TWI881431B - Apparatus adopting a transducer formed with linear micro-segments - Google Patents

Abstract

An apparatus adopting a transducer formed with linear micro-segments is provided. The apparatus has a shell, and a transducer is disposed within the shell. The transducer includes a linear micro-segment element formed with multiple micro-segments, one or more diaphragms, and a pair of magnetic elements disposed at two opposite sides of the linear micro-segment element. The magnetic elements form a magnetic field in-between passing through the linear micro-segment element. The one or more diaphragms are combined with the linear micro-segment element. When the linear micro-segment element is powered by a power source, an electric current is generated over the multiple micro-segments along a direction. The diaphragms can be moved with the linear micro-segment element when the magnetic field interacts with the electric current. A shock wave is formed and outputted via an outlet.

Description

Device using transducer element formed by straight-line micro-line segments

The present invention relates to a device using a transducer element, in particular to a device made of a transducer element formed by a straight-line micro-line segment.

Common magnetic components that can form magnetic fields, such as magnets or coils formed by metal windings, have a certain volume and weight. If used in electronic devices, they often make the electronic devices heavier and require a specific size of space to install these magnetic components.

If used in electronic devices that require miniaturization, such as headphones, hearing aids, or small speakers, this type of magnetic component requires special materials or designs to be installed in the device, or there is a need to form a specific magnetic field strength and related physical limitations that limit the effect of miniaturization, or the volume and weight of the magnetic component must be deliberately reduced under the demand for miniaturization, thereby reducing the effect of the magnetic component.

Although there have been significant advances in the materials of magnetic components that can generate magnetic fields, there are still physical limitations and high costs.

In order to propose a miniaturized, lightweight circuit element that can also interact with an external magnetic field, the disclosure document proposes a transducer element formed by a straight-line micro-line segment and a device made of the transducer element.

According to an embodiment, a device using a transducer element formed of a linear micro-segment is provided with a device housing, one or more cavities can be formed inside, and each cavity in the device housing is provided with a transducer element, and the transducer element includes a linear micro-segment element, which includes a plurality of metal segments with consistent directions made on a substrate, and there is a gap between adjacent metal segments, and one or more electrical contacts for electrically connecting to a positive or negative electrode of a power source are provided at either end of the plurality of metal segments. The linear micro-segment element includes one or more diaphragms, which are connected to the linear micro-segment element and can move with the linear micro-segment element. The linear micro-segment element includes at least one magnetic element, and the at least one magnetic element is provided on one side of the linear micro-segment element, and the at least one magnetic element forms a magnetic field passing through the linear micro-segment element.

According to an embodiment, the at least one magnetic element may be a first magnetic element and a second magnetic element, such as a magnet or a magnetic object that can form a stable magnetic force, disposed on both sides of the linear micro-segment element, and a magnetic field passing through the linear micro-segment element is formed between the first magnetic element and the second magnetic element.

When the linear micro-segment element is connected to a power source and powered on, multiple metal segments form currents in the same direction, which can interact with the magnetic field and drive the linear micro-segment element to move in one direction.

Furthermore, a first magnetic element and a second magnetic element are provided on both sides of the linear micro-segment element, and a magnetic force of attraction or repulsion can be formed between the first magnetic element and the second magnetic element.

In one embodiment, one or more diaphragms may be made of conductive material or provided with conductive lines, and may be connected to the linear micro-segment element with conductive glue. Furthermore, the diaphragm itself or the conductive line may connect the current generated by the power source to the multiple metal segments on the linear micro-segment element through the conductive glue to form current on the multiple metal segments.

Alternatively, multiple electrical contacts at both ends of multiple metal segments on the linear micro-segment element can be connected to a power source through one or more flexible circuit boards to form current on the multiple metal segments.

Alternatively, the two electrical contacts of the multiple metal segments on the linear micro-segment element form two electrode pads, which are connected to the power supply by wire bonding or welding. Furthermore, the transducer element is disposed in a transducer element shell, which can be made of a magnetically conductive material, and the transducer element is covered with a magnetically conductive part. Two electrode areas are disposed on the transducer element shell to provide wire bonding or welding to connect to the power supply.

Furthermore, the substrate can be implemented as silicon, ceramic, glass, sapphire, laser direct molding plastic, germanium wafer, gallium arsenide, indium phosphide, gallium nitride, silicon carbide, zinc selenide, glass fiber, epoxy resin, phenolic resin, polyimide, modified polyimide, liquid crystal polymer or Bismaleimide Triazine (BT), Ajinomoto Build-up Film (ABF), bakelite, plastic modified polyimide.

Furthermore, if the process described above uses silicon wafers, germanium wafers, gallium nitride, second-generation semiconductors, third-generation semiconductors as the main structure, or any metal layer design processed by chemical vapor deposition process, the metal layer thickness is 0.0001~10 microns and the line width/line spacing ratio is >0.3.

Furthermore, if the main structure is a printed circuit board (PCB), an IC substrate, a glass substrate or any other metal layer design processed by a modified semi-additive process (MSAP), a semi-additive process (SAP), a thick copper process or a subtractive process (tenting), the thickness of the metal layer is 0.1~80 microns and the ratio of line width/line spacing is >0.3.

Furthermore, a magnetic conductive material may be disposed on the substrate.

Furthermore, the diaphragm may be a magnetic permeable member, or a membrane made of a conductive material, and the diaphragm made of a conductive material can be used to electrically connect to the positive or negative pole of a power source.

Preferably, when the direction of the current supplied to the linear micro-segment element is repeatedly changed in the opposite direction, the linear micro-segment element is driven to move back and forth repeatedly in the corresponding direction.

Furthermore, the device housing may be provided with an outlet for outputting the shock waves generated by the movement of one or more diaphragms along with the linear micro-segment elements, thereby realizing an earphone or a hearing aid.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not used to limit the present invention.

10: Linear micro-segment element

100: Base material

101,103,105:Metal wire segment

11,12,13,14,15,16: Guide holes

107: Line segment gap

20: Linear micro-segment element

200: Base material

201:Metal wire segment

203: Line segment gap

21,22,23,24,25,26: Guide holes

30: Shell

301,303: First magnetic element

302: Second magnetic element

305: Linear micro-segment element

311,312: Magnetic lines of force

307: First magnetic element

308: Second magnetic element

306: Magnetic element

315: Magnetic wall

309: The first linear micro-segment element

310: Second linear micro-segment element

321,322,323,324: Magnetic lines of force

325: Diaphragm

F’: Movement direction

I’: current direction

B: Magnetic field direction

40: Diaphragm

405:Connection surface

401,402,403: Micro-segment area

501: First diaphragm

502: Second diaphragm

50: Linear micro-segment element

503,504: Extension of conductive glue

60,62: Flexible circuit board

701: first electrode pad

702: Second electrode pad

801: First magnetic element

802: Second magnetic element

803: Linear micro-segment element

811: First connection line

812: Second connection line

805: First electrode region

806: Second electrode region

80: Shell

901: Sound membrane

903: Second magnetic element

902: Suspended

905: Fixed core support piece

907: Gasket

909: First magnetic element

911: Magnetic element

913: Shell

110: Magnetic shell

111: First magnetic element

112: Second magnetic element

113: Diaphragm

114: Linear micro-segment element

115: Vibration direction

117: First magnetic field direction

118: Second magnetic field direction

119: Current direction

120: Magnetic shell

121: First magnetic element

122: Second magnetic element

123: The third magnetic element

124: Diaphragm

125: Linear micro-segment element

127: Vibration direction

128: Magnetic field direction

129: Current direction

FIG. 1 is a schematic diagram showing one embodiment of a straight-line micro-segment element; FIG. 2 is a schematic diagram showing a second embodiment of a straight-line micro-segment element; FIG. 3A to FIG. 3D are schematic diagrams showing the design principle of a transducer element using a straight-line micro-segment element; FIG. 4 is a schematic diagram showing the connection relationship of elements in a transducer element; FIG. 5 is a schematic diagram showing another embodiment of a transducer element formed by a straight-line micro-segment; FIG. 6 is a schematic diagram showing an embodiment of a transducer element in which a flexible circuit board is used to connect a power source; FIG. 7 is a schematic diagram showing the transducer element; FIG8 is a schematic diagram showing an embodiment of connecting an external power source to an external power source by using electrode pads at both ends of a metal line segment; FIG9 is a schematic diagram showing an embodiment of placing the transducer element in the internal structure of an earphone device; FIG10 and FIG11 are schematic diagrams showing a first embodiment of a transducer element formed by using a straight-line micro-line segment element; and FIG12 and FIG13 are schematic diagrams showing a second embodiment of a transducer element formed by using a straight-line micro-line segment element.

The following is a specific embodiment to illustrate the implementation of the present invention. The technical personnel in this field can understand the advantages and effects of the present invention from the content disclosed in this manual. The present invention can be implemented or applied through other different specific embodiments. The details in this manual can also be modified and changed based on different viewpoints and applications without deviating from the concept of the present invention. In addition, the drawings of the present invention are only for simple schematic illustration and are not depicted according to actual size. Please note in advance. The following implementation will further explain the relevant technical content of the present invention in detail, but the disclosed content is not used to limit the scope of protection of the present invention.

It should be understood that although the terms "first", "second", "third" and so on may be used in this article to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used in this article may include any one or more combinations of the related listed items depending on the actual situation.

The disclosure document proposes a device using a transducer element formed by a linear micro-segment. The basic structure of the linear micro-segment element and the transducer element formed based on the linear micro-segment element can refer to the embodiment diagrams shown in Figures 1 to 5 in the disclosure document. The linear micro-segment element shown can be formed on a substrate by a coating or metallization process, or a lithography and etching process to form a plurality of parallel metal segments with a consistent direction as shown in the diagram, which can realize a miniaturized transducer element and replace the related application of the known electromagnetic magnet that forms an electromagnetic field with a coil. The transducer element mainly means an element that converts electrical energy into kinetic energy. The current is introduced into the linear micro-segment in the transducer element to interact with the external magnetic field, and the electrical energy is converted into kinetic energy that drives the diaphragm. The movement of the diaphragm forms sound waves to generate audio signals.

The schematic diagram of the embodiment shown in FIG. 1 shows that there is a gap between adjacent metal segments, such as the segment gap 107 shown in the figure. The segment gap 107 can be a portion etched away by an etching process. A substrate 100 is provided, such as an insulator, preferably silicon, ceramic, glass, sapphire, laser direct molding plastic, germanium wafer, gallium arsenide, indium phosphide, gallium nitride, silicon carbide, zinc selenide, glass fiber, epoxy resin, phenolic resin, polyimide (PI), modified polyimide (MPI), liquid crystal polymer (LCP) polymer, bismaleimide triazine (BT), Ajinomoto build-up film (Ajinomoto Build-up The substrate 100 is made of ABF, bakelite, plastic or modified polyimide. The metal segments 101, 103 and 105 on the substrate 100 can be arranged in blocks. As shown in FIG1 , the embodiment has three blocks on the substrate 100, which are called micro-segment areas.

In this example, the linear micro-segment element 10 is composed of a plurality of adjacent micro-segment regions with a certain spacing (three are shown in this example), each micro-segment region is composed of a plurality of linear metal segments, and one or more electrical contacts for electrically connecting to the positive or negative electrode of a power source are provided at either end of the plurality of metal segments. According to the illustrated embodiment, electrical connection contacts are provided at the starting position and the ending position of each metal segment or its micro-segment region. Several electrical contacts of the positive and negative electrodes of the power source, i.e., vias 11, 12, 13, 14, 15 and 16 as shown in the figure, are used to electrically connect the electrode regions of the positive and negative electrodes of the power source in the integrated circuit. For example, the starting position of each metal segment forms the first electrode of the linear micro segment element 10, and the ending position of each metal segment forms the second electrode of the linear micro segment element 10.

More specifically, electrical contacts are formed at both ends of the micro-segment region formed by multiple metal segments 101, 103 and 105. One end such as the first electrode of the electrically connected element of vias 11, 13, 15 can be the negative electrode of the linear micro-segment element 10, and the other end such as the second electrode of the electrically connected element of vias 12, 14, 16 can be the positive electrode of the linear micro-segment element 10.

After the linear micro-segment element 10 is connected to a power source and energized, the stable current flowing through the plurality of metal segments 101, 103, 105 in the same direction can interact with an external magnetic field to generate a force of interaction between the magnetic field and the current, thereby realizing a transducer element, thereby generating vibrating sound-generating electromagnetic energy, which is converted into a mechanical energy, that is, the linear micro-segment element drives the connected diaphragm to vibrate, and then converts it into sound wave energy, which causes air vibration.

The material, line width, length, gap between adjacent metal line segments, or the number and area of the blocks divided by this legend of the metal line segments 101, 103 and 105 in the linear micro-segment element 10 are all parameters that determine the impedance value of the entire linear micro-segment element 10. Therefore, when designing this micro-coil element, it is necessary to know the impedance and the magnetic field conditions that are desired to be formed. For example, in the embodiment shown in the figure, when designing a plurality of parallel and directional straight metal line segments 101, 103 and 105, semiconductor processes (such as photolithography), IC substrates or printed circuit board processes can be used for manufacturing, with silicon wafers, germanium wafers, gallium nitride, second-generation semiconductors, third-generation semiconductors as the main structure, or any metal layer design processed by chemical vapor deposition process, the metal layer thickness is 0.0001~10 microns, and the line width/line spacing ratio is>0.3. Or a printed circuit board, an IC substrate, a glass substrate as the main structure or any other metal layer design processed by a modified semi-additive process (MSAP), a semi-additive process (SAP), a thick copper process or a subtractive process, the metal layer thickness is 0.1~80 microns, and the line width/line spacing ratio is >0.3. Forming metal segments with the same direction and maximized length on a limited substrate 100 area, and minimizing the segment gap 107 between adjacent metal segments, the purpose is to allow the metal segments 101, 103 and 105 that form the magnetic field to have the largest area and be able to withstand higher currents, and the design of the metal segments 101, 103 and 105 in the straight-line micro-segment element 10 forms multiple electrical contacts at both ends, mainly to provide a consistent current direction after the current is input.

An example of the size implementation of a linear micro-segment element is given, where the length of each micro-segment is in the millimeter level (mm), thereby forming a magnetic chip with an overall size level of square millimeters, and the internal segment width size and the distance between adjacent segments are in the micrometer or nanometer level (μm/nm).

Fig. 2 shows another embodiment of a micro-segment element having a plurality of straight metal segments. The figure shows a straight micro-segment element 20 formed on a substrate 200, which includes a plurality of parallel metal segments 201 with small spacing. The plurality of metal segments are integrated into a micro-segment region, and are not divided into several micro-segment regions as in the embodiment shown in Fig. 1. When manufacturing the linear micro-segment element 20, the semiconductor process can be used to minimize the segment gap 203 between adjacent metal segments 201. Similarly, the starting positions of multiple metal segments form the first electrode of the linear micro-segment element 20, and the end positions of each metal segment form the second electrode of the linear micro-segment element 20. The power source in the integrated circuit is electrically connected through multiple vias 21, 22, 23, 24, 25 and 26, so that the current passing through the metal segment 201 can interact with an external magnetic field.

The design of the linear micro-segment element 10 or the linear micro-segment element 20 described in the above embodiments can determine the total length, line width, line spacing between adjacent metal segments, length of each metal segment and/or material of the metal segments according to the impedance value, magnetic field or size requirements. In particular, the specifications of the linear micro-segment element can adjust the parameters such as impedance, line width, line length, etc. according to actual needs to provide customized elements.

Figure 3A shows a schematic diagram of the design principle of a transducer element using a linear micro-segment element.

In this illustration, the internal structure of a transducer element enclosed by a shell 30 is shown, wherein the main components include at least one magnetic element disposed inside, preferably the first magnetic element 301 and the second magnetic element 302 as shown. For example, at least one magnetic element such as the first magnetic element 301 and the second magnetic element 302 can be a magnet, or other magnetic objects that can form a stable magnetic force, and can be fixed on the inner walls of two opposite sides of the shell 30, respectively. When the first magnetic element 301 and the second magnetic element 302 are disposed, the relative magnetic properties thereof should be N pole and S pole, respectively, so that a magnetic field line 311 from N pole to S pole can be formed inside the shell 30 of the transducer element, as shown by the magnetic field direction indicated by the arrow connecting the first magnetic element 301 (N pole) to the second magnetic element 302 (S pole) in the figure.

The shell 30 of the transducer element is preferably made of a magnetically permeable material, that is, the transducer element is covered with a magnetically permeable member. According to the requirements, magnetically permeable materials with different magnetic permeabilities can be used to adjust (or strengthen) the degree of magnetization in the shell 30. The main function is to guide the magnetic path direction of the magnetic field formed by at least one magnetic element in the transducer element and strengthen the magnetic force. The main elements in the shell 30 also include a linear micro-segment element 305 including a substrate, or the linear micro-segment element 305 can be combined with a substrate of a specific material and set in the shell 30 in an elastically connected rather than fixed manner. The embodiments can refer to Figures 4 and 5. After the setting is completed, a power source (not shown in the figure) supplies current to this linear micro-segment element 305. For example, taking the linear micro-segment element shown in FIG. 1 as an example, the current can be input from the first electrode at one end of the micro-segment area formed by the metal segment in the linear micro-segment element 305, and after passing through multiple metal segments, it is output from the second electrode at the other end of the micro-segment area, that is, a current in one direction is formed in the linear micro-segment element 305.

Thus, the current direction (I’) or the reverse current direction (I’) passing through the linear micro-segment element 305 is acted upon by the magnetic field direction (B, i.e., the direction of the magnetic field lines 311) formed between the first magnetic element 301 and the second magnetic element 302, and a force perpendicular to the current direction (I’) and the magnetic field direction (B) is generated, which drives the elastically connected linear micro-segment element 305 (and its substrate or base) to move in the motion direction (F’) shown in the diagram. The magnetic field direction B and the current direction (I’) act to form a force (motion direction F’) that drives the linear micro-segment element 305, which can be expressed by equation 1.

FIG3B shows another schematic diagram of the design principle of the transducer element using a straight-line micro-segment element.

This example is different from the schematic diagram shown in FIG. 3A. In this example, the internal structure of the transducer element housing 30 is shown. Only one magnetic element is provided on one side of the linear micro-segment element 305, which is represented as the first magnetic element 303. It can also be a magnet, and the N pole and S pole thereof can still form a stable magnetic field, such as the magnetic force lines 312 schematically shown therein. The magnetic force formed inside the housing 30 can still work with the current passing through the metal line segment in the linear micro-segment element 305 to form a force to drive the linear micro-segment element 305.

In another schematic diagram of a transducer element using a linear micro-segment element shown in FIG3C, a first magnetic element 307 and a second magnetic element 308 are arranged opposite to each other. The polarity (N/S) on the magnetic elements (307, 308) shows that a mutually repelling magnetic force is formed between the first magnetic element 307 and the second magnetic element 308. Thus, a linear micro-segment element is arranged on a common side of the first magnetic element 307 and the second magnetic element 308, such as the first linear micro-segment element 309 shown in the figure, or linear micro-segment elements are arranged on both common sides of the first magnetic element 307 and the second magnetic element 308, such as the first linear micro-segment element 309 and the second linear micro-segment element 310 shown in the figure. According to this structural embodiment, one or two linear micro-segment elements such as the first linear micro-segment element 309 and the second linear micro-segment element 310 are arranged at the convergence point of the repulsive magnetic force formed between the first magnetic element 307 and the second magnetic element 308, so that the repulsive magnetic force can pass through one or two linear micro-segment elements.

According to the embodiment, a magnetic permeable element 306 may be provided between the first magnetic element 307 and the second magnetic element 308, and the magnetic permeable element 306 is used to guide the mutually repulsive magnetic force through one or two linear micro-segment elements (309, 310); moreover, the device housing covering the transducer element shown in FIG. 3C may be made of a magnetic permeable material to form a magnetic permeable wall 315 for guiding the mutually repulsive magnetic force.

The interaction between the magnetic force and the current flowing through the first linear micro-segment element 309 and the second linear micro-segment element 310 can form a force in one direction, which is converted into driving the linear micro-segment elements (309, 310) to move. When the transducer element formed by the first linear micro-segment element 309 and the second linear micro-segment element 310 is combined with the diaphragm 325, the diaphragm 325 can be driven to vibrate.

Referring to FIG. 3D for a schematic diagram of a transducer element, the first magnetic element 307 and the second magnetic element 308 can also be magnets, but unlike the schematic diagram shown in FIG. 3A, the magnetism of the first magnetic element 307 and the second magnetic element 308 disposed opposite to each other generates a mutually repulsive magnetic force, such as the magnetic lines of force 321, 322, 323 and 324 shown in the figure. The mutually repulsive magnetic force formed inside the device housing is guided by the magnetic conductive element 306 and the magnetic conductive wall 315, and can pass through the first linear micro-segment element 309 and the second linear micro-segment element 310. Under a specific design, the force that acts on the current of the metal line segment therein forms a force that drives the linear micro-segment elements (309, 310).

According to the above-mentioned schematic diagrams of transducer elements using linear micro-segment elements, the linear micro-segment element is provided with at least one magnetic element on at least one side thereof, or a first magnetic element (301, 303, 307) and a second magnetic element (302, 308) form a mutually attractive or repulsive magnetic force to drive the linear micro-segment element 305 to move, wherein the driving force formed can be expressed by equation 1.

F=q(v×B) (Equation 1)

Where F is the force of interaction between the magnetic field and the electric current, which is the force that drives the linear micro-segment element 305 to move in one direction, q represents the electric charge, and the charge q moves at a speed v to form an electric current, such as the current (I, I') in the above figure, and B is the magnetic field intensity, that is, the magnetic field formed by the magnetic elements (301, 302, 303, 307, 308) disposed on one side or both sides of the linear micro-segment element 305 in the above embodiment. In this way, a force F that drives the linear micro-segment element 305 (and its substrate or base) is formed. When the current direction (I') of the current supplied to the linear micro-segment element 305 can be repeatedly changed in the opposite direction, such as alternating current, the linear micro-segment element 305 can be driven to move back and forth in one direction repeatedly, that is, to move back and forth in two opposite movement directions F'.

Next, please refer to the schematic diagram of the connection relationship of the elements in the transducer element shown in Figure 4. In the figure, the linear micro-segment element 305 is provided with several micro-segment areas 401, 402 and 403 having multiple metal segments in the same direction, which can form a current in one direction on the linear micro-segment element 305, that is, fast-moving electrons. When a magnetic field in one direction is applied, a force that drives the linear micro-segment element 305 to move can be generated.

In this example, a linear micro-segment element 305 that can move in one direction (such as the movement direction F') is combined with a diaphragm 40 in the transducer element. For example, the two are connected by the connecting surface 405 shown in the figure, and the connection is approximately perpendicular to drive the diaphragm 40 to vibrate. This figure shows that the linear micro-segment element 305 drives the diaphragm 40 to vibrate up and down. That is, in this transducer element, the current and magnetic field of the linear micro-segment element 305 are converted into a force that drives the diaphragm 40 to vibrate. It should be mentioned here that there can be two diaphragms 40, and the other can be set below the device in the figure, so that the linear micro-segment element 305 drives the two diaphragms to vibrate together through the force of the interaction between the magnetic field and the current.

The transducer element shown in FIG4 is provided with a diaphragm joined to a linear micro-segment element, and the diaphragm can move with the linear micro-segment element. FIG5 then shows another embodiment schematic diagram, which shows one or more diaphragms joined to a linear micro-segment element 50 in the transducer element, and this example shows a first diaphragm 501 and a second diaphragm 502 arranged relatively to each other, so that when the linear micro-segment element 50 with current interacts with the magnetic field therein to generate movement, especially repeated movement, the first diaphragm 501 and the second diaphragm 502 can jointly form a shock wave of the same frequency. According to one embodiment, an external control circuit can control the current intensity passing through the linear micro-segment element 50 to determine the frequency of the shock wave, thereby emitting sound.

In one embodiment, the one or more diaphragms (the first diaphragm 501 and the second diaphragm 502) can be made of conductive material so that the diaphragm itself can conduct electricity, or a conductive line is provided to connect the linear micro-segment element 50 with conductive glue, including electrical contacts of multiple metal segments of the linear micro-segment element 50 that can be electrically connected through the extended parts 503, 504 of the conductive glue. In this way, one or more diaphragms (501, 502) or conductive lines can connect the current generated by the power source to multiple electrical contacts on the linear micro-segment element 50 through the conductive glue.

One of the means of energizing multiple metal segments on a linear micro-segment element can refer to the schematic diagram of an embodiment of connecting a power source using a flexible circuit board in a transducer element shown in FIG6 . The figure shows that the electrical contacts of different polarities of each metal segment on a linear micro-segment element 50 are connected to multiple flexible circuit boards 60, 62 using connectors, wherein the flexible circuit boards 60, 62 have multiple electrical connection wires for connecting the positive and negative electrodes at both ends of multiple metal segments on the linear micro-segment element 50, so that multiple electrical contacts at both ends of multiple metal segments are connected to the power source of the device through this flexible circuit board 60.

The embodiment of the transducer element shown in FIG7 is that electrode pads are provided at both ends of the metal line segment of the linear micro-line segment element, showing a first electrode pad 701 and a second electrode pad 702, thereby electrically connecting to an external power source.

The embodiment can be further referred to in FIG8 , which shows a schematic diagram of connecting the transducer element to an external power source by wire bonding or welding. The figure shows that the first magnetic element 801 and the second magnetic element 802 for forming a magnetic field are arranged in the shell (magnetic permeable member) 80 of the transducer element, wherein a linear micro-segment element 803 is arranged therein, and the two end electrical contacts of the plurality of parallel metal segments on the linear micro-segment element 803 are provided with electrode pads, which are respectively connected to two electrode regions arranged on the transducer element shell 80 by a first connecting wire 811 and a second connecting wire 812. The figure shows that a groove is filled with conductive material on the shell 80 to form a first electrode region 805 and a second electrode region 806 electrically connected to the first connecting wire 811 and the second connecting wire 812. It is worth mentioning that the first connection line 811 and the second connection line 812 can be made of conductive materials and can be connected to the electrode area by wire bonding, or connected to the electrode area by welding through welding materials.

Furthermore, according to one of the embodiments, the diaphragm can be a magnetic permeable member or a membrane made of a conductive material. The magnetic permeable member implemented by the diaphragm can guide the magnetic path direction of the magnetic field formed by the magnetic element in the transducer element and strengthen the magnetic force; if the diaphragm is made of a conductive material, the diaphragm can be used to electrically connect to the positive or negative pole of the power source to obtain the electrical connection method shown in the above embodiment.

According to the device described in the above embodiment, when the direction of the current supplied to the linear micro-segment element in the device is repeatedly changed in the opposite direction, that is, the linear micro-segment element is driven to move back and forth repeatedly in the direction, and at the same time, one or more diaphragms are driven to generate shock waves. The transducer element formed thereby is set in the device to realize headphones or hearing aids.

According to the embodiments disclosed in the disclosure, the device using the transducer element formed by the straight micro-line segment is taken as an example of a speaker element, one of the main purposes of which is to replace the traditional magnetic elements such as coils and magnets in the speaker element with the transducer element formed by the straight micro-line segment. The speaker element is an electronic element that converts electrical signals into sound wave signals in devices such as headphones, hearing aids, and speakers. The internal components can refer to the schematic diagram of the speaker element embodiment shown in Figure 9.

FIG. 9 shows the main components of a speaker element. The diaphragm proposed in the above embodiment is a sound membrane 901 in this embodiment. The sound membrane 901 is a component that generates sound by vibration and is fixed to a dangling The edge 902 is elastically connected to the housing 913 of the speaker element and is combined with the second magnetic element 903 and the fixed core support 905 that fixes the second magnetic element 903. In particular, the second magnetic element 903, the sound membrane 901 and the related structural elements can be realized by the transducer element formed by the linear micro-segment in the above embodiment. The linear micro-segment element is driven by the current to drive the sound membrane 901 to move. These elements can be installed in the gasket 907. Other elements include the magnetic permeability element 911 on the other side and the first magnetic element 909, and finally installed in the housing 913.

The sound film 901 (in practice, it can be a film with a thickness of about 3-20um, but it is not limited to the proposed sound film 901) can select different materials according to different audio frequencies. For example, the sound film material that can produce high pitch can be ceramic, glass or metal; the sound film material that produces bass can be carbon material, plastic (such as PI, PE, PEN, PEEK, PEI, PEK, PET, etc.), or a specific metal alloy. The magnetic field in the transducer element can interact with the magnetic permeability element 911 that guides the magnetic field and the first magnetic element 909 (such as a magnet or other element that can sense and form a magnetic field). By changing the current and direction, a magnetic field that can change polarity is formed, that is, the sound film 901 of the transducer element moves back and forth, and the vibration will push the air to produce sound.

Other components in the speaker element, such as the fixed core support plate 905, are used for damping to stabilize the vibration of the second magnetic element 903. There is also an air valve on the side wall, for example, a hole can be opened on the side or bottom of the speaker element to allow air to enter and exit, so that the sound generated by pushing the air can be output.

According to the above implementation method of the transducer element formed by using straight-line micro-line segment elements, Figures 10 and 11 show schematic diagrams of the first implementation example of the transducer element.

According to the schematic diagram of the embodiment of the transducer element shown in FIG10 , the transducer element is coated with a magnetically permeable shell 110, and a cavity is formed inside. The embodiment can be designed with multiple cavities. The cavity shown in this example is provided with a first magnetic element 111 and a second magnetic element 112 which can be implemented as magnets. In particular, the north pole (N pole) and the south pole (S pole) of the first magnetic element 111 and the second magnetic element 112 in this example are in the same direction, and a magnetic field with the same direction is also formed in the magnetically permeable shell 110. The first magnetic field direction 117 and the second magnetic field direction 118 indicated by arrow directions can be referred to in FIG11 .

Furthermore, a diaphragm 113 is provided in the cavity covered by the magnetic shell 110. The diaphragm 113 can be elastically connected to the magnetic shell 110 of the transducer element through the suspension. A linear micro-segment element 114 through which electric current can pass is provided on the diaphragm 113. FIG11 shows the current direction 119 of the electric current passing through a plurality of metal segments on the linear micro-segment element 114, which can interact with the first magnetic field direction 117 and the second magnetic field direction 118 formed by the first magnetic element 111 and the second magnetic element 112 in the magnetic shell 110, respectively, to generate a force driving the linear micro-segment element 114 to move in one direction, and drive the diaphragm 113 to move, forming a vibration direction 115 of up and down movement as shown in FIG11.

Figures 12 and 13 show schematic diagrams of a second embodiment of a transducer element formed using a straight-line micro-segment element.

The transducer element shown in FIG. 12 includes a magnetically permeable shell 120, in which a plurality of magnetic elements are arranged, such as the first magnetic element 121, the second magnetic element 122 and the third magnetic element 123 shown in the figure, and the magnetic field superposition effect is generated by designing the north pole (N) and south pole (S) directions of the plurality of magnetic elements. The magnetic field formed by the first magnetic element 121, the second magnetic element 122 and the third magnetic element 123 in this example can refer to the magnetic field direction 128 shown in FIG. 13.

A diaphragm 124 is also provided in the magnetic shell 120, which can also be elastically connected to the magnetic shell 120 through the suspension. A linear micro-segment element 125 is provided on the diaphragm 124, and the current direction of the current flowing through the metal segment on the linear micro-segment element 125 is as shown in the current direction 129 in FIG13. This current direction 129 interacts with the magnetic field direction 128 formed by the first magnetic element 121, the second magnetic element 122 and the third magnetic element 123, generating a force that drives the linear micro-segment element 125 on the diaphragm 124 to move, and the linear micro-segment element 125 drives the diaphragm 124 to vibrate, as shown in the vibration direction 127 in FIG13.

According to the embodiments of the transducer element shown in Figures 10 to 13 above, the miniaturized transducer element can be applied in an earphone device, because the linear micro-segment element (114, 125) in the transducer element drives the diaphragm (113, 124) to vibrate, thereby realizing one or more units in the earphone or hearing aid to output various audio frequencies.

In summary, the device of the transducer element formed by the linear micro-line segment element described in the above embodiment can achieve miniaturization and lightness, and can form multiple single-body loudspeaker devices in a specific space.

The above disclosed contents are only the preferred feasible embodiments of the present invention, and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the contents of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.

501: First diaphragm

502: Second diaphragm

50: Linear micro-segment element

503,504: Extension of conductive glue

Claims (18)

A device using a transducer element formed of a linear micro-segment, comprising: a device housing, with one or more cavities formed inside; a transducer element disposed in each cavity, disposed in the device housing, comprising: a linear micro-segment element, provided with a substrate, on which a plurality of metal segments with a consistent direction are made, with gaps between adjacent metal segments, and one or more electrical contacts for electrically connecting to a positive or negative power source at either end of the plurality of metal segments; one or more diaphragms, connected to the linear micro-segment element, the one or more diaphragms moving along with the linear micro-segment element; and At least one magnetic element is disposed on one side of the linear micro-segment element, and the at least one magnetic element forms a magnetic field passing through the linear micro-segment element. The at least one magnetic element is a magnet or a magnetic object that can form a stable magnetic force; Wherein, after the linear micro-segment element is connected to the power source and energized, a current direction is formed in the same direction of the multiple metal segments, which interacts with the magnetic field to drive the linear micro-segment element to move in one direction; Wherein a first magnetic element and a second magnetic element are disposed on both sides of the linear micro-segment element, and a magnetic force of mutual attraction or repulsion is formed between the first magnetic element and the second magnetic element; The first magnetic element and the second magnetic element disposed opposite to each other have one linear micro-segment element on one common side, or have linear micro-segment elements on both common sides, and the one or two linear micro-segment elements are disposed at the convergence point of the repulsive magnetic force formed between the first magnetic element and the second magnetic element, so that the repulsive magnetic force passes through the one or two linear micro-segment elements. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the one or more diaphragms are made of conductive material, or are provided with conductive lines, and the straight-line micro-segment elements are bonded with conductive glue. A device using a transducer element formed by straight-line micro-segments as described in claim 2, wherein the one or more diaphragms or the conductive lines connect the current generated by the power source to the multiple electrical contacts on the straight-line micro-segment element through the conductive glue. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the multiple electrical contacts at both ends of the multiple metal segments on the straight-line micro-segment element are connected to the power source through multiple flexible circuit boards. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the transducer element is coated with a magnetically conductive member made of a magnetically conductive material. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the substrate is made of silicon, ceramic, glass, sapphire, laser direct molding plastic, germanium wafer, gallium arsenide, indium phosphide, gallium nitride, silicon carbide, zinc selenide, glass fiber, epoxy resin, phenolic resin, polyimide, modified polyimide, liquid crystal polymer, dimaleimide-triazine (BT), Ajinomoto structural film (ABF), bakelite, plastic or modified polyimide. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the plurality of metal segments are mainly structured with silicon wafers, germanium wafers, gallium nitride, second-generation semiconductors, third-generation semiconductors, or are designed with a metal layer processed by a chemical vapor deposition process, wherein the thickness of the metal layer is 0.0001 to 10 microns and the ratio of line width to line spacing is greater than 0.3. A device as claimed in claim 1 that uses a transducer element formed by straight-line micro-segments, wherein the plurality of metal segments are designed with a printed circuit board, an IC substrate, a glass substrate as the main structure, or a metal layer processed by a modified semi-additive process (MSAP), a semi-additive process (SAP), a thick copper process, or a subtractive process, and the thickness of the metal layer is 0.1 to 80 microns and the ratio of line width to line spacing is greater than 0.3. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein a magnetically conductive material is disposed on the substrate of the straight-line micro-segment element. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein one or more electrode pads are formed at either end of the electrical contacts at both ends of the plurality of metal segments on the straight-line micro-segment element to electrically connect to the power source by bonding or welding wires. As described in claim 10, a device using a transducer element formed by straight-line micro-line segments, wherein one or more electrode regions are provided on the shell of the transducer element to provide the bonding wire or welding wire to connect to the power source. As described in claim 1, a device using a transducer element formed by straight-line micro-segments, wherein a magnetic conductive element is provided between the first magnetic element and the second magnetic element to guide the mutually repulsive magnetic force through one or two straight-line micro-segment elements. A device using a transducer element formed by straight micro-line segments as described in claim 12, wherein the device housing covering the transducer element serves as a magnetically conductive wall for guiding the repulsive magnetic force. A device using a transducer element formed of a straight-line micro-segment as described in claim 1, wherein the movement of the straight-line micro-segment element is driven by adjusting the current supplied to the straight-line micro-segment element to interact with the magnetic field. As described in claim 14, a device using a transducer element formed by linear micro-segments, wherein an electric current carrying information passes through the linear micro-segment element, driving the frequency and intensity of the linear micro-segment element's back-and-forth movement. A device using a transducer element formed by straight-line micro-segments as described in claim 1, wherein the diaphragm is a magnetically conductive member or a film made of a conductive material. As described in claim 16, a device using a transducer element formed by straight-line micro-line segments, wherein the diaphragm made of the conductive material is used to electrically connect to the positive or negative electrode of the power source. A device using a transducer element formed by linear micro-segments as described in any one of claims 1 to 17, wherein each cavity in the outer shell of the device is provided with one or more outlets for outputting shock waves generated by one or more diaphragms in the one or more cavities moving along with the linear micro-segment element.

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