TWI713243B - Actuating breathable material structure - Google Patents

Abstract

An actuating breathable material structure is disclosed and comprises a supporting main body, plural actuating breathable units and plural micro processing chips. The supporting main body is made of a supporting matrix. The plural actuating breathable units and the plural micro processing chips are compositing and forms into one piece with the supporting matrix. By controlling the actuation of the plural actuating breathable units through the plural micro processing chips, a breathing effect resulting from transportation of gas in a specific direction is performed.

Description

Actuation of breathable material structure

The present invention relates to an actuated gas-permeable material structure, in particular to an actuated gas-permeable material structure with gas transmission in a specific direction.

For some products that require ventilation and ventilation, such as some products (such as notebook computers) that wear clothes or generate heat sources that require heat dissipation, how to make these products have ventilation and ventilation is a very important part of the present invention. Therefore, how The development of an actuated breathable material structure applied to such products, so that the actuated breathable material structure has a specific direction of gas transmission, is the main research and development subject of the present invention.

The purpose of this case is to provide an actuating and ventilating material structure in which a miniaturized actuating and venting unit is combined with a supporting base material of a supporting body to form a uniform motion venting material structure, which can be applied to products that require ventilation and ventilation. .

Another purpose of this case is to use a plurality of actuating and ventilating units to be compounded in the supporting substrate to form an integral body with the supporting substrate, and a plurality of the actuating and ventilating units are used to drive and operate to form the venting of the supporting body for gas transmission in a specific direction. effect.

To achieve the above objective, the present application provides an actuated breathable material structure, comprising: a supporting body composed of a supporting substrate; a plurality of actuating breathable units; and a plurality of micro-processing chips; a plurality of the actuating breathable units, and A plurality of the micro-processing chips are compounded in the supporting substrate to form a single body with the supporting substrate, and a plurality of the actuating and venting units are controlled by a plurality of the micro-processing chips to drive and operate the supporting body to form gas transmission in a specific direction Ventilation function.

Some typical embodiments embodying the features and advantages of this case will be described in detail in the following description. It should be understood that the case can have various changes in different aspects, which do not depart from the scope of the case, and the descriptions and diagrams therein are essentially for illustrative purposes, rather than being constructed to limit the case.

Please refer to Figures 1 and 2. This case provides an actuating breathable material structure 10, including a supporting body 1, a plurality of actuating breathable units 2, a plurality of micro-processing chips 3, a plurality of sensors 4, and a plurality of power supply units 5. Wherein, the supporting body 1 is composed of a supporting base material 11, and a plurality of actuating and venting units 2 are compounded in the supporting base material 11 of the supporting body 1 to form an integral body with the supporting base material 11, and driven by a plurality of actuating and venting units 2 The operation constitutes the gas transmission effect of the supporting body 1 in a specific direction. A plurality of micro-processing chips 3 are embedded on the surface of the supporting substrate 11 of the supporting body 1 to control the driving operation of the plurality of actuating and venting units 2. A plurality of sensors 4 are embedded on the surface of the supporting substrate 11 of the supporting body 1, thereby being electrically connected to the plurality of micro-processing chips 3, and the detection data of the plurality of sensors 4 are connected to the plurality of micro-processing chips 3 for transmission. A sensor 4 detects the humidity and temperature outside the supporting substrate 11 of the supporting body 1, and provides detection data to a plurality of micro-processing chips 3, and the plurality of micro-processing chips 3 control the driving operation of a plurality of actuating and venting units 2 Perform the gas transmission of the supporting body 1 in a specific direction. Furthermore, each of the aforementioned micro-processing chips 3 includes a data communication element 31 for receiving detection data from the sensor 4, and transmitting and sending the detection data to an external receiving device. Thereby, the external receiving device can display the detection data of the sensor 4. In this embodiment, the external receiving device is a mobile communication connection device, but it is not limited to this. A plurality of power supply units 5 are embedded on the surface of the supporting substrate 11 of the supporting body 1 to output electric energy to be supplied by the connecting line 6 to the driving operation of the plurality of actuating and venting units 2 and the plurality of micro-processing chips 3. In the embodiment of the present case, the power supply unit 5 may be an energy absorbing electric board for converting light energy into electric energy output, but it is not limited to this. In the embodiment of this case, the power supply unit 5 may also be a graphene battery, but it is not limited to this.

In the embodiment of this case, the supporting substrate 11 may be a raw material, where the raw material refers to a substance that is naturally generated and not yet processed, or the supporting substrate 11 may be a material, where the material refers to the raw material produced after processing. Of course, the materials can be organic materials or organic materials classified from a chemical point of view, or metal materials, polymer materials, ceramic materials or composite materials classified from an engineering point of view, or building materials, electronic materials, and aviation materials classified from an application point of view Materials, automotive materials, energy materials and biomedical materials, but not limited to this.

Please refer to Fig. 3A, the above-mentioned actuated ventilation unit 2 consists of an inlet layer 21, a flow channel layer 22, a resonance layer 23, a chamber layer 24, an actuation layer 25, an outlet layer 26 and a plurality of valves 27 in sequence It is composed of a stacked structure and is manufactured through a micro-electromechanical process, and each fabric layer of the actuation venting unit 2 is made of micron structural materials. The size of the actuation venting unit 2 is 1 micron to 999 microns, or more It is made of a tiny nanostructure material, that is, the size of the actuating vent unit 2 is from 1 nanometer to 999 nanometers, but not limited to this.

The aforementioned entrance layer 21 has an entrance 21 a formed at the center of the entrance layer 21. The above-mentioned flow channel layer 22 is stacked on the inlet layer 21 and has a channel 22a. The channel 22a is provided at a position corresponding to the inlet 21a of the inlet layer 21 and communicates with the inlet 21a. The above-mentioned resonance layer 23 is stacked on the flow channel layer 22 and has a central hole 23a, a movable portion 23b and a fixed portion 23c; wherein the central hole 23a is arranged at the center of the resonance layer 23, corresponding to the flow channel layer 22 The channel 22a is arranged at a position and communicates with the channel 22a; and the movable portion 23b is arranged on the periphery of the central hole 23a without contacting the flow channel layer 22 to form a flexible structure; and the fixed portion 23c is arranged at The part in contact with the structure of the runner layer 22 is connected. The aforementioned cavity layer 24 is stacked on the resonance layer 23, and the center is hollowed out to form a resonance cavity 24a. In the illustration, the cavity layer 24 is stacked on the fixed portion 23c of the resonance layer 23, and the resonance The cavity 24a is arranged corresponding to the position of the center hole 23a of the resonance layer 23 and communicates with the center hole 23a. The above-mentioned actuation layer 25 is stacked on the chamber layer 24. As shown in FIG. 3B, the actuation layer 25 is a hollow suspension structure and has a vibration area 25a, an outer edge area 25b, an actuating body 25c, A plurality of connection areas 25d and a plurality of gaps 25e; wherein the vibration area 25a is connected to the outer edge area 25b through the plurality of connection areas 25d, so that the plurality of connection areas 25d support the vibration area 25a, so that the vibration area 25a can be elastically displaced; in this embodiment Wherein, the vibration area 25a has a square contour, but is not limited to this; and a plurality of gaps 25e are between the vibration area 25a and the outer edge area 25b, which can be used for gas flow; in other embodiments, the vibration area 25a The arrangement, implementation and quantity of the outer edge area 25b, the plurality of connecting areas 25d and the plurality of gaps 25e are not limited to this, and can be changed according to actual conditions; the actuating body 25c is arranged on a surface of the vibration area 25a Above, the deformation-linked vibration area 25a is driven by the voltage controlled and supplied by the micro-processing chip 3 via the connection line 6 to generate a reciprocating vibration displacement. In the embodiment of this case, the actuating body 25c has a circular contour, but it is not limited to this. The aforementioned outlet layer 26 is stacked on the outer edge region 25b of the actuation layer 25 and covers the actuation layer 25, and an outlet chamber 26a is formed between the outlet layer 26 and the actuation layer 25, and an outlet 26b is provided. , The outlet 26b is for communicating with the outlet chamber 26a, and the outlet chamber 26a is communicated with the resonance chamber 24a of the chamber layer 24 through the plurality of gaps 25e of the actuation layer 25. The above-mentioned plural valves 27 are respectively arranged in the outlet 26b of the outlet layer 26 and the inlet 21a of the inlet layer 21 to control the communication state of the inlet 21a and the outlet 26b.

Please refer to FIG. 5A. The valve 27 described above includes a retaining member 271, a sealing member 272, and a displacement member 273; wherein the displacement member 273 is disposed between the retaining member 271 and the sealing member 272. The retaining member 271, the sealing member 272, and the displacement member 273 respectively have a plurality of through holes 271a, 272a, 273a, and the plurality of through holes 271a of the retaining member 271 and the plurality of through holes 273a of the displacement member 273 are aligned with each other and sealed The plurality of through holes 272a of the member 272 and the plurality of through holes 271a of the holder 271 are misaligned; the displacement member 273 is a charged material, the holder 271 is a bipolar conductive material, and the displacement member 273 and the holder 271 The polarity can be controlled by the micro-processing chip 3 (as shown in Fig. 2), so that the displacement member 273 and the holding member 271 maintain the same polarity and approach the sealing member 272 to close the valve 27; please refer to page 5B again In the figure, the displacement member 273 is a charged material, and the holding member 271 is a bipolar conductive material. The polarities of the displacement member 273 and the holding member 271 can be controlled by the micro-processing chip 3 (as shown in Figure 2) to make The displacement member 273 and the holding member 271 maintain different polarities and approach the holding member 271 to constitute the opening of the valve 27. By adjusting the polarity of the holding member 271, the displacement member 273 is moved to form the open and closed state of the valve 27. In addition, the displacement member 273 of the valve 27 mentioned above can also be a magnetic material, and the holding member 271 is a magnetic material with controlled polarity change. When the displacement member 273 and the holding member 271 maintain the same polarity, the displacement member 273 faces The sealing member 272 is close to close the valve 27; on the contrary, when the holding member 271 changes its polarity to a different polarity from the displacement member 273, the displacement member 273 will approach the holding member 271 to form the valve 27 to open. The magnetism of the holding member 271 is adjusted to move the displacement member 273 to adjust the opening and closing state of the valve 27. The holder 271 can be controlled by the micro-processing chip 3 (as shown in FIG. 2) to control its magnetic pole polarity.

Please refer to Figure 3C to Figure 3D. When the actuating body 25c is driven by the supply voltage controlled by the micro-processing chip 3 by the connection line 6, the deformation-linked vibration area 25a reciprocally vibrates in a direction perpendicular to the surface of the vibration area 25a. As shown in Figure 3C, when the actuating body 25c is driven by the micro-processing chip 3 by the supply voltage controlled by the connection line 6 to produce deformation and move in a direction away from the inlet layer 21, and the valve 27 is affected by the micro-processing chip 3 (such as the second (Shown in the figure) when the control is turned on, the vibration zone 25a is vibrated by the deformation of the actuating body 25c to move away from the entrance layer 21, and drives the movable part 23b of the resonance layer 23 to also move away from the entrance layer 21, causing the cavity The volume of the resonance chamber 24a of the chamber layer 24 increases to generate a suction force, allowing the gas to be sucked in from the inlet 21a on the inlet layer 21, pass through the valve 27 of the inlet layer 21, and collect into the channel 22a of the flow channel layer 22, and It passes through the central hole 23a of the resonance layer 23 and is collected into the resonance chamber 24a for temporary storage. Then, as shown in Fig. 3D, when the actuating body 25c is driven by the supply voltage controlled by the micro-processing chip 3 to deform and move toward the entrance layer 21, the vibrating area 25a is vibrated by the deformation of the actuating body 25c to move toward Displacement in the direction close to the inlet layer 21, at this time the vibration zone 25a of the actuation layer 25 compresses the volume of the resonance chamber 24a, allowing the gas in the resonance chamber 24a to be squeezed to both sides and flow into the outflow chamber through a plurality of gaps 25e As shown in Figure 3C, when the actuating body 25c is deformed by the output power of the power supply unit 5 by the voltage supplied by the connection line 6, and moves away from the entrance layer 21, the vibrating area 25a is actuated The body 25c deforms and vibrates and moves away from the inlet layer 21, causing the gas in the outflow chamber 26a to pass through the valve 27 of the outlet layer 26, and to be discharged from the outlet 26b of the outlet layer 26 to the outside of the outlet layer 26 to form the supporting body 1 The ventilation effect of gas transmission in a specific direction. In this way, repeat the actuation operations as shown in Figs. 3C to 3D, that is, the gas can be continuously guided from the inlet 21a to the outlet 26b and discharged under pressure, so as to realize the gas transmission.

In the embodiment of this case, the reciprocating vibration frequency of the resonance layer 23 can be the same as the vibration frequency of the vibration area 25a of the actuation layer 25, that is, both can be upward or downward at the same time, and can be changed according to the actual implementation situation. , Is not limited to the action mode shown in the embodiment of this case. The pressure gradient is generated in the flow channel of the actuation venting unit 2 of the embodiment of the present case, so that the gas flows at high speed, and the gas is transmitted from the inlet 21a to the outlet 26b through the impedance difference in the direction of the flow channel, and there is pressure at the outlet 26b. It still has the ability to continuously push out gas and achieve the effect of silence.

Please refer to Figures 4A and 4C. In the embodiment of this case, a plurality of actuating and ventilating units 2 may be used in this case to be combined in the supporting substrate 11 of the supporting body 1 to form a single body with the supporting substrate 11, and a plurality of actuating and ventilating units The unit 2 can adjust the total gas transmission volume and the gas transmission speed outputted by actuating the gas-permeable material structure 10 according to a specific arrangement. As shown in FIG. 4A, in the embodiment, a plurality of actuated ventilation units 2 can share an inlet layer 21, a flow channel layer 22, a resonance layer 23, a chamber layer 24, an actuation layer 25, and an outlet layer. 26, and the two sets of actuation venting units 2 share an inlet 21a under an inlet layer 21 structure, and are arranged in series through the micro-electromechanical manufacturing process, so that the plurality of actuation venting units 2 are arranged in series, thereby Increase the total gas transmission volume output by actuating the gas permeable material structure 10. As shown in Figure 4B again, in the embodiment, a plurality of actuation venting units 2 are stacked with two actuating venting units 2 through a micro-electromechanical process, and a common cavity is provided between the two actuating venting units 2 The chamber 28 is connected, so that a plurality of actuating and gas-permeable units 2 are arranged in parallel, so as to increase the gas transmission speed output by the actuated gas-permeable material structure 10. As shown in Figure 4C, a plurality of actuated venting units 2 use a set of actuated venting units 2 arranged in series with another set of actuated venting units 2 arranged in series, and are arranged in two sets in series. A common chamber 28 is provided between the movable gas-permeable units 2 for communication, so that a series-parallel arrangement is achieved through the MEMS process stacking arrangement, so as to simultaneously increase the total gas transmission volume and gas transmission speed output by the entire actuator gas-permeable material structure 10 . In the embodiment of the present case, a plurality of actuating and venting units 2 can be connected to the driving circuit to simultaneously actuate the transmission gas, which can meet the gas transmission demand of large flow. In addition, each plurality of actuated venting units 2 can also be individually controlled to actuate or stop. For example, the actuated venting unit 2 is activated and the other actuated venting unit 2 is stopped. It can also be operated alternately, but it is not limited to this. , In order to achieve the required total gas transmission volume, and achieve the effect of greatly reducing power consumption.

It is worth noting that, in the embodiment of this case, a plurality of actuated ventilation units 2 can be uniformly distributed and compounded in the supporting substrate 11 of the supporting body 1 to form an integral body with the supporting substrate 11. That is, a plurality of actuated air-permeable units 2 are evenly distributed in the supporting substrate 11 to be integrated with the supporting substrate 11. Alternatively, a plurality of actuating and venting units 2 can also be heterogeneously distributed and compounded in the supporting substrate 11 of the supporting body 1 to form an integral body with the supporting substrate 11. That is, a plurality of actuated air-permeable units 2 are compounded in a specific area of the supporting substrate 11 to be integrated with the supporting substrate 11. The manner in which the plurality of actuated ventilation units 2 are distributed in the supporting substrate 11 can be changed according to design requirements, and is not limited thereto.

It is worth noting that in the embodiment of the present case, as mentioned above, the supporting substrate 11 of the supporting body 1 can be a variety of raw materials or materials, and a plurality of actuating and ventilating units 2 are to be combined on the supporting substrate of the supporting body 1 When the structure of the air-permeable material with coherent motion is formed in 11, there are multiple composite methods for different raw materials or materials. For example, when the supporting substrate 11 is a metal material, a ceramic material, etc., a plurality of actuating air-permeable units 2 can be mixed to form The method in the support substrate 11; for example, when the support substrate 11 is made of fibers, textiles, etc., a plurality of actuation ventilation units 2 can be woven into the support substrate 11; for example, when the support substrate 11 As a polymer material, a method of implanting a plurality of actuating air-permeable units 2 into the supporting substrate 11 can be adopted. The manner in which the plurality of actuating and ventilating units 2 are compounded in the supporting substrate 11 of the supporting body 1 can be changed according to design requirements, and is not limited thereto.

It can be seen from the above description that the actuated breathable material structure 10 of the present case is used in specific implementation applications. When implemented as a textile material for wearing clothes, a plurality of actuated breathable units 2 are compounded on the supporting substrate 11 of the supporting body 1 (such as: The method in textile material) is to woven a plurality of actuating and venting units 2 into a supporting substrate 11 (such as textile material), and a plurality of micro-processing chips 3, a plurality of sensors 4, and a plurality of power supply units 5 are also The braided composition is formed in the supporting substrate 11 (such as textile material) to form the uniformly moving air-permeable material structure 10. A plurality of sensors 4 can adjust the wearer's body surface temperature according to the external temperature. When the body surface temperature is overheated, a plurality of microprocessor chips 3 can control a plurality of actuation and ventilation units 2 to drive operation, and a plurality of actuation and ventilation units 2 drive operation. The air permeability of the supporting body 1 for gas transmission in a specific direction is formed to adjust the temperature of the wearer's body surface. This is implemented in the textile material of the clothing to achieve a smart clothing. Or, when implementing the shell part (such as the shell of a notebook computer) as a product that generates heat source and needs to dissipate heat, a plurality of actuating ventilation units 2 are combined on the supporting substrate 11 of the supporting body 1 (such as: the notebook computer The method in the shell) is to mix a plurality of actuating and venting units 2 into a supporting substrate 11 (such as the shell of a notebook computer), and a plurality of microprocessor chips 3, a plurality of sensors 4, and a plurality of The power supply unit 5 is also mixed in the supporting substrate 11 (such as the casing of a notebook computer) to form the cooperating air-permeable material structure 10. A plurality of sensors 4 can adjust the ventilation according to the internal temperature of the notebook computer (inside the case). When the internal temperature of the notebook computer is overheated, a plurality of microprocessor chips 3 can control a plurality of actuation and ventilation units 2 to drive operation. Actuating the venting unit 2 to drive operation constitutes the venting function of the supporting body 1 for gas transmission in a specific direction, so as to adjust the heat dissipation function of the notebook computer to realize intelligent heat dissipation.

In summary, the actuation venting material structure provided in this case combines a miniaturized actuation venting unit into a supporting base material of a supporting body to form a uniform motion venting material structure for applications that require ventilation and ventilation. In terms of products, it is extremely industrially usable.

This case can be modified in many ways by those who are familiar with this technology, but none of them deviates from the protection of the scope of the patent application.

10: Actuation breathable material structure 1: Support body 11: Support base material 2: Actuation breathable unit 21: Inlet layer 21a: Inlet 22: Runner layer 22a: Channel 23: Resonant layer 23a: Central hole 23b: Movable part 23c : Fixed part 24: Chamber layer 24a: Resonance chamber 25: Actuation layer 25a: Vibration area 25b: Outer edge area 25c: Actuation body 25d: Connection area 25e: Gap 26: Outlet layer 26a: Outflow chamber 26b : Outlet 27: Valve 271: Holder 272: Seal 273: Displacement member 271a, 272a, 273a: Through hole 28: Common chamber 3: Microprocessing chip 31: Data communication element 4: Sensor 5: Power supply unit 6: Connection line

Figure 1 is a schematic diagram of the structure of the actuated breathable material. Figure 2 is a schematic cross-sectional view of the actuated breathable material structure in Figure 1. Figure 3A is a schematic cross-sectional structure diagram of the actuating vent unit of the present case. Figure 3B is a schematic diagram of the actuating layer of the actuating vent unit of this case. Figures 3C to 3D are schematic diagrams of the actuation of the venting unit in Figure 3A. Figure 4A is a cross-sectional schematic diagram of a series structure of a plurality of actuating and venting units in this case. Figure 4B is a cross-sectional schematic diagram of the parallel structure of a plurality of actuating and venting units. Figure 4C is a cross-sectional schematic diagram of the series-parallel architecture of a plurality of actuation venting units in this case. Figures 5A to 5B are schematic diagrams of the valve actuation of the actuated vent unit of the present invention.

10: Actuation of breathable material structure

1: Support body

11: Support substrate

2: actuate the ventilation unit

26b: Exit

27: Valve

3: Micro-processing chip

31: Data Communication Components

4: sensor

5: Power supply unit

6: Connection line

Claims (11)

An actuated gas-permeable material structure, comprising: a supporting body composed of a supporting substrate; a plurality of actuating gas-permeable units; and a plurality of micro-processing chips; a plurality of the actuating gas-permeable units and a plurality of the micro-processing chips composite The supporting substrate is integrated with the supporting substrate, and the supporting substrate is embedded with a plurality of sensors for connecting with the plurality of micro-processing chips, and the detection data of the plurality of sensors is connected with the plurality of micro-processing chips. The processing wafers are transmitted, and a plurality of the sensors detect the humidity and temperature outside the supporting substrate, and provide them to the plurality of micro-processing wafers to control the driving operation of a plurality of the actuating and venting units to perform the gas transmission in a specific direction of the supporting body The ventilation effect. For example, the actuation gas-permeable material structure described in the first item of the scope of patent application, wherein the micro-processing chip includes a data communication element, and the data communication element receives detection data from a plurality of sensors and transmits it to an external receiving device, The external receiving device displays the detection data. According to the actuation breathable material structure described in item 2 of the scope of patent application, the external receiving device is a mobile communication connection device. The actuated breathable material structure described in claim 1, wherein each actuated breathable unit includes: an inlet layer; a flow channel layer stacked on the inlet layer; a resonance layer stacked on the inlet layer On the runner layer; a chamber layer, stacked on the resonance layer; a motion layer, stacked on the cavity layer; An outlet layer stacked on the actuation layer; and a plurality of valves; wherein the inlet layer, the flow channel layer, the resonance layer, the chamber layer, the actuation layer and the outlet layer are stacked separately, and A plurality of the valves are respectively arranged on the inlet layer and the outlet layer. The actuated air-permeable material structure described in item 1 of the scope of patent application, wherein each actuated air-permeable unit includes: an inlet layer having an inlet; a flow channel layer stacked on the inlet layer and having a channel , For corresponding communication with the entrance; a resonance layer, stacked on the flow channel layer, and has a central hole corresponding to the channel; a cavity layer, stacked on the resonance layer, and has a resonance cavity , Corresponding to the central hole; the actuating layer, stacked on the chamber layer, including an outer edge area, a vibration area and an actuating body, the actuating body is arranged on a surface of the vibration area to receive voltage Driven and deformed to link the vibrating area to produce reciprocating vibrational displacement; an outlet layer, stacked on the outer edge area of the actuating layer and covering the actuating body, and forming an outlet cavity between the actuating body The chamber has an outlet, which communicates with the resonance chamber; and a plurality of valves are respectively arranged at the positions of the inlet and the outlet for controlling the communication between the inlet and the outlet; wherein the actuating body is controlled Drive to generate reciprocating vibration displacement to guide the gas in the resonance chamber, and a plurality of the valves are controlled to open the connection between the inlet and the outlet, the gas is The inlet is introduced through the ventilating chamber and then exported from the outlet to form a gas-permeable effect for the supporting body to conduct gas in a specific direction. Like the actuated breathable material structure described in item 1 of the scope of patent application, the actuated breathable material structure can form at least one wearable device. As described in item 6 of the scope of patent application, the wearable device can be at least one of a smart phone, a smart bracelet, a smart watch, a hand-worn blood pressure meter, a hand-worn blood glucose meter, and a smart clothing. Like the actuated breathable material structure described in item 1 of the scope of patent application, the actuated breathable material structure can form at least one portable device. Such as the actuation breathable material structure described in item 8 of the scope of patent application, the portable device can be at least one of a keyboard, a notebook computer, and a display device. Like the actuated breathable material structure described in item 1 of the scope of patent application, the actuated breathable material structure can form at least a daily product. Such as the actuating breathable material structure described in item 10 of the scope of patent application, the daily necessities can be masks, strollers, brooches, buttons, earrings, belts, necklaces, sports shoes, glasses, smart bras, backpacks, pants, and clothes. one.

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