A high-precision intelligent electronic balance

Abstract

The present invention relates to the field of electronic balances, and in particular to a high-precision intelligent electronic balance, comprising a casing, a first installation cavity is opened in the middle of a cavity in the casing, a second installation cavity is opened in the casing on one side of the first installation cavity, a weighing sensor is installed on the bottom wall of the first installation cavity, an internal calibration mechanism component is arranged inside a base, and because the internal calibration mechanism component is arranged inside the weighing sensor, the internal calibration mechanism component will not be damaged by collision with other parts during the transportation of the electronic balance, and with the cooperation of the internal calibration mechanism component and an external internal calibration mechanism, an electronic balance with double internal calibration mechanisms is realized, which effectively improves the accuracy and stability of measurement and reduces the influence of environmental factors on the measurement results, and an electronic balance intelligent terminal is arranged, which can store multiple weighing results, so that an operator can directly retrieve each weighing data result through a mobile terminal.

Description

Technical Field

[0001] The invention relates to the technical field of electronic balances, and in particular to a high-precision intelligent electronic balance. Background Art

[0002] ‌An electronic balance is a kind of balance that uses electromagnetic force to balance the weight of the object being weighed. It has the characteristics of accurate and reliable weighing, fast and clear display, and is equipped with automatic detection system, simple automatic calibration device and overload protection device. ‌Electronic balance is widely used in scientific research and industrial production, especially in chemical laboratories and industrial manufacturing, it is a commonly used weighing instrument.

[0003] Some electronic balances are now equipped with internal calibration devices. The function of the internal calibration device is to automatically detect changes in unstable environmental factors during the weighing process, and automatically calibrate at any time to achieve continuous calibration and continuous stable working state, thereby making the measurement result more accurate. However, some internal calibration devices are often set on one side of the weighing sensor. This internal calibration device is often a separate device. When such an internal calibration device is set on one side of the weighing sensor, the weight may often hit the sling reed on one side during transportation, which sometimes causes the sling reed to break, resulting in inaccurate calibration results. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-precision intelligent electronic balance.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-precision intelligent electronic balance comprises a housing, wherein a first installation cavity is provided in the middle of a cavity in the housing, a second installation cavity is provided inside the housing on one side of the first installation cavity, a third installation cavity is provided on the other side of the first installation cavity away from the second installation cavity, a weighing sensor is provided on the bottom wall of the first installation cavity, and an external internal calibration mechanism is provided in the first installation cavity on one side of the weighing sensor;

[0007] The weighing sensor comprises a base, which is mounted on the bottom wall of the first mounting cavity, a mounting opening is provided at the bottom of the base, a magnetic steel component is installed at the mounting opening, and an internal calibration mechanism component is provided on one side of the magnetic steel component of the base;

[0008] The internal calibration mechanism assembly includes a weight bracket, a motor assembly, a motor bracket, a sliding block, and a weight are sequentially installed above the bottom plate of the weight bracket, the motor bracket is installed on the weight bracket, a motor assembly is arranged at the bottom of the motor bracket, a sliding block is vertically inserted at the upper surface of the motor bracket, a weight is placed on the sliding block, a motor adapter is connected to one side of the motor assembly, and the motor adapter is installed on the base;

[0009] A plurality of mounting holes are provided on one side of the bottom plate of the weight bracket, the weight bracket is mounted on the base, support plates are symmetrically arranged on the bottom plate of the weight bracket, a motor bracket is installed between the support plates on both sides, and weights are placed at the semicircular holes on the top of the support plates;

[0010] The upper surface of the motor bracket is symmetrically provided with positioning columns, the motor bracket is provided with a slot vertically penetrating on one side of the positioning columns, an opening is provided on the plate body on one side of the slot at the bottom of the motor bracket, and a motor assembly is provided at the opening;

[0011] The motor assembly includes a stepper motor, which is mounted at the bottom of the motor bracket. A lead screw is driven on the output end of the stepper motor, a lead screw lifting platform is slidably arranged on the lead screw, a connecting shaft is connected to the lead screw lifting platform, and the connecting shaft is movable at the opening;

[0012] A placement cavity is provided on the top of the sliding block, placement grooves are provided on both sides of the placement cavity, and the weights are placed in the placement cavity. A connecting plate is provided at the bottom of the sliding block, the connecting plate is inserted in the slot, a limited sliding opening is provided on the connecting plate, and a connecting shaft is provided to slide at the limited sliding opening.

[0013] In addition, a preferred structure is that a microcomputer is installed in the second installation cavity, and a circuit board is arranged on the front side of the housing located in the first installation cavity;

[0014] The housing has a first interface on one side wall of the third installation cavity, a second interface on one side wall of the housing is located at the second installation cavity, a weighing pan is provided in the middle of the upper surface of the housing, a dust cover is provided on the upper surface of the housing, and a separate operation panel is provided on one side of the housing;

[0015] The circuit board is data-connected with the microcomputer, the weighing sensor and the separated operation panel.

[0016] In addition, a preferred structure is that the weighing pan is located in the middle of the housing, the weighing pan is located above the balance board, the weighing pan includes a base, a weighing platform mounting block is vertically installed in the middle of the base, the bottom of the weighing platform mounting block is connected to the balance board, and a weighing platform is arranged on the top of the weighing platform mounting block;

[0017] A hollow portion is provided on the weighing platform.

[0018] In addition, a preferred structure is that a balance board is installed on the front side of the base, a photoelectric panel is installed on the tail of the base away from the balance board, a cross beam is provided on the photoelectric panel, one end of the cross beam is installed on the photoelectric panel, and the beam body of the cross beam close to the photoelectric panel crosses the magnetic steel assembly, and the other end of the cross beam away from the photoelectric panel crosses the balance board, and a sling spring is connected and installed between the balance board and the cross beam.

[0019] In addition, a preferred structure is that four-corner balance plates are installed on the upper surface of the base, balance springs are provided at the connection between the base and the four-corner balance plates, fulcrum springs are connected to the two side plates of the base located at the other end of the beam away from the photoelectric panel, a beam adapter plate is provided on the beam, a warp adapter plate is connected to one side of the beam adapter plate, and one side of the warp adapter plate is installed on the base.

[0020] In addition, a preferred structure is that the magnetic steel assembly includes a magnetic steel seat, which is installed at the installation port, and a plurality of pads are installed at the bottom of the magnetic steel seat. The magnetic steel seat is sequentially arranged with a magnetic steel, a magnetic steel block, and a coil frame, and a magnetic steel cover is horizontally placed on the upper surface of the magnetic steel seat.

[0021] In addition, a preferred structure is that the circuit board is connected with a display driver, a multifunctional interface circuit, a power management circuit, an analog-to-digital converter, and a weighing sensor, the microcomputer includes a data processing module, a non-volatile memory is provided in the separate operation panel, the data processing module is connected with the non-volatile memory, and the data processing module is used to integrate and store the results measured by the balance into the non-volatile memory;

[0022] The microcomputer includes a data temporary storage module, a data calculation module, and a data query module. The data temporary storage module is used to temporarily store the weighing data results of temporary measurement, the data calculation module is used to ensure the reliability of experimental data, and the data query module is used to query the weighing data results stored in the non-volatile memory;

[0023] The microcomputer is provided with a wireless module, and the wireless module signal is connected to the electronic balance intelligent terminal.

[0024] In addition, a preferred structure is that the data temporary storage module includes a first temporary storage database, a second temporary storage database, a third temporary storage database, a fourth temporary storage database, and a fifth temporary storage database, and the first temporary storage database, the second temporary storage database, the third temporary storage database, the fourth temporary storage database, and the fifth temporary storage database are used to temporarily store temporary weighing data results of different items, and the first temporary storage database, the second temporary storage database, the third temporary storage database, the fourth temporary storage database, and the fifth temporary storage database are all provided with the first data result, the second data result, and the third data result, and the data temporary storage module is provided with a data confirmation module and a data manipulation language module;

[0025] The first data result, the second data result and the third data result are used to temporarily store three different measurement results of the same object, and the data confirmation module is used to transmit the confirmed accurate data results to the data processing module, and the data manipulation language module is used to add or delete data.

[0026] In addition, the preferred structure is that the electronic balance intelligent terminal includes a cloud server, the electronic balance end transmits data to the cloud server through a wireless module, the electronic balance intelligent terminal includes an operator end, an electronic balance measurement database, an electronic balance data calling module, a data analysis module, and a data analysis log module, and the electronic balance data calling module is used to call different electronic balance measurement databases for query;

[0027] The electronic balance data calling module includes an electronic balance selection instruction and an electronic balance management module. The electronic balance selection instruction is provided with query and date and time selection functions. The query is used to find an electronic balance of a specified model. The date and time selection is used to select an electronic balance added at a specified time. The electronic balance management module is provided with classification, addition, and deletion. Classification is used to classify electronic balances of different models. Addition is used to add an electronic balance of a new model. Delete is used to delete an added electronic balance.

[0028] The electronic balance measurement database includes a data management module, in which a first data storage repository, a second data storage repository, and a third data storage repository are provided. The first data storage repository, the second data storage repository, and the third data storage repository are used to store the weighing data results transmitted from the electronic balance end. The data management module is provided with data editing and deletion, data writing and exporting, and data naming and classification functions. Data editing and deletion are used to edit and delete the data stored in the data management module, data writing and exporting are used to write and export various weighing data in the data management module, and data naming and classification are used to name and classify the data in the data management module.

[0029] In addition, the preferred structure is that the data analysis module includes data comparison, data calculation, and data aggregation, the data comparison is used to compare the various weighing results of the data management module, and the data calculation is used to calculate the weighing results of the data management module;

[0030] The data analysis log module includes log editing and data import. Log editing is used to record the text file of analysis and weighing. Data import is used to import the weighing data results of the data management module into the log text file. The data analysis log module is connected to the log printing command, and the log printing command prints the edited log text file.

[0031] The beneficial effects of the present invention are as follows: by arranging an internal calibration mechanism component inside the base, because the internal calibration mechanism component is arranged inside the weighing sensor, during the transportation of the electronic balance, the internal calibration mechanism component will not collide with other parts and be damaged. With the cooperation of the internal calibration mechanism component and the external internal calibration mechanism, an electronic balance with a double internal calibration mechanism is realized, which effectively improves the accuracy and stability of the measurement and reduces the influence of environmental factors on the measurement results.

[0032] ‌Through the built-in calibration function, the electronic balance can automatically detect environmental changes during the weighing process and calibrate at any time to ensure the accuracy of the measurement results.

[0033] In addition, the dual internal calibration mechanism can also correct deviations by modifying the calibration program parameters, further improving the accuracy and reliability of the measurement.

[0034] The electronic balance intelligent terminal can store multiple weighing results, so that the operator can directly retrieve the weighing data results of each time through the mobile terminal. In this way, the weighing data of the electronic balance can be directly reflected on the user's mobile device terminal, making the electronic balance more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The overall structure of the electronic balance is shown in FIG.

[0036] Figure 2 This is a schematic diagram of the structure of the electronic balance when the dust cover is opened;

[0037] Figure 3 It is a schematic diagram of the structure of the outer casing;

[0038] Figure 4 Schematic diagram of the internal structure of the casing Figure 1 ;

[0039] Figure 5 This is a schematic diagram of the structure after the scale pan is disassembled;

[0040] Figure 6 Schematic diagram of the internal structure of the casing Figure 2 ;

[0041] Figure 7 It is the structural diagram of the weighing sensor;

[0042] Figure 8 This is a schematic diagram of the structure of the weighing sensor after it is disassembled;

[0043] Fig. 9 It is a structural diagram of the bottom of the weighing sensor;

[0044] Fig.10 is a structural diagram of the beam;

[0045] Fig.11 It is a structural schematic diagram of a four-corner balance plate;

[0046] Fig.12 is a schematic diagram of the structure of the base;

[0047] Fig.13 It is a structural diagram of the internal calibration mechanism components and the circuit connection board in a connected state;

[0048] Fig.14 This is a schematic diagram of the structure after the components of the internal school organization are disassembled;

[0049] Fig.15 is a schematic diagram of the structure of the weight bracket;

[0050] Fig.16 is a schematic diagram of the structure of the motor assembly;

[0051] Fig.17 The structure of the motor bracket is shown in Figure 1. Figure 1 ;

[0052] Fig.18 The structure of the motor bracket is shown in Figure 1. Figure 2 ;

[0053] Fig.19 It is a structural schematic diagram of the sliding block;

[0054] Fig. 20 This is the system diagram for the electronic balance end;

[0055] Fig.21 This is the system diagram of the data temporary storage module;

[0056] Fig. 22 It is a structural diagram of the electronic balance intelligent terminal.

[0057] In the figure: 01, housing; 011, first interface; 012, second interface; 013, first installation cavity; 014, second installation cavity; 015, third installation cavity; 02, weighing sensor; 1, dust cover; 2, separate operation panel; 3, weighing pan; 31, base; 32, weighing platform mounting block; 33, weighing platform; 331, hollow part; 4, circuit board; 5, microcomputer; 6, external internal calibration mechanism; 7, base; 71, installation port; 8, balance board; 9, built-in internal calibration mechanism assembly; 91, weight bracket; 911, installation hole; 912, support plate; 92, motor assembly; 921, stepping motor; 922, lead screw; 923, Screw lifting platform; 924, connecting shaft; 93, motor bracket; 931, slot; 932, positioning column; 933, opening; 94, sliding block; 941, placement slot; 942, placement cavity; 943, connecting plate; 944, limit sliding opening; 95, weight; 10, sling spring; 11, four-corner balance plate; 12, balance spring; 13, magnetic steel assembly; 131, magnetic steel seat; 132, magnetic steel cover; 133, magnet; 134, magnetic steel block; 135, coil frame; 14, fixing part; 15, fulcrum spring; 16, beam; 17, pad; 18, photoelectric panel; 19, warp adapter plate; 20, beam adapter plate. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0059] Reference Figure 1-22 A high-precision intelligent electronic balance includes a housing 01, a first installation cavity 013 is opened in the middle of the cavity of the housing 01, a second installation cavity 014 is opened inside the housing 01 on one side of the first installation cavity 013, a third installation cavity 015 is opened on the other side of the first installation cavity 013 away from the second installation cavity 014, a weighing sensor 02 is installed on the bottom wall of the first installation cavity 013, an external internal calibration mechanism 6 is arranged in the first installation cavity 013 on one side of the weighing sensor 02, and different installation cavities are used to install different electronic components.

[0060] In addition, the weighing sensor 02 includes a base 7, which is installed on the bottom wall of the first installation cavity 013. An installation opening 71 is opened at the bottom of the base 7, and a magnetic steel assembly 13 is installed at the installation opening 71. The base 7 is located on one side of the magnetic steel assembly 13 and is provided with a built-in internal calibration mechanism assembly 9. The built-in internal calibration mechanism assembly 9 is arranged inside the base 7 to prevent the deviation of the internal calibration result due to shaking when it is set outside.

[0061] Moreover, the built-in internal calibration mechanism component 9 includes a weight bracket 91, and a motor component 92, a motor bracket 93, a sliding block 94, and a weight 95 are installed in sequence above the bottom plate of the weight bracket 91. The motor bracket 93 is installed on the weight bracket 91, and the motor component 92 is arranged at the bottom of the motor bracket 93. A sliding block 94 is vertically inserted on the upper surface of the motor bracket 93, and a weight 95 is placed on the sliding block 94. A motor adapter frame 21 is connected to one side of the motor component 92, and the motor adapter frame 21 is installed on the base 7. A plurality of mounting holes 911 are opened on one side of the bottom plate of the weight bracket 91, and the weight bracket 91 is installed on the base 7. Support plates 912 are symmetrically arranged on the bottom plate of the weight bracket 91, and the motor bracket 93 is installed between the support plates 912 on both sides, and weights 95 are placed at the semicircular arc holes on the top of the support plates 912.

[0062] In addition, positioning columns 932 are symmetrically provided on the upper surface of the motor bracket 93, a slot 931 is vertically penetrated through the motor bracket 93 on one side of the positioning column 932, an opening 933 is provided on the plate body on one side of the slot 931 at the bottom of the motor bracket 93, and a motor assembly 92 is arranged at the opening, and the slot 931 facilitates limiting vertical movement.

[0063] Among them, the motor assembly 92 includes a stepper motor 921, which is installed at the bottom of the motor bracket 93. A screw rod 922 is driven on the output end of the stepper motor 921. A screw lifting platform 923 is slidably arranged on the screw rod 922. A connecting shaft 924 is connected to the screw lifting platform 923. The connecting shaft 924 is movable at the opening 933. A placement cavity 942 is provided at the top of the sliding block 94, and placement grooves 941 are provided on both sides of the placement cavity 942. The weight 95 is placed in the placement cavity 942. A connecting plate 943 is provided at the bottom of the sliding block 94. The connecting plate 943 is inserted in the slot 931. A limited sliding opening 944 is provided on the connecting plate 943. The connecting shaft 924 is arranged to slide at the limited sliding opening 944. The connecting shaft 924 enables the sliding block 94 to move vertically up and down.

[0064] At the same time, a microcomputer 5 is installed in the second installation cavity 014, a circuit board 4 is arranged on the front side of the casing 01 located in the first installation cavity 013, a first interface 011 is provided on the side wall of the casing 01 located in the third installation cavity 015, a second interface 012 is provided on the side wall of the casing 01 located in the second installation cavity 014, a weighing pan 3 is provided in the middle of the upper surface of the casing 01, a dust cover 1 is provided on the upper surface of the casing 01, a separate operation panel 2 is provided on one side of the casing 01, the circuit board 4 is data-connected with the microcomputer 5, the weighing sensor 02 and the separate operation panel 2, and the separate operation panel 2 can realize that the heat generated by the separate operation panel 2 during operation will not be transmitted to the casing 01, thereby affecting the weighing sensor 02 and causing deviation in the weighing result.

[0065] At the same time, the weighing pan 3 is located in the middle of the casing 01, and the weighing pan 3 is located above the balance board 8. The weighing pan 3 includes a base 31, and a weighing platform mounting block 32 is vertically installed in the middle of the base 31. The bottom of the weighing platform mounting block 32 is connected to the balance board 8, and a weighing platform 33 is arranged on the top of the weighing platform mounting block 32. A hollow portion 331 is opened on the weighing platform 33. The hollow portion 331 of the weighing platform 33 can reduce the buoyancy difference when placing an object on the weighing platform 33, thereby reducing the air flow that affects the weighing platform 33 when the dust cover 1 is closed.

[0066] In addition, a balance board 8 is installed on the front side of the base 7, a photoelectric panel 18 is installed on the tail of the base 7 away from the balance board 8, a crossbeam 16 is arranged on the photoelectric panel 18, one end of the crossbeam 16 is installed on the photoelectric panel 18, and the beam body of the crossbeam 16 close to the photoelectric panel 18 crosses the magnetic steel assembly 13, and the other end of the crossbeam 16 away from the photoelectric panel 18 crosses the balance board 8, a sling spring 10 is connected and installed between the balance board 8 and the crossbeam 16, and the balance board 8 is used to carry the object to be measured.

[0067] At the same time, four-corner balance plates 11 are installed on the upper surface of the base 7, and balance springs 12 are provided at the connection between the base 7 and the four-corner balance plates 11. The base 7 is located at the other end of the beam 16 away from the photoelectric panel 18 and connected with fulcrum springs 15 on both sides of the plate body. A beam adapter plate 20 is provided on the beam 16, and a warp adapter plate 19 is connected to one side of the beam adapter plate 20. One side of the warp adapter plate 19 is installed on the base 7. The beam 16 is used to support and measure the mass.

[0068] Moreover, the magnetic steel assembly 13 includes a magnetic steel seat 131, which is installed at the installation port 71. A plurality of pads 17 are installed at the bottom of the magnetic steel seat 131. A magnetic steel 133, a magnetic steel block 134, and a coil frame 135 are sequentially arranged in the magnetic steel seat 131. A magnetic steel cover plate 132 is horizontally placed on the upper surface of the magnetic steel seat 131. The magnetic steel 133 is used to generate electromagnetic force.

[0069] At the same time, the circuit board 4 is connected to a display driver, a multi-function interface circuit, a power management circuit, an analog-to-digital converter, and a weighing sensor 02. The microcomputer 5 includes a data processing module. A non-volatile memory is provided in the separate operation panel 2. The data processing module is connected to the non-volatile memory. The data processing module is used to integrate and store the results measured by the balance into the non-volatile memory. The microcomputer 5 includes a data temporary storage module, a data calculation module, and a data query module. The data temporary storage module is used to temporarily store the weighing data results of temporary measurements. The data calculation module is used to ensure the reliability of the experimental data. The data query module is used to query the weighing data results stored in the non-volatile memory. A wireless module is provided on the microcomputer 5. The wireless module signal is connected to the electronic balance intelligent terminal. The wireless module facilitates the connection between the electronic balance and the electronic balance intelligent terminal.

[0070] Among them, the data temporary storage module includes a first temporary storage database, a second temporary storage database, a third temporary storage database, a fourth temporary storage database, and a fifth temporary storage database. The first temporary storage database, the second temporary storage database, the third temporary storage database, the fourth temporary storage database, and the fifth temporary storage database are used to temporarily store temporary weighing data results of different items, and the first temporary storage database, the second temporary storage database, the third temporary storage database, the fourth temporary storage database, and the fifth temporary storage database are all provided with a first data result, a second data result, and a third data result. The data temporary storage module is provided with a data confirmation module and a data manipulation language module. The first data result, the second data result, and the third data result are used to temporarily save three different measurement results of the same item, and the data confirmation module is used to transmit the confirmed accurate data result to the data processing module, and the data manipulation language module is used to add or delete data.

[0071] Moreover, the electronic balance intelligent terminal includes a cloud server, and the electronic balance end transmits data to the cloud server through a wireless module. The electronic balance intelligent terminal includes an operator end, an electronic balance measurement database, an electronic balance data calling module, a data analysis module, and a data analysis log module. The electronic balance data calling module is used to call different electronic balance measurement databases for query.

[0072] In addition, the electronic balance data calling module includes an electronic balance selection instruction and an electronic balance management module. The electronic balance selection instruction is provided with query and date and time selection functions. The query is used to find an electronic balance of a specified model, and the date and time selection is used to select an electronic balance added at a specified time. The electronic balance management module is provided with classification, addition, and deletion. Classification is used to classify electronic balances of different models, addition is used to add electronic balances of new models, and deletion is used to delete added electronic balances.

[0073] Among them, the electronic balance measurement database includes a data management module, and the data management module is provided with a first data storage repository, a second data storage repository, and a third data storage repository. The first data storage repository, the second data storage repository, and the third data storage repository are used to store the weighing data results transmitted from the electronic balance end. The data management module is provided with data editing and deletion, data writing and exporting, and data naming and classification functions. Data editing and deletion are used to edit and delete the data stored in the data management module, data writing and exporting are used to write and export various weighing data in the data management module, and data naming and classification are used to name and classify the data in the data management module.

[0074] At the same time, the data analysis module includes data comparison, data calculation, and data summary. The data comparison is used to compare the weighing results of the data management module, and the data calculation is used to calculate the weighing results of the data management module.

[0075] Among them, the data analysis log module includes log editing and data import. Log editing is used to record the text file of analysis and weighing. Data import is used to import the weighing data results of the data management module into the log text file. The data analysis log module is connected to the log printing command, and the log printing command prints the edited log text file.

[0076] In this embodiment, when using an electronic balance for weighing, the object is placed on the scale pan 3 for weighing, and the dust cover 1 plays a role of dust protection, thereby preventing it from affecting the weighing result. The operator weighs the object on the electronic balance through the separate operation panel 2. When a weighing sensor 02 is connected to the bottom of the scale pan 3 and an object is placed on the scale pan 3, the weighing sensor 02 changes the current of the coil through the controller according to the detected displacement signal to keep the balance so that the coil returns to the center position. The current change is amplified and converted into the mass display of the sample, and then the data is displayed on the display driver.

[0077] By setting the built-in internal calibration mechanism component 9 inside the base 7, the traditional setting method on one side of the weighing sensor 02 is changed to setting it inside the weighing sensor 02, so that the overall weighing sensor 02 can be lengthened, and the length of its beam 16 can be lengthened. In this way, after its torque is lengthened, according to the principle of lever, when it is not weighed for internal calibration, the same deflection angle, compared with the original small-volume weighing sensor 02, the weight increase required for the internal calibration of the lengthened beam 16 will be smaller than the original weight. This means that the higher the sensitivity, the higher the accuracy of the weighing sensor 02, and the smaller the required weight increase, the weight 95 set inside the base 7 can be set smaller than the original weight, so that its size will be smaller, thereby ensuring that it will not shake during transportation, causing damage to the components of the weighing sensor 02.

[0078] When the built-in internal calibration mechanism assembly 9 performs internal calibration, the stepper motor 921 works first, and the stepper motor 921 drives the screw rod 922 to rotate. After the screw rod 922 rotates, the screw rod lifting platform 923 performs linear motion on it, so that the connecting shaft 924 of the screw rod lifting platform 923 performs linear motion, and the connecting shaft 924 moves at the opening 933. While the connecting shaft 924 moves, it slides at the limit sliding opening 944, so that the sliding block 94 inserted at the slot 931, when the connecting shaft 924 slides at the limit sliding opening 944, the sliding block 94 is pushed and under the restriction of the slot 931, the sliding block 94 can only move vertically up and down, so that the weight 95 can move vertically up and down, so that the weight 95 is lifted, and then the weighing sensor 02 can accurately detect the increased mass, and then convert it into an electrical signal for processing. In this way, the electronic balance can complete the calibration process without an external standard weight, thereby saving time and cost, and also avoiding the operational complexity and errors that may be caused by external calibration.

[0079] The external internal calibration mechanism 6 can also be calibrated, and in combination with the internal calibration mechanism assembly 9, the electronic balance is equipped with a dual internal calibration mechanism, which effectively improves the accuracy and stability of the measurement and reduces the impact of environmental factors on the measurement results. Through the built-in calibration function, the electronic balance can automatically detect environmental changes during the weighing process and calibrate at any time to ensure the accuracy of the measurement results. In addition, the dual internal calibration mechanism can also correct deviations by modifying the calibration program parameters, further improving the accuracy and reliability of the measurement.

[0080] After the electronic balance measures the data, the microcomputer 5 obtains the weighing data, and the weighing data first enters the data temporary storage module. After the operator displays the weighing result measured by the weighing sensor 02 on the separate operation panel 2 through the display driver, the operator confirms which value is the accurate weighing data through the data confirmation module. The data temporary storage module will temporarily store the weighing data in the first storage database, the second storage database, the third storage database, the fourth storage database, and the fifth storage database. In this way, each database can store the weighing data results of the same item three times. Then, after the operator selects an accurate weighing data, the weighing data of the item is transmitted to the non-volatile memory through the data processing module of the microcomputer for long-term storage.

[0081] And the microcomputer is connected to the electronic balance intelligent terminal through the wireless module, so that the data stored in the non-volatile memory is synchronized to the electronic balance intelligent terminal. The user can use a mobile phone or a computer to log in to the electronic balance intelligent terminal, so as to directly retrieve the weighing data.

[0082] After the user logs in to the electronic balance intelligent terminal through the user end, the electronic balance data call module can be used to select the electronic balance that has been entered, or a new electronic balance can be added to the electronic balance measurement database. These are completed through the electronic balance selection instruction and the electronic balance management instruction. After rotating the required electronic balance, the weighing data that has just been synchronized can be saved to one of the first data repository, the second data repository, and the third data repository through the data management module. This is completed by data writing and exporting, and the weighing data can be marked by data naming and classification. In this way, when searching for data in the future, you can clearly find which weighing result of which item, and delete or edit the weighing data in each data repository through data editing and deletion.

[0083] If the user chooses the data analysis module, he can compare the guaranteed weighing results, and can calculate the data to calculate the sum of several weighing results, and then summarize all the data results, so that users can view multiple weighing data more intuitively.

[0084] In addition, a data analysis log module is set up, and users can fill in logs in the log editor to write down the summary after each data analysis, and then print out the text file through the log print command. They can also insert the viewed data into the log text file through data import.

[0085] Furthermore, the sling spring 10 is mounted by means of a fixing member 14 .

[0086] In the present invention, a built-in internal calibration mechanism component 9 is arranged inside the base. Because the built-in internal calibration mechanism component 9 is arranged inside the weighing sensor 02, during the transportation of the electronic balance, the built-in internal calibration mechanism component 9 will not collide with other parts and be damaged. With the cooperation of the built-in internal calibration mechanism component 9 and the external internal calibration mechanism 6, an electronic balance with a double internal calibration mechanism is realized, which effectively improves the accuracy and stability of the measurement and reduces the influence of environmental factors on the measurement results.

[0087] ‌Through the built-in calibration function, the electronic balance can automatically detect environmental changes during the weighing process and calibrate at any time to ensure the accuracy of the measurement results.

[0088] In addition, the dual internal calibration mechanism can also correct deviations by modifying the calibration program parameters, further improving the accuracy and reliability of the measurement.

[0089] The electronic balance intelligent terminal can store multiple weighing results, so that the operator can directly retrieve each weighing data result through the mobile terminal. In this way, the weighing data of the electronic balance can be directly reflected on the user's mobile device terminal, making the electronic balance more intelligent.

[0090] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision intelligent electronic balance, comprising a housing (01), characterized in that: A first installation cavity (013) is provided in the middle of the cavity in the housing (01), a second installation cavity (014) is provided inside the housing (01) on one side of the first installation cavity (013), a third installation cavity (015) is provided on the other side of the first installation cavity (013) away from the second installation cavity (014), a weighing sensor (02) is installed on the bottom wall of the first installation cavity (013), and an external internal calibration mechanism (6) is provided inside the first installation cavity (013) on one side of the weighing sensor (02); The weighing sensor (02) comprises a base (7), the base (7) being mounted on the bottom wall of the first mounting cavity (013), a mounting opening (71) being provided at the bottom of the base (7), a magnetic steel component (13) being mounted at the mounting opening (71), and a built-in calibration mechanism component (9) being provided on one side of the base (7) located on the magnetic steel component (13); The built-in internal calibration mechanism component (9) comprises a weight bracket (91), a motor component (92), a motor bracket (93), a sliding block (94), and a weight (95) are sequentially mounted above the bottom plate of the weight bracket (91), the motor bracket (93) is mounted on the weight bracket (91), the motor component (92) is disposed at the bottom of the motor bracket (93), a sliding block (94) is vertically inserted at the upper surface of the motor bracket (93), a weight (95) is placed on the sliding block (94), and a motor adapter frame (21) is connected to one side of the motor component (92), and the motor adapter frame (21) is mounted on the base (7); A plurality of mounting holes (911) are provided on one side of the bottom plate of the weight bracket (91), the weight bracket (91) is mounted on the base (7), support plates (912) are symmetrically arranged on the bottom plate of the weight bracket (91), a motor bracket (93) is mounted between the support plates (912) on both sides, and weights (95) are placed at the semicircular holes on the top of the support plates (912); The upper surface of the motor bracket (93) is symmetrically provided with positioning columns (932); a slot (931) is vertically penetrated and provided on one side of the positioning column (932) of the motor bracket (93); an opening (933) is provided on a plate body at the bottom of the motor bracket (93) and located on one side of the slot (931); a motor assembly (92) is provided at the opening; The motor assembly (92) comprises a stepper motor (921), the stepper motor (921) being mounted at the bottom of the motor bracket (93), a screw rod (922) being driven on the output end of the stepper motor (921), a screw rod lifting platform (923) being slidably disposed on the screw rod (922), a connecting shaft (924) being connected to the screw rod lifting platform (923), and the connecting shaft (924) being movably disposed at the opening (933); The sliding block (94) has a placement cavity (942) at the top, placement grooves (941) at both sides of the placement cavity (942), the weight (95) is placed in the placement cavity (942), a connecting plate (943) is provided at the bottom of the sliding block (94), the connecting plate (943) is inserted in the slot (931), a limited sliding opening (944) is provided on the connecting plate (943), and the connecting shaft (924) is arranged to slide at the limited sliding opening (944).

2. A high-precision intelligent electronic balance according to claim 1, characterized in that: A microcomputer (5) is installed in the second installation cavity (014), and a circuit board (4) is arranged on the front side of the housing (01) located in the first installation cavity (013); The housing (01) is provided with a first interface (011) on a side wall located at one side of the third installation cavity (015), the housing (01) is provided with a second interface (012) on a side wall located at one side of the second installation cavity (014), a weighing pan (3) is provided in the middle of the upper surface of the housing (01), a dust cover (1) is provided on the upper surface of the housing (01), and a detachable operation panel (2) is provided on one side of the housing (01); The circuit board (4) is data-connected to the microcomputer (5), the weighing sensor (02), and the separate operation panel (2).

3. A high-precision intelligent electronic balance according to claim 2, characterized in that: The weighing pan (3) is located in the middle of the housing (01), and the weighing pan (3) is located above the balancing plate (8). The weighing pan (3) comprises a base (31), and a weighing platform mounting block (32) is vertically mounted in the middle of the base (31). The bottom of the weighing platform mounting block (32) is connected to the balancing plate (8), and a weighing platform (33) is arranged on the top of the weighing platform mounting block (32); The weighing platform (33) is provided with a hollow portion (331).

4. A high-precision intelligent electronic balance according to claim 1, characterized in that: A balancing plate (8) is installed on the front side of the base (7), a photoelectric panel (18) is installed on the tail of the base (7) away from the balancing plate (8), a crossbeam (16) is arranged on the photoelectric panel (18), one end of the crossbeam (16) is installed on the photoelectric panel (18), and the beam body of the crossbeam (16) close to the photoelectric panel (18) crosses the magnetic steel assembly (13), and the other end of the crossbeam (16) away from the photoelectric panel (18) crosses the balancing plate (8), and a sling spring (10) is connected and installed between the balancing plate (8) and the crossbeam (16).

5. A high-precision intelligent electronic balance according to claim 4, characterized in that: Four corner balancing plates (11) are installed on the upper surface of the base (7), and balancing springs (12) are arranged at the connection between the base (7) and the four corner balancing plates (11). Support springs (15) are connected to the two side plates of the base (7) at the other end of the cross beam (16) away from the photoelectric panel (18). A cross beam adapter plate (20) is arranged on the cross beam (16), and a warp adapter plate (19) is connected to one side of the cross beam adapter plate (20), and one side of the warp adapter plate (19) is installed on the base (7).

6. A high-precision intelligent electronic balance according to claim 1, characterized in that: The magnetic steel assembly (13) comprises a magnetic steel seat (131), the magnetic steel seat (131) being mounted at the mounting opening (71), a plurality of cushion blocks (17) being mounted at the bottom of the magnetic steel seat (131), a magnetic steel (133), a magnetic steel block (134), and a coil skeleton (135) being arranged in sequence in the magnetic steel seat (131), and a magnetic steel cover plate (132) being horizontally placed on the upper surface of the magnetic steel seat (131).

7. A high-precision intelligent electronic balance according to claim 2, characterized in that: The circuit board (4) is connected to a display driver, a multifunctional interface circuit, a power management circuit, an analog-to-digital converter, and a weighing sensor (02); the microcomputer (5) includes a data processing module; a non-volatile memory is provided in the separate operation panel (2); the data processing module is connected to the non-volatile memory; the data processing module is used to integrate and store the results measured by the balance into the non-volatile memory; The microcomputer (5) comprises a data temporary storage module, a data calculation module and a data query module, wherein the data temporary storage module is used to temporarily store weighing data results of temporary measurements, the data calculation module is used to ensure the reliability of experimental data, and the data query module is used to query the weighing data results stored in the non-volatile memory; The microcomputer (5) is provided with a wireless module, and the wireless module signal is connected to the electronic balance intelligent terminal.

8. A high-precision intelligent electronic balance according to claim 7, characterized in that: The data temporary storage module includes a first temporary storage database, a second temporary storage database, a third temporary storage database, a fourth temporary storage database, and a fifth temporary storage database, which are used to temporarily store temporary weighing data results of different items, and the first temporary storage database, the second temporary storage database, the third temporary storage database, the fourth temporary storage database, and the fifth temporary storage database are all provided with the first data result, the second data result, and the third data result, and the data temporary storage module is provided with a data confirmation module and a data manipulation language module; The first data result, the second data result and the third data result are used to temporarily store three different measurement results of the same object, and the data confirmation module is used to transmit the confirmed accurate data results to the data processing module, and the data manipulation language module is used to add or delete data.

9. A high-precision intelligent electronic balance according to claim 7, characterized in that: The electronic balance intelligent terminal includes a cloud server, the electronic balance end transmits data to the cloud server through a wireless module, the electronic balance intelligent terminal includes an operator end, an electronic balance measurement database, an electronic balance data calling module, a data analysis module, and a data analysis log module, and the electronic balance data calling module is used to call different electronic balance measurement databases for query; The electronic balance data calling module includes an electronic balance selection instruction and an electronic balance management module. The electronic balance selection instruction is provided with query and date and time selection functions. The query is used to find an electronic balance of a specified model. The date and time selection is used to select an electronic balance added at a specified time. The electronic balance management module is provided with classification, addition, and deletion. Classification is used to classify electronic balances of different models. Addition is used to add an electronic balance of a new model. Delete is used to delete an added electronic balance. The electronic balance measurement database includes a data management module, in which a first data storage repository, a second data storage repository, and a third data storage repository are provided. The first data storage repository, the second data storage repository, and the third data storage repository are used to store the weighing data results transmitted from the electronic balance end. The data management module is provided with data editing and deletion, data writing and exporting, and data naming and classification functions. Data editing and deletion are used to edit and delete the data stored in the data management module, data writing and exporting are used to write and export various weighing data in the data management module, and data naming and classification are used to name and classify the data in the data management module.

10. A high-precision intelligent electronic balance according to claim 9, characterized in that: The data analysis module includes data comparison, data calculation, and data aggregation. The data comparison is used to compare the weighing results of the data management module, and the data calculation is used to calculate the weighing results of the data management module. The data analysis log module includes log editing and data import. Log editing is used to record the text file of analysis and weighing. Data import is used to import the weighing data results of the data management module into the log text file. The data analysis log module is connected to the log printing command, and the log printing command prints the edited log text file.

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