CN217525110U

CN217525110U - Multifunctional body fat scale

Info

Publication number: CN217525110U
Application number: CN202220705022.8U
Authority: CN
Inventors: 刘学文; 黄宣霖; 彭楼平
Original assignee: Shenzhen Guowei Perception Technology Co ltd
Current assignee: Shenzhen Guowei Perception Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-10-04
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a multifunctional body fat scale, which belongs to the weighing technical field. It has solved the problem of body fat measurement and foot pressure synchronous measurement among the prior art. The multifunctional body fat scale comprises a tread surface, wherein an electrode is arranged on the tread surface and is used for being in electrical contact with a sole to provide detection current, the tread surface is a flexible body, and the electrode is a flexible electrode; a pressure distribution sensor is arranged below the tread surface, and the foot pressure is transmitted to the pressure distribution sensor through the tread surface. The pressure distribution sensor is arranged under the tread surface of the utility model, and the foot pressure is transmitted to the pressure distribution sensor through the tread surface; therefore, when the body fat is detected, the pressure distribution sensor synchronously obtains the pressure data of the foot, and the pressure distribution sensor does not need to measure the pressure data respectively, thereby bringing convenience to detection.

Description

Multifunctional body fat scale

Technical Field

The utility model belongs to the technical field of weigh, especially a multi-functional body fat balance.

Background

The body fat scale is also called a human body fat scale, is a scale which is widely used at present and can weigh body weight and measure components of body fat, muscle and the like. The principle of the human body fat scale is that muscle contains more moisture such as blood and the like, and can conduct electricity, and fat does not conduct electricity. The specific principle of the body fat scale is that when the electric signal with specific frequency passes through a human body, as muscle contains more moisture such as blood and the like, the electric signal can be conducted, and fat is not conducted, so that the intelligent body fat scale can calculate resistance, and the intelligent body fat scale can accurately measure the weight percentage of the fat, the muscle, the skeleton and other human body components by using a scientific formula. In fact, several common parameters, body fat rate, moisture, muscle, bone mass, are actually "calculated".

With the continuous development and progress of science and technology, the foot health is concerned more and more, and the foot health is not only concerned with the comfort of the foot but also is the long-term expression of human health.

Foot health is an important link of human health, and the health condition of a human body can be reflected from the side if the plantar pressure and the gait are normal, so that the plantar pressure detection becomes particularly important. Moreover, the plantar pressure detection and analysis technology has been widely applied to many professional fields such as biomechanical research, quantitative evaluation of plantar pressure, research of foot diseases (flat feet, diabetic feet and the like), research and treatment of osteoarticular diseases, insole correction intervention measures and the like, and detection and analysis of plantar pressure have very important significance for human health.

However, at present, the body fat measurement and the foot pressure data measurement need to be performed by separate devices, which brings inconvenience to the detection.

Therefore, how to realize synchronous measurement of body fat measurement and foot pressure data measurement becomes a technical problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-functional body fat balance, this multi-functional body fat balance can be in the foot pressure data of measurement body fat simultaneous measurement.

The purpose of the utility model can be realized by the following technical proposal: a multifunctional body fat scale comprises a tread surface, wherein an electrode is arranged on the tread surface and is used for providing detection current by electrically contacting with a sole, the tread surface is a flexible body, and the electrode is a flexible electrode; a pressure distribution sensor is arranged below the tread surface, and the foot pressure is transmitted to the pressure distribution sensor through the tread surface; therefore, when the body fat is detected, the pressure data of the foot is synchronously obtained through the pressure distribution sensor, different devices are not needed for measurement respectively, and convenience is brought to detection.

In some embodiments, the flexible electrode is embedded in a tread surface to form an integral deformation structure with the tread surface; the electrode and the tread surface are deformed integrally, so that mutual influence is avoided, and the real pressure data of each region of the sole is transmitted to the pressure distribution sensor.

In some embodiments, the tread surface is the same hardness as the flexible electrode; the electrode and the treading surface are enabled to be consistent in pressure deformation and are treaded on the same medium layer, and therefore real pressure data of each area of the sole are transmitted to the pressure distribution sensor.

In some embodiments, a position of the flexible electrode, which is far away from the foot step, is electrically connected with an electrode contact, and the electrode contact is connected with a control circuit; therefore, the flexible electrode is electrically connected with the control circuit, the foot treading position is far away, and the pressure deformation of the electrode is avoided being influenced.

In some embodiments, the flexible electrode comprises a heel electrode corresponding to a heel strike location and a toe electrode corresponding to a toe strike location, the heel electrode in electrical connection with a heel electrode contact, the toe electrode in electrical connection with a toe electrode contact, the pressure distribution sensor located between the heel electrode contact and the toe electrode contact; the two electrodes at the heel toe ensure the sufficient electric contact area with the sole, and the electrode contact is positioned around the pressure distribution sensor and does not influence the detection of the pressure distribution sensor.

In some embodiments, the tread surface is silicone, and the flexible electrode is conductive silicone; both are silica gel materials and are easy to combine to form an integrated deformation structure, and the hardness is moderate, so that the utility model is suitable for human body contact.

In some embodiments, the pressure distribution sensor includes a piezoresistive film, a grid electrode 6 is disposed under the piezoresistive film, and the grid electrode 6 detects resistance changes of various parts of the piezoresistive film; thereby precisely obtaining the pressure of each part of the sole of the foot.

In some embodiments, independent pressure distribution sensors are respectively arranged corresponding to the treading positions of the left foot and the right foot; the independent arrangement avoids mutual influence.

In some embodiments, a bearing plate is arranged below the pressure distribution sensor, a wiring hole is formed in the middle of the bearing plate, a control circuit is arranged below the bearing plate, and a lead is connected with the flexible electrode and the pressure distribution sensor through the wiring hole; the wiring hole is positioned in the non-treading area in the middle, so that the use is not influenced, and meanwhile, the protection of the conducting wire is facilitated.

In some embodiments, the pressure distribution sensor is disposed on a PCB, the PCB is disposed on the bearing plate, a flat cable connection terminal is disposed at a position corresponding to the wire routing hole on the back of the PCB, a wire connected to the flexible electrode and a wire connected to the pressure distribution sensor on the PCB are collected on the flat cable connection terminal, and the flat cable connection terminal connects the pressure distribution sensor and the flexible electrode to the control circuit through a FPC flat cable; thereby making the overall structure compact.

Compared with the prior art, this multi-functional body fat balance has following advantage:

the pressure distribution sensor is arranged under the treading surface, and the foot pressure is transmitted to the pressure distribution sensor through the treading surface; therefore, when the body fat is detected, the pressure distribution sensor synchronously obtains the pressure data of the foot, and the pressure distribution sensor does not need to measure the pressure data respectively, thereby bringing convenience to detection.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

FIG. 1 is a schematic view of the present embodiment;

fig. 2 is an exploded schematic view of the present embodiment.

In the figure, a tread surface 1, a perspective window 101, a body fat electrode 2, a heel electrode contact 3, a toe electrode contact 4, a piezoresistive film 5, a grid electrode 6, a PCB 7, a bearing plate 8, a wiring hole 801, a base 9, a power supply module 10 and a display module 11.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and the following embodiments do not limit the present invention according to the claims. Moreover, all combinations of features described in the embodiments are not necessarily essential to the solution of the invention.

It will be understood by those of ordinary skill in the art that all directional references (e.g., above, below, upward, above, downward, below, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the figures to aid the reader's understanding, and do not imply (e.g., a limitation on position, orientation, or use, etc.) a limitation on the scope of the invention, which is defined by the claims appended hereto. Additionally, the term "substantially" may refer to slight imprecision or deviation in conditions, amounts, values, or dimensions, etc., some of which may be within manufacturing or tolerance limits.

Examples

As shown in fig. 1 and 2, the multifunctional body fat scale comprises a tread surface 1 for foot treading, wherein a body fat electrode 2 is arranged on the tread surface 1, and the body fat electrode 2 is electrically contacted with the foot to provide detection current. The tread surface 1 is a flexible body made of flexible deformation materials such as silica gel or rubber, a layer of silica gel is adopted in the embodiment, the body fat electrode 2 is a flexible electrode, for example, a conductive body made of flexible or elastic conductive materials such as a conductive silica gel electrode and a conductive rubber electrode, and a conductive silica gel electrode is adopted in the embodiment. The conductive silica gel electrode of this embodiment is embedded in tread face 1, with tread face 1 forms integrative silica gel structure. The hardness of the silica gel material of the tread surface 1 is the same as that of the conductive silica gel material of the conductive silica gel electrode, the hardness of the silica gel is in the range of 40-70 degrees, the resistance value of the conductive silica gel is 0-200 ohms, the thickness of the conductive silica gel is 0.5-3mm, and the area of the conductive silica gel is larger than 2 cm.

Each trampling area is provided with two individual fat electrodes 2, the two individual fat electrodes 2 are a heel electrode and a toe electrode, the heel electrode corresponds to the heel position, the toe electrode corresponds to the toe position, a certain spacing distance is reserved between the two individual fat electrodes 2, and the electrode can be rectangular, elliptical or in other shapes.

The heel electrode is electrically connected with a heel electrode contact 3, the toe electrode is electrically connected with a toe electrode contact 4, and the electrical connection can be fixed electrical connection or relatively movable electrical connection, so that the influence of the electrical connection part on the deformation of the body fat electrode 2 is reduced. The electrode contacts are used to connect a control circuit to provide a sense current to the body fat electrode 2. The position of the body fat electrode 2 far away from the foot treading area is contacted with the electrode contact, namely the position of the electrode contact is arranged at the end part of the body fat electrode 2, the treading area is avoided, and the influence of the electrode contact on the deformation of the treading area is avoided. The electrode contact may be a metal electrode, such as a copper electrode. The electrode contacts may be connected to the body fat electrodes 2 by conductive silicone glue.

And a pressure distribution sensor is arranged between the heel electrode contact 3 and the toe electrode contact 4 and below the tread surface 1. Since the tread 1 is flexible, the pressure differential in the various regions of the foot can be transmitted through the tread 1 to the pressure distribution sensor. The pressure distribution sensor can detect the pressure distribution on a certain area, such as a diaphragm pressure sensor, a film matrix sensor and the like.

In order to improve the measurement accuracy, the pressure distribution sensor adopted in the embodiment includes a piezoresistive film 5, a grid electrode 6 is disposed below the piezoresistive film 5, and the grid electrode 6 detects the resistance change of each part of the piezoresistive film 5.

The piezoresistive film 5 is divided into an upper surface layer and a lower surface layer, the upper surface layer is in contact with the lower surface of the pressure bearing surface, the piezoresistive film 5 is made of an insulating base material and is made of a flexible material and is suitable for printing, materials such as PET (polyethylene terephthalate), PC (polycarbonate) and the like are adopted, the lower surface layer is printed with piezoresistive materials, the piezoresistive materials comprise carbon particle polymers, metal particles, oxides and organic matters which are mixed with one another, and the resistance value of the piezoresistive film changes along with the change of surface pressure. The grid electrode 6 is a data acquisition matrix formed by electrode wires intersected in rows and columns, the intersection of the rows and the columns is not directly connected and called an electrode, the upper surface of the electrode is in contact with piezoresistive material on the lower surface of the piezoresistive film 5, the data acquisition matrix comprises a plurality of groups of electrode pairs, the electrode is divided into a driving electrode and a sensing electrode, the two electrodes appear in pairs, the resistance between the two electrodes is derived from the resistance value of the piezoresistive film between the two electrodes at the position, the driving electrode is used for adding driving voltage, AD sampling is carried out on each group of electrodes through the sensing electrode, and the resistance value between each electrode pair is deduced through calculation by the sampled data; the pressure of each point is calculated according to the characteristics of the piezoresistive material, and finally a frame pressure matrix, namely a pressure distribution, is formed.

The independent pressure distribution sensors are respectively arranged at the treading positions of the left foot and the right foot so as to respectively detect the pressure of the left sole and the right sole, and a whole large pressure distribution sensor can be arranged to detect the pressure of the left sole and the right sole.

The pressure distribution sensor is arranged on the PCB 7, the electrode contact is arranged on the PCB 7, the edge of the piezoresistive film 5 and the PCB 7 are glued and bonded by adopting a 0.5-1cm wide edge, the PCB 7 is arranged on the bearing plate 8, the bearing plate 8 can be hard glass, so that certain hardness is ensured, the accuracy of plantar pressure measurement is ensured, the pressure distribution sensor can be glued and bonded on the weighing plate through 3M glue, and the silica gel treading the surface 1 can wrap the edge of the treading plate. Set up control circuit on the base 9 of bearing plate 8 below, 8 middle parts of bearing plate are provided with walking hole 801, and walking hole 801 corresponds with 7 backs of PCB board, and the line of connecting electrode contact on the PCB and the line of connecting pressure distribution sensor unify and gather the walking hole 801 department at the PCB back on the PCB, and the winding displacement connecting terminal is designed here, and connecting terminal passes through the FPC winding displacement and inserts pressure distribution sensor and four individual fat electrodes 2 into control circuit's main control chip. The lead wires are connected with the resin electrode 2 and the pressure distribution sensor through the wiring hole 801. The base 9 is further provided with a display module 11 and a power supply module 10, the display module 11 is used for displaying measurement data, such as body fat data, and a perspective window 101 is correspondingly arranged on the weighing plate, the PCB plate 7 and the pressure bearing surface so as to be convenient for viewing the displayed data from above.

When the foot is trampled, the body fat electrode 2 is in contact with the sole, so that the body fat of the human body can be measured, and meanwhile, the pressure distribution sensor detects the pressure distribution of the sole, so that synchronous detection is realized, and the measurement is convenient.

Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention. The order of execution of the operations, steps, and the like in the apparatuses and methods shown in the specification and drawings may be implemented in any order as long as the output of the preceding process is not used in the subsequent process, unless otherwise specified. The descriptions using "first", "next", etc. for convenience of description do not imply that they must be performed in this order.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A multifunctional body fat scale comprises a tread surface, wherein an electrode is arranged on the tread surface and is used for providing detection current by electrically contacting with a sole, and the multifunctional body fat scale is characterized in that the tread surface is a flexible body, and the electrode is a flexible electrode; a pressure distribution sensor is arranged below the tread surface, and the foot pressure is transmitted to the pressure distribution sensor through the tread surface.

2. The multi-functional body fat scale of claim 1, wherein the flexible electrode is embedded in a tread surface to form an integral deformation structure with the tread surface.

3. The multi-functional body fat scale of claim 1, wherein the tread surface is the same hardness as the flexible electrode.

4. The multi-functional body fat scale of claim 1, wherein the flexible electrode is electrically connected to an electrode contact at a location remote from where the foot steps, the electrode contact being connected to a control circuit.

5. The multi-functional body fat scale of claim 4, wherein the flexible electrode comprises a heel electrode corresponding to a heel strike position and a toe electrode corresponding to a toe strike position, the heel electrode electrically connected to a heel electrode contact, the toe electrode electrically connected to a toe electrode contact, the pressure distribution sensor located between the heel electrode contact and the toe electrode contact.

6. The multifunctional body fat scale of claim 1, 2, 3, 4 or 5, wherein the tread surface is silicone, and the flexible electrode is conductive silicone.

7. The multi-functional body fat scale of claim 1, wherein the pressure distribution sensor comprises a piezoresistive film, and grid electrodes are disposed under the piezoresistive film, and the grid electrodes detect changes in resistance of each portion of the piezoresistive film.

8. The multifunctional body fat scale of claim 7, wherein independent pressure distribution sensors are provided corresponding to the stepping positions of the left and right feet, respectively.

9. The multifunctional body fat scale of claim 1, wherein a bearing plate is disposed below the pressure distribution sensor, a wire hole is disposed in the middle of the bearing plate, a control circuit is disposed below the bearing plate, and a wire connects the flexible electrode and the pressure distribution sensor via the wire hole.

10. The multifunctional body fat scale of claim 9, wherein the pressure distribution sensor is disposed on a PCB, the PCB is disposed on the bearing plate, a flat cable connecting terminal is disposed at a position corresponding to the wire hole on the back of the PCB, wires connecting the flexible electrodes and wires connecting the pressure distribution sensor on the PCB are collected on the flat cable connecting terminal, and the flat cable connecting terminal connects the pressure distribution sensor and the flexible electrodes to the control circuit via an FPC flat cable.