CN111366228A

CN111366228A - Electronic scale and weighing system

Info

Publication number: CN111366228A
Application number: CN202010279681.5A
Authority: CN
Inventors: 曹冬军; 李伟恒; 贺朝辉; 黄启优
Original assignee: Zhongshan Camry Electronic Co Ltd
Current assignee: Zhongshan Camry Electronic Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-07-03

Abstract

The invention provides an electronic scale and a weighing system, wherein the electronic scale comprises a knob, a potentiometer, a controller and a circuit board, the potentiometer is electrically connected with the circuit board, the knob is connected with a rotating body of the potentiometer and is used for driving the rotating body of the potentiometer to rotate relative to a resistor body of the potentiometer so as to adjust the voltage output by the potentiometer to the circuit board; the controller is in communication connection with the circuit board and used for switching the working mode of the electronic scale according to the voltage. Because the switching of the working mode of the electronic scale is realized by rotating the knob, when the working mode is selected, the knob can rotate forwards and backwards, the operation mode is flexible and convenient, and the working mode can be switched more conveniently and quickly.

Description

Electronic scale and weighing system

Technical Field

The invention relates to the technical field of weighing, in particular to an electronic scale and a weighing system.

Background

In the electronic scale use, according to the difference such as the type or the size of the article that the electronic scale weighed, the operation mode of needs switching electronic scale to realize more accurate and convenient weighing. For example, the electronic scale is adjusted to be in a mode of weighing volume, a mode of weighing weight, or a mode of adopting different weighing units when weighing according to the type of the object to be measured.

The research shows that the prior electronic scale has the following defects:

the operation is inconvenient when the operation mode of the electronic scale is switched.

Disclosure of Invention

The invention aims to provide an electronic scale and a weighing system, which can improve the convenience of operation of switching working modes of the electronic scale.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present invention provides an electronic scale, including:

the potentiometer is electrically connected with the circuit board, and the knob is connected with a rotating body of the potentiometer and used for driving the rotating body of the potentiometer to rotate relative to a resistor body of the potentiometer so as to adjust the voltage output by the potentiometer to the circuit board; the controller is in communication connection with the circuit board and used for switching the working mode of the electronic scale according to the voltage.

In an optional embodiment, the electronic scale further comprises a mask, and the knob is convexly arranged on the mask and is in rotating fit with the mask.

In an optional embodiment, the knob is provided with an indicating part, the mask is provided with a plurality of function identification parts arranged around the knob, and when the knob rotates, the indicating part is optionally opposite to one of the function identification parts so as to feed back the working mode of the electronic scale.

In an alternative embodiment, the indicator is a groove provided on the knob.

In an alternative embodiment, the functional indicia is printed on the mask.

In an alternative embodiment, the knob is snap-fit to the rotator.

In an optional embodiment, a first connecting portion is arranged on the knob, a second connecting portion is arranged on the rotating body, the first connecting portion is one of a clamping groove and a protrusion, the second connecting portion is the other of the clamping groove and the protrusion, and the clamping groove is in clamping fit with the protrusion.

In an optional embodiment, the electronic scale further comprises a switch key, and the switch key is electrically connected with the circuit board and used for controlling the circuit board to be powered on or powered off.

In an optional embodiment, the knob is provided with a mounting through hole, the on-off key is located in the mounting through hole, and the on-off key is in sliding fit with the knob along the extending direction of the mounting through hole.

In a second aspect, an embodiment of the present invention provides a weighing system, including:

the electronic scale of any of the preceding embodiments.

The embodiment of the invention has the beneficial effects that:

in summary, the present embodiment provides an electronic scale, when the electronic scale switches the operation mode, the knob drives the rotator of the potentiometer to rotate relative to the resistor of the potentiometer by rotating the knob, when the rotator rotates to different positions, contact points of the rotator and the resistor are different, so as to achieve an effect of adjusting the resistance, the potentiometer is electrically connected to the circuit board, after the resistance of the potentiometer is changed, a voltage input to the circuit board by the potentiometer is changed, and the controller switches the operation mode of the electronic scale according to the difference of the voltage. Because the switching of the working mode of the electronic scale is realized by rotating the knob, when the working mode is selected, the knob can rotate forwards and backwards, the operation mode is flexible and convenient, and the working mode can be switched more conveniently and quickly.

The embodiment also provides a weighing system which comprises the electronic scale, and the operation mode of the electronic scale is convenient and quick to switch.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded view of an electronic scale according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an electronic scale according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic structural diagram of a knob according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a rotor according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an on-off key according to an embodiment of the present invention.

Icon:

001-electronic scale; 100-knob; 110-an outer cover; 111-anti-skid structure; 113-an indication section; 130-a first bump; 131-a first connection; 150-a second bump; 151-first reverse buckle; 300-a potentiometer; 310-a rotor; 311-socket joint hole; 313-a second connection; 315-second back-off; 320-resistor body; 330-a fixing frame; 331-a base; 333-enclosure; 335-a guide cylinder; 3351-cell configuration; 500-a circuit board; 510-a switch button; 700-a housing; 710-a lower shell; 730-a mask; 731-display window; 733-mounting holes; 735-a function identification portion; 900-on-off key; 910-a limit projection structure; 200-sticking a film.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an electronic scale 001, which can be used alone or in combination with other devices, and when the electronic scale 001 is used, the operation mode is switched conveniently and the operation is convenient.

Referring to fig. 1-3, in the present embodiment, an electronic scale 001 includes a knob 100, a potentiometer 300, a controller (not shown), and a circuit board 500, wherein the potentiometer 300 is electrically connected to the circuit board 500, the knob 100 is connected to a rotating body 310 of the potentiometer 300, and is used for driving the rotating body 310 of the potentiometer 300 to rotate relative to a resistor 320 of the potentiometer 300, so as to adjust a voltage output from the potentiometer 300 to the circuit board 500; the controller is in communication connection with circuit board 500 and is configured to switch the operating mode of electronic scale 001 according to the voltage.

When the electronic scale 001 provided by the embodiment switches the operation mode, the knob 100 is rotated to drive the rotator 310 of the potentiometer 300 to rotate relative to the resistor 320 of the potentiometer 300 by rotating the knob 100, when the rotator 310 rotates to different positions, contact points of the rotator 310 and the resistor 320 are different, so as to realize the function of adjusting the resistance, the potentiometer 300 is electrically connected with the circuit board 500, after the resistance of the potentiometer 300 is changed, the voltage input to the circuit board 500 through the potentiometer 300 is changed, and the controller switches the operation mode of the electronic scale 001 according to the difference of the voltage. Because the switching of the working mode of electronic scale 001 is realized by rotating knob 100, knob 100 can rotate forward and backward when the working mode is selected, and the operation mode is flexible and convenient, so that the working mode can be switched more conveniently and rapidly.

It should be noted that the controller may be integrated on the circuit board 500, or may be provided separately from the circuit board 500.

In this embodiment, electronic scale 001 may further include a case 700, and case 700 may have a cavity for accommodating electrical components of electronic scale 001.

Referring to fig. 1, optionally, case 700 includes a lower case 710 and a cover 730, the lower case 710 having a recess, the cover 730 coupled to the lower case 710, the cover 730 closing a notch of the lower case 710, such that the lower case 710 and the cover 730 together define a cavity for receiving electrical components of electronic scale 001.

Further, the rectangular frame structure of the lower shell 710, the groove formed by the lower shell 710 is a rectangular groove, correspondingly, the mask 730 is a rectangular plate, and the lower shell 710 and the mask 730 are connected through a buckle structure.

It should be understood that the lower shell 710 and the mask 730 may be detachably connected by other means such as screws. The materials of the lower case 710 and the mask 730 are not particularly limited.

Optionally, the mask 730 is provided with a display window 731, a mounting hole 733, and a plurality of function indicators 735.

Optionally, the display window 731 is a light-transmissive structure, the display window 731 may be a through hole, and the display window 731 may also be transparent glass or plastic. Image information such as numbers displayed when the electronic scale 001 weighs can be observed through the display window 731.

Alternatively, the mounting hole 733 may be spaced apart from the display window 731, the mounting hole 733 may be a cylindrical hole, a square cylindrical hole, an elliptical hole, or the like, and the mounting hole 733 corresponds to the knob 100 to provide a space for connection of the knob 100 and the potentiometer 300.

Optionally, the function indicator 735 is printed on the mask 730. The number of the function markers 735 is set as required, and a plurality of the function markers 735 are arranged at intervals around the mounting hole 733. In this embodiment, the number of the function identifiers 735 is six, and the operation mode of the electronic scale 001 indicated by each function identifier 735 is different. For example, the function identifier 735 may include the type of item being weighed, the unit being weighed, and the manner in which it is being weighed. The type of the weighing object can include milk or purified water, etc., the unit of weighing can include milliliters, liters, etc., and the weighing mode can include the volume or weight of the object, etc.

Referring to fig. 4, in the present embodiment, optionally, the knob 100 includes an outer cover 110, and a plurality of first protrusions 130 and a plurality of second protrusions 150 that are disposed in the outer cover 110 and are alternately arranged, a width of the first protrusions 130 in a circumferential direction of the outer cover 110 is greater than a width of the second protrusions 150 in the circumferential direction of the outer cover 110, and a distance is provided between adjacent first protrusions 130 and second protrusions 150. The plurality of first protrusions 130 and the plurality of second protrusions 150 are located on a circumference concentric with the outer cover 110.

Alternatively, the outer cover 110 may be a circular cover, the outer circumferential wall of the outer cover 110 is provided with the anti-slip structure 111 and the indication part 113, and the indication part 113 may be a groove structure 3351 provided on the outer cover 110. The anti-slip structure 111 may be anti-slip lines, and the anti-slip structure 111 is used to increase the friction force between the knob 100 and the operator, so that the knob 100 is not easy to slip when operated, and the rotation is more reliable.

Further, the outer cover 110 is provided with through holes, the first bumps 130 and the second bumps 150 are alternately arranged along the circumferential direction of the through holes at intervals, and the through holes are located in an area surrounded by the plurality of first bumps 130 and the plurality of second bumps 150.

Further, the inner wall of the first bump 130 is provided with a first connecting portion 131, and the first connecting portion 131 is one of a slot and a protrusion. For example, in the present embodiment, the first connection portion 131 is a protrusion.

Further, a first reverse buckle 151 is disposed at an end of the second bump 150 away from the outer cover 110.

Referring to fig. 5, in the present embodiment, optionally, the potentiometer 300 further includes a fixing frame 330, the fixing frame 330 includes a base 331, an enclosure 333 and a guiding cylinder 335, the enclosure 333 is connected with the periphery of the base 331, and the enclosure 333 and the base 331 together define an annular groove. The middle of base 331 is equipped with the through-hole, and guide cylinder 335 is located the middle part position of ring channel, and guide cylinder 335 communicates with the through-hole on base 331. The base 331 of the fixing frame 330 is connected to the lower case 710, the base 331 is connected to the circuit board 500, and the circuit board 500 is connected to the lower case 710.

Further, a groove structure 3351 is provided on the inner wall of the guide cylinder 335.

Optionally, the resistor 320 is connected to the fixing frame 330, and the resistor 320 is electrically connected to the circuit board 500. Alternatively, the resistor 320 may be a copper sheet.

Referring to fig. 6, optionally, the rotating body 310 is provided with a sleeve hole 311, and the outer wall of the rotating body 310 is provided with a second connecting portion 313 and a second inverse buckle 315. The second connection portion 313 is one of a card slot and a protrusion, and it should be noted that the first connection portion 131 and the second connection portion 313 are in snap fit, so that when the first connection portion 131 is one of a card slot and a protrusion, the second connection portion 313 is the other of a card slot and a protrusion. For example, in this embodiment, the second connection portion 313 is a card slot.

Referring to fig. 7, in this embodiment, optionally, the electronic scale 001 further includes a switch key 900. The switch key 900 is provided with a limiting protrusion structure 910, the switch key 900 is inserted into the guide cylinder 335 of the fixing portion, and the limiting protrusion structure 910 on the switch key 900 is in clamping fit with the groove structure 3351 in the guide cylinder 335, and the two are in sliding fit in the extending direction of the guide cylinder 335. In other words, the end of the on-off switch 900 is in abutting fit with the switch button 510 on the circuit board 500, and when the on-off switch 900 is pressed, the on-off switch 900 drives the switch button 510 to move, so that operations such as opening, closing and zero clearing of the electronic scale 001 are realized. The on-off switch 900 is in sliding fit with the fixing part, and the knob 100 is sleeved outside the guide cylinder 335 of the fixing part, so that the on-off switch 900 is located in the knob 100, and the on-off switch 900 is tightly matched with the knob 100, thereby being convenient for operation and control. In addition, switch key 900 and guide cylinder 335 joint cooperation, the two can not rotate relatively, can not drive switch key 900 when also being rotated to knob 100 and rotate together, and the two are independent each other, and mutual noninterference is controlled the convenience.

Optionally, the electronic scale 001 further includes a film 200, the film 200 is attached to one side of the switch key 900 far away from the circuit board 500, and the film 200 may be provided with patterns such as switches, which is convenient for operators to identify.

Optionally, the electronic scale 001 further includes a display screen electrically connected to the circuit board 500, a screen of the display screen is aligned with the display window 731 of the mask 730, and data measured by the electronic scale 001 is displayed through the display screen and can be directly read through the display window 731.

In the electronic scale 001 provided in this embodiment, the circuit board 500 is fixed on the lower case 710, the fixing frame 330 is connected to the circuit board 500, the resistor 320 is disposed on the fixing frame 330, the rotator 310 is sleeved outside the guide cylinder 335 through the sleeving hole 311, and the rotator 310 and the guide cylinder 335 are rotatably matched and relatively fixed in the axial direction of the guide cylinder. The rotating body 310 is electrically connected to the resistor 320, and when the rotating body 310 rotates, the contact position between the rotating body 310 and the resistor 320 can be correspondingly adjusted, so that the resistance value of the resistor 320 in the circuit can be adjusted, and the voltage can be adjusted. The knob 100 is sleeved outside the rotating body 310, the first connecting portion 131 on the knob 100 is in snap fit with the second connecting portion 313 on the rotating body 310, and the two are relatively fixed in the circumferential direction of the knob 100, that is, the rotating body 310 rotates along with the rotation of the knob 100. Meanwhile, the first reverse buckle 151 on the knob 100 and the second reverse buckle 315 on the rotating body 310 are in snap fit, so that the two are relatively fixed on the axis of the knob 100, and the knob 100 is prevented from being separated from the rotating body 310. The switch key 900 is inserted into the guide cylinder 335, the limit protrusion structure 910 on the switch key 900 is in clamping fit with the groove structure 3351 in the guide cylinder 335, and the switch key 900 can relatively slide on the axis of the guide cylinder 335 relative to the guide cylinder 335, so that the electronic scale 001 is opened, closed, cleared and the like.

When using electronic scale 001, switch key 900 may be turned on before the operating mode of electronic scale 001 is switched, so that electronic scale 001 is in a power-on state. When the operation mode of electronic scale 001 needs to be switched, knob 100 is rotated so that indication portion 113 of knob 100 is aligned with corresponding function indicator portion 735. Of course, when electronic scale 001 is used, knob 100 may be directly rotated to a desired operation mode when electronic scale 001 is not turned on, and then switch key 900 may be pressed to turn on electronic scale 001.

The embodiment also provides a weighing system, which comprises the above-mentioned electronic scale 001, and when weighing objects, the working mode of the electronic scale 001 can be switched according to needs, and the switching operation is convenient and reliable. During switching, the indication part 113 on the knob 100 and the function identification part 735 on the mask 730 can be directly viewed by an operator, so that the operator can clearly know the current working mode of the electronic scale 001, and the switching efficiency is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic scale, comprising:

2. An electronic scale according to claim 1, characterized in that:

the electronic scale further comprises a face mask, and the knob is convexly arranged on the face mask and is in running fit with the face mask.

3. An electronic scale according to claim 2, characterized in that:

the electronic scale comprises a rotary knob, a face cover and a plurality of function identification parts, wherein the rotary knob is provided with an indication part, the face cover is provided with a plurality of function identification parts which are arranged around the rotary knob, and when the rotary knob rotates, the indication part can be optionally opposite to one of the function identification parts so as to feed back the working mode of the electronic scale.

4. An electronic scale according to claim 3, characterized in that:

the indicating part is a groove arranged on the knob.

5. An electronic scale according to claim 3, characterized in that:

the function identification part is printed on the mask.

6. An electronic scale according to claim 1, characterized in that:

the knob is in clamping fit with the rotating body.

7. An electronic scale according to claim 6, wherein:

be equipped with first connecting portion on the knob, be equipped with the second connecting portion on the rotor, first connecting portion are one in draw-in groove and the arch, the second connecting portion do the draw-in groove with another in the arch, wherein, the draw-in groove with protruding joint cooperation.

8. An electronic scale according to claim 1, characterized in that:

the electronic scale further comprises a switch key, wherein the switch key is electrically connected with the circuit board and used for controlling the circuit board to be powered on or powered off.

9. An electronic scale according to claim 8, wherein:

the knob is provided with an installation through hole, the on-off key is located in the installation through hole, and the on-off key is in sliding fit with the knob along the extending direction of the installation through hole.

10. A weighing system, characterized in that the weighing system comprises:

an electronic scale according to any one of claims 1-9.