagram showing the relative positional relationship between the accessory of the electronic device and the protrusion when the accessory is in the initial assembly position;

[0030] Figure 10 for Figure 1A schematic diagram showing the relative positional relationship between the accessory of the electronic device and the protrusion when the accessory is in the target assembly position;

[0031] Figure 11 for Figure 1 A schematic diagram showing the relative positional relationship between the accessory of the electronic device and the protrusion when the accessory is in an incorrect initial assembly position;

[0032] Figure 12 is a schematic diagram of a motion trajectory of an elastic member in one embodiment;

[0033] Figure 13 for Figure 12 Schematic diagram showing the change of elastic force of the elastic member with moving distance;

[0034] Figure 14 is a schematic diagram of the motion trajectory of the elastic member in another embodiment;

[0035] Figure 15 is a schematic diagram of a motion trajectory of an elastic member in yet another embodiment;

[0036] Figure 16 for Figure 15 Schematic diagram showing the change of elastic force of the elastic member with moving distance;

[0037] Figure 17 A schematic diagram showing how the elastic force of an elastic member varies with movement distance according to another embodiment;

[0038] Figure 18 is a schematic diagram showing how the elastic force of an elastic member varies with movement distance in yet another embodiment;

[0039] Figure 19 is a schematic cross-sectional structural diagram of an elastic member according to one embodiment;

[0040] Figure 20 is a schematic cross-sectional structural diagram of an elastic member in another embodiment;

[0041] Figure 21 is a schematic diagram of the motion trajectory of the electrical contacts in one embodiment;

[0042] Figure 22 is a schematic diagram of the motion trajectory of the electrical contacts in another embodiment;

[0043] Figure 23 is a schematic diagram of a point contact motion trajectory according to another embodiment;

[0044] Figure 24 for Figure 1 The schematic diagram of the cross-section of the appendix 1 shown;

[0045] Figure 25 for Figure 24The schematic structural diagram of the cross-section of the accessory after explosion shown;

[0046] Figure 26 It is a schematic structural diagram of a cross-section of an attachment according to another embodiment;

[0047] Figure 27 A schematic structural diagram of a cross-sectional view of an attachment portion of yet another embodiment;

[0048] Figure 28 Schematic diagram of the arrangement of the first electrical connector in one embodiment;

[0049] Figure 29 is a schematic diagram of the arrangement of the first electrical connector in another embodiment;

[0050] Figure 30 It is a schematic structural diagram of a cross-section of an accessory according to yet another embodiment;

[0051] Figure 31 for Figure 30 The schematic diagram of the structure of the circuit board with the first electrical connector is shown. DETAILED DESCRIPTION

[0052] The following detailed description refers to the drawings that form a part of this specification. The exemplary embodiments mentioned in the specification and drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. In light of this application, those skilled in the art will understand that many other embodiments can be adopted and various changes can be made to the described embodiments without departing from the subject matter and scope of protection of the utility model. It should be understood that the various aspects of the present application described and illustrated herein can be arranged, replaced, combined, separated and designed according to many different configurations, and these different configurations are all within the scope of protection of this application.

[0053] See also Figure 1 and Figure 2 The present invention provides an electronic device comprising an accessory 1 and a main unit 2. The main unit 2 may contain electrical components such as a control panel and a battery. The accessory 1 may be detachably mounted on the main unit 2. In a specific embodiment, the accessory 1 may be rotatably mounted on the main unit 2.

[0054] See also Figure 3 and Figure 4 The accessory 1 may have a first electrical connector 50, and the host 2 may have a second electrical connector 27. The accessory 1 includes a functional element. When the accessory 1 is mounted on the host 2, the first electrical connector 50 and the second electrical connector 27 are electrically connected, so that power and control signals can be transmitted to the accessory 1 through the host 2 to control the operation of the functional element.

[0055] In this embodiment, the electronic device is a handheld electronic device, and the host 2 may include a handle, so that a user can hold the host 2 to conveniently use the electronic device.

[0056] See also Figure 5 In one embodiment of the present invention, users can replace different accessories 1 according to their needs. Different accessories 1 can have functional elements with different parameters or functions. That is, one host 2 can match multiple accessories 1, thereby meeting the diverse needs of users.

[0057] The electronic device provided in any embodiment of the present application may be a therapeutic device, the accessory 1 may be a therapeutic head, and the functional element may be an element that generates a therapeutic function. In some specific embodiments provided by the present invention, the electronic device may be a beauty instrument, and the functional element may be a filter.

[0058] See also Figure 6 In the specific example provided by the present invention, the electronic device is an ultrasound device, the accessory 1 is an ultrasound head, and the functional element is a transducer 13, which is used to generate ultrasound waves. Users can use the ultrasound device to output ultrasound waves for skin care, pain treatment, etc.

[0059] See also Figures 1 to 6 In one embodiment of the present invention, the accessory 1 further includes a first connection portion 30. The host 2 includes a second connection portion 20. The accessory 1 has an initial assembly position and a target assembly position relative to the host 2. The accessory 1 is rotatable about a first axis X1 relative to the host 2 between the initial assembly position and the target assembly position.

[0060] In this embodiment, the accessory 1 may have a first axis X1, and the host 2 may have a second axis X2. When the accessory 1 is installed on the host 2, the first axis X1 and the second axis X2 may coincide with each other and both are the rotation axis X of the accessory 1.

[0061] When the accessory 1 is in the initial assembly position, the first connection portion 30 and the second connection portion 20 are disengaged, and the accessory 1 can be separated from the main unit 2. When the accessory 1 is in the target assembly position, the first connection portion 30 and the second connection portion 20 are engaged, thereby restricting the movement of the accessory 1 relative to the main unit 2, so that the accessory 1 can be assembled to the main unit 2.

[0062] In this embodiment, when the user installs the accessory 1, the user can first place the accessory 1 in the initial assembly position, and then rotate the accessory 1 along the first direction A so that the accessory 1 rotates to the target assembly position relative to the host 2 to complete the assembly of the accessory 1.

[0063] When the user wishes to remove the accessory 1, the user can rotate the accessory 1 in a second direction opposite to the first direction A, so that the accessory 1 moves from the target assembly position to the initial assembly position. When the accessory 1 is rotated relative to the main unit 2 to the initial assembly position, the first connection portion 30 and the second connection portion 20 are disengaged. The first connection portion 30 and the second connection portion 20 no longer restrict the movement of the accessory 1 relative to the main unit 2, and the user can directly detach the accessory 1 from the main unit 2.

[0064] The first connection portion 30 and the second connection portion 20 according to one embodiment of the present invention will be described in detail below.

[0065] See also Figure 3 and Figure 4 In one embodiment of the present invention, one of the first connecting portion 30 and the second connecting portion 20 includes an elastic member 21, and the other includes an abutting wall 31 and a positioning groove 32. The abutting wall 31 has an initial end corresponding to the position of the elastic member 21 in the initial assembly position and a distal end remote from the initial end. The distal end of the abutting wall 31 is connected to the positioning groove 32.

[0066] During the rotation of the accessory 1 relative to the main body 2 from the initial assembly position to the target assembly position, the elastic member 21 may, during at least a portion of the rotational process, continuously press against the abutment wall 31 to generate an elastic force F. When the elastic member 21 passes over the distal end and enters the positioning groove 32, the elastic force F of the elastic member 21 is at least partially released, generating a first click sound.

[0067] In this embodiment, the first connection portion 30 can be provided on the accessory 1, and the second connection portion 20 can be provided on the host 2. Of course, the second connection portion 20 can also be provided on the accessory 1, and the first connection portion 30 can be provided on the host 2.

[0068] See also Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the position of the accessory 1 relative to the host 2 when it is in the initial assembly position. Figure 10 Schematic diagram of the position of the accessory 1 relative to the host 2 when the accessory 1 is in the target assembly position.

[0069] See also Figure 9 When the accessory 1 is installed to the initial assembly position, the end of the elastic member 21 points to the abutment wall 31, and in the initial assembly position and / or during the rotation process, it abuts against the abutment wall 31 under force. During the force process, the elastic member 21 can undergo elastic deformation to generate an elastic force F.

[0070] It can be understood that in this embodiment, in the initial assembly position, the elastic member 21 may only correspond to the initial end position of the abutment wall 31. However, at this time, the elastic member 21 does not undergo elastic deformation. Only after the accessory 1 rotates a certain angle does the elastic member 21 begin to abut against the abutment wall 31 under force and continue to press against the abutment wall 31.

[0071] Of course, in other embodiments, the elastic member 21 may also be in force abutment with the initial end of the abutment wall 31 at the initial assembly position, that is, during the entire rotation process of the accessory 1, the elastic member 21 continuously presses against the abutment wall 31 to generate a continuous elastic force.

[0072] When the accessory 1 rotates relative to the main body 2 from the initial assembly position to the target assembly position, the elastic member 21 moves from the initial end to the distal end along the abutting wall 31 .

[0073] When the elastic member 21 passes over the end of the abutment wall 31 and enters the positioning groove 32, the accessory 1 rotates to the target assembly position relative to the main body 2. At this time, the elastic force F of the elastic member 21 is released, and the elastic member 21 collides with the groove wall 321 of the positioning groove 32 or the bottom of the positioning groove 32, thereby emitting a first click sound, thereby providing auditory feedback to the user. At the same time, the vibration caused by the collision also provides tactile feedback to the user, indicating that the accessory 1 has been rotated to the target assembly position.

[0074] Furthermore, when the elastic member 21 enters the positioning slot 32, the user must apply a certain amount of force to rotate the accessory 1 to overcome the elastic force F of the elastic member 21, so that the elastic member 21 can be released from the positioning slot 32. In other words, the cooperation between the elastic member 21 and the positioning slot 32 can also limit the rotation of the accessory 1 relative to the main unit 2.

[0075] Furthermore, in one embodiment of the present invention, when the elastic member 21 is pressed against the end of the abutting wall 31, the elastic force F of the elastic member 21 is greater than 50% of the maximum elastic force Fmax of the elastic member 21; when the elastic member 21 is placed in the positioning groove 32, the elastic force F of the elastic member 21 is less than 10% of the maximum elastic force Fmax.

[0076] In this embodiment, when the elastic member 21 presses against the end of the abutting wall 31, the elastic deformation of the elastic member 21 is large, and the elastic force F generated is also large. When the elastic member 21 is placed in the positioning groove 32, the elastic deformation of the elastic member 21 is small, and the elastic force F generated is also small.

[0077] Therefore, when the accessory 1 is rotated from the initial assembly position to the target assembly position, when the elastic member 21 passes over the end of the abutment wall 31, the elastic force F of the elastic member 21 is instantly released, causing the elastic member 21 to collide with the groove wall 321 of the positioning groove 32 or the bottom of the positioning groove 32, producing a first click. At the same time, the engagement of the elastic member 21 with the positioning groove 32 further restricts the rotation of the accessory 1, and the elastic member 21 will not easily disengage from the positioning groove 32. This ensures the stable engagement of the first connecting portion 30 and the second connecting portion 20 when the accessory 1 is in the target assembly position, thereby improving the stability of the assembly of the accessory 1 with the main unit 2.

[0078] Furthermore, in one embodiment of the present invention, the abutting wall 31 includes one or a combination of at least two of a horizontal surface, a wavy surface, and an inclined surface.

[0079] See also Figure 12 and Figure 13 In one embodiment, the abutting wall 31 may be a horizontal plane, which is a plane perpendicular to the first axis X1 or the second axis X2. Figure 12 is a schematic diagram of the elastic member 21 moving from the initial end to the end of the abutting wall 31 when the abutting wall 31 is a horizontal plane. Figure 13 is a schematic diagram showing the elastic force F of the corresponding elastic member 21 relative to the movement distance.

[0080] In this embodiment, as the accessory 1 rotates from the initial assembly position to the target assembly position relative to the main body 2, the elastic member 21 continuously presses against the abutment wall 31 from the initial assembly position, and the elastic force F of the elastic member 21 remains constant. Throughout the entire rotation process of the accessory 1, the user only experiences a tactile change in force and an audible click when the elastic member 21 passes over the distal end of the abutment wall 31 and enters the positioning groove 32.

[0081] The elastic force F of the elastic member 21 can always be greater than 50% of the maximum elastic force Fmax, thereby further ensuring that when the elastic member 21 passes over the end of the abutting wall 31 and enters the positioning groove 32, a clearer first click sound can be generated to provide auditory feedback to the user.

[0082] See also Figure 14 In another embodiment, the abutting wall 31 is a continuous inclined surface.

[0083] In this embodiment, as the accessory 1 rotates relative to the main unit 2 from the initial assembly position to the target assembly position, the elastic member 21 continuously presses against the abutment wall 31 from the initial assembly position. Throughout the entire process of the user rotating the accessory 1, the elastic force F of the elastic member 21 continuously increases as it reaches the end of the abutment wall 31, and is then released as it passes the end of the abutment wall 31 and enters the positioning groove 32. During this process, the user can tactilely feel a distinct change in force in two stages and hear an audible click, providing a different user experience from the previous embodiment.

[0084] In other embodiments provided by the present invention, the abutting wall 31 may also be a combination of a horizontal surface and an inclined surface, a combination of a horizontal surface and a wavy surface, or other combinations, as follows:

[0085] See also Figure 3 、 15 and Figure 16 In another embodiment, the abutting wall 31 includes a first abutting wall 311 and a second abutting wall 312. Specifically, the abutting wall 31 includes a first abutting wall 311 arranged horizontally and a second abutting wall 312 arranged obliquely. Figure 3 shows a schematic diagram of the three-dimensional structure of Annex 1, Figure 15 FIG. 2 shows a schematic diagram of the elastic member 21 moving from the initial end to the end end of the abutting wall 31. Figure 16 The elastic member 21 is shown based on Figure 15 Schematic diagram of the change of elastic force F with distance.

[0086] In this embodiment, as the accessory 1 rotates from its initial assembly position to its target assembly position relative to the main unit 2, the elastic member 21 generates a continuous and constant elastic force F1 at the horizontally arranged first abutment wall 311. After entering the inclined second abutment wall 312, it generates a continuously increasing elastic force F2. Finally, upon passing the end of the abutment wall 31 and entering the positioning slot 32, the elastic force F is released. During this process, the user can tactilely sense a three-stage change in force and hear an audible click, providing yet another embodiment with a different user experience.

[0087] See also Figure 17 In another embodiment, the abutment wall 31 may have multiple inclined surfaces, and when the accessory 1 is in the initial assembly position, the elastic member 21 does not generate force interaction with the abutment wall 31. In the initial assembly position, the end of the elastic member 21 does not contact the abutment wall 31 or the end of the elastic member 21 only contacts the abutment wall 31, and the elastic member 21 is not subjected to force.

[0088] During the rotation of the accessory 1 relative to the main unit 2 from the initial assembly position to the target assembly position, the elastic force F of the elastic member 21 can have four stages. The elastic member 21 has a first stage of zero elastic force. Then, the first inclined surface of the abutment wall 31 applies force to the elastic member 21, generating a first stage of progressively increasing elastic force F1. Then, the second inclined surface of the abutment wall 31 applies force to the elastic member 21, generating a second stage of progressively increasing elastic force F2. Finally, when the elastic member 21 passes over the distal end of the abutment wall 31 and enters the positioning slot 32, the elastic force F2 is released.

[0089] When the elastic member 21 presses against the end of the abutment wall 31, the elastic force F of the elastic member 21 can be greater than 50% of the maximum elastic force Fmax. During the installation of the accessory 1, the user can experience a four-stage tactile change in force and hear a clicking sound. The first stage is the absence of elastic force; the second stage provides tactile feedback of a small incremental force increase; the third stage provides tactile feedback of a large incremental force increase; and the fourth stage provides tactile feedback of an instantaneous force release accompanied by a clicking sound. In summary, this embodiment provides another different experience.

[0090] See also Figure 18 In another embodiment, the first abutment wall 311 can also be a wavy surface. When the accessory 1 is rotated from the initial assembly position to the target assembly position, the elastic member 21 moves along the first abutment wall 311, and the first elastic force F1 of the elastic member 21 can change periodically. That is, during the rotation process, the user can continuously experience regular tactile oscillations, such as a sense of jerkiness during rotation. When the elastic member 21 passes the end of the abutment wall 31 and enters the positioning groove 32, they feel the force release, accompanied by an audible click, providing another embodiment with a completely different user experience.

[0091] In addition, in the above-mentioned multiple embodiments, when the elastic member 21 presses against the abutment wall 31 and moves along the abutment wall 31, the instantaneous change amplitude of the elastic force F of the elastic member 21 is smaller than the instantaneous change amplitude when the elastic member 21 passes over the end of the abutment wall 31 and enters the positioning groove 32.

[0092] Specifically, when the elastic member 21 abuts against the end of the abutting wall 31, the elastic force F of the elastic member 21 can reach a maximum, and when the elastic member 21 enters the positioning groove 32, the elastic force F generated by the elastic member 21 can be a minimum elastic force F. In this way, more obvious auditory feedback and tactile feedback can be provided to the user.

[0093] Furthermore, in one embodiment of the present invention, a plurality of elastic members 21 are provided, and the plurality of elastic members 21 are evenly spaced about the first axis X1 or the second axis X2. In this embodiment, when the accessory 1 is assembled with the main unit 2, the first axis X1 of the accessory 1 coincides with the second axis X2 of the main unit 2, and both serve as the rotation axis X of the accessory 1.

[0094] In the specific embodiment provided by the present invention, the second connection portion 20 includes an elastic member 21, and the first connection portion 30 includes an abutting wall 31 and a positioning groove 32. The elastic members 21 can be evenly spaced around the second axis X2 of the main body 2.

[0095] The first connecting portion 30 may include a plurality of abutment walls 31 and positioning slots 32 corresponding one-to-one with the elastic members 21. The abutment walls 31 may be spaced apart around the first axis X1, ensuring that the elastic force F of each elastic member 21 is the same during rotation of the accessory 1. The positioning slots 32 may also be spaced evenly apart around the first axis X1. When the user rotates the accessory 1, each elastic member 21 presses against the corresponding abutment wall 31 and simultaneously passes over the distal end of the corresponding abutment wall 31 and enters the corresponding positioning slot 32.

[0096] This ensures that the elastic forces F of the elastic members 21 are uniform. When the user rotates the accessory 1, the forces exerted by the multiple elastic members 21 are balanced, resulting in a more uniform resistance and a better user experience. Furthermore, when the accessory 1 reaches the target assembly position, the elastic forces F of the multiple elastic members 21 are released simultaneously, producing a first click sound. This provides the user with more distinct auditory and tactile feedback.

[0097] Furthermore, in one embodiment of the present invention, the positioning groove 32 has an inclined groove wall 321 , and the slope of the groove wall 321 is 30°-60°.

[0098] In this embodiment, the slope of the groove wall 321 may be an acute angle between the groove wall 321 and a horizontal plane.

[0099] The slope of the groove wall 321 is 30°-60°. In this way, when the elastic member 21 passes over the end of the abutment wall 31 and enters the positioning groove 32, the movement time along the groove wall 321 of the positioning groove 32 is short, and the elastic force F of the elastic member 21 can be quickly released, so that the elastic member 21 can quickly collide with the bottom wall of the positioning groove 32, making a first click sound.

[0100] It's important to note that when the slope of the groove wall 321 is less than 30°, this means that after the elastic member 21 passes over the end of the abutment wall 31, it enters the groove wall 321 with less pronounced undulation relative to that end. This results in continuous contact between the elastic member 21 and the groove wall 321 after passing over the end of the abutment wall 31, rather than a sudden force release. In other words, the user only experiences a continuous force release and reduction, without the auditory feedback (the first click) caused by the sudden force release. In contrast, when the slope of the groove wall 321 is greater than 60°, this means that after the elastic member 21 passes over the end of the abutment wall 31, it enters the groove wall 321 with more pronounced undulation relative to that end. When the user attempts to unscrew the groove in the opposite direction, the steeper groove wall 321 creates poor unscrewing resistance, potentially preventing proper unscrewing. Therefore, the slope of the groove wall 321 needs to be carefully designed.

[0101] Furthermore, in one embodiment of the present invention, the slope of the second abutting wall 312 may be 30°-60°. Similar to the arrangement of the groove wall 321 , the slope of the second abutting wall 312 also needs to be designed.

[0102] In this embodiment, when the accessory 1 rotates from the target assembly position to the initial assembly position relative to the host 2, the elastic member 21 passes over the second abutting wall 312 and enters the first abutting wall 311, and the elastic force F of the elastic member 21 is at least partially released to generate a second click sound.

[0103] When the accessory 1 rotates from the target assembly position to the initial assembly position, the elastic member 21 first moves outward from the positioning slot 32 along the slot wall 321 of the positioning slot 32. The slot wall 321 of the positioning slot 32 applies pressure to the elastic member 21, causing the elastic member 21 to elastically deform and generate an elastic force F. Once the elastic member 21 enters the second abutting wall 312 from the positioning slot 32, the elastic force F of the elastic member 21 begins to be released. Because the slope of the second abutting wall 312 is 30°-60°, the elastic force F of the elastic member 21 can be quickly released. The elastic member 21 can then leap over the second abutting wall 312 and enter the first abutting wall 311, where it collides with the first abutting wall 311, producing a second click.

[0104] It should be pointed out that the second click and the first click can be understood as two independent auditory feedbacks, which depend on the slope of the groove wall 321, the depth of the groove wall 321, the slope of the second abutting wall 312 and the depth of the second abutting wall 312. In other words, when the depth between the top of the groove wall 321 and the bottom of the groove wall 321 is greater than the depth between the top of the second abutting wall 312 and the bottom of the second abutting wall 312, the force with which the elastic member 21 collides with the first abutting wall 311 is relatively small, which makes it possible for the first click to have more obvious auditory feedback than the second click, accompanied by more obvious tactile feedback.

[0105] In this way, when the user removes the accessory 1 from the host 2, the user is provided with another auditory feedback and a tactile feedback.

[0106] For further information, see Figures 3 to 11 In one embodiment of the present invention, one of the first connecting portion 30 and the second connecting portion 20 includes at least two connecting ribs 33 spaced apart, and the other includes at least two connecting grooves 22. The interval between any two adjacent connecting grooves 22 forms a spacing space 23. The spacing space 23 is used to accommodate the connecting ribs 33 in the initial assembly position, and the connecting grooves 22 are used to cooperate one-to-one with the connecting ribs 33 in the target assembly position to limit the movement of the accessory 1 relative to the host 2 along the first axis X1.

[0107] In the specific embodiment provided by the present invention, the connecting rib 33 is provided on the first connecting portion 30 , and the connecting groove 22 is provided on the second connecting portion 20 .

[0108] When the user installs accessory 1, they first align the connecting rib 33 of accessory 1 with the spacing space 23 and place the connecting rib 33 within the spacing space 23, placing accessory 1 in the initial assembly position. Accessory 1 is then rotated in the first direction A. When a first click is heard, accessory 1 reaches the target assembly position. At this point, the elastic member 21 enters the positioning groove 32, thereby limiting the rotation of accessory 1 relative to the main unit 2 about the first axis X1. Simultaneously, the connecting rib 33 mates with the connecting groove 22, and the connecting rib 33 is inserted into the connecting groove 22, limiting the movement of accessory 1 relative to the main unit 2 along the first axis X1. It can be understood that in the target assembly position, accessory 1 and main unit 2 are relatively fixed, the two are assembled, and the user can use the electronic device.

[0109] In this embodiment, multiple pairs of connecting ribs 33 and connecting grooves 22 are provided. The multiple connecting ribs 33 can be spaced apart around the first axis X1, and the multiple connecting grooves 22 can be spaced apart around the second axis X2. The number of connecting ribs 33 and connecting grooves 22 can be the same as the number of elastic members 21. Multiple pairs of connecting ribs 33 and connecting grooves 22 can ensure a more stable fit between the accessory 1 and the main unit 2.

[0110] Furthermore, in one embodiment of the present invention, the first connecting portion 30 has a first connecting cavity S1, the connecting rib 33 is disposed on the side wall 36 of the first connecting cavity S1, and the abutting wall 31 is disposed on the bottom wall of the first connecting cavity S1. The second connecting portion 20 has a second connecting cavity S2, the connecting groove 22 is disposed within the second connecting cavity S2, and the elastic member 21 at least partially protrudes from the surface wall of the second connecting cavity S2.

[0111] In this embodiment, the first connection portion 30 may be provided on the accessory 1 , and the second connection portion 20 may be provided on the host 2 . The first connection portion 30 may include a connection rib 33 and a positioning groove 32 , and the second connection portion 20 may include a connection groove 22 and an elastic member 21 .

[0112] The first connecting cavity S1 and the second connecting cavity S2 are both cylindrical cavities. The central axis of the first connecting cavity S1 forms a first axis X1, and the central axis of the second connecting cavity S2 forms a second axis X2. When the accessory 1 is assembled with the main unit 2, the first axis X1 and the second axis X2 coincide, forming the rotational axes X of the accessory 1 relative to the main unit 2.

[0113] See also Figure 4 、 7 , 8, and 9, the outer surface of the side wall 36 of the first connecting portion 30 and the inner wall 201 of the second connecting cavity S2 are circular with matching dimensions. The connecting rib 33 is provided on the inner side of the side wall 36 of the first connecting cavity S1. The connecting rib 33 extends in an arc shape centered on the first axis X1. This facilitates the rotational engagement of the first connecting portion 30 and the second connecting portion 20.

[0114] In a specific embodiment of the present application, the connecting rib 33 can be disposed on the inner side of the sidewall 36 of the first connecting cavity S1, near the opening 361. The connecting groove 22 is located within the second connecting cavity S2. When the first connecting portion 30 and the second connecting portion 20 are mated, the first connecting portion 30 can be inserted into the second connecting cavity S2 of the second connecting portion 20. A gap 26 is defined between the connecting groove 22 and the inner wall 201 of the second connecting cavity S2. The sidewall 36 of the first connecting cavity S1 can be inserted into this gap 26. The gap 26 has openings 261 at both ends, each of which is connected to the adjacent separation space 23. In this manner, rotating the accessory 1 can achieve engagement or disengagement between the connecting groove 22 and the connecting rib 33.

[0115] In this embodiment, at least a portion of the bottom wall of the first connection cavity S1 is formed by an abutment wall 31 and a positioning groove 32. When the accessory 1 is installed on the main unit 2, the first connection portion 30 is inserted into the second connection cavity S2, and the elastic member 21 directly presses against the abutment wall 31. At this point, the direction of the elastic force F of the elastic member 21 is parallel to the direction of the second axis X2. Thus, during the rotation of the accessory 1 from the initial assembly position to the target assembly position, the connection rib 33 and the connection groove 22, as well as the elastic member 21 and the positioning groove 32, are simultaneously engaged, thereby securing the accessory 1 relative to the main unit 2 in the target assembly position.

[0116] For further information, see Figure 7In one embodiment of the present invention, the second connecting portion 20 includes a protrusion 24 formed within the second connecting cavity S2. The protrusion 24 includes spaced-apart raised portions 25, and a connecting groove 22 is provided in the raised portion 25. Specifically, the connecting groove 22 is formed at the free end of the raised portion 25, near the bottom wall of the second connecting cavity S2, and has a continuous opening toward the inner wall 201 of the second connecting cavity S2. A gap 26 is formed between the circumferential surface 252 of the raised portion 25 and the inner wall 201 of the second connecting cavity S2 to accommodate the sidewall 36 of the first connecting cavity S1.

[0117] In this embodiment, the protrusion 24 and the second connecting cavity S2 can be integrally formed by an injection molding process, and the bottom wall of the second connecting cavity S2 extends to the surface wall of the protrusion 24 to form a continuous surface.

[0118] The gaps between the protrusions 25 form a space 23 that is connected to the gap 26. The circumferential surface 252 of the protrusion 24 may include multiple arc surfaces centered on the second axis X2. When the accessory 1 is in the initial assembly position, the connecting rib 33 is placed in the space 23, and the opening 361 of the side wall 36 of the first connecting cavity S1 abuts against the bottom wall of the second connecting cavity S2. Figure 9 In the embodiment, the accessory 1 is rotated in the first direction A, the end portion 331 of the connecting rib 33 can be guided into the connecting groove 22, and the side wall 36 of the first connecting cavity S1 enters the gap 26 of the second connecting cavity S2, thereby achieving matching.

[0119] See also Figure 19 In this embodiment, the elastic member 21 includes a spring 211 and a sleeve 212 sleeved on the spring 211, and the sleeve 212 has a spherical end.

[0120] Continue to see Figure 7 Each protrusion 25 may be provided with a through-hole 251 for the elastic member 21 to pass through. The axis of the through-hole 251 may be parallel to the first axis X1. The housing 212 of the elastic member 21 may at least partially extend from the through-hole 251 to abut against the abutment wall 31. One end of the spring 211 may be assembled in the assembly space within the protrusion 24, while the other end abuts against the inner wall of the housing 212. When subjected to force, the elastic member 21 may expand and contract along the axis of the through-hole 251.

[0121] The end of the sleeve 212 is spherical, and in its unstressed, natural state, its hemispherical portion is exposed outside the through-hole 251. During the rotation of the accessory 1, the spherical end can abut against the abutment wall 31 or the groove wall 321, providing a more optimal contact force direction, thereby allowing the sleeve 212 to expand and contract more smoothly in a direction parallel to the second axis X2, avoiding jamming, improving the user's tactile feel during rotation, and providing a better user experience.

[0122] See also Figure 20 In other embodiments provided by the present invention, the elastic member 21 may also be an elastic metal member, the end of which may be bent to form an arc-shaped end surface. When subjected to force, the arc-shaped end surface may abut against the abutment wall 31 or the groove wall 321 and slide along the rotation direction.

[0123] For further information, see Figure 3 In one embodiment of the present invention, the positioning groove 32 is V-shaped. When the accessory 1 rotates from the initial assembly position to the target assembly position along the first direction A relative to the host 2, the positioning groove 32 limits the accessory 1 from rotating along the first direction A.

[0124] In this embodiment, when the elastic member 21 enters the positioning groove 32, the V-shaped sidewalls of the positioning groove 32 restrict the movement of the elastic member 21. To further rotate the accessory 1, the user must apply a certain force to overcome the elastic force F of the elastic member 21, causing the elastic member 21 to elastically deform. In other words, the cooperation between the positioning groove 32 and the elastic member 21 can provide a certain limit to the rotation of the accessory 1 relative to the main body 2, preventing the user from rotating the accessory 1 to an unintended position.

[0125] For further information, see Figure 3 as well as Figure 9 、 Figure 10 In one embodiment of the present invention, a limit block 34 is provided at one end of the connecting rib 33. The limit block 34 is used to prevent the accessory 1 from rotating along the first direction A after the accessory 1 rotates relative to the host 2 from the initial assembly position to the target assembly position along the first direction A.

[0126] In this embodiment, in the first direction A, the connecting rib 33 may have an end portion 331 and an opposite end portion. When the accessory 1 is in the initial assembly position, the end portion 331 of the connecting rib 33 may be adjacent to the corresponding connecting groove 22. The stopper 34 is located at the end of the connecting rib 33. The stopper 34 may also be provided on the side wall 36 of the first connecting cavity S1, and the stopper 34 may protrude further toward the center of the first connecting cavity S1 than the connecting rib 33.

[0127] Figure 9 In FIG, when the accessory 1 is in the initial assembly position, the connecting rib 33 and the limiting block 34 are both located in the spacing space 23. Figure 10 When the accessory 1 is rotated from the initial assembly position to the target assembly position along the first direction A, the side wall of the limit block 34 abuts against the side wall of the protrusion 25. In this way, the accessory 1 can be restricted from further rotation along the first direction A relative to the host 2, thereby preventing the user from continuing to rotate the accessory 1 when installing it, thereby providing clear tactile feedback.

[0128] Furthermore, in one embodiment of the present invention, the accessory 1 may have a first electrical connector 50, and the main unit 2 may be provided with a second electrical connector 27. After the accessory 1 is rotatably connected to the main unit 2, the accessory 1 and the main unit 2 can be mated via the first electrical connector 50 and the second electrical connector 27. The first electrical connector 50 may be a first electrical contact, and the second electrical connector 27 may be a second electrical contact. Specifically, the first electrical contact 50 may be a metal solder joint on a pad on the circuit board 40, and the second electrical contact 27 may be a pin. When the accessory 1 is in the target assembly position, the first electrical contact 50 and the second electrical contact 27 are electrically connected, thereby enabling the transmission of power and / or data signals between the main unit 2 and the accessory 1.

[0129] The first electrical connector 50 and the second electrical connector 27 of the electronic device provided by the present invention are described in detail as follows:

[0130] In this embodiment, the accessory 1 includes at least two first electrical contacts 50. The host 2 includes at least two second electrical contacts 27 that are paired with the first electrical contacts 50. When the accessory 1 is in the target assembly position, each first electrical contact 50 contacts its paired second electrical contact 27, thereby enabling power and / or data signals to be transmitted between the host 2 and the accessory 1.

[0131] During the rotation of the accessory 1 from the initial assembly position to the target assembly position, the movement path of each first electrical contact 50 of the accessory 1 only passes through the second electrical contact 27 paired with it, and each second electrical contact 27 is located at the end point of the movement path of the first electrical contact 50 paired with it, so as to be electrically connected to the first electrical contact 50 at the target assembly position.

[0132] In which, when the accessory 1 rotates from the initial assembly position to the target assembly position, the movement path of each first electrical contact 50 can be an arc centered on the first axis X1, and the second electrical contact 27 paired with the first electrical contact 50 can be located at the end of the arc formed by its movement path. When the accessory 1 rotates to the target assembly position, the first electrical contact 50 moves to a position in contact with the second electrical contact 27, thereby achieving electrical connection with the second electrical contact 27.

[0133] Of course, in this embodiment, the movement path of one of the first electrical contacts 50 can also be a circle, that is, this first electrical contact 50 is located on the first axis X1, the starting point and end point of its movement path coincide, and the other second electrical contact 27 paired with it is always in contact with and electrically connected to the first electrical contact 50.

[0134] In this embodiment, during the assembly or disassembly of the accessory 1, the movement path of each first electrical contact 50 passes only through its paired second electrical contact 27, and does not pass through other second electrical contacts 27. In this way, during the assembly of the accessory 1, unintended connection between the first electrical contact 50 and the second electrical contact 27 can be avoided, thereby ensuring the correct transmission of power and / or data signals and avoiding possible signal errors, abnormal prompts, etc.

[0135] Furthermore, in this embodiment, at least two first electrical contacts 50 are connected to the second electrical contacts 27 one by one to transmit different signals.

[0136] The electronic device may include at least four pairs of first electrical contacts 50 and second electrical contacts 27, each pair of first electrical contacts 50 and second electrical contacts 27 being electrically connected for transmitting a signal, such as a power signal, a ground signal, a connection detection signal, a temperature detection signal, etc.

[0137] It will be appreciated that in this embodiment, the signals transmitted by the multiple pairs of first electrical contacts 50 and second electrical contacts 27 are different. During assembly and disassembly of the accessory 1, each first electrical contact 50 is connected only to its paired second electrical contact 27, and not to any other second electrical contacts 27. This ensures the correct transmission of power and / or data signals, thereby improving the stability of the electronic device and avoiding unexpected consequences due to incorrect connections.

[0138] In one embodiment of the present invention, a movement path formed by at least a portion of the first electrical contacts 50 when rotating from the initial assembly position to the target assembly position is an arc, and a central angle of the arc is less than 90°.

[0139] See also Figures 21 to 23 , which are schematic diagrams of the first electrical contact 50 and the second electrical contact 27 in three different embodiments provided by the present invention, wherein the solid line portion represents a schematic diagram of the position of the first electrical contact 50 when the accessory 1 is in the initial assembly position, and the dotted line portion represents a schematic diagram of the position of the first electrical contact 50 when the accessory 1 is in the target assembly position.

[0140] In one embodiment, the movement paths of at least some of the first electrical contacts 50 may lie on the same circle and do not intersect with each other. For example, if the accessory 1 has five first electrical contacts 50, the movement paths of two of the first electrical contacts 50 may be arcs centered on the first axis X1 and having the same radius, and their movement paths do not intersect with each other. In this way, the movement path of each first electrical contact 50 only passes through its paired second electrical contact 27 and does not pass through other second electrical contacts 27.

[0141] See also Figure 22In one embodiment of the present invention, the movement path of at least part of the first electrical contact 50 is on a circle with different radii.

[0142] In this embodiment, the motion paths of at least some of the first electrical contacts 50 are arcs centered on the first axis X1, but the arcs formed by the motion paths of some of the first electrical contacts 50 have different radii. Thus, the motion paths of at least some of the first electrical contacts 50 do not intersect with each other. Therefore, during movement of the accessory 1, the first electrical contact 50 only passes by its paired second electrical contact 27 and does not pass by other second electrical contacts 27.

[0143] See also Figure 23 In another embodiment of the present invention, one of the first electrical contacts 50 is located on the first axis X1, and the other first electrical contacts 50 are located on an arc centered on the first axis X1.

[0144] In this embodiment, the other first electrical contacts 50 can all be located on a circle centered on the first axis X1, or on multiple circles centered on the first axis X1 but with different radii, that is, the movement path of the other first electrical contacts 50 is an arc centered on the first axis X1.

[0145] Likewise, one of the second electrical contacts 27 is located on the second axis X2, and the other second electrical contacts 27 are all located on an arc centered on the second axis X2.

[0146] When accessory 1 is mounted on main unit 2, first axis X1 and second axis X2 coincide, forming the rotational axis X of accessory 1 relative to main unit 2. First electrical contacts 50 located on first axis X1 contact second electrical contacts 27 located on second axis X2, maintaining electrical contact throughout accessory 1's rotation. Once accessory 1 is rotated to its intended assembly position, the remaining first electrical contacts 50 mate with their corresponding second electrical contacts 27, establishing electrical contact.

[0147] Furthermore, in one embodiment of the present invention, the first connecting portion 30 and the second connecting portion 20 are also provided with a directional structure, which is used to limit the positional relationship of the accessory 1 relative to the host 2 during initial installation to ensure that the accessory 1 is mated with the host 2 at the correct initial assembly position.

[0148] See also Figure 8 and Figure 9 ,like Figure 8 As shown, the first connecting cavity S1 has a plurality of receiving portions 35 that are matched one-to-one with the protrusions 25 in the initial assembly position, one of the plurality of receiving portions 35 is a directional receiving portion, and the size and / or shape of the directional receiving portion is different from that of the other receiving portions, and the protrusion 25 includes a directional protrusion that can only be matched with the directional receiving portion.

[0149] exist Figure 8 In the embodiment, the first connecting cavity S1 of the accessory 1 is roughly adapted to the size of the area of ​​the protrusion 24 during the rotation process; and includes a receiving portion 35 that can be adapted to the end profile size of the protrusion 25 in the initial assembly position. When the accessory 1 is in the initial assembly position, the multiple protrusions 25 are placed one by one in the corresponding receiving portions 35. It should be emphasized that in this embodiment, the receiving portions 35 that are adapted to the end profile size of the multiple protrusions 25 are adapted one by one, and at least one receiving portion 35 has a size and / or shape different from the other receiving portions 35. Only when the directional protrusion is inserted into the corresponding directional receiving portion can the multiple protrusions 25 be inserted one by one into the corresponding receiving portions 35, thereby achieving a fool-proof directional effect.

[0150] Specifically, in Figure 8 In the figure, the first connecting cavity S1 has two accommodating portions 35 of different sizes, specifically including a first accommodating portion 351 and a second accommodating portion 352, wherein the opening contour of the first accommodating portion 351 is adapted to the end contour size of a protrusion 25, and has an arc-shaped opening size L1; correspondingly, the opening contour of the second accommodating portion 352 is adapted to the end contour size of another protrusion 25, and has an arc-shaped opening size L2, and L2≠L1.

[0151] Continue to see Figure 9 When the accessory 1 is docked with the main unit 2 in the correct initial assembly position, the raised portion 25 of the protrusion 24 can be respectively inserted into the first accommodating portion 351 and the second accommodating portion 352 of the first connecting cavity S1. If, in this state, the raised portion inserted into the first accommodating portion 351 is named the first raised portion, and the raised portion inserted into the second accommodating portion 352 is named the second raised portion, it can be understood that the size and shape of the first accommodating portion 351 are adapted to the first raised portion, and the size and shape of the second accommodating portion 352 are adapted to the second raised portion. In this embodiment, either the first accommodating portion 351 or the second accommodating portion 352 can be considered a directional accommodating portion, and the raised portion that matches it can be considered a directional raised portion.

[0152] For further comparison, see Figure 11 , Figure 11 The diagram shows an incorrect docking situation in which the accessory 1 is oriented 180° in the opposite direction relative to the main unit 2. Because the orientation is reversed and L2 ≠ L1, the second protrusion cannot be smoothly inserted into the first accommodating portion 351. In other words, the second protrusion 25 that mates with the second accommodating portion 352 will not be fully inserted into the first accommodating portion 351 due to its end profile being larger than the opening profile of the first accommodating portion 351.

[0153] Specifically, the second protrusion may include a protrusion 241. When the accessory 1 is incorrectly mated with the main unit 2, the protrusion 241 overlaps the outer wall of the stopper 34. Thus, by adapting the opening profile of the accommodating portion 35 in the first connection cavity S1 to the end profile of the protrusion 25, a foolproofing effect can be achieved, thereby ensuring that the accessory 1 is mated with the main unit 2 in the correct initial assembly position. Furthermore, this prevents power and / or data signal transmission failures caused by incorrect mating of the first electrical connector 50 and the second electrical connector 27.

[0154] An embodiment of the present invention further provides a method for connecting electrical contacts of an electronic device, the method comprising the following steps:

[0155] Place the accessory 1 in an initial assembly position where it can be detachably matched with the main unit 2;

[0156] The accessory 1 is rotated about the first axis X1 in the first direction A to a target assembly position, so that the first connection portion 30 mates with the second connection portion 20 , thereby assembling the accessory 1 to the host 2 and electrically connecting each first electrical contact 50 to its corresponding second electrical contact 27 ;

[0157] Each first electrical contact 50 forms a movement path. The movement path of each first electrical contact 50 only passes through the second electrical contact 27 paired with it. The second electrical contact 27 is located at the end of the movement path.

[0158] The electrical contact connection method of the electronic device of this embodiment can be used to connect the electronic device of any embodiment of the present application.

[0159] In this embodiment, when the accessory 1 is installed on the host 2, each first electrical contact 50 is electrically connected only to its paired second electrical contact 27, and not to other second electrical contacts 27. Therefore, it is possible to avoid contact between non-paired first electrical contacts 50 and second electrical contacts 27 during the installation of the accessory 1, thereby ensuring the proper transmission of power and / or data signals.

[0160] Hereinafter, the ultrasonic device provided in one embodiment of the present application will be described in detail.

[0161] As mentioned above, the ultrasound device includes a host 2 and an ultrasound head. Figure 24 In this embodiment, the ultrasonic head includes a housing 10, and the transducer 13 is installed in the housing 10. The housing 10 has a first connecting portion 30 and an active surface (ie, an outer wall 112) for transmitting ultrasonic waves to the external environment.

[0162] In this embodiment, the ultrasonic head further includes a circuit board 40, which is mounted within the housing 10. The circuit board 40 is electrically connected to the transducer 13. The circuit board 40 is also provided with a first electrical contact 50. The ultrasonic head can rotate about the first axis X1 between an initial assembly position and a target assembly position. In the initial assembly position, the first connecting portion 30 and the second connecting portion 20 are disengaged, allowing the ultrasonic head to be separated from the main unit 2. In the target assembly position, the first connecting portion 30 and the second connecting portion 20 engage and restrict rotation of the ultrasonic head relative to the main unit 2, thereby assembling the ultrasonic head to the main unit 2 and electrically connecting the first electrical contact 50 and the second electrical contact 27.

[0163] See also Figure 6 and Figure 24 In this embodiment, the ultrasound device is a handheld device. The main unit 2 has a handle. The angle between the handle's length and the active surface of the ultrasound head (i.e., the outer wall 112) is 10°-40°. This allows the active surface to more easily contact the user's skin during use, ensuring ultrasound waves are transmitted to the user's skin, providing a better grip and user experience.

[0164] See also Figure 5 In this embodiment, the ultrasonic device includes at least two different ultrasonic heads, each of which has a transducer 13 with a different resonant frequency. At least two different ultrasonic heads can be optionally assembled on the host 2 to generate and output ultrasonic waves of different frequencies.

[0165] In this way, one host 2 can be matched with different ultrasonic heads. Users can choose ultrasonic heads that can emit ultrasonic waves of different frequencies and install them on the host 2 according to their needs or treatment areas, etc., thereby meeting various usage requirements.

[0166] In one embodiment of the present invention, the ultrasonic head further includes a storage unit, in which configuration information of the accessory 1 is stored. The configuration information may include resonant frequency information of the transducer 13 .

[0167] The host 2 may further include an identification unit for obtaining the resonant frequency information stored in the storage unit. Specifically, the resonant frequency information stored in the storage unit may be transferred to the identification unit via the electrical connection between the first electrical contact 50 and the second electrical contact 27 .

[0168] The host 2 further includes a driving circuit, which is configured to output a driving signal matching the resonant frequency according to the resonant frequency information acquired by the identification unit.

[0169] Because different ultrasonic heads have different resonant frequencies, for example, if a user replaces an ultrasonic head with one with a different resonant frequency during use, or if the resonant frequency deviates from the predetermined frequency due to manufacturing errors during the ultrasonic head manufacturing process, if the host 2 continues to output the predetermined drive signal, the mismatch between the output drive signal and the resonant frequency of the ultrasonic head will result in low electroacoustic conversion efficiency and unstable output power of the ultrasonic head, which may cause the ultrasonic head to overheat and even cause burns to the user.

[0170] In this embodiment, a storage unit can be directly installed within the ultrasonic head. After the ultrasonic head is manufactured, the actual resonant frequency of the ultrasonic head is measured using testing equipment and stored in the storage unit. The electrical connection between the first electrical contact 50 and the second electrical contact 27 can also be used to transmit the configuration information in the storage unit. In this way, the host 2 can output a drive signal that matches the resonant frequency of the ultrasonic head, allowing the ultrasonic head to output ultrasonic waves at the optimal drive frequency, thereby preventing overheating of the device.

[0171] Furthermore, in one embodiment of the present invention, the configuration information also includes the serial number information of Appendix 1. In this embodiment, the serial number can be used for type identification. Ultrasonic heads can be of different types, such as a 1MHz circular ultrasonic treatment head and a 1.7MHz square treatment head. Different types of treatment heads are suitable for different treatment plans, treatment areas, and treatment symptoms. Using the serial number in the storage unit, the host 2 can obtain the type of ultrasonic head, thereby more accurately matching the drive signal.

[0172] The following is a detailed description of the ultrasonic head provided by the first embodiment of the present invention.

[0173] See also Figure 24 and Figure 25 In this embodiment, the housing 10 has at least one opening 14, and an accommodation space S3 is formed therein. A transducer 13 is mounted within the accommodation space S3 and is configured to generate ultrasonic waves. A circuit board 40 is at least partially located within the accommodation space S3 and is electrically connected to the transducer 13.

[0174] In this embodiment, the circuit board 40 includes a first surface 41 and a second surface 42 that are opposed to each other. The first surface 41 includes an exposed portion exposed to the external environment through the opening 14. The ultrasonic head includes a plurality of first electrical connectors 50, each of which has an electrical contact surface 51. The plurality of first electrical connectors 50 are disposed on the exposed portion. The electrical contact surface 51 of each of the plurality of first electrical connectors 50 is coplanar with the exposed portion of the first surface 41. This allows the electrical contact surface 51 to form a more uniform and flat structure relative to the first surface 41, optimizing the spatial layout and providing more friendly cleaning and maintenance conditions.

[0175] In the specific embodiment provided by the present invention, the housing 10 has an opening 14. The first surface 41 of the circuit board 40 is partially or entirely positioned within the opening 14 and exposed to the external environment through the opening 14. Furthermore, a plurality of first electrical connectors 50 disposed on the first surface 41 of the circuit board 40 are exposed to the external environment through the opening 14, and the electrical contact surfaces 51 are coplanar with the first surface 41. When the ultrasound head is assembled with the main unit 2, the first electrical connectors 50 mate with the second electrical connectors 27 of the main unit 2.

[0176] In a specific embodiment, the first electrical connector 50 is a metal solder joint on a circuit board, the second electrical connector 27 is a pin, and the electrical contact surface 51 of the first electrical connector 50 contacts the pin end of the second electrical connector 27, thereby electrically connecting the first electrical connector 50 to the second electrical connector 27. The electrical contact surfaces 51 of the multiple first electrical connectors 50 are located in the same plane, which facilitates the electrical connection between the first electrical connector 50 and the second electrical connector 27.

[0177] Furthermore, in this embodiment, the housing 10 includes a metal shell 11 and an encapsulating shell 12. The metal shell 11 has an inner wall 111 and an outer wall 112 opposite the inner wall 111. The encapsulating shell 12 encloses the metal shell 11 and forms an accommodating space S3. An opening 14 is provided in the encapsulating shell 12. The inner wall 111 of the metal shell 11 is fixedly connected to the transducer 13. The ultrasonic waves generated by the transducer 13 are transmitted through the inner wall 111 to the outer wall 112. The outer wall 112 serves as the active surface for contact with human skin.

[0178] In this embodiment, the transducer 13 can be attached to the inner wall 111 of the metal shell 11. The transducer 13 is in direct contact with the inner wall 111 of the metal shell 11, and the outer wall 112 of the metal shell 11 can directly form the active surface. That is, when in use, the user can place the outer wall 112 of the metal shell 11 against the skin surface. Therefore, the ultrasonic waves generated by the transducer 13 can be directly transmitted from the inner wall 111 of the metal shell 11 to the outer wall 112, and the ultrasonic waves can be output via the shortest path to reduce energy loss.

[0179] The space formed between the metal shell 11 and the packaging shell 12 is the accommodation space S3. Specifically, the accommodation space S3 can be formed within the metal shell 11. The metal shell 11 has an open end opposite the transducer 13, and the packaging shell 12 partially covers the open end of the metal shell 11. The circuit board 40 can be sandwiched between the metal shell 11 and the packaging shell 12 to ensure the stability of the installation of the circuit board 40. A sealing ring can be provided between the packaging shell 12 and the metal shell 11 to seal the gap between them, thereby ensuring the waterproof performance of the ultrasonic head.

[0180] In this embodiment, the housing 10 of the ultrasound head further includes a first connection portion 30, and the main unit 2 includes a second connection portion 20. The first connection portion 30 and the second connection portion 20 cooperate to mount the ultrasound head on the main unit 2 and electrically connect the first electrical connector 50 to the second electrical connector 27. The first connection portion 30 may be provided on the packaging shell 12.

[0181] Of course, see Figure 26 In other embodiments of the present invention, the first connecting portion 30 may not be directly disposed on the packaging shell 12, but may be provided additionally and connected to the shell formed by the metal shell 11 and the packaging shell 12. The specific structure of the first connecting portion 30 and the second connecting portion 20 can be found in any of the above embodiments and will not be repeated here.

[0182] Furthermore, in this embodiment, the ultrasonic head further includes an elastic conductive member 43 electrically connected to the circuit board 40 . The free end of the elastic conductive member 43 abuts against the transducer 13 and undergoes elastic deformation to electrically connect the circuit board 40 and the transducer 13 .

[0183] The elastic conductive member 43 can be fixedly mounted on the circuit board 40. During installation, the transducer 13 can be first mounted on the inner sidewall 111 of the metal shell 11, and then the circuit board 40 can be installed. When the circuit board 40 is mounted on the housing 10, the free end of the elastic member 21 abuts against the transducer 13 and undergoes elastic deformation, thereby quickly and stably electrically connecting the transducer 13 and the circuit board 40.

[0184] Furthermore, in this embodiment, the transducer 13 is a piezoelectric ceramic sheet, which is configured in a sheet shape. Specifically, the shape of the piezoelectric ceramic sheet can be adapted to the shape of the inner wall 111 of the metal shell 11. Generally speaking, when the inner wall 111 can be configured as a circular sheet, the corresponding piezoelectric ceramic sheet can be configured as a circular sheet with a certain thickness and a diameter slightly smaller than the inner wall 111.

[0185] Furthermore, in this embodiment, the transducer 13 and the circuit board 40 are arranged relatively parallel, and one end of the elastic conductive member 43 is fixed to the second surface 42 of the circuit board 40. The elastic conductive member 43 is perpendicular to the second surface 42 of the circuit board 40 and the transducer 13.

[0186] The elastic conductive member 43 has a columnar structure and is perpendicular to both the second surface 42 of the circuit board 40 and the transducer 13. That is, the elastic force F of the elastic conductive member 43 is perpendicular to the second surface 42 and the transducer 13. Thus, the transducer 13 and the circuit board 40 can be quickly and stably electrically connected via the elastic conductive member 43.

[0187] Furthermore, in this embodiment, the housing 10 has a horizontal outer wall 121 extending outwardly from the wall 141 of the opening 14. Each electrical contact surface 51 is flush with the first surface 41. Flush here can be understood as substantially flush with a reasonable tolerance, that is, the height difference between each electrical contact surface 51 and the first surface 41 can have a reasonable assembly tolerance, for example, within 1 mm is an acceptable reasonable assembly tolerance. The exposed portion of the first surface 41 of the circuit board 40 is flush with or lower than the outer wall 121. Substantially flush here can be understood as having a range of values ​​with a preset height difference. With the horizontal plane of the first surface 41 as the reference plane, the electrical contact surface 51 can have a height fluctuation difference of ±1 mm relative to the horizontal plane of the first surface 41. At the same time, when the electrical contact surface 51 is arranged higher than the first surface 41, the outer edge contour of the electrical contact surface 51 can be chamfered. Based on the above, it can be ensured that the first electrical connector 50 and the second electrical connector 27 have a smooth electrical contact transition when they are rotated and connected. At the same time, the substantially flush setting of the electrical contact surface 51 and the first surface 41 can further improve the convenience of cleaning the accessory 1.

[0188] See also Figure 24 and Figure 26 In the illustrated embodiment, the first surface 41 of the circuit board 40 is lower than the outer wall 121 .

[0189] See also Figure 27 In the embodiment shown, the first surface 41 of the circuit board 40 is flush with the outer wall 121. Figure 24 and Figure 26 Compared to the embodiment in FIG. 1 , this embodiment provides a flat surface that is easier to clean.

[0190] Specifically, the opening 14 is provided in the packaging shell 12 , and thus the packaging shell 12 has a horizontal outer wall 121 extending outward along a wall 141 of the opening 14 .

[0191] In this embodiment, the outer wall 121 is perpendicular to the first axis X1 of the ultrasonic head and extends away from the opening 14. Each electrical contact surface 51 is substantially flush with the first surface 41 of the circuit board 40. That is, the electrical contact surface 51 can be completely flush with the first surface 41 of the circuit board 40, or it can have a small height difference compared to the first surface 41 of the circuit board 40.

[0192] When the user uses the ultrasonic device, it is necessary to apply a coupling agent to the ultrasonic head and set the electrical contact surface 51 to be flush with the first surface 41 of the circuit board 40 in the same plane. This makes it easier for the user to clean the ultrasonic head when replacing the ultrasonic head without affecting the electrical connection effect between the first electrical connector 50 and the second electrical connector 27, and optimizes the spatial layout of the device.

[0193] Furthermore, in this embodiment, the plurality of electrical contact surfaces 51 located on the same plane are arranged in an array, and the array arrangement includes one or any combination of a rectangular array, a ring array, and a path array.

[0194] It can be understood that in this embodiment, the multiple electrical contact surfaces 51 located on the same plane can be arranged in a rectangular array, a circular array or a path array, or partially in a rectangular array and partially in a circular array, or in other array arrangements.

[0195] like Figure 28 FIG. 1 is a schematic diagram showing a plurality of electrical contact surfaces 51 arranged in a path array. Figure 29 , which is a schematic diagram showing a plurality of electrical contact surfaces 51 arranged in a rectangular array.

[0196] In this embodiment, the arrangement of multiple electrical contact surfaces 51 located on the same plane can be the same as the aforementioned embodiment, so that during the installation of the ultrasonic head, the movement path of each electrical contact surface 51 only passes through the corresponding second electrical connector 27 on the host 2 that is paired with it.

[0197] For further information, see Figure 24 and Figure 25 In this embodiment, the ultrasonic head further includes a sealing ring 15 surrounding the opening 14. The sealing ring 15 is placed between the wall of the housing 10 and the circuit board 40 to seal the gap between the housing 10 and the circuit board 40. At the same time, the through hole of the sealing ring 15 also exposes the first electrical connector 50 and the exposed portion of the first surface 41 to the external environment.

[0198] In the embodiment of the present invention, the housing 10 is provided with a groove around the opening 14 for accommodating a sealing ring 15. The sealing ring 15 can prevent external water from entering the housing 10 through the opening 14 of the housing 10, thereby improving the waterproof performance of the ultrasonic head.

[0199] Furthermore, in this embodiment, the ultrasonic head also includes a temperature sensor 44. The temperature sensor 44 is disposed within the accommodation space S3 and is used to detect the temperature of the transducer 13. A controller may be provided within the host 2. The temperature detected by the temperature sensor 44 can be transmitted to the controller of the host 2 via the first electrical connector 50 and the second electrical connector 27. The controller can adjust the drive output based on the temperature detected by the temperature sensor 44. For example, if the temperature sensor 44 detects that the temperature of the transducer 13 is higher than a preset temperature, the controller can control the transducer 13 to stop operating, thereby preventing the ultrasonic head from overheating and potentially burning the user.

[0200] See also Figure 30 , which is the ultrasonic head of the second embodiment of the present utility model.

[0201] The ultrasonic head of this embodiment differs primarily from the ultrasonic head of the first embodiment in that, in this embodiment, the housing 10 has multiple openings 14 and a horizontal outer wall 121 extending outwardly along the walls of the openings 14. The ultrasonic head also has multiple first electrical connectors 50, each of which is located in one of the openings 14 of the housing 10. Each first electrical connector 50 has an electrical contact surface 51, which is used to electrically connect to a corresponding second electrical connector 27 of the main body 2 when the ultrasonic head is mated with the main body 2. The electrical contact surface 51 of each of the multiple first electrical connectors 50 is flush with the outer wall 121, resulting in a more uniform and flat structure relative to the outer wall 121, optimizing the spatial layout and providing more user-friendly cleaning and maintenance conditions.

[0202] In this embodiment, the bottoms of the plurality of first electrical connectors 50 are all fixedly connected to the circuit board 40. When the circuit board 40 is installed in the housing 10, the plurality of first electrical connectors 50 are arranged in a one-to-one correspondence with the plurality of openings 14, with each first electrical connector 50 located at one opening 14. The electrical contact surface 51 of each first electrical connector 50 is exposed to the external environment through the opening 14, so as to contact and achieve electrical connection with the corresponding second electrical connector 27 of the host 2.

[0203] In this embodiment, multiple first electrical connectors 50 are arranged in a one-to-one correspondence with multiple openings 14. The surface of the circuit board 40 will not be exposed to the external environment through the openings 14, and only the multiple first electrical connectors 50 are exposed to the external environment through the openings 14, thereby ensuring that the ultrasonic head has good waterproof performance.

[0204] Furthermore, in this embodiment, the ultrasonic head also includes multiple sealing rings 15, and multiple first electrical connectors 50 are arranged in a one-to-one correspondence with multiple openings 14, and each sealing ring 15 fills the gap between the circumferential side surface of each first electrical connector 50 and the wall 141 of the corresponding opening 14.

[0205] In this embodiment, the first electrical connector 50 may be a conductive columnar structure. Each first electrical connector 50 may be embedded in an opening 14 of the housing 10 and include an electrical contact surface 51 and a peripheral side surface opposing the wall of the opening 14. A sealing ring 15 is disposed between the peripheral side surface of each first electrical connector 50 and the wall of the opening 14 to seal the gap between the first electrical connector 50 and the wall of the opening 14, preventing external contaminants from entering the accommodation space S3 of the housing 10 through the gap between the first electrical connector 50 and the wall of the opening 14, thereby ensuring a high waterproof rating for the ultrasonic head.

[0206] Furthermore, in this embodiment, the sealing ring 15 is made of an insulating material formed of plastic, thereby ensuring the sealing performance while improving the safety performance of the ultrasonic head.

[0207] The plurality of first electrical connectors 50 may be arranged in an array. The specific arrangement of the plurality of first electrical connectors 50 may be the arrangement of the electrical contacts in any of the above embodiments, which will not be described in detail here.

[0208] In summary, the electronic device provided by the present invention features an accessory 1 detachably connected to a main unit 2. Furthermore, by providing an elastic member 21 and a positioning slot 32, a click sound is emitted when the accessory 1 is rotated from an initial assembly position to a target assembly position, providing auditory feedback to the user and preventing the user from over-rotating the accessory 1. As the user uses the electronic device, different accessories 1 can be replaced, thereby meeting the user's diverse needs.

[0209] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0210] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic device, characterized in that include: Ultrasound head, including: a transducer for generating ultrasonic waves; a housing, wherein the transducer is mounted in the housing, and wherein the housing has a first connecting portion and an active surface for transmitting the ultrasonic wave to the external environment; a circuit board mounted in the housing and electrically connected to the transducer, the circuit board having a first electrical contact; and Host, including: a second electrical contact and a second connecting portion; The ultrasonic head has an initial assembly position and a target assembly position relative to the host, and the ultrasonic head can rotate around a first axis between the initial assembly position and the target assembly position; when the ultrasonic head is in the initial assembly position, the first connecting portion and the second connecting portion are disengaged, and the ultrasonic head can be separated from the host; when the ultrasonic head is in the target assembly position, the first connecting portion and the second connecting portion cooperate and limit the movement of the ultrasonic head relative to the host, and electrically connect the first electrical contact and the second electrical contact.

2. The ultrasonic device according to claim 1, wherein The ultrasonic device includes at least two different ultrasonic heads, each of which has a transducer with a different resonant frequency. One of the at least two different ultrasonic heads can be selectively assembled on the host to generate ultrasonic waves of different frequencies.

3. The ultrasonic device according to claim 1, wherein One of the first connecting portion and the second connecting portion includes at least two connecting ribs arranged at intervals, and the other of the first connecting portion and the second connecting portion includes at least two connecting grooves, and the interval between any two adjacent connecting grooves forms a spacing area, the spacing area is used to accommodate the connecting ribs in the initial assembly position, and the connecting groove is used to cooperate with the connecting ribs in the target assembly position to limit the axial movement of the ultrasonic head relative to the main unit along the first axis.

4. The ultrasonic device according to claim 3, wherein A limit block is provided at one end of the connecting rib, and the limit block is used to prevent the ultrasonic head from rotating along the first direction after the ultrasonic head rotates from the initial assembly position to the target assembly position relative to the host along the first direction.

5. The ultrasonic device according to claim 3, wherein The first connecting portion has a first connecting cavity, and the connecting rib is arranged on the side wall of the first connecting cavity; the second connecting portion has a second connecting cavity, and the connecting groove is arranged in the second connecting cavity.

6. The ultrasonic device according to claim 5, wherein The second connecting portion includes a protrusion formed in the second connecting cavity, the protrusion includes spaced apart protrusions, and the connecting groove is arranged on the protrusions; a gap is left between the circumferential surface of the protrusion and the inner wall of the second connecting cavity for accommodating the side wall of the first connecting cavity.

7. The ultrasonic device according to claim 6, wherein The first connecting cavity has a plurality of receiving portions that are matched one-to-one with the protrusions in the initial assembly position, one of the plurality of receiving portions is a directional receiving portion, the size and / or shape of the directional receiving portion is different from that of the other receiving portions, and the protrusion includes a directional protrusion that can only be matched with the directional receiving portion.

8. The ultrasonic device according to claim 5, wherein One of the first connecting portion and the second connecting portion includes an elastic member, and the other includes an abutting portion, the abutting portion includes a positioning groove, and when the ultrasonic head is located at the target assembly position, the elastic member is placed in the positioning groove to limit the rotation of the ultrasonic head relative to the host.

9. The ultrasonic device according to claim 8, wherein The abutting portion is arranged on the bottom wall of the first connecting cavity, and the elastic member is arranged to at least partially protrude from the bottom wall of the second connecting cavity.

10. The ultrasonic device according to claim 1, wherein The ultrasonic device is a handheld device, and the main unit has a handle portion. The angle between the length direction of the handle portion and the active surface is 10°-40°.

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