CN114280487B - Novel voltage acquisition module for single storage battery - Google Patents
Novel voltage acquisition module for single storage battery Download PDFInfo
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Abstract
The application discloses a novel single storage battery voltage acquisition module, which comprises an acquisition unit and a circuit unit, wherein the acquisition unit comprises an acquisition loop, a conversion loop connected with the output end of the acquisition loop and a communication loop connected with the output end of the conversion loop, and the communication loop is provided with a bidirectional communication interface; the circuit unit is connected to the output end of the acquisition loop and comprises a connecting wire and a connecting terminal head arranged at the end part of the connecting wire; the application simplifies the acquisition loop, has low false alarm rate and greatly improves the operation reliability; adopt novel terminal, connect simple to operate, be convenient for later maintenance and maintenance, the trouble is looked up and is handled fast.
Description
Technical Field
The application relates to the technical field of voltage acquisition of single battery packs, in particular to a voltage stabilizing acquisition system of a single storage battery pack.
Background
The single voltage of the direct current storage battery of the transformer substation is generally collected by adopting a plurality of modules, namely, one module collects a plurality of batteries, three-wire collection (namely, 3 wires of 2 batteries) is used, the collected voltage data of the storage battery is communicated with a storage battery inspection instrument through 485 wires from a battery post through a fuse and then is connected into a storage battery collection module through a collection wire, the collected voltage data is displayed on a device in a centralized manner, and the data is uploaded to an upper computer or a background monitoring system. When the collected data is abnormal, the device sends out an alarm signal so as to discover the abnormal condition of the operation of the storage battery in time. By adopting the acquisition mode, the storage battery inspection device has extremely high probability of false alarm in operation due to too many acquisition loop links.
When the acquisition mode is adopted, the abnormal voltage alarm of the storage battery is the most, but the actual voltage of the storage battery is checked to be normal on site. The alarm information is 95% caused by faults of an analog quantity acquisition loop of a single storage battery acquisition circuit, such as poor contact of a fuse, loose wire nose, poor contact of a terminal of an acquisition unit and the like.
Furthermore, since a large number of single storage battery packs are used in the power grid equipment, and voltage data of each battery need to be collected, a large number of wires need to be laid, so that on-site wiring is complex, a large number of collection wires lead to complicated wiring, wiring is messy, unnecessary difficulty is brought to installation and maintenance, and improvement is needed.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned problems associated with the voltage acquisition of the conventional unit storage battery.
Therefore, the application aims to provide a single storage battery voltage stable acquisition system, which aims to solve the problems of high voltage acquisition failure rate and complicated wiring of the single storage battery in the existing power grid.
In order to solve the technical problems, the application provides the following technical scheme: the system comprises a control unit, an acquisition unit and a connection unit, wherein the control unit comprises a control module, a patrol module electrically connected with the control module, an output module and a warning module, and the patrol module inputs acquired patrol signals into the control module; the acquisition unit comprises at least less acquisition modules, and each acquisition module is electrically connected with the inspection module through a communication line; and the connecting unit is connected to the collected output end and comprises a connecting wire and a connecting terminal head arranged at the end part of the connecting wire.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the control unit also comprises a storage module, and the control module stores the input inspection signals and the processing signals in the storage module.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the control module outputs the processed output signal through the output module, and outputs the processed control signal through the warning module.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the acquisition module comprises an acquisition loop, a conversion loop connected to the output end of the acquisition loop, a communication loop connected to the output end of the conversion loop and a power supply conversion loop; the acquisition loop comprises an anode input end and a cathode output end, and the anode input end and the cathode output end are connected with one connecting wire; the communication loop is provided with a bidirectional communication interface; the power supply conversion loop is connected between the positive electrode input end and the negative electrode output end and supplies power to the acquisition loop, the conversion loop and the communication loop respectively.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the communication interface is connected with a communication line.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the terminal head comprises a terminal plate and a limit head matched with the terminal plate.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the wiring board comprises a conductive block and limiting plates symmetrically arranged on two sides of the conductive block; a placing groove is formed in the middle of the conductive block, and a notch of the placing groove is positioned on the side wall of the end part of the conductive block; the plate body of the limiting plate is hollow and is provided with a splicing groove.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the conductive block comprises a first layer plate and a second layer plate, one ends of the first layer plate and the second layer plate are hinged, an acute angle is formed between the first layer plate and the second layer plate, and a torsion spring is sleeved on a hinge shaft of the first layer plate and the second layer plate; the length of the second laminate is greater than that of the first laminate, and the free end of the second laminate has a wedge surface.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: a limiting groove and a limiting sliding groove are also formed in the side wall of the limiting plate, the limiting groove is communicated with the inserting groove, and the limiting sliding groove is positioned on the side wall of the inserting groove; a limiting column is arranged in the limiting groove in a sliding mode, and the axial length of the limiting column is smaller than that of the limiting groove; and a reset spring is arranged in the cavity of the inserting groove.
As a preferable scheme of the voltage stability acquisition system of the single storage battery pack, the voltage stability acquisition system comprises the following components: the limiting end is shaped, the end part of the limiting end is matched and inserted into the inserting groove and is contacted with the reset spring, the side wall of the limiting end is provided with a groove and a limiting protrusion, the groove can be matched with the end part of the limiting column, and the limiting protrusion is matched and slides in the limiting chute; the side wall of the middle part of the limiting end is provided with a matching surface, and the matching surface can be in matched contact with the wedge surface.
The application has the beneficial effects that:
according to the application, the acquisition module controlled by the control unit is used for one-to-one acquisition of the single storage battery, so that the acquisition loop is simplified, the false alarm rate is greatly reduced, and the operation reliability is greatly improved; adopt novel terminal, connect simple to operate, be convenient for later maintenance and maintenance, the trouble is looked for simply fast.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of an overall frame of the voltage stabilizing and collecting system for a single storage battery pack of the present application.
Fig. 2 is a schematic diagram of the working principle of the acquisition module of the voltage stabilizing and acquiring system of the single storage battery pack.
Fig. 3 is a schematic diagram of the overall principle of the voltage stabilizing and collecting system of the single storage battery pack.
Fig. 4 is a schematic diagram of a connection structure between a voltage stabilizing and collecting system of a single storage battery and a storage battery.
Fig. 5 is a schematic diagram of a circuit unit structure of the voltage stabilizing and collecting system of the single storage battery pack.
Fig. 6 is a schematic diagram of a circuit unit separation structure of the voltage stabilizing and collecting system of the single storage battery pack.
Fig. 7 is a schematic diagram of an overall cross-sectional structure of a terminal of the voltage stabilizing and collecting system for the single storage battery pack.
Fig. 8 is a schematic diagram of the overall longitudinal sectional structure of the terminal of the voltage stabilizing and collecting system of the single storage battery.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 to 3, for a first embodiment of the present application, a voltage stabilizing and collecting system for a single battery pack is provided, where the collecting system includes a control unit 100, a collecting unit 200 and a connecting unit 300. The control unit 100 may be a control center of the acquisition system, and has a main control operation for the system, and is used for acquiring, processing and outputting voltage data; the acquisition unit 200 is used for acquiring voltage on the single storage battery D, and is connected with a binding post on the storage battery D through the connection unit 300, and an analog signal acquired by the acquisition unit 200 is finally output to the control unit 100.
Specifically, the control unit 100 includes a control module 101, a patrol module 102 electrically connected with the control module 101, an output module 103 and a warning module 104, where the patrol module 102 inputs collected patrol signals into the control module 101; the control module 101 is a processing center, which can be a processing center formed by manual processing or a computer system, wherein the inspection module 102 is used for voltage acquisition control of the storage battery D, and the output module 103 is used for outputting the output signal processed by the control module 101, specifically, video, image and audio output; the warning module 104 is configured to output a fault signal for prompting the staff to pay attention to the fault signal and to perform maintenance in time.
The acquisition unit 200 comprises at least 1 number of acquisition modules 201, and each acquisition module 201 is electrically connected with the inspection module 102 through a communication line T; the collection unit 200 is composed of a plurality of collection modules 201, in this embodiment, each storage battery D is configured with one collection module 201, so as to avoid data confusion caused by the collection of a plurality of storage batteries D by one collection module 201, and each collection module 201 outputs the collected data to the inspection module 102.
The connection unit 300 is connected to the output end of the acquisition unit 200, and includes a connection wire 301 and a connection terminal 302 disposed at an end of the connection wire 301. The connection wire 301 is a conventional power cable, and the terminal head 302 is connected to the connection wire 301 and can be clamped on a terminal post of the storage battery D in a matching manner for input connection of the cable.
Further, the control unit 100 further includes a storage module 105, and the control module 101 stores the input inspection signal and the processing signal in the storage module 105. The storage module 105 is used for storing data, which includes the original data input by the inspection module 102 and the data processed by the control module 101, so as to facilitate the change before and after the voltage acquisition.
The control module 101 outputs the processed output signal through the output module 103, and outputs the processed control signal through the warning module 104.
The acquisition module 201 comprises an acquisition loop 201a, a conversion loop 201b connected to the output end of the acquisition loop 201a, a communication loop 201c connected to the output end of the conversion loop 201b, and a power conversion loop 201d; the acquisition circuit 101 is configured to acquire an analog signal of the battery D, output the analog signal to the conversion circuit 102, and the conversion circuit 102 outputs the converted digital signal to the communication circuit 103, where the communication circuit 103 outputs data via the communication port 103a via the communication line T.
Further, the collecting circuit 201a includes a positive input terminal 201a-1 and a negative output terminal 201a-2, and the positive input terminal 201a-1 and the negative output terminal 201a-2 are connected to a connecting line 301; the communication loop 201c has a bi-directional communication interface a; and the communication interface A is connected with the communication line T.
The power conversion circuit 201d is connected between the positive input terminal 201a-1 and the negative output terminal 201a-2, and supplies power to the collection circuit 201a, the conversion circuit 201b and the communication circuit 201c, respectively. The operation of the acquisition module 201 is powered by a power conversion circuit 201D, the power conversion circuit 201D and the acquisition circuit 201a share the connection unit 300, and electric energy is obtained from the storage battery D to supply power to each circuit in the acquisition module 201.
When the acquisition system is in use, the control module 101 controls the inspection module 102 to send out a voltage acquisition signal, and the control signal is sent out by the communication line T to control each acquisition module 201 to acquire voltage. Specifically, the collecting circuit 201a is connected with the positive terminal and the negative terminal of the storage battery D through the positive input end 201a-1 and the negative output end 201a-2, the collected voltage signals are output to the converting circuit 201b to be converted into digital signals, the converted digital signals are output to the communication circuit 201c, the communication circuit 201c sends data to the inspection module 102 through the communication interface a and the communication line T, the data is processed by the data input control module 101, the data is stored by the storage module 105, and the output module 103 outputs and displays the data.
Example 2
Referring to fig. 4 to 8, a second embodiment of the present application is different from the first embodiment in that: terminal block 302 includes a terminal block 302a and a limit block 302b cooperatively disposed at an end of terminal block 302 a.
The wiring board 302a comprises a conductive block 302a-1 and limiting plates 302a-2 symmetrically arranged on two sides of the conductive block 302 a-1; a placing groove F is formed in the middle of the conductive block 302a-1, and a notch of the placing groove F is positioned on the side wall of the end part of the conductive block 302 a-1; the body of the limiting plate 302a-2 is hollow and has a socket C.
The conductive block 302a-1 comprises a first layer plate 302a-11 and a second layer plate 302a-12, one ends of the first layer plate 302a-11 and the second layer plate 302a-12 are hinged, an acute angle is formed between the two layer plates, and a torsion spring 302a-13 is sleeved on a hinge shaft of the two layer plates; the second plies 302a-12 have a length that is greater than the length of the first plies 302a-11 and the free ends of the second plies 302a-12 have a wedge surface K.
The side wall of the limiting plate 302a-2 is also provided with a limiting groove W and a limiting sliding groove Y, the limiting groove W is communicated with the inserting groove C, and the limiting sliding groove Y is positioned on the side wall of the inserting groove C; a limiting column Z is arranged in the limiting groove W in a sliding mode, and the axial length of the limiting column Z is smaller than that of the limiting groove W; the cavity of the inserting groove C is internally provided with a return spring H.
The limiting end 302B is U-shaped, the U-shaped end of the limiting end is matched and inserted into the inserting groove C and is contacted with the reset spring H, a groove U and a limiting protrusion B are arranged on the side wall of the limiting end, the groove U can be matched with the end of the limiting column Z, and the limiting protrusion B is matched and slides in the limiting chute Y; the U-shaped middle side wall of the limiting end 302b is provided with a matching surface 302b-1, and the matching surface 302b-1 can be in matched contact with the wedge surface K.
In comparison with embodiment 1, further, the terminal head 302 is used for stable connection with the terminal of the battery D, and comprises a terminal plate 302a and a limiting head 302b made of conductive metal, specifically, the middle part of the terminal plate 302a is a conductive block 302a-1, and the limiting plates 302a-2 on both sides are connected with the first layer plate 302a-11 in the conductive block 302a-1 into a whole, that is, the first layer plate 302a-11 and the limiting plates 302a-2 on both sides form a groove cavity structure, and the second layer plate 302a-12 is movably hinged above the first layer plate 302a-11, and the total thickness of the conductive block 302a-1 is greater than the thickness of the limiting plates 302a-2, so that the conductor in the terminal plate 302a can always contact with the conductor in the terminal of the battery during connection with the terminal. The length of the plate body of the second plate 302a-12 is longer than that of the first plate 302a-11, so that the wedge surface K at the free end of the second plate can be guaranteed to be just in fit contact with the matching surface 302b-1 in the middle of the limiting plate 302a-2, and the limiting end 302b is kept to be stably inserted into the inserting groove C of the limiting plate 302 a-2.
Furthermore, the limiting plates 302a-2 on two sides are provided with a plugging slot C along the length direction, the side walls of the limiting plates 302a-2 are also provided with a limiting slot W, the limiting slot W is perpendicular to the plugging slot C and is communicated with the plugging slot C, a limiting column Z is movably arranged in the limiting slot W, the total length of the limiting column Z is greater than the length of a slot cavity of the limiting slot W, namely one end of the limiting column Z extends into the plugging slot C or the other end extends into the limiting slot W, and one end of the limiting column Z extends out of the limiting slot W and can be in contact with the side walls of the second laminates 302 a-12. The other end of the limiting column Z is matched in the groove U on the side wall of the limiting end head 302b, so that stable wiring is realized.
Further, the side wall of the slot body of the plugging slot C is further provided with a limiting sliding slot Y, so that limiting protrusions B on two side walls of the limiting end 302B slide in the range of a slot cavity of the limiting protrusion B, under the action of a reset spring H, the limiting end 302B can be restored to the end position of the wiring board 302a from an extruded state, when the limiting end 302B is free to move, the notch of the placing slot F is opened, the limiting protrusion Y is conveniently placed on the wiring terminal of the storage battery D, and when the second layer plate 302a-12 is buckled, the limiting end 302B is extruded, so that the notch of the placing slot F is reduced and enclosed on the outer side of the wiring terminal.
The rest of the structure is the same as that of embodiment 1.
In use, as shown in fig. 4-8, in the free end state, the spacing end 302b is located at the outermost side of the socket C of the wiring board 302 a; the second layer plate 302a-12 is sprung up under the action of the torsion spring 302a-13, so that the side wall of the second layer plate 302a-12 does not squeeze the limit column Z, and the limit column Z can move in the limit groove W; the placing groove F in an open state is sleeved on the wiring terminal of the storage battery D, so that the placing groove F in the middle of the conductive block 302a-1 is spliced on the outer side of the wiring terminal column body. The fastening nut on the wiring terminal is screwed, in the process, the side wall of the nut extrudes the second layer plate 302a-12 to deflect, the wedge surface K of the free end of the second layer plate 302a-12 is in fit contact with the matching surface 302b-1 in the middle of the limiting plate 302a-2 in the gradual deflection process, the limiting plate 302a-2 is extruded to be inserted into the groove body of the inserting groove C, and in the process, the second layer plate 302a-12 extrudes the limiting column Z, so that the other end of the second layer plate 302a-12 is matched in the groove U on the side wall of the limiting end head 302b. At this time, the limiting end 302b cannot be pulled out, so that the connection firmness of the terminal 302 can be ensured.
And during the removal process, when the nut on the terminal is unscrewed, the second layer plate 302a-12 springs up under the action of the torsion springs 302a-13, allowing the terminal head 302 to return to its original state.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (5)
1. A voltage stabilizing and collecting system of a single storage battery pack is characterized in that: comprising the steps of (a) a step of,
the control unit (100) comprises a control module (101), a patrol module (102) electrically connected with the control module (101), an output module (103) and a warning module (104), wherein the patrol module (102) inputs collected patrol signals into the control module (101);
the acquisition unit (200) comprises at least 1 acquisition module (201), and each acquisition module (201) is electrically connected with the inspection module (102) through a communication line (T); the method comprises the steps of,
the connecting unit (300) is connected to the output end of the acquisition module (201) and comprises a connecting wire (301) and a connecting terminal (302) arranged at the end part of the connecting wire (301);
the wiring terminal (302) comprises a wiring board (302 a) and a limit terminal (302 b) which is matched with the end part of the wiring board (302 a);
the wiring board (302 a) comprises a conductive block (302 a-1) and limiting plates (302 a-2) symmetrically arranged on two sides of the conductive block (302 a-1);
a placing groove (F) is formed in the middle of the conductive block (302 a-1), and a notch of the placing groove (F) is positioned on the side wall of the end part of the conductive block (302 a-1);
the plate body of the limiting plate (302 a-2) is hollow and is provided with an inserting groove (C);
the conductive block (302 a-1) comprises a first layer plate (302 a-11) and a second layer plate (302 a-12), one ends of the first layer plate (302 a-11) and the second layer plate (302 a-12) are hinged, an acute angle is formed between the two layer plates, and a torsion spring (302 a-13) is sleeved on a hinge shaft of the two layer plates;
the second ply (302 a-12) has a length greater than the length of the first ply (302 a-11) and the free end of the second ply (302 a-12) has a wedge surface (K);
a limit groove (W) and a limit sliding groove (Y) are further formed in the side wall of the limit plate (302 a-2), the limit groove (W) is communicated with the inserting groove (C), and the limit sliding groove (Y) is positioned on the side wall of the inserting groove (C);
a limiting column (Z) is arranged in the limiting groove (W) in a sliding mode, and the axial length of the limiting column (Z) is smaller than that of the limiting groove (W);
a reset spring (H) is arranged in the cavity of the inserting groove (C);
the limiting end (302B) is U-shaped, the U-shaped end of the limiting end is matched and inserted into the inserting groove (C) and is contacted with the reset spring (H), a groove (U) and a limiting protrusion (B) are formed in the side wall of the limiting end, the groove (U) can be matched with the end of the limiting column (Z), and the limiting protrusion (B) is matched and slides in the limiting chute (Y);
a matching surface (302 b-1) is formed on the side wall of the U-shaped middle part of the limiting end head (302 b), and the matching surface (302 b-1) can be in matched contact with the wedge surface (K).
2. The battery cell pack voltage stabilization acquisition system of claim 1, wherein: the control unit (100) further comprises a storage module (105), and the control module (101) stores the input inspection signals and the processing signals in the storage module (105).
3. The cell battery voltage stabilization acquisition system of claim 2, wherein: the control module (101) outputs the processed output signal through the output module (103), and outputs the processed control signal through the warning module (104).
4. The battery cell pack voltage stabilization acquisition system of claim 3, wherein: the acquisition module (201) comprises an acquisition loop (201 a), a conversion loop (201 b) connected to the output end of the acquisition loop (201 a), a communication loop (201 c) connected to the output end of the conversion loop (201 b), and a power supply conversion loop (201 d);
the acquisition loop (201 a) comprises a positive electrode input end (201 a-1) and a negative electrode output end (201 a-2), and the positive electrode input end (201 a-1) and the negative electrode output end (201 a-2) are connected with one connecting wire (301);
the communication loop (201 c) is provided with a bidirectional communication interface (A);
the power conversion circuit (201 d) is connected between the positive input end (201 a-1) and the negative output end (201 a-2), and supplies power to the acquisition circuit (201 a), the conversion circuit (201 b) and the communication circuit (201 c) respectively.
5. The battery cell pack voltage stabilization acquisition system of claim 4, wherein: the communication interface (A) is connected with the communication line (T).
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