TW202339516A - A vibration transmitting plate and a bone conduction earphone - Google Patents
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Abstract
Description
本申請案涉及骨傳導裝置領域，特別涉及一種傳振片及骨傳導耳機。This application relates to the field of bone conduction devices, and in particular to a vibration transmission piece and bone conduction earphones.
本申請案主張於2022年03月21日提交之申請號為202220621093.X的中國專利申請案的優先權，其全部內容通過引用的方式併入本文。This application claims priority over the Chinese patent application with application number 202220621093.X submitted on March 21, 2022, the entire content of which is incorporated herein by reference.
傳振片作為骨傳導耳機中的重要部件，能夠將骨傳導耳機中的振動部件產生的振動傳遞給殼體，然後通過人的皮膚、皮下組織及骨骼傳遞到人的聽覺神經，使人聽到聲音。由於傳振片與骨傳導耳機的磁路系統連接，當骨傳導耳機處於工作狀態時，傳振片在磁路系統的作用下一直處於振動狀態，導致傳振片經常會有斷裂的情況發生，這會直接影響骨傳導耳機的品質，甚至會導致骨傳導耳機無法正常使用的情況。As an important component in bone conduction headphones, the vibration transmission piece can transmit the vibration generated by the vibrating components in the bone conduction headphones to the shell, and then transmit it to the human auditory nerve through human skin, subcutaneous tissue and bones, allowing people to hear sounds. . Since the vibration-transmitting piece is connected to the magnetic circuit system of the bone conduction earphones, when the bone conduction earphones are in working condition, the vibration-transmitting piece is always vibrating under the action of the magnetic circuit system, causing the vibration-transmitting piece to often break. This will directly affect the quality of the bone conduction headphones, and may even cause the bone conduction headphones to fail to function properly.
因此，希望提供一種結構可靠性較高的傳振片，以此來提高傳振片的使用壽命。Therefore, it is desired to provide a vibration-transmitting piece with higher structural reliability so as to increase the service life of the vibration-transmitting piece.
本說明書一方面提供一種傳振片，包括：環狀結構，該環狀結構的中部區域為鏤空區域；振動件，被配置為與磁路系統連接，該振動件位於該環狀結構的鏤空區域；以及多個桿件，被配置為連接該環狀結構與該振動件，該等多個桿件沿該振動件的周向間隔分佈；其中，該多個桿件中的至少一個桿件包括至少兩個彎曲部，該至少兩個彎曲部的曲率中心位於該至少一個桿件的兩側。On the one hand, this specification provides a vibration transmitting piece, including: a ring structure, the middle area of the ring structure is a hollow area; a vibrating member configured to be connected to the magnetic circuit system, the vibration member is located in the hollow area of the ring structure ; and a plurality of rods configured to connect the annular structure and the vibrating member, the plurality of rods being spaced apart along the circumference of the vibrating member; wherein at least one of the plurality of rods includes There are at least two bending parts, and the centers of curvature of the at least two bending parts are located on both sides of the at least one rod.
本說明書另一方面提供骨傳導耳機，包括：殼體結構、磁路結構以及上述任一實施例中的傳振片；該殼體結構具有容置空間，該磁路結構以及該傳振片位於該容置空間內；該傳振片的環狀結構與該殼體結構的內壁周向連接，該磁路結構與該傳振片的振動件連接。On the other hand, this specification provides bone conduction earphones, including: a shell structure, a magnetic circuit structure, and the vibration-transmitting piece in any of the above embodiments; the shell structure has an accommodation space, and the magnetic circuit structure and the vibration-transmitting piece are located in In the accommodation space, the annular structure of the vibration-transmitting piece is circumferentially connected to the inner wall of the housing structure, and the magnetic circuit structure is connected to the vibrating member of the vibration-transmitting piece.
相對於現有技術，本說明書提供的傳振片具有如下有益效果：通過多個桿件連接環狀結構及振動件，多個桿件中的一個桿件包括至少兩個彎曲部，此至少兩個彎曲部的曲率中心分別位於桿件的兩側的設置，可以在空間有限的情況下增加桿件彎曲部的數量，進而增大桿件的長度，從而能夠更好地減小桿件在鏤空區域的長度方向上的彈性係數，減小傳振片在引起其失效（塑性變形或斷裂）的載荷的方向上的彈性係數，提高傳振片的抗疲勞性能，降低傳振片發生失效的風險Compared with the prior art, the vibration transmitting plate provided in this specification has the following beneficial effects: the annular structure and the vibrating member are connected through a plurality of rods, one of the plurality of rods includes at least two bending parts, and the at least two The center of curvature of the bending part is located on both sides of the rod, which can increase the number of bending parts of the rod when space is limited, thereby increasing the length of the rod, thereby better reducing the length of the rod in the hollow area The elastic coefficient in the length direction reduces the elastic coefficient of the vibration-transmitting piece in the direction of the load that causes its failure (plastic deformation or fracture), improves the fatigue resistance of the vibration-transmitting piece, and reduces the risk of failure of the vibration-transmitting piece.
為了更清楚地說明本說明書實施例的技術方案，下面將對實施例描述中所需要使用的附圖作簡單的介紹。顯而易見地，下面描述中的附圖僅僅是本說明書的一些示例或實施例，對於所屬技術領域中具有通常知識者來講，在不付出進步性努力的前提下，還可以根據這些附圖將本說明書應用於其它類似情景。除非從語言環境中顯而易見或另做說明，圖式中相同的元件符號代表相同結構或操作。In order to explain the technical solutions of the embodiments of this specification more clearly, the accompanying drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some examples or embodiments of this specification. For those with ordinary knowledge in the technical field, the present invention can also be modified based on these drawings without making any progressive efforts. The instructions should be used in other similar situations. Unless obvious from the locale or otherwise stated, the same element symbols in the drawings represent the same structure or operation.
本說明書實施例提供一種傳振片，該傳振片可以包括環狀結構、與磁路系統連接的振動件以及用於連接環狀結構與振動件的多個桿件，其中，環狀結構的中部區域為鏤空區域，振動件位於環狀結構的鏤空區域，多個桿件沿振動件的周向間隔分佈。在一些實施例中，多個桿件中的一個桿件包括至少兩個彎曲部，此至少兩個彎曲部的曲率中心分別位於桿件的兩側的設置，這種方式可以減小傳振片在引起其失效（塑性變形或斷裂）的載荷的方向上的彈性係數，提高傳振片的抗疲勞性能，降低傳振片發生失效的風險。Embodiments of this specification provide a vibration-transmitting piece. The vibration-transmitting piece may include an annular structure, a vibrating member connected to a magnetic circuit system, and a plurality of rods used to connect the annular structure and the vibrating member, wherein the annular structure The middle area is a hollow area, the vibrating member is located in the hollow area of the annular structure, and multiple rods are distributed at intervals along the circumferential direction of the vibrating member. In some embodiments, one of the plurality of rods includes at least two bending portions, and the centers of curvature of the at least two bending portions are respectively located on both sides of the rod. This approach can reduce the vibration of the vibration-transmitting piece. The elastic coefficient in the direction of the load that causes its failure (plastic deformation or fracture) improves the fatigue resistance of the vibration transmission piece and reduces the risk of failure of the vibration transmission piece.
圖1是根據本說明書一些實施例所示的傳振片的結構示意圖。如圖1所示，在一些實施例中，傳振片100可以包括環狀結構110、振動件120及用於連接環狀結構110與振動件120的多個桿件。在一些實施例中，環狀結構110的形狀（外輪廓形狀）可以為如圖1所示的跑道形，也可以為具有諸如圓形、橢圓形、三角形、四邊形、五邊形、六邊形等規則形狀或不規則形狀。在一些實施例中，環狀結構110的中部區域為鏤空區域140。鏤空區域140的形狀可以視為環狀結構110的內輪廓形狀。在一些實施例中，環狀結構110的內輪廓形狀及外輪廓形狀可以為相同的形狀。例如，如圖1所示，環狀結構110的外輪廓形狀為跑道形，鏤空區域140（環狀結構的內輪廓）的形狀也為跑道形。進一步地，鏤空區域具有長度方向（即圖1所示的X方向）及寬度方向（即圖1所示的Y方向）。在一些實施例中，鏤空區域140的形狀可以與環狀結構110的外輪廓形狀不同。例如，環狀結構110的外輪廓形狀可以為跑道形，而鏤空區域140的形狀可以為圓形、矩形等其他形狀。Figure 1 is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification. As shown in FIG. 1 , in some embodiments, the vibration transmitting plate 100 may include an annular structure 110 , a vibrating member 120 , and a plurality of rods for connecting the annular structure 110 and the vibrating member 120 . In some embodiments, the shape (outer contour shape) of the annular structure 110 may be a racetrack shape as shown in FIG. 1 , or may be a shape such as a circle, an ellipse, a triangle, a quadrilateral, a pentagon, or a hexagon. Regular or irregular shapes. In some embodiments, the middle region of the annular structure 110 is a hollow region 140 . The shape of the hollow area 140 can be regarded as the inner contour shape of the annular structure 110 . In some embodiments, the inner contour shape and the outer contour shape of the annular structure 110 may be the same shape. For example, as shown in FIG. 1 , the outer contour shape of the annular structure 110 is a racetrack shape, and the shape of the hollow area 140 (the inner contour of the annular structure) is also a racetrack shape. Further, the hollow area has a length direction (ie, the X direction shown in Figure 1) and a width direction (ie, the Y direction shown in Figure 1). In some embodiments, the shape of the hollow region 140 may be different from the outer contour shape of the annular structure 110 . For example, the outer contour shape of the annular structure 110 can be a racetrack shape, and the shape of the hollow area 140 can be a circle, a rectangle, or other shapes.
在一些實施例中，傳振片100可以由金屬材料製作，金屬材料可以包括但不限於鋼材（例如，不銹鋼、碳素鋼等）、輕質合金（例如，鋁合金、鈹銅、鎂合金、鈦合金等）。在一些實施例中，傳振片100也可以由能達到同樣性能的其他單一或複合材料製作。例如，複合材料可以包括但不限於玻璃纖維、碳纖維、硼纖維、石墨纖維、碳化矽纖維或芳綸纖維等增強材料。In some embodiments, the vibration transmitting plate 100 can be made of metal materials, which can include but are not limited to steel (for example, stainless steel, carbon steel, etc.), lightweight alloys (for example, aluminum alloy, beryllium copper, magnesium alloy, Titanium alloy, etc.). In some embodiments, the vibration transmitting plate 100 can also be made of other single or composite materials that can achieve the same performance. For example, composite materials may include, but are not limited to, reinforcing materials such as glass fiber, carbon fiber, boron fiber, graphite fiber, silicon carbide fiber, or aramid fiber.
在一些實施例中，振動件120位於鏤空區域140內，用於連接磁路系統（圖中未示出）。在一些實施例中，振動件120可以為圖1所示的左右對稱並且上下也對稱的結構。在一些實施例中，振動件120的形狀可以為圓形、三角形、四邊形、五邊形、六邊形或者其他規則或不規則的形狀。在一些實施例中，振動件120的形狀可以與環狀結構110的形狀相同。例如，環狀結構110與振動件120的形狀可以均為圓環形，即環狀結構110與振動件120可以組成同心圓。在一些實施例中，磁路系統可以與振動件120的其中一個表面連接，連接方式可以包括但不限於膠接、焊接、卡接、銷釘連接或螺栓連接等。In some embodiments, the vibrating member 120 is located in the hollow area 140 for connecting to the magnetic circuit system (not shown in the figure). In some embodiments, the vibrating member 120 may have a left-right and vertically symmetrical structure as shown in FIG. 1 . In some embodiments, the shape of the vibrating member 120 may be a circle, a triangle, a quadrilateral, a pentagon, a hexagon, or other regular or irregular shapes. In some embodiments, the shape of the vibrating member 120 may be the same as the shape of the annular structure 110 . For example, the annular structure 110 and the vibrating member 120 may both be circular in shape, that is, the annular structure 110 and the vibrating member 120 may form concentric circles. In some embodiments, the magnetic circuit system can be connected to one surface of the vibrating member 120, and the connection method can include but is not limited to glue connection, welding, snap connection, pin connection or bolt connection, etc.
在一些實施例中，多個桿件位於環狀結構110與振動件120之間的鏤空區域，當傳振片120處於工作狀態時，磁路系統振動可以帶動振動件120沿垂直傳振片100所在平面的方向（即圖中垂直紙面的方向）上振動，使得磁路系統產生的振動能夠通過傳振片100傳遞至骨傳導耳機的殼體，殼體的振動通過使用者頭部的骨骼、血液、肌肉等傳遞到使用者的聽覺神經，使使用者可以聽到聲音。In some embodiments, multiple rods are located in the hollow area between the annular structure 110 and the vibrating member 120. When the vibration-transmitting plate 120 is in the working state, the vibration of the magnetic circuit system can drive the vibrating member 120 along the vertical vibration-transmitting plate 100. Vibrates in the direction of the plane (that is, the direction perpendicular to the paper in the figure), so that the vibration generated by the magnetic circuit system can be transmitted to the shell of the bone conduction earphone through the vibration transmission piece 100. The vibration of the shell passes through the bones of the user's head, Blood, muscles, etc. are transmitted to the user's auditory nerve, allowing the user to hear sounds.
在一些實施例中，傳振片100可以是一體式結構。例如，傳振片100可以採用注塑、鑄造、3D列印等一體成型的方式製造而成。又例如，傳振片100可以通過對片狀型材採用鐳射切割等方式切割出環狀結構110、振動件120以及多個桿件製造而成。在一些實施例中，傳振片100可以是分體式結構。例如，環狀結構110、振動件120以及多個桿件可以通過膠接、焊接、卡接等方式連接成為傳振片100。In some embodiments, the vibration transmission plate 100 may be an integral structure. For example, the vibration transmitting piece 100 can be manufactured by one-piece molding methods such as injection molding, casting, or 3D printing. For another example, the vibration transmitting plate 100 can be manufactured by cutting the ring-shaped structure 110, the vibrating member 120 and a plurality of rods from a sheet-shaped profile using laser cutting or other methods. In some embodiments, the vibration transmitting plate 100 may have a split structure. For example, the annular structure 110, the vibrating member 120, and multiple rod members can be connected to form the vibration transmitting piece 100 through gluing, welding, snapping, or other methods.
在一些實施例中，傳振片100中的桿件數量可以為多個，用於實現環狀結構110與振動件120之間的連接。在一些實施例中，傳振片中的桿件數量可以為3-5個，這樣可以保證傳振片100在工作過程中，穩定性更好，不容易發生偏斜，可靠性更強。所謂的偏斜指的是振動件120所在的平面與環狀結構110所在的平面出現不平行的情況，即兩個平面存在夾角的非正常狀態，該狀態在傳振片100的工作過程中會產生一些非正常的振動，不利於表現出骨傳導耳機的正常音質。In some embodiments, the number of rods in the vibration transmission piece 100 may be multiple, for realizing the connection between the annular structure 110 and the vibrating member 120 . In some embodiments, the number of rods in the vibration transmission piece can be 3-5, which can ensure that the vibration transmission piece 100 has better stability during operation, is less likely to deflect, and has greater reliability. The so-called deflection refers to the situation that the plane where the vibrator 120 is located and the plane where the annular structure 110 is located are not parallel, that is, there is an abnormal state in which the two planes are at an angle. This state will occur during the working process of the vibration transmission plate 100. Producing some abnormal vibrations is not conducive to the normal sound quality of bone conduction headphones.
在一些實施例中，用於連接環狀結構110與振動件120的多個桿件可以包括第一桿件131、第二桿件132以及第三桿件133。第一桿件131、第二桿件132以及第三桿件133沿振動件120的周向間隔分佈。在一些實施例中，多個桿件中的至少一個桿件至少具有兩個彎曲部。例如，第一桿件131具有兩個彎曲部，第二桿件132及第三桿件133均具有一個彎曲部。又例如，第一桿件131具有兩個彎曲部，第二桿件132具有三個彎曲部、第三桿件133具有兩個彎曲部。參見圖2所示，以第一桿件131作為示例性說明，第一桿件131包括了第一彎曲部1311及第二彎曲部1312，第一彎曲部1311的曲率中心A與第二彎曲部B則分別位於第一桿件131的兩側。需要說明的是，本說明書中所提到的彎曲部可以理解為桿件發生彎曲的部分，彎曲部的曲率則是指彎曲部的最大曲率，而彎曲部的曲率中心則是指最大曲率處所對應的曲率中心。In some embodiments, the plurality of rods used to connect the annular structure 110 and the vibrating member 120 may include a first rod 131 , a second rod 132 and a third rod 133 . The first rod 131 , the second rod 132 and the third rod 133 are spaced apart along the circumferential direction of the vibrating member 120 . In some embodiments, at least one of the plurality of bars has at least two bends. For example, the first rod 131 has two bending parts, and the second rod 132 and the third rod 133 each have one bending part. For another example, the first rod 131 has two bending parts, the second rod 132 has three bending parts, and the third rod 133 has two bending parts. Referring to FIG. 2 , the first rod 131 is used as an example. The first rod 131 includes a first bending part 1311 and a second bending part 1312 . The curvature center A of the first bending part 1311 and the second bending part B are located on both sides of the first rod 131 respectively. It should be noted that the bending part mentioned in this specification can be understood as the part of the rod that bends. The curvature of the bending part refers to the maximum curvature of the bending part, and the center of curvature of the bending part refers to the position corresponding to the maximum curvature. center of curvature.
在一些實施例中，可以通過減小桿件（例如，第一桿件131、第二桿件132以及第三桿件133）在特定方向（例如，鏤空區域的長度方向）上的彈性係數來使桿件變得更「軟」，以此有效減少載荷對桿件在該特定長度方向上的衝擊，從而提高傳振片100的使用壽命。示例性地，通過設置一個或多個曲率滿足一定條件的彎曲部，能夠增大桿件的長度，從而有效地降低桿件在鏤空區域的長度方向上較低的彈性係數。例如，第一桿件131、第二桿件132以及第三桿件133可以包括至少一個曲率為2 mm -1-10 mm -1的彎曲部。再例如，第一桿件131、第二桿件132以及第三桿件133可以包括至少一個曲率為4 mm -1-10 mm -1的彎曲部。再例如，第一桿件131、第二桿件132或第三桿件133可以包括至少一個曲率為6 mm -1-10 mm -1的彎曲部，彎曲部的曲率越大，其彎曲程度越大，這樣可以在空間有限的情況下增加桿件彎曲部的數量，進而增大桿件的長度，從而能夠更好地減小桿件在鏤空區域的長度方向上的彈性係數。在一些實施例中，第一彎曲部1311與第二彎曲部1312中的至少一個的曲率可以為2 mm -1-10 mm -1。 In some embodiments, the elastic coefficient of the rods (for example, the first rod 131 , the second rod 132 and the third rod 133 ) in a specific direction (for example, the length direction of the hollow area) can be reduced. By making the rod "softer", the impact of load on the rod in the specific length direction is effectively reduced, thereby increasing the service life of the vibration transmission plate 100. For example, by arranging one or more curved portions whose curvature meets certain conditions, the length of the rod can be increased, thereby effectively reducing the lower elastic coefficient of the rod in the length direction of the hollow region. For example, the first rod 131, the second rod 132, and the third rod 133 may include at least one curved portion with a curvature of 2 mm −1 to 10 mm −1 . For another example, the first rod 131, the second rod 132, and the third rod 133 may include at least one curved portion with a curvature of 4 mm −1 to 10 mm −1 . For another example, the first rod 131, the second rod 132 or the third rod 133 may include at least one curved portion with a curvature of 6 mm -1 -10 mm -1 . The greater the curvature of the curved portion, the greater the degree of curvature. Large, this can increase the number of bending parts of the rod when space is limited, thereby increasing the length of the rod, thereby better reducing the elastic coefficient of the rod in the length direction of the hollow area. In some embodiments, the curvature of at least one of the first bending part 1311 and the second bending part 1312 may be 2 mm -1 -10 mm -1 .
在一些實施例中，每個桿件還包括過渡部，過渡部連接於兩個彎曲部之間，並且過渡部兩端所連接部分對應的內法線方向分別指向桿件的兩側。以第一桿件131為例，繼續參見圖2所示，第一桿件131包括過渡部1313，過渡部1313的兩端分別與第一彎曲部1311及第二彎曲部1312連接。其中，第一彎曲部1311與過渡部1313連接的部分對應的內法線方向為箭頭a所示，第二彎曲部1312與過渡部1313連接的部分對應的內法線方向為箭頭b所示，內法線方向a與內法線方向b則分別指向第一桿件131的兩側。需要說明的是，本說明書所提到的過渡部可以理解為桿件上曲率小於一定閾值（例如，閾值為4 mm -1）而可以近似看成直線的部分。 In some embodiments, each rod further includes a transition portion connected between two bending portions, and the inner normal directions corresponding to the connected portions at both ends of the transition portion point to both sides of the rod respectively. Taking the first rod 131 as an example, as shown in FIG. 2 , the first rod 131 includes a transition portion 1313 , and both ends of the transition portion 1313 are connected to the first bending portion 1311 and the second bending portion 1312 respectively. Wherein, the inner normal direction corresponding to the part connecting the first bending part 1311 and the transition part 1313 is shown by arrow a, and the inner normal direction corresponding to the part connecting the second bending part 1312 and the transition part 1313 is shown by arrow b, The inner normal direction a and the inner normal direction b point to both sides of the first rod 131 respectively. It should be noted that the transition portion mentioned in this specification can be understood as the part of the rod whose curvature is less than a certain threshold (for example, the threshold is 4 mm -1 ) and can be approximately regarded as a straight line.
從圖1中可以看出，第一桿件131、第二桿件132以及第三桿件133的彎曲部的位置、彎曲部的曲率以及過渡部的位置各不相同，且相鄰兩個桿件在振動件120周向上的間距也有所不同。通過三個桿件的非對稱的設置，可以有效地解決與振動件120連接的磁路系統出現晃動時在殼體內發生碰撞並產生異響的問題。而且三個桿件具有彎曲部的設置，能夠減小傳振片100的尺寸（例如，在圖1所示的X方向上的尺寸），使得傳振片100能夠更好地安裝於殼體內的狹小空間，並且彎曲部的設置可以使得桿件在有限的空間內迂回，這樣可以減小桿件在X方向上的彈性係數，從而降低載荷對振動件100在該方向上受到的衝擊，進而降低桿件發生斷裂的風險。關於設置彎曲部以降低桿件斷裂的風險的更多描述可以在本說明書其他地方找到，在此不再贅述。As can be seen from FIG. 1 , the positions of the bending portions, the curvatures of the bending portions and the positions of the transition portions of the first rod 131 , the second rod 132 and the third rod 133 are different, and two adjacent rods The spacing between the components in the circumferential direction of the vibrating component 120 is also different. Through the asymmetric arrangement of the three rods, the problem of collision and abnormal sound in the housing when the magnetic circuit system connected to the vibrating member 120 shakes can be effectively solved. Moreover, the arrangement of the three rods with bent portions can reduce the size of the vibration-transmitting piece 100 (for example, the size in the space, and the arrangement of the bending portion allows the rod to detour in a limited space, which can reduce the elastic coefficient of the rod in the Risk of breakage of parts. Further description of the provision of bends to reduce the risk of rod breakage can be found elsewhere in this specification and will not be repeated here.
需要說明的是，圖1中的桿件數量、第一桿件131中的彎曲部數量、過渡部數量僅用於示例性描述，並不對其構成限制。在一些實施例中，傳振片100中的桿件數量還可以在三個以上，例如，傳振片還可以包括第四桿件或第五桿件等。在一些實施例中，第一桿件131還可以包括第三彎曲部、第四彎曲部等。It should be noted that the number of rods, the number of bends, and the number of transition portions in the first rod 131 in FIG. 1 are only for illustrative description and do not constitute a limitation. In some embodiments, the number of rods in the vibration transmission plate 100 may be more than three. For example, the vibration transmission plate may further include a fourth rod or a fifth rod. In some embodiments, the first rod 131 may further include a third bend, a fourth bend, and the like.
在一些實施例中，可以將傳振片100應用於骨傳導耳機並進行滾筒實驗，以驗證傳振片100的結構可靠性並進一步在此基礎上改進傳振片100的設計。在一些實施例中，傳振片100的失效形式包括：（1）如圖3A所示，第三桿件133的彎曲部（即位置T處）發生斷裂；（2）如圖3B所示，第三桿件133與環狀結構110的連接處（即位置U處）發生斷裂；（3）第二桿件132、第三桿件133發生塑性變形。通過統計各種失效形式對應的產品及/或樣品的數量，可以發現第三桿件133的彎曲部發生斷裂的傳振片100占比最大（即主要失效形式），其次是第三桿件133與環狀結構110的連接處發生斷裂的傳振片100（即次要失效形式），而少量的傳振片100出現了第二桿件132及第三桿件133發生塑性變形的情況。由此可以得出，第三桿件133是最容易導致傳振片100失效的危險桿件。In some embodiments, the vibration-transmitting plate 100 can be applied to bone conduction headphones and a roller experiment can be performed to verify the structural reliability of the vibration-transmitting plate 100 and further improve the design of the vibration-transmitting plate 100 on this basis. In some embodiments, the failure modes of the vibration transmitting plate 100 include: (1) As shown in Figure 3A, the bending portion of the third rod 133 (ie, at position T) breaks; (2) As shown in Figure 3B, The connection between the third rod 133 and the annular structure 110 (ie, the position U) breaks; (3) the second rod 132 and the third rod 133 undergo plastic deformation. By counting the number of products and/or samples corresponding to various failure modes, it can be found that the vibration-transmitting plates 100 with broken bends in the third rod 133 account for the largest proportion (i.e., the main failure mode), followed by the third rod 133 and The vibration-transmitting plates 100 are broken at the connection point of the annular structure 110 (ie, the secondary failure mode), and a small amount of the vibration-transmitting plates 100 have plastic deformation of the second rod 132 and the third rod 133. It can be concluded from this that the third rod 133 is the most dangerous rod that is most likely to cause the failure of the vibration transmission plate 100 .
在一些進一步的實施例中，傳振片100在工作時受到的載荷根據方向可以分為沿鏤空區域的長度方向上的載荷、沿鏤空區域的寬度方向上的載荷、軸向載荷（即垂直於振動件120所在平面的方向上的載荷）以及翻轉載荷（使傳振片100繞鏤空區域的長度方向翻轉的載荷）。通過對傳振片100進行單方向載荷疲勞模擬，可以研究傳振片100在上述各個方向的載荷下應力與疲勞失效迴圈次數的分佈情況，從而判斷傳振片100發生斷裂的主要原因，以便於傳振片100的改進及優化。In some further embodiments, the load received by the vibration transmitting plate 100 during operation can be divided into loads along the length direction of the hollow area, loads along the width direction of the hollow area, and axial loads (i.e., perpendicular to The load in the direction of the plane where the vibrating element 120 is located) and the overturning load (the load that causes the vibration transmission piece 100 to overturn around the length direction of the hollow area). By performing a unidirectional load fatigue simulation on the vibration-transmitting plate 100, the distribution of stress and fatigue failure cycles of the vibration-transmitting plate 100 under loads in the above-mentioned directions can be studied, thereby determining the main reasons for the fracture of the vibration-transmitting plate 100, so as to Improvement and optimization of the vibration transmission plate 100.
圖4A-4D分別是傳振片100在受到沿鏤空區域的長度方向上的載荷、沿鏤空區域的寬度方向上的載荷、軸向載荷以及翻轉載荷下的應力分佈示意圖。圖5A-5D分佈是傳振片100在受到沿鏤空區域的長度方向上的載荷、沿鏤空區域的寬度方向上的載荷、軸向載荷以及翻轉載荷下的疲勞失效次數的分佈示意圖。如圖4A所示，傳振片100在受到沿鏤空區域的長度方向上的載荷時，應力集中分佈在第三桿件133的彎曲部。如圖5A及圖5D所示，傳振片100在受到翻轉載荷時，第三桿件133的彎曲部導致傳振片的最小疲勞失效迴圈次數。由此可以得出，沿鏤空區域的長度方向上的載荷以及翻轉載荷是引起傳振片100的主要失效形式（即第三桿件133的彎曲部斷裂）的主要原因。在一些實施例中，為了減小傳振片100在鏤空區域的長度方向上受到的載荷的衝擊，可以降低傳振片100中各個桿件在沿鏤空區域的長度方向上的彈性係數。4A-4D are respectively schematic diagrams of the stress distribution of the vibration transmitting plate 100 when it is subjected to a load along the length direction of the hollow area, a load along the width direction of the hollow area, an axial load and an overturning load. Figures 5A-5D are distribution diagrams showing the number of fatigue failures of the vibration transmitting plate 100 when it is subjected to loads along the length direction of the hollow area, loads along the width direction of the hollow area, axial loads and flip loads. As shown in FIG. 4A , when the vibration transmitting plate 100 is subjected to a load along the length direction of the hollow area, stress is concentrated and distributed on the bending portion of the third rod 133 . As shown in FIGS. 5A and 5D , when the vibration-transmitting plate 100 is subjected to an overturning load, the bending portion of the third rod 133 causes the minimum number of fatigue failure cycles of the vibration-transmitting plate. It can be concluded from this that the load along the length direction of the hollow area and the overturning load are the main causes of the main failure mode of the vibration transmission piece 100 (ie, the bending portion of the third rod 133 is broken). In some embodiments, in order to reduce the impact of load on the vibration-transmitting piece 100 along the length direction of the hollow region, the elastic coefficient of each rod in the vibration-transmitting piece 100 along the length direction of the hollow region can be reduced.
在一些實施例中，根據應力計算公式（即應力等於受到的載荷除以桿件截面積）可知，通過增加桿件截面積可以達到減小桿件受到的衝擊應力的目的，以此來提高傳振片的抗衝擊性能，從而提高傳振片的使用壽命。在一些實施例中，增大桿件截面積可以通過增大桿件的寬度或厚度來實現。例如，桿件的厚度與振動件的厚度可以設置成一致，通過增大桿件的寬度來增大桿件的截面積。桿件的截面積可以理解為桿件與其延伸方向垂直的截面的面積。桿件寬度則可以理解為桿件垂直於其延伸方向上的尺寸。In some embodiments, according to the stress calculation formula (that is, the stress is equal to the load divided by the cross-sectional area of the rod), the impact stress on the rod can be reduced by increasing the cross-sectional area of the rod, thereby improving transmission. The impact resistance of the vibration plate is improved, thereby improving the service life of the vibration transmission plate. In some embodiments, increasing the cross-sectional area of the rod may be achieved by increasing the width or thickness of the rod. For example, the thickness of the rod and the thickness of the vibrating member can be set to be consistent, and the cross-sectional area of the rod is increased by increasing the width of the rod. The cross-sectional area of a rod can be understood as the area of the cross-section of the rod perpendicular to its extension direction. The width of the rod can be understood as the dimension of the rod perpendicular to its extension direction.
在一些實施例中，由於桿件寬度增加會引起傳振片的彈性係數（例如，沿鏤空區域的長度方向上的彈性係數、翻轉方向上的彈性係數）發生改變（即增大），彈性係數增大會造成傳振片在鏤空區域的長度方向上受到的載荷的衝擊增大。因此，在對傳振片100進行改進時，應綜合考慮桿件寬度與傳振片的彈性係數的關係，使得傳振片的彈性係數（例如，沿鏤空區域的長度方向上的彈性係數）的降低幅度大於桿件寬度的增加幅度，使得應力總體上可以降低。In some embodiments, since the increase in the width of the rod will cause the elastic coefficient of the vibration transmitting plate (for example, the elastic coefficient along the length direction of the hollow area, the elastic coefficient in the flip direction) to change (i.e. increase), the elastic coefficient The increase will cause the impact of the load on the vibration transmitting piece in the length direction of the hollow area to increase. Therefore, when improving the vibration-transmitting plate 100, the relationship between the width of the rod and the elastic coefficient of the vibration-transmitting plate should be comprehensively considered, so that the elastic coefficient of the vibration-transmitting plate (for example, the elastic coefficient along the length direction of the hollow area) is The reduction is greater than the increase in member width, allowing the stress to be reduced overall.
在一些實施例中，通過對傳振片100進行模擬實驗，可以得出桿件寬度的改變對傳振片100的彈性係數（例如，沿鏤空區域的長度方向上的彈性係數、翻轉方向上的彈性係數）的影響，從而得到較好的對桿件寬度的調整方案。具體地，可以通過研究傳振片沿鏤空區域的長度方向上的彈性係數及/或沿翻轉方向上的彈性係數、傳振片的易發生斷裂的截面（例如，圖3A所示的第三桿件133的位置T處對應的截面、圖3B所示的第三桿件的位置U處對應的截面）處的平均應力、疲勞失效迴圈次數隨桿件（例如，第三桿件）寬度變化的關係來實現。In some embodiments, by conducting simulation experiments on the vibration-transmitting plate 100, it can be concluded that the change in the width of the rod affects the elastic coefficient of the vibration-transmitting plate 100 (for example, the elastic coefficient along the length direction of the hollow area, the elastic coefficient in the flip direction elastic coefficient), thereby obtaining a better adjustment plan for the width of the rod. Specifically, it is possible to study the elastic coefficient of the vibration-transmitting plate along the length direction of the hollow area and/or the elastic coefficient along the flip direction, and the cross-section of the vibration-transmitting plate that is prone to breakage (for example, the third rod shown in Figure 3A The average stress and the number of fatigue failure cycles at the section corresponding to the position T of the member 133 and the section corresponding to the position U of the third member shown in Figure 3B change with the width of the member (for example, the third member). relationship to achieve.
圖6是根據本說明書一些實施例所示的傳振片沿鏤空區域的長度方向上的彈性係數的變化、第三桿件的彎曲部的最大曲率處對應的截面的平均應力與桿件寬度變化倍數的關係示意圖。圖7是根據本說明書一些實施例所示的傳振片在沿鏤空區域的長度方向的載荷下的疲勞失效迴圈次數、在沿鏤空區域的長度方向上的彈性係數的變化與桿件寬度變化倍數的關係示意圖。其中，在圖6中，曲線610為第三桿件的彎曲部的最大曲率處對應的截面的平均應力與桿件的總寬度增加倍數的關係曲線；曲線620為傳振片100沿鏤空區域的長度方向上的彈性係數的增加量與桿件的總寬度增加倍數的關係曲線。在圖7中，曲線710為傳振片100在沿鏤空區域的長度方向的載荷下的疲勞失效迴圈次數與桿件的總寬度增加倍數的關係曲線；曲線720為傳振片100沿鏤空區域的長度方向上的彈性係數的增加量與桿件的總寬度增加倍數的關係曲線。Figure 6 shows the changes in the elastic coefficient of the vibration transmitting plate along the length direction of the hollow area, the average stress of the section corresponding to the maximum curvature of the bending part of the third rod, and the change in the width of the rod according to some embodiments of this specification. Schematic diagram of the relationship between multiples. Figure 7 shows the number of fatigue failure cycles of the vibration-transmitting plate under load along the length direction of the hollow area, the change in elastic coefficient along the length direction of the hollow area, and the change in rod width according to some embodiments of this specification. Schematic diagram of the relationship between multiples. Among them, in Figure 6, curve 610 is the relationship between the average stress of the section corresponding to the maximum curvature of the bending part of the third rod and the increase multiple of the total width of the rod; curve 620 is the curve of the vibration transmission plate 100 along the hollow area. The relationship between the increase in the elastic coefficient in the length direction and the increase in the total width of the rod. In Figure 7, curve 710 is the relationship curve between the number of fatigue failure cycles of the vibration-transmitting plate 100 under the load along the length direction of the hollow area and the increase multiple of the total width of the rod; curve 720 is the relationship between the number of fatigue failure cycles of the vibration-transmitting plate 100 under the load along the length direction of the hollow area; The relationship curve between the increase in the elastic coefficient in the length direction and the multiple increase in the total width of the rod.
結合圖6及圖7可知，在傳振片受到沿鏤空區域的長度方向上的載荷時，隨著桿件寬度的減小，傳振片沿鏤空區域的長度方向上的彈性係數降低，第三桿件133的彎曲部的最大曲率處對應的截面的平均應力降低，由沿鏤空區域的長度方向上的載荷引起的疲勞失效迴圈次數而隨之增大。從圖7中可以看出，在桿件寬度減小20%後由沿鏤空區域的長度方向上的載荷引起的疲勞失效迴圈次數有著明顯上升，即傳振片的疲勞壽命有明顯提高。Combining Figures 6 and 7, it can be seen that when the vibration-transmitting piece is subjected to a load along the length direction of the hollow area, as the width of the rod decreases, the elastic coefficient of the vibration-transmitting piece along the length direction of the hollow area decreases. Thirdly, The average stress of the section corresponding to the maximum curvature of the bent portion of the rod 133 decreases, and the number of fatigue failure cycles caused by the load along the length direction of the hollow area increases accordingly. It can be seen from Figure 7 that after the width of the rod is reduced by 20%, the number of fatigue failure cycles caused by the load along the length direction of the hollow area increases significantly, that is, the fatigue life of the vibration transmission plate is significantly improved.
圖8是根據本說明書一些實施例所示的傳振片在翻轉方向上的彈性係數的變化、第三桿件與環狀結構的連接處對應的截面的平均應力與桿件寬度變化倍數的關係示意圖。圖9是根據本說明書一些實施例所示的傳振片在沿翻轉方向上的載荷下疲勞失效迴圈次數、沿翻轉方向上的彈性係數與桿件寬度變化倍數的關係示意圖。其中，在圖8中，曲線810為第三桿件與環狀結構的連接處對應的截面的平均應力與桿件的總寬度增加倍數的關係曲線；曲線820為傳振片在沿翻轉方向上的彈性係數的增加量與桿件的總寬度增加倍數的關係曲線。在圖9中，曲線910為傳振片100在沿翻轉方向的載荷下的疲勞失效迴圈次數與桿件的總寬度增加倍數的關係曲線；曲線920為傳振片100沿煩翻轉方向上的彈性係數的增加量與桿件的總寬度增加倍數的關係曲線。Figure 8 shows the relationship between the changes in the elastic coefficient of the vibration transmitting plate in the flip direction, the average stress of the section corresponding to the connection between the third rod and the ring structure, and the change multiple of the width of the rod according to some embodiments of this specification. Schematic diagram. Figure 9 is a schematic diagram showing the relationship between the number of fatigue failure cycles of the vibration transmitting plate under load along the flipping direction, the elastic coefficient along the flipping direction and the change multiple of the rod width according to some embodiments of this specification. Among them, in Figure 8, curve 810 is the relationship between the average stress of the section corresponding to the connection between the third rod and the annular structure and the increase multiple of the total width of the rod; curve 820 is the relationship between the vibration transmission plate and the vibration transmitting plate in the flip direction. The relationship between the increase in the elastic coefficient and the increase in the total width of the rod. In FIG. 9 , curve 910 is the relationship curve between the number of fatigue failure cycles of the vibration transmitting plate 100 under the load along the flipping direction and the increase multiple of the total width of the rod; curve 920 is the relationship between the number of fatigue failure cycles of the vibration transmitting plate 100 under the load along the flipping direction. The relationship between the increase in elastic coefficient and the increase in the total width of the member.
結合圖8及圖9所示，在傳振片受到沿翻轉方向上的載荷時，隨著桿件寬度的減小，傳振片沿翻轉方向上的彈性係數降低，第三桿件133與環狀結構110的連接處對應的截面的平均應力隨之降低，由沿翻轉方向上的載荷引起的疲勞失效迴圈次數隨桿件寬度減小先上升後降低。在一些實施例中，當桿件寬度減小20%時，由沿翻轉方向上的載荷引起的疲勞失效迴圈次數有著最大值，能夠更好地提高傳振片的疲勞壽命。As shown in FIGS. 8 and 9 , when the vibration transmitting piece is subjected to a load in the flipping direction, as the width of the rod decreases, the elastic coefficient of the vibration transmitting piece in the flipping direction decreases, and the third rod 133 and the ring The average stress of the section corresponding to the connection point of the shaped structure 110 decreases accordingly, and the number of fatigue failure cycles caused by the load in the overturning direction first increases and then decreases as the width of the rod decreases. In some embodiments, when the width of the rod is reduced by 20%, the number of fatigue failure cycles caused by the load in the flipping direction has a maximum value, which can better improve the fatigue life of the vibration transmission piece.
在一些實施例中，結合圖6、圖7以及圖8、圖9可知，在基於傳振片100進行改進時，通過適當減小桿件寬度（例如，減小桿寬度20%）有利於提高傳振片的疲勞壽命。在一些實施例中，桿件寬度可以在0.2mm-1 mm之間。優選地，桿件寬度可以在0.25mm-0.5 mm之間。桿件寬度可以在0.3mm-0.4 mm之間。為了便於桿件的加工，桿件的厚度一般為定值，在一些實施例中，桿件寬度與桿件厚度的比值不小於1。In some embodiments, it can be seen in conjunction with Figures 6 and 7 as well as Figures 8 and 9 that when making improvements based on the vibration transmission plate 100, appropriately reducing the width of the rod (for example, reducing the width of the rod by 20%) is beneficial to improving the The fatigue life of the vibration transmission plate. In some embodiments, the rod width may be between 0.2 mm and 1 mm. Preferably, the width of the rod may be between 0.25 mm and 0.5 mm. Rod width can be between 0.3mm-0.4 mm. In order to facilitate the processing of the rod, the thickness of the rod is generally a fixed value. In some embodiments, the ratio of the width of the rod to the thickness of the rod is not less than 1.
在一些實施例中，可以通過調整桿件數量、桿件彎曲部的數量及/或曲率以及桿件的長度及/或寬度等來減小桿件在鏤空區域的長度方向上的彈性係數，以此減小載荷對傳振片在鏤空區域的長度方向上的衝擊，從而提高傳振片的抗疲勞性能。In some embodiments, the elastic coefficient of the rod in the length direction of the hollow area can be reduced by adjusting the number of rods, the number and/or curvature of the bends of the rods, the length and/or width of the rods, etc., so as to This reduces the impact of the load on the vibration transmission piece in the length direction of the hollow area, thereby improving the fatigue resistance of the vibration transmission piece.
在一些實施例中，在傳振片100中，為了保證各個桿件能夠有足夠的長度形成彎曲部，以達到減小在鏤空區域140的長度方向上的彈性係數的目的，每個桿件的長度可以均大於鏤空區域沿其長度方向的最大尺寸D1的50%。在一些實施例中，為了保證桿件能夠有足夠的長度形成多個彎曲部，以增加桿件的迂回次數，達到進一步減小傳振片在鏤空區域140的長度方向上的彈性係數的目的，每個桿件的長度可以均大於鏤空區域140沿其長度方向的最大尺寸的65%。在一些實施例中，為了保證骨傳導耳機的音質，且能夠較好地減小傳振片100在鏤空區域140的長度方向上的彈性係數，每個桿件的長度可以均大於鏤空區域沿其長度方向的最大尺寸的75%。In some embodiments, in the vibration transmitting plate 100, in order to ensure that each rod has sufficient length to form a bend to achieve the purpose of reducing the elastic coefficient in the length direction of the hollow area 140, the length of each rod is The lengths may all be greater than 50% of the maximum dimension D1 of the hollow area along its length direction. In some embodiments, in order to ensure that the rod has sufficient length to form multiple bends to increase the number of detours of the rod and further reduce the elastic coefficient of the vibration transmission plate in the length direction of the hollow area 140, each The length of each rod member may be greater than 65% of the maximum dimension of the hollow area 140 along its length direction. In some embodiments, in order to ensure the sound quality of bone conduction earphones and to better reduce the elastic coefficient of the vibration transmission plate 100 in the length direction of the hollow area 140, the length of each rod may be greater than the length of the hollow area. 75% of the maximum size of the direction.
為了保證鏤空區域140具有充足的空間容納振動件120以及各個桿件（即第一桿件131、第二桿件132以及第三桿件133），並且能夠保證傳振片能夠適應骨傳導耳機的耳機芯內狹小的空間，在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1可以為8-20mm，沿其寬度方向的最大尺寸D2為3-8mm。在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1可以為8-15mm，沿其寬度方向的最大尺寸D2為3-6mm。在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1可以為8-12mm，沿其寬度方向的最大尺寸D2為3-6mm。In order to ensure that the hollow area 140 has sufficient space to accommodate the vibrating member 120 and each rod member (ie, the first rod member 131, the second rod member 132 and the third rod member 133), and to ensure that the vibration transmission plate can adapt to the bone conduction earphones. There is a small space in the earphone core. In some embodiments, the maximum dimension D1 of the hollow area 140 along its length direction may be 8-20 mm, and the maximum dimension D2 along its width direction may be 3-8 mm. In some embodiments, the maximum dimension D1 of the hollow area 140 along its length direction may be 8-15 mm, and the maximum dimension D2 along its width direction may be 3-6 mm. In some embodiments, the maximum dimension D1 of the hollow area 140 along its length direction may be 8-12 mm, and the maximum dimension D2 along its width direction may be 3-6 mm.
為了保證傳振片100具有較好的整體結構強度，並且保證鏤空區域140能夠為各個桿件（即第一桿件131、第二桿件132以及第三桿件133）的迂回提供充足的空間，並且保證各個桿件的彎曲部與環狀結構能夠保持一定的距離，避免傳振片在工作時出現各個桿件的彎曲部沿鏤空區域的寬度方向上發生晃動時與環狀結構發生碰撞，從而降低桿件的抗疲勞性能。在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1與沿其寬度方向的最大尺寸D2的比值可以為1.5-3。在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1與沿其寬度方向的最大尺寸D2的比值可以為1.5-2.5。在一些實施例中，鏤空區域140沿其長度方向的最大尺寸D1與沿其寬度方向的最大尺寸D2的比值可以為1.5-3。In order to ensure that the vibration transmitting plate 100 has good overall structural strength, and to ensure that the hollow area 140 can provide sufficient space for the detour of each rod member (ie, the first rod member 131, the second rod member 132 and the third rod member 133). , and ensure that the bending part of each rod can maintain a certain distance from the annular structure, so as to prevent the vibration transmission piece from colliding with the annular structure when the bending part of each rod shakes along the width direction of the hollow area during operation. Thereby reducing the fatigue resistance of the rod. In some embodiments, the ratio of the maximum dimension D1 along the length direction of the hollow region 140 to the maximum dimension D2 along the width direction of the hollow region 140 may be 1.5-3. In some embodiments, the ratio of the maximum dimension D1 along the length direction of the hollow region 140 to the maximum dimension D2 along the width direction of the hollow region 140 may be 1.5-2.5. In some embodiments, the ratio of the maximum dimension D1 along the length direction of the hollow region 140 to the maximum dimension D2 along the width direction of the hollow region 140 may be 1.5-3.
在一些實施例中，傳振片100的桿件具有纖維結構。纖維結構具有多層纖維，當桿件受到的力的方向與纖維的延伸方向平行或具有較小的夾角時，為纖維結構的纖維本體受力，此時桿件的承載能力較強，並不容易出現斷裂的情況。而當桿件受到的力的方向與纖維的延伸方向垂直或具有較大的夾角時，為多層纖維間的結合介面受力，此時桿件的承載能力大大降低，這樣有可能會導致纖維間出現分離的情況，從而造成桿件斷裂的情況。因此，在一些實施例中，傳振片的結構可以設置為至少一個桿件上曲率最大區域的切線方向與纖維結構的延伸方向的夾角為0°~30°。通過這樣設置，可以使得傳振片在工作時桿件所受到的力（例如，載荷對傳振片的鏤空區域的長度方向上的衝擊），為桿件的纖維結構中的纖維本體來受力，以此來提高桿件的承載能力，降低桿件斷裂的風險。以第三桿件133為例，參見圖10所示，第三桿件133曲率最大區域位置（即第三桿件133的彎曲部發生斷裂的位置）的切線方向為s1，纖維結構的延伸方向為s2，s1與s2的夾角B4為0°-30°。這樣大大提高了第三桿件133的彎曲部的承載能力，降低了第三桿件133的彎曲部發生斷裂的風險。In some embodiments, the rod members of the vibration transmission plate 100 have a fiber structure. The fiber structure has multiple layers of fibers. When the direction of the force on the rod is parallel to the extension direction of the fiber or has a small angle, the fiber body of the fiber structure bears the force. At this time, the load-bearing capacity of the rod is strong and it is not easy. Breakage occurs. When the direction of the force on the rod is perpendicular to or has a large angle with the extension direction of the fibers, the force is exerted on the bonding interface between the multiple layers of fibers. At this time, the load-bearing capacity of the rod is greatly reduced, which may lead to Separation occurs, causing the rod to break. Therefore, in some embodiments, the structure of the vibration transmitting piece can be set such that the angle between the tangent direction of the maximum curvature area on at least one rod and the extension direction of the fiber structure is 0° to 30°. Through this arrangement, the force that the rod experiences when the vibration-transmitting plate is working (for example, the impact of the load on the length direction of the hollow area of the vibration-transmitting plate) can be borne by the fiber body in the fiber structure of the rod. , in order to improve the load-bearing capacity of the rod and reduce the risk of rod fracture. Taking the third rod 133 as an example, as shown in Figure 10, the tangent direction of the maximum curvature area of the third rod 133 (that is, the position where the bending portion of the third rod 133 breaks) is s1, and the extension direction of the fiber structure is s2, and the angle B4 between s1 and s2 is 0°-30°. This greatly improves the load-bearing capacity of the curved portion of the third rod 133 and reduces the risk of fracture of the curved portion of the third rod 133 .
為了提高傳振片的結構穩定性，避免傳振片在工作時振動件發生晃動，在一些實施例中，本說明書實施例中的傳振片（例如，傳振片100）中的每個桿件的長度可以均不相同。這種非對稱的三桿結構設置相對於對稱結構（例如，四桿對稱式結構）的設置，可以較好地減小或避免振動件在工作過程中出現晃動的風險，從而可以降低或避免與振動件連接的磁路系統與骨傳導耳機的殼體或音圈發生碰撞而產生異響的幾率，保證骨傳導耳機具有較好的音質。除此之外，通過將傳振片中的每個桿件的長度設置得不相同，可以減小振動件以及桿件在鏤空區域的長度方向上的位移量（或稱為彈性形變），從而可以減小載荷對傳振片鏤空區域的長度方向上受到的衝擊，降低傳振片（例如，各個桿件）出現斷裂的風險。In order to improve the structural stability of the vibration-transmitting plate and prevent the vibration parts from shaking when the vibration-transmitting plate is working, in some embodiments, each rod in the vibration-transmitting plate (for example, the vibration-transmitting plate 100) in the embodiment of this specification The lengths of the pieces can all be different. Compared with a symmetrical structure (for example, a four-rod symmetrical structure), this asymmetrical three-rod structure can better reduce or avoid the risk of shaking of the vibrating part during work, thereby reducing or avoiding conflicts with The probability of the magnetic circuit system connected to the vibrating parts colliding with the shell or voice coil of the bone conduction earphones to produce abnormal sound ensures that the bone conduction earphones have good sound quality. In addition, by setting the length of each rod in the vibration transmission plate to be different, the displacement (or elastic deformation) of the vibrating part and the rod in the length direction of the hollow area can be reduced, thereby It can reduce the impact of load on the length direction of the hollow area of the vibration transmission piece, and reduce the risk of fracture of the vibration transmission piece (for example, each rod).
在一些實施例中，上述關於傳振片100中的相關參數（桿件寬度、桿件長度、彎曲部的曲率、桿件長度與鏤空區域沿長度方向的最大尺寸的比值以及鏤空區域沿長度方向的最大尺寸與其沿寬度方向的最大尺寸的比值等）可以適用於本說明書其他實施例中的傳振片（例如，圖11所示的傳振片200、圖14所示的傳振片300或圖15所示的傳振片400）。In some embodiments, the above-mentioned relevant parameters in the vibration transmitting plate 100 (rod width, rod length, curvature of the bend, ratio of the rod length to the maximum dimension of the hollow area along the length direction and the length direction of the hollow area The ratio of the maximum dimension to its maximum dimension along the width direction, etc.) can be applied to the vibration transmission plate in other embodiments of this specification (for example, the vibration transmission plate 200 shown in Figure 11, the vibration transmission plate 300 shown in Figure 14 or Vibration transmitting plate 400 shown in Figure 15).
在一些實施例中，可以通過增加桿件的彎曲部數量，來使得桿件在環狀結構與振動件之間形成的有限空間內多次迂回，以達到進一步減小傳振片在振動件提供的長度方向上的彈性係數的目的。In some embodiments, the number of bends of the rod can be increased to allow the rod to make multiple detours in the limited space formed between the annular structure and the vibrating part, so as to further reduce the vibration transmission plate provided by the vibrating part. The purpose of the elastic coefficient in the length direction.
圖11是根據本說明書一些實施例所示的傳振片的結構示意圖。如圖11所示，傳振片200包括了環狀結構210、振動件220以及多個桿件。環狀結構210的中部區域具有鏤空區域240。在一些實施例中，多個桿件可以包括第一桿件231、第二桿件232及第三桿件233，第一桿件231、第二桿件232以及第三桿件233沿振動件的周向間隔分佈。在一些實施例中，多個桿件（例如，第一桿件231、第二桿件232以及第三桿件233）的彎曲部的數量也可以不同。例如，第一桿件231中彎曲部的數量可以為兩個，第二桿件232中彎曲部的數量可以為四個，第三桿件233中彎曲部的數量可以為四個。在一些實施例中，多個桿件（例如，第一桿件231、第二桿件232以及第三桿件233）的彎曲部的數量可以相同。例如，第一桿件231、第二桿件232以及第三桿件233中彎曲部的數量可以均為兩個、三個或者四個等其他數量。示例性地，通過在各桿件上設置多個彎曲部，能夠增大桿件的長度，從而有效地降低桿件在鏤空區域的長度方向上較低的彈性係數，以降低載荷對傳振片200在鏤空區域的長度方向受到的衝擊。下面將結合附圖對各個桿件的具體結構進行詳細描述。傳振片200中的環狀結構210、振動件220、鏤空區域240以及第一桿件231與傳振片100中的環狀結構110、振動件220、鏤空區域140與第一桿件131的結構相類似，關於環狀結構210、振動件220、鏤空區域240以及第一桿件231的諸如尺寸、形狀等更多描述可以參考對於傳振片100的相關描述。Figure 11 is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification. As shown in FIG. 11 , the vibration transmitting plate 200 includes an annular structure 210 , a vibrating member 220 and a plurality of rods. The middle region of the annular structure 210 has a hollow region 240 . In some embodiments, the plurality of rods may include a first rod 231, a second rod 232, and a third rod 233. The first rod 231, the second rod 232, and the third rod 233 are arranged along the vibrating member. circumferential spacing distribution. In some embodiments, the number of bends of the plurality of rods (eg, the first rod 231 , the second rod 232 , and the third rod 233 ) may also be different. For example, the number of bending parts in the first rod 231 may be two, the number of bending parts in the second rod 232 may be four, and the number of bending parts in the third rod 233 may be four. In some embodiments, the number of bends of the plurality of rods (eg, the first rod 231 , the second rod 232 , and the third rod 233 ) may be the same. For example, the number of bending portions in the first rod 231 , the second rod 232 and the third rod 233 may be two, three, four or other numbers. For example, by arranging multiple bends on each rod, the length of the rod can be increased, thereby effectively reducing the lower elastic coefficient of the rod in the length direction of the hollow area to reduce the load on the vibration transmission plate. 200The impact received along the length of the hollow area. The specific structure of each rod will be described in detail below with reference to the accompanying drawings. The annular structure 210, the vibrating member 220, the hollow area 240 and the first rod 231 in the vibration transmission piece 200 and the annular structure 110, the vibrating member 220, the hollow area 140 and the first rod 131 in the vibration transmission piece 100 are The structures are similar. For more descriptions about the annular structure 210, the vibrating member 220, the hollow area 240 and the first rod 231, such as size, shape, etc., please refer to the related description of the vibration transmission plate 100.
圖12是根據本說明書一些實施例所示的第二桿件的結構示意圖。結合圖11及圖12，第二桿件232的一端與環狀結構210的內側連接，第二桿件232的另一端與振動件220連接。在一些實施例中，第二桿件232可以包括沿第二桿件232的桿身依次分佈的彎曲部2321、彎曲部2322、彎曲部2323以及彎曲部2324。在一些實施例中，不同彎曲部對應的曲率中心可以位於第二桿件232的兩側。第二桿件232的兩側是指沿第二桿件232由環狀結構210至振動件220的延伸方向的兩側。例如，圖12中示出的彎曲部2321的曲率中心C與彎曲部2322的曲率中心D分別位於第二桿件232的兩側。又例如，彎曲部2322的曲率中心D與彎曲部2324的曲率中心F位於第二桿件232（第四彎曲部2324）的兩側。再例如，彎曲部2323的曲率中心E與彎曲部2324的曲率中心F分別位於第二桿件232（過渡部2326）的兩側。在一些實施例中，第二桿件232中部分彎曲部的曲率中心也可以位於第二桿件232的同一側。例如，彎曲部2322的曲率中心D與彎曲部2323的曲率中心E位於第二桿件232的同一側。Figure 12 is a schematic structural diagram of a second rod according to some embodiments of this specification. 11 and 12 , one end of the second rod 232 is connected to the inside of the annular structure 210 , and the other end of the second rod 232 is connected to the vibrating member 220 . In some embodiments, the second rod 232 may include a bend 2321, a bend 2322, a bend 2323 and a bend 2324 sequentially distributed along the shaft of the second rod 232. In some embodiments, the centers of curvature corresponding to different bending portions may be located on both sides of the second rod 232 . The two sides of the second rod 232 refer to the two sides along the extending direction of the second rod 232 from the annular structure 210 to the vibrating member 220 . For example, the curvature center C of the bending portion 2321 and the curvature center D of the bending portion 2322 shown in FIG. 12 are located on both sides of the second rod 232 respectively. For another example, the curvature center D of the curved portion 2322 and the curvature center F of the curved portion 2324 are located on both sides of the second rod 232 (the fourth curved portion 2324). For another example, the curvature center E of the curved portion 2323 and the curvature center F of the curved portion 2324 are respectively located on both sides of the second rod 232 (transition portion 2326). In some embodiments, the center of curvature of the bent portion of the second rod 232 may also be located on the same side of the second rod 232 . For example, the curvature center D of the bending portion 2322 and the curvature center E of the bending portion 2323 are located on the same side of the second rod 232 .
在一些實施例中，第二桿件232還可以包括過渡部2325及過渡部2326。過渡部2325的兩端分別與彎曲部2321及彎曲部2322連接，過渡部2326的兩端分別與彎曲部2323及彎曲部2324連接。其中，彎曲部2321與過渡部2325的連接部分對應的內法線方向為箭頭c所示，彎曲部2322與過渡部2325的連接部分對應的內法線方向為箭頭d所示，過渡部2126的一端與彎曲部2323的連接部分對應的內法線方向為箭頭e所示，過渡部2326的另一端與彎曲部2324的連接部分對應的內法線方向為箭頭f所示，內法線方向c與內法線方向d分別指向第二桿件232的兩側。內法線方向e與內法線方向f分別指向第二桿件232的兩側。在一些實施例中，第二桿件232還包括過渡部2327，過渡部2327的兩端分別與彎曲部2322及彎曲部2323連接。其中，彎曲部2322與過渡部2327的連接部分對應的內法線方向為箭頭m所示，彎曲部2323與過渡部2327的連接部分對應的內法線方向為箭頭n所示。在一些實施例中，內法線方向m與n可以同時指向第二桿件232的同一側。In some embodiments, the second rod 232 may also include a transition portion 2325 and a transition portion 2326. The two ends of the transition portion 2325 are connected to the bending portion 2321 and the bending portion 2322 respectively, and the two ends of the transition portion 2326 are connected to the bending portion 2323 and the bending portion 2324 respectively. Wherein, the inner normal direction corresponding to the connection part of the bending part 2321 and the transition part 2325 is shown by the arrow c, the inner normal direction corresponding to the connection part of the bending part 2322 and the transition part 2325 is shown by the arrow d, and the transition part 2126 The inner normal direction corresponding to the connection part of one end of the bending part 2323 is shown by arrow e, the inner normal direction corresponding to the connection part of the other end of the transition part 2326 and the bending part 2324 is shown by arrow f, and the inner normal direction c and the inner normal direction d respectively point to both sides of the second rod 232 . The inner normal direction e and the inner normal direction f point to both sides of the second rod 232 respectively. In some embodiments, the second rod 232 further includes a transition portion 2327, and both ends of the transition portion 2327 are connected to the bending portion 2322 and the bending portion 2323 respectively. The inner normal direction corresponding to the connection part of the bending part 2322 and the transition part 2327 is shown by arrow m, and the inner normal direction corresponding to the connection part of the bending part 2323 and the transition part 2327 is shown by arrow n. In some embodiments, the inner normal directions m and n may point to the same side of the second rod 232 at the same time.
圖13是根據本說明書一些實施例所示的第三桿件的結構示意圖。結合圖11與圖13，第三桿件233的一端與環狀結構210連接，第三桿件233的另一端與振動件220連接。在一些實施例中，第三桿件233包括沿第三桿件233的桿身依次分佈的彎曲部2331、彎曲部2332、彎曲部2333以及彎曲部2334。其中，彎曲部2331的曲率中心G與彎曲部2332的曲率中心H分別位於第三桿件233（過渡部2335）的兩側。彎曲部2332的曲率中心H與彎曲部2334的曲率中心J分別位於第三桿件233（彎曲部2334）的兩側。彎曲部2333的曲率中心I與彎曲部2334的曲率中心J分別位於第三桿件233（過渡部2336）的兩側。在一些實施例中，彎曲部2332的曲率中心H與彎曲部2333的曲率中心I可以位於第三桿件233的同一側。Figure 13 is a schematic structural diagram of a third rod according to some embodiments of this specification. Combining FIG. 11 and FIG. 13 , one end of the third rod 233 is connected to the annular structure 210 , and the other end of the third rod 233 is connected to the vibrating member 220 . In some embodiments, the third rod 233 includes a bend 2331 , a bend 2332 , a bend 2333 and a bend 2334 sequentially distributed along the shaft of the third rod 233 . The curvature center G of the bending portion 2331 and the curvature center H of the bending portion 2332 are respectively located on both sides of the third rod 233 (transition portion 2335). The curvature center H of the curved portion 2332 and the curvature center J of the curved portion 2334 are respectively located on both sides of the third rod 233 (bent portion 2334). The curvature center I of the curved portion 2333 and the curvature center J of the curved portion 2334 are respectively located on both sides of the third rod 233 (transition portion 2336). In some embodiments, the curvature center H of the bending portion 2332 and the curvature center I of the bending portion 2333 may be located on the same side of the third rod 233 .
在一些實施例中，第三桿件233還包括過渡部2335及過渡部2336。第三桿件過渡部2335的兩端分別與彎曲部2331及彎曲部2332連接，過渡部2336的兩端分別與彎曲部2333及彎曲部2334連接。其中，彎曲部2331與過渡部2335的連接部分對應的內法線方向為箭頭g所示，彎曲部2332與過渡部2335的連接部分對應的內法線方向為箭頭h所示，彎曲部2333與過渡部2336的連接部分對應的內法線方向為箭頭i所示，彎曲部2334與過渡部2336的連接部分對應的內法線方向為箭頭j所示。其中，內法線方向g與內法線方向h分別指向第三桿件233的兩側。內法線方向i與內法線方向j分別指向第三桿件233的兩側。在一些實施例中，第三桿件233還包括過渡部2337，過渡部2337的兩端分別與彎曲部2332及彎曲部2333連接。其中，彎曲部2332與過渡部2337的連接部分對應的內法線方向為箭頭q所示，彎曲部2333與過渡部2337的連接部分對應的內法線方向為箭頭r所示。在一些實施例中，內法線方向q與內法線方向r可以同時指向第二桿件233的同一側。In some embodiments, the third rod 233 also includes a transition portion 2335 and a transition portion 2336 . The two ends of the third rod transition part 2335 are connected to the bending part 2331 and the bending part 2332 respectively, and the two ends of the transition part 2336 are connected to the bending part 2333 and the bending part 2334 respectively. Wherein, the inner normal direction corresponding to the connection part of the bending part 2331 and the transition part 2335 is shown by arrow g, the inner normal direction corresponding to the connection part of the bending part 2332 and the transition part 2335 is shown by arrow h, the bending part 2333 and The inner normal direction corresponding to the connection portion of the transition portion 2336 is indicated by arrow i, and the inner normal direction corresponding to the connection portion of the bending portion 2334 and the transition portion 2336 is indicated by arrow j. The inner normal direction g and the inner normal direction h point to both sides of the third rod 233 respectively. The inner normal direction i and the inner normal direction j point to both sides of the third rod 233 respectively. In some embodiments, the third rod 233 further includes a transition portion 2337, and both ends of the transition portion 2337 are connected to the bending portion 2332 and the bending portion 2333 respectively. The inner normal direction corresponding to the connection part of the bending part 2332 and the transition part 2337 is shown by arrow q, and the inner normal direction corresponding to the connection part of the bending part 2333 and the transition part 2337 is shown by arrow r. In some embodiments, the inner normal direction q and the inner normal direction r may point to the same side of the second rod 233 at the same time.
在一些實施例中，可以通過設置一個或多個曲率滿足一定條件的彎曲部，已增大桿件的長度，從而有效降低桿件在鏤空區域的長度方向上較低的彈性係數，第一桿件231、第二桿件232以及第三桿件233可以包括至少一個曲率為2-10的彎曲部。例如，第一桿件131、第二桿件132以及第三桿件133可以包括至少一個曲率為4-10的彎曲部。再例如，第一桿件131、第二桿件132以及第三桿件133可以包括至少一個曲率為6-10的彎曲部，彎曲部的曲率越大，其彎曲程度越大，這樣可以在空間有限的情況下，增加桿件彎曲部的數量，從而能夠更好地減小桿件在鏤空區域的長度方向上的彈性係數。例如，第二桿件232的彎曲部2321、2322、2323以及2324中的至少一個的曲率可以為2-10。又例如，第三桿件233的彎曲部2331、2332、2333以及2334中的至少一個的曲率可以為2-10。In some embodiments, the length of the rod can be increased by arranging one or more bends whose curvature meets certain conditions, thereby effectively reducing the lower elastic coefficient of the rod in the length direction of the hollow area. The first rod The member 231, the second member 232, and the third member 233 may include at least one curved portion with a curvature of 2-10. For example, the first rod 131, the second rod 132, and the third rod 133 may include at least one curved portion with a curvature of 4-10. For another example, the first rod 131, the second rod 132 and the third rod 133 may include at least one curved portion with a curvature of 6-10. The greater the curvature of the curved portion, the greater the degree of curvature, so that the curvature can be adjusted in space. Under limited circumstances, increasing the number of bends in the rod can better reduce the elastic coefficient of the rod in the length direction of the hollow area. For example, the curvature of at least one of the bent portions 2321, 2322, 2323, and 2324 of the second rod 232 may be 2-10. For another example, the curvature of at least one of the bending portions 2331, 2332, 2333 and 2334 of the third rod 233 may be 2-10.
為了保證第一桿件231、第二桿件232以及第三桿件233能夠有足夠的長度形成相應的彎曲部，以此達到減小傳振片200在鏤空區域的長度方向上的彈性係數，同時保證在空間有限的鏤空區域240中設置各桿件，在一些實施例中，第一桿件231的長度與鏤空區域沿其長度方向的最大尺寸（如圖11所示的D3）的比值為75%-85%；該第二桿件232的長度與鏤空區域240沿其長度方向的最大尺寸的比值為85%-96%；第三桿件233的長度與鏤空區域240沿其長度方向的最大尺寸的比值為70%-80%。在一些實施例中，第一桿件231的長度與鏤空區域240沿其長度方向的最大尺寸的比值為75%-83%；該第二桿件232的長度與鏤空區域240沿其長度方向的最大尺寸的比值為85%-94%；第三桿件233的長度與鏤空區域240沿其長度方向的最大尺寸的比值為70%-87%。在一些實施例中，第一桿件231的長度與鏤空區域240沿其長度方向的最大尺寸的比值為75%-80%；該第二桿件232的長度與鏤空區域240沿其長度方向的最大尺寸的比值為85%-90%；第三桿件233的長度與鏤空區域240沿其長度方向的最大尺寸的比值為70%-82%。僅作為示例性說明，在一些實施例中，傳振片200的鏤空區域240沿其長度方向的最大尺寸D3可以為15.05mm；傳振片200的鏤空區域240沿其寬度方向的最大尺寸D4可以為5.65mm；第一桿件231的長度可以為12.37mm；第二桿件232的長度可以為14.08mm；第三桿件233的長度可以為11.75mm。需要說明的是，此第一桿件231、第二桿件232及第三桿件233的長度是指其拉伸展開後的直線長度。In order to ensure that the first rod 231, the second rod 232 and the third rod 233 can have sufficient length to form corresponding bending portions, thereby reducing the elastic coefficient of the vibration transmission plate 200 in the length direction of the hollow area, at the same time It is ensured that each rod member is arranged in the hollow area 240 with limited space. In some embodiments, the ratio of the length of the first rod member 231 to the maximum dimension of the hollow area along its length direction (D3 as shown in Figure 11) is 75 %-85%; the ratio of the length of the second rod 232 to the maximum dimension of the hollow region 240 along its length direction is 85%-96%; the length of the third rod 233 to the maximum dimension of the hollow region 240 along its length direction. The size ratio is 70%-80%. In some embodiments, the ratio of the length of the first rod 231 to the maximum dimension of the hollow region 240 along its length direction is 75%-83%; the ratio of the length of the second rod 232 to the maximum dimension of the hollow region 240 along its length direction is The ratio of the maximum dimension is 85%-94%; the ratio of the length of the third rod 233 to the maximum dimension of the hollow area 240 along its length direction is 70%-87%. In some embodiments, the ratio of the length of the first rod 231 to the maximum dimension of the hollow region 240 along its length direction is 75%-80%; the ratio of the length of the second rod 232 to the maximum dimension of the hollow region 240 along its length direction is The ratio of the maximum dimension is 85%-90%; the ratio of the length of the third rod 233 to the maximum dimension of the hollow area 240 along its length direction is 70%-82%. For example only, in some embodiments, the maximum dimension D3 of the hollow area 240 of the vibration transmission plate 200 along its length direction may be 15.05 mm; the maximum dimension D4 of the hollow area 240 of the vibration transmission plate 200 along its width direction may be The length of the first rod 231 may be 12.37 mm; the length of the second rod 232 may be 14.08 mm; and the length of the third rod 233 may be 11.75 mm. It should be noted that the lengths of the first rod 231, the second rod 232 and the third rod 233 refer to their linear lengths after stretching.
在一些實施例中，繼續參見圖11所示，第一桿件231與振動件220的觸點P1與振動件的中心點O具有第一連線，第二桿件232與振動件220的觸點P2與振動件的中心點O具有第二連線，第三桿件233與振動件的觸點P3與振動件220的中心點O具有第三連線。其中，第一連線與第二連線的夾角B1或第一連線與第三連線的夾角B2大於第二連線與第三連線的夾角B3。在一些實施例中，當振動件220的形狀為規則的幾何形狀時，振動件220的中心點O為振動件220的幾何中心。例如，振動件220的形狀為圓形時，中心點O可以為該圓形的圓心。又例如，振動件220的形狀為矩形時，中心點O可以為該矩形的兩條對角線的交點。在一些實施例中，當振動件220的形狀為不規則的形狀時，振動件220的質心可以視作振動件220的中心點O。In some embodiments, as shown in FIG. 11 , the contact point P1 between the first rod 231 and the vibrating member 220 has a first connection line with the center point O of the vibrating member, and the contact point between the second rod 232 and the vibrating member 220 is There is a second connecting line between point P2 and the center point O of the vibrating element, and a third connecting line between the contact point P3 of the third rod 233 and the vibrating element and the center point O of the vibrating element 220 . Wherein, the angle B1 between the first connection line and the second connection line or the angle B2 between the first connection line and the third connection line is greater than the angle B3 between the second connection line and the third connection line. In some embodiments, when the shape of the vibrating member 220 is a regular geometric shape, the center point O of the vibrating member 220 is the geometric center of the vibrating member 220 . For example, when the shape of the vibrating member 220 is a circle, the center point O may be the center of the circle. For another example, when the shape of the vibrating member 220 is a rectangle, the center point O may be the intersection of two diagonals of the rectangle. In some embodiments, when the shape of the vibrating member 220 is an irregular shape, the center of mass of the vibrating member 220 may be regarded as the center point O of the vibrating member 220 .
在一些實施例中，第一連線與第二連線的夾角B1可以為100°-140°；第一連線與第三連線的夾角B2可以為120°-160°；第二連線與第三連線的夾角B3可以為70°-100°。在一些實施例中，第一連線與第二連線的夾角B1可以為105°-130°；第一連線與第三連線的夾角B2可以為120°-150°；第二連線與第三連線的夾角B3可以為70°-90°。在一些實施例中，第一連線與第二連線的夾角B1可以為100°-140°；第一連線與第三連線的夾角B2可以為120°-160°；第二連線與第三連線的夾角B3可以為75°-90°。在一些實施例中，第一連線與第二連線的夾角B1可以為110°-125°；第一連線與第三連線的夾角B2可以為120°-145°；第二連線與第三連線的夾角B3可以為75°-85°。在一些實施例中，第一連線與第二連線的夾角B1可以為115°-120°；第一連線與第三連線的夾角B2可以為125°-140°；第二連線與第三連線的夾角B3可以為75°-80°。In some embodiments, the angle B1 between the first connection line and the second connection line may be 100°-140°; the angle B2 between the first connection line and the third connection line may be 120°-160°; the second connection line The angle B3 with the third connecting line can be 70°-100°. In some embodiments, the angle B1 between the first connection line and the second connection line may be 105°-130°; the angle B2 between the first connection line and the third connection line may be 120°-150°; the second connection line The angle B3 with the third connecting line can be 70°-90°. In some embodiments, the angle B1 between the first connection line and the second connection line may be 100°-140°; the angle B2 between the first connection line and the third connection line may be 120°-160°; the second connection line The angle B3 with the third connection line can be 75°-90°. In some embodiments, the angle B1 between the first connection line and the second connection line may be 110°-125°; the angle B2 between the first connection line and the third connection line may be 120°-145°; the second connection line The angle B3 with the third connecting line can be 75°-85°. In some embodiments, the angle B1 between the first connection line and the second connection line may be 115°-120°; the angle B2 between the first connection line and the third connection line may be 125°-140°; the second connection line may be 125°-140°. The angle B3 with the third connecting line can be 75°-80°.
僅作為示例性說明，在一些實施例中，第一連線與第二連線的夾角B1可以為128°，第一連線與第三連線的夾角B2可以為145°，第二連線與第三連線的夾角B3可以為87°。作為示例，環狀結構210的鏤空區域為跑道形結構，振動件220為類似長方形的結構，圖11示出的振動件220的上下兩側具有向外部凸出的部分，為了保證各桿件具有較大長度，相鄰的兩個桿件之間形成的夾角（例如，夾角B1、B2及B3）不同，以此來保證桿件可以位於環狀結構210與振動件220之間的較大空間處，例如，圖11中示出的振動件220左右兩側的鏤空區域，進而使得桿件可以具有多個彎曲部，以進一步提高桿件的長度，降低桿件在鏤空區域長度方向的彈性係數，減小載荷對傳振片200在鏤空區域長度方向的衝擊，提高傳振片的使用壽命。For illustrative purposes only, in some embodiments, the angle B1 between the first connection line and the second connection line may be 128°, the angle B2 between the first connection line and the third connection line may be 145°, and the angle B1 between the first connection line and the third connection line may be 145°. The angle B3 with the third connecting line may be 87°. As an example, the hollow area of the annular structure 210 is a track-shaped structure, and the vibrating member 220 is a rectangular-like structure. The upper and lower sides of the vibrating member 220 shown in Figure 11 have portions that protrude outward. In order to ensure that each rod has Larger length, different angles (for example, angles B1, B2 and B3) formed between two adjacent rods to ensure that the rods can be located in a larger space between the annular structure 210 and the vibrating member 220 For example, the hollow areas on the left and right sides of the vibrating member 220 shown in FIG. 11 allow the rod to have multiple bends to further increase the length of the rod and reduce the elastic coefficient of the rod in the length direction of the hollow area. , reduce the impact of load on the vibration transmission piece 200 in the length direction of the hollow area, and improve the service life of the vibration transmission piece.
在一些實施例中，可以通過增大傳振片200中的各個桿件（即第一桿件231、第二桿件232以及第三桿件233）的寬度，來增大桿件的截面積，以此達到減小桿件內應力的目的，提高傳振片200的抗衝擊性能。In some embodiments, the cross-sectional area of the rods can be increased by increasing the width of each rod in the vibration transmission plate 200 (ie, the first rod 231, the second rod 232, and the third rod 233). , thereby achieving the purpose of reducing the internal stress of the rod and improving the impact resistance of the vibration transmission piece 200.
為了保證桿件具有較大的截面積，有效地抵抗衝擊載荷，減小衝擊內應力，提高傳振片的抗衝擊性能，在一些實施例中，傳振片200中的各個桿件的寬度可以大於0.25mm。在一些實施例中，傳振片200中的各個桿件的寬度可以大於0.28mm。在一些實施例中，傳振片200中的各個桿件的寬度可以大於0.3mm。In order to ensure that the rods have a large cross-sectional area, effectively resist impact loads, reduce impact internal stress, and improve the impact resistance of the vibration transmission plate, in some embodiments, the width of each rod in the vibration transmission plate 200 can be Greater than 0.25mm. In some embodiments, the width of each rod member in the vibration transmission plate 200 may be greater than 0.28 mm. In some embodiments, the width of each rod member in the vibration transmission plate 200 may be greater than 0.3 mm.
圖14是根據本說明書一些實施例所示的傳振片的結構示意圖。Figure 14 is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification.
在一些實施例中，本說明書實施例提供的傳振片還可以是如圖14所示的傳振片300。其中，圖14所示的傳振片300與圖1所示的傳振片100整體結構大致相同，二者區別在於圖14所示的第三桿件333與圖1所示的第三桿件133的結構不同。關於圖14所示的環狀結構310、振動件320、鏤空區域340以及第一桿件331、第二桿件332的更多描述可以分別參考圖1所示的環狀結構110、振動件120、鏤空區域140以及第一桿件131、第二桿件132的相關描述，在此不再贅述。下面將結合附圖對圖15所示的第三桿件333的結構進行詳細說明。In some embodiments, the vibration transmission plate provided in the embodiment of this specification may also be the vibration transmission plate 300 as shown in FIG. 14 . The overall structure of the vibration transmitting plate 300 shown in FIG. 14 is roughly the same as that of the vibration transmitting plate 100 shown in FIG. 1 . The difference between the two lies in the third rod 333 shown in FIG. 14 and the third rod shown in FIG. 1 The structure of 133 is different. For more description about the annular structure 310, the vibrating member 320, the hollow area 340, the first rod 331 and the second rod 332 shown in Fig. 14, please refer to the annular structure 110 and the vibrating member 120 shown in Fig. 1 respectively. , the hollow area 140 and the related descriptions of the first rod 131 and the second rod 132 will not be described again here. The structure of the third rod 333 shown in FIG. 15 will be described in detail below with reference to the accompanying drawings.
圖15是根據本說明書一些實施例所示的第三桿件的結構示意圖。Figure 15 is a schematic structural diagram of a third rod according to some embodiments of this specification.
如圖15所示，第三桿件333包括沿第三桿件333的桿身依次分佈的彎曲部3331、彎曲部3332、彎曲部3333以及彎曲部3334。在一些實施例中，第三桿件333中相鄰的兩個彎曲部對應的曲率中心位於第三桿件333的兩側。其中，彎曲部3331的曲率中心L與彎曲部3332的曲率中心V分別位於第三桿件333的兩側。彎曲部3332的曲率中心V與彎曲部3333的曲率中心W分別位於第三桿件333的兩側。彎曲部3333的曲率中心W與彎曲部3334的曲率中心Z分別位於第三桿件333的兩側。As shown in FIG. 15 , the third rod 333 includes a curved portion 3331 , a curved portion 3332 , a curved portion 3333 and a curved portion 3334 that are sequentially distributed along the shaft of the third rod 333 . In some embodiments, the corresponding curvature centers of two adjacent bending portions in the third rod 333 are located on both sides of the third rod 333 . The curvature center L of the bending portion 3331 and the curvature center V of the bending portion 3332 are located on both sides of the third rod 333 respectively. The curvature center V of the bending portion 3332 and the curvature center W of the bending portion 3333 are located on both sides of the third rod 333 respectively. The curvature center W of the bending portion 3333 and the curvature center Z of the bending portion 3334 are located on both sides of the third rod 333 respectively.
在一些實施例中，第三桿件333還包括過渡部3335、過渡部3336以及過渡部3337。過渡部3335的兩端分別與彎曲部3331及彎曲部3332連接，過渡部2336的兩端分別與彎曲部3332及彎曲部3333連接，過渡部3337的兩端分別與彎曲部3333及彎曲部3334連接。其中，彎曲部3331與過渡部3335連接部分對應的內法線方向為箭頭l所示，彎曲部3332與過渡部3335連接部分對應的內法線方向為箭頭v1所示，彎曲部3332與過渡部3336的連接部分對應的內法線方向為箭頭v2所示，彎曲部3333與過渡部3336的連接部分對應的內法線方向為箭頭w1所示，彎曲部3333與過渡部3337的連接部分對應的內法線方向為箭頭w2所示，彎曲部3334與過渡部3337的連接部分對應的內法線方向為箭頭z所示。其中，內法線方向l與內法線方向v1分別指向第三桿件333的兩側。內法線方向v2與內法線方向w1分別指向第三桿件333的兩側。內法線方向w2與內法線方向z分別指向第三桿件333的兩側。。In some embodiments, third rod 333 also includes transition portions 3335 , 3336 , and 3337 . The two ends of the transition portion 3335 are connected to the bending portion 3331 and the bending portion 3332 respectively, the two ends of the transition portion 2336 are connected to the bending portion 3332 and the bending portion 3333 respectively, and the two ends of the transition portion 3337 are connected to the bending portion 3333 and the bending portion 3334 respectively. . Among them, the inner normal direction corresponding to the connection part of the bending part 3331 and the transition part 3335 is shown by arrow l, the inner normal direction corresponding to the connection part of the bending part 3332 and the transition part 3335 is shown by arrow v1, the bending part 3332 and the transition part The inner normal direction corresponding to the connection part of 3336 is shown by arrow v2, the inner normal direction corresponding to the connection part of bending part 3333 and transition part 3336 is shown by arrow w1, and the inner normal direction corresponding to the connection part of bending part 3333 and transition part 3337 is shown by arrow w1. The inner normal direction is indicated by arrow w2, and the inner normal direction corresponding to the connection portion of the bending portion 3334 and the transition portion 3337 is indicated by arrow z. Among them, the inner normal direction l and the inner normal direction v1 point to both sides of the third rod 333 respectively. The inner normal direction v2 and the inner normal direction w1 point to both sides of the third rod 333 respectively. The inner normal direction w2 and the inner normal direction z point to both sides of the third rod 333 respectively. .
在一些實施例中，傳振片300在沿鏤空區域的長度方向上的載荷下以及翻轉載荷下的疲勞失效迴圈次數較高，具有較高的疲勞壽命。In some embodiments, the vibration transmission plate 300 has a higher number of fatigue failure cycles under load along the length direction of the hollow region and under overturning load, and has a higher fatigue life.
圖16是根據本說明書一些實施例所示的傳振片的結構示意圖。Figure 16 is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification.
如圖16所示，傳振片400可以包括環狀結構410、振動件420以及用於連接環狀結構410與振動件420的第一桿件431、第二桿件432、第三桿件433以及第四桿件434。其中，第一桿件431、第二桿件432、第三桿件433以及第四桿件434具有相同結構。具體地，第一桿件431、第二桿件432、第三桿件433以及第四桿件434的長度及寬度、彎曲部的數量以及彎曲部的曲率等均相同。以第一桿件431為例，第一桿件431具有多個彎曲部，其中，相鄰的兩個彎曲部的曲率中心位於第一桿件431的兩側。通過在桿件上設置多個彎曲部可以增加桿件的長度，從而降低桿件的彈性係數，使得載荷在傳振件400中鏤空區域的長度方向的衝擊降低，提高傳振片400的使用壽命。第一桿件431的彎曲部的數量可以為兩個、三個、四個或者更多，各彎曲部的曲率可以相同或不同。在一些實施例中，為了儘量避免振動件420在軸向方向（垂直於振動件420所在平面的方向）運動時發生偏重與翻轉，第一桿件431、第二桿件432、第三桿件433以及第四桿件434相對於振動件420呈對稱分佈，即第一桿件431、第二桿件432、第三桿件433、第四桿件434與振動件420組成了上下對稱且左右對稱的結構。傳振片400的沿鏤空區域的長度方向上的彈性係數以及沿翻轉方向上的彈性係數較低，有利於提高傳振片的抗疲勞性能。As shown in Figure 16, the vibration transmission piece 400 may include an annular structure 410, a vibrating member 420, and a first rod 431, a second rod 432, and a third rod 433 for connecting the annular structure 410 and the vibrating member 420. and a fourth member 434. Among them, the first rod 431, the second rod 432, the third rod 433 and the fourth rod 434 have the same structure. Specifically, the length and width, the number of bending parts, and the curvature of the bending parts are all the same. Taking the first rod 431 as an example, the first rod 431 has a plurality of curved portions, wherein the curvature centers of two adjacent curved portions are located on both sides of the first rod 431 . By arranging multiple bends on the rod, the length of the rod can be increased, thereby reducing the elastic coefficient of the rod, reducing the impact of the load in the length direction of the hollow area in the vibration transmission piece 400, and improving the service life of the vibration transmission piece 400. . The number of bending parts of the first rod 431 may be two, three, four or more, and the curvature of each bending part may be the same or different. In some embodiments, in order to avoid bias and overturning when the vibrating member 420 moves in the axial direction (the direction perpendicular to the plane where the vibrating member 420 is located), the first rod 431 , the second rod 432 , and the third rod are 433 and the fourth rod 434 are symmetrically distributed relative to the vibrator 420, that is, the first rod 431, the second rod 432, the third rod 433, the fourth rod 434 and the vibrator 420 form a vertically symmetrical and left-right structure. Symmetrical structure. The elastic coefficient of the vibration transmission piece 400 along the length direction of the hollow area and the elastic coefficient along the flip direction are low, which is beneficial to improving the fatigue resistance of the vibration transmission piece.
在一些實施例中，多個桿件為振動件提供的沿鏤空區域的長度方向的彈性係數（即傳振片沿鏤空區域的長度方向的彈性係數）可以為50 N/m-70000 N/m。傳振片沿鏤空區域的長度方向的彈性係數的確定方法為：將傳振片（例如，圖1、圖11、圖14或圖16所示的傳振片）的環狀結構進行固定，對振動件施加沿鏤空區域長度方向的恒定力Ft，確定振動件上任意一點（如中心點）沿鏤空區域的長度方向的位移u，則傳振片沿鏤空區域的長度方向的彈性係數k=Ft/u。如此設置，可以保證磁路系統在重力作用下沿鏤空區域的長度方向可以不碰到骨傳導耳機的殼體或音圈，保證骨傳導耳機具有較好的音質效果。在一些實施例中，多個桿件為該振動件提供的沿長度方向的彈性係數（即傳振片沿鏤空區域的長度方向的彈性係數）可以為7000 N/m- 20000 N/m。在一些實施例中，多個桿件為該振動件提供的沿長度方向的彈性係數（即傳振片沿鏤空區域的長度方向的彈性係數）可以為10000 N/m-20000 N/m，可以保證傳振片具有較好的抗疲勞性能。在一些實施例中，多個桿件為該振動件提供的沿長度方向的彈性係數（或稱為傳振片沿鏤空區域的長度方向的彈性係數）可以為40000 N/m-70000 N/m，能夠在保證骨傳導耳機音質的情況下，使傳振片具有更好的抗衝擊性能。In some embodiments, the elastic coefficient along the length direction of the hollow area provided by the multiple rods for the vibrating element (that is, the elastic coefficient of the vibration transmission plate along the length direction of the hollow area) can be 50 N/m-70000 N/m. . The elastic coefficient of the vibration transmission plate along the length direction of the hollow area is determined by: fixing the annular structure of the vibration transmission plate (for example, the vibration transmission plate shown in Figure 1, Figure 11, Figure 14 or Figure 16), and The vibrating element exerts a constant force Ft along the length direction of the hollow area. Determine the displacement u of any point on the vibrating element (such as the center point) along the length direction of the hollow area. Then the elastic coefficient of the vibration transmission plate along the length direction of the hollow area k = Ft /u. Such an arrangement can ensure that the magnetic circuit system does not touch the shell or voice coil of the bone conduction earphones along the length of the hollow area under the action of gravity, ensuring that the bone conduction earphones have better sound quality. In some embodiments, the elastic coefficient along the length direction provided by the plurality of rods for the vibrating member (that is, the elastic coefficient along the length direction of the vibration transmission plate along the hollow area) may be 7000 N/m-20000 N/m. In some embodiments, the elastic coefficient along the length direction provided by the plurality of rods for the vibrating member (that is, the elastic coefficient along the length direction of the vibration transmission piece along the hollow area) may be 10,000 N/m-20,000 N/m. Ensure that the vibration transmission piece has good fatigue resistance. In some embodiments, the elastic coefficient along the length direction provided by the plurality of rods for the vibrator (or the elastic coefficient along the length direction of the vibration transmission piece along the hollow area) may be 40,000 N/m-70,000 N/m. , which can make the vibration transmission piece have better impact resistance while ensuring the sound quality of bone conduction headphones.
傳振片在軸向（垂直傳振片所在平面的方向）的彈性係數與骨傳導耳機的音質相關，為了提高相應骨傳導耳機時的音質以及提高骨傳導耳機在低頻時的靈敏度，在一些實施例中，桿件為傳振片提供的軸向彈性係數範圍可以為（2πf 0） 2m，其中，m為骨傳導耳機中的磁路品質，f 0為骨傳導耳機在低頻時的諧振頻率。在一些實施例中，本說明書實施例中的傳振片在沿垂直其平面方向的振動時，其振動頻率回應曲線在50 Hz-2000 Hz的頻率範圍內具有諧振峰。諧振峰的出現可以使得傳振片在50 Hz-2000Hz的頻率範圍內諧振峰以外的振動頻率回應曲線內具有大致平坦的趨勢，這樣可以保證相應的骨傳導耳機具有較好的音質。除此之外，諧振峰可以使得相應的骨傳導耳機在50 Hz-2000 Hz的頻率範圍內具有較好的靈敏度。 The elastic coefficient of the vibration-transmitting piece in the axial direction (the direction perpendicular to the plane of the vibration-transmitting piece) is related to the sound quality of the bone conduction headphones. In order to improve the sound quality of the corresponding bone conduction headphones and improve the sensitivity of the bone conduction headphones at low frequencies, in some implementations In this example, the axial elastic coefficient range provided by the rod for the vibration transmission plate can be (2πf 0 ) 2 m, where m is the quality of the magnetic circuit in the bone conduction earphones, and f 0 is the resonant frequency of the bone conduction earphones at low frequencies. . In some embodiments, when the vibration transmitting plate in the embodiments of this specification vibrates in a direction perpendicular to its plane, its vibration frequency response curve has a resonance peak in the frequency range of 50 Hz-2000 Hz. The emergence of the resonant peak can make the vibration frequency response curve of the vibration transmission plate outside the resonant peak in the frequency range of 50 Hz-2000Hz have a roughly flat trend, which can ensure that the corresponding bone conduction headphones have better sound quality. In addition, the resonance peak can make the corresponding bone conduction headphones have better sensitivity in the frequency range of 50 Hz-2000 Hz.
在一些實施例中，多個桿件與振動件或環狀結構的連接處可以為圓角。這裡的圓角是指桿件在其寬度方向的兩側與振動件或環狀結構的連接處形成的圓角。在一些實施例中，桿件在其寬度方向的兩側與振動件或環狀結構的連接處形成的圓角可以包括第一圓角及第二圓角。例如，桿件在其寬度方向一側與振動件形成的角度為第一圓角，桿件在其寬度方向的另一側形成的角度為第二圓角。在一些實施例中，第一圓角可以與第二圓角相同或不同。通過圓角的設置，可以避免應力集中於桿件與振動件或環狀結構的連接處，降低連接處發生斷裂的風險。在一些實施例中，通過將圓角半徑設置得較小，可以降低傳振片沿鏤空區域的長度方向上的彈性係數，提高傳振片的抗疲勞性能。在一些實施例中，由於圓角過小，會導致傳振片受到沿鏤空區域的長度方向上的載荷下的疲勞失效迴圈次數較低，因此，在設計圓角半徑時，需權衡傳振片沿鏤空區域的長度方向上的彈性係數與傳振片受到沿鏤空區域的長度方向上的載荷下的失效迴圈次數與圓角半徑之間的關係。在一些實施例中，第一圓角的圓角半徑可以為0.2 mm-0.7 mm，第二圓角的圓角半徑可以為0.1 mm-0.3 mm。優選地，第一圓角的圓角半徑可以為0.3 mm-0.6 mm，第二圓角的圓角半徑可以為0.15 mm-0.25 mm。僅作為一具體示例，第一圓角的圓角半徑可以為0.4 mm，第二圓角的圓角半徑可以為0.2 mm。通過設置圓角能同時保證傳振片沿鏤空區域的長度方向上的彈性係數相對較低，受到沿鏤空區域的長度方向上的載荷下的疲勞失效迴圈次數相對較高。In some embodiments, the connection points between the plurality of rods and the vibrating member or the ring structure may be rounded. The fillet here refers to the fillet formed by the connection between the rod and the vibrating member or the ring structure on both sides of the width direction. In some embodiments, the rounded corners formed at the connection between the rod member and the vibrating member or the annular structure on both sides in the width direction may include a first rounded corner and a second rounded corner. For example, the angle formed by the rod on one side of the width direction and the vibrating element is a first rounded angle, and the angle formed by the rod on the other side of the width direction is a second rounded angle. In some embodiments, the first fillet may be the same as or different from the second fillet. Through the setting of rounded corners, it is possible to avoid stress concentration at the connection between the rod and the vibrating part or the ring structure, and reduce the risk of fracture at the connection. In some embodiments, by setting the fillet radius smaller, the elastic coefficient of the vibration transmission plate along the length direction of the hollow area can be reduced, and the fatigue resistance of the vibration transmission plate can be improved. In some embodiments, because the fillet is too small, the number of fatigue failure cycles of the vibration-transmitting piece under load along the length direction of the hollow area will be low. Therefore, when designing the radius of the fillet, a trade-off needs to be made for the vibration-transmitting piece. There is a relationship between the elastic coefficient along the length direction of the hollow region, the number of failure cycles and the fillet radius of the vibration transmitting piece under load along the length direction of the hollow region. In some embodiments, the fillet radius of the first fillet may be 0.2 mm-0.7 mm, and the fillet radius of the second fillet may be 0.1 mm-0.3 mm. Preferably, the fillet radius of the first fillet may be 0.3 mm-0.6 mm, and the fillet radius of the second fillet may be 0.15 mm-0.25 mm. Just as a specific example, the fillet radius of the first fillet may be 0.4 mm, and the fillet radius of the second fillet may be 0.2 mm. By setting rounded corners, it can be ensured that the elastic coefficient of the vibration transmitting piece along the length direction of the hollow area is relatively low, and the number of fatigue failure cycles under load along the length direction of the hollow area is relatively high.
在一些實施例中，為了減少傳振片沿著垂直於其所在平面的方向振動時出現偏重甚至翻轉的情況發生，可以調整各桿件的位置、長度、彎曲部數量使得各個桿件作用在振動件上的力矩平衡。通過這樣設置，當振動件沿著垂直於其所在平面的方向振動時，沿垂直於振動件所在平面的方向上，該振動件表面的位移最大值與該振動件表面的位移最小值的差值小於0.3 mm。由上文（例如，圖5D及其相關描述）可知，翻轉載荷也是引起傳振片失效（例如，第三桿件113的彎曲部斷裂）的原因之一，即可以避免振動件發生翻轉或使得振動件僅發生較小的翻轉，從而可以減小翻轉載荷或避免其產生，使傳振片在工作時處於一個較為平衡的狀態（即各個桿件作用在振動件上的力矩平衡），從而降低傳振片在翻轉載荷下出現斷裂的風險。除此之外，不同長度以及非對稱式的多桿件的傳振片（例如，圖1所示的傳振片100、圖11所示的傳振片200、圖14所示的傳振片300）在鏤空區域的長度方向與寬度放上都具有較高的穩定性，可以減小或避免振動件出現晃動的情況，而多桿件對稱設置的傳振片（例如，圖16所示的傳振片400），而桿件對稱設置的傳振片在鏤空區域的寬度方向上容易發生晃動，與其連接的磁路系統會與殼體或音圈發生碰撞。由此可見，通過設置不同長度以及非對稱式的多桿件的傳振片可以避免磁路系統也一起晃動而與骨傳導耳機的殼體或音圈發生碰撞而產生異響，保證骨傳導耳機具有較好的音質。In some embodiments, in order to reduce the bias or even overturning of the vibration-transmitting plate when it vibrates in a direction perpendicular to the plane where it is located, the position, length, and number of bends of each rod can be adjusted so that each rod acts on the vibration Moment balance on the parts. With this arrangement, when the vibrating element vibrates in a direction perpendicular to the plane where the vibrating element is located, the difference between the maximum displacement value of the vibrating element surface and the minimum displacement value of the vibrating element surface in the direction perpendicular to the plane of the vibrating element is Less than 0.3 mm. It can be seen from the above (for example, FIG. 5D and its related description) that the overturning load is also one of the reasons for the failure of the vibration transmission piece (for example, the bending part of the third rod 113 is broken), that is, to avoid the vibration part from overturning or causing the The vibrating part only slightly flips over, which can reduce the overturning load or avoid its occurrence, so that the vibration transmission plate is in a relatively balanced state when working (that is, the moments of each rod acting on the vibrating part are balanced), thereby reducing the There is a risk of the vibration-transmitting plate breaking under the overturning load. In addition, vibration-transmitting plates with different lengths and asymmetric multi-rod members (for example, the vibration-transmitting plate 100 shown in FIG. 1 , the vibration-transmitting plate 200 shown in FIG. 11 , the vibration-transmitting plate shown in FIG. 14 300) has high stability in the length direction and width of the hollow area, which can reduce or avoid the shaking of the vibrating part, and the vibration transmission plate with multiple rods symmetrically arranged (for example, as shown in Figure 16 The vibration-transmitting piece 400), and the vibration-transmitting piece symmetrically arranged on the rod is prone to shaking in the width direction of the hollow area, and the magnetic circuit system connected to it will collide with the shell or the voice coil. It can be seen that by setting up vibration-transmitting plates with different lengths and asymmetrical multi-rod members, the magnetic circuit system can be prevented from shaking together and colliding with the shell or voice coil of the bone conduction earphones to produce abnormal noise, ensuring that the bone conduction earphones Has better sound quality.
圖17是根據本說明書一些實施例所示的骨傳導耳機的整體示意圖。圖18是根據本說明書一些實施例所示的骨傳導耳機的斷面圖。結合圖17及圖18所示，本說明書實施例還提供了一種骨傳導耳機500。骨傳導耳機500包括了殼體結構510、傳振片520以及磁路結構530。其中，傳振片520可以是本說明書任一實施例所提供的傳振片（例如，傳振片100、200、300或400）。在一些實施例中，殼體結構510具有容置空間，傳振片520與磁路結構330位於該容置空間。其中，傳振片520的環狀結構521與殼體結構510的內壁周向連接，磁路結構530與傳振片520的振動件522連接。進一步地，磁路結構530連接於振動件522的下表面，當磁路結構330振動時，能夠通過傳振片520將振動傳遞給殼體結構510，最終傳遞到使用者的聽覺神經，使得使用者聽到聲音。在一些實施例中，振動件522的下表面設置有連接件523，連接件523與磁路結構530可以通過螺栓524及螺母525實現固定連接，從而實現振動件522與磁路結構530之間的連接。骨傳導耳機500通過採用本說明書任一實施例所提供的傳振片，能夠在保證具有較好的音質的情況下，避免了因為傳振片斷裂而影響客戶的使用體驗或者導致客戶退回產品的情況，降低了因客戶退回產品帶來的損失。Figure 17 is an overall schematic diagram of a bone conduction earphone according to some embodiments of this specification. Figure 18 is a cross-sectional view of a bone conduction earphone according to some embodiments of this specification. As shown in FIG. 17 and FIG. 18 , an embodiment of this specification also provides a bone conduction earphone 500 . The bone conduction earphone 500 includes a shell structure 510 , a vibration transmission piece 520 and a magnetic circuit structure 530 . The vibration transmitting piece 520 may be the vibration transmitting piece provided in any embodiment of this specification (for example, the vibration transmitting piece 100, 200, 300 or 400). In some embodiments, the housing structure 510 has an accommodating space, and the vibration transmission piece 520 and the magnetic circuit structure 330 are located in the accommodating space. Among them, the annular structure 521 of the vibration transmission piece 520 is circumferentially connected to the inner wall of the housing structure 510 , and the magnetic circuit structure 530 is connected to the vibration member 522 of the vibration transmission piece 520 . Further, the magnetic circuit structure 530 is connected to the lower surface of the vibrating member 522. When the magnetic circuit structure 330 vibrates, the vibration can be transmitted to the housing structure 510 through the vibration transmission piece 520, and finally transmitted to the user's auditory nerve, making the user The person hears the sound. In some embodiments, a connecting member 523 is provided on the lower surface of the vibrating member 522 . The connecting member 523 and the magnetic circuit structure 530 can be fixedly connected through bolts 524 and nuts 525 , thereby realizing the connection between the vibrating member 522 and the magnetic circuit structure 530 . connection. By using the vibration-transmitting piece provided in any embodiment of this specification, the bone conduction earphone 500 can avoid affecting the customer's experience or causing the customer to return the product due to the fracture of the vibration-transmitting piece while ensuring good sound quality. situation, reducing losses caused by customers returning products.
上文已對基本概念做了描述，顯然，對於所屬技術領域中具有通常知識者來說，上述詳細揭露內容僅僅作為示例，而並不構成對本發明的限定。雖然此處並沒有明確說明，所屬技術領域中具有通常知識者可能會對本發明進行各種修改、改進及修正。該類修改、改進及修正在本發明中被建議，所以該類修改、改進、修正仍屬於本發明示範實施例的精神與範圍。The basic concepts have been described above. It is obvious to those with ordinary knowledge in the technical field that the above detailed disclosures are only examples and do not constitute limitations to the present invention. Although not explicitly stated herein, various modifications, improvements and corrections to the present invention may be made by those skilled in the art. Such modifications, improvements, and corrections are suggested in the present invention, and therefore such modifications, improvements, and corrections remain within the spirit and scope of the exemplary embodiments of the present invention.
同時，本申請案使用了特定詞語來描述本發明的實施例。如「一個實施例」、「一實施例」、及/或「一些實施例」意指與本發明至少一個實施例相關的某一特徵、結構或特點。因此，應強調並注意的是，本說明書中在不同位置兩次或多次提及的「一實施例」或「一個實施例」或「一個替代性實施例」並不一定是指同一實施例。此外，本發明的一個或多個實施例中的某些特徵、結構或特點可以進行適當的組合。Also, this application uses specific words to describe embodiments of the invention. For example, "one embodiment", "an embodiment", and/or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the present invention. Therefore, it should be emphasized and noted that “one embodiment” or “an embodiment” or “an alternative embodiment” mentioned twice or more at different places in this specification does not necessarily refer to the same embodiment. . In addition, certain features, structures or characteristics of one or more embodiments of the invention may be combined appropriately.
此外，除非申請專利範圍中明確說明，本說明書所述處理元素及序列的順序、數位字母的使用、或其他名稱的使用，並非用於限定本說明書流程及方法的順序。儘管上述揭露中通過各種示例討論了一些目前認為有用的發明實施例，但應當理解的是，該類細節僅起到說明的目的，附加的申請專利範圍並不僅限於揭露的實施例，相反，申請專利範圍旨在覆蓋所有符合本說明書實施例實質與範圍的修正及等價組合。例如，雖然以上所描述的系統元件可以通過硬體設備實現，但是也可以只通過軟體的解決方案得以實現，如在現有的伺服器或移動設備上安裝所描述的系統。In addition, unless explicitly stated in the scope of the patent application, the order of the processing elements and sequences described in this specification, the use of numerical letters, or the use of other names are not used to limit the order of the processes and methods in this specification. Although the foregoing disclosure discusses through various examples some embodiments of the invention that are currently considered useful, it should be understood that such details are for illustrative purposes only and that the scope of the appended claims is not limited to the disclosed embodiments, but rather, the claims The patent scope is intended to cover all modifications and equivalent combinations that fall within the spirit and scope of the embodiments of this specification. For example, although the system components described above can be implemented through hardware devices, they can also be implemented through software-only solutions, such as installing the described system on an existing server or mobile device.
同理，應當注意的是，為了簡化本說明書揭露內容的表述，從而幫助對一個或多個發明實施例的理解，前文對本說明書實施例的描述中，有時會將多種特徵歸併至一個實施例、附圖或對其的描述中。但是，這種揭露方式並不意味著本說明書物件所需要的特徵比申請專利範圍中提及的特徵多。實際上，實施例的特徵要少於上述揭露的單個實施例的全部特徵。Similarly, it should be noted that, in order to simplify the presentation of the disclosure content of this specification and thereby facilitate understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this specification, multiple features are sometimes combined into one embodiment. , drawings or descriptions thereof. However, this mode of disclosure does not mean that the object of the description requires more features than are mentioned in the patent claim. In fact, embodiments may have less than all features of a single disclosed embodiment.
一些實施例中使用了描述成分、屬性數量的數字，應當理解的是，此類用於實施例描述的數字，在一些示例中使用了修飾詞「大約」、「近似」或「大體上」來修飾。除非另外說明，「大約」、「近似」或「大體上」表明該數字允許有±20%的變化。相應地，在一些實施例中，說明書與申請專利範圍中使用的數值參數均為近似值，該近似值根據個別實施例所需特點可以發生改變。在一些實施例中，數值參數應考慮規定的有效位數並採用一般位數保留的方法。儘管本說明書一些實施例中用於確認其範圍廣度的數值域與參數為近似值，在具體實施例中，此類數值的設定在可行範圍內盡可能精確。In some embodiments, numbers are used to describe the quantities of components and properties. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "approximately", "approximately" or "substantially" in some examples. Grooming. Unless otherwise stated, "approximately", "approximately" or "substantially" means that the number is allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and patent claims are approximations, and the approximations may vary depending on the desired features of individual embodiments. In some embodiments, numerical parameters should take into account a specified number of significant digits and use a general digit-preserving approach. Although the numerical ranges and parameters used to confirm the breadth of the ranges in some embodiments of this specification are approximations, in specific embodiments, such numerical values are set as accurately as feasible.
最後，應當理解的是，本說明書中所述實施例僅用以說明本說明書實施例的原則。其他的變形也可能屬於本說明書的範圍。因此，作為示例而非限制，本說明書實施例的替代配置可視為與本說明書的教導一致。相應地，本說明書的實施例不僅限於本說明書明確介紹與描述的實施例。Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Accordingly, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments expressly introduced and described in this specification.
100:傳振片 110:環狀結構 120:振動件 131:第一桿件 1311:第一彎曲部 1312:第二彎曲部 1313:過渡部 132:第二桿件 133:第三桿件 140:鏤空區域 200:傳振片 210:環狀結構 220:振動件 231:第一桿件 232:第二桿件 2321:彎曲部 2322:彎曲部 2323:彎曲部 2324:彎曲部 2325:過渡部 2326:過渡部 2327:過渡部 233:第三桿件 2331:彎曲部 2332:彎曲部 2333:彎曲部 2334:彎曲部 2335:過渡部 2336:過渡部 240:鏤空區域 300:傳振片 310:環狀結構 320:振動件 331:第一桿件 332:第二桿件 333:第三桿件 3331:彎曲部 3332:彎曲部 3333:彎曲部 3334:彎曲部 3335:過渡部 3336:過渡部 3337:過渡部 340:鏤空區域 400:傳振片 410:環狀結構 420:振動件 431:第一桿件 432:第二桿件 433:第三桿件 434:第四桿件 500:骨傳導耳機 510:殼體結構 520:傳振片 521:環狀結構 522:振動件 523:連接件 524:螺栓 525:螺母 530:磁路結構 610:曲線 620:曲線 710:曲線 720:曲線 810:曲線 820:曲線 910:曲線 920:曲線 a:箭頭/內法線方向 A:曲率中心 b:箭頭/內法線方向 B:第二彎曲部 B1:夾角 B2:夾角 B3:夾角 B4:夾角 c:箭頭/內法線方向 C:曲率中心 d:箭頭/內法線方向 D:曲率中心 D1:最大尺寸 D2:最大尺寸 D3:最大尺寸 D4:最大尺寸 e:箭頭/內法線方向 E:曲率中心 f:箭頭/內法線方向 F:曲率中心 g:箭頭/內法線方向 G:曲率中心 h:箭頭/內法線方向 H:曲率中心 i:箭頭/內法線方向 I:曲率中心 j:箭頭/內法線方向 J:曲率中心 l:箭頭/內法線方向 L:曲率中心 m:箭頭/內法線方向 n:箭頭/內法線方向 O:中心點 P1:觸點 P2:觸點 P3:觸點 q:箭頭/內法線方向 r:箭頭/內法線方向 s1:切線方向 s2:延伸方向 T:位置 U:位置 v1:箭頭/內法線方向 v2:箭頭/內法線方向 V:曲率中心 w1:箭頭/內法線方向 w2:箭頭/內法線方向 W:曲率中心 z:箭頭/內法線方向 Z:曲率中心 100:Vibration transmitting piece 110: Ring structure 120: Vibrating parts 131:First member 1311: First bending part 1312:Second bending part 1313:Transition Department 132:Second member 133: The third member 140: Hollow area 200:Vibration transmission piece 210: Ring structure 220: Vibrating parts 231:First member 232:Second member 2321:Bending part 2322:Bending part 2323:Bending part 2324:Bending part 2325:Transition Department 2326:Transition Department 2327:Transition Department 233:The third member 2331:Bending part 2332:Bending part 2333:Bending part 2334:Bending part 2335:Transition Department 2336:Transition Department 240: Hollow area 300: Vibration transmission piece 310: Ring structure 320: Vibrating parts 331:First member 332:Second member 333: The third member 3331:Bending part 3332:Bending part 3333:Bending part 3334:Bending part 3335:Transition Department 3336:Transition Department 3337:Transition Department 340: Hollow area 400: Vibration transmission piece 410: Ring structure 420: Vibrating parts 431:First member 432:Second member 433: The third member 434:The fourth member 500: Bone conduction headphones 510: Shell structure 520: Vibration transmission piece 521: Ring structure 522: Vibrating parts 523: Connector 524:Bolt 525: Nut 530:Magnetic circuit structure 610:Curve 620:Curve 710:Curve 720:Curve 810:Curve 820:Curve 910:Curve 920:Curve a: Arrow/inner normal direction A:Center of curvature b: Arrow/inner normal direction B: Second bending part B1: included angle B2: included angle B3: included angle B4: included angle c: Arrow/inner normal direction C:Center of curvature d: Arrow/inner normal direction D:Center of curvature D1: maximum size D2: maximum size D3: maximum size D4: maximum size e: Arrow/inner normal direction E:Center of curvature f: arrow/inner normal direction F: center of curvature g: arrow/inner normal direction G: center of curvature h: arrow/inner normal direction H: center of curvature i: arrow/inner normal direction I: center of curvature j: arrow/inner normal direction J: center of curvature l: Arrow/inner normal direction L: center of curvature m: arrow/inner normal direction n: arrow/inner normal direction O: center point P1:Contact P2:Contact P3:Contact q: Arrow/inner normal direction r: arrow/inner normal direction s1: tangent direction s2: extension direction T: location U: location v1: Arrow/inner normal direction v2: Arrow/inner normal direction V: center of curvature w1: Arrow/inner normal direction w2: Arrow/inner normal direction W: center of curvature z: arrow/inner normal direction Z: center of curvature
[圖1]係根據本說明書一些實施例所示的傳振片的結構示意圖；[Fig. 1] is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification;
[圖2]係根據本說明書一些實施例所示的第一桿件的結構示意圖；[Fig. 2] is a schematic structural diagram of the first rod shown in some embodiments of this specification;
[圖3A]係根據本說明書一些實施例所示的傳振片的失效形式示意圖；[Fig. 3A] is a schematic diagram of the failure mode of the vibration transmitting plate according to some embodiments of this specification;
[圖3B]係根據本說明書一些實施例所示的傳振片的失效形式示意圖；[Fig. 3B] is a schematic diagram of the failure mode of the vibration transmitting plate according to some embodiments of this specification;
[圖4A]係根據本說明書一些實施例所示的傳振片在沿鏤空區域的長度方向上的載荷下的應力分佈示意圖；[Fig. 4A] is a schematic diagram of the stress distribution of the vibration transmitting plate under load along the length direction of the hollow region according to some embodiments of this specification;
[圖4B]係根據本說明書一些實施例所示的傳振片在沿鏤空區域的寬度方向上的載荷下的應力分佈示意圖；[Fig. 4B] is a schematic diagram of the stress distribution of the vibration transmitting plate according to some embodiments of this specification under load along the width direction of the hollow area;
[圖4C]係根據本說明書一些實施例所示的傳振片在軸向載荷下的應力分佈示意圖；[Fig. 4C] is a schematic diagram of the stress distribution of the vibration transmitting plate under axial load according to some embodiments of this specification;
[圖4D]係根據本說明書一些實施例所示的傳振片在翻轉載荷下的應力分佈示意圖；[Fig. 4D] is a schematic diagram of the stress distribution of the vibration transmitting plate under flipping load according to some embodiments of this specification;
[圖5A]係根據本說明書一些實施例所示的傳振片在沿鏤空區域的長度方向上的載荷下的疲勞失效次數的分佈示意圖；[Fig. 5A] is a schematic diagram showing the distribution of the number of fatigue failures of the vibration transmitting plate under load along the length direction of the hollow region according to some embodiments of this specification;
[圖5B]係根據本說明書一些實施例所示的傳振片在沿鏤空區域的寬度方向上的載荷下的疲勞失效次數的分佈示意圖；[Fig. 5B] is a schematic diagram showing the distribution of the number of fatigue failures of the vibration transmitting plate under load along the width direction of the hollow area according to some embodiments of this specification;
[圖5C]係根據本說明書一些實施例所示的傳振片在軸向載荷下的疲勞失效次數的分佈示意圖；[Fig. 5C] is a schematic diagram showing the distribution of the number of fatigue failures of the vibration transmitting plate under axial load according to some embodiments of this specification;
[圖5D]係根據本說明書一些實施例所示的傳振片在翻轉載荷下的疲勞失效次數的分佈示意圖；[Fig. 5D] is a schematic diagram showing the distribution of the number of fatigue failures of the vibration transmitting plate under flipping load according to some embodiments of this specification;
[圖6]係根據本說明書一些實施例所示的傳振片沿鏤空區域的長度方向上的彈性係數的變化、第三桿件的彎曲部的最大曲率處對應的截面的平均應力與桿件寬度變化倍數的關係示意圖；[Figure 6] shows the changes in the elastic coefficient of the vibration transmitting plate along the length direction of the hollow area, the average stress of the section corresponding to the maximum curvature of the bending part of the third rod and the rod according to some embodiments of this specification. Schematic diagram of the relationship between width change multiples;
[圖7]係根據本說明書一些實施例所示的傳振片在沿鏤空區域的長度方向的載荷下的疲勞失效迴圈次數、在沿鏤空區域的長度方向上的彈性係數的變化與桿件寬度變化倍數的關係示意圖；[Figure 7] shows the number of fatigue failure cycles of the vibration-transmitting plate under load along the length direction of the hollow region, the change in elastic coefficient along the length direction of the hollow region, and the relationship between the rod and the vibration transmitting plate shown in some embodiments of this specification. Schematic diagram of the relationship between width change multiples;
[圖8]係根據本說明書一些實施例所示的傳振片在翻轉方向上的彈性係數的變化、第三桿件與環狀結構的連接處對應的截面的平均應力與桿件寬度變化倍數的關係示意圖；[Figure 8] shows the changes in the elastic coefficient of the vibration transmitting plate in the flip direction, the average stress of the section corresponding to the connection between the third rod and the annular structure, and the change multiple of the width of the rod according to some embodiments of this specification. diagram of the relationship;
[圖9]係根據本說明書一些實施例所示的傳振片在沿翻轉方向上的載荷下疲勞失效迴圈次數、沿翻轉方向上的彈性係數與桿件寬度變化倍數的關係示意圖；[Figure 9] is a schematic diagram showing the relationship between the number of fatigue failure cycles of the vibration transmitting plate under load along the flipping direction, the elastic coefficient along the flipping direction, and the change multiple of the rod width according to some embodiments of this specification;
[圖10]係根據本說明書一些實施例所示的第三桿件的結構示意圖；[Fig. 10] is a schematic structural diagram of the third rod shown in some embodiments of this specification;
[圖11]係根據本說明書一些實施例所示的傳振片的結構示意圖；[Fig. 11] is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification;
[圖12]係根據本說明書一些實施例所示的第二桿件的結構示意圖；[Fig. 12] is a schematic structural diagram of the second rod shown in some embodiments of this specification;
[圖13]係根據本說明書一些實施例所示的第三桿件的結構示意圖；[Fig. 13] is a schematic structural diagram of the third rod shown in some embodiments of this specification;
[圖14]係根據本說明書一些實施例所示的傳振片的結構示意圖；[Fig. 14] is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification;
[圖15]係根據本說明書一些實施例所示的第三桿件的結構示意圖；[Fig. 15] is a schematic structural diagram of the third rod shown in some embodiments of this specification;
[圖16]係根據本說明書一些實施例所示的傳振片的結構示意圖；[Fig. 16] is a schematic structural diagram of a vibration transmitting plate according to some embodiments of this specification;
[圖17]係根據本說明書一些實施例所示的骨傳導耳機的整體示意圖；[Fig. 17] is an overall schematic diagram of a bone conduction earphone according to some embodiments of this specification;
[圖18]係根據本說明書一些實施例所示的骨傳導耳機的斷面圖。[Fig. 18] is a cross-sectional view of a bone conduction earphone according to some embodiments of this specification.
100:傳振片 100:Vibration transmitting piece
110:環狀結構 110: Ring structure
120:振動件 120: Vibrating parts
131:第一桿件 131:First member
132:第二桿件 132:Second member
133:第三桿件 133: The third member
140:鏤空區域 140: Hollow area
D1:最大尺寸 D1: maximum size
D2:最大尺寸 D2: maximum size
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220621093.X | 2022-03-21 | ||
| CN202220621093.XU CN217428322U (en) | 2022-03-21 | 2022-03-21 | Vibration transmission sheet and bone conduction earphone |
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| Publication Number | Publication Date |
|---|---|
| TW202339516A true TW202339516A (en) | 2023-10-01 |
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|---|---|---|---|
| TW111145634A TW202339516A (en) | 2022-03-21 | 2022-11-29 | A vibration transmitting plate and a bone conduction earphone |
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| CN (1) | CN217428322U (en) |
| TW (1) | TW202339516A (en) |
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