Electronic scale

Abstract

The utility model provides an electronic scale which comprises a pressure sensor, a base and a top cover, the pressure sensor is provided with a first through hole, the base is provided with an accommodating groove and a mounting column, the accommodating groove accommodates the pressure sensor, the accommodating groove is internally provided with a first positioning hole, and the mounting column sequentially penetrates through the first positioning hole and the first through hole. The pressure sensor is fixed in the containing groove, and the top cover is installed on the base. Compared with the prior art, in the embodiment of the utility model, the accommodating groove is arranged on the base and can be integrally formed with the base, the accommodating groove can be used as a supporting platform, and the pressure sensor can be positioned by directly placing the pressure sensor in the accommodating groove without installing the supporting platform on the base and then installing the pressure sensor; and the operation steps are simplified. And meanwhile, the accommodating groove is matched with the mounting column and the through hole in the pressure sensor, so that the pressure sensor can be accurately positioned, and the assembly accuracy can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of weight measuring devices, in particular to an electronic scale. Background Art

[0002] An electronic scale is an electronic device used to weigh objects. Its main components include a pressure sensor (such as a strain gauge or capacitive sensor) and a digital display (such as a display). When an object is placed on the scale, the pressure sensor detects the change in weight and converts this weight change into an electrical signal. This signal is then processed by a built-in microprocessor and transmitted to the display, where the object's weight is displayed.

[0003] The pressure sensor is arranged inside the electronic scale. Specifically, the pressure sensor is installed on a supporting platform, and the supporting platform is arranged in the base of the electronic scale. After the pressure sensor is installed, a top cover is sealed on the base to complete the installation.

[0004] However, this type of electronic scale has a complex structure, requires multiple steps to assemble, and is cumbersome to operate. Utility Model Content

[0005] The embodiment of the utility model aims to provide an electronic scale to solve the problem of complicated assembly operation of electronic scales in the prior art.

[0006] In order to solve the above technical problems, in a first aspect, the utility model provides an electronic scale, comprising:

[0007] A pressure sensor is provided with a first through hole;

[0008] A base, provided with a receiving groove and a mounting post, the receiving groove receiving the pressure sensor, a first positioning hole being opened on the bottom groove wall of the receiving groove, the mounting post being sequentially passed through the first positioning hole and the first through hole to fix the pressure sensor in the receiving groove; and

[0009] The top cover is installed on the base.

[0010] Optionally, a second positioning hole is further provided on the base, and the second positioning hole and the first positioning hole are respectively provided at opposite ends of the base, and the first through hole and the second through hole are respectively provided at both ends of the pressure sensor, and the first through hole is aligned with the first positioning hole, and the second through hole is aligned with the second positioning hole.

[0011] Optionally, a notch is provided on a side wall of the receiving groove, one end of the pressure sensor is installed in the receiving groove through the first positioning hole, and the other end extends from the notch and is fixed to the base.

[0012] Optionally, a mounting groove is provided on the top cover, and the bottom groove wall of the mounting groove and the bottom groove wall of the receiving groove abut against the top surface and the bottom surface of the pressure sensor respectively, so as to limit the pressure sensor in the vertical direction.

[0013] Optionally, the side groove walls of the installation groove and the side groove walls of the receiving groove are fitted to the side surfaces of the pressure sensor to limit the pressure sensor in the horizontal direction.

[0014] Optionally, a portion of a side groove wall of the installation groove close to the second positioning hole extends in a vertical direction to clamp the other end of the pressure sensor relative to the receiving groove into the installation groove.

[0015] Optionally, the mounting groove is provided with a bolt sleeve, and the bolt sleeve is passed through the second through hole of the pressure sensor to connect the pressure sensor and the top cover.

[0016] Optionally, a bolt is further included, and the bolt is passed through the second positioning hole of the base and arranged in the bolt sleeve to connect the base, the pressure sensor and the top cover.

[0017] Optionally, a boss is provided in the receiving groove, the first positioning hole is opened on the boss, and the boss abuts against the bottom of the pressure sensor for supporting the pressure sensor.

[0018] Optionally, a side groove wall of the receiving groove is provided with a clearance opening, and the clearance opening is used to accommodate the wire of the pressure sensor.

[0019] Compared to the prior art, in this embodiment, a receiving groove is provided on the base, and the receiving groove can be integrally formed with the base. The receiving groove can also be used as a support platform. The pressure sensor can be positioned by simply placing it in the receiving groove, eliminating the need to install the support platform on the base and then install the pressure sensor, thus streamlining the operation steps. Furthermore, the receiving groove, in conjunction with the mounting post and the through-hole on the pressure sensor, can precisely position the pressure sensor, thereby improving assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or several embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 A three-dimensional diagram of an electronic scale provided in one embodiment of the present application;

[0022] Figure 2 for Figure 1 Exploded diagram of the electronic scale shown;

[0023] Figure 3 for Figure 1 A structural diagram of the base of the electronic scale shown;

[0024] Figure 4 for Figure 1 The schematic diagram of the structure of the electronic scale shown in the figure, wherein the top cover of the electronic scale is omitted;

[0025] Figure 5 for Figure 1 A schematic structural diagram of the top cover of the electronic scale shown;

[0026] Figure 6 for Figure 1 The cross-sectional structural diagram of the electronic scale shown in FIG.

[0027] The reference numerals are as follows:

[0028] 10. Top cover; 110. Mounting slot; 111. Side wall of the mounting slot; 112. Bottom wall of the mounting slot; 120. Bolt sleeve; 130. Socket;

[0029] 20. Base; 210. Receiving slot; 211. Receiving slot side wall; 212. Boss; 213. First positioning hole; 214. Relief opening; 215. Mounting column; 220. Second positioning hole; 221. Bolt; 230. Power module slot; 240. Heat sink; 250. Cable routing socket; 260. Plug;

[0030] 30. Pressure sensor; 310. Sensing portion; 320. First through hole; 330. Second through hole;

[0031] 40. Display panel;

[0032] 50. Power module;

[0033] 60. Control panel;

[0034] 70. Display processor. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present invention, the present invention is described in more detail in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention. In addition, the terms "first", "second" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] Please also refer to Figure 1 and Figure 2 , Figure 1 This is a three-dimensional diagram of an electronic scale provided in one embodiment of the present application. Figure 2 for Figure 1 The electronic scale is shown in an exploded diagram. The electronic scale includes a top cover 10, a base 20, and a pressure sensor 30. The pressure sensor 30 has a first through-hole 320. The base 20 is provided with a receiving groove 210 and a mounting post 215. The receiving groove 210 is used to accommodate the pressure sensor 30. The receiving groove 210 also has a first positioning hole 213. The mounting post 215 is sequentially inserted through the first positioning hole 213 and the first through-hole 320 to secure the pressure sensor 30 within the receiving groove 210. The top cover 10 is mounted on the base 20.

[0038] Compared to the prior art, which requires first installing a support platform on the base 20, then installing the pressure sensor 30 on the support platform, and then precisely fine-tuning the position of the pressure sensor 30, in the embodiment of the present application, the receiving groove 210 can be integrally formed with the base 20. Since the receiving groove 210 is provided on the base 20, there is no need to install the receiving groove 210 separately, and the position of the receiving groove 210 is already fixed. When the pressure sensor 30 is installed in the receiving groove 210, the pressure sensor 30 is already in the installed position and the positioning is completed without fine-tuning the position. Therefore, the overall operation is simpler and the assembly accuracy is higher.

[0039] Specifically, the top cover 10 and the base 20 together form a closed accommodating cavity. A pressure sensor 30, a power module 50, a control panel 60, and a display processor 70 are also disposed in the accommodating cavity between the top cover 10 and the base 20. The top cover 10 and the base 20 protect the pressure sensor 30, the power module 50, the control panel 60, and the display processor 70 in the accommodating cavity. The pressure sensor 30 is attached to the underside of the top cover 10. When a heavy object is placed on the top cover 10 of the electronic scale, the pressure sensor 30 detects pressure changes at the top cover 10 and converts the pressure changes into electrical signals.

[0040] The base 20 is provided with a receiving groove 210 to accommodate the pressure sensor 30, and the pressure sensor 30 can be positioned and installed at the same time. The display panel 40 is installed on the base 20, and the pressure sensor 30 is connected to the display panel 40 for communication so as to send an electrical signal to the display panel 40, which is processed by the display panel 40 to display the mass corresponding to the weight. The pressure sensor 30 is electrically connected to the power module 50 and the control panel 60 through wires respectively. The power module 50 is also electrically connected to the control panel 60 and the display processor 70 to provide electrical energy thereto. A sensing portion 310 is provided on the top of the pressure sensor 30, and the sensing portion 310 is attached to the lower side of the top cover 10 to detect pressure changes on the top cover 10. A first through hole 320 and a second through hole 330 are also provided at both ends of the pressure sensor 30, wherein the first through hole 320 is provided on one side of the pressure sensor 30, and the second through hole 330 is provided on the other side of the pressure sensor 30.

[0041] In one embodiment, the pressure sensor 30, the power module 50, the control panel 60 and the display processor 70 can be first installed on the base 20, and then the circuits are connected. Then, the top cover 10 is placed on the base 20, and finally, the mounting posts 215, the bolts 221 and other positioning screws are used to complete the connection between the top cover 10 and the base 20, so that the pressure sensor 30 is clamped between the top cover 10 and the base 20, completing the assembly of the electronic scale.

[0042] Please refer to Figure 2 and Figure 3 , Figure 3 for Figure 1The schematic diagram of the structure of the base of the electronic scale shown in the figure. A receiving groove 210 is provided on the base 20. The receiving groove 210 is provided at one end of the base 20 in the horizontal direction and is used to accommodate one end of the pressure sensor 30. Specifically, the receiving groove 210 includes three vertically connected side groove walls 211. The three side groove walls 211 and the base 20 together form a semi-enclosed space with a notch on one side and an open top. Among them, the distance between the two opposite side groove walls 211 (i.e., the groove width) is approximately equal to the width of the pressure sensor 30, so that the pressure sensor 30 can be just clamped in the receiving groove 210. At this time, the two opposite side groove walls 211 can limit the pressure sensor 30 in a horizontal direction. The other side groove wall 211 just abuts against the side of the pressure sensor 30 to limit the pressure sensor 30 from another vertical horizontal direction, thereby limiting the movement of the pressure sensor 30 in the horizontal direction and ensuring that the pressure sensor 30 is in a preset installation position.

[0043] A boss 212 is also provided within the receiving groove 210 to support the bottom of the pressure sensor 30. Specifically, the boss 212 is cylindrical in shape, with a first positioning hole 213 defined in its center. The first positioning hole 213 is aligned with the first through-hole 320 of the predetermined mounting position of the pressure sensor 30. This allows the mounting post 215 to pass through the first positioning hole 213 and then into the first through-hole 320 of the pressure sensor 30, thereby connecting the pressure sensor 30 within the receiving groove 210 to the base 20.

[0044] In some embodiments, a wire is provided on the side of the pressure sensor 30 for connecting to the control panel 60 and the power module 50. Therefore, a clearance opening 214 is further provided on one side of the slot wall 211 to allow the wire of the pressure sensor 30 to pass through the clearance opening 214 and connect to the control panel 60 and the power module 50 outside the receiving slot 210.

[0045] A second positioning hole 220 is provided on the other side of the base 20 relative to the receiving groove 210. The second positioning hole 220 is used to pass a bolt 221 so that the other end of the pressure sensor 30 relative to the receiving groove 210 is also connected to the base 20, thereby improving the overall stability of the connection between the pressure sensor 30 and the base 20. Specifically, the second positioning hole 220 and the first positioning hole 213 are respectively provided at opposite ends of the base 20. The two ends of the pressure sensor 30 are respectively provided with a first through hole 320 and a second through hole 330. The first through hole 320 is aligned with the first positioning hole 213, and the second through hole 330 is aligned with the second positioning hole 220. In addition to cooperating with the bolt 221, the second positioning hole 220 also needs to cooperate with the top cover 10 to achieve the connection and coordination among the base 20, the top cover 10 and the pressure sensor 30. The details will be described in detail later and will not be introduced here.

[0046] The base 20 is provided with a power module slot 230 for snapping the power module 50 into the slot. Furthermore, the base 20 is provided with a heat sink 240, a wiring bracket 250, and a plug 260. The heat sink 240 is positioned directly opposite the control panel 60 to facilitate heat dissipation from the control panel 60. The wiring bracket 250 is used to centralize the wires from the pressure sensor 30 and the power module 50, connecting them to the control panel 60. The plug 260 is used to mate with the corresponding socket 130 on the top cover 10 to connect the top cover 10 to the base 20. The base 20 is also provided with other components, which will not be described individually.

[0047] Please refer to Figure 3 and Figure 4 , Figure 4 for Figure 1 The schematic diagram of the electronic scale shown in the figure, in which the top cover is omitted, is used to illustrate the structure of the pressure sensor 30, power module 50, and control panel 60 installed on the base 20. One end of the pressure sensor 30 is installed in the receiving groove 210, with the first through hole 320 aligned with the first positioning hole 213. The mounting post 215 passes through the first positioning hole 213 and the first through hole 320, so that the mounting post 215 is engaged with the first through hole 320, connecting the end of the pressure sensor 30 near the receiving groove 210 to the base 20. The other end of the pressure sensor 30 is placed on the base 20 near the second positioning hole 220, so that the second positioning hole 220 is aligned with the second through hole 330 of the pressure sensor 30. The bolt 221 passes through the second positioning hole 220 and the second through hole 330. A certain gap exists between the bolt 221 and the second through hole 330, which is used to install the bolt sleeve 120 on the top cover 10.

[0048] See also Figure 5 , Figure 5 for Figure 1The top cover of the electronic scale is shown in the figure. A plurality of crisscrossing ribs are provided inside the top cover 10 to enhance the structural strength of the top cover 10. A socket 130 is also provided inside the top cover 10 for inserting a plug 260 on the base 20 to connect the top cover 10 and the base 20. A mounting groove 110 is provided in the portion of the top cover 10 opposite the pressure sensor 30 for mounting the pressure sensor 30. Specifically, the length and width of the mounting groove 110 are adapted to the length and width of the pressure sensor 30 so that the top of the pressure sensor 30 can be precisely snapped into the mounting groove 110. The height of the side groove wall 111 of the mounting groove 110 is substantially consistent with the height of the rib plate of the top cover 10, wherein a portion of the side groove wall 111 of the mounting groove 110 close to the second positioning hole 220 extends in the vertical direction, that is, the height of the side groove wall 111 of this portion is greater than the side groove wall 111 of the other portion of the mounting groove 110, thereby being able to better abut against the side of the pressure sensor 30 from the side, thereby achieving horizontal positioning of the pressure sensor 30.

[0049] Please refer to Figure 5 and Figure 6 , Figure 6 for Figure 1 The cross-sectional structure diagram of the electronic scale is shown. A bolt sleeve 120 is also provided in the mounting groove 110 at a position corresponding to the second positioning hole 220. The bolt sleeve 120 is used to be inserted into the second through hole 330 of the pressure sensor 30. Specifically, the outer diameter of the bolt sleeve 120 is equal to the inner diameter of the second through hole 330, so that the bolt sleeve 120 can be snapped into the second through hole 330, thereby connecting the top cover 10 to the pressure sensor 30. The bolt sleeve 120 is hollow and has an internal thread. The screw rod of the bolt 221 is provided with an external thread that matches the internal thread. When the bolt 221 is inserted into the bolt sleeve 120 through the second positioning hole 220, the base 20 and the top cover 10 are threadedly connected. Furthermore, since the bolt sleeve 120 on the top cover 10 is sleeved in the second through hole 330 of the pressure sensor 30, and the bolt 221 of the base 20 is threadedly connected to the bolt sleeve 120 of the top cover 10, the top cover 10, the pressure sensor 30 and the base 20 are connected by sequentially nesting the second through hole 330, the bolt sleeve 120 and the bolt 221.

[0050] See also Figure 6The receiving groove 210 and the mounting groove 110 are respectively provided on either side of the pressure sensor 30. The receiving groove side walls 211 and the mounting groove side walls 111 are arranged opposite each other, limiting the horizontal position of the pressure sensor 30. The mounting groove bottom wall 112 of the top cover 10, as well as the base 20 and the boss 212, respectively abut against the pressure sensor 30 from both sides in the vertical direction. Simultaneously, the mounting post 215 connects the base 20 and the pressure sensor 30 by inserting into the first through-hole 320. The bolt 221 and the bolt sleeve 120 connect the base 20, the pressure sensor 30, and the top cover 10 by inserting into the second through-hole 330. This not only allows the pressure sensor 30 to be quickly positioned in the preset installation position, but also further improves the connection stability of the pressure sensor 30.

[0051] In some embodiments, after placing the base 20, the assembler installs the power module 50, pressure sensor 30, control panel 60, display processor 70, and other electronic components in corresponding positions on the base 20. When installing the pressure sensor 30, the end of the pressure sensor 30 corresponding to the receiving groove 210 is snapped into the receiving groove 210, and the side surfaces of the pressure sensor 30 are ensured to abut against the side groove walls 211 of the receiving groove. At this point, the pressure sensor 30 is already in the preset installation position, i.e., the first through hole 320 is aligned with the first positioning hole 213, and the second through hole 330 is aligned with the second positioning hole 220, and no further adjustment is required. After the pressure sensor 30 is installed, the top cover 10 is placed on the base 20, so that the plug 260 of the base 20 is inserted into the socket 130 of the top cover 10 and the bolt sleeve 120 of the top cover 10 is inserted into the second through hole 330 of the pressure sensor 30. At this point, the top of the pressure sensor 30 is also received in the mounting groove 110 of the top cover 10. Finally, insert the mounting column 215 into the first through hole 320 of the pressure sensor 30 from the first positioning hole 213 on the base 20, and screw the bolt 221 into the bolt sleeve 120 located in the second through hole 330 from the second positioning hole 220 on the base 20, thereby completing the assembly of the electronic scale.

[0052] In summary, the electronic scale provided by the present application, by providing a receiving groove 210 on the base 20, can achieve positioning of the pressure sensor 30 while installing the pressure sensor 30 in the receiving groove 210. There is no need to adjust the position of the pressure sensor 30, and the mounting column 215 and the bolt 221 can be directly used for fastening. During the assembly process, since the receiving groove 210 has been pre-set on the base 20, there is no need to install a support platform on the base 20, which simplifies the operation steps. At the same time, the cooperation between the mounting column 215 and the first positioning hole 213 and the first through hole 320, as well as the cooperation between the bolt 221, the bolt sleeve 120 and the second positioning hole 220 and the second through hole 330 also improve the installation stability of the pressure sensor 30.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic scale, characterized in that: include: A pressure sensor is provided with a first through hole; A base, provided with a receiving groove and a mounting post, the receiving groove receiving the pressure sensor, a first positioning hole being opened on the bottom groove wall of the receiving groove, the mounting post being sequentially passed through the first positioning hole and the first through hole to fix the pressure sensor in the receiving groove; and The top cover is installed on the base.

2. The electronic scale according to claim 1, wherein: A second positioning hole is also provided on the base, and the second positioning hole and the first positioning hole are respectively provided at opposite ends of the base. The first through hole and the second through hole are respectively provided at both ends of the pressure sensor, and the first through hole is aligned with the first positioning hole, and the second through hole is aligned with the second positioning hole.

3. The electronic scale according to claim 2, characterized in that: A notch is provided on the side wall of the receiving groove. One end of the pressure sensor is installed in the receiving groove through the first positioning hole, and the other end extends from the notch and is fixed to the base.

4. The electronic scale according to claim 3, characterized in that: The top cover is provided with a mounting groove, and the bottom groove wall of the mounting groove and the bottom groove wall of the receiving groove abut against the top surface and the bottom surface of the pressure sensor respectively, so as to limit the pressure sensor in the vertical direction.

5. The electronic scale according to claim 4, characterized in that: The side groove walls of the installation groove and the side groove walls of the receiving groove are fitted to the side surfaces of the pressure sensor to limit the pressure sensor in the horizontal direction.

6. The electronic scale according to claim 4, characterized in that: A portion of the side groove wall of the installation groove adjacent to the second positioning hole extends in a vertical direction so as to clamp the other end of the pressure sensor relative to the receiving groove into the installation groove.

7. The electronic scale according to claim 6, characterized in that: The mounting groove is provided with a bolt sleeve, and the bolt sleeve is passed through the second through hole of the pressure sensor to connect the pressure sensor and the top cover.

8. The electronic scale according to claim 7, characterized in that: It also includes a bolt, which passes through the second positioning hole of the base and is arranged in the bolt sleeve to connect the base, the pressure sensor and the top cover.

9. The electronic scale according to any one of claims 1 to 8, characterized in that: A boss is provided in the receiving groove, the first positioning hole is opened on the boss, and the boss abuts against the bottom of the pressure sensor for supporting the pressure sensor.

10. The electronic scale according to any one of claims 1 to 8, characterized in that: A side groove wall of the receiving groove is provided with a relief opening, and the relief opening is used to accommodate the wire of the pressure sensor.

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