WO2020223961A1

WO2020223961A1 - Electronic weighing apparatus

Info

Publication number: WO2020223961A1
Application number: PCT/CN2019/086198
Authority: WO
Inventors: 刘嘉
Original assignee: 翰长生物医疗（深圳）有限公司
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-11-12

Abstract

An electronic weighing apparatus, comprising a bearing plate (1), a display assembly (2) provided on the bearing plate (1), a power source assembly (3) provided on the bearing plate (1), a control assembly (4) provided on the bearing plate (1), sensor assemblies (5) provided on the bearing plate (1), and connecting wires provided between the sensor assemblies (5) and the control assembly (4), wherein the bearing plate (1) is provided with wire passing slots (11) for the connecting wires to pass through; and the wire passing slots (11) are provided with accommodating notches (12). Part of each of the connecting wires is bent and placed in the accommodating notch (12), such that the connecting wire is prevented from arching due to the fact that the length of the connecting wire is greater than the length of the wire passing slot (11), thereby realizing the connecting wire to be slightly longer than the wire passing slot (11) and in a relaxed state while the bearing plate (1) is ultrathin, preventing stress from being applied to the sensor assemblies (5), and thus ensuring the precision of the electronic weighing apparatus.

Description

Electronic weighing equipment

Technical field

This solution relates to the field of health monitoring equipment for medical institutions and households, and in particular to an electronic weighing equipment.

Background technique

Electronic weighing equipment has become a necessary medical institution and household health monitoring equipment for modern life; the existing electronic weighing equipment includes a control component and a sensor component, and the sensor component and the control component are connected by wires through a signal. In order to achieve ultra-thin electronic weighing equipment, a wire slot is usually opened on the main body of the electronic weighing equipment for the lead wires to pass through. However, the accuracy of the existing electronic scales is generally low, which affects the user's accurate acquisition of weight information.

technical problem

The purpose of this solution is to provide an electronic weighing device to solve the technical problem of low accuracy of electronic scales in the prior art.

Technical solutions

In order to achieve the above objective, the technical solution adopted by this solution is to provide an electronic weighing device, which includes a bearing plate, a display assembly arranged on the bearing plate, a power supply assembly arranged on the bearing plate, and The control assembly of the board, the sensor assembly arranged on the bearing plate, and the connecting wire arranged between the sensor assembly and the control assembly; the bearing plate is provided with a wire slot for the connecting wire to pass through; The wire passing groove has two opposite inner walls of the wire groove, and at least one of the inner walls of the wire groove is provided with an accommodation notch.

Further, the accommodating notches are provided on the inner walls of the two wire grooves; the accommodating notches on the inner walls of the two wire grooves are symmetrically arranged.

Further, the accommodating notch has a circular arc surface for contact with the connecting wire.

Further, the bearing plate is provided with a magnetic charging port electrically connected to the power supply assembly.

Further, the load-bearing plate is provided with a first installation groove and a second installation groove; the display assembly and the control assembly are both arranged in the first installation groove, and the sensor assembly is arranged in the second installation groove. In the groove; the second installation groove communicates with the first installation groove through the wire passing groove.

Further, the second mounting groove is provided with a crimping plate for pressing the connecting wire, the crimping plate is provided with a first connection through hole, and the bottom of the second installation groove is provided with a first A threaded hole, a first connecting screw is provided between the crimping plate and the bearing plate, the first connecting screw penetrates the first connecting through hole and is threadedly connected with the first threaded hole.

Further, the sensor assembly includes a pressure sensor fixedly installed in the second installation slot, a bracket connected with the bearing plate and having a relief hole, a transmission member located in the relief hole, and The contact pad connected to the transmission member; the side of the transmission member away from the contact pad is connected to the pressure sensor; the contact pad protrudes from the surface of the bearing plate.

Further, the bracket is provided with a first limiting slot, and the contact pad is installed in the first limiting slot; the bottom of the first limiting slot is provided with a second limiting slot; A relief hole is opened at the bottom of the second limiting groove; the transfer member has a transfer connector connected with the contact pad, and the transfer connector is located in the second limiting slot.

Further, the edge of the pressure sensor is provided with a second threaded hole, the bracket is provided with a second connecting through hole, and a second connecting screw is provided between the pressure sensor and the bracket, the second connecting screw Passing through the second connecting through hole and threadedly connecting with the second threaded hole.

Further, it also includes a cover plate for covering the wire passing groove, the cover plate is provided with a third connection through hole, the bearing plate is provided with a third threaded hole; the cover plate and the bearing plate A third connecting screw is arranged therebetween, and the third connecting screw penetrates the third connecting through hole and is threadedly connected with the third threaded hole.

Beneficial effect

After the connecting wire is welded to the corresponding parts on the sensor assembly and the control assembly, insert the connecting wire into the wire slot, and then bend part of the connecting wire into the accommodating notch on the inner wall of the wire slot to avoid connecting the wire The arching situation that occurs because the length is greater than the length of the cable trough realizes that while the thickness of the load-bearing plate is ultra-thin, the connecting wire is slightly longer than the length of the cable trough and is in a relaxed state, avoiding stress on the sensor assembly, thereby ensuring Improve the accuracy of electronic weighing equipment.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of this solution, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the solution. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Figure 1 is an exploded view of the electronic weighing device in an embodiment of the scheme;

Figure 2 is a partial enlarged view of A in Figure 1;

Figure 3 is an exploded view of the sensor assembly in Figure 1;

FIG. 4 is a schematic structural diagram of the electronic weighing device in an embodiment of the solution from a first perspective;

Figure 5 is a cross-sectional view of the sensor assembly in the embodiment of the solution;

6 is a schematic structural diagram of the electronic weighing device in the embodiment of the solution from a second perspective;

FIG. 7 is a schematic structural diagram of the electronic weighing device in the embodiment of the solution from a third perspective;

In the picture:

1. Load-bearing plate; 11. Wire trough; 111. Inner wall of wire trough; 12. Accommodating gap; 121. Arc surface; 13. Magnetic charging port; 14. First installation slot; 15. Second installation slot; 16. The third installation slot;

2. Display components;

3. Power supply components; 31. Battery pack; 32. Battery cover;

4. Control components; 41. Circuit board; 42, main control cover;

5. Sensor component; 51, pressure sensor; 511, second threaded hole; 52, bracket; 521, relief hole; 522, first limit slot; 523, second limit slot; 53, transfer piece; 531, Transfer connector; 54, contact gasket;

6. Crimping board; 61. The first connection through hole;

7. Cover plate; 71. The third connection through hole;

8. Speaker; 9. Cover film.

Embodiments of the invention

In order to make the technical problems, technical solutions, and beneficial effects to be solved by this solution clearer, the following describes the solution in further detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the solution, and are not used to limit the solution.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "Bottom", "Inner", "Outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the solution and simplifying the description, but not indicating or implying the pointed device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the solution.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this solution, "multiple" means two or more, unless otherwise clearly defined.

The implementation of this solution will be described in detail below in conjunction with specific embodiments.

After repeated research and testing, it is found that the main reason for the low accuracy of the electronic weighing equipment is: in order to facilitate the welding of the connecting wire with the corresponding parts on the sensor assembly 5 and the control assembly 4, if the length of the connecting wire is set equal to the wire slot 11 length (that is, equal to the linear distance between the sensor assembly 5 and the control assembly 4), the connecting wire has a metal wire, which makes the connecting wire easy to tighten after welding, and then exerts stress on the sensor assembly 5. The stress on the sensor assembly 5 results in low accuracy of the electronic weighing equipment; further in order to facilitate the welding of the connecting wires with the corresponding components on the sensor assembly 5 and the control assembly 4, the length of the connecting wires is set to be greater than the wire trough 11 The length (that is, greater than the linear distance between the sensor assembly 5 and the control assembly 4), the connecting wire has a metal wire, so that the connecting wire is easy to arch after welding, so that the arched connecting wire is likely to lift the cover film 9 , So that it exceeds the height of the contact pad 54 to directly contact the ground, which in turn leads to low accuracy of the electronic weighing device. In order to solve the technical problem of low accuracy of electronic weighing equipment, this solution provides an electronic weighing device. The implementation of this solution will be described in detail below with reference to specific embodiments.

As shown in Figures 1-7, the embodiment of the solution proposes an electronic weighing device, which includes a load-bearing plate 1, a display assembly 2 arranged on the load-bearing plate 1, a power supply assembly 3 arranged on the load-bearing board 1, and The control assembly 4 of the board 1, the sensor assembly 5 arranged on the bearing plate 1, and the connecting wires arranged between the sensor assembly 5 and the control assembly 4; the bearing plate 1 is provided with a wire slot 11 for the connecting wires to pass through; The groove 11 has two opposite inner walls 111 of the wire groove, and at least one inner wall 111 of the wire groove is provided with a receiving notch 12.

In the embodiment of this scheme, when the electronic weighing device is assembled, after the connecting wires are welded to the corresponding components on the sensor assembly 5 and the control assembly 4, the connecting wires are inserted into the wire trough 11, because the length of the connecting wires needs to be greater than The length of the wire slot 11, so the connecting wire is arched and the cover film 9 is pushed up to exceed the height of the contact pad 54 to directly contact the ground, which leads to the low accuracy of the electronic weighing equipment; Part of the position is bent and placed into the accommodating notch 12 opened on the inner wall 111 of the wire slot, to avoid arching of the connecting wire because the length is greater than the length of the wire slot 11, and to realize that the connecting wire is slightly longer than the length of the wire slot 11. In a relaxed state, stress is not applied to the sensor assembly 5, and the cover film 9 is prevented from directly contacting the ground beyond the height of the contact pad 54, thereby ensuring the accuracy of the electronic weighing device. In addition, since the connecting wires will not be arched, it is convenient to perform the next assembly steps, such as covering the covering film 9. The cover film 9 can cover the wire-passing groove 11 on the load-bearing plate 1 and other areas that easily affect the appearance or easily enter dust and water, so as to achieve the aesthetics, waterproof performance and dustproof performance of the electronic weighing device.

Further, please refer to Figures 1 to 2, as another specific implementation of the electronic weighing device provided by this solution, two wire groove inner walls 111 are provided with accommodating notches 12; on the two wire groove inner walls 111 The accommodating gap 12 is symmetrically arranged. When the electronic weighing equipment is assembled, after the connecting wire is welded to the corresponding parts on the sensor assembly 5 and the control assembly 4, the connecting wire will have a certain initial deflection tendency. Therefore, the accommodating gap 12 is set symmetrically. The assembly can be based on the connection wire The initial deflection trend selects that the connecting wire is partially bent and placed in the accommodation gap 12 corresponding to the initial deflection trend of the connecting wire.

Further, referring to FIG. 2, as another specific implementation of the electronic weighing device provided by this solution, the accommodating notch 12 has an arc surface 121 for contacting with the connecting wire. Since there is a metal wire inside the connecting wire, the connecting wire has a certain curvature when bent. In order to facilitate the stable placement of the connecting wire in the accommodating notch 12, a circle for contact with the connecting wire is provided in the accommodating notch 12 The curved surface 121 prevents the surface of the accommodating notch 12 from exerting force on the bent part of the connecting wire, and further ensuring that the connecting wire will not exert stress on the sensor assembly 5 and affect the accuracy of the electronic weighing device, thereby realizing the high performance of the electronic weighing device. Accuracy.

Further, referring to FIG. 1, as another specific implementation of the electronic weighing device provided by this solution, the bearing plate 1 is provided with a magnetic charging port 13 electrically connected to the power supply assembly 3. The magnetic charging port 13 can realize quick connection during charging, and can effectively improve the waterproof performance of the electronic weighing device compared with the traditional charging port.

Further, please refer to FIG. 1. As another specific implementation of the electronic weighing device provided by this solution, the bearing plate 1 is provided with a first installation slot 14 and a second installation slot 15; both the display assembly 2 and the control assembly 4 It is arranged in the first installation groove 14, and the sensor assembly 5 is arranged in the second installation groove 15; the second installation groove 15 communicates with the first installation groove 14 through the wire passing groove 11. The load-bearing plate 1 is the main body of load-bearing and installation and is an integrated structure, which effectively reduces the thickness of the electronic weighing device compared to the method of installing upper and lower shells in the prior art; the control assembly 4 and the display assembly 2 are both set on the load-bearing In the first installation slot 14 opened in the board 1, neither the control assembly 4 nor the display assembly 2 will protrude from the surface of the load-bearing board 1, further reducing the thickness of the electronic weighing device; most of the structure of the pressure sensor assembly 5 is located in the second In the second installation slot 15, only the part of the structure for contact with the ground protrudes from the surface of the bearing plate 1, that is, the thickness of the electronic weighing device is more effectively reduced, and the electronic weighing device is ultra-thin.

Further, referring to FIG. 1, as another specific implementation of the electronic weighing device provided by this solution, the second installation slot 15 is provided with a crimping plate 6 for holding the connecting wires, and the crimping plate 6 is provided with The first connecting through hole 61, the bottom of the second mounting groove 15 is provided with a first threaded hole, a first connecting screw is arranged between the crimping plate 6 and the bearing plate 1, and the first connecting screw penetrates the first connecting through hole 61 And threadedly connected with the first threaded hole. The welding position of the connecting wire and the corresponding component on the sensor assembly 5 is located in the second installation slot 15. In order to avoid disconnection caused by the loosening of the welding point, a crimping plate 6 for pressing the connecting wire is provided, and the first The connecting screw locks the crimping plate 6 to adjust the force applied by the crimping plate 6 to the connecting wire to ensure that the end of the connecting wire will not loosen and avoid the welding point from breaking during use.

Further, referring to FIGS. 1 and 4, as another specific embodiment of the electronic weighing device provided by this solution, the sensor assembly 5 includes a pressure sensor 51 fixedly installed in the second mounting groove 15 and a bearing plate 1 The bracket 52 that is connected and has a relief hole 521, a transmission member 53 located in the relief hole 521, and a contact pad 54 connected to the transmission member 53; the side of the transmission member 53 away from the contact pad 54 is connected to the pressure sensor 51 ; The contact pad 54 protrudes from the surface of the bearing plate 1. When in use, the contact pad 54 is in direct contact with the ground, and the contact pad 54 transfers the force to the sheet resistance on the pressure sensor 51 through the transmission member 53 so that the sheet resistance is deformed, so that the pressure sensor 51 senses the ground to the electronics. The reaction force of the weighing device is used to obtain the gravity of the object on the electronic weighing device.

Further, please refer to Figure 1, Figure 3 and Figure 5, as another specific implementation of the electronic weighing equipment provided by this solution, the bracket 52 is provided with a first limiting groove 522, and the contact pad 54 is mounted on the first In the limiting slot 522; the bottom of the first limiting slot 522 is provided with a second limiting slot 523; the relief hole 521 is opened at the bottom of the second limiting slot 523; the transfer member 53 has a contact pad 54 connected to The transfer connector 531 is located in the second limiting slot 523. The transfer member 53 has a transfer connector 531 connected to the contact pad 54, the transfer connector 531 is located in the second limiting slot 523, and the relief hole 521 is opened at the bottom of the second limiting slot 523. When the gravity of the object on the electronic weighing equipment is too large, the pressure sensor 51 is deformed too much, the sensor 51 is resisted by the bottom of the bearing plate 1 (refer to Figure 5), so the sensor 51 cannot continue to move relative to the bearing plate 1 to avoid The deformation of the pressure sensor 51 exceeds its tolerable range, that is, to avoid damage to the electronic weighing device during use.

Further, referring to FIG. 3, as another specific implementation of the electronic weighing device provided by this solution, a second threaded hole 511 is formed on the edge of the pressure sensor 51, and a second connection through hole is formed on the bracket 52. The pressure sensor A second connecting screw is provided between the bracket 51 and the bracket 52. The second connecting screw penetrates the second connecting through hole and is threadedly connected with the second threaded hole 511. That is, the edge of the pressure sensor 51 is fixedly connected to the bracket 52 by the second connecting screw, and the edge of the pressure sensor 51 is not an area where the resistance of the pressure sensor is deformed, and will not affect the resistance of the pressure sensor. Since the pressure sensor 51 adopts the rigid fixing method of the second connecting screw, it can ensure that the contact pad 54 directly transmits the force to the pressure sensor 51 through the transmission member 53, which can further improve The accuracy of the pressure sensor 51.

Further, please refer to FIG. 1, as another specific implementation of the electronic weighing device provided by this solution, it further includes a cover plate 7 for covering the wire groove 11, and the cover plate 7 is provided with a third connection through hole 71 The bearing plate 1 is provided with a third threaded hole; a third connecting screw is provided between the cover plate 7 and the bearing plate 1, and the third connecting screw penetrates the third connecting through hole 71 and is threadedly connected with the third threaded hole.

Further, please refer to FIG. 1. As another specific implementation of the electronic weighing device provided by this solution, the bearing plate 1 is provided with a third installation slot 16, and the power supply assembly 3 is located in the third installation slot 16; the power supply assembly 3 It includes a battery pack 31 located in the third installation slot 16 and a battery cover 32 connected to the bearing plate 1 and abutting the battery pack 31. The power supply assembly 3 is installed in the third installation slot 16 so that the power supply assembly 3 will not protrude from the surface of the load-bearing plate 1, further realizing the ultra-thinness of the electronic weighing device.

Further, please refer to FIG. 1. As another specific implementation of the electronic weighing device provided by this solution, the control assembly 4 includes a main control cover 42 that is clamped with the bearing plate 1 and a main control cover 42 located in the first installation slot 14. Circuit board 41; The circuit board 41 has a wireless module. The circuit board 41 has related circuit patterns to realize the functions of signal receiving, processing and sending. The main control cover 42 is connected to the bearing board 1 to realize the installation of the circuit board 41 in the first installation slot 14. The wireless module on the circuit board 41 is used to transmit the measured weight information such as weight to the mobile terminal paired with it, so that the user can observe and save the weight information such as weight.

Further, please refer to FIG. 1. As another specific embodiment of the electronic weighing device provided by this solution, the load-bearing plate 1 is an aluminum alloy plate or a carbon fiber plate. Specifically, the load-bearing plate 1 is preferably a high-strength aluminum alloy plate, which can realize a smaller thickness to carry a larger weight, and further reduces the thickness of the electronic weighing device; of course, in some embodiments of this solution, Carbon fiber plates and other high-strength alloy plates can be used as load-bearing plates 1. When the load-bearing plate 1 is an aluminum alloy plate, it adopts high-precision numerical control processing, and the accuracy and consistency of the size are much higher than that of plastic, thereby realizing that the electronic weighing equipment has a higher performance than the plastic weighing device in the prior art Accuracy.

Further, please refer to FIG. 1, as another specific implementation of the electronic weighing device provided by this solution, it further includes a speaker 8 connected to the control component 4 in signal. Specifically, the control component 4 can transmit the weight data, such as weight, detected by the pressure sensor component 5 to the user via the speaker 8 as a sound signal.

It is understandable that the solution in another specific implementation manner may be an achievable implementation solution that is further improved on the basis of other embodiments.

Obviously, the above-mentioned embodiments of this solution are merely examples for clearly illustrating this solution, and are not intended to limit the implementation of this solution. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principles of this scheme shall be included in the protection scope of the claims of this scheme.

Claims

An electronic weighing device, characterized in that it comprises a load-bearing plate, a display assembly arranged on the load-bearing plate, a power supply assembly arranged on the load-bearing plate, a control assembly arranged on the load-bearing plate, and a display assembly arranged on the load-bearing plate A sensor assembly and a connecting wire arranged between the sensor assembly and the control assembly; the load-bearing plate is provided with a wire passing groove for the connecting wire to pass through; the wire passing groove has two opposite wire grooves On the inner wall, at least one of the inner walls of the wire groove is provided with an accommodation notch.
The electronic weighing device according to claim 1, wherein the accommodating notches are provided on the inner walls of the two wire grooves; the accommodating notches on the inner walls of the two wire grooves are symmetrically arranged.
The electronic weighing device according to claim 1, wherein the accommodating notch has an arc surface for contact with the connecting wire.
The electronic weighing device according to claim 1, wherein the bearing plate is provided with a magnetic charging port electrically connected to the power supply assembly.
The electronic weighing device according to claim 1, wherein the load-bearing plate is provided with a first installation slot and a second installation slot; the display assembly and the control assembly are both installed in the first installation slot Inside, the sensor assembly is arranged in the second installation groove; the second installation groove communicates with the first installation groove through the wire passing groove.
The electronic weighing device according to claim 5, wherein a crimping plate for pressing the connecting wire is provided in the second installation slot, and the crimping plate is provided with a first connection through hole, The bottom of the second mounting groove is provided with a first threaded hole, a first connecting screw is provided between the crimping plate and the bearing plate, and the first connecting screw penetrates the first connecting through hole and Threaded connection with the first threaded hole.
The electronic weighing device according to claim 5, wherein the sensor assembly comprises a pressure sensor fixedly installed in the second mounting slot, a bracket connected to the bearing plate and having a vacant hole, and The transmission member in the relief hole and the contact pad connected with the transmission member; the side of the transmission member away from the contact pad is connected with the pressure sensor; the contact pad protrudes The surface of the bearing plate.
The electronic weighing device according to claim 7, wherein the bracket is provided with a first limiting slot, and the contact pad is installed in the first limiting slot; the first limiting slot The bottom of the groove is provided with a second limiting groove; the relief hole is opened at the bottom of the second limiting groove; the transfer member has a transfer connector connected to the contact pad, the transfer connector Located in the second limiting slot.
The electronic weighing device according to claim 7, wherein the edge of the pressure sensor is provided with a second threaded hole, the bracket is provided with a second connecting through hole, and the pressure sensor is between the pressure sensor and the bracket. A second connecting screw is provided, and the second connecting screw penetrates the second connecting through hole and is threadedly connected with the second threaded hole.
The electronic weighing device according to claim 1, wherein the load-bearing plate is provided with a third installation slot, the power supply assembly is located in the third installation slot; the power supply assembly includes a third installation slot The battery pack in the installation slot and the battery cover connected with the bearing plate and abutted with the battery pack.
The electronic weighing device according to claim 5, wherein the control assembly comprises a main control cover that is clamped with the load-bearing board, and a circuit board located in the first mounting slot; the circuit board There is a wireless module on it.
The electronic weighing device according to claim 1, wherein the load-bearing plate is an aluminum alloy plate or a carbon fiber plate.
The electronic weighing device according to claim 1, further comprising a loudspeaker signally connected to the control component.