A body fat scale

Abstract

This utility model discloses a body fat scale, including a substrate and a flexible covering member disposed on the substrate. The flexible covering member includes conductive areas and insulating areas. The top surface of the substrate has four conductive areas, and any two adjacent conductive areas are isolated by the insulating areas. The body fat scale has a novel structure. By setting the flexible covering member on the substrate, which includes conductive and insulating areas, the presence of the insulating area significantly reduces or even eliminates the discontinuity between the conductive areas and the top surface of the substrate, thereby providing a smooth and comfortable feel for the user's feet. The flexible covering member replaces the traditional ITO conductive film, avoiding the decrease in conductivity due to wear, which helps to extend the service life of the body fat scale. Moreover, because the flexible covering member itself has a certain cushioning capacity, it can further improve the user's foot feel while ensuring that the electrodes are in close contact with the skin, reducing measurement impedance errors.

Description

Technical Field

[0001] This utility model relates to a body fat scale. Background Technology

[0002] A body fat scale (also known as a bioelectrical impedance analysis scale) is an electronic weighing device based on bioelectrical impedance analysis (BIA), primarily used for home health monitoring. Its core functions include measuring body weight, body fat percentage, and body water percentage.

[0003] In the prior art, some body fat scales have electrodes that protrude from the top surface of the substrate, creating a gap between the edge of the electrodes and the top surface of the substrate, which affects the user's foot feel. Other body fat scales use an ITO conductive film on the substrate instead of electrodes, but the ITO conductive film is prone to wear, affecting the lifespan of the body fat scale. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a body fat scale that provides a good foot feel and a long service life.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a body fat scale, including a substrate and a flexible covering member disposed on the substrate, the flexible covering member including a conductive area and an insulating area, the top surface of the substrate having four conductive areas corresponding to each other, and any two adjacent conductive areas being isolated by the insulating area.

[0006] In one embodiment, the flexible covering includes an insulating substrate layer and a conductive coating disposed on the insulating substrate layer, the conductive coating covering a portion of the insulating substrate layer to form the conductive area.

[0007] In one embodiment, the flexible covering includes an insulating covering and four conductive coverings, wherein any two adjacent conductive coverings are isolated by the insulating covering.

[0008] In one embodiment, the width of the insulating region is 2mm-20mm.

[0009] In one embodiment, the width of the insulating region is 6mm-10mm.

[0010] In one embodiment, the flexible covering includes a top wall covering the top surface of the substrate, a side wall covering the peripheral wall of the substrate, and a bottom wall covering the bottom surface of the substrate. The top wall, side wall, and bottom wall are connected in sequence. The conductive area is disposed on the top wall, and the bottom wall has an electrical contact area that is in communication with the conductive area.

[0011] In one embodiment, the electrical contact area is provided with a metal conductive sheet.

[0012] In one embodiment, the substrate is a transparent plate, the flexible covering is provided with a window, a shielding frame is provided at the window to shield the edge of the window, and a transparent sheet is provided in the hollow area of ​​the shielding frame.

[0013] In one embodiment, the system further includes a sensor and a base located below the substrate. The base contains a main control board electrically connected to the conductive area. The base also contains a mounting seat with a mounting plane and a rectangular frame-shaped protrusion. The three sides of the protrusion are respectively provided with hooks. The mounting plane contacts the top surface of the sensor, and the hooks contact the outer wall and bottom surface of the sensor, respectively. Alternatively, the mounting plane contacts the bottom surface of the sensor, and the hooks contact the outer wall and top surface of the sensor, respectively.

[0014] In one embodiment, the substrate is detachably connected to the base.

[0015] The beneficial effects of this utility model are as follows: The body fat scale has a novel structure. By setting a flexible covering on the substrate, the flexible covering includes a conductive area and an insulating area. The presence of the insulating area greatly reduces or even eliminates the discontinuity between the conductive area and the top surface of the substrate, thereby making the user's feet feel smooth and comfortable. The flexible covering replaces the traditional ITO conductive film, avoiding the decline in conductivity caused by wear, which helps to extend the service life of the body fat scale. Moreover, since the flexible covering itself has a certain cushioning capacity, it can further improve the user's feet feel, while ensuring that the electrodes are in close contact with the skin, reducing measurement impedance errors. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the overall structure of a body fat scale.

[0018] Figure 2 This is a schematic diagram of the base plate in a body fat scale.

[0019] Figure 3 This is a partial cross-sectional view of the base plate in the body fat scale;

[0020] Figure 4 An exploded view of the base of a body fat scale;

[0021] Figure 5A schematic diagram of part of the structure of a body fat scale;

[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the faceplate in a body fat scale.

[0024] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0025] Explanation of icon numbers:

[0026] 1. Base; 11. Mounting base; 111. Mounting surface; 112. Protruding edge; 113. Hook; 12. Front shell; 13. Bottom shell;

[0027] 2. Substrate;

[0028] 3. Flexible covering; 31. Conductive area; 32. Insulating area; 33. Top wall; 34. Side wall; 35. Bottom wall; 36. Window;

[0029] 4. Main control board;

[0030] 5. Metal conductive sheet;

[0031] 6. Obscuring frame;

[0032] 7. Transparent film;

[0033] 8. LCD display screen;

[0034] 9. Sensors;

[0035] 10. Cable reel; 101. Detection handle. Detailed Implementation

[0036] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0040] Furthermore, if the word "and / or" appears throughout the text, it means that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] Example 1

[0043] Please refer to Figures 1 to 8 The first embodiment of this utility model is as follows: a body fat scale, including a base 1, a base plate 2, and a flexible covering 3 disposed on the base plate 2. The base 1 is disposed below the base plate 2. The flexible covering 3 includes a conductive area 31 and an insulating area 32. The top surface of the base plate 2 has four conductive areas 31. Any two adjacent conductive areas 31 are isolated by the insulating area 32. The base 1 is provided with a main control board 4 that is electrically connected to the conductive areas 31. When the forefoot of the user's foot contacts one conductive area 31 and the heel contacts another conductive area 31, a conductive circuit is formed to realize detection.

[0044] In some embodiments, the substrate 2 is a glass plate, and optionally, the flexible covering 3 is fixed to the substrate 2 by hot pressing with glass hot melt adhesive.

[0045] In some embodiments, the flexible covering 3 includes an insulating substrate layer and a conductive coating disposed on the insulating substrate layer. The conductive coating covers a portion of the insulating substrate layer to form the conductive area 31, while the portion of the insulating substrate layer not covered by the conductive coating naturally forms the insulating area 32. Because the conductive coating itself is thin, the height difference (i.e., discontinuity) between the conductive area 31 and the insulating area 32 is very small, thereby improving the user's foot feel. Optionally, the conductive coating is formed by curing conductive ink; the insulating substrate layer is insulating leather (including but not limited to PU leather), insulating rubber, etc.

[0046] In another embodiment, the flexible covering 3 includes an insulating covering and four conductive coverings respectively fixed on the substrate 2. The insulating covering forms the insulating region 32, and the conductive covering forms the conductive region 31. Any two adjacent conductive coverings are separated by the insulating covering. The insulating covering is a one-piece structure or is composed of multiple sub-components. In this embodiment, the insulating covering is a one-piece structure, roughly cross-shaped. In specific products, the insulating covering can also be other shapes, which can be set as needed. In this case, the conductive covering is conductive leather, conductive rubber, etc., and the conductive rubber includes, but is not limited to, conductive silicone. The insulating covering is insulating leather, insulating rubber, etc. As a preferred embodiment, the insulating covering and the conductive covering have the same or similar elastic modulus, and the insulating covering and the conductive covering have the same or similar thickness, which can greatly improve the user's foot feel.

[0047] The width of the insulating region 32 is 2mm-20mm, preferably 6mm-10mm.

[0048] In some embodiments, the flexible covering 3 only covers the top surface of the substrate 2. In this case, the conductive area 31 of the flexible covering 3 is connected to the main control board 4 through wires, metallized holes, laser engraving traces, etc. In other embodiments, the flexible covering 3 includes a top wall 33 covering the top surface of the substrate 2, a side wall 34 covering the peripheral wall of the substrate 2, and a bottom wall 35 covering the bottom surface of the substrate 2. The top wall 33, side wall 34, and bottom wall 35 are connected in sequence. The conductive area 31 is disposed on the top wall 33, and the bottom wall 35 has an electrical contact area that is connected to the conductive area 31.

[0049] To ensure stable conductivity between the electrical contact area and the main control board 4, optionally, the electrical contact area is provided with a metal conductive sheet 5, which is connected to the electrical contact area by conductive adhesive or conductive cloth. Optionally, the base 1 is provided with contacts that make contact with the metal conductive sheet 5, and these contacts are electrically connected to the main control board 4. This design replaces traditional ITO coated glass, reducing costs and avoiding coating wear and failure issues.

[0050] The substrate 2 is a transparent plate, and the flexible covering 3 has a window 36. A shielding frame 6 is provided at the window 36 to cover its edge, and a transparent sheet 7 is provided in the hollow area of ​​the shielding frame 6. The shielding frame 6 can cover the roughness and unevenness of the edge of the window 36 caused by cutting, thus improving aesthetics and durability. In some embodiments, the base 1 has an LCD display screen 8 corresponding to the transparent sheet 7, and the LCD display screen 8 is electrically connected to the main control board 4.

[0051] The body fat scale also includes a sensor 9. The base 1 contains a mounting seat 11, which has a mounting plane 111 and a rectangular frame-shaped protrusion 112. Three sides of the protrusion 112 are provided with hooks 113. The mounting plane 111 contacts the top surface of the sensor 9, and the hooks 113 contact the outer wall and bottom surface of the sensor 9, respectively; or, the mounting plane 111 contacts the bottom surface of the sensor 9, and the hooks 113 contact the outer wall and top surface of the sensor 9, respectively. Specifically, the base 1 includes a connected front shell 12 and a bottom shell 13. When the mounting seat 11 is placed on the front shell 12, the mounting plane 111 contacts the top surface of the sensor 9; when the mounting seat 11 is placed on the bottom shell 13, the mounting plane 111 contacts the bottom surface of the sensor 9. For ease of assembly and disassembly of the base 1, the front shell 12 and the bottom shell 13 are preferably snap-fitted together. The sensor 9 is installed into the mounting base 11 by sliding side. The bottom, side and top surfaces of the sensor 9 are locked by surface contact, avoiding the off-center load error caused by traditional screw fixing, which helps to improve weighing stability and weighing accuracy.

[0052] In one or more embodiments, the base plate 2 is detachably connected to the base 1, which allows the body fat scale to achieve a modular design, thereby further reducing the manufacturing cost and subsequent maintenance cost of the body fat scale.

[0053] Optionally, the base 1 is provided with a winding reel 10, and the winding reel 10 is connected to a detection handle 101 exposed outside the base 1. The detection handle 101 has a conductive part for contacting and communicating with the user's hand.

[0054] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A body fat scale, characterized by: The device includes a substrate and a flexible covering disposed on the substrate. The flexible covering includes conductive regions and insulating regions. The top surface of the substrate has four conductive regions, and any two adjacent conductive regions are isolated by the insulating regions.

2. The body fat scale of claim 1, wherein: The flexible covering includes an insulating substrate layer and a conductive coating disposed on the insulating substrate layer, wherein the conductive coating covers a portion of the insulating substrate layer to form the conductive area.

3. The body fat scale of claim 1, wherein: The flexible covering includes an insulating covering and four conductive coverings, with any two adjacent conductive coverings being isolated by the insulating covering.

4. The body fat scale of claim 1, wherein: The width of the insulation zone is 2mm-20mm.

5. The body fat scale of claim 4, wherein: The width of the insulation zone is 6mm-10mm.

6. The body fat scale of claim 1, wherein: The flexible covering includes a top wall covering the top surface of the substrate, a side wall covering the peripheral wall of the substrate, and a bottom wall covering the bottom surface of the substrate. The top wall, side wall, and bottom wall are connected in sequence. The conductive area is disposed on the top wall, and the bottom wall has an electrical contact area that is in communication with the conductive area.

7. The body fat scale of claim 6, wherein: The electrical contact area is provided with a metal conductive sheet.

8. The body fat scale of claim 1, wherein: The substrate is a transparent plate, the flexible covering is provided with a window, and a shielding frame is provided at the window to block the edge of the window. A transparent sheet is provided in the hollow area of ​​the shielding frame.

9. The body composition scale of claim 1, wherein: It also includes a sensor and a base located below the substrate. The base contains a main control board that is electrically connected to the conductive area. The base also contains a mounting seat with a mounting plane and a rectangular frame-shaped protrusion. The three sides of the protrusion are respectively provided with hooks. The mounting plane contacts the top surface of the sensor, and the hooks contact the outer wall and bottom surface of the sensor, respectively; or, the mounting plane contacts the bottom surface of the sensor, and the hooks contact the outer wall and top surface of the sensor, respectively.

10. The body fat scale of claim 9, wherein: The substrate and the base are detachably connected.

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