CN216209345U

CN216209345U - Voltage acquisition line conversion interface device for storage battery

Info

Publication number: CN216209345U
Application number: CN202122760787.XU
Authority: CN
Inventors: 张海军; 唐成达; 秦大海; 王先洪; 孙宁; 张秘; 钟易; 贾祖强; 江森林; 李娜
Original assignee: State Grid Sichuan Electric Power Co Ltd
Current assignee: State Grid Sichuan Electric Power Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-05
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a voltage acquisition line conversion interface device for a storage battery, which comprises a shell with an opening at the bottom, wherein a first through hole for fixing an input interface, a second through hole for fixing a first output interface and a third through hole for fixing a second output interface are formed in the shell, a receiving end of the input interface is connected with two ends of the storage battery through an acquisition line, output ends of the first output interface and the second output interface are respectively connected with a voltage polling instrument and a discharging instrument through acquisition lines, and an output end of the input interface is respectively connected with receiving ends of the first output interface and the second output interface. When the checking discharge test is carried out, the link of taking down the polar column caps at the two ends of the storage battery can be saved, and the phenomena of personal electric shock accidents and storage battery short circuit caused by artificial wiring reasons are completely avoided.

Description

Voltage acquisition line conversion interface device for storage battery

Technical Field

The utility model relates to the technical field of storage battery voltage acquisition, in particular to a voltage acquisition line conversion interface device for a storage battery.

Background

At present, a storage battery pack is used as an independent energy storage power supply, is widely applied to industries such as electric power and communication in recent years, is used as an electric power backup in emergency, and when an alternating current system of a transformer substation breaks down to cause a paralysis of an alternating current power supply system, the storage battery pack can be ensured to be put into use in time to realize the uninterrupted operation of load equipment, so that the system has short-time power-loss ride-through capability, and precious time is provided for fault handling. Under normal conditions, the storage battery pack is in a floating charge mode, but long-term floating charge causes performance reduction due to the fact that a polar plate is vulcanized and dehydrated, and further the backup running time of the storage battery as a standby power supply is influenced, so that the periodic checking discharge test of the direct-current storage battery pack is particularly important, the running performance of the storage battery pack can be accurately judged, and the storage battery pack can realize reliable and long-term electric quantity supply when a power supply system fails.

At present, a professional needs to monitor parameters such as the terminal voltage of the storage battery pack, the voltage of a single storage battery, the discharge current and the like in real time when the checking discharge test of the storage battery pack is carried out. Wherein the connection requirement of battery cell test wire is very strict, and does not have concentrated battery voltage acquisition conversion interface arrangement, can only connect one by one according to the colour of connecting wire, in case the connection order is in disorder, will cause discharge tester battery cell voltage to gather incorrectly, and this process occupies plenty of time and human cost, seriously influences whole discharge test work efficiency. In addition, the exposed terminal of the storage battery is easily touched by mistake in the connection process of the test wire, and further, the personal electric shock accident and the short circuit of the storage battery are caused.

With the continuous development and growth of power grids, the operation number of newly-built substations is continuously increased, and the workload of the storage battery checking discharge test is increased by the water rising height. The low working efficiency of the check discharge test of the storage battery needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a voltage acquisition line conversion interface device for a storage battery, which can safely, time-saving and efficiently complete the connection of voltage acquisition lines of single storage batteries of a discharge tester, thereby improving the working efficiency of the nuclear capacity of a storage battery pack.

The utility model is realized by the following technical scheme:

the utility model provides a voltage acquisition line conversion interface arrangement for battery, is equipped with the open-ended casing including the bottom, offer the first through-hole that is used for fixed input interface, the third through-hole that is used for the second through-hole of fixed first output interface and is used for fixed second output interface on the casing, the receiving terminal of input interface is connected with the both ends of battery through the acquisition line, the output of first output interface and second output interface is connected with voltage polling appearance and discharge appearance through the acquisition line respectively, the output of input interface is connected with the receiving terminal of first output interface and second output interface respectively.

In this technical scheme, through with input interface through gathering the line connection battery, output signal divide into two the tunnel, export all the way to the voltage inspection appearance, the other end is exported to the appearance that discharges, when carrying out check discharge test, the appearance that discharges directly tests the battery, can save to take off battery both ends polarity post block link, avoids the people for the reason of working a telephone switchboard to lead to the person electric shock accident and battery short circuit phenomenon completely.

As optimization, a PCB is arranged inside the shell, an input pin, a first output pin and a second output pin which are connected with the input interface, the first output interface and the second output interface are arranged on the PCB respectively, and the input pin is connected with the first output pin and the second output pin in a one-to-one correspondence manner.

Therefore, the circuit connection is carried out through the PCB, the disorder of the electric wires inside the shell can be avoided, and the circuit inside the whole shell is clear and concise.

Preferably, the input pin and the first output pin are both 26P pins, and the second output pin is a 2 x 13P pin.

Thus, the use area of the PCB board can be reduced.

As an optimization, the input interface and the first output interface are plug-in PCB wiring plugs, the second output interface is an aviation plug, the plug-in PCB wiring plugs are directly plugged on the PCB, and the aviation plug is connected with the PCB through a conversion line.

Therefore, the input interface of the discharge instrument is also an aviation plug, and is consistent with the discharge instrument, so that the plug types at two ends of the connecting wire are simplified.

Preferably, the conversion line comprises a flat cable, one end of the flat cable is fixedly connected with an insert row which is matched and spliced with the second output pin, and the other end of the flat cable is fixedly connected with the aviation plug.

Therefore, signals of the PCB are input into the aviation plug through the conversion line, and the connection line inside the shell is optimized.

Preferably, the aviation plug is connected with the shell through a connecting assembly.

As an optimization, the coupling assembling include the screw and with the nut that the screw matches, seted up on the casing with the fourth through-hole that the screw matches, be equipped with on the aviation plug with the fixed orifices that the fourth through-hole matches, screw and nut pass through fourth through-hole and fixed orifices will the aviation plug is fixed on the casing.

Thus, the aviation plug can be prevented from shaking.

As optimization, the aviation plug is CX24-26 in model.

Thus, the model is a conventional model on the market and is easy to purchase.

Preferably, the opposite side walls of the shell are respectively provided with a support lug, and a fifth through hole for fixing the shell is arranged through the support lugs vertically.

Thus, the housing can be fixed at a position not far from the battery through the support lug and the fifth through hole.

Preferably, the fifth through hole is an elliptical through hole.

Therefore, the fixing position range of the shell is larger due to the oval through hole, and the adaptability is wider.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. when the checking discharge test is carried out, the link of taking down the polar column caps at the two ends of the storage battery can be saved, and the phenomena of personal electric shock accidents and storage battery short circuit caused by artificial wiring reasons are completely avoided.

2. The voltage acquisition box of the discharge instrument can be directly butted with a second output interface of the conversion interface device through an aviation plug to acquire single storage battery voltage signals, the wiring process of checking the colors of the acquisition lines one by one in the traditional scheme is omitted, the wiring time of the voltage acquisition box of the discharge tester is shortened by 57.51 minutes compared with that of the traditional scheme, the average wiring time of the whole checking and capacitance process is shortened to 10.32 minutes from the original 83.76 minutes, and the checking and capacitance wiring efficiency of the storage battery is greatly improved.

3. Due to the application of the voltage acquisition line conversion interface device, the number of operating personnel can be reduced to a certain degree, the nuclear capacity cost is reduced, the stray phenomenon of workers on a working site is avoided, the monitoring work of a working responsible person is facilitated, the safety operation risk is reduced, and the safety risk management and control are better realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a voltage acquisition line conversion interface device for a storage battery according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another orientation;

FIG. 3 is a schematic diagram of a front structure of a PCB;

FIG. 4 is a schematic view of the back of FIG. 3;

fig. 5 is a schematic structural diagram of a switching line.

Reference numbers and corresponding part names in the drawings:

the PCB comprises a shell 1, a second through hole 1a, a third through hole 1b, a fourth through hole 1c, a support lug 1d, a fifth through hole 1e, an input interface 2, a first output interface 3, a second output interface 4, a PCB 5, an input pin 5a, a first output pin 5b, a second output pin 5c, a conversion line 6, a flat cable 6a and a socket 6 b.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

The present embodiment provides a voltage collecting line conversion interface device for storage battery, which can collect the voltage of 24 groups of single storage batteries through collecting line, the connection relationship between collecting line and storage battery is the prior art, as shown in fig. 1-3, the device comprises a housing 1 with an opening at the bottom, a first through hole for fixing an input interface 2, a second through hole 1a for fixing a first output interface 3, and a third through hole 1b for fixing a second output interface 4 are formed on the housing 1, the receiving end of the input interface 2 is connected with both ends of the storage battery through an acquisition line, the output ends of the first output interface 3 and the second output interface 4 are respectively connected with a voltage polling instrument and a discharging instrument through the acquisition line, the output end of the input interface 2 is connected with the receiving ends of the first output interface 3 and the second output interface 4 respectively, and signals received by the input interface are switched to the two paths of the first output interface and the second output interface based on the bifurcation principle.

In this embodiment, casing 1 is inside to be provided with PCB 5, be equipped with on PCB 5 respectively with input interface 2, first output interface 3 and the input pin 5a, first output pin 5b and the second output pin 5c that second output interface 4 is connected, input pin 5a is connected with first output pin 5b and second output pin 5c one-to-one respectively.

In this embodiment, the input pin 5a and the first output pin 5b are both 26P pins, and the second output pin 5c is 2 x 13P pins with a pin pitch of 2.54 mm.

Thus, the use area of the PCB board can be reduced.

In this embodiment, the input interface 2 and the first output interface 3 are plug-in PCB wiring plugs, the second output interface 4 is an aviation plug, the plug-in PCB wiring plugs are directly plugged on the PCB, and the aviation plug is connected with the PCB through the conversion line 6.

In this embodiment, the conversion line 6 includes a flat cable 6a, one end of the flat cable 6a is fixedly connected with an insert strip 6b that is inserted in a matching manner with the second output pin, and the other end of the flat cable 6a is fixedly connected with the aviation plug. The flat cable is a 26-core switching flat cable, and an aviation plug is fixed on a designed shell and is used for being externally connected with a voltage acquisition box of a discharge tester. A double-aviation-plug CX 24-2626-core connector is designed for an external connecting line of a conversion interface device, the two aviation plugs are connected through a 26-core high-flexibility drag chain shielded cable, and the cable and the aviation plugs are welded, so that the butt joint of the voltage acquisition conversion interface device and a voltage acquisition box of a discharge tester can be met.

In this embodiment, the aviation plug is connected with the casing through a connecting assembly.

In this embodiment, coupling assembling include the screw and with the nut that the screw matches, set up on the casing 1 with the fourth through-hole 1c that the screw matches, be equipped with on the aviation plug with the fixed orifices that fourth through-hole 1c matches, screw and nut pass through fourth through-hole 1c and fixed orifices will the aviation plug is fixed on the casing.

Thus, the aviation plug can be prevented from shaking.

In the embodiment, the aviation plug is CX24-26 in model.

Thus, the model is a conventional model on the market and is easy to purchase.

In this embodiment, the opposite side walls of the housing 1 are respectively provided with a support lug 1d, and a fifth through hole 1e for fixing the housing 1 is formed vertically through the support lug 1 d. The shell is made of non-metal materials, is firm and insulated, is fixed on a framework for placing the storage battery by using cross M10 x 20 bolts and nuts, and the length of the fixed position is 30mm more than the size of the device; the left panel of the device is provided with a circular hole with the diameter of 25mm for mounting a 26P aviation socket (CX24-26), and the circular hole is connected with a voltage acquisition box of a discharge tester through a double-female-head aviation patch cord; a129 mm 12mm rectangular first through hole and a 129mm rectangular second through hole are formed in the front panel and the rear panel of the device and are used for installing a primary battery voltage input interface and a first output interface of a background monitoring battery inspection box.

In this embodiment, the fifth through hole 1e is an elliptical through hole.

In the field work, the acquisition conversion interface device directly and oppositely connects the acquisition interface of the inspection box, which is originally connected to the background battery, to the input interface of the device, so that the safety risk of the wiring work of the storage battery body is reduced, and the personal safety of workers is guaranteed. The existing voltage collecting wire from the storage battery body to the storage battery inspection box is used as a voltage signal input, and the device does not need to be additionally provided with a voltage monitoring signal wire on the storage battery body, so that the reconstruction cost is reduced, and the safety and reliability of the storage battery body are enhanced.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a voltage acquisition line conversion interface arrangement for battery, is equipped with open-ended casing (1) including the bottom, its characterized in that, offer the first through-hole that is used for fixed input interface (2), be used for second through-hole (1a) of fixed first output interface (3) and be used for third through-hole (1b) of fixed second output interface (4) on casing (1), the receiving terminal of input interface (2) is connected through the both ends of gathering line and battery, the output of first output interface (3) and second output interface (4) is patrolled and examined the appearance through gathering line and voltage respectively and is connected with the appearance that discharges, the output of input interface (2) is connected with the receiving terminal of first output interface (3) and second output interface (4) respectively.

2. The voltage acquisition line conversion interface device for the storage battery according to claim 1, wherein a PCB (5) is arranged inside the housing (1), the PCB (5) is provided with an input pin (5a), a first output pin (5b) and a second output pin (5c) which are respectively connected with the input interface (2), the first output interface (3) and the second output interface (4), and the input pin (5a) is respectively connected with the first output pin (5b) and the second output pin (5c) in a one-to-one correspondence manner.

3. The interface device according to claim 2, wherein the input pin (5a) and the first output pin (5b) are both 26P pins, and the second output pin (5c) is 2 x 13P pins.

4. The voltage acquisition line conversion interface device for the storage battery according to claim 3, wherein the input interface (2) and the first output interface (3) are plug-in PCB (printed circuit board) connection plugs, the second output interface (4) is an aviation plug, the plug-in PCB connection plugs are directly plugged on the PCB, and the aviation plug is connected with the PCB through a conversion line (6).

5. The voltage acquisition line conversion interface device for the storage battery according to claim 4, wherein the conversion line (6) comprises a flat cable (6a), one end of the flat cable (6a) is fixedly connected with a socket (6b) which is matched and plugged with the second output pin, and the other end of the flat cable (6a) is fixedly connected with the aviation plug.

6. The voltage acquisition line conversion interface device for a storage battery of claim 4 or 5, wherein the aviation plug is connected to the housing by a connection assembly.

7. The voltage acquisition line conversion interface device for the storage battery according to claim 6, wherein the connection assembly comprises a screw and a nut matched with the screw, a fourth through hole (1c) matched with the screw is formed in the housing (1), a fixing hole matched with the fourth through hole (1c) is formed in the aviation plug, and the aviation plug is fixed on the housing through the fourth through hole (1c) and the fixing hole by the screw and the nut.

8. The voltage acquisition line conversion interface device for the storage battery as claimed in claim 7, wherein the model number of the aviation plug is CX 24-26.

9. The voltage acquisition line conversion interface device for the storage battery according to any one of claims 1 to 5, wherein opposite side walls of the housing (1) are respectively provided with a support lug (1d), and a fifth through hole (1e) for fixing the housing (1) is formed vertically through the support lugs (1 d).

10. The voltage acquisition line conversion interface device for the accumulator according to claim 9, characterized in that said fifth through hole (1e) is an elliptical through hole.