Heart rate detection device, intelligent mattress and bed

Abstract

The utility model relates to the technical field of sensors, in particular to a heart rate detection device, an intelligent mattress and a bed. The heart rate detection device comprises a control module and a detection module, the detection module comprises a plurality of heart rate detection groups, the heart rate detection groups are arranged at intervals in the first direction, each heart rate detection group comprises a plurality of heart rate detection units, the heart rate detection units are arranged at intervals in the second direction, and the heart rate detection units are arranged at intervals in the first direction. The heart rate detection units of every two adjacent heart rate detection sets are arranged in a staggered mode. The plurality of heart rate detection units are connected in series, and the heart rate detection units are configured to detect the heart rate of the user under the control of the control module, so that the heart rate of the user can be detected by reasonably arranging the arrangement positions of the heart rate detection units no matter the user lies on one side or on the flat or the body type difference of the user is large; and the heart rate of the user can be detected accurately and sensitively.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and more particularly to a heart rate detection device, a smart mattress, and a bed. Background Technology

[0002] As people's living standards improve, their demands for mattresses are no longer limited to traditional sleep functions. They now want mattresses with more intelligent features, such as heart rate detection. However, due to significant differences in human body shape, improper placement of heart rate sensors can lead to inaccurate heart rate detection, resulting in poor heart rate detection performance in smart mattresses. Utility Model Content

[0003] This application discloses a heart rate detection device, a smart mattress, and a bed, which can accurately and sensitively detect the user's heart rate in various situations.

[0004] To achieve the above objectives, in a first aspect, this application discloses a heart rate detection device, comprising:

[0005] Control module;

[0006] The detection module is electrically connected to the control module;

[0007] The detection module includes:

[0008] Multiple heart rate detection groups are arranged at intervals in a first direction. Each heart rate detection group includes multiple heart rate detection units. The multiple heart rate detection units are arranged at intervals in a second direction. Along the first direction, the heart rate detection units of adjacent heart rate detection groups are staggered.

[0009] Multiple heart rate detection units are connected in series, and the heart rate detection units are configured to detect the user's heart rate under the control of the control module;

[0010] The second direction intersects with the first direction.

[0011] In some possible implementations, in the second direction, the spacing D between two adjacent heart rate detection units is 100mm-120mm.

[0012] In some possible implementations, the heart rate detection device further includes a first conductive element and a second conductive element, the first conductive element and the second conductive element being electrically connected to the control module, the first conductive element being connected in series to the positive terminals of a plurality of heart rate detection units, and the second conductive element being connected in series to the negative terminals of a plurality of heart rate detection units.

[0013] In some possible implementations, the heart rate detection unit is a piezoelectric ceramic structure, and the heart rate detection unit includes a main body, a first part, and a second part, wherein the first part and the second part are respectively disposed on both sides of the main body along its thickness direction;

[0014] The first conductive element includes a connecting portion and a plurality of first conductive portions. The plurality of first conductive portions are spaced apart on the connecting portion along the first direction. Each first conductive portion corresponds to a group of heart rate detection groups and is connected to a first portion of the plurality of heart rate detection units.

[0015] The second conductive element has a placement surface. The heart rate detection device further includes an insulating element disposed on the placement surface. In the thickness direction of the heart rate detection unit, the insulating element is disposed between the first conductive element and the second conductive element to insulate the first conductive element from the second conductive element. The insulating element has a plurality of mounting holes configured to expose at least a portion of the second conductive element. A plurality of heart rate detection units are respectively disposed in the corresponding mounting holes to connect the second portion of the heart rate detection unit to the second conductive element.

[0016] Wherein, one of the first part and the second part is the positive electrode of the heart rate detection unit, and the other of the first part and the second part is the negative electrode of the heart rate detection unit.

[0017] In some possible implementations, the second conductive element includes a placement surface, and the heart rate detection device further includes an insulating element disposed on the placement surface. In the thickness direction of the heart rate detection unit, the insulating element is disposed between the first conductive element and the second conductive element to insulate the first conductive element from the second conductive element.

[0018] The insulating component is provided with a receiving groove, which extends along the second direction;

[0019] The detection module also includes:

[0020] A pressure sensor, which is elongated and located in the receiving slot, is electrically connected to the control module. The pressure sensor is configured to detect the user's in-bed or out-of-bed status and send the information to the control module.

[0021] The control module is configured to control the heart rate detection unit to detect the user's heart rate according to the in-bed status;

[0022] The "in-bed state" refers to the state in which the user is located in a designated area, and the "out-of-bed state" refers to the state in which the user leaves the designated area.

[0023] In some possible implementations, the pressure sensor includes:

[0024] The main body is disposed in the receiving groove, and the main body has opposing first and second surfaces along its thickness direction, the first surface being configured to be close to the user.

[0025] A plurality of first reinforcing parts are provided, the plurality of first reinforcing parts protruding from the first surface and the plurality of first reinforcing parts being spaced apart along the first direction;

[0026] A plurality of second reinforcing portions are provided on the second surface, and in the thickness direction of the pressure sensor, the projection of the first reinforcing portion is at least partially located within the projection range of the second reinforcing portions.

[0027] In some possible implementations, the heart rate detection device further includes a support base plate and a package, with the detection module disposed on the support base plate and the package connected to the support base plate to form a package space between the package and the support base plate to cover the detection module.

[0028] Secondly, this application also discloses a smart mattress, including a mattress body and at least one heart rate detection device as described in the first aspect above, wherein the heart rate detection device is disposed on the mattress body;

[0029] The second direction is the width direction of the mattress body.

[0030] In some possible implementations, the mattress body has a first top surface along its thickness direction, the first top surface being configured as a side surface closer to the user, and the distance H between the heart rate detection device and the first top surface in the thickness direction of the mattress body is 4cm-5cm.

[0031] Thirdly, this application also discloses a bed, including the smart mattress described in the second aspect above.

[0032] Compared with the prior art, the beneficial effects of this application are:

[0033] This application discloses a heart rate detection device, a smart mattress, and a bed. The heart rate detection device includes a control module and a detection module. The detection module includes multiple heart rate detection groups arranged at intervals in a first direction. Each heart rate detection group includes multiple heart rate detection units, which are arranged at intervals in a second direction. Along the first direction, the heart rate detection units of adjacent heart rate detection groups are staggered. The multiple heart rate detection units are connected in series and configured to detect the user's heart rate under the control of the control module. The spaced arrangement of the heart rate detection units in each heart rate detection group in the second direction effectively avoids missed detections, ensuring that the user's heart rate in different positions can be accurately detected. The staggered arrangement of the heart rate detection units in adjacent heart rate detection groups further improves the detection coverage and accuracy, making the heart rate detection across the entire smart mattress more uniform and comprehensive. As can be seen, by reasonably setting the arrangement of the heart rate detection units, this application enables the heart rate detection device to more comprehensively cover the mattress surface, regardless of whether the user is lying on their side or back on the smart mattress, or regardless of the user's body shape. This improves the accuracy and reliability of heart rate detection. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the bed structure provided in an embodiment of this application;

[0036] Figure 2 This is a structural diagram of the smart mattress and pillow provided in the embodiments of this application;

[0037] Figure 3 A side view of the smart mattress provided in an embodiment of this application;

[0038] Figure 4 A front view of the heart rate detection device (package omitted) provided in an embodiment of this application;

[0039] Figure 5 An exploded view of the heart rate detection device provided in the embodiments of this application;

[0040] Figure 6 This is a schematic diagram of the heart rate detection unit provided in an embodiment of this application;

[0041] Figure 7 This is a schematic diagram of the structure of a pressure sensor provided in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 100 - Heart rate monitoring device; 1 - Control module;

[0044] 2-Detection module; 21-Heart rate detection group; 211-Heart rate detection unit; 2111-Main body; 2112-First part; 2113-Second part; 2114-Bearing part;

[0045] 3-First conductive element; 31-Connecting part; 32-First conductive part;

[0046] 4-Second conductive element; 41-Placement surface; 42-First through hole;

[0047] 5-Insulating component; 51-Mounting hole; 52-Receiving groove; 53-Second through hole;

[0048] 6-Pressure sensor; 61-Main body; 611-First surface; 612-Second surface; 62-First reinforcing part; 63-Second reinforcing part;

[0049] 7-Support base plate; 8-Encapsulation component;

[0050] 200 - Smart Mattress; 201 - Mattress Body; 2011 - First Top Surface;

[0051] 300 - Bed; 301 - Bed frame; 302 - Pillow; 303 - Headboard;

[0052] F1 - First direction; F2 - Second direction; F3 - Width direction; F4 - Thickness direction; F5 - Length direction. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In this application, the terms "upper," "front," "top," "bottom," "inner," "outer," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0055] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0056] Furthermore, the terms "installation," "setup," "equipped with," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0057] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0058] As modern consumers continue to upgrade their demands for health management and quality of life, smart mattresses, as a cross-border integration of home technology and medical health, are gradually breaking through the functional boundaries of traditional bedding. Users are no longer satisfied with simply improving sleep comfort, but expect mattresses to integrate intelligent functions such as biomonitoring, sleep analysis, and health early warning to achieve all-day, non-invasive health management. Among these, heart rate monitoring, as a core indicator for assessing cardiovascular health, has become an important direction for smart mattress research and development.

[0059] However, the complexity of human physiology and the dynamic nature of sleep behavior pose significant challenges to the precise implementation of this technology. From an ergonomic perspective, users of different genders, ages, and body types experience varying pressure distributions and limb extensions during sleep. Studies show significant differences between Asian and European populations in key dimensions such as shoulder width and pelvic width, with even more pronounced differences in surface pressure gradients between obese and slender individuals. Current mainstream smart mattresses feature relatively simple sensor layouts, often based on standard anthropometric models, making it difficult to adapt to the diverse body types in real-world scenarios. Furthermore, users unconsciously toss and turn 10-20 times after falling asleep, and these positional changes not only alter the relative positions of the chest and abdomen but also cause significant fluctuations in sensor contact pressure, thus affecting the smart mattress's heart rate detection accuracy.

[0060] In view of this, the present application provides a heart rate detection device, a smart mattress and a bed, which can accurately and sensitively detect the heart rate of the user regardless of whether the user is lying on their side or back on the smart mattress, or regardless of the user's body shape.

[0061] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0062] Please see Figure 1 ,in, Figure 1 This is a schematic diagram of the structure of a bed provided in an embodiment of this application. In a first aspect, this application discloses a bed 300, including a bed frame 301 and a smart mattress 200, the smart mattress 200 being mounted on the bed frame 301. The bed frame 301 is used to support the smart mattress 200. The bed 300 may be, but is not limited to, a regular bed, an electric bed, or a smart bed, etc., and this application embodiment does not limit this to any particular type.

[0063] In some embodiments, the bed 300 may also include a pillow 302, which is placed on the smart mattress 200 and positioned near the headboard 303. It is understood that the headboard 303 refers to one side of the bed 300 along its length F5, and the user's head rests on the pillow 302.

[0064] Please refer to the following: Figures 2 to 3 ,in, Figure 2 This is a structural diagram of the smart mattress and pillow provided in the embodiments of this application. Figure 3 This is a side view of a smart mattress provided in an embodiment of this application. In a second aspect, this application also discloses a smart mattress 200, including a mattress body 201 and at least one heart rate detection device 100, the heart rate detection device 100 being disposed on the mattress body 201. Wherein, the second direction F2 is the width direction F3 of the mattress body 201.

[0065] When a user lies on the mattress body 201, the user's longitudinal direction is the length direction F5 of the mattress body 201. The mattress body also has a width direction F3 and a thickness direction F4. The distance from the bottom surface to the top surface of the mattress body 201 is the thickness direction F4. Of the three directions—width F3, thickness F4, and length F5—two are perpendicular to each other. That is, the width direction F3 is perpendicular to the thickness direction F4, the width direction F3 is perpendicular to the length direction F5, and the length direction F5 is perpendicular to the thickness direction F4. The mattress body 201 is generally rectangular, but it can also be other shapes such as round, square, or triangular, which are not limited here.

[0066] It is understood that the heart rate detection device 100 in the smart mattress 200 may include one, two, three, four, etc., and this application embodiment does not limit this. When there are two heart rate detection devices 100, the two heart rate detection devices 100 are arranged sequentially along the width direction F3 of the mattress body 201 so that the heart rate detection devices 100 can cover the width direction F3 of the mattress body 201 as much as possible.

[0067] In some embodiments, the mattress body 201 has a first top surface 2011 along its thickness direction F4, the first top surface 2011 being configured as a side surface closer to the user, and the distance H between the heart rate detection device 100 and the first top surface 2011 in the thickness direction F4 of the mattress body 201 is 4cm-5cm.

[0068] For example, the distance H between the heart rate detection device 100 and the first top surface 2011 may include, but is not limited to, 4.0cm-4.2cm, 4.2cm-4.4cm, 4.4cm-4.6cm, 4.6cm-4.8cm, and 4.8cm-5.0cm. For instance, the distance H between the heart rate detection device 100 and the first top surface 2011 may include, but is not limited to, 4.0cm, 4.1cm, 4.2cm, 4.3cm, 4.4cm, 4.5cm, 4.6cm, 4.7cm, 4.8cm, 4.9cm, and 5.0cm, etc., and this embodiment does not limit the specific distance.

[0069] This configuration ensures that the heart rate detection device 100 is positioned appropriately within the mattress body 201, effectively detecting the user's heart rate while avoiding inaccurate detection or user discomfort caused by distances that are too close or too far. Furthermore, this range also ensures the stability and safety of the heart rate detection device 100 within the smart mattress 200, preventing displacement or damage during use.

[0070] When the distance H between the heart rate detection device 100 and the first top surface 2011 is less than 4cm, the heart rate detection device 100 will be positioned too close to the user in the mattress body 201, and the user may feel the presence of the heart rate detection device 100, thereby reducing the comfort of the smart mattress 200. When the distance H between the heart rate detection device 100 and the first top surface 2011 is greater than 5cm, the heart rate detection device 100 will be positioned too far away from the user in the mattress body 201, reducing the effectiveness of the heart rate detection device 100 in detecting the user's heart rate, thereby resulting in poor accuracy of the heart rate detection function of the smart mattress 200.

[0071] To facilitate understanding of the specific structure of the heart rate detection device 100, the specific structure of the heart rate detection device 100 will be described in detail below with reference to the accompanying drawings.

[0072] Please refer to the following: Figures 4 to 5 ,in, Figure 4 This is a front view of the heart rate detection device (package omitted) provided in the embodiments of this application. Figure 5 This is an exploded view of the heart rate detection device provided in an embodiment of this application. In a third aspect, this application also discloses a heart rate detection device 100, including a control module 1 and a detection module 2, with the detection module 2 electrically connected to the control module 1. The detection module 2 includes multiple sets of heart rate detection groups 21, which are arranged at intervals along a first direction F1. Each set of heart rate detection groups 21 includes multiple heart rate detection units 211, which are arranged at intervals along a second direction F2. Along the first direction F1, the heart rate detection units 211 of adjacent sets of heart rate detection groups 21 are staggered. The multiple heart rate detection units 211 are connected in series and configured to detect the user's heart rate under the control of the control module 1. The second direction F2 intersects the first direction F1.

[0073] It is understandable that the heart rate detection units 211 of each heart rate detection group 21 are arranged at intervals in the second direction F2, which can effectively avoid missed detections and ensure that the heart rate of users in different positions can be accurately detected. Furthermore, the staggered arrangement of the heart rate detection units 211 in adjacent heart rate detection groups 21 can further improve the detection coverage and accuracy, making the heart rate detection on the entire smart mattress 200 more uniform and comprehensive. By rationally setting the arrangement of the heart rate detection units 211, the heart rate detection device 100 can more comprehensively cover the surface of the smart mattress 200, regardless of whether the user is lying on their side, back, or has a large body shape, thereby improving the accuracy and reliability of heart rate detection.

[0074] Specifically, when a user lies on their side on the heart rate detection device 100, since the heart rate detection units 211 in the same heart rate detection group 21 are spaced apart along the second direction F2, a thinner user might lie on their side between two adjacent heart rate detection units 211 in the same heart rate detection group 21, causing the heart rate detection unit 211 to be unable to detect the user's heart rate. Therefore, by setting up multiple heart rate detection groups 21 and staggering the heart rate detection units 211 in adjacent groups 21 along the first direction F1, the heart rate detection units 211 can be rationally arranged in the heart rate detection device 100. This not only allows for multiple heart rate detection groups 21 to be arranged in the first direction F1 but also reduces the spacing between two adjacent heart rate detection units 211 in the second direction F2. This ensures that the heart rate detection device 100 can accurately and sensitively detect the user's heart rate regardless of whether the user is lying on their side or back on the smart mattress 200, or regardless of significant differences in body shape.

[0075] To improve the overall flatness and softness of the smart mattress 200, the control module 1 of this application is connected to the detection module 2 via a wire and placed on the outside or side of the smart mattress 200. This avoids placing the control module 1 near the first top surface 2011 of the smart mattress 200, which would affect the flatness of the smart mattress 200, thereby improving the comfort of using the smart mattress 200. It is understood that the control module 1 can be a mounting box for installing circuit boards and wires, and the shape of the mounting box can be rectangular, triangular, circular, etc., which is not limited in this embodiment.

[0076] In some embodiments, the spacing D between two adjacent heart rate detection units 211 in the second direction F2 is 100mm-120mm.

[0077] For example, the spacing D may include, but is not limited to, 100mm-105mm, 105mm-110mm, 110mm-115mm, and 115mm-120mm. For instance, the spacing D may include, but is not limited to, 100mm, 101mm, 102mm, 103mm, 104mm, 105mm, 106mm, 107mm, 108mm, 109mm, 110mm, 111mm, 112mm, 113mm, 114mm, 115mm, 116mm, 117mm, 118mm, 119mm, and 120mm, etc., and this application embodiment does not limit this.

[0078] With this setup, the heart rate of the user can be detected regardless of their body type or sleeping position, thereby improving the detection range and accuracy of the heart rate detection device 100. At the same time, the reasonable spacing can also effectively utilize the heart rate detection unit 211, thereby reducing the manufacturing cost of the heart rate detection device 100.

[0079] When the spacing is greater than 120mm, that is, the spacing between two adjacent heart rate detection units 211 in the second direction F2 is too large, it will cause the heart rate detection units 211 to have problems with false detection and missed detection of the user's heart rate. When the spacing is less than 100mm, that is, the spacing between two adjacent heart rate detection units 211 in the second direction F2 is too small, it will cause the heart rate detection units 211 to be arranged too densely, which will easily lead to functional redundancy and increased manufacturing costs.

[0080] In some embodiments, the heart rate detection device 100 further includes a first conductive element 3 and a second conductive element 4. The first conductive element 3 and the second conductive element 4 are electrically connected to the control module 1. The first conductive element 3 is connected in series with the positive terminals of multiple heart rate detection units 211, and the second conductive element 4 is connected in series with the negative terminals of multiple heart rate detection units 211. By setting the first conductive element 3 and the second conductive element 4, and connecting the positive and negative terminals of multiple heart rate detection units 211 in series with the control module 1, the control module 1 can easily control the multiple heart rate detection units 211, thereby improving the control efficiency of the heart rate detection device 100.

[0081] In some embodiments, the heart rate detection device 100 further includes a supporting base plate 7, on which the detection module 2 is disposed. The supporting base plate 7 supports the detection module 2 and provides the heart rate detection device 100 with a certain structural strength. Optionally, the supporting base plate 7 is bonded to the second conductive element 4, providing the second conductive element 4 with a certain structural strength. The supporting base plate 7 can be made of PVC, PP, wood, etc., and this embodiment does not limit the material used. For example, when the supporting base plate 7 is made of PVC, PVC has advantages such as light weight, corrosion resistance, and ease of processing, effectively improving the structural strength of the heart rate detection device 100. At the same time, PVC has a low cost, which helps reduce the manufacturing cost of the heart rate detection device 100.

[0082] In some embodiments, the heart rate detection device 100 further includes a package 8, which is connected to the support base plate 7 and forms a package space (not shown) between the package 8 and the support base plate 7 to cover the detection module 2. By setting the package 8 to be connected to the support base plate 7 to form a package space for the heart rate detection device 100, and covering the detection module 2 in the package space, it is beneficial to isolate the internal components of the heart rate detection device 100 from the external environment, and avoid external environmental factors (such as water, fire, dust, etc.) from interfering with or damaging the heart rate detection device 100, thereby improving the stability and service life of the heart rate detection device 100.

[0083] For example, the connection between the package 8 and the support base plate 7 can be sealed by means of bonding, hot pressing, cold pressing, etc., thereby ensuring the sealing and stability of the package space. In addition, moisture-proof and dust-proof protective measures can be set in the package space to further protect the heart rate detection unit 211 from the influence of the external environment.

[0084] For example, the encapsulation component 8 can be made of materials such as PU leather, rubber, or plastic. These materials all have good sealing and wear resistance, effectively protecting the heart rate detection unit 211. For instance, when the encapsulation component 8 is made of PU leather, it is soft and comfortable, and has good elasticity and wear resistance, effectively cushioning external impacts and protecting the heart rate detection unit 211 from damage. At the same time, PU leather also has good breathability and moisture-proof properties, preventing moisture inside the encapsulation space and further extending the service life of the heart rate detection device 100.

[0085] Please see Figure 6 ,in, Figure 6 This is a schematic diagram of the heart rate detection unit provided in an embodiment of this application. Optionally, the heart rate detection unit 211 may be a piezoelectric ceramic structure. The heart rate detection unit 211 includes a main body portion 2111, a first portion 2112, and a second portion 2113. The first portion 2112 and the second portion 2113 are respectively disposed on both sides of the main body portion 2111 along its thickness direction. One of the first portion 2112 and the second portion 2113 is the positive electrode of the heart rate detection unit 211, and the other is the negative electrode of the heart rate detection unit 211. It is understood that when the first portion 2112 is the positive electrode of the heart rate detection unit 211, the second portion 2113 is the negative electrode of the heart rate detection unit 211; and when the second portion 2113 is the positive electrode of the heart rate detection unit 211, the first portion 2112 is the negative electrode of the heart rate detection unit 211. This embodiment of the application does not limit this. Of course, in other embodiments, the heart rate detection unit 211 may also be an ultrasonic heart rate sensor, a bioelectric heart rate sensor, an optical heart rate sensor, a magnetic induction heart rate sensor, etc., and this application embodiment does not limit it.

[0086] The main body 2111 can be cylindrical, blocky, strip, sheet, etc., and the first part 2112 and the second part 2113 can also be circular, rectangular, etc. The specific shapes of the first part 2112 and the second part 2113 can be determined according to the shape of the main body 2111, and this application embodiment does not limit them.

[0087] Optionally, the heart rate detection unit 211 further includes a support portion 2114. The first portion 2112 is disposed on the side facing away from the main body portion 2111 on the support portion 2114. The support portion 2114 is configured to expose at least a portion of the first portion 2112. The support portion 2114 is used to improve the structural strength of the heart rate detection unit 211, thereby reducing the detection sensitivity of the heart rate detection unit 211 and preventing the heart rate detection unit 211 from deforming and failing. Of course, as another example, the support portion 2114 may also be disposed on the side facing away from the main body portion 2111 of the second portion 2113. This embodiment of the application does not limit this.

[0088] Specifically, the connection between the carrier portion 2114 and the first portion 2112 can be achieved by adhesive bonding, insulating tape bonding, etc. The carrier portion 2114 can be in the shape of a sheet, a block, etc.

[0089] For example, the material of the support portion 2114 can be a metal such as aluminum, silver, or copper, and this application embodiment does not limit this. For example, when the support portion 2114 is an aluminum sheet, the aluminum sheet is lightweight and inexpensive. At the same time, using an aluminum sheet as the support portion 2114 can also improve the heat dissipation performance of the heart rate detection unit 211, making the heart rate detection unit 211 less prone to failure due to overheating during long-term use.

[0090] In some embodiments, the first conductive element 3 includes a connecting portion 31 and a plurality of first conductive portions 32. The plurality of first conductive portions 32 are spaced apart on the connecting portion 31 along a first direction F1. Each first conductive portion 32 corresponds to a group of heart rate detection units 21, and the first conductive portion 32 is connected to the first part 2112 of the plurality of heart rate detection units 211. Specifically, the first conductive portion 32 is used to connect the plurality of heart rate detection units 211 in the same group of heart rate detection units 211, and the connecting portion 31 is used to connect two adjacent groups of heart rate detection units 21.

[0091] It can be understood that the first conductive part 32 can be elongated, and its extension direction is consistent with the arrangement direction of the multiple heart rate detection units 211 in the same heart rate detection group 21. Of course, as another embodiment, the first conductive part 32 can also be block-shaped, and this application embodiment does not limit it.

[0092] It is understood that the first conductive element 3 can be a conductive material such as conductive cloth or conductive strip, and this application embodiment does not limit this.

[0093] Optionally, the second conductive element 4 has a placement surface 41. The heart rate detection device 100 further includes an insulating element 5, which is disposed on the placement surface 41. The insulating element 5 is located between the first conductive element 3 and the second conductive element 4 in the thickness direction of the heart rate detection unit 211, thus insulating the first conductive element 3 from the second conductive element 4. The insulating element 5 has multiple mounting holes 51 configured to expose at least a portion of the second conductive element 4. Multiple heart rate detection units 211 are respectively disposed in corresponding mounting holes 51, so that the second portion 2113 of the heart rate detection unit 211 is connected to the second conductive element 4. By providing the insulating element 5, the first conductive element 3 and the second conductive element 4 can be insulated from each other, while also connecting the first conductive element 3 and the second conductive element 4, thereby integrating the first conductive element 3, the second conductive element 4, and the heart rate sensing module, improving the product integration of the heart rate detection device 100. In addition, since the heart rate detection unit 211 is a piezoelectric ceramic structure, the piezoelectric effect of the piezoelectric ceramic structure is used to detect the user's heart rate. The piezoelectric ceramic structure can detect minute pressure changes, thereby effectively improving the detection sensitivity and accuracy of the heart rate detection device 100.

[0094] For example, the shape of the second conductive element 4 can be strip-shaped, block-shaped, etc., and this application embodiment does not limit this. For example, when the second conductive element 4 is block-shaped, it is not only used to realize the electrical connection of the second part 2113 of the multiple heart rate detection units 211, but also used to carry the heart rate detection unit 211 and the first conductive element 3, thereby improving the integration of the heart rate detection device 100.

[0095] For example, the material of the second conductive element 4 can be conductive cloth, conductive strip, or other conductive materials, but this application embodiment does not limit this.

[0096] For example, the material of the insulating component 5 can be a soft insulating material such as EVA, PU, ​​insulating rubber, or foam, but this application embodiment does not limit this.

[0097] Optionally, by providing multiple first through holes 42 on the second conductive component 4 and multiple second through holes 53 on the insulating component 5, with each of the first through holes 42 and the second through holes 53 corresponding one-to-one, the surface of the heart rate detection device 100 forms a certain degree of concavity after the package 8 encapsulates the internal components of the heart rate detection device 100. This allows for a more uniform distribution of packaging stress during the packaging process, reducing the occurrence of localized stress concentration and thus avoiding the risk of damage to the heart rate detection device 100 during packaging. Furthermore, the packaging process involves heating and cooling steps, causing the package 8 to undergo thermal expansion and contraction. The first through holes 42 and the second through holes 53 provide a certain deformation space, reducing packaging defects caused by uneven thermal expansion of the package 8.

[0098] In some embodiments, the insulating member 5 is provided with a receiving groove 52 extending along the second direction F2. The detection module 2 also includes a pressure sensor 6, which is elongated and disposed in the receiving groove 52. The pressure sensor 6 is electrically connected to the control module 1 and is configured to detect the user's in-bed or out-of-bed status and send the information to the control module 1. The control module 1 is configured to control the heart rate detection unit 211 to detect the user's heart rate based on the in-bed status.

[0099] Among them, the "in-bed state" refers to the state in which the user is located in the designated area, that is, the state in which the user has entered the detection range of the heart rate detection device 100; the "out-of-bed state" refers to the state in which the user has left the designated area, that is, the state in which the user has left the detection range of the heart rate detection device 100.

[0100] By placing the pressure sensor 6 within the receiving groove 52 on the insulating component 5, both the heart rate detection unit 211 and the pressure sensor 6 are distributed on the insulating component 5. This not only facilitates the integration of the pressure sensor 6 into the heart rate detection device 100 but also maintains a relatively uniform overall thickness of the heart rate detection device 100. This prevents the heart rate detection device 100, which is located inside the smart mattress 200, from affecting the comfort of the smart mattress 200 due to inconsistent thickness. Simultaneously, the pressure sensor 6 is elongated and extends along the second direction F2, thus covering the position of the heart rate detection device 100 in the second direction F2, i.e., covering the width direction F3 of the smart mattress. This allows for better detection of the user's status in and out of bed, avoiding missed or false detections. Furthermore, the pressure sensor 6 is electrically connected to the control module 1, enabling real-time transmission of the detected user status to the control module 1. The control module 1 then intelligently controls the heart rate detection unit 211 based on the received signals, achieving intelligent management of the heart rate detection device 100.

[0101] The specific detection process of the heart rate detection device 100 is as follows: When the user lies on the smart mattress 200, the pressure sensor 6 detects the user's bed-sitting status and sends a signal to the control module 1. The control module 1 controls the heart rate detection unit 211 to detect the user's heart rate based on the received signal. When the user leaves the smart mattress 200, the pressure sensor 6 detects the user's bed-leaving status and sends a signal to the control module 1. The control module 1 controls the heart rate detection unit 211 to stop detection, thereby effectively saving energy and improving the service life of the heart rate detection device 100.

[0102] It is understood that the pressure sensor 6 may include, but is not limited to, piezoresistive pressure sensors, capacitive pressure sensors, fiber optic pressure sensors, piezoelectric pressure sensors, ceramic pressure sensors, resonant pressure sensors, etc., and the embodiments of this application do not limit it in this way.

[0103] Please see Figure 7 ,in, Figure 7 This is a schematic diagram of the structure of a pressure sensor provided in an embodiment of this application. Optionally, the pressure sensor 6 includes a main body 61 disposed in a receiving groove 52. The main body 61 has opposing first surfaces 611 and second surfaces 612 along its thickness direction. The first surface 611 is configured to be close to the user. The pressure sensor 6 includes a plurality of first reinforcing parts 62, which protrude from the first surface 611 and are spaced apart along a first direction F1. Since the first surface 611 serves as the surface that senses pressure changes, by protruding a plurality of first reinforcing parts 62 on the first surface 611 of the main body 61, the pressure sensing portion of the pressure sensor 6 is converted from a first surface 611 to a plurality of first reinforcing parts 62 and a plurality of second reinforcing parts 63. That is, when the contact area is reduced and the same pressure is applied, the pressure sensed by the pressure sensor 6 increases, thereby improving the detection sensitivity of the pressure sensor 6.

[0104] Optionally, the pressure sensor 6 includes a plurality of second reinforcing portions 63, which protrude from the second surface 612. In the thickness direction of the pressure sensor 6, the projection of the first reinforcing portion 62 is at least partially located within the projection range of the second reinforcing portions 63. By adding the second reinforcing portions 63, the detection sensitivity of the pressure sensor 6 can be further enhanced, improving the efficiency and accuracy of the heart rate detection device 100 in detecting whether the user is in bed or out of bed.

[0105] For example, in the thickness direction of the pressure sensor 6, the projection of the first reinforcing part 62 may partially coincide with the projection of the second reinforcing part 63, or the projection of the first reinforcing part 62 may completely coincide with the projection of the second reinforcing part 63, or the projection of the first reinforcing part 62 may completely fall within the projection range of the second reinforcing part 63, or the projection of the first reinforcing part 62 may completely cover the projection of the second reinforcing part 63. This application embodiment does not limit this.

[0106] For example, when the projections of the first reinforcing part 62 and the second reinforcing part 63 completely overlap, that is, when the first reinforcing part 62 and the second reinforcing part 63 are aligned, it is beneficial to improve the force sensitivity of the pressure sensor 6, thereby improving the efficiency and accuracy of the heart rate detection device 100 in detecting whether the user is in bed or out of bed.

[0107] It is understood that the first reinforcing part 62 can be strip-shaped, block-shaped, etc., and the second reinforcing part 63 can also be strip-shaped, block-shaped, etc., and this application embodiment does not limit this. The material of the first reinforcing part 62 can be EVA, PU, ​​insulating rubber, foam, etc., and the material of the second reinforcing part 63 can be EVA, PU, ​​insulating rubber, foam, etc., and this application embodiment does not limit this.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heart rate detection device, characterized in that, include: Control module; The detection module is electrically connected to the control module; The detection module includes: Multiple heart rate detection groups are arranged at intervals in a first direction. Each heart rate detection group includes multiple heart rate detection units. The multiple heart rate detection units are arranged at intervals in a second direction. Along the first direction, the heart rate detection units of adjacent heart rate detection groups are staggered. Multiple heart rate detection units are connected in series, and the heart rate detection units are configured to detect the user's heart rate under the control of the control module; The second direction intersects with the first direction.

2. The heart rate detection device according to claim 1, characterized in that, In the second direction, the distance D between two adjacent heart rate detection units is 100mm-120mm.

3. The heart rate detection device according to claim 1, characterized in that, The heart rate detection device further includes a first conductive element and a second conductive element. The first conductive element and the second conductive element are electrically connected to the control module. The first conductive element is connected in series to the positive electrode of a plurality of heart rate detection units, and the second conductive element is connected in series to the negative electrode of a plurality of heart rate detection units.

4. The heart rate detection device according to claim 3, characterized in that, The heart rate detection unit is a piezoelectric ceramic structure, and the heart rate detection unit includes a main body, a first part, and a second part. The first part and the second part are respectively disposed on both sides of the main body along its thickness direction. The first conductive element includes a connecting portion and a plurality of first conductive portions. The plurality of first conductive portions are spaced apart on the connecting portion along the first direction. Each first conductive portion corresponds to a group of heart rate detection groups and is connected to a first portion of the plurality of heart rate detection units. The second conductive element has a placement surface. The heart rate detection device further includes an insulating element disposed on the placement surface. In the thickness direction of the heart rate detection unit, the insulating element is disposed between the first conductive element and the second conductive element to insulate the first conductive element from the second conductive element. The insulating element has a plurality of mounting holes configured to expose at least a portion of the second conductive element. A plurality of heart rate detection units are respectively disposed in the corresponding mounting holes to connect the second portion of the heart rate detection unit to the second conductive element. Wherein, one of the first part and the second part is the positive electrode of the heart rate detection unit, and the other of the first part and the second part is the negative electrode of the heart rate detection unit.

5. The heart rate detection device according to claim 3, characterized in that, The second conductive element includes a placement surface, and the heart rate detection device further includes an insulating element. The insulating element is disposed on the placement surface, and in the thickness direction of the heart rate detection unit, the insulating element is disposed between the first conductive element and the second conductive element, so as to insulate the first conductive element from the second conductive element. The insulating component is provided with a receiving groove, which extends along the second direction; The detection module also includes: A pressure sensor, which is elongated and located in the receiving slot, is electrically connected to the control module. The pressure sensor is configured to detect the user's in-bed or out-of-bed status and send the information to the control module. The control module is configured to control the heart rate detection unit to detect the user's heart rate according to the in-bed status; The "in-bed state" refers to the state in which the user is located in a designated area, and the "out-of-bed state" refers to the state in which the user leaves the designated area.

6. The heart rate detection device according to claim 5, characterized in that, The pressure sensor includes: A main body portion disposed in the receiving groove, the main body portion having opposing first and second surfaces along its thickness direction; A plurality of first reinforcing parts are provided, the plurality of first reinforcing parts protruding from the first surface and the plurality of first reinforcing parts being spaced apart along the first direction; A plurality of second reinforcing portions are provided on the second surface, and in the thickness direction of the pressure sensor, the projection of the first reinforcing portion is at least partially located within the projection range of the second reinforcing portions.

7. The heart rate detection device according to any one of claims 1-6, characterized in that, The heart rate detection device also includes a support base plate and a package. The detection module is disposed on the support base plate, and the package is connected to the support base plate and forms a package space with the support base plate to cover the detection module.

8. A smart mattress, characterized in that, The mattress includes a mattress body and at least one heart rate detection device as described in any one of claims 1-7, wherein the heart rate detection device is disposed on the mattress body; The second direction is the width direction of the mattress body.

9. The smart mattress according to claim 8, characterized in that, The mattress body has a first top surface along its thickness direction, the first top surface being configured as a side surface closer to the user, and the distance H between the heart rate detection device and the first top surface in the thickness direction of the mattress body is 4cm-5cm.

10. A bed, characterized in that, Including the smart mattress as described in claim 8 or 9.

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