CN205879331U - Weighing instrument - Google Patents

Abstract

The utility model relates to a weighing instrument. A weighing instrument comprises a seat, a weighing platform, a pressure sensor and a weighing circuit board, wherein the pressure sensor is electrically connected to the weighing circuit board, the seat is provided with a storage space, and further comprises a rechargeable battery and a wireless charging device, wherein the rechargeable battery, the wireless charging device and the weighing circuit board are all located in the storage space, and the rechargeable battery is electrically connected to the wireless charging device and the weighing circuit board respectively. After the wireless charging device is provided, the utility model can wirelessly charge the rechargeable battery, thereby avoiding the situation where the power cannot be supplied in time, and the utility model is convenient to use.

Description

a weighing instrument

technical field

The utility model relates to a weighing instrument.

Background technique

With the improvement of people's quality of life, people pay more and more attention to their personal physical condition. At present, many families have their own weighing instruments for weighing. The weighing instruments are currently powered by batteries, and the service life of batteries Generally, it cannot be estimated accurately, so it often encounters the situation of insufficient power or no power, which brings inconvenience to use.

Contents of the invention

The utility model provides a convenient weighing instrument for solving the problem that the weighing instrument in the prior art cannot supply power in time.

The technical scheme that the utility model adopts is:

A weighing instrument, including a base body, a weighing platform, a pressure sensor and a weighing circuit board, the pressure sensor is electrically connected to the weighing circuit board, the base body is provided with an accommodating space, and also includes a rechargeable battery and a wireless charging device. The battery, the wireless charging device and the weighing circuit board are all located in the accommodation space, and the rechargeable battery is electrically connected to the wireless charging device and the weighing circuit board respectively.

Further, a pressure switch is also included, and the pressure switch is arranged under the weighing platform and is electrically connected with the weighing circuit board.

Further, the pressure switch includes two contacts, and a contact piece and a spring are arranged between the two contacts; the two ends of the spring are respectively connected with the contact piece and the seat body.

Further, the weighing circuit board is provided with a signal amplifying circuit and a processor, the weighing instrument also includes a display screen, the signal amplifying circuit is electrically connected to the pressure sensor, and the processor is electrically connected to the signal amplifying circuit, the rechargeable battery and the display screen respectively.

Further, a voice circuit is also included, and the voice circuit is signally connected to the processor.

Still further, the weighing instrument also includes a storage device, and the storage device is connected to the processor for signals.

The beneficial effects obtained by the utility model are: the utility model can wirelessly charge the rechargeable battery by setting the wireless charging device, avoiding the situation that the power cannot be supplied in time, and is convenient to use.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is a schematic diagram of the principle of the utility model.

Fig. 3 is a schematic diagram of a pressure switch.

The reference signs are:

1-weighing platform; 2-base; 3-weighing circuit board; 4-wireless charging device; 5-rechargeable battery; 6-pressure sensor; 7-display screen; 9-amplifying circuit; 10-processor; 11 -voice circuit; 12-storage device; 61-contact; 62-contact sheet; 63-spring.

detailed description

Referring to Fig. 1 and Fig. 2, a weighing instrument includes a base body 2, a weighing platform 1, a pressure sensor 6 and a weighing circuit board 3, the base body 2 is provided with an accommodating space, and the pressure sensor 6 and the weighing circuit board 3 is electrically connected, and also includes a rechargeable battery 5 and a wireless charging device 4, the rechargeable battery 5, the wireless charging device 4, and the weighing circuit board 3 are all located in the accommodation space, and the rechargeable battery 5 is electrically connected to the wireless charging device 4 and weighed The circuit board 3 is electrically connected.

The technical solution uses the wireless charging device 4 to supply power to the rechargeable battery 5. When the power of the rechargeable battery 5 of the weighing instrument is insufficient, the wireless charging device 4 can be used to charge the rechargeable battery 5, which is convenient to use. For the convenience of observing the weighing weight, the weighing instrument can be provided with a display screen 7 or a mechanical instrument; electrical connection. The wireless charging device 4 is a prior art.

Further, a pressure switch is also included, and the pressure switch is arranged under the weighing platform 1 and electrically connected with the weighing circuit board 3 .

At present, many weighing instruments use key switches, and the key switches are often forgotten to be turned off during use, resulting in waste of battery power; after setting the pressure switch, the weighing instrument will automatically disconnect after use. Preferably, the pressure switch is arranged below the pressure sensor 6 .

Referring to FIG. 3 , further, the pressure switch includes two contacts 61 , and a contact piece 62 and a spring 63 are arranged between the two contacts 61 ;

Further, the weighing circuit board 3 is provided with a signal amplifying circuit 9 and a processor 10, the weighing instrument also includes a display screen 7, the signal amplifying circuit 9 is electrically connected to the pressure sensor 6, and the processor 10 is respectively connected to the signal amplifying circuit 9, the charging The battery 5 and the display screen 7 are electrically connected.

When working, the pressure sensor 6 is used to sense the weight, and converts the analog signal of the weight into a digital signal and transmits it to the signal amplification circuit 9 for amplification, and then transmits it to the processor 10, and the processor 10 analyzes and processes the digital signal of the weight , and transmitted to the display screen 7 for display. for easy observation. The processor 10 may be an MCU, a single-chip microcomputer, a control IC, and the like.

Further, a voice circuit 11 is also included, and the voice circuit 11 is signally connected to the processor 10 .

After the voice circuit 11 is set, when weighing, the processor 10 sends the weight signal to the voice circuit 11 for broadcasting. to make it easier for people to get.

Still further, the weighing instrument also includes a storage device 12 , and the storage device 12 is connected to the processor 10 in a signal manner.

When weighing, it may be to weigh a series of items, so it needs to be recorded. If you weigh once and record once, it will affect work efficiency. After the storage device 12 is installed, the weighing data can be stored. No need to record multiple times. Improve work efficiency. The storage device 12 may be a flash memory or the like.

The above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. 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 not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (6)

1. a weighing instrument, including pedestal, weighing unit, pressure transducer and weighing circuit board, pressure transducer and weighing electricity Road plate electrical connection, pedestal is provided with accommodation space, it is characterised in that: also include rechargeable battery and wireless charging device, charged electrical Pond, wireless charging device, weighing circuit board are respectively positioned in accommodation space, rechargeable battery electrically connects with wireless charging device respectively, Weighing circuit board electrically connects.

A kind of weighing instrument the most according to claim 1, it is characterised in that: also including pressure switch, pressure switch is arranged at Electrically connect below weighing unit and with weighing circuit board.

A kind of weighing instrument the most according to claim 2, it is characterised in that: pressure switch includes two contacts, two contacts Between be provided with contact and spring；The two ends of spring are connected with contact and pedestal respectively.

A kind of weighing instrument the most according to claim 1, it is characterised in that: weigh circuit board and be provided with signal amplification circuit and place Reason device, weighing instrument also includes display screen, and signal amplification circuit electrically connects with pressure transducer, and processor amplifies electricity with signal respectively Road, rechargeable battery and display screen electrical connection.

A kind of weighing instrument the most according to claim 4, it is characterised in that: also include sound circuit, sound circuit and process Device signal connects.

A kind of weighing instrument the most according to claim 4, it is characterised in that: weighing instrument also includes storing device, stores device It is connected with processor signal.