CN209746547U - Multifunctional calculator for high-voltage test - Google Patents
Multifunctional calculator for high-voltage test Download PDFInfo
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- CN209746547U CN209746547U CN201920984503.5U CN201920984503U CN209746547U CN 209746547 U CN209746547 U CN 209746547U CN 201920984503 U CN201920984503 U CN 201920984503U CN 209746547 U CN209746547 U CN 209746547U
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Abstract
the embodiment of the utility model discloses a multifunctional calculator for high-voltage test, which comprises a calculator main body and a protective cover rotationally connected with the calculator main body, wherein the protective cover and the calculator main body are oppositely provided with fixed components, the calculator main body is provided with a display screen, an operation keyboard is arranged below the display screen, the operation keyboard comprises a key cap and an installation caulking groove which is arranged on the calculator main body and corresponds to the key cap, a pressing column is arranged at the position corresponding to the installation caulking groove in the calculator main body through a spring, the arranged operation keyboard can effectively prevent dirt from entering into the calculator main body from the gap of the key cap through the matching of a dustproof skirt and a dustproof ring when in use, the normal work of the calculator under a complex working environment can be effectively ensured, and the arranged USB interface can lead in a corresponding calculation formula according to the calculation requirement, the method can be suitable for the operation of various complex data, and the calculation efficiency is higher.
Description
Technical Field
The embodiment of the utility model provides a relate to calculator technical field, concretely relates to high-voltage testing uses multi-functional calculator.
Background
The electric power system is an electric energy production and consumption system composed of power plant, transmission and transformation circuit, power supply and distribution station and electricity utilization, and its function is to convert the natural primary energy into electric energy by power generation power device, and then supply the electric energy to each user by transmission, transformation and distribution.
When a high-voltage test is carried out in a power system, a large amount of data calculation is involved, some digital calculation is simple and can be finished by using a traditional calculator, but some calculation involves index or multi-step calculation, such as temperature conversion of insulation resistance and series calculation of capacitance, the operation is complicated, the final result can be obtained by dividing the calculation for many times, so that a large amount of time is needed for data processing on site, an error conclusion is obtained due to artificial calculation errors, and dirt and sweat on the hands of workers in the site test easily enter the calculator from gaps of a calculator keyboard, so that the keyboard is inconvenient to fail and the problem is solved.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a high-voltage testing uses multi-functional calculator, the multinomial calculation project that sets up can directly substitute data and calculate, and the cooperation sets up the dustproof full skirt on the spliced pole, can solve among the prior art adopt traditional calculator to calculate the error that speed is slow and easy appearance data among the electric power high-voltage testing, and traditional calculator influences in order to receive the spot, leads to the malfunctioning problem of keyboard.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
A multifunctional calculator for a high-voltage test comprises a calculator main body and a protective cover which is rotatably connected to the calculator main body, wherein a fixed component is arranged on the protective cover and the calculator main body oppositely, a display screen is arranged on the calculator main body, and an operation keyboard is arranged below the display screen;
operating keyboard includes the key cap and sets up the installation caulking groove in the calculator main part and correspond with the key cap, the calculator main part is inside to correspond position department with the installation caulking groove and has a pressing post through the spring mounting, just be provided with the spliced pole that both ends are pegged graft with pressing post and key cap respectively together in the installation caulking groove, be provided with dustproof full skirt on the spliced pole, still set up two dust collars in the installation caulking groove, be provided with the annular sliding tray that corresponds with dustproof full skirt on the dust collar, two dustproof full skirt passes through respectively annular sliding tray with the both ends sliding connection of dustproof full skirt.
As an optimized scheme of the utility model, dustproof full skirt and spliced pole are one shot forming's injection molding, just there are a plurality of sheetmetal about spliced pole annular array on the dustproof full skirt.
As a preferred scheme of the utility model, the protection is covered and is opened the standing groove that is provided with and corresponds with operating keyboard, set up the observation groove that corresponds with the display screen in the standing groove.
as a preferred scheme of the utility model, fixed subassembly is including offering the fixed slot in the calculator main part and setting up the fixed block that just corresponds with the fixed slot on the protection cover, there is the press lever that is used for closing with the fixed block rigid coupling at the protection cover through spring coupling in the fixed slot.
as an optimized scheme of the utility model, the calculator main part still includes singlechip, USB interface, battery mounting groove, sets up at the temperature and humidity sensor of calculator main part an angle department and corresponds the PCB circuit board that sets up with pressing the post, the USB interface sets up on the lateral wall of calculator main part, just install the battery in the battery mounting groove, the singlechip respectively with USB interface, PCB circuit board and battery electric connection.
the utility model discloses an embodiment has following advantage:
(1) the utility model discloses utilize the operating keyboard that sets up, can cooperate with the dirt ring through dustproof skirt that looses when using, can effectually avoid the spot to get into to calculator main part inside from the gap of key cap, can its work that can be normal under complicated operational environment of effectual assurance.
(2) the utility model discloses a USB interface that sets up can be according to the leading-in formula that corresponds of demand of calculation, and applicable in the operation of various complicated data, avoided when using, adopt traditional calculator to need to calculate many times just can obtain the result, its operational efficiency is low and the wrong problem easily appears.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural view of the present invention;
Fig. 2 is a bottom view of the present invention;
FIG. 3 is a schematic structural diagram of the operation keyboard of the present invention;
fig. 4 is a schematic structural view of the fixing assembly of the present invention;
FIG. 5 is a flow chart of the operation of the present invention;
Fig. 6 is a schematic structural diagram of a calculator operating system according to the present invention.
In the figure:
1-a calculator body; 2-a protective cover; 3-a fixing component; 4-a display screen; 5-operating a keyboard; 6-placing the groove; 7-observation tank; 8, a singlechip; 9-USB interface; 10-battery mounting groove; 11-a temperature and humidity sensor; 12-a PCB circuit board; 13-a storage battery;
301-a fixation slot; 302-fixed block; 303-pressing the lever;
501-keycaps; 502-installation of a caulking groove; 503-pressing the column; 504-connecting column; 505-dustproof umbrella skirt; 506-dustproof ring; 507-annular sliding grooves; 508-metal sheet.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
as shown in fig. 1 to 3, the utility model provides a high-pressure test uses multi-functional calculator, connect visor 2 on calculator main part 1 including calculator main part 1 and rotation, be provided with the torsional spring in calculator main part 1 and visor 2 rotation junction, and then can make visor 2 automatic bullet open under the effect of no external force to the user operates, visor 2 and calculator main part 1 are provided with fixed subassembly 3 relatively, be provided with display screen 4 on the calculator main part 1 the below of display screen 4 is provided with operating keyboard 5, and display screen 4 adopts the LCD screen that has backlight, when guaranteeing to use under the stronger condition of outdoor sunshine, still can clearly read the data on the display screen 4.
In addition, the calculator main body 1 further comprises a single chip microcomputer 8, a USB interface 9, a battery mounting groove 10, a temperature and humidity sensor 11 arranged at one corner of the calculator main body 1 and a PCB 12 arranged corresponding to the pressing column 503, the USB interface 9 is arranged on the side wall of the calculator main body 1, a storage battery 13 is arranged in the battery mounting groove 10, the single chip microcomputer 8 is respectively electrically connected with the USB interface 9, the PCB 12 and the storage battery 13, a dustproof grid is arranged on the temperature and humidity sensor 11 to avoid the influence of dust on the temperature and humidity sensor 11, the temperature and humidity sensor 11 can be of an SHT20 type, the detection accuracy can be ensured when the calculator is used, the temperature and humidity sensor 11 carried by the calculator can display the temperature for realizing a test site, the trouble that a hygrometer needs to be carried in the test process is avoided, and the single chip microcomputer 8 arranged by the programming can adopt the single chip microcomputer 8, further, in actual use, the corresponding calculation formula can be input by using the USB interface 9, so that the application range of the USB interface can be greatly improved.
The operation keyboard 5 comprises a key cap 501 and an installation caulking groove 502 which is arranged on the calculator main body 1 and corresponds to the key cap 501, a pressing column 503 is arranged at a position corresponding to the installation caulking groove 502 in the calculator main body 1 through a spring, a connecting column 504 with two ends respectively inserted into the pressing column 503 and the key cap 501 is arranged in the installation caulking groove 502, a dustproof umbrella skirt 505 is arranged on the connecting column 504, the dustproof umbrella skirt 505 and the connecting column 504 are injection molded parts formed in one step, a plurality of metal sheets 508 are arranged on the dustproof umbrella skirt 505 relative to the annular array of the connecting column 504, the dustproof umbrella skirt 505 and the connecting column 504 are of an integrated structure, dust can be prevented from entering the calculator main body 1 from gaps between the dustproof umbrella skirt 505, the arranged metal sheets 508 can play a role of supporting the dustproof umbrella skirt 505, the problem that the dustproof umbrella skirt cannot be spread is avoided, two dustproof rings 506 are further arranged in the installation caulking groove 502, the dustproof ring 506 is provided with an annular sliding groove 507 corresponding to the dustproof umbrella skirt 505, and the two dustproof umbrella skirts 505 are respectively in sliding connection with two ends of the dustproof umbrella skirt 505 through the annular sliding groove 507, namely, the purpose of preventing dust of the calculator is finally achieved through the matching of the dustproof umbrella skirt 505 and the annular sliding groove 507.
use, press down the motion that key cap 501 accessible spliced pole 504 drove and press post 503, spliced pole 504 motion then can drive dustproof umbrella skirt 505 and move in annular sliding tray 507, press post 504 motion then can contact PCB circuit board 12, press post 504 when no external force then can be through automatic re-setting under the effort of extension spring, thereby realize to calculator input command, and the dirt ring 506 that sets up can be dismantled, can be when long-time use, be convenient for the user to clear up the dust of piling up in dirt ring 506, clear up convenience more.
What need supplement is, set up on the visor 2 and put the standing groove 6 that corresponds with operation keyboard 5, set up in the standing groove 6 and have the observation groove 7 that corresponds with display screen 4, standing groove 6 can avoid it to press key cap 501 when the protective cover 2 is closed, is provided with transparent ya keli board in the observation groove 7, can be convenient for the user to watch time, date, temperature, humidity and some other information that show on the display screen when the calculator awaits the opportune moment.
Fixed subassembly 3 is including offering fixed slot 301 on calculator main part 1 and setting on protective cover 2 and the fixed block 302 that corresponds with fixed slot 301, there is the press lever 303 that is used for closing with fixed block 302 rigid coupling at protective cover 2 through spring coupling in fixed slot 301, when the protective cover is closed, can make the fixed block imbed to the fixed slot in to can realize the fixed to the fixed block under the effect of spring by the press lever, and when pressing the press lever, can make the fixed block break away from and press the gomphosis of press lever, and then can be by the visor under its torsional spring effect of rotating the junction, realize the automation of visor and bounce out.
As shown in fig. 5 and 6, the operation flow includes the following steps:
step S100, opening a protective shell and starting the calculator;
step S200, selecting corresponding calculation items according to needs;
Step S300, measuring to obtain required calculation data, and inputting the calculation data into a calculator;
and S400, substituting the data into a formula corresponding to the calculation item to obtain a calculation result.
according to step S200, the calculation items at least include aluminum winding direct current resistance, copper winding direct current resistance, insulation resistance, and series capacitance.
The conversion formula of the direct current resistance of the aluminum winding is as follows: r2 ═ R1(T + T2)/(T + T1), where R1, R2 are resistance values at temperatures T1, T2, respectively, and T is a temperature field and takes the value of 225;
The conversion formula of the direct current resistance of the copper winding is as follows: r2 ═ R1(T + T2)/(T + T1), where R1 and R2 are resistance values at temperatures T1 and T2, respectively, and T is a temperature field and takes the value of 235;
The conversion formula of the insulation resistance is as follows:
The formula of the series value of the series capacitor is as follows: the tandem value is C1 × C2/(C1+ C2).
the calculation formulas of the deviation values of the direct current resistance of the aluminum winding, the direct current resistance of the copper winding and the insulation resistance are as follows: (reduced value-history value) ÷ history value × 100%, and the deviation value of the series capacitance is calculated by the formula: (values in tandem-Cn)/Cn X100%.
The calculation items in the calculator can be expanded according to requirements, so that when certain data is calculated, the calculated data result can be directly obtained after basic parameters are input, the calculation is more convenient, the problems that the traditional calculation mode needs multiple operations, the calculation amount is large, and errors are easy to occur can be avoided.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. The multifunctional calculator for the high-voltage test is characterized by comprising a calculator main body (1) and a protective cover (2) which is rotatably connected to the calculator main body (1), wherein a fixing component (3) is oppositely arranged on the protective cover (2) and the calculator main body (1), a display screen (4) is arranged on the calculator main body (1), and an operation keyboard (5) is arranged below the display screen (4);
Operating keyboard (5) include key cap (501) and set up on calculator main part (1) and installation caulking groove (502) that correspond with key cap (501), calculator main part (1) is inside to correspond position department with installation caulking groove (502) and to have through spring mounting and press post (503), just be provided with both ends in installation caulking groove (502) respectively with press post (503) and key cap (501) spliced together spliced pole (504), be provided with dustproof full skirt (505) on spliced pole (504), still be provided with two dirt proof ring (506) in installation caulking groove (502), be provided with annular sliding tray (507) that correspond with dustproof full skirt (505) on dirt proof ring (506), two dustproof full skirt (505) pass through respectively annular sliding tray (507) with the both ends sliding connection of dustproof full skirt (505).
2. The multifunctional calculator for high pressure test of claim 1, wherein the dust-proof shed (505) and the connecting column (504) are injection-molded parts formed in one piece, and the dust-proof shed (505) has a plurality of metal sheets (508) in an annular array with respect to the connecting column (504).
3. The multifunctional calculator for the high voltage test according to claim 1, wherein a placing groove (6) corresponding to the operation keyboard (5) is formed in the protective cover (2), and an observation groove (7) corresponding to the display screen (4) is formed in the placing groove (6).
4. the multifunctional calculator for the high-voltage test according to claim 1, wherein the fixing assembly (3) comprises a fixing groove (301) formed in the calculator body (1) and a fixing block (302) arranged on the protection cover (2) and corresponding to the fixing groove (301), and a pressing rod (303) fixedly connected with the fixing block (302) when the protection cover (2) is closed is connected to the fixing groove (301) through a spring.
5. The multifunctional calculator for the high voltage test according to claim 1, wherein the calculator main body (1) further comprises a single chip microcomputer (8), a USB interface (9), a battery installation groove (10), a temperature and humidity sensor (11) arranged at one corner of the calculator main body (1) and a PCB (printed circuit board) (12) correspondingly arranged with the pressing column (503), the USB interface (9) is arranged on the side wall of the calculator main body (1), a storage battery (13) is installed in the battery installation groove (10), and the single chip microcomputer (8) is electrically connected with the USB interface (9), the PCB (printed circuit board) (12) and the storage battery (13) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984503.5U CN209746547U (en) | 2019-06-27 | 2019-06-27 | Multifunctional calculator for high-voltage test |
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| CN201920984503.5U CN209746547U (en) | 2019-06-27 | 2019-06-27 | Multifunctional calculator for high-voltage test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110134635A (en) * | 2019-06-27 | 2019-08-16 | 广东电网有限责任公司 | A kind of high-potting multifunctional calculator and its operation process |
| CN111061994A (en) * | 2019-12-16 | 2020-04-24 | 武汉轻工大学 | Calculation method and device for function derivation, calculation equipment and storage medium |
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2019
- 2019-06-27 CN CN201920984503.5U patent/CN209746547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110134635A (en) * | 2019-06-27 | 2019-08-16 | 广东电网有限责任公司 | A kind of high-potting multifunctional calculator and its operation process |
| CN111061994A (en) * | 2019-12-16 | 2020-04-24 | 武汉轻工大学 | Calculation method and device for function derivation, calculation equipment and storage medium |
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