A wearable device

Abstract

This invention discloses a wearable device, including a device housing, a circuit board, and an antenna (feed patch + ground patch). The feed patch and ground patch are attached to the inner side of the device housing. The circuit board is used to power and excite the feed patch through a feed wire, so that the feed patch and ground patch work together to generate a dual-operating frequency band covering a first target bandwidth and a second target bandwidth. Therefore, the antenna of this application is attached to the inner side of the device housing, without occupying additional internal space, and the circuitry on the circuit board has minimal impact on the antenna, resulting in better antenna performance. Furthermore, the antenna of this application can operate in dual operating frequency bands, which is beneficial for expanding the device's functionality.

Description

Technical Field

[0001] This invention relates to the field of wearables, and in particular to a wearable device. Background Technology

[0002] As society develops and people's material needs are met, they are paying more and more attention to their health. Currently, smart wearable devices provide an excellent option for monitoring users' physical and exercise indicators, enabling real-time monitoring of users' health status and encouraging them to develop good exercise habits.

[0003] In smart wearable devices, the main circuit board and the antenna connected to it are crucial components. Currently, the main circuit board has a bracket for mounting the antenna, used to fix the antenna inside the device. However, this antenna placement method occupies a significant amount of internal space, and the circuitry on the main circuit board can easily interfere with the antenna, leading to a decrease in antenna performance.

[0004] Therefore, how to provide a solution to the above-mentioned technical problems is a problem that those skilled in the art need to solve at present. Summary of the Invention

[0005] The purpose of this invention is to provide a wearable device in which the antenna is attached to the inside of the device housing, without taking up additional space inside the device, and the circuits on the main board have little impact on the antenna, resulting in better antenna performance; in addition, the antenna of this application can operate in dual operating frequency bands, which is beneficial for expanding the device's functions.

[0006] To address the aforementioned technical problems, the present invention provides a wearable device, comprising:

[0007] Equipment housing;

[0008] A circuit board located within the housing of the device;

[0009] A power supply patch that is attached to the inside of the device housing and connected to the power supply terminal of the circuit board via a power supply wire;

[0010] A grounding patch that is attached to the inside of the device housing and connected to the grounding terminal of the circuit board;

[0011] The circuit board is used to power and excite the power supply patch through the power supply line, so that the power supply patch and the grounding patch work together to generate a dual operating frequency band covering the first target bandwidth and the second target bandwidth.

[0012] Optionally, the device housing includes a first sidewall, a second sidewall, a third sidewall, a first bend connecting the first sidewall and the second sidewall, and a second bend connecting the second sidewall and the third sidewall;

[0013] The power supply patch includes:

[0014] A first rectangular patch is attached to the inner side of the first sidewall and extends along the thickness direction of the wearable device;

[0015] A second rectangular patch is attached to the inner side of the first sidewall and is perpendicularly connected to the first rectangular patch;

[0016] A third rectangular patch is attached to the inside of the first bent portion and connected to the second rectangular patch;

[0017] A fourth rectangular patch is attached to the inner side of the second sidewall and connected to the third rectangular patch;

[0018] A fifth rectangular patch is attached to the inside of the second bend and connected to the fourth rectangular patch;

[0019] A sixth rectangular patch is attached to the inner side of the third sidewall and connected to the fifth rectangular patch.

[0020] Optionally, the power supply patch is an L-shaped patch.

[0021] Optionally, the grounding patch includes:

[0022] An electrical connection portion connected to the ground terminal of the circuit main board;

[0023] A seventh rectangular patch is attached to the inside of the first bent portion and connected to the electrical connection portion;

[0024] An eighth rectangular patch is attached to the inner side of the second sidewall and connected to the seventh rectangular patch.

[0025] Optionally, the electrical connection is a metal spring.

[0026] Optionally, the seventh rectangular patch and the eighth rectangular patch have the same short side length.

[0027] Optionally, the device housing includes a top and a bottom;

[0028] The power supply patch is positioned close to the top; the grounding patch is positioned close to the bottom.

[0029] Optionally, the antenna composed of the feed patch and the ground patch is an LDS antenna.

[0030] Optionally, the wearable device is a smart bracelet or a smartwatch.

[0031] Optionally, the circuit board is specifically used to power and excite the power supply patch through the power supply line, so that the power supply patch and the grounding patch work together to generate a dual operating frequency band covering the GPS bandwidth and the BLE bandwidth.

[0032] This invention provides a wearable device, including a device housing, a circuit board, and an antenna (feed patch + ground patch). The feed patch and ground patch are attached to the inside of the device housing. The circuit board is used to power and excite the feed patch through a feed wire, so that the feed patch and ground patch work together to generate a dual-operating frequency band covering a first target bandwidth and a second target bandwidth. Therefore, the antenna of this application is attached to the inside of the device housing, without occupying additional internal space, and the circuitry on the circuit board has minimal impact on the antenna, resulting in better antenna performance. Furthermore, the antenna of this application can operate in dual frequency bands, which is beneficial for expanding the device's functionality. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the prior art and embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the internal design of a wearable device provided in an embodiment of the present invention;

[0035] Figure 2 A top view of the internal design of a wearable device provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of an antenna design for a wearable device provided in an embodiment of the present invention. Figure 1 ;

[0037] Figure 4 A schematic diagram of an antenna design for a wearable device provided in an embodiment of the present invention. Figure 2 ;

[0038] Figure 5 A return loss diagram of an antenna provided in an embodiment of the present invention;

[0039] Figure 6 An efficiency diagram of an antenna provided for an embodiment of the present invention;

[0040] Figure 7 A GPS direction map provided in an embodiment of the present invention;

[0041] Figure 8 This invention provides a BLE radiation pattern according to an embodiment of the invention. Detailed Implementation

[0042] The core of this invention is to provide a wearable device in which the antenna is attached to the inside of the device housing, without taking up extra space inside the device, and the circuits on the main board have little impact on the antenna, resulting in better antenna performance; in addition, the antenna of this application can operate in dual operating frequency bands, which is beneficial for expanding the device's functions.

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the internal design of a wearable device provided in an embodiment of the present invention; Figure 2 This is a top view of the internal design of a wearable device provided in an embodiment of the present invention.

[0045] The wearable device includes:

[0046] Equipment housing 1;

[0047] The main circuit board 2 is located inside the device housing 1;

[0048] A power supply patch 3 is attached to the inside of the device housing 1 and connected to the power supply terminal of the circuit board 2 via a power supply wire;

[0049] A grounding patch 4 is attached to the inside of the device housing 1 and connected to the grounding terminal of the circuit board 2;

[0050] The circuit board 2 is used to power and excite the power supply patch 3 through the power supply line, so that the power supply patch 3 and the grounding patch 4 work together to generate a dual operating frequency band covering the first target bandwidth and the second target bandwidth.

[0051] Specifically, the wearable device of this application includes a device housing 1, a circuit board 2, a power supply patch 3, and a grounding patch 4 (and may also include a battery 5 and other components disposed within the device housing 1), and its working principle is as follows:

[0052] The antenna in the wearable device of this application includes a feed patch 3 and a ground patch 4. Both the feed patch 3 and the ground patch 4 are attached to the inside of the device housing 1 of the wearable device, and both the feed patch 3 and the ground patch 4 are metal patches. The feed patch 3 is connected to the feed terminal of the circuit board 2 inside the wearable device through a feed wire, and the ground patch 4 is connected to the ground terminal (GND) of the circuit board 2 inside the wearable device.

[0053] Based on this, for the antenna structure of this application, by adjusting the overall structure of the antenna, it is possible to achieve the following: under the combined action of the overall structure of the antenna, a dual operating frequency band covering the first target bandwidth and the second target bandwidth is generated. Specifically, the circuit board 2 in the wearable device can be powered by the feed wire to excite the feed patch 3, so that the feed patch 3 and the ground patch 4 work together to generate a dual operating frequency band covering the first target bandwidth and the second target bandwidth.

[0054] In antenna applications, if the wearable device is used as a transmitting device, the feed end of the circuit board 2 inside the wearable device serves as the radio frequency transmitting end. The circuit board 2 can transmit radio frequency energy to the feed patch 3 through the feed wire, and the feed patch 3 will then transmit it out. If the wearable device is used as a receiving device, the feed end of the circuit board 2 inside the wearable device serves as the radio frequency receiving end. The wearable device can receive the radio frequency energy transmitted from the outside through the feed patch 3, and the energy will be transmitted to the circuit board 2 inside the wearable device for processing through the feed wire.

[0055] As can be seen, the antenna of this application is attached to the inside of the device housing, without taking up additional space inside the device, and the circuit on the main board has little impact on the antenna, resulting in better antenna performance; in addition, the antenna of this application can operate in dual operating frequency bands, which is beneficial for expanding the device's functions.

[0056] Based on the above embodiments:

[0057] Please refer to Figure 3 and Figure 4 , Figure 3 A schematic diagram of an antenna design for a wearable device provided in an embodiment of the present invention. Figure 1 ; Figure 4 A schematic diagram of an antenna design for a wearable device provided in an embodiment of the present invention. Figure 2 .

[0058] As an optional embodiment, the device housing 1 includes a first sidewall, a second sidewall, a third sidewall, a first bend connecting the first sidewall and the second sidewall, and a second bend connecting the second sidewall and the third sidewall;

[0059] The power supply patch 3 includes:

[0060] A first rectangular patch 31 is attached to the inner side of the first sidewall and extends along the thickness direction of the wearable device;

[0061] A second rectangular patch 32 is attached to the inner side of the first sidewall and is perpendicularly connected to the first rectangular patch 31;

[0062] A third rectangular patch 33 is attached to the inside of the first bend and connected to the second rectangular patch 32;

[0063] A fourth rectangular patch 34 is attached to the inner side of the second side wall and connected to the third rectangular patch 33;

[0064] A fifth rectangular patch 35 is attached to the inside of the second bend and connected to the fourth rectangular patch 34;

[0065] A sixth rectangular patch 36 is attached to the inner side of the third side wall and connected to the fifth rectangular patch 35.

[0066] Specifically, the device housing 1 of the wearable device of this application includes a first sidewall, a second sidewall, a third sidewall, a first bending portion, and a second bending portion. The power supply patch 3 includes a first rectangular patch 31, a second rectangular patch 32, a third rectangular patch 33, a fourth rectangular patch 34, a fifth rectangular patch 35, and a sixth rectangular patch 36. Its working principle is as follows:

[0067] The wearable device housing 1 has four side walls, namely the first side wall, the second side wall, the third side wall and the fourth side wall; the wearable device housing 1 has four bends, namely the first bend, the second bend, the third bend and the fourth bend; wherein, the first bend connects the first side wall and the second side wall of the housing 1; the second bend connects the second side wall and the third side wall of the housing 1; the third bend connects the third side wall and the fourth side wall of the housing 1; and the fourth bend connects the fourth side wall and the first side wall of the housing 1.

[0068] The antenna of the wearable device is attached to the first sidewall, the first bend, the second sidewall, the second bend, and the third sidewall of the device housing 1. Specifically: a first rectangular patch 31 is attached to the inner side of the first sidewall of the device housing 1, and the first rectangular patch 31 extends along the thickness direction of the wearable device. A second rectangular patch 32 is attached to the inner side of the first sidewall of the device housing 1, and the second rectangular patch 32 is perpendicularly connected to the first rectangular patch 31. A third rectangular patch 33 is attached to the inner side of the first bend of the device housing 1, and the third rectangular patch 33 is connected to the second rectangular patch 32. A fourth rectangular patch 34 is attached to the inner side of the second sidewall of the device housing 1, and the fourth rectangular patch 34 is connected to the third rectangular patch 33. A fifth rectangular patch 35 is attached to the inner side of the second bend of the device housing 1, and the fifth rectangular patch 35 is connected to the fourth rectangular patch 34. The sixth rectangular patch 36 is attached to the inner side of the third side wall of the device housing 1, and the sixth rectangular patch 36 is connected to the fifth rectangular patch 35.

[0069] Regarding the structure of the power supply patch 3 in this application, by adjusting the structure of the power supply patch 3 (such as adjusting the length and / or width of the power supply patch 3), it is possible to generate a working frequency band covering the first target bandwidth under the action of the power supply patch 3 structure.

[0070] As an optional embodiment, the power supply patch 3 is an L-shaped patch.

[0071] Specifically, the power supply patch 3 of this application is an L-shaped patch, which includes a bottom branch and an upper branch; wherein, the first rectangular patch 31 of the power supply patch 3 belongs to the bottom branch of the L-shaped patch; the second rectangular patch 32, the third rectangular patch 33, the fourth rectangular patch 34, the fifth rectangular patch 35, and the sixth rectangular patch 36 of the power supply patch 3 belong to the upper branch of the L-shaped patch. The power supply patch 3 with this structure has better performance.

[0072] As an optional embodiment, the grounding patch 4 includes:

[0073] Electrical connection part 41 connected to the ground terminal of the main circuit board 2;

[0074] A seventh rectangular patch 42 is attached to the inside of the first bend and connected to the electrical connection part 41;

[0075] An eighth rectangular patch 43 is attached to the inner side of the second side wall and connected to the seventh rectangular patch 42.

[0076] Specifically, the grounding patch 4 of this application includes an electrical connection portion 41, a seventh rectangular patch 42, and an eighth rectangular patch 43, and its working principle is as follows:

[0077] The seventh rectangular patch 42 is attached to the inside of the first bend of the device housing 1, and the seventh rectangular patch 42 is electrically connected to the ground terminal of the main circuit board 2 inside the wearable device through the electrical connection part 41, so that the grounding patch 4 is grounded. The eighth rectangular patch 43 is attached to the inside of the second side wall of the device housing 1, and the eighth rectangular patch 43 is connected to the seventh rectangular patch 42.

[0078] Regarding the structure of the power supply patch 3 superimposed with the grounding patch 4 in this application, by adjusting the structure of the grounding patch 4 (such as adjusting the length and / or width of the grounding patch 4), it is possible to generate a working frequency band covering the second target bandwidth under the action of the grounding patch 4 structure.

[0079] As an optional embodiment, the electrical connection part 41 is a metal spring.

[0080] Specifically, the electrical connection part 41 of this application may use a metal spring to realize the electrical connection between the seventh rectangular patch 42 and the ground terminal of the circuit board 2 inside the wearable device. The electrical connection part 41 may also use other conductive parts to realize the electrical connection between the seventh rectangular patch 42 and the ground terminal of the circuit board 2 inside the wearable device. This application does not make any special limitation here.

[0081] As an optional embodiment, the short side lengths of the seventh rectangular patch 42 and the eighth rectangular patch 43 are the same.

[0082] Specifically, the seventh rectangular patch 42 and the eighth rectangular patch 43 of this application have the same short side length, and the long side of the rectangular patch formed by the seventh rectangular patch 42 and the eighth rectangular patch 43 is parallel to the long side of the rectangular patch formed by the third rectangular patch 33 and the fourth rectangular patch 34. The power supply patch 3 superimposed with the grounding patch 4 of this structure has better performance.

[0083] As an optional embodiment, the device housing 1 includes a top and a bottom;

[0084] The power supply patch 3 is positioned near the top; the grounding patch 4 is positioned near the bottom.

[0085] Specifically, the device housing 1 of the wearable device of this application includes a top and a bottom. The power feeding patch 3 is disposed near the top of the device housing 1, which helps to transmit and receive radio frequency energy. The grounding patch 4 is disposed near the bottom of the device housing 1, and the antenna performance is better when disposed in this position.

[0086] As an optional embodiment, the antenna composed of the feed patch 3 and the ground patch 4 is an LDS antenna.

[0087] Specifically, the device housing 1 of the wearable device in this application adopts LDS.

[0088] (Laser-Direct-structuring) materials, the equipment housing 1 is first injection molded according to the pre-designed housing structure, and then an antenna structure is formed on the inside of the equipment housing 1 using a laser engraving and plating process (specifically, the active metal seeds and additive particles on the surface of the pre-formed antenna structure on the inside of the equipment housing are first released by laser photo-etching to generate a micro-rough surface with high adhesion, and then the metallized material is deposited and penetrated into the inside of the laser-treated equipment housing to form the antenna structure). The antenna formed by this process is called an LDS antenna.

[0089] As an alternative embodiment, the wearable device is a smart bracelet or a smartwatch.

[0090] Specifically, the wearable device in this application can be a smart bracelet or a smartwatch; no particular limitation is made here. Smart bracelets or smartwatches can monitor user body and activity indicators, enabling real-time monitoring of the user's health status and encouraging the user to develop good exercise habits.

[0091] As an optional embodiment, the circuit board 2 is specifically used to power and excite the power supply patch 3 through the power supply line, so that the power supply patch 3 and the grounding patch 4 work together to generate a dual operating frequency band covering the GPS bandwidth and the BLE bandwidth.

[0092] Specifically, regarding the power supply patch 3 structure of this application, by adjusting the structure of the power supply patch 3, it is possible to generate a working frequency band covering the GPS (Global Positioning System) bandwidth under the action of the power supply patch 3 structure. Regarding the structure of the power supply patch 3 superimposed with the grounding patch 4 of this application, by adjusting the structure of the grounding patch 4, it is possible to generate a working frequency band covering BLE (Bluetooth Low Energy) under the action of the grounding patch 4 structure. For example... Figure 3 As shown, 6 is the antenna signal feed point, and 7 is the antenna ground feed point. The feed patch 3 from the antenna signal feed point 6 is a monopole patch, and the ground patch 4 from the antenna ground feed point 7 is a parasitic patch based on the monopole patch. It can be seen that the antenna of this application adopts a monopole plus parasitic method. The monopole patch from the antenna signal feed point 6 is a GPS trace, and the parasitic patch from the antenna ground feed point 7 is a BLE trace.

[0093] Based on this, the circuit board 2 within the wearable device specifically powers the power supply patch 3 via a power supply wire, causing the power supply patch 3 and the grounding patch 4 to work together to generate a dual-band operating frequency covering both GPS and BLE bandwidths. Furthermore, according to the aforementioned antenna structure, the antenna's return loss is as follows... Figure 5As shown, the antenna efficiency is as follows Figure 6 As shown, the GPS direction of the antenna is as follows: Figure 7 As shown, the BLE direction of the antenna is as follows: Figure 8 As shown in the figure, the antenna performs well.

[0094] More specifically, the circuit board 2 can achieve user location positioning through an antenna structure composed of a power supply patch 3 and a grounding patch 4, thereby monitoring the user's movement distance and time, and other movement indicators. The circuit board 2 can also interact with a terminal device (such as a mobile phone) via Bluetooth through this antenna structure to transmit the user's monitored health indicators, such as heart rate, to the terminal device. This allows the terminal device to generate relevant health reports based on the user's health indicators for the user to view.

[0095] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0096] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wearable device, characterized in that, include: Equipment housing; The device housing includes a first sidewall, a second sidewall, a third sidewall, a first bend connecting the first sidewall and the second sidewall, and a second bend connecting the second sidewall and the third sidewall; A circuit board located within the housing of the device; A power supply patch that is attached to the inside of the device housing and connected to the power supply terminal of the circuit board via a power supply wire; The power supply patch includes: a first rectangular patch attached to the inner side of the first sidewall and extending along the thickness direction of the wearable device; a second rectangular patch attached to the inner side of the first sidewall and perpendicularly connected to the first rectangular patch; a third rectangular patch attached to the inner side of the first bend and connected to the second rectangular patch; a fourth rectangular patch attached to the inner side of the second sidewall and connected to the third rectangular patch; a fifth rectangular patch attached to the inner side of the second bend and connected to the fourth rectangular patch; and a sixth rectangular patch attached to the inner side of the third sidewall and connected to the fifth rectangular patch. A grounding patch is attached to the inside of the device housing and connected to the grounding terminal of the circuit board; the grounding patch includes: an electrical connection portion connected to the grounding terminal of the circuit board; a seventh rectangular patch attached to the inside of the first bent portion and connected to the electrical connection portion; and an eighth rectangular patch attached to the inside of the second sidewall and connected to the seventh rectangular patch. The circuit board is used to power and excite the feed patch through the feed line, so that the feed patch from the antenna signal feed point acts as a single-pole patch to generate a dual-band operating frequency covering the GPS bandwidth, and the ground patch from the antenna ground feed point acts as a parasitic patch to generate a dual-band operating frequency covering the BLE bandwidth.

2. The wearable device as described in claim 1, characterized in that, The power supply patch is an L-shaped patch.

3. The wearable device as described in claim 1, characterized in that, The electrical connection part is a metal spring.

4. The wearable device as described in claim 1, characterized in that, The seventh rectangular patch and the eighth rectangular patch have the same short side length.

5. The wearable device as described in claim 1, characterized in that, The device housing includes a top and a bottom; The power supply patch is positioned close to the top; the grounding patch is positioned close to the bottom.

6. The wearable device as described in claim 1, characterized in that, The antenna formed by the feed patch and the ground patch is an LDS antenna.

7. The wearable device as described in claim 1, characterized in that, The wearable device is a smart bracelet or a smartwatch.

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