CN214284936U

CN214284936U - Biological information detection component and wearable equipment

Info

Publication number: CN214284936U
Application number: CN202022501527.6U
Authority: CN
Inventors: 黄瑞朗
Original assignee: Shenzhen Goodix Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-09-28
Anticipated expiration: 2030-07-24
Also published as: CN211962040U

Abstract

The application provides a biological information detection subassembly and wearable equipment, wherein, biological information detection subassembly includes the first detection device that is used for detecting body temperature and the second detection device that is used for detecting the heart electrograph, and the contact member of first detection device and the ECG electrode setting of second detection device are in the contact zone of wearable equipment's drain pan surface. Can promote the stability of biological information detection subassembly and measured object contact through such design, simultaneously, biological information detection subassembly and measured object contact of being convenient for more of such design more accord with actual user demand more.

Description

Biological information detection component and wearable equipment

Technical Field

The application relates to the technical field of biological information detection, in particular to a biological information detection assembly and wearable equipment.

Background

Along with the improvement of standard of living, people more and more pay more attention to the health status of self, be convenient for people to know the health status of self, more and more electronic equipment has the health detection function such as wrist-watch, bracelet, for example electrocardio detection function, temperature measurement function etc. however, these functions all need to contact with the human body through different detection device when using, because the volume of equipment such as wrist-watch, bracelet is less, and area of contact with the human body is limited, consequently, each detection device degree of difficulty is great when laying, the problem of detection device and human contact failure appears easily.

SUMMERY OF THE UTILITY MODEL

The application provides a biological information detection subassembly and wearable equipment for solve among the prior art detection device and the human contact failure problem of electronic equipment.

The application provides a biological information detection subassembly is applied to wearable equipment, biological information detection subassembly includes:

the first detection device is positioned at the bottom shell of the wearable device and used for detecting the temperature of a measured object in contact with the first detection device;

the second detection device is positioned at the bottom shell of the wearable device and used for detecting the electrocardio information of the measured object contacted with the second detection device;

the outer surface of the bottom shell of the wearable device is provided with a contact area for contacting with a measured object;

the first detection device comprises a contact piece, the contact piece is used for being in contact with an object to be detected, and at least part of the contact piece is arranged in the contact area;

the second detection means comprise ECG electrodes for contact with the object to be tested, which are at least partially arranged at the contact area.

In one possible design, the first detection device further comprises a temperature measuring element in contact with the contact element to obtain heat of the contact element and electrically connected with the temperature detection circuit.

In one possible design, the first detection device further includes:

the temperature measuring part is electrically connected with the temperature detecting circuit; and

the heat conducting part is at least partially positioned between the contact part and the temperature measuring part and is used for transferring the heat of the contact part to the temperature measuring part.

In a possible design, the first detection device further includes a blocking member, the contact member is cup-shaped, the cup-shaped contact member has a cavity, and a side of the contact member away from the human body has an opening, at least a portion of the temperature measurement member is located in the cavity, and the blocking member blocks the opening and is used for heat insulation.

In one possible embodiment, the contact element has a contact surface for contacting the object to be measured;

the area of the contact surface is more than or equal to 20 square millimeters and less than or equal to 40 square millimeters.

In one possible design, there is a spacer between the contact and the ECG electrode;

the separator is used for electrically separating the first detection device from the second detection device.

In one possible design, the width of the spacer is greater than or equal to 0.6 mm and less than or equal to 0.9 mm.

In one possible embodiment, the surface of the contact piece facing the measured object and the surface of the ECG electrode facing the measured object are located in the same plane.

In one possible design, the contact surface is curved.

In one possible design, the first detection device is located at a central axis of the bottom shell of the wearable device.

In one possible design, the first detection device is located at a central axis of the bottom case of the wearable device in the width direction.

In one possible design, the portion of the contact member located on the outer surface of the bottom case is axisymmetric with respect to a central axis of the bottom case in the width direction.

In one possible design, the second detection device includes two ECG electrodes located on an outer surface of the bottom case, and the two ECG electrodes are symmetrically arranged about a central axis of the bottom case of the wearable device in a width direction.

In one possible design, the biological information detection assembly further includes:

third detection device for collecting PPG signal of tested object;

the third detection device is mounted on a bottom shell of the wearable equipment, and an optical window of the third detection device is positioned on the inner side of an enclosed area formed by the contact piece and the ECG electrode.

In one possible design, the optical window of the third detection device is located in the middle of the bottom case.

The application also provides a wearable device, which comprises the biological information detection component.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

fig. 3 is a partial enlarged view of the position i in fig. 2.

Reference numerals:

1-a bottom shell;

2-a biological information detection component;

21-a first detection device;

211-a contact;

211 a-cavity;

211 b-contact surface;

212-temperature measuring part;

213-a thermally conductive member;

214-a closure;

22-ECG electrodes;

23-a spacer;

24-a third detection device;

25-heart rate detection optical window;

26-blood oxygen detection optical window.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Along with the improvement of living standard, people pay more and more attention to the health condition of self, in order to make things convenient for people to detect self health condition at any time, more and more electronic equipment has all set up various health detection functions such as intelligent bracelet, smart watch, for example electronic equipment can have Electrocardiogram (ECG) detection function, Photo Plethysmography (PPG) function, body temperature detection etc.. When the above functions are implemented, a corresponding detection device needs to be arranged on the electronic device, and normally, the electrocardiogram detection device needs to be in contact with a human body to detect corresponding data, for example, the electrocardiogram detection device needs to be in contact with the human body to detect bioelectricity generated by the human body, so as to obtain an electrocardiogram. Although the body temperature detection device can be a non-contact temperature detection device, the non-contact temperature detection device is easily interfered by environmental factors, and is not easy to realize long-term continuous measurement on a measured object, the contact temperature detection device has high measurement stability and high measurement precision, and can carry out long-term continuous measurement on a target to be measured. When electronic equipment such as intelligent bracelet, intelligent wrist-watch are provided with the temperature-detecting device of contact, heart electrograph detection device simultaneously, because intelligent bracelet, intelligent wrist-watch are limited with human area of contact, when setting up each detection device, detection device and human contact failure appear easily, lead to the unable problem of using of part or whole detection function of electronic equipment.

In view of this, the embodiment of the present application provides a biological information detecting assembly and a wearable device, which are used to solve the problem of poor contact between a detecting device and a human body in the prior art.

As shown in fig. 1, an embodiment of the present application provides a biological information detection assembly 2, which may be applied to a wearable device, where the wearable device includes a bottom case 1. Wearable equipment can be intelligent bracelet, intelligent wrist-watch etc. and biological information detection subassembly 2 is used for measuring each item health index of human body. Specifically, the biological information detection component 2 may be disposed on a side of the bottom case 1 facing the human body, and by such a design, when the wearable device is worn by the user, the biological information detection component 2 can be conveniently contacted with the human body.

The biological information detecting assembly 2 may include a first detecting device 21 and a second detecting device, wherein the first detecting device 21 is a temperature detecting device for contacting with the human body and measuring the body temperature of the human body, and the second detecting device is an electrocardiogram detecting device for detecting the bioelectricity generated by the human body, so as to generate an electrocardiogram, so that the wearer can know the condition of the heart. The first detection device 21 is provided with a contact member 211 for contacting with a human body, at least part of the contact member 211 is positioned on the outer surface of the bottom shell 1, the second detection device is provided with an ECG electrode 22 for contacting with the human body and conducting bioelectricity, at least part of the ECG electrode 22 is positioned on the outer surface of the bottom shell 1, and the part of the contact member 211 positioned on the outer surface of the bottom shell 1 and the part of the ECG electrode 22 positioned on the outer surface of the bottom shell 1 enclose a ring-shaped structure.

Through setting up first detection device 21 and second detection device can be convenient for the person of wearing to detect to each item health data of self, enclose into the loop configuration with the part that contact member 211 is located the surface of drain pan 1 and the part that ECG electrode 22 is located the surface of drain pan 1 and can make biological information detection subassembly 2's overall structure more reasonable, be convenient for set up contact member 211 and ECG electrode 22 simultaneously at the contact area of wearable equipment drain pan 1 (when wearing wearable equipment, the region that drain pan 1 can contact with the human body), thereby can be convenient for contact member 211 and ECG electrode 22 and human body and contact. Meanwhile, the contact piece 211 and the ECG electrode 22 can be distributed more uniformly by the annular structure, so that the contact stability of the contact piece 211 and the ECG electrode 22 with a human body can be improved, and the accuracy of the detection results of the contact piece 211 and the ECG electrode 22 is improved.

It should be noted that the ring formed by the portion of the contact member 211 located on the outer surface of the bottom shell 1 and the portion of the ECG electrode 22 located on the outer surface of the bottom shell may be a complete ring structure formed by disposing the spacer 23 therebetween, or may be a discontinuous ring structure. The discontinuous annular structure is more convenient to process and is more attractive. Meanwhile, due to the design, a preset gap can be formed between the contact piece 211 and the ECG electrode 22, and the contact piece 211 and the ECG electrode 22 can be positioned through the preset gap during installation, so that the positioning accuracy is improved.

In addition to the first detection device 21 and the second detection device, the biological information detection assembly 2 may further include a third detection device 24, where the third detection device 24 may be a photoplethysmography (PPG) detection device, and the PPG detection device is configured to detect a PPG signal of the subject, so as to obtain health data of the subject, such as pulse. Specifically, the third detecting means 24 may be located within an annular structure surrounded by a portion of the contact member 211 located on the outer surface of the bottom case 1 and a portion of the ECG electrode 22 located on the outer surface of the bottom case.

It should be noted that the functions that can be realized by the biological information detecting component 2 include, but are not limited to, the above-mentioned functions, for example, the biological information detecting component 2 may further include a heart rate detecting optical window 25 for detecting a heart rate, a blood oxygen detecting optical window 26 for detecting blood oxygen, and the like, and the heart rate detecting optical window 25, the blood oxygen detecting optical window 26, and the like may be located inside the annular structure, and the optical window is a window that can transmit light to form a light path. The detection of the blood oxygen, the heart rate and other data can be realized by a PPG detection device.

It should be noted that fig. 1 is a schematic structural diagram of only one specific embodiment, and the arrangement position of each detection device may be adjusted according to practical applications, including but not limited to the form shown in fig. 1.

As shown in fig. 1, in a specific embodiment, the second detection device may include a plurality of ECG electrodes 22, for example, may include two ECG electrodes 22, and each ECG electrode 22 is disposed axisymmetrically with respect to the central axis of the bottom case 1 of the wearable device in the width direction X. The two ECG electrodes 22 are arranged, so that the contact area between the ECG electrodes 22 and a wearer can be increased, the second detection device is in contact with a detected object conveniently, the ECG electrodes 22 of the second detection device can be distributed more uniformly due to the axial symmetry of the bottom shell 1 of the wearable device along the central axis of the width direction X, and the contact stability between the second detection device and the wearer is improved, so that the detection result is more accurate.

The requirement on the processing precision is low in the manner provided by the embodiment of the application, and the ring-shaped structure surrounded by the portion of the contact member 211 located on the outer surface of the bottom case 1 and the portion of the ECG electrode 22 located on the outer surface of the bottom case 1 can also serve as an identifier for indicating the position where the bottom case 1 can be in contact with the wearer (i.e., the position of the contact area of the bottom case 1), i.e., when the wearable device is worn, the position located inside the ring-shaped structure can be in contact with the wearer, so as to dispose other detection devices in the contact area.

When the inside of ring-shaped area is provided with other detection device, can reduce the possibility that first detection device 21 and other detection device of ring inboard take place to interfere, can also dodge parts such as mainboard, circuit board that are located other detection device of drain pan 1 inside simultaneously, make wearable equipment's overall structure more reasonable.

As shown in fig. 1 and fig. 2, in a specific embodiment, the contact member 211 may be disposed on a central axis of the bottom case 1, which may further facilitate the contact of the contact member 211 with the wearer, and specifically, the contact member 211 may be located on the central axis of the bottom case 1 along the width direction X, which may further improve the stability of the contact of the first detecting device 21 with the wearer, thereby improving the accuracy of the detection result of the first detecting device 21. Under general conditions, the width direction X of bottom shell 1 of wearable equipment is the extending direction of the arm of the wearer, through practical experiment, compare in contact member 211 equipment at other positions, set up contact member 211 at bottom shell 1 along the setting mode of width direction X's axis with the contact of wearer more reliable and more stable, accord with actual user demand more. Specifically, the portion of the contact member 211 located on the outer surface of the bottom housing 1 may be symmetrical with respect to the central axis of the bottom housing 1 along the width direction X, and the ECG electrode 22 may also be symmetrical with respect to the central axis of the bottom housing 1 along the width direction X, so as to improve the reliability and stability of the contact member and the ECG electrode 22 contacting with the human body, and at the same time, the design is more beautiful.

In a specific embodiment, as shown in fig. 3, the first detecting device 21 comprises a temperature measuring member 212, the contact member 211 is used for contacting with the wearer and conducting heat to transfer heat from the wearer to the temperature measuring member 212, and the temperature measuring member 212 is electrically connected with the temperature detecting circuit to measure the temperature of the wearer through the contact member 211. Specifically, the contact 211 can select for use the material that has good heat conductivity such as stainless steel, and thermistor can be selected for use to temperature measurement piece 212, and when contact 211 was with heat transfer to thermistor, thermistor's temperature changed, and thermistor's resistance value also correspondingly changed to can obtain the body temperature of the wearer according to thermistor's resistance value, simultaneously, thermistor is comparatively sensitive to the change of temperature, accords with actual user demand.

Such design has simple structure, the advantage of handling ease. Meanwhile, the structure of the first detection device 21 is simple, so that the structure of the first detection device 21 is optimized, and the whole volume of the first detection device 21 is reduced, so that the first detection device 21 can be installed on smaller electronic equipment with the same volume as an intelligent bracelet and an intelligent watch, the interference to other detection devices can be reduced, and the practical use requirement is met.

In a specific embodiment, as shown in fig. 3, the first detecting device 21 may further include a heat conducting member 213, and the heat conducting member 213 may be disposed between the temperature measuring member 212 and the contact member 211, i.e., the temperature measuring member 212 may contact the contact member 211 through the heat conducting member 213. Specifically, the heat conductive member 213 may be a material having good thermal conductivity, such as a thermally conductive silicone rubber.

Due to the design, the contact area between the temperature measuring part 212 and the contact part 211 can be increased through the heat conducting part 213, heat can be conveniently transferred to the temperature measuring part 212, and the accuracy of a detection result is improved.

The heat conducting member 213 may wrap at least a portion of the temperature measuring member 212, and specifically, the heat conducting member 213 may wrap the outer side of the bottom of the temperature measuring member 212, and the heat conducting member 213 is attached to the bottom of the contact member 211 without a gap, so that the temperature measuring member 212 contacts the contact member 211 through the heat conducting member 213 without a gap, thereby improving the heat conducting efficiency of the heat conducting member 213 and effectively transferring the heat of the object to be measured, which is obtained by the contact member 211, to the temperature measuring member 212 and the temperature detecting circuit connected to the temperature measuring member 212.

As shown in fig. 3, in a specific embodiment, the contact 211 may be a cup-shaped structure, that is, the contact 211 has a cavity 211a and one side has an opening, and in particular, the opening may be disposed on the side of the contact 211 away from the human body. At least a portion of the temperature measuring member 212 is located in the cavity 211 a. The first detection device 21 may further include a sealing member 214, and the sealing member 214 is used for sealing the opening of the contact 211 to seal the cavity 211 a.

Through the design, the possibility that the temperature measuring piece 212 positioned in the cavity 211a exchanges heat with the outside in a mode other than the contact piece 211 can be reduced, and therefore the accuracy of the detection result of the first detection device 21 is improved.

In one embodiment, the closure 214 may be a thermally insulating material.

The commonly used heat insulating materials comprise glass fiber cotton boards, aerogel felts and the like, the heat conductivity of the heat insulating materials is poor, heat exchange between the cavity 211a and the outside can be reduced, and the influence on the detection accuracy of the temperature measuring part 212 is reduced. Specifically, when the first detection device 21 is disposed in a wearable device, in a normal case, the opening of the contact 211 is disposed on a side of the contact 211 facing the inside of the wearable device, and the blocking piece 214 can be used for heat insulation while sealing the opening of the contact 211, so as to reduce the possibility that heat generated by electronic elements such as a main board inside the wearable device during operation flows into the cavity 211a of the contact 211, thereby improving the accuracy of the detection result of the first detection device 21.

In a specific embodiment, as shown in fig. 3, the contact member 211 has a contact surface 211b, the contact surface 211b is used for contacting with a human body, and the area of the contact surface 211b may be greater than or equal to 20 mm square and less than or equal to 40 mm square. The contact surface 211b can be a plane or an arc surface, and can be designed according to the physiological structure of a human body, so that the contact surface 211b can be better contacted with a wearer, and heat conduction is facilitated.

In one particular embodiment, as shown in fig. 1, a spacer 23 is disposed between the contact 211 and the ECG electrode 22. In general, the first detection device 21 measures the body temperature of the wearer using a thermistor, and the second detection device has an electrocardiographic detection electrode which detects bioelectricity generated by a human body to obtain an electrocardiogram of the human body, both of which involve circuits. The spacer 23 is located between the contact member 211 and the ECG electrode 22 to perform an electrical isolation function, so as to reduce the possibility of electrical interference between the contact member 211 and the ECG electrode 22, and further improve the accuracy of the detection results of the first detection device 21 and the second detection device.

In a specific embodiment, the spacer 23 may be made of an insulating material such as plastic, which has the advantages of low cost, good plasticity and insulation, and meets the actual use requirement. As shown in fig. 1, a in the figure indicates the width of the spacer 23, and the width of the spacer 23 may be greater than or equal to 0.6 mm and less than or equal to 0.9 mm. Such a design not only can play the effect of electrical isolation, but also can occupy less space to make contact member 211 and ECG electrode 22 can have great area of contact with the wearer, promote the accuracy of testing result.

In a specific embodiment, the surface of the contact 211 facing the measured object and the surface of the ECG electrode 22 facing the measured object are located on the same plane, such a design can enable the contact 211 and the ECG electrode 22 to simultaneously and effectively and stably contact with the wearer during use, compared with a scheme that one end of the first detection device 21 facing the measured object and one end of the second detection device facing the measured object are located on the same plane, the scheme provided by the present application can reduce the possibility that the contact stability of one of the contact 211 and the ECG electrode 22 with the wearer is affected due to the elastic deformation of the skin after the other one contacts with the skin of the wearer.

The ring structure surrounded by the portion of the contact member 211 located on the outer surface of the bottom case and the portion of the ECG electrode 22 located on the outer surface of the bottom case includes, but is not limited to, a circular ring structure, a square ring structure, an oval ring structure, and a racetrack ring structure (both sides are arc-shaped, and the two opposite ends of the arc-shaped are respectively connected with the two opposite ends of the other arc-shaped through straight lines). The specific shape of the ring-shaped structure can be designed according to the specific structure of the wearable device. When the contact member 211 is located on the outer surface of the bottom case and forms an annular structure with the ECG electrode 22, the portion of the biological information detection assembly contacting with the human body is distributed more uniformly on the bottom case, so as to improve the reliability and stability of contacting with the human body, and further improve the accuracy of the detection result.

Based on the biological information detection component 2 according to the foregoing embodiments, the embodiment of the present application further provides a wearable device, where the wearable device may include the biological information detection component 2 according to any of the foregoing embodiments, and since the biological information detection component 2 has the above technical effects, the wearable device including the biological information detection component 2 also has corresponding technical effects, and details are not repeated here.

The embodiment of the application provides a biological information detection assembly and wearable equipment, wherein, the biological information detection assembly 2 comprises a first detection device 21 for detecting body temperature and a second detection device for detecting electrocardiogram, and a part of a contact member 211 of the first detection device 21 positioned on the outer surface of the bottom shell and a part of an ECG electrode 22 of the second detection device positioned on the outer surface of the bottom shell are enclosed into a ring-shaped structure. Make biological information detection subassembly 2's structure more reasonable through such design, be convenient for with biological information detection subassembly 2's integral erection in wearable equipment's drain pan 1 can with the contact area of wearing person contact, and then can promote biological information detection subassembly 2 and human stability of contact, and then promote the accuracy of testing result.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A biological information detection assembly applied to a wearable device, the biological information detection assembly (2) comprising:

a first detection device (21) located at a bottom case (1) of the wearable device for detecting a temperature of a measured object in contact with the first detection device (21);

the second detection device is positioned at the bottom shell (1) of the wearable device and used for detecting the electrocardio information of the measured object contacted with the second detection device;

the outer surface of a bottom shell (1) of the wearable device is provided with a contact area for contacting with a measured object;

the first detection device (21) comprises a contact piece (211), the contact piece (211) is used for being in contact with a measured object, and the contact piece (211) is at least partially arranged in the contact area;

the second detection device comprises an ECG electrode (22), the ECG electrode (22) is used for contacting with the measured object, and the ECG electrode (22) is at least partially arranged at the contact area.

2. The biological information detecting assembly according to claim 1, wherein the first detecting means (21) further comprises a temperature measuring member (212) contacting the contact member (211) to obtain heat of the contact member (211) and electrically connected to a temperature detecting circuit.

3. The biological information detecting assembly according to claim 1, wherein the first detecting device (21) further includes:

a temperature measuring member (212) electrically connected to the temperature detecting circuit; and

a heat conducting member (213) at least partially located between the contact member (211) and the temperature measuring member (212), the heat conducting member (213) being configured to transfer heat from the contact member (211) to the temperature measuring member (212).

4. The biological information detection assembly according to claim 2, wherein the first detection device (21) further comprises a blocking member (214), the contact member (211) is cup-shaped, the cup-shaped contact member (211) has a cavity (211a), the side of the contact member (211) away from the human body has an opening, at least a part of the temperature measurement member (212) is located in the cavity (211a), and the blocking member (214) blocks the opening and is used for heat insulation.

5. The biological information detecting assembly according to any one of claims 1 to 4, wherein the contact member (211) has a contact surface (211b) that contacts the object to be measured;

the area of the contact surface (211b) is not less than 20 square millimeters and not more than 40 square millimeters.

6. The biological information detection assembly according to any one of claims 1 to 4, wherein the contact member (211) and the ECG electrode (22) have a spacer (23) therebetween;

the separator (23) is used for electrically separating the first detection device (21) and the second detection device.

7. The biological information detection assembly according to claim 6, wherein the width of the spacer (23) is 0.6 mm or more and 0.9 mm or less.

8. The biological information detecting assembly according to any one of claims 1 to 4, wherein a face of the contact member (211) facing the subject and a face of the ECG electrode (22) facing the subject are located on the same plane.

9. The biological information detecting assembly according to claim 5, wherein the contact surface (211b) is curved.

10. The biological information detection assembly according to any one of claims 1 to 4, characterized in that the first detection means (21) are located at a central axis of the bottom shell (1) of the wearable device.

11. The biological information detection assembly according to claim 10, wherein the first detection means (21) is located at a central axis of the bottom case (1) of the wearable device in a width direction.

12. The biological information detecting assembly according to claim 11, wherein a portion of the contact member (211) located on the outer surface of the bottom case (1) is axisymmetric with respect to a central axis of the bottom case (1) in the width direction.

13. The biological information detection assembly according to claim 11, wherein the second detection means comprises two of the ECG electrodes (22) located on an outer surface of the bottom case (1), the two ECG electrodes (22) being symmetrically disposed about a central axis of the bottom case (1) of the wearable device in a width direction.

14. The biological information detection assembly according to any one of claims 1 to 4, wherein the biological information detection assembly (2) further includes:

third detection means (24) for acquiring a PPG signal of the subject;

the third detection device (24) is mounted on a bottom shell (1) of the wearable device, and an optical window of the third detection device (24) is positioned inside an enclosure area formed by the contact member (211) and the ECG electrode (22).

15. The biological information detection assembly according to claim 14, wherein the optical window of the third detection means (24) is located at a middle portion of the bottom case.

16. A wearable device, characterized in that it comprises a biological information detection assembly (2) according to any of claims 1 to 15.