Eight-electrode body fat scale

Abstract

The utility model discloses a kind of eight-electrode body fat scales, including scale body, handle and optical path amplification structure, scale body is equipped with foot electrode group, handle is detachably connected with scale body, handle is equipped with hand electrode group and display screen;Optical path amplification structure is arranged in scale body, for when handle is installed in scale body, the image of display screen is enlarged and projected to the upper surface of scale body;Eight-electrode body fat scale provided by the utility model is detachably installed in scale body side wall by the optical path amplification structure arranged in scale body, realizes only one small size display screen can be enlarged and projected to scale face above in four-electrode mode, watch handle screen in eight-electrode mode directly one-screen dual-purpose effect, to ensure that complete machine is light and thin, low cost simultaneously thoroughly solve the pain point that existing eight-electrode body fat scale is difficult to read and sight is blocked under different use scene, significantly improve user experience and product competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of body fat scale technology, and in particular to an eight-electrode body fat scale. Background Technology

[0002] With the increasing demand for home health management, eight-electrode body fat scales have gained widespread use because they can simultaneously measure the impedance of the torso and limbs. Existing eight-electrode body fat scales typically consist of a detachable handle and a scale body. The handle integrates four electrodes for the hands and a small display screen, while the scale body integrates four electrodes for the feet. Some products also include a large display screen, or share the same display screen with the handle. However, this structure has significant drawbacks in practical use.

[0003] When the single screen is located on the handle, the handle rests flat on the scale body when the user only needs to perform a four-electrode measurement (without holding the handle). Due to the limited size of the handle, the display screen is usually smaller than 2.5 inches and is about 1.3m–1.7m away from the user's eyes, making it difficult to read the data. Most users have to bend over or squat down to see the data clearly, resulting in a poor experience and being unfriendly to elderly users.

[0004] When a single screen is located on the scale body, and the user is performing an eight-electrode measurement (holding the handle), the handle is raised to waist height. At this time, the display screen on the scale body is either blocked by the handle or out of the user's field of vision, making it impossible to read the data intuitively.

[0005] The dual-screen solution has brought new challenges. Some manufacturers have attempted to place displays on both the scale body and the handle to accommodate four-electrode and eight-electrode scenarios, respectively. While this solution solves the visibility problem, it significantly increases hardware costs, overall thickness, and power consumption. Furthermore, the two screens require two sets of driver circuits and firmware, leading to higher failure rates and maintenance costs.

[0006] It is evident that neither the "single-screen controller," "single-screen scale body," nor the "dual-screen" solution has achieved a balance between "hardware simplification" and "scenario compatibility." A single screen cannot simultaneously meet the dual needs of magnification from a distance and direct viewing from close range, while a dual-screen solution goes against the development trend of low-cost and lightweight consumer electronics products.

[0007] Therefore, the market urgently needs an eight-electrode body fat scale solution that can provide clear and readable information in both four-electrode and eight-electrode modes using only a small display screen. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide an eight-electrode body fat scale that can clearly read measurement data by users in both four-electrode and eight-electrode modes using only a small-sized display screen.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an eight-electrode body fat scale, including...

[0010] The scale body is equipped with a foot electrode assembly;

[0011] The handle is detachably connected to the scale body and is equipped with a hand electrode assembly and a display screen;

[0012] An optical path amplification structure is provided inside the scale body to amplify the image on the display screen and project it onto the upper surface of the scale body when the handle is installed on the scale body.

[0013] Furthermore, the scale body is provided with a light guide channel, and the optical path amplification structure is installed in the light guide channel. The light guide channel includes a first opening and a second opening. The first opening is connected to the side wall of the scale body and is used to connect to the display screen, and the second opening is connected to the upper surface of the scale body.

[0014] Furthermore, the side wall of the scale body is provided with a first magnetic attraction element, and the handle is provided with a second magnetic attraction element for magnetic attraction with the first magnetic attraction element.

[0015] Furthermore, the side wall of the scale body is provided with a positioning protrusion, and the handle is provided with a positioning groove; or, the side wall of the scale body is provided with a positioning groove, and the handle is provided with a positioning protrusion.

[0016] Furthermore, the optical path amplification structure includes a beam splitter and a magnifying lens. The beam splitter is installed in the light guide channel and is used to reflect the light emitted from the display screen to the magnifying lens. The magnifying lens is installed in the light guide channel and is used to amplify the light reflected by the beam splitter.

[0017] Furthermore, the beam splitter is a prism.

[0018] Furthermore, the magnifying lens is a Fresnel lens.

[0019] Furthermore, the number of Fresnel lenses is two, the two Fresnel lenses are bonded together, and the threaded surfaces at the contact points of the two Fresnel lenses have complementary surface shapes.

[0020] Furthermore, the first opening is equipped with a protective lens.

[0021] Furthermore, the scale body is provided with a mounting housing, which is detachably mounted on the scale body, and the light guide channel is formed in the mounting housing.

[0022] The beneficial effects of this utility model are as follows: The eight-electrode body fat scale provided by this utility model achieves the effect of "one screen for two uses" by detachably installing the handle on the side wall of the scale body and setting the optical path amplification structure in the scale body. In the four-electrode mode, the image can be magnified and projected above the scale surface, and in the eight-electrode mode, the screen on the handle can be viewed directly. This completely solves the pain points of existing eight-electrode body fat scales in different usage scenarios, such as difficulty in reading and obstructed vision, while ensuring the overall machine is lightweight and low-cost. This significantly improves the user experience and product competitiveness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the eight-electrode body fat scale according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a schematic cross-sectional view of the eight-electrode body fat scale according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the eight-electrode body fat scale according to Embodiment 2 of this utility model;

[0026] Figure 4 This is a schematic cross-sectional view of the eight-electrode body fat scale according to Embodiment 3 of this utility model;

[0027] Figure 5 This is a schematic cross-sectional view of the eight-electrode body fat scale according to Embodiment 4 of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the eight-electrode body fat scale according to Embodiment 5 of this utility model;

[0029] Figure 7 This is an exploded view of the eight-electrode body fat scale of Embodiment 5 of this utility model.

[0030] Label Explanation:

[0031] 1. Scale body; 11. Scale surface glass; 111. Display area; 12. First magnetic chuck; 13. Light guide channel; 14. First opening; 15. Second opening; 16. Mounting slot; 2. Handle; 21. Display screen; 22. Hand electrode assembly; 23. Second magnetic chuck; 3. Connecting wire; 4. Beam splitter; 5. Magnifying lens; 6. Protective lens; 7. Mounting housing; 71. Cover glass. Detailed Implementation

[0032] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] Please refer to Figures 1 to 7 An eight-electrode body fat scale, including

[0034] The scale body 1 is equipped with a foot electrode assembly;

[0035] The handle 2 is detachably connected to the scale body 1 and is equipped with a hand electrode assembly 22 and a display screen 21;

[0036] An optical path amplification structure is provided inside the scale body 1, which is used to amplify the image of the display screen 21 and project it onto the upper surface of the scale body 1 when the handle 2 is installed on the scale body 1.

[0037] As can be seen from the above description, the beneficial effects of this utility model are as follows: by detachably installing the handle 2 on the side wall of the scale body 1 and setting the optical path amplification structure inside the scale body 1, the "one screen, two uses" effect is achieved, which can magnify and project the image onto the scale surface in the four-electrode mode and directly view the screen of the handle 2 in the eight-electrode mode using only a small-sized display screen 21. This completely solves the pain points of difficulty in reading and obstructed vision in different usage scenarios of existing eight-electrode body fat scales while ensuring the overall machine is lightweight and low-cost, and significantly improves the user experience and product competitiveness.

[0038] Furthermore, the scale body 1 is provided with a light guide channel 13, and the optical path amplification structure is installed in the light guide channel 13. The light guide channel 13 includes a first opening 14 and a second opening 15. The first opening 14 passes through the side wall of the scale body 1 and is used to connect to the display screen 21. The second opening 15 connects to the upper surface of the scale body 1.

[0039] As can be seen from the above description, a closed optical path is formed inside the scale body 1 to prevent stray light from entering and improve image contrast; at the same time, the first and second openings 15 are aligned with the side wall and the scale surface respectively to ensure the alignment accuracy of the optical path and simplify assembly.

[0040] Furthermore, the side wall of the scale body 1 is provided with a first magnetic attraction member 12, and the handle 2 is provided with a second magnetic attraction member 23 for magnetic attraction with the first magnetic attraction member 12.

[0041] As described above, the magnetic attraction enables "one-plug-in" connection, allowing users to install / remove the handle 2 with one hand; the magnetic force can also be used as electrical connection pressure to ensure reliable signal and power conduction.

[0042] Furthermore, the side wall of the scale body 1 is provided with a positioning protrusion, and the handle 2 is provided with a positioning groove; or, the side wall of the scale body 1 is provided with a positioning groove, and the handle 2 is provided with a positioning protrusion.

[0043] As can be seen from the above description, the precise assembly of the handle 2 and the scale body 1 is achieved through the cooperation of the positioning protrusion and the positioning groove, ensuring that the display screen 21 on the handle 2 can be accurately aligned with the first opening 14 of the scale body 1.

[0044] Furthermore, the optical path amplification structure includes a beam splitter 4 and a magnifying lens 5. The beam splitter 4 is installed in the light guide channel 13 and is used to reflect the light emitted from the display screen 21 to the magnifying lens 5. The magnifying lens 5 is installed in the light guide channel 13 and is used to amplify the light reflected by the beam splitter 4.

[0045] As can be seen from the above description, by arranging the beam splitter 4 and the magnifying lens 5 in sequence in the light guide channel 13, the lateral light source is folded 90° and magnified and projected onto the weighing surface, which significantly reduces the thickness of the whole machine.

[0046] Furthermore, the beam splitter 4 is a prism.

[0047] As can be seen from the above description, setting the beam splitter 4 as a prism achieves total internal reflection, eliminates the risk of coating aging, maintains long-term imaging stability, and eliminates the need for assembly and adjustment.

[0048] Furthermore, the magnifying lens 5 is a Fresnel lens.

[0049] As described above, by using Fresnel lenses as magnifying lenses 5, thin magnification is achieved in the side-wall folded optical path, so that a single small screen can be clearly viewed in both four-electrode and eight-electrode modes, taking into account ultra-thinness, light weight and low cost.

[0050] Furthermore, the number of Fresnel lenses is two, the two Fresnel lenses are bonded together, and the threaded surfaces at the contact points of the two Fresnel lenses have complementary surface shapes.

[0051] As described above, by employing a back-to-back bonding structure of two complementary threaded Fresnel lenses, the single Fresnel diffraction ring and dispersion are eliminated, and edge sharpness and brightness uniformity are improved.

[0052] Furthermore, the first opening 14 is provided with a protective lens 6.

[0053] As can be seen from the above description, by adding a protective lens 6 at the first opening 14, the light guide channel 13 is protected from dust, water vapor and scratches, ensuring clear imaging over a long period of time.

[0054] Furthermore, the scale body 1 is provided with a mounting housing 7, which is detachably mounted on the scale body 1, and the light guide channel 13 is formed in the mounting housing 7.

[0055] As can be seen from the above description, by setting a pluggable mounting housing 7 on the scale body 1 and molding the light guide channel 13 inside the housing, modular assembly and rapid after-sales maintenance of the optical path amplification structure are realized, reducing maintenance time and cost.

[0056] Please refer to Figure 1 and Figure 2 The first embodiment of this utility model is as follows: an eight-electrode body fat scale, including a scale body 1, a handle 2, and an optical path amplification structure. The scale body 1 is provided with a foot electrode group. The handle 2 is detachably connected to the scale body 1. The handle 2 is provided with a hand electrode group 22 and a display screen 21. The electronic components in the handle 2 are connected to the electronic components in the scale body 1 through connecting wires 3. The optical path amplification structure is located in the scale body 1 and is used to magnify the image of the display screen 21 and project it onto the upper surface of the scale body 1 when the handle 2 is installed on the scale body 1. The upper surface of the scale body 1 is provided with a scale surface glass 11. The scale surface glass 11 is provided with a foot electrode group. The position of the scale surface glass 11 corresponding to the position of the optical path amplification structure is the display area 111.

[0057] Please combine Figure 1 When the user uses the eight-electrode mode for measurement, the user stands on the glass of the scale body 1 and contacts the foot electrode group (not shown in the figure), holds the handle 2 and contacts the hand electrode group 22 on the handle 2. The measured data is displayed on the display screen 21 on the handle 2. At this time, since the handle 2 is close to the user's eyes, the measurement data on the display screen 21 can be observed intuitively.

[0058] Please combine Figure 2 When the user uses the four-electrode mode for measurement, the user only needs to stand on the glass of the scale body 1 and make contact with the foot electrode group (not shown in the figure), without holding the handle 2. At this time, the handle 2 is installed on the scale body 1, and the measurement data displayed on the display screen 21 on the handle 2 is amplified by the optical path amplification structure and projected onto the display area 111 of the scale surface glass 11. This solves the pain points of existing eight-electrode body fat scales in different usage scenarios, such as difficulty in reading and obstructed vision, and significantly improves the user experience and product competitiveness.

[0059] Specifically, the scale body 1 is provided with a light guide channel 13, and the optical path amplification structure is installed in the light guide channel 13. The light guide channel 13 includes a first opening 14 and a second opening 15. The first opening 14 passes through the side wall of the scale body 1 and is used to connect to the display screen 21. The second opening 15 connects to the upper surface of the scale body 1. The glass of the scale body 1 covering the upper surface of the scale body 1 is a display area 111 corresponding to the position of the second opening 15. The display area 111 is transparent.

[0060] In this embodiment, the side wall of the scale body 1 is provided with a first magnetic suction member 12, and the handle 2 is provided with a second magnetic suction member 23 for magnetic attraction with the first magnetic suction member 12. The magnetic attraction achieves "one-plug-in" engagement, and the user can complete the installation / removal of the handle 2 with one hand. The magnetic attraction force can also be used as electrical connection pressure to ensure reliable conduction of signals and power.

[0061] In addition, in some other embodiments, the handle 2 can also be detached from the scale body 1 by means of detachable connection such as snap-fit ​​connection, bolt connection, or pin connection, which will not be described in detail here.

[0062] Optionally, the side wall of the scale body 1 is provided with a positioning protrusion (not shown) and the handle 2 is provided with a positioning groove (not shown); or, the side wall of the scale body 1 is provided with a positioning groove and the handle 2 is provided with a positioning protrusion. The precise assembly of the handle 2 and the scale body 1 is achieved through the cooperation of the positioning protrusion and the positioning groove, ensuring that the display screen 21 on the handle 2 can be accurately aligned with the first opening 14 of the scale body 1.

[0063] Preferably, the optical path amplification structure includes a beam splitter 4 and a magnifying lens 5. The beam splitter 4 is installed in the light guide channel 13 and is used to reflect the light emitted from the display screen 21 to the magnifying lens 5. The magnifying lens 5 is installed in the light guide channel 13 and is used to amplify the light reflected by the beam splitter 4. By arranging the beam splitter 4 and the magnifying lens 5 in sequence in the light guide channel 13, the lateral light source is folded 90° and magnified and projected onto the weighing surface, significantly reducing the overall thickness of the machine.

[0064] Please combine Figure 2 In this embodiment, the beam splitter 4 is a prism, thus achieving total internal reflection, eliminating the risk of coating aging, maintaining stable imaging over a long period, and requiring no assembly adjustments. In addition, the first opening 14 is provided with a protective lens 6. By adding a protective lens 6 at the first opening 14, the light guide channel 13 is protected against dust, water vapor, and scratches, ensuring clear imaging over a long period. The magnifying lens 5 is a Fresnel lens. Using a Fresnel lens as the magnifying lens 5 achieves thin magnification in the side-wall folded light path, allowing a single small screen to be clearly visible in both four-electrode and eight-electrode modes, taking into account ultra-thinness, light weight, and low cost. The Fresnel lens "compresses" the curved surface of the lens into concentric serrated ridges. Each ridge is equivalent to a part of the lens, collectively refracting light, maintaining the focal length but with an extremely thin thickness.

[0065] Please refer to Figure 3 In Embodiment 2 of this utility model: the number of Fresnel lenses is two, and the two Fresnel lenses are bonded together. The threaded surfaces of the two Fresnel lenses at the contact point have complementary surface shapes. By adopting a back-to-back bonding structure of two complementary threaded Fresnel lenses, the diffraction rings and dispersion of a single Fresnel lens are eliminated, and the edge sharpness and brightness uniformity are improved. Specifically, the threaded surface of one of the Fresnel lenses is coated with a semi-reflective and semi-transparent beam-splitting film. The materials of the two Fresnel lenses can be different, but the refractive indices of the two Fresnel lenses must be the same. Of course, the materials of the two Fresnel lenses can also be the same.

[0066] Please refer to Figure 4In Embodiment 3 of this utility model: the magnifying lens 5 is a convex lens, which can be a single-sided convex lens or a double-sided convex lens (e.g., Figure 4 As shown in the figure, the specific values ​​of the convex lens can be adjusted according to actual usage requirements.

[0067] Please refer to Figure 5 In the fourth embodiment of this utility model: the beam splitter 4 is a plane mirror, and the reflecting plane of the plane mirror forms a certain angle with the light emitting surface of the display screen 21. By adjusting the value of the angle, the light projected by the display screen 21 is reflected by the plane mirror to the magnifying lens 5.

[0068] Please combine Figure 6 and Figure 7 In Embodiment 4 of this utility model: the scale body 1 is provided with a mounting housing 7, the mounting housing 7 is detachably mounted on the scale body 1, the light guide channel 13 is formed in the mounting housing 7, the first opening 14 communicates with the side wall of the mounting housing 7, and the second opening 15 communicates with the upper surface of the mounting housing 7; by setting a mounting housing 7 that can be plugged in as a whole in the scale body 1 and forming the light guide channel 13 in the mounting housing 7, modular assembly and rapid after-sales maintenance of the optical path amplification structure are realized, reducing maintenance time and cost; specifically, the scale body 1 is provided with a mounting groove 16 for mounting the mounting housing 7.

[0069] Optionally, the detachable connection between the mounting housing 7 and the scale body 1 can be achieved through at least one of the following methods: screw connection, bolt connection, magnetic connection, and snap-fit ​​connection. The specific method can be configured according to actual application requirements.

[0070] For details, please refer to... Figure 7 The upper surface of the mounting housing 7 is also provided with a cover glass 71, which covers the second opening 15 and forms a display area 111 corresponding to the position of the magnifying lens 5.

[0071] In summary, the eight-electrode body fat scale provided by this utility model achieves a "one-screen dual-use" effect by detachably installing the handle on the side wall of the scale body and setting an optical path amplification structure inside the scale body. This allows for the use of only a small-sized display screen to project the image onto the scale surface in four-electrode mode and to directly view the handle screen in eight-electrode mode. This completely solves the pain points of existing eight-electrode body fat scales, such as difficulty in reading and obstructed vision in different usage scenarios, while ensuring the overall machine is lightweight and low-cost. This significantly improves the user experience and product competitiveness.

[0072] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An eight-electrode body fat scale, characterized by, include The scale body is equipped with a foot electrode assembly; The handle is detachably connected to the scale body and is equipped with a hand electrode assembly and a display screen; An optical path amplification structure is provided inside the scale body to amplify the image on the display screen and project it onto the upper surface of the scale body when the handle is installed on the scale body.

2. The eight-electrode body fat scale of claim 1, wherein, The scale body is provided with a light guide channel, and the optical path amplification structure is installed in the light guide channel. The light guide channel includes a first opening and a second opening. The first opening is connected to the side wall of the scale body and is used to connect to the display screen. The second opening is connected to the upper surface of the scale body.

3. The eight-electrode body fat scale of claim 2, wherein, The side wall of the scale body is provided with a first magnetic attraction element, and the handle is provided with a second magnetic attraction element for magnetic attraction with the first magnetic attraction element.

4. The eight-electrode body fat scale of claim 2, wherein, The side wall of the scale body is provided with a positioning protrusion, and the handle is provided with a positioning groove; or, the side wall of the scale body is provided with a positioning groove, and the handle is provided with a positioning protrusion.

5. The eight-electrode body fat scale of claim 2, wherein, The optical path amplification structure includes a beam splitter and a magnifying lens. The beam splitter is installed in the light guide channel and is used to reflect the light emitted from the display screen to the magnifying lens. The magnifying lens is installed in the light guide channel and is used to amplify the light reflected by the beam splitter.

6. The eight-electrode body fat scale of claim 5, wherein, The beam splitter is a prism.

7. The eight-electrode body fat scale of claim 5, wherein, The magnifying lens is a Fresnel lens.

8. The eight-electrode body fat scale of claim 7, wherein, The Fresnel lens consists of two pieces, which are bonded together. The threaded surfaces at the contact points of the two Fresnel lenses have complementary surface shapes.

9. The eight-electrode body fat scale of claim 2, wherein, The first opening is equipped with a protective lens.

10. The eight-electrode body fat scale of claim 2, wherein, The scale body is provided with a mounting housing, which is detachably mounted on the scale body, and the light guide channel is formed in the mounting housing.

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