Flexible slingshot power line

Abstract

The utility model discloses a flexible slingshot power line, which comprises a power line body, and a first line sleeve and a second line sleeve which are arranged in the power line body, the first line sleeve and the second line sleeve are arranged at an interval, a plurality of electrode lines are arranged in the first line sleeve, and a plurality of power lines are arranged in the second line sleeve. According to the design, the electrode wire and the power line are arranged in the first wire sleeve and the second wire sleeve respectively, and the first wire sleeve and the second wire sleeve are arranged at intervals, so that the proximity degree between wires is effectively reduced, the magnitude of parasitic capacitance is reduced, electrical noise in a circuit is reduced, and the service life of the circuit is prolonged. The influence degree of the skin dryness and humidity on the power line is reduced, so that the body fat data detection is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of power cords, and more specifically to a flexible slingshot power cord. Background Art

[0002] With the progress of society, people are paying more and more attention to their physical health. Body scales can help people obtain body parameters of themselves or multiple user groups such as their family, such as weight, body fat, water, muscle, etc., and effectively monitor the changes in their own body parameters.

[0003] At present, the existing human body scale generally includes a scale body, which is provided with a circuit board, a slingshot line and an electrode sheet. The circuit board and the electrode sheet (one or more of ITO coating, copper foil, aluminum foil and electroplating) are connected by the slingshot line. When a person stands on the weighing panel, the detection electrode contacts the feet of the person, and a certain safety current passes between the feet. The person and the human body scale form a closed AC circuit to measure the body resistance.

[0004] However, the slingshot lines of existing human scales generally use 8 wires in a group, and the 8 wires are arranged in a circle. When current flows through the wires, an electric field will be generated around them. In the circularly arranged wires, due to the close distance between the wires, these electric fields will overlap and interact with each other. This change in the electric field distribution leads to the storage of electric field energy, thereby forming parasitic capacitance. Although there is usually a layer of insulating material between the wires, the insulating layer cannot completely prevent the penetration of electric field lines. The electric field lines will pass through the insulating layer and "leak" from one wire to another. This "leakage" forms a parasitic capacitor. Since this slingshot line has a weak load-carrying capacity and a large parasitic capacitance, when standing on the scale surface and holding the sensing handle, the induction is easily unstable due to the influence of sweat or the dryness and wetness of the hand skin, resulting in unstable body fat detection data. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a flexible slingshot power cord to solve the problem that the existing human body scale has weak load-bearing capacity and large parasitic capacitance of the slingshot cord, resulting in unstable detection data.

[0006] The technical solution of the utility model is as follows: a flexible slingshot power cord, comprising a power cord body and a first wire sleeve and a second wire sleeve arranged in the power cord body, the first wire sleeve and the second wire sleeve are arranged at intervals, a plurality of electrode wires are arranged in the first wire sleeve, and a plurality of power wires are arranged in the second wire sleeve.

[0007] Furthermore, four electrode wires are provided, and the four electrode wires are arranged around the central axis of the first wire sleeve to be distributed in a ring shape, and a wire sheath for fixing the electrode wires is provided between any two adjacent electrode wires.

[0008] Furthermore, a plurality of filling wires are arranged in the first wire sleeve, the plurality of filling wires are distributed in a ring shape in the first wire sleeve, and the plurality of filling wires are located in an encirclement formed by the four electrode wires and the four wire skins.

[0009] Furthermore, the power cord body is oval in shape.

[0010] Furthermore, the length of the power cord body is 7.3 mm to 7.9 mm, and the width of the power cord body is 3.65 mm to 3.95 mm.

[0011] Furthermore, a plurality of signal wires are arranged in the second wire sleeve.

[0012] Furthermore, the filling thread is cotton thread or PP strip.

[0013] The utility model according to the above scheme has the beneficial effect that: the utility model provides a flexible slingshot power cord, including a power cord body and a first wire sleeve and a second wire sleeve arranged in the power cord body, the first wire sleeve and the second wire sleeve are arranged at intervals, a plurality of electrode wires are arranged in the first wire sleeve, and a plurality of power wires are arranged in the second wire sleeve. In this design, by arranging the electrode wires and the power wires in the first wire sleeve and the second wire sleeve respectively, and the first wire sleeve and the second wire sleeve are arranged at intervals, the proximity between the wires is effectively reduced, thereby reducing the size of the parasitic capacitance, reducing the electrical noise in the circuit, reducing the degree of influence of the dryness and humidity of the skin on the power cord, and making the body fat data detection stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of an existing power line;

[0016] Figure 2 This is one of the structural schematic diagrams of a flexible slingshot power cord in an embodiment of the utility model;

[0017] Figure 3 This is a second structural schematic diagram of a flexible slingshot power cord in an embodiment of the utility model.

[0018] In the figure, 1, power cord body; 2, first wire sleeve; 3, second wire sleeve; 4, electrode wire; 5, power cord; 6, wire skin; 7, filling wire; 8, signal wire; L, length of the power cord body; W, width of the power cord body. DETAILED DESCRIPTION

[0019] The following detailed description and drawings of the embodiments of the present invention are used to illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the embodiments described.

[0020] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0021] In current human scales, the slingshot wires (i.e., the wires connecting the scale surface and the sensing handle) are usually arranged in a circular pattern with 8 wires as a group, such as Figure 1 As shown, the eight wires in the slingshot line are four electrode wires 4, two power wires 5 and two signal wires 8. The four electrode wires 4, two power wires 5 and two signal wires 8 are distributed in a ring shape inside the outer sheath, and the outer sheath is made of TPU (thermoplastic polyurethane elastomer) material. This design generates an electric field around the wire when current flows through it. Due to the close proximity between the wires, these electric fields overlap and interact with each other. Specifically, when current flows in the wire, it forms an electric field around the wire, and the electric fields of adjacent wires overlap with each other to form a more complex electric field distribution. This change in electric field distribution leads to the storage of electric field energy, which in turn forms parasitic capacitance. Although there is usually a layer of insulating material between the wires to isolate the wires and reduce the penetration of electric field lines, the insulating layer cannot completely prevent the interaction of electric field lines. The electric field lines will pass through the insulating layer and "leak" from one wire to another. This "leakage" phenomenon is the root cause of parasitic capacitance.

[0022] In the application of human scales, due to the weak load capacity of the slingshot line and the large parasitic capacitance, when the user uses the scale, standing on the scale surface and holding the sensing handle, the sweat of the hand or the change of skin dryness and humidity will affect the electrical connection between the hand and the wire. Due to the existence of parasitic capacitance, this effect will be amplified, resulting in the instability of the sensing signal. This unstable signal will further affect the accuracy of the body fat data when it is transmitted to the body fat detection module, making the body fat detection data unstable.

[0023] Based on this, the present invention provides a flexible slingshot power cord, see Figure 2-3As shown, it includes a power cord body 1 and a first wire sleeve 2 and a second wire sleeve 3 arranged in the power cord body 1, the first wire sleeve 2 and the second wire sleeve 3 are arranged at intervals, a plurality of electrode wires 4 are arranged in the first wire sleeve 2, and a plurality of power cords 5 are arranged in the second wire sleeve 3. In this design, by arranging the electrode wires 4 and the power cord 5 in the first wire sleeve 2 and the second wire sleeve 3 respectively, and the first wire sleeve 2 and the second wire sleeve 3 are arranged at intervals, the proximity between the wires is effectively reduced, thereby reducing the size of the parasitic capacitance, reducing the electrical noise in the circuit, reducing the influence of the dryness and humidity of the skin on the power cord 5, and making the body fat data detection stable and reliable.

[0024] Preferably, four electrode wires 4 are provided, and the four electrode wires 4 are arranged around the central axis of the first wire sleeve 2 to be distributed in a ring shape, and a wire sheath 6 for fixing the electrode wires 4 is provided between any two adjacent electrode wires 4. In this embodiment, the wire sheath 6 is a coreless insulating material.

[0025] Specifically, the four electrode wires 4 and the four wire sheaths 6 are distributed in a ring shape around the central axis of the first wire sleeve 2, forming a stable structure. This design reduces the movement or dislocation of the electrode wires 4 caused by external factors (such as vibration, tension, etc.), thereby improving the structural stability of the entire power cord 5. Secondly, the wire sheath 6 between any two adjacent electrode wires 4 not only isolates the two adjacent electrode wires 4, but also further fixes the position of the electrode wires 4 through its physical properties (such as elasticity), thereby enhancing the structural stability of the power cord 5.

[0026] Preferably, a plurality of filling lines 7 are arranged in the first wire sleeve 2, and the plurality of filling lines 7 are distributed in the first wire sleeve 2 in an annular shape, and the plurality of filling lines 7 are located in an encirclement formed by four electrode wires 4 and four wire skins 6. Specifically, the plurality of filling lines 7 are distributed in an annular shape in an encirclement formed by four electrode wires 4 and four wire skins 6, thereby increasing the volume filling rate in the first wire sleeve 2, reducing the gap in the first wire sleeve 2, and thus enhancing the structural stability of the entire power cord 5. When the first wire sleeve 2 is subjected to external impact or vibration, the filling line 7 can absorb part of the energy to ensure the stability of the structure of the first wire sleeve 2. Secondly, the layout of the plurality of filling lines 7 further stabilizes the position of the electrode wire 4 and the wire skin 6, avoids relative displacement between the electrode wire 4 and the wire skin 6, and ensures that each wire skin 6 is always located between two adjacent electrode wires 4. In this embodiment, the filling line 7 is made of non-conductive material (such as cotton thread or PP strip), which will not have a negative impact on the electrical performance of the electrode wire 4. At the same time, it can also play a role in isolating the electrode wire 4, further reducing the possibility of electrical interference.

[0027] Preferably, the power cord body 1 is in an oblate shape.

[0028] Preferably, the length L of the power cord body is 7.3 mm to 7.9 mm, and the width W of the power cord body is 3.65 mm to 3.95 mm.

[0029] Preferably, a plurality of signal lines 8 are further provided in the second wire sleeve 3. In the present embodiment, two power lines 5 are provided, and two signal lines 8 are also provided. It is worth mentioning that the number of power lines 5 and signal lines 8 is not limited to the number specified in the present embodiment. The power lines 5 can also be 3, 4, 5, or even more. Similarly, the signal lines 8 can also be 3, 4, 5, or even more. Those skilled in the art can select the number of power lines 5 and the number of signal lines 8 according to actual production needs.

[0030] It should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the application product is usually placed when used, or is the orientation or position relationship commonly understood by technical personnel in this field, or is the orientation or position relationship in which the application product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0032] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A flexible slingshot power cord, characterized in that: include: A power cord body (1) and a first wire sleeve (2) and a second wire sleeve (3) arranged in the power cord body (1), wherein the first wire sleeve (2) and the second wire sleeve (3) are arranged at an interval, a plurality of electrode wires (4) are arranged in the first wire sleeve (2), and a plurality of power cords (5) are arranged in the second wire sleeve (3).

2. A flexible slingshot power cord as claimed in claim 1, characterized in that: Four electrode wires (4) are provided, and the four electrode wires (4) are arranged around the central axis of the first wire sleeve (2) to be distributed in a ring shape, and a wire sheath (6) for fixing the electrode wires (4) is provided between any two adjacent electrode wires (4).

3. A flexible slingshot power cord as claimed in claim 2, characterized in that: A plurality of filling wires (7) are arranged in the first wire sleeve (2), the plurality of filling wires (7) are distributed in a ring shape in the first wire sleeve (2), and the plurality of filling wires (7) are located in an encirclement formed by the four electrode wires (4) and the four wire skins (6).

4. A flexible slingshot power cord as claimed in claim 1, characterized in that: The power cord body (1) is in an oblate shape.

5. The flexible slingshot power cord according to claim 1, characterized in that: The length of the power cord body is 7.3 mm to 7.9 mm, and the width of the power cord body is 3.65 mm to 3.95 mm.

6. The flexible slingshot power cord according to claim 1, characterized in that: A plurality of signal wires (8) are also arranged in the second wire sleeve (3).

7. A flexible slingshot power cord as claimed in claim 3, characterized in that: The filling thread (7) is a cotton thread or a PP strip.

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