CN208921787U - A kind of earthing test handheld terminal - Google Patents

Abstract

The utility model discloses a kind of earthing test handheld terminals, including shell, control device, control device is arranged in shell, control device includes controller and wireless communication module connected to the controller, module instructs handheld terminal to earthing test device transmission testing and control by wireless communication, the conduction resistance value between the first down conductor and the second down conductor connected to earthing test device to test and earthing test device, in entire earth mat test process, without being linked up by mobile phone or intercom between test job personnel, clamp personnel directly long-range control test process after clamp, it improves work efficiency.

Description

A kind of earthing test handheld terminal

Technical field

The utility model relates to substation ground network testing fields, in particular to a kind of earthing test handheld terminal.

Background technique

The electrical integrity of earthing or grounding means, which refers in earthing or grounding means, should be grounded between various electrical equipments, earthing or grounding means Each section and the electrical connectivity between each equipment, i.e. DC resistance, also referred to as electrically conducting.The ground connection of power equipment Reliable, the effective connection of downlead and earth mat is the basic guarantee of equipment safety operation.Down conductor is power equipment and ground The coupling part of net, during the long-play of power equipment, junction is possible to influence because of factors such as dampness, saves Phenomena such as point is corroded, is even broken causes down conductor and grounded screen tie point resistance to increase, to not be able to satisfy electric power rule The requirement of journey, makes equipment there is hidden danger in operation, will cause the operation of equipment lost territory, also, earthing or grounding means when serious Underground earthing pole and its coupling part corrosion, even phenomenon of rupture may also occur.Therefore, electricity periodically is carried out to earthing or grounding means Gas integrity test is necessary.

To earthing or grounding means carry out electrical integrity test namely test earth mat conducting resistance, be it is a kind of scene repeat, Cumbersome test needs two staff first to draw the p-wire on both sides respectively, and clip, will test at this stage when detecting Instrument operates test by third staff, for the substation that 220kV and 500kV take up a large area, live clamp personnel It is inconvenient to link up with instrument operator, generally require mobile phone or intercom linked up after instrument is controlled by instrument operator again It is tested, and informs test result, such as determine that result is qualified, then replaced test point unlatching and measure next time, it is such as unqualified, then Need to change clamp mode etc. to reach precise measurement effect.Therefore, the working efficiency of such mode is low, and greatly wastes Manpower.

Utility model content

The purpose of this utility model is to provide a kind of earthing test handheld terminals, by remotely controlling connecing for power equipment The continuity test of ground wire and grounded screen, can be improved testing efficiency.

The utility model provides a kind of earthing test handheld terminal, including shell, control device, the control device setting In the shell, the control device includes controller and the wireless communication module that connect with the controller, the hand It holds terminal and testing and control instruction is sent to earthing test device by the wireless communication module.

Optionally, the wireless communication module is described for receiving the conduction resistance value that the earthing test device is sent Handheld terminal further includes the display screen of setting on the housing, and the display screen is connect with the controller, for showing State conduction resistance value.

Optionally, at least one light sensor, the light sensor and the controller are additionally provided on the shell Connection, for detecting ambient light variation, so that the controller adjusts the brightness of the display screen according to the ambient light.

Optionally, the handheld terminal further includes voice broadcast module, and the voice broadcast module and the controller connect It connects, the conduction resistance value sent for broadcasting the earthing test device.

Optionally, be provided on the shell the first via hole for extending vertically through the shell front surface that is arranged successively with And second via hole, the first grip part is formed between first via hole and second via hole.

Optionally, be additionally provided with third via hole on the shell, second via hole be located at first via hole with Between the third via hole, the second grip part is formed between the third via hole and adjacent via hole.

Optionally, the handheld terminal further includes power module and power interface, and the power module includes battery, For being during the test that the handheld terminal is powered, the power module can be filled by the power interface from external power supply Electricity.

Optionally, the wireless communication module is communicated by antenna with the earthing test device, is arranged on the shell Have an antennal interface, the antenna can be inserted into or be removed from the handheld terminal by the antennal interface, thus the antenna with The wireless communication module connects or disconnects.

Optionally, the handheld terminal further includes the storage unit connecting with the controller, is provided on the shell The USB interface being connect with the storage unit, so that the electric conduction that the handheld terminal will save in the storage unit Resistance value exports in the external equipment connecting with the USB interface.

Optionally, the outside of first grip part and second grip part is enclosed with electro-insulating rubber protective layer.

Compared with prior art, by earthing test handheld terminal provided by the utility model, power equipment ground connection is being carried out When downlead and the continuity test of grounded screen, remote controlled earthing test device surveys the conduction resistance value of earth-return circuit Examination, the handheld terminal wirelessly realize the control to ground connection test device, for the substation taken up a large area, solve Live clamp personnel and instrument operator link up that inconvenience, waste of manpower, test process time-consuming is serious asks in the prior art Topic, reduces the working strength of staff, improves work efficiency.

To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, alternative embodiment is cited below particularly, and Cooperate appended attached drawing, is described in detail below.

Detailed description of the invention

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 shows the application schematic diagram of earthing test handheld terminal provided by the utility model；

Fig. 2 shows the schematic diagrames of earthing test handheld terminal；

Fig. 3 shows another schematic diagram of earthing test handheld terminal.

Icon:

Shell -10；Control device -11；Controller -110；Wireless communication module -112；Display screen -201；First conducting Hole -211；Second via hole -212；Third via hole -213；Power interface -220；Battery capacity indication lamp -221；USB interface -222； Antennal interface -223.

Specific embodiment

Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.

It is in the description of the present invention, it should also be noted that, herein, such as first and second or the like pass It is that term is only used to distinguish one entity or operation from another entity or operation, and not necessarily requires or secretly Show that there are any actual relationship or orders between these entities or operation.The terms "include", "comprise" or its What his variant is intended to non-exclusive inclusion, so that including the process, methods of a series of elements, article or setting Standby includes not only those elements, but also including other elements that are not explicitly listed, or further includes for this process, side Method, article or the intrinsic element of equipment.In the absence of more restrictions, limited by sentence "including a ..." Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.It is right For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the absence of conflict, under The feature in embodiment and embodiment stated can be combined with each other.

Grounded screen is made of vertically and horizontally earthing pole, is used for power plant, substation, is had aerial drainage concurrently and is pressed The horizontal mesh earthing or grounding means of effect, and being grounded is that metal between the position that power equipment should be grounded and underground earthing pole is led Body, also referred to as down conductor.Down conductor is the coupling part of power equipment and grounded screen, is transported for a long time in power equipment After row, junction, which is likely to occur corrosion, causes down conductor and grounded screen tie point resistance to increase, and present embodiments provides one Kind of earthing test handheld terminal, the first down conductor that remote controlled field test instrument test is connect with test equipment with And the second conduction resistance value between down conductor, and then the electrical integrity of comprehensive descision power equipment earthing or grounding means.

Earthing test handheld terminal in the present embodiment can be used for remotely controlling live earthing test device and carry out power transformation The down conductor and grounded screen continuity test stood, refering to fig. 1, the handheld terminal include shell 10, control device 11, control dress 11 settings are set inside shell 10, control device 11 includes controller 110 and the wireless communication module connecting with controller 110 112, module 112 instructs handheld terminal to the transmission testing and control instruction of earthing test device, the testing and control by wireless communication Earthing test device can be controlled start test the first down conductor and second that connect at this time with earthing test device and connect Conduction resistance value between ground downlead.

Under a kind of optional application scenarios, earthing test device by test clamp respectively with the first down conductor with And the second down conductor connection, it is constant that test clamp connects one of down conductor, using the first down conductor as Permanent datum, and earthing test device is opened, further, staff carries the handheld terminal, changes another test Wire clamp is connected from different down conductor, errorless and after contacting well in exact p-value wire clamp and down conductor connection, then Testing and control instruction can be sent to earthing test device by the handheld terminal, be connect so that earthing test device starts test two Conduction resistance value between ground downlead.

In above scheme, by the handheld terminal, it can be achieved that long-range control to entire continuity test process, staff It only needs the test clamp for carrying the handheld terminal and connecting with p-wire, test point is followed constantly to move, then it is remote controlled Entire test process starts to test again between test job personnel, live clamp people without being linked up with mobile phone or intercom Member directly can control earthing test device by the handheld terminal after the completion of clamp and start to test, and effectively increase work effect Rate.

Test key is provided on the shell of handheld terminal, test key is connect with controller, test key is being pressed, When key is closed, triggering the controller, module is to the transmission testing and control instruction of earthing test device by wireless communication, to connect Ground test device starts the conduction resistance value tested between two down conductors, and the conduction resistance value of acquisition can be stored directly in In earthing test device, it can also be sent data to by Serial Port Line in the computer being connect with earthing test device, and can pass through Another staff observes the down conductor and another down conductor for the power equipment currently tested in real time before computer Between D.C. resistance, to judge the electrical integrity of the power equipment.

Optionally, it is hand-held that the conduction resistance value that earthing test device obtains can be sent to this by internal radio communication module Terminal, module 112 parses wireless signal to the handheld terminal by wireless communication, and conducting resistance data are sent to control Device 110, as one of embodiment, received conduction resistance value is stored directly in internal storage unit by handheld terminal In, it can be used as data backup, in order to which the later period checks, another embodiment is, referring to Fig.2, in the shell of the handheld terminal It is equipped with display screen 201, display screen 201 is connect with controller, and the conduction resistance value in controller can be direct by display screen 201 It is shown on interface, so as to clamp, personnel are directly viewable test result, wherein display screen 201 can be liquid crystal display.

By the liquid crystal display being arranged on handheld terminal, staff passes through nothing in the position far from test equipment Line mode, which controls, tests the conducting resistance of down conductor, and test result is back to handheld terminal in real time, in hand Conduction resistance value can be directly displayed by holding on the liquid crystal display of terminal, tester is facilitated directly to differentiate, guarantee test peace , it can be achieved that a staff is only needed to complete entire test process under the premise of complete, staff carry the handheld terminal and Test clamp directly controls test process, and obtain test result in real time after the completion of wiring, and can pass through liquid crystal display On resistance value judge the conducting situation of power equipment and grounded screen, convenient test, good portability is easy to operate, reduces work Make the quantity of personnel and the labor intensity of staff, improves work efficiency.

Judge the conducting situation of power equipment and grounded screen specifically, obtaining above by the resistance value on liquid crystal display After getting the conduction resistance value between two down conductors, is compared with continuity test testing regulations, can determine whether and know earth mat Conducting situation.Its conduction resistance value of equipment in order should be in 50m Ω hereinafter, conduction resistance value is 50m Ω -200m Ω Status of equipment it is fine, its variation can be paid close attention in test from now on, important equipment should be checked at the appropriate time Processing, conduction resistance value are that the status of equipment of 200m Ω -1 Ω is bad, if equipment is located at the section, important equipment should be as early as possible Inspection processing, other equipment can inspection at the appropriate time processing, and conducting resistance be 1 Ω or more equipment do not connect with grounded screen then It connects, inspection should handle as early as possible, avoid power equipment lost territory from running, cause safety accident.Therefore, if on discovery liquid crystal display Conduction resistance value test value more than 50m Ω when, verifying should be tested repeatedly.

Optionally, at least one light sensor (not shown go out), the light sensor and controller are additionally provided on shell Connection, the variation of ambient enviroment light can be acquired, and ambient brightness is transmitted in controller, thus controller according to The brightness of the ambient light adjustment display screen 201 of light sensor acquisition, therefore, during the test, the brightness of display screen It can be with surrounding enviroment light automatic regulating lightness, convenient for read test result under various circumstances；Its specific embodiment can With the embodiment referring to the variation of the luminance dynamic of display screen in the prior art, this will not be repeated here.

Optionally, which further includes sound broadcasting device connected to the controller, and controller receives earthing test The conduction resistance value that device returns in real time shows the resistance value on display screen 201, meanwhile, pass through the voice broadcast module The resistance value is broadcasted, during remotely controlling substation ground network continuity test using the handheld terminal, Neng Goutong Step casting test result, tester without observing the test result on display screen, effectively mitigation eye fatigue always；It is specific Embodiment is referred to the embodiment of voice broadcast in the prior art, and this will not be repeated here.

In Fig. 2, hold the terminal device for the ease of staff, set on the shell of the terminal device there are two according to The first via hole 211 and the second via hole 212 of secondary arrangement, the front surface that two via holes extend vertically through shell form two It is a hollow, the first grip part is formed between two via holes, hand can be held in this when holding the terminal device by staff First grip part；It is understood that for the ease of hands grasping, can also be equipped on shell and the first via hole 211, the The identical third via hole 213 of two via hole 212, three via holes are arranged successively, and are formed and are held between two neighboring via hole Portion, third via hole 213 and adjacent via hole form the second grip part, and therefore, during the test, staff can be double Hand holds the handheld terminal, makes to operate more flexible and convenient, and can guarantee that handheld terminal is not fallen in test process.

Further, entire handheld terminal can be made of the epoxide resin material with preferable insulation and mechanical performance, Danger Electric shock risk caused by not having because of equipment leakage is enclosed with electro-insulating rubber in the outside of the first grip part and the second grip part Protective layer, can effective protection staff, prevent from getting an electric shock.

Optionally, refering to Fig. 3, which further includes power module and power interface 220, and power module can be Battery, battery are electrically connected with the modules of handheld terminal, can be powered for the modules of handheld terminal, test In the process without picking up external power supply, battery is connect with the power switch on handheld terminal shell, and when use can pass through power supply The voltage output or disconnection of switch control battery, also, the setting of power interface 220 connects in hull outside and with power module It connects, power interface 220 can be alternating current 220V power interface, can be power module by power interface 220 when the power is insufficient Charging.

Optionally, it is the residue convenient for intuitively showing electricity, battery capacity indication lamp 221, battery capacity indication can be set on shell Lamp 221 is connect with power module, monitors the remaining capacity of power module, battery capacity indication lamp 221 can by different colors come Indicate the electricity of battery current residual, electricity is sufficient normal, and yellow represents current electric quantity lower than the first threshold for example, green represents Value (such as can be 30%), prompting needs to access external power supply and charges, and red represents current electric quantity lower than second threshold (such as can be 5%), electricity wretched insufficiency can be flashed by duration and staff reminded to need external power supply at once, no It can automatic shutdown after then electricity exhausts.

Optionally, storage unit connected to the controller, received conduction resistance value in controller are equipped in handheld terminal On the one hand it is stored directly in storage unit, is on the other hand shown on interface by display screen 201, and be accompanied by voice broadcast Test result, another embodiment are that data saving button is equipped on handheld terminal, which connect with controller, hand Hold terminal controller receive the conduction resistance value of earthing test device transmission after, directly it will be shown on display screen 201, After measured value is stablized, if staff confirms that this test result without obvious exception, can press data and save health care, triggering Controller saves the data in the memory unit.The USB interface 222 connecting with storage unit is equipped in the outside of shell, It, can be complete by test data using USB flash disk or external access arrangement by the USB interface that is connected with storage unit after the completion of test Portion directly exports or the export of optional part.

Optionally, wireless communication module is communicated by realizing between antenna and earthing test device in handheld terminal, with biography The wire transmission mode of system is compared, and wireless transmission is more flexible, and control mode is simpler, and wireless signal can be from wireless communication Transmitter in module is issued to receiver and receives without cable, and the wireless signal of sending is carried out with electromagnetic wave by air It transmits, the wireless signal of wireless communication module reaches antenna from transmitter in the handheld terminal, and antenna is using signal as a series of Electromagnetic radiation is into air, and by air borne, the receiver for being grounded the wireless module in test device receives signal.

Be equipped with antennal interface 223 on handheld terminal, antenna can be inserted into from handheld terminal by the antennal interface 223 or It removes, fast and easy connects or remove antenna, after completing test process, antenna can be removed from handheld terminal and properly protected It deposits, avoids in the handling process damaging antenna.

It should be noted that carrying out exchanging for information between handheld terminal and earthing test device, it is connected on antenna The transceiver of handheld terminal and the transceiver of earthing test device must all be adjusted to identical frequency.

It should also be noted that, module remote-controlled grounding test device measures electric power to the handheld terminal by wireless communication Conduction resistance value between the down conductor and grounded screen of equipment carrys out the grounding connection situation of detection device, can will be measured Data decide whether to carry out subsequent to excavate inspection compared with all previous data by analysis；Optional another application scene is to be grounded Test device is connect with low resistance resistance both ends, by the remote controlled test device of the handheld terminal to the electricity of low resistance resistance Resistance value measures.

It should be appreciated that should also include software program in handheld terminal in the present embodiment, realizes electric current selection, surveys The basic functions such as examination, reset discharge, system setting, handheld terminal shell are equipped with setting button, electric current select button, data and lead Button, involution button etc. out, are electrically connected with controller 110, and electric current select button can be used for selecting different size of current, example Such as 1A, 2A, 5A, 10A, different size of current is applicable to different substation ground network tests, by the electric current select button, Controller 110 sends different testing and control instructions to earthing test device, so that earthing test device internal current source is to set The size of current set is tested, and involution button, which is used to test the last time, carries out self discharge, and the handheld terminal is made to be in original Beginning test mode waits the arrival of test command next time, and the multiple buttons being arranged on shell can be according to each push button function Frequent operation degree is configured arrangement；Its software program is specifically referred to software program in continuity test instrument in the prior art Implementation does not do more repeat herein.

The utility model has the beneficial effects that carrying out power equipment down conductor and ground connection by the handheld terminal When the continuity test of net, remote controlled earthing test device tests the conduction resistance value of earth-return circuit, this is hand-held eventually Wirelessly realize that the control to ground connection test device solves the prior art for the substation taken up a large area in end It is inconvenient that middle scene clamp personnel and instrument operator are linked up, and needs to carry the problem of test equipment gets around, reduces work The working strength for making personnel, improves work efficiency.

The foregoing is merely the alternative embodiments of the utility model, are not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of earthing test handheld terminal, which is characterized in that the handheld terminal includes shell, control device, the control Device is arranged in the shell, and the control device includes controller and the radio communication mold that connect with the controller Block, the handheld terminal send testing and control to earthing test device by the wireless communication module and instruct.

2. handheld terminal according to claim 1, which is characterized in that the wireless communication module is for receiving the ground connection The conduction resistance value that test device is sent, the handheld terminal further include the display screen of setting on the housing, the display Screen is connect with the controller, for showing the conduction resistance value.

3. handheld terminal according to claim 2, which is characterized in that be additionally provided at least one light level on the shell Device, the light sensor are connect with the controller, for detecting ambient light variation, so that the controller is according to Ambient light adjusts the brightness of the display screen.

4. handheld terminal according to claim 3, which is characterized in that the handheld terminal further includes voice broadcast module, The voice broadcast module is connect with the controller, the conduction resistance value sent for broadcasting the earthing test device.

5. according to the described in any item handheld terminals of claim 2-4, which is characterized in that be provided with and be arranged successively on the shell The first via hole and the second via hole for extending vertically through the shell front surface, first via hole leads with described second The first grip part is formed between through-hole.

6. handheld terminal according to claim 5, which is characterized in that third via hole is additionally provided on the shell, it is described Second via hole is between first via hole and the third via hole, the third via hole and adjacent via hole Between form the second grip part.

7. handheld terminal according to claim 6, which is characterized in that the handheld terminal further includes power module and electricity Source interface, the power module include battery, for powering during the test for the handheld terminal, the power module It can be charged from external power supply by the power interface.

8. handheld terminal according to claim 7, which is characterized in that the wireless communication module is connect by antenna with described Ground test device communicates, and antennal interface is provided on the shell, and the antenna can be held by the antennal interface from described Terminal is inserted into or is removed, so that the antenna is connected or disconnected with the wireless communication module.

9. handheld terminal according to claim 2, which is characterized in that the handheld terminal further includes connecting with the controller The storage unit connect is provided with the USB interface connecting with the storage unit on the shell, so that the handheld terminal is by institute The conduction resistance value saved in storage unit is stated to export in the external equipment connecting with the USB interface.

10. handheld terminal according to claim 6, which is characterized in that first grip part and second gripping The outside in portion is enclosed with electro-insulating rubber protective layer.