CN102435273A

CN102435273A - Electronic scale

Info

Publication number: CN102435273A
Application number: CN2011102930069A
Authority: CN
Inventors: 吴纪林
Original assignee: CHANGZHOU JIAHENG BALANCE INSTRUMENT CO LTD
Current assignee: CHANGZHOU JIAHENG BALANCE INSTRUMENT CO LTD
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-05-02

Abstract

The invention discloses an electronic scale. The electronic scale comprises: a scale body, a weighing sensor, a weighing plate, a top cover, a power supply and an operation panel. The electronic scale is characterized in that: a sundry plate is arranged between the top cover and the weighing plate; the sundry plate contacts with the top cover and does not contact with the weighing plate; the weighing plate is connected with the weighing sensor; a plurality of circular through holes are arranged on the surface of the weighing plate; the circular through holes are communicated with the sundry plate and are taken as channels for sundry particles to pass through. The invention discloses an electronic scale. A balance structure is reasonable. A weighing process is simple. Because the unique structure, influence of the sundry particles carried by an article on article weighing can be lessened so that a article weighing result is accurate. Mismeasurement during a transaction can be avoided. Simultaneously, foreign particles can be avoided to enter into the scale body of the electronic scale so as to avoid influencing normal work of internal components. A service life and safety performance of the electronic scale can be prolonged and increased.

Description

A kind of electronic scales

Technical field

The present invention relates to a kind of electronic scales, be specifically related to a kind of electronic scales that can effectively reduce amount of impurities on the weighing pan, belong to the electronic scales technical field.

Background technology

Existing electronic scales is easy and simple to handle, can show various data, therefore uses very extensive.It is mainly by parts such as base, motherboard, chipset, LOAD CELLS, support, power supply, weighing pan, guidance panels, and composition such as amplifying circuit, A/D change-over circuit, display circuit, mu balanced circuit.Its workflow is: at first, object is placed on the weighing pan, the pressure that article produce passes to LOAD CELLS, makes sensor generation deformation, thereby impedance is changed; Then, driving voltage changes, the simulating signal of a variation of output, and this signal amplifies through amplifying circuit and outputs to A/D converter, converts to be input to CPU after the digital signal of being convenient to handle and to carry out calculation process; At last, CPU exports this result according to keyboard commands and program through display.

People are when buying some fresh vegetables; The root of vegetables what can leave over earth or the foreign material particle of taking out of when some are plucked; When on electronic scales, weighing; The weight of these subsidiary article also can join in the general assembly (TW) of vegetables, has reduced the accuracy of weighing, and has improved people's purchase cost.

Summary of the invention

To the demand, the invention provides a kind of electronic scales, weighing pan and foreign material dish special structural design have effectively reduced the influence of foreign material particle to weighing results in this electronic scales, have improved the fairness of transaction.

The present invention is a kind of electronic scales, and this electronic scales comprises scale body, LOAD CELLS, weighing pan, loam cake, power supply and guidance panel, it is characterized in that; The foreign material dish is set between described loam cake and the weighing pan, keeps in touch between described foreign material dish and the loam cake, but and contactless between the weighing pan; Described weighing pan links to each other with LOAD CELLS; A plurality of manholes are offered on the weighing pan surface, and described manhole is communicated with the foreign material dish, for the foreign material particle through using passage.

In the present invention's one preferred embodiment, the quantity of the manhole that described weighing pan surface is offered is 20-30.

In the present invention's one preferred embodiment, the aperture of described manhole is 3-5mm, and pitch of holes remains on about 15mm.

In the present invention's one preferred embodiment, described weighing pan surface is arc surface design, helps impurity particle and gets into the foreign material dish through manhole.

In the present invention's one preferred embodiment, described weighing pan adopts PC or ABS material, through thermoplastic shaping.

In the present invention's one preferred embodiment, described foreign material dish one end opening, its extended distance is convenient to its dismounting, cleaning greater than the LOAD CELLS contiguous block.

In the present invention's one preferred embodiment, the degree of depth of described foreign material dish is 4-6mm, and the weighing pan correspondence position of its opening top is not provided with manhole.

The present invention has disclosed a kind of electronic scales, this balance reasonable in design, and weighing process is easy; Its special structure design; Can effectively reduce the influence that impurity particle that article carry is weighed to article, make the weighing results of article more accurate, the phenomenon of giving short weight in avoiding concluding the business; Simultaneously, can prevent effectively that impurity particle from infiltrating scale body of electronic scale, avoid its operate as normal that influences inner components and parts, improve the serviceable life and the security performance of electronic scales.

Description of drawings

Fig. 1 is the structural representation of electronic scales according to the invention;

Fig. 2 is the cut-open view of electronic scale weighing according to the invention place parts;

Fig. 3 is the structural representation of foreign material dish in the electronic scales according to the invention;

Each annex mark is following in the accompanying drawing: 1, scale body, 2, LOAD CELLS, 3, weighing pan, 4, loam cake, 5, the foreign material dish, 6, manhole. ?

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.

See also Fig. 1, Fig. 2, Fig. 3, Fig. 1 are the structural representations of electronic scales according to the invention; Fig. 2 is the cut-open view of electronic scale weighing according to the invention place parts; Fig. 3 is the structural representation of foreign material dish in the electronic scales according to the invention; This electronic scales comprises scale body 1, LOAD CELLS 2, weighing pan 3, loam cake 4, power supply and guidance panel, it is characterized in that, between described loam cake 4 and the weighing pan 3 foreign material dish 5 is set; Keep in touch between described foreign material dish 5 and the loam cake 4; But and contactless between the weighing pan 3, described weighing pan 3 links to each other with LOAD CELLS 2, and a plurality of manholes 6 are offered on weighing pan 3 surfaces; Described manhole 6 is communicated with foreign material dish 5, for the foreign material particle through using passage.

The quantity of the manhole 6 that weighing pan 3 surfaces are offered in the electronic scales that the present invention mentions is 20-30, and the aperture of manhole 6 is 3-5mm, and pitch of holes remains on about 15mm; Weighing pan 3 surfaces are arc surface design, help impurity particle and get into foreign material dish 5 through manhole 6; Weighing pan 3 adopts PC or ABS material, through thermoplastic shaping.

Foreign material dish 5 adopts the PC material, and one of which end opening, extended distance are greater than the contiguous block of LOAD CELLS 2, and the dismounting of foreign material dish 5 and cleaning are all very convenient; Its degree of depth is 4-6mm, can store a certain amount of foreign material; Weighing pan 3 correspondence positions of its opening top are not provided with manhole 6, guarantee in weighing process, and the manhole 6 of impurity particle on can weighing pan 3 gets into scale bodies 1, avoids influencing the operate as normal of components and parts in the scale body 1.

The present invention has disclosed a kind of electronic scales; Its characteristics are: this balance reasonable in design; Weighing process is easy, and its special structure design can effectively reduce the influence that impurity particle that article carry is weighed to article; Make the weighing results of article more accurate, the phenomenon of giving short weight in avoiding concluding the business; Simultaneously, can prevent effectively that impurity particle from infiltrating scale body of electronic scale, avoid its operate as normal that influences inner components and parts, improve the serviceable life and the security performance of electronic scales.

The above; Be merely embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.

Claims

1. electronic scales, this electronic scales comprises scale body, LOAD CELLS, weighing pan, loam cake, power supply and guidance panel, it is characterized in that; The foreign material dish is set between described loam cake and the weighing pan, keeps in touch between described foreign material dish and the loam cake, but and contactless between the weighing pan; Described weighing pan links to each other with LOAD CELLS; A plurality of manholes are offered on the weighing pan surface, and described manhole is communicated with the foreign material dish, for the foreign material particle through using passage.

2. electronic scales according to claim 1 is characterized in that, the quantity of the manhole that described weighing pan surface is offered is 20-30.

3. electronic scales according to claim 2 is characterized in that the aperture of described manhole is 3-5mm, and pitch of holes remains on about 15mm.

4. electronic scales according to claim 2 is characterized in that, described weighing pan surface is arc surface design, helps impurity particle and gets into the foreign material dish through manhole.

5. electronic scales according to claim 2 is characterized in that, described weighing pan adopts PC or ABS material, through thermoplastic shaping.

6. electronic scales according to claim 1 is characterized in that, described foreign material dish one end opening, and its extended distance is convenient to its dismounting, cleaning greater than the LOAD CELLS contiguous block.

7. electronic scales according to claim 6 is characterized in that, the degree of depth of described foreign material dish is 4-6mm, and the weighing pan correspondence position of its opening top is not provided with manhole.