Electronic Watch

Abstract

The utility model discloses an electronic watch, which relates to the technical field of electronic watches, wherein the electronic watch comprises a shell, a light detection group and a detection electrode group, the shell comprises a display window and a contact surface opposite to the display window; the light detection group comprises an optical sensor arranged on the contact surface for monitoring heart rate; the detection electrode group is electrically connected to the light detection group and comprises four detection electrodes, the four detection electrodes are arranged in a ring around the light detection group and exposed on the contact surface, one end of the detection electrode close to the contact surface is used to detect the wearing of the electronic watch, and the four detection electrodes are integrally formed with the shell. The technical solution provided by the utility model can reduce the interference of external light on the optical sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic watches, in particular to an electronic watch. Background Art

[0002] Currently, there is an electronic watch on the market that measures heart rate through an optical sensor. This optical sensor is usually located on the back of the watch and monitors the heart rate by illuminating the skin and detecting the reflected light. When the heart beats, the blood flow rate will change, which will affect the light reflection of the skin. By analyzing these changes, the heart rate can be calculated. The advantage of optical sensors is that there is no need to use conductive electrodes, making the detection process more comfortable and convenient, but sometimes it is affected by external light interference, affecting accuracy. Utility Model Content

[0003] The main purpose of the utility model is to provide an electronic watch, aiming to reduce the interference of external light on the optical sensor.

[0004] To achieve the above-mentioned purpose, the electronic watch proposed by the utility model comprises:

[0005] A housing, comprising a display window and a contact surface facing away from the display window;

[0006] a light detection group, including an optical sensor disposed on the contact surface, for monitoring heart rate;

[0007] A detection electrode group, the detection electrode group is electrically connected to the light detection group and includes four detection electrodes, the four detection electrodes are arranged around the circumference of the light detection group and exposed on the contact surface, one end of the detection electrode close to the contact surface is used to detect the wearing of the electronic watch, and the four detection electrodes are integrally formed with the shell.

[0008] In one embodiment, a center line of a cross section of the detection electrode is configured as an arc line.

[0009] In one embodiment, the centers of center lines of cross sections of the four detection electrodes are separated from each other.

[0010] In one embodiment, the housing is provided with a mounting hole for matching the detection electrode, the detection electrode is provided with a groove corresponding to the mounting hole, and the bottom wall of the groove extends into the mounting hole.

[0011] In one embodiment, the electronic watch further comprises a charging component, the contact surface is provided with a charging hole, the charging component is arranged in the charging hole, and the center line of the cross section of the charging hole is configured as an arc.

[0012] In one embodiment, the charging assembly includes a plurality of charging posts, a charging protrusion is provided in the charging hole, the charging posts are provided on the charging protrusion, and the top ends of the charging posts are exposed in the charging hole.

[0013] In one embodiment, the center line of the cross section of the charging protrusion is configured as an arc line, and has the same center and arc as the center line of the cross section of the charging hole.

[0014] In one embodiment, the contact surface is provided with a through hole, a lens is matched and arranged in the through hole, the optical sensor is arranged in the through hole, and the lens cover is arranged in the through hole.

[0015] In one embodiment, the lens is integrally formed with the housing.

[0016] In one embodiment, the detection electrode is formed by a powder metallurgy process.

[0017] The electronic watch in the technical solution of the utility model includes a shell, a light detection group and a detection electrode group. The shell includes a display window and a contact surface opposite to the display window; the light detection group includes an optical sensor arranged on the contact surface to monitor the heart rate; the detection electrode group is electrically connected to the light detection group and includes four detection electrodes. The four detection electrodes are arranged around the circumference of the light detection group and exposed on the contact surface. One end of the detection electrode close to the contact surface is used to detect the wearing of the electronic watch. When the four detection electrodes all detect contact with the skin, it can be determined that the electronic watch is worn on the wrist, the periphery of the optical sensor is in contact with the human skin, and no external light enters. When the four detection electrodes all detect contact with the skin, the light detection group starts to work. This setting can effectively improve the accuracy of the optical sensor in detecting the heart rate. The four detection electrodes are integrally formed with the shell, which greatly simplifies the product assembly process and makes the appearance more concise and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of an embodiment of an electronic watch provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the middle shell;

[0021] Figure 3for Figure 1 Another structural schematic diagram of the middle shell;

[0022] Figure 4 for Figure 1 Another structural schematic diagram of the middle shell.

[0023] Description of Figure Numbers:

[0024] 100, housing; 11, display window; 12, contact surface; 121, mounting hole; 122, charging hole; 123, charging protrusion; 124, through hole; 125, lens;

[0025] 200, light detection group; 21, optical sensor;

[0026] 300, detection electrode group; 31, detection electrode; 311, groove;

[0027] 400. Charging component; 41. Charging column.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The utility model provides an electronic watch.

[0033] See also Figures 1 to 4 In one embodiment of the utility model, the electronic watch includes a shell 100, a light detection group 200 and a detection electrode 300, the shell 100 includes a display window 11 and a contact surface 12 opposite to the display window 11; the light detection group 200 includes an optical sensor 21 arranged on the contact surface 12 for monitoring the heart rate; the detection electrode 300 is electrically connected to the light detection group 200 and includes four detection electrodes 31, the four detection electrodes 31 are arranged around the circumference of the light detection group 200 and exposed on the contact surface 12, and one end of the detection electrode 31 close to the contact surface 12 is used to detect the wearing of the electronic watch. When the four detection electrodes 31 all detect contact with the skin, it can be determined that the electronic watch is worn on the wrist, the periphery of the optical sensor 21 is in contact with the human skin, and no external light enters, which can improve the accuracy of the optical sensor 21 in detecting the heart rate. The four detection electrodes 31 are integrally formed with the shell 100, which greatly simplifies the product assembly process and makes the appearance more simple and beautiful.

[0034] In one embodiment, the center line of the cross section of the detection electrode 31 is configured as an arc, so that the four detection electrodes 31 can form a ring, so as to accurately detect whether the periphery of the optical sensor 21 is in close contact with the skin, which helps to prevent external light from interfering with the detection accuracy during the process of the optical sensor 21 detecting the heart rate. In other embodiments, the center line of the cross section of the detection electrode 31 can also be configured as a straight line, and the four detection electrodes 31 can enclose a rectangle.

[0035] In one embodiment, the centers of the center lines of the cross sections of the four detection electrodes 31 are separated from each other, that is, the centers of the center lines of the cross sections of the four detection electrodes 31 do not overlap with each other, so as to expand the area enclosed by the detection electrodes 31. Furthermore, the electronic watch also includes a watch strap, which is arranged on opposite sides of the housing 100, and the detection electrodes 31 close to one side of the watch strap are divided into one group, and the detection electrodes 31 close to the other side of the watch strap are divided into one group, and the distance between the two groups of detection electrodes 31 is greater than the distance between the two detection electrodes 31 in the same group. Since the direction in which the strap is wrapped around the wrist is the radial direction of the wrist, and affected by the shape of the human arm bone, the outer part of the wrist has a relatively flat structure in the axial direction of the wrist, so when the electronic watch slides in the axial direction of the wrist, the skin on the wrist will still keep in contact with the detection electrode 31; in the radial direction of the wrist, the wrist has a certain curvature, so when the electronic watch slides in the radial direction of the wrist, the housing 100 is easy to tilt on the wrist, so that external light interferes with the optical sensor 21, so the detection electrode 31 is set close to the strap, and the distance between the detection electrodes 31 close to the side of the strap is short, so that the housing 100 can slide in the radial direction of the wrist, and when the housing 100 tilts on the wrist, the detection electrode 31 can detect in time that the housing 100 is in full contact with the skin, so as to give an alarm and stop the light detection group 200 from detecting. In other embodiments, the center of the center line of the cross section of the four detection electrodes 31 can also coincide.

[0036] In one embodiment, the shell 100 is provided with a mounting hole 121 for matching the detection electrode 31, and the detection electrode 31 is provided with a groove 311 corresponding to the mounting hole 121, and the bottom wall of the groove 311 extends into the mounting hole 121. That is, the other structures of the detection electrode 31 and the groove side walls of the groove 311 are in contact with the shell 100, so that there is a large contact area between the detection electrode 31 and the shell 100, and when the detection electrode 31 is embedded in the shell 100 in a molten state and is integrally formed with the shell 100, it is firmly connected to the shell 100 and has better waterproof performance. In other embodiments, the detection electrode 31 may not be provided with a groove 311, and the periphery of the detection electrode 31 is embedded in the shell 100.

[0037] In one embodiment, the detection electrode is formed by a powder metallurgy process. The powder metallurgy process allows the groove 311 on the sensing electrode to have a high forming rate, and the sensing electrode can be produced quickly and in large quantities. This helps to reduce the production cost of complex parts and improve production efficiency. In other embodiments, the sensing electrode can be formed by stamping a metal plate.

[0038] In one embodiment, the electronic watch further includes a charging assembly 400, a charging hole 122 is provided on the contact surface 12, the charging assembly 400 is provided in the charging hole 122, and the center line of the cross section of the charging hole 122 is configured as an arc. This can effectively prevent the charging device from being reversely inserted into the charging hole 122, thereby avoiding burning the electronic parts in the electronic watch. In other embodiments, a foolproof structure can also be provided in the charging hole 122.

[0039] In one embodiment, the charging assembly 400 includes a plurality of charging posts 41, a charging protrusion 123 is provided in the charging hole 122, the charging post 41 is provided on the charging protrusion 123, and the top of the charging post 41 is exposed in the charging hole 122. The center line of the cross section of the charging protrusion 123 is configured as an arc, and has the same center and arc as the center line of the cross section of the charging hole 122. In other embodiments, the charging assembly 400 may also include a plurality of elastic ejectors, which are provided in the charging hole 122. In another embodiment, the cross-sectional shape of the charging protrusion 123 may also be configured as a square, a rectangle or other random shapes.

[0040] In one embodiment, the contact surface 12 is provided with a through hole 124, a lens 125 is matched in the through hole 124, the optical sensor 21 is provided in the through hole 124, and the lens 125 is covered in the through hole 124. The lens 125 can protect the optical sensor 21. In other embodiments, the material of the housing 100 can also be configured as a transparent material, the optical sensor 21 is provided in the housing 100, and the light emitted by the optical sensor 21 can pass through the transparent housing 100 to illuminate the skin.

[0041] In one embodiment, the lens 125 is integrally formed with the housing 100. Currently, the lens 125 is mostly made of a transparent plastic sheet, so the lens 125 is made of a light-transmitting plastic material. In this case, the lens 125 and the housing 100 can be integrally formed by a two-color injection molding process. Of course, the lens 125 can also be made of transparent glass. In this case, the lens 125 can be embedded in the molten housing 100 and integrally formed with the housing 100. In other embodiments, the lens 125 and the housing 100 can also be separately formed, and the lens 125 is fixed to the housing 100 by glue.

[0042] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electronic watch, characterized in that: include: A housing, comprising a display window and a contact surface facing away from the display window; a light detection group, including an optical sensor disposed on the contact surface, for monitoring heart rate; A detection electrode group, the detection electrode group is electrically connected to the light detection group and includes four detection electrodes, the four detection electrodes are arranged around the circumference of the light detection group and exposed on the contact surface, one end of the detection electrode close to the contact surface is used to detect the wearing of the electronic watch, and the four detection electrodes are integrally formed with the shell.

2. The electronic watch according to claim 1, characterized in that: The center line of the cross section of the detection electrode is configured as an arc line.

3. The electronic watch as claimed in claim 2, characterized in that: The centers of the center lines of the cross sections of the four detection electrodes are separated from each other.

4. The electronic watch according to claim 1, characterized in that: The housing is provided with a mounting hole for matching the detection electrode, and the detection electrode is provided with a groove corresponding to the mounting hole, and the bottom wall of the groove extends into the mounting hole.

5. The electronic watch as claimed in claim 1, characterized in that: The electronic watch also includes a charging component. The contact surface is provided with a charging hole. The charging component is arranged in the charging hole. The center line of the cross section of the charging hole is configured as an arc.

6. The electronic watch as claimed in claim 5, characterized in that: The charging assembly includes a plurality of charging posts, a charging protrusion is provided in the charging hole, the charging posts are arranged on the charging protrusion, and the top ends of the charging posts are exposed in the charging hole.

7. The electronic watch as claimed in claim 6, characterized in that: The center line of the cross section of the charging protrusion is configured as an arc line, and has the same center and arc as the center line of the cross section of the charging hole.

8. The electronic watch as claimed in claim 1, characterized in that: The contact surface is provided with a through hole, a lens is matched and arranged in the through hole, the optical sensor is arranged in the through hole, and the lens cover is arranged in the through hole.

9. The electronic watch as claimed in claim 8, characterized in that: The lens is integrally formed with the housing.

10. The electronic watch according to claim 1, characterized in that: The detection electrode is formed by a powder metallurgy process.

Images