CN215116681U - Direct current charge and discharge testing machine of transformer substation - Google Patents

Abstract

The utility model provides a direct current charge-discharge testing machine of transformer substation, including main part subassembly, coupling assembling, display module and protection component: the main body component comprises a shell, a rectifier, a load instrument, a resistor, a diode and a single chip microcomputer; the rectifier is fixedly connected to the inner top wall of the shell, the load instrument is mounted on the inner side wall of the shell, and the resistor is mounted on the inner bottom wall of the shell; the utility model discloses in detect the accurate voltage of monomer battery, the balanced condition of internal resistance and whole group's voltage through the singlechip, utilize the internal resistance database of storage to judge fast whether the battery is unqualified battery, and then confirm the quantity that inserts the diode, finally realize the leaping-over type test to storage battery, until experimental the end, avoided in the testing process need dismantle unqualified monomer battery, not only improved work efficiency, avoided battery short circuit and touching the direct current condition to take place moreover.

Description

Direct current charge and discharge testing machine of transformer substation

Technical Field

The utility model relates to a transformer substation technical field, in particular to direct current charge-discharge testing machine of transformer substation.

Background

The storage battery pack is used as an independent operating power supply, is not influenced by an alternating current power supply, and occupies a very important position in a transformer substation system as a standby power supply, when the conditions of alternating current power loss, bus short circuit and the like are met, the storage battery pack can still continuously work to provide energy, and the storage battery pack has the characteristics of stable voltage, large capacitance and the like, is suitable for being used as an operating power supply for various devices such as complex relay protection devices, breaker transmission and the like, and when a fault occurs, the results of power supply system paralysis, equipment shutdown and the like can be caused.

The existing transformer substation direct current charging and discharging testing machine also has certain problems:

firstly, the existing transformer substation direct current charging and discharging testing machine performs charging and discharging tests on a whole set of storage batteries by adopting a computer, a load meter and a repeater, when unqualified batteries are detected in the tests, the unqualified single batteries need to be disassembled, and then connecting wires are connected, so that the tests can be continued, the process not only reduces the working efficiency, but also easily causes the situations of short circuit and direct current touch of the storage batteries;

two, current transformer substation's direct current charge and discharge testing machine is connected through the mode of pulling out the socket usually with the junction department of connecting wire, uses the back for a long time, and this kind of mode not only makes internal connection terminal damage easily, and the junction appears becoming flexible easily moreover, and then takes place the phenomenon of the short circuit of striking sparks when making the experiment, finally leads to the testing machine to damage, for this reason, provides a transformer substation's direct current charge and discharge testing machine.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a transformer substation dc charging and discharging testing machine, so as to solve or alleviate the technical problem existing in the prior art, and at least provide a beneficial choice.

The embodiment of the utility model provides a technical scheme is so realized: the utility model provides a direct current of transformer substation charge-discharge testing machine, includes main part subassembly, coupling assembling, display module and protection component:

the main body component comprises a shell, a rectifier, a load instrument, a resistor, a diode and a single chip microcomputer;

the rectifier is fixedly connected to the inner top wall of the shell, the load instrument is mounted on the inner side wall of the shell, the resistor is mounted on the inner bottom wall of the shell, the diode is mounted on the inner bottom wall of the shell, and the single chip microcomputer is mounted on the inner side wall of the shell;

coupling assembling is installed to one side of main part subassembly, the last surface mounting of main part subassembly has the display module, the upper surface of main part subassembly articulates there is the protection component.

In some embodiments, the connection assembly includes a first through hole, a first plate, a second through hole, a first rod, a second plate, a third plate, a spring, and a threaded bushing;

two first through holes are symmetrically formed in one side of the shell, a first plate body is welded to the inner side wall of each first through hole, and a second through hole is formed in one side of each first plate body;

a first rod body is connected to the inner side wall of the second through hole in a sliding mode, a second plate body is welded to one end of the first rod body and located inside the shell, and a third plate body is welded to the other end of the first rod body;

a spring is sleeved on the outer side wall of the first rod body, one end of the spring is fixedly connected to one side of the third plate body, and the other end of the spring is fixedly connected to one side of the first plate body;

a threaded sleeve is welded on one side of the shell and is arranged opposite to the first through hole; the connecting component is convenient for connecting the device with an external connecting wire.

In some embodiments, the display assembly includes a recess, a display screen, and a key;

the upper surface of the shell is provided with a groove, the inner bottom wall of the groove is fixedly connected with a display screen, and the inner bottom wall of the groove is provided with a key; data are displayed through the display assembly, and therefore judgment of workers on tests is facilitated.

In some embodiments, an indicator light is fixedly connected to the upper surface of the housing; through observing the pilot lamp for the staff confirms the operating condition of this device.

In some embodiments, a USB interface is mounted on one side of the housing; and the USB interface is convenient for leading out test data after the test is finished.

In some embodiments, the outer sidewall of the threaded sleeve is coated with an insulating layer; the insulating layer can improve the safety of the device when in use.

In some embodiments, the guard assembly includes a hinge, a cover, and a pull tab;

the upper surface of the shell is hinged with a cover body through a hinge and is arranged opposite to the groove, and a pull lug is welded on the upper surface of the cover body; the display screen damage can be avoided to the protective assembly, and then the life of this device is prolonged.

In some embodiments, the rear surface of the housing is provided with third through holes which are distributed at equal intervals; the heat generated in the shell is discharged through the third through hole, and the normal operation of the device is further ensured.

The embodiment of the utility model provides a owing to adopt above technical scheme, it has following advantage:

firstly, the utility model discloses in detect the balanced condition of accurate voltage, internal resistance and whole group's voltage of monomer battery through the singlechip, utilize the internal resistance database of storage to judge fast whether the battery is unqualified battery, and then confirm the quantity of access diode, finally realize the leaping type test to storage battery, until the test is finished, avoided needing to dismantle unqualified monomer battery in the testing process, not only improved work efficiency, avoided the battery short circuit and touched the condition emergence of direct current moreover;

two, the utility model discloses in through connecting wire and threaded sleeve threaded connection, utilize the elastic potential energy of spring for the spring promotes the third plate body and laminates with the terminal of connecting wire all the time, has not only avoided adopting to pull out the mode of inserting to be connected, leads to connecting terminal to damage after long-time the use easily, has still avoided the junction to appear becoming flexible easily, and then has appeared striking sparks the short circuit phenomenon when having avoided the experiment, has finally guaranteed the continuous operation of this device.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a rear view of the housing of the present invention;

FIG. 3 is a left side view of the shell of the present invention;

FIG. 4 is a top view of the housing of the present invention;

fig. 5 is a circuit diagram of the single chip, the diode and the resistor in the present invention.

Reference numerals: 1. a body assembly; 11. a housing; 12. a rectifier; 13. a load meter; 14. a resistance; 15. a diode; 16. a single chip microcomputer; 2. a connecting assembly; 21. a first through hole; 22. a first plate body; 23. a second through hole; 24. a first rod body; 25. a second plate body; 26. a third plate body; 27. a spring; 28. a threaded bushing; 3. a display component; 31. a groove; 32. a display screen; 33. pressing a key; 41. an indicator light; 51. a USB interface; 61. an insulating layer; 7. a guard assembly; 71. a hinge; 72. a cover body; 73. pulling the lug; 81. a third via.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "above" and "overlying" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under" and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-5, the embodiment of the utility model provides a dc charging and discharging testing machine of transformer substation, including main part subassembly 1, coupling assembling 2, display module 3 and protective assembly 7:

the main body component 1 comprises a shell 11, a rectifier 12, a load instrument 13, a resistor 14, a diode 15 and a singlechip 16;

a rectifier 12 is fixedly connected to the inner top wall of the shell 11, a load meter 13 is mounted on the inner side wall of the shell 11, a resistor 14 is mounted on the inner bottom wall of the shell 11, a diode 15 is mounted on the inner bottom wall of the shell 11, and a single chip microcomputer 16 is mounted on the inner side wall of the shell 11;

connecting assembly 2 is installed to one side of main part subassembly 1, and the last surface mounting of main part subassembly 1 has display module 3, and the upper surface of main part subassembly 1 articulates there is protective component 7.

In one embodiment, the connection assembly 2 comprises a first through hole 21, a first plate 22, a second through hole 23, a first rod 24, a second plate 25, a third plate 26, a spring 27 and a threaded sleeve 28;

two first through holes 21 are symmetrically formed in one side of the shell 11, a first plate body 22 is welded to the inner side wall of each first through hole 21, and a second through hole 23 is formed in one side of each first plate body 22;

a first rod body 24 is connected to the inner side wall of the second through hole 23 in a sliding manner, a second plate body 25 is welded to one end of the first rod body 24 and is located inside the shell 11, and a third plate body 26 is welded to the other end of the first rod body 24;

a spring 27 is sleeved on the outer side wall of the first rod 24, one end of the spring 27 is fixedly connected to one side of the third plate 26, and the other end of the spring 27 is fixedly connected to one side of the first plate 22;

a threaded sleeve 28 is welded on one side of the shell 11 and is arranged opposite to the first through hole 21; the spring 27 is arranged to push the third plate 26 to be always attached to the terminal of the external connection line, so that the test interruption caused by the falling of the device and the external connection line is avoided.

In one embodiment, the display assembly 3 includes a recess 31, a display screen 32, and keys 33;

a groove 31 is formed in the upper surface of the shell 11, a display screen 32 is fixedly connected to the inner bottom wall of the groove 31, and a key 33 is mounted on the inner bottom wall of the groove 31; set up display screen 32 and be convenient for the staff and observe experimental data, set up button 33 and be convenient for the staff and set for this device's data, and then guarantee this device's continuous operation.

In one embodiment, an indicator light 41 is fixedly connected to the upper surface of the housing 11; the indicator lamp 41 is provided to facilitate the worker to determine the working state of the device by means of the indicator lamp 41.

In one embodiment, one side of the housing 11 is mounted with a USB interface 51; the provision of the USB interface 51 facilitates the derivation of test data after the test is completed.

In one embodiment, the outer sidewall of the threaded sleeve 28 is coated with an insulating layer 61; the insulating layer 61 is arranged to avoid the phenomenon of electric leakage at the connection line in the charging and discharging process, so that the safety of the device is improved.

In one embodiment, the guard assembly 7 includes a hinge 71, a cover 72, and a pull tab 73;

the upper surface of the shell 11 is hinged with a cover body 72 through a hinge 71 and is arranged opposite to the groove 31, and a pull lug 73 is welded on the upper surface of the cover body 72; the protective assembly 7 is provided to prevent the display screen 32 from being scratched during storage and handling.

In one embodiment, the rear surface of the housing 11 is provided with third through holes 81 which are equidistantly distributed; the third through hole 81 is arranged, so that heat dissipation is convenient for the internal components of the device, and the service life of the device is prolonged.

In this embodiment, the model of the rectifier 12 is MB10F, the model of the load instrument 13 is N6791A, the model of the diode 15 is SMAJ20A, and the model of the single chip microcomputer 16 is ATMEGA 8A-PU.

Working principle and structure principle, in the utility model, one side of the second plate 25 is welded with a wire, before use, pulling the pull tab 73, the pull tab 73 drives the cover 72 to rotate around the hinge 71, and further expose the display screen 32 in the external environment, take the external connecting wire, screw one end of the connecting wire into the threaded sleeve 28, the terminal at one end of the connecting wire pushes the third plate 26 to move, the third plate 26 pushes the first rod 24 to move, the first rod 24 pushes the second plate 25 to move, under the action of the elastic potential energy of the spring 27, one end of the third plate 26 is always attached to the terminal of the connecting wire, the unstable connection at the connecting wire is avoided, the phenomenon of striking sparks is easily occurred, the other end of the connecting wire is connected with the positive and negative poles of the dc battery pack, test data is set through the key 33, the switch is pressed, the device is started, the working state of the device can be observed through the indicator lamp 41, the load instrument 13 measures the voltage and the internal resistance of the storage battery pack, the A/D conversion interface of the single-chip microcomputer 16 detects the accurate voltage, the internal resistance and the balance condition of the whole group of voltage of the single storage battery, the stored internal resistance database is utilized to quickly judge whether the battery is an unqualified battery or not, the judgment result is output through the I/O interface and is repeatedly displayed on the display screen 32, meanwhile, the number of diodes 15 in an access circuit is determined, the crossing detection of the unqualified battery is further realized, meanwhile, the matching resistor 14 is connected in parallel, the balance characteristic of the whole group of direct current batteries is ensured not to be influenced, if the direct current batteries need to be replaced, the device is closed after the replacement is finished, so as to avoid the circuit of the battery pack from being opened, the rectifier 12 converts alternating current into direct current to be stored in the direct current storage battery pack during charging, and after the test is finished, the test data can be led out through the USB interface 51, and further, the characteristics of the storage battery pack can be summarized by workers conveniently.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present invention, which should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides a direct current of transformer substation charge-discharge testing machine, includes main part subassembly (1), coupling assembling (2), display module (3) and protection component (7), its characterized in that:

the main body component (1) comprises a shell (11), a rectifier (12), a load instrument (13), a resistor (14), a diode (15) and a single chip microcomputer (16);

the rectifier (12) is fixedly connected to the inner top wall of the shell (11), the load instrument (13) is installed on the inner side wall of the shell (11), the resistor (14) is installed on the inner bottom wall of the shell (11), the diode (15) is installed on the inner bottom wall of the shell (11), and the single chip microcomputer (16) is installed on the inner side wall of the shell (11);

coupling assembling (2) are installed to one side of main part subassembly (1), the last surface mounting of main part subassembly (1) has display module (3), the upper surface of main part subassembly (1) articulates there is protective component (7).

2. The substation direct current charge and discharge testing machine of claim 1, characterized in that: the connecting assembly (2) comprises a first through hole (21), a first plate body (22), a second through hole (23), a first rod body (24), a second plate body (25), a third plate body (26), a spring (27) and a threaded sleeve (28);

two first through holes (21) are symmetrically formed in one side of the shell (11), a first plate body (22) is welded to the inner side wall of each first through hole (21), and a second through hole (23) is formed in one side of each first plate body (22);

a first rod body (24) is connected to the inner side wall of the second through hole (23) in a sliding mode, a second plate body (25) is welded to one end of the first rod body (24) and located inside the shell (11), and a third plate body (26) is welded to the other end of the first rod body (24);

a spring (27) is sleeved on the outer side wall of the first rod body (24), one end of the spring (27) is fixedly connected to one side of the third plate body (26), and the other end of the spring (27) is fixedly connected to one side of the first plate body (22);

one side of the shell (11) is welded with a threaded sleeve (28) and is opposite to the first through hole (21).

3. The substation direct current charge and discharge testing machine of claim 1, characterized in that: the display component (3) comprises a groove (31), a display screen (32) and a key (33);

the upper surface of casing (11) is seted up recess (31), the inside diapire fixedly connected with display screen (32) of recess (31), button (33) are installed to the inside diapire of recess (31).

4. The substation direct current charge and discharge testing machine of claim 1, characterized in that: and an indicator lamp (41) is fixedly connected to the upper surface of the shell (11).

5. The substation direct current charge and discharge testing machine of claim 1, characterized in that: and a USB interface (51) is arranged on one side of the shell (11).

6. The substation direct current charge and discharge testing machine of claim 2, characterized in that: the outer side wall of the threaded sleeve (28) is coated with an insulating layer (61).

7. The substation direct current charge and discharge testing machine of claim 3, characterized in that: the protection assembly (7) comprises a hinge (71), a cover body (72) and a pull lug (73);

the upper surface of casing (11) through hinge (71) articulated have lid (72) and with recess (31) just to setting up, the upper surface welding of lid (72) has tab (73).

8. The substation direct current charge and discharge testing machine of claim 1, characterized in that: third through holes (81) are formed in the rear surface of the shell (11) and are distributed at equal intervals.

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