TW201716028A - Electronic device for disposing on surface of organic body - Google Patents

Abstract

An electronic device, for placement on an organic surface, includes a conductive sheet and a communication module. The conductive sheet has a corresponding first surface and second surface, wherein the second surface faces the organic surface. The communication module is disposed on the first surface, wherein surface area of the first surface is greater than surface area of the projection of the communication module onto the first surface. The communication module includes a cover body, a first radiating unit, and a circuit board. An accommodating space is formed in the cover body and has a first section and a second section, wherein the first radiating unit is disposed in the first section. The circuit board is disposed in the second section and has a signal processor unit that is electrically connected with the first radiating unit, wherein the signal processor unit drives the first radiating unit to form a first frequency mode.

Description

Electronic device disposed on a biological watch

The present invention relates to an electronic device; in particular, the present invention relates to an electronic device for providing a signal radiating unit on a living body watch.

With the evolution of technology, the technology of human beings in wireless communication has continued to advance and develop rapidly. The development direction of many electronic devices has tended to reduce the design of products. Due to the rapid development of wireless communication, the electronic devices of various detectors are gradually using wireless communication methods to enable the detector to communicate with various other electronic products, so that the detector can be easily attached to various occasions. On the object.

In general, a detector attached to a human body surface for detecting a human body parameter for a long time can transmit information to the host computer for corresponding analysis and processing by a wireless communication system. The antenna used in such devices has a high dielectric constant and loss of material due to proximity to the human body, resulting in poor antenna characteristics, resulting in a short communication distance with the host or a large output power of the communication system. To compensate for the lack of radiation power. However, using a larger output power will increase the power consumption of the circuit, making the device operate for a shorter period of time, which is less convenient to use.

It is an object of the present invention to provide an electronic device that is disposed on a living body table and has a function of preventing the biological body from affecting signal transmission. Another object of the present invention is to provide an electronic device in which the structure of the conductive sheet can be improved. Signal transmission efficiency; another object of the present invention is to provide an electronic device whose slot structure can enhance the signal transmission function of the communication module; and another object of the present invention is to provide an electronic device that can use lower power Output to extend usage time.

The present invention provides an electronic device for being disposed on a biological body, comprising a conductive sheet having opposite first and second sides, wherein the second surface faces the living body; and a communication module disposed at the On one side, the area of the first side is larger than the area projected by the communication module on the first side, and the communication module comprises: a housing forming an accommodating space, and the accommodating space has a first area and a second area respectively; the first radiation The unit is disposed in the first area; and the circuit board is disposed in the second area and has a signal processing unit electrically connected to the first radiating unit; wherein the signal processing unit drives the first radiating unit to form a frequency band mode.

1‧‧‧Electrical sheet

1A‧‧‧ first side

1B‧‧‧ second side

2‧‧‧Communication module

3‧‧‧Shell

3A‧‧‧First District

3B‧‧‧Second District

3C‧‧‧ inside

4A‧‧‧First Radiation Unit

4B‧‧‧second radiating element

5‧‧‧Circuit board

6‧‧‧Signal Processing Unit

7‧‧‧Detection unit

8‧‧‧First adhesive layer

9‧‧‧through hole

10‧‧‧Electronic devices

A‧‧‧ accommodating space

L‧‧‧ length

X‧‧‧ first paragraph

Y‧‧‧second paragraph

Third paragraph of Z‧‧

1 is a cross-sectional view of the electronic device of FIG. 1; FIG. 3A is a top view of the electronic device of FIG. 1; FIG. 3B is a schematic view of another embodiment of FIG. 3 is a schematic diagram of a frequency-efficiency of the embodiment of FIGS. 3A and 4; FIG. 6 is a top view of a user-centered signal intensity distribution; and FIG. 7 is a user A schematic diagram of the intensity distribution before and after the signal.

The present invention provides an electronic device. In a preferred embodiment, the electronic device of the present invention can be applied to a living body table as a data that can detect and generate the biological related information, such as a blood glucose detector, a pulse detector, and a body temperature. Electronic products such as detectors; but not limited to this. In order to clearly describe the features of the electronic device of the present invention, the electronic device of the present invention will be described below as a blood glucose detector.

FIG. 1 is an exemplary diagram of an electronic device 10 of the present invention. As shown in FIG. 1 , in the embodiment, the electronic device 10 includes at least a conductive sheet 1 and a communication module 2 . The conductive sheet 1 has a first surface 1A and a second surface 1B opposite thereto, wherein the second surface 1B faces a surface of a living body. As shown in FIG. 1 , the communication module 2 is disposed on the first surface 1A of the conductive sheet 1 , and the communication module 2 has at least a housing 3 , a first radiating unit 4A and a circuit board 5 .

Figure 2 is an embodiment of the cross-sectional view of Figure 1. As shown in FIGS. 1 and 2, in the present embodiment, the housing 3 is attached to the first surface 1A of the conductive sheet 1 by the first adhesive layer 8; however, it is not limited thereto, and in other different embodiments. The housing 3 of the communication module 2 may be disposed on the conductive sheet 1 in other manners. As shown in FIGS. 1 and 2, in the present embodiment, the area of the first surface 1A of the conductive sheet 1 is larger than the area projected by the communication module 2 on the first surface 1A. In addition, the range in which the communication module 2 is projected on the first surface 1A falls completely into the first surface 1A. For example, the area of the first surface 1A of the conductive sheet 1 may be about 42 mm x 57.6 mm, and the area projected by the communication module 2 on the first surface 1A may be about 22 mm x 37.6 mm; In other different embodiments, the size of the electronic device 10 can be adjusted according to design requirements. Further, the thickness of the conductive sheet 1 is preferably about 0.018 mm; however, it is not limited thereto. In addition, as shown in FIG. 1 and FIG. 2, in the present embodiment, the housing 3 has an accommodating space A, wherein the first radiating unit 4A and the circuit board 5 are disposed in the accommodating space A. In terms of the dimensional specifications exemplified above, the height of the communication module 2 can be approximately 4.8 mm. In this case, the housing space 3 has a thickness of 15.6 mm, and the accommodation space A has a size of 35.6 mm x 20 mm x 2.8 mm.

3A is a top view of FIG. 1. As shown in FIGS. 2 and 3A, the accommodating space A in the casing 3 may have a first zone 3A and a second zone 3B, respectively. In the present embodiment, the first radiating element 4A is disposed in the first region 3A, and the circuit board 5 is disposed in the second region 3B. The circuit board 5 has a signal processing unit 6, wherein the signal processing unit 6 is electrically connected to the first radiating unit 4A. The signal processing unit 6 can drive the first radiating element 4A to form a band mode. In an embodiment, the electronic device 10 has the function of Bluetooth communication, so in this case, the first radiating unit 4A can be a radiator of a Bluetooth antenna, which can be in the frequency range of 2.4 GHz to 2.485 GHz under the rules of the Bluetooth protocol. Working between. In the present embodiment, the length L of the first radiating element 4A is preferably about one quarter of the mode wavelength of the band. However, the electronic device 10 is not limited to the technology that can only be applied to the Bluetooth. In other different embodiments, the electronic device 10 can also adopt other types/specifications of antennas and communication protocols. For example, the electronic device 10 can also be a wireless RF. A passive antenna device that recognizes (Radio Frequency Identification, RFID for short).

As shown in FIGS. 2 and 3A, in the present embodiment, the electronic device 10 is exemplified as a blood glucose meter for periodically monitoring a blood sugar index in blood. In this case, the electronic device 10 may further include a detecting unit 7 for detecting blood sugar related information. Specifically, the conductive sheet 1 forms a through hole 9 with respect to the projection range of the detecting unit 7 thereon, and the through hole 9 penetrates from the conductive sheet 1 to the bottom of the circuit board 5. As shown in FIG. 2, through the through hole 9, the detecting unit 7 can extend from the inside of the casing 3 from the circuit board 5 and protrude from the surface of the second surface 1B of the conductive sheet 1. In the present embodiment, since the electronic device 10 is exemplified as a blood glucose meter, the detecting unit 7 is preferably a detecting needle for piercing the surface of the human body to detect the blood sugar of the human body, and can be installed when the detecting needle is installed. (not shown), when installed, it will inject a hollow needle tube together with the detection needle into the human body, and then the needle tube will withdraw from the human body. One end of the detection needle is left in the human body, and the other end of the detection needle is worn. The through via 9 is coupled to the circuit board 5. At this time, the signal processing unit 6 of the circuit board 5 can generate a detection information according to the information collected in the environment (the human body) in which the detecting unit 7 is located, and according to the The detection information drives the first radiating element 4A to form a one-band mode.

As shown in FIGS. 2 and 3A, when the first radiating element 4A is driven to receive/transmit signals in the band mode (for example, the band of Bluetooth), the signal quality of the first radiating element 4A is affected by the surrounding metal objects ( Or an easily conductive object). Therefore, in order to reduce the negative influence on the first radiating element 4A, in the embodiment, the housing 3 of the electronic device 10 is preferably made of a non-conductive or non-metal material, for example, a material such as plastic or other colloid. However, when the electronic device 10 is attached to a surface of a living body (for example, a human body surface), the signal generated by the first radiating element 4A is easily deteriorated by the influence of the conductive property of the living body. Therefore, in order to prevent or reduce the influence of the biological body on the signal quality of the first radiating element 4A, the conductive sheet 1 is disposed between the first radiating element 4A and the living body. Specifically, in the embodiment, the conductive sheet body 1 is preferably made of a metal material, and the metal sheet material can block and/or reflect the advantages of the signal, and the conductive sheet body 1 can prevent the first radiation unit 4A from being generated. The signal is affected by neighboring organisms. At the same time, the signal reflected by the conductive sheet 1 in the direction of the first radiating element 4A is advantageous for increasing the intensity, distance and distribution range of signal transmission/reception.

As shown in FIGS. 2 and 3A, in order to reduce the negative influence of the first radiating element 4A on the conductive sheet 1 of the metal material when the signal is generated, in the present embodiment, the casing 3 completely surrounds the periphery of the first radiating element 4A. The accommodating space A in which the first radiating element 4A is located and the conductive sheet body 1 are isolated. Specifically, the housing 3 is at least surrounded by a surface of the first radiating element 4A facing the conductive sheet 1 to isolate the first radiating element 4A and the conductive sheet 1. In addition, as shown in FIG. 2, by attaching the first radiating element 4A to the inner surface 3C of the casing 3 facing the conductive sheet 1, the first radiating element 4A and the living body and the conductive sheet 1 can be made The distance is increased to further reduce the influence of the first radiating element 4A on the living body and/or the conductive sheet 1 to help improve the quality of the transmission/reception of the signal.

As shown in FIGS. 2 and 3A, a first can be disposed between the housing 3 and the conductive sheet 1 The adhesive layer 8, the first adhesive layer 8 is used for attaching the housing 3 to the conductive sheet 1, and the first adhesive layer 8 also has the function of isolating the housing 3 from the conductive sheet 1, which can strengthen the insulation. The first radiating element 4A and the conductive sheet body 1. In this embodiment, the first adhesive layer 8 may be formed of a light-solidifying, thermosetting, or the like; however, it is not limited thereto.

Figure 3B is another embodiment of Figure 3A. As shown in FIG. 3B, a side of the conductive sheet 1 facing the living body (that is, one side of the conductive sheet 1 facing away from the housing 3) is preferably provided with a plastic layer 11 for structural support of the conductive sheet 1, and The entire electronic device 10 can be attached to the surface of the living body by the second adhesive layer 12 (that is, one side of the second adhesive layer 12 is attached to the plastic layer 11 facing away from the communication module 2, The other side of the second adhesive layer 12 is attached to the surface of the living body).

Further, in the embodiment of FIGS. 3A and 3B, in order to reduce the weight of the entire electronic device 10, the conductive sheet 1 may be formed into a mesh-shaped metal sheet. In this case, the mesh-shaped conductive sheet 1 faces one side of the living body, and is preferably attached to the plastic layer 11 as in the embodiment of FIG. 3B. By this design, the plastic layer 11 can provide structural support for the conductive sheet 1.

Figure 4 is another embodiment of Figure 3A. In the present embodiment, the conductive sheet body 1 is formed with a slot 4B adjacent to the first region 3A. Specifically, the conductive sheet body 1 is actually isolated from the accommodating space A of the casing 3, so that the first region 3A of the accommodating space A is also opposed to the conductive sheet body 1. Here, the position of the conductive sheet 1 adjacent to the first region 3A means that the first region 3A is projected on or near the range of the conductive sheet 1. Therefore, as shown in FIG. 4, the slit 4B is formed on the periphery of the conductive sheet 1 and the periphery of the range in which the first region 3A is projected on the conductive sheet 1, and/or partially overlaps the projection range. In the present embodiment, the slot 4B has a first segment X, a second segment Y, and a third segment Z, wherein the first segment X, the second segment Y, and the third segment Z are connected; however, are not limited thereto. As shown in FIG. 4, the first segment X is parallel to the extending direction of the first radiating element 4A, and the second segment Y is perpendicular to one end portion of the first segment X and extends in a direction parallel to the side of the casing 3, The third segment Z is perpendicular to the other end of the first segment X and extends parallel to the second segment Y. In other words, as shown in Figure As shown, the slot 4B forms a "ㄇ" shape around the first radiating element 4A. Referring to the specifications exemplified above, in the present embodiment, the width of the slot 4B is about 1 mm, wherein the length of the first segment X is about 32 mm, and the length of the second segment Y and the third segment Z are about 6.3 each. Mm. In addition, the shape of the slot 4B is "ㄇ" in the present embodiment; however, it is not limited thereto, and other shapes, lengths, and/or widths may be formed in other different embodiments, for example, it may be disposed in an "L" shape on the conductive The sheet 1 is surrounded by a portion in which the first portion 3A is projected on the conductive sheet 1 (that is, adjacent sides of the projection range are surrounded by the "L"-shaped slot 4B).

When the first radiating element 4A is driven, the first radiating element 4A excites the conductive sheet 1 and the slot 4B to collectively form a one-band mode. In this embodiment, the length of the slot 4B is about one-half of the modal wavelength of the frequency band; but is not limited thereto, and the length of the slot 4B may be adjusted according to design requirements in other different embodiments. In addition, compared with the embodiment of FIG. 3, the activated slot 4B generates a strong signal together with the first radiating element 4A, which can overcome the inability to effectively connect with another host wireless signal due to the proximity of the living organism. situation.

Figure 5 is a graph of frequency versus efficiency comparing the embodiments of Figures 3 and 4 above with an electronic device without a conductive sheet. As shown in Figure 5, in the Bluetooth band (2.4GHz~2.485GHz), the average efficiency of an ordinary detector electronic device without a conductive sheet is about 9.2% (please refer to the plastic patch). In contrast, the embodiment of the conductive sheet 1 used in FIG. 3 can achieve an average efficiency of about 14.1% in the Bluetooth band (please refer to the metal patch 1); the conductive sheet 1 and the slot used in FIG. The embodiment of 4B achieves an average efficiency of about 14.3% (please refer to metal patch 2). In other words, the electronic device of the present invention can increase the radiation efficiency by about 54.1%, which can extend the use of the electronic device and has obvious energy saving effects. For example, in the case of the electronic product 10 as a blood glucose measuring device, the electronic device 10 can periodically or continuously help the user to measure blood sugar, and transmit the blood glucose data to the wireless communication mode in a timed or continuous manner. The host performs data analysis. By designing the conductive sheet 1 and/or the slot 4B of the present invention, the battery of the electronic device 10 can be saved and effectively extended. Use of the long electronic device 10.

6 and 7 are distribution diagrams of signal intensity versus user position. As shown in Figure 6, from the user's point of view, if the user attaches the blood glucose device to the front of the body, the intensity of the signal distribution of the non-conductive film detector in the forward direction will be significantly more conductive than in this case. Embodiments of the body and/or slot (second radiating element) structure are poor. As seen from the side of the user in FIG. 7, it will be more apparent that the achievable signal distribution intensity of the embodiment having the conductive sheet and/or the slot structure in the present case is relatively large. In other words, compared with the detector without the design of the conductive sheet and/or the slot of the present invention, the embodiment of FIG. 3 and FIG. 4 can effectively increase the signal gain while maintaining the same output power. The distribution is such that it is easier to link the signal to the host of the blood glucose data analysis.

The present invention has been described by the above-described related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, modifications and equivalents of the spirit and scope of the invention are included in the scope of the invention.

1‧‧‧Electrical sheet

1A‧‧‧ first side

1B‧‧‧ second side

2‧‧‧Communication module

3‧‧‧Shell

4A‧‧‧First Radiation Unit

5‧‧‧Circuit board

6‧‧‧Signal Processing Unit

10‧‧‧Electronic devices

Claims (10)

An electronic device, configured to be disposed on a biological body, comprising: a conductive sheet having a first surface and a second surface, wherein the second surface faces the living body; and a communication module is disposed The first surface of the first surface is larger than the area of the first surface of the communication module. The communication module includes: a housing, forming a receiving space, and the receiving space has a first a first and a second area; a first radiating unit disposed in the first area; and a circuit board disposed in the second area and having a signal processing unit electrically connected to the first radiating unit; The signal processing unit drives the first radiating unit to form a frequency band mode. The electronic device of claim 1, wherein the circuit board further comprises a detecting unit, wherein the conductive sheet forms a through hole with respect to a projection range of the detecting unit, and the detecting unit passes through the through hole The signal processing unit generates a detection information according to the information collected in the environment in which the detection unit is located, and the signal processing unit drives the first information according to the detection information. A radiating element. The electronic device of claim 1, wherein the length of the first radiating element is about one quarter of a mode wavelength of the frequency band. The electronic device of claim 3, wherein the conductive sheet body forms a slot adjacent to the first region, and the first radiating unit excites the conductive sheet body and the slot to jointly form the frequency band mode. The electronic device of claim 4, wherein the slot has a first segment, a second segment, and a third segment, the first segment being parallel to an extending direction of the first radiating element, the first The two segments extend perpendicularly from one end of the first segment and toward a direction parallel to the side of the housing, the third segment extending perpendicular to the other end of the first segment and extending parallel to the second segment. The electronic device of claim 4, wherein the slot has a length of about one-half of a modal wavelength of the frequency band. The electronic device of claim 1, further comprising a first adhesive layer disposed between the communication module and the first surface to isolate the receiving space and the conductive Sheet. The electronic device of claim 1, wherein the frequency band mode is between 2.4 GHz and 2.485 GHz. The electronic device of claim 1, wherein the conductive sheet body is also a mesh metal sheet. The electronic device of claim 1, wherein the first radiating element is attached to the inner surface of the housing facing the conductive sheet, and the housing is insulated from the conductive sheet.