A battery cell voltage acquisition and conversion device

Abstract

The present invention relates to the technical field of battery voltage collection, and in particular to a battery cell voltage collection and conversion device, including a battery detection component, a temperature sensor, a detection robot, a robot mobile bracket and a controller; the controller includes the following modules: a collection module: used to make the horizontal bracket move vertically to the first set position on the vertical bracket when the collection information is obtained, and then control the detection robot to move horizontally on the horizontal bracket, so that the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad, and at the same time collect the battery data of the battery cell and the temperature data of the temperature sensor; a conversion module: used to convert the battery data into the battery cell voltage data required by the discharge tester; a communication module: used to send the battery cell voltage data to the discharge tester. The present invention can solve the problems of high failure rate and complicated wiring in the voltage collection of single battery groups in the existing power grid.

Description

Technical Field

[0001] The invention relates to the technical field of battery voltage collection, and in particular to a battery single cell voltage collection and conversion device. Background Art

[0002] The DC system of a substation is called the artery of the substation. It provides power for the switching power supply, relay protection devices and automation equipment of the substation, especially when there is a fault in the power system, it provides reliable power guarantee for the safe operation of the substation. A large number of battery packs composed of single batteries are used in the DC system of the substation. It is necessary to collect the voltage data of each single battery, and a large number of wirings need to be laid, which makes the on-site wiring complicated. In addition, a large number of collection lines make the wiring cumbersome and messy, which brings unnecessary difficulties to installation and maintenance, and the detection cost is high. Summary of the invention

[0003] The purpose of the present invention is to provide a battery cell voltage acquisition and conversion device to solve the problems of high failure rate and complicated wiring of voltage acquisition for single battery groups in the existing power grid.

[0004] In order to achieve the above-mentioned purpose, a battery cell voltage acquisition and conversion device is provided, including a battery detection component, a detection robot, a robot mobile bracket and a controller, the battery detection component includes a bending plate with an L-shaped vertical cross-section and a temperature sensor, the bending plate is provided with an internal circuit connected to the battery cell electrode, the bending plate includes a horizontal plate contacting the upper electrode of the battery cell and a vertical plate contacting the side of the battery cell; the temperature sensor is arranged between the side of the battery cell and the vertical plate, and is used to detect the temperature information of the battery cell; the horizontal plate is provided with a through hole through which the contact battery cell electrode passes, and a first pad is provided around the through hole, the first pad is electrically connected to the internal circuit, and a second pad is provided on the outer side of the vertical plate, The second pad includes an upper pad and a lower pad that are separated, the upper pad is electrically connected to an internal circuit, and the lower pad is electrically connected to a temperature sensor; the robot mobile bracket includes a vertical bracket and a horizontal bracket, the horizontal bracket moves back and forth in a vertical direction on the vertical bracket through a first electric drive wheel, the detection robot is arranged on the horizontal bracket and moves back and forth left and right on it, the detection robot includes a second electric drive wheel and a detection head, the detection head is a sphere, and its left hemisphere and right hemisphere are both conductors and are electrically isolated; the left hemisphere is used to electrically connect to the upper pad, and the right hemisphere is used to electrically connect to the lower pad, the battery detection assembly, the detection robot and the robot mobile bracket are all electrically connected to the controller, and the controller includes the following modules:

[0005] Acquisition module: used to control the first electric drive wheel of the horizontal support according to the acquisition information when acquiring the acquisition information, so that the horizontal support moves vertically to the first set position on the vertical support, and then control the detection robot to move horizontally to the second set position on the horizontal support and stop for a set time, so that the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad, and at the same time, the battery data of the battery cell and the temperature data of the temperature sensor are collected;

[0006] Conversion module: used to convert battery data into battery cell voltage data required by the discharge tester;

[0007] Communication module: used to send battery cell voltage data to the discharge tester.

[0008] Furthermore, the vertical support is provided with a first magnet, and the horizontal support is provided with a first Hall sensor for detecting the first magnet, and the first Hall sensor is electrically connected to the controller.

[0009] Furthermore, a second magnet is provided on the horizontal bracket, and a second Hall sensor for detecting the second magnet is provided on the detection robot. When the second Hall sensor detects the second magnet, the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad; the second Hall sensor is electrically connected to the controller.

[0010] Furthermore, the controller also includes the following modules:

[0011] Battery cell number analysis module: used to use the electromagnetic signals detected by the first Hall sensor and the second Hall sensor as coordinate data of the storage battery cell, and set and save the corresponding battery cell number according to the coordinate data; also used to analyze the corresponding battery cell number according to the coordinate data when the coordinate data is obtained.

[0012] Furthermore, the controller also includes the following modules:

[0013] Temperature anomaly analysis module: used to generate temperature anomaly alarm information when the temperature data exceeds the set threshold.

[0014] Furthermore, the communication module is a 433 MHz wireless transmission module.

[0015] Principles and advantages:

[0016] 1. In this scheme, a battery detection assembly is provided, wherein the bending plate is used to cover the upper surface and one side of the battery cell, which is used to protect the battery cell on the one hand; on the other hand, the circuit is set in the bending plate, which can solve the problem of complex on-site wiring without affecting the normal use of the battery cell; finally, multiple bending plates can be laid into a plane, so that the detection robot can be conveniently electrically connected while moving, thereby facilitating the detection of voltage and temperature at the same time. For example, when it is necessary to collect voltage, the acquisition module controls the first electric drive wheel of the horizontal bracket according to the acquisition information, so that the horizontal bracket moves vertically on the vertical bracket to the first set position, and then controls the detection robot to move horizontally on the horizontal bracket to the second set position and stop for a set time, so that the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad, so that the battery data of the battery cell and the temperature data of the temperature sensor can be collected at the same time. The design of this scheme solves the problem that a large number of acquisition lines lead to cumbersome wiring and messy wiring, which brings inconvenience to installation and maintenance, and has high detection costs and low efficiency.

[0017] 2. This solution converts the battery data into the battery cell voltage data required by the discharge tester through the conversion module; and then sends the battery cell voltage data to the discharge tester through the communication module. This solves the problem of cumbersome and messy wiring caused by conventional voltage data being collected and sent to the discharge tester in a wired manner.

[0018] 3. The setting of the first magnet and the first Hall sensor, and the second magnet and the second Hall sensor can facilitate the detection of the robot reaching the exact position, so as to facilitate accurate measurement. The setting of the battery cell number analysis module can use the electromagnetic signals detected by the first Hall sensor and the second Hall sensor as the coordinate data of the battery cell, further facilitating the detection of the robot reaching the exact position, so as to facilitate accurate measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a logic block diagram of a battery cell voltage acquisition and conversion device according to an embodiment of the present invention;

[0020] Figure 2 This is a front view of a battery cell voltage acquisition and conversion device according to an embodiment of the present invention;

[0021] Figure 3 It is an axonometric view of the battery cell and the bent plate. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The reference numerals in the drawings of the specification include: battery support 1, battery cell 2, vertical support 3, horizontal support 4, detection robot 5, second pad 6, upper pad 7, lower pad 8, electrode 9, horizontal plate 10, vertical plate 11.

[0024] Example

[0025] A battery cell 2 voltage acquisition and conversion device, basically as follows Figure 1 , Figure 2 , Figure 3 As shown, it includes several battery detection components, a detection robot 5, a robot mobile bracket and a controller. Each battery cell 2 is equipped with a battery detection component, which is used to detect the temperature and battery information of the battery cell 2.

[0026] The battery detection assembly includes a bending plate with an L-shaped vertical cross section and a temperature sensor, wherein the bending plate is provided with an internal circuit connected to the electrode 9 of the battery cell 2, and the bending plate includes a horizontal plate 10 contacting the upper electrode 9 of the battery cell 2 and a vertical plate 11 contacting the side of the battery cell 2. Among them, a plurality of battery cells 2 are neatly arranged and installed on the battery bracket 1.

[0027] The temperature sensor is disposed between the side surface of the battery cell 2 and the vertical plate 11 , and is used to detect the temperature information of the battery cell 2 .

[0028] The horizontal plate 10 is provided with a through hole for the electrode 9 of the battery cell 2 to pass through, and a first pad is provided around the through hole, and the first pad is electrically connected to the internal circuit. The outer side of the vertical plate 11 is provided with a second pad 6, and the second pad 6 includes an upper pad 7 and a lower pad 8 that are separated and arranged, and the upper pad 7 is electrically connected to the internal circuit, and the lower pad 8 is electrically connected to the temperature sensor. The robot mobile bracket includes a vertical bracket 3 and a horizontal bracket 4, and the horizontal bracket 4 moves back and forth in the vertical direction on the vertical bracket 3 through the first electric drive wheel. The horizontal bracket 4 can adopt a combination of a conventional screw rod and a stepper motor; or a combination of a stepper motor and a driving wheel group. The detection robot 5 is arranged on the horizontal bracket 4 and moves back and forth on it, including a base, which is specifically divided into a driving part and a detection part. The driving part can adopt a combination of a conventional screw rod and a stepper motor; or a combination of a stepper motor and a driving wheel group. The detection part includes a second electric drive wheel and a detection head. The detection head is a sphere, and its left and right hemispheres are both conductors and are electrically isolated. The left hemisphere is used to electrically connect to the upper pad 7, and the right hemisphere is used to electrically connect to the lower pad 8.

[0029] The vertical support 3 is provided with a first magnet, the horizontal support 4 is provided with a first Hall sensor for detecting the first magnet, and the first Hall sensor is electrically connected to the controller. The horizontal support 4 is provided with a second magnet, and the detection robot 5 is provided with a second Hall sensor for detecting the second magnet. When the second Hall sensor detects the second magnet, the left hemisphere of the detection head contacts the upper pad 7, and the right hemisphere of the detection head contacts the lower pad 8; the second Hall sensor is electrically connected to the controller. The battery detection assembly, the detection robot 5 and the robot moving support are all electrically connected to the controller, and the controller adopts a conventional PLC controller. The controller includes the following modules:

[0030] Acquisition module: used to control the first electric drive wheel of the horizontal support 4 according to the acquisition information when the acquisition information is obtained, so that the horizontal support 4 moves vertically to the first set position on the vertical support 3, and then control the detection robot 5 to move horizontally to the second set position on the horizontal support 4 and stop for a set time, so that the left hemisphere of the detection head contacts the upper pad 7, and the right hemisphere of the detection head contacts the lower pad 8, and at the same time collect the battery data of the battery cell 2 and the temperature data of the temperature sensor;

[0031] Conversion module: used to convert battery data into the battery cell 2 voltage data required by the discharge tester; in this embodiment, a protocol converter is used to convert it into a data type that can be received by the discharge tester, and the protocol converter model is Jizhilong protocol converter;

[0032] Communication module: used to send the voltage data of the battery cell 2 to the discharge tester. The communication module is a 433MHz wireless transmission module. It uses 433MHz wireless serial port transparent transmission, model: UART AS13-TTL.

[0033] Battery cell number analysis module: used to use the electromagnetic signals detected by the first Hall sensor and the second Hall sensor as the coordinate data of the battery cell 2, and set and save the corresponding battery cell number according to the coordinate data; also used to analyze the corresponding battery cell number according to the coordinate data when the coordinate data is acquired. The setting of the first magnet and the first Hall sensor, and the second magnet and the second Hall sensor can facilitate the detection of the robot 5 reaching the exact position for accurate measurement. The setting of the battery cell number analysis module can use the electromagnetic signals detected by the first Hall sensor and the second Hall sensor as the coordinate data of the battery cell 2, further facilitating the detection of the robot 5 reaching the exact position for accurate measurement.

[0034] Temperature anomaly analysis module: used to generate temperature anomaly alarm information when the temperature data exceeds the set threshold. If the temperature of battery cell 2 is abnormal, an alarm message is issued in time to remind the staff to pay attention to battery safety issues.

[0035] In this scheme, a battery detection assembly is provided, wherein the bending plate is used to cover the upper surface and one side of the battery cell 2, which is used to protect the battery cell 2 on the one hand; on the other hand, the circuit is set in the bending plate, which can solve the problem of complex on-site wiring, and does not affect the normal use of the battery cell 2, and subsequent discharge operations; finally, multiple bending plates can be laid into a plane, so that the detection robot 5 can be conveniently electrically connected while moving, thereby facilitating the simultaneous detection of voltage and temperature. For example, when it is necessary to collect voltage, the acquisition module controls the first electric drive wheel of the horizontal bracket 4 according to the collected information, so that the horizontal bracket 4 moves vertically on the vertical bracket 3 to the first set position, and then controls the detection robot 5 to move horizontally on the horizontal bracket 4 to the second set position and stop for a set time (30 seconds, 1 minute, 5 minutes, etc.), so that the left hemisphere of the detection head contacts the upper pad 7, and the right hemisphere of the detection head contacts the lower pad 8, so that the battery data of the battery cell 2 and the temperature data of the temperature sensor can be collected simultaneously. The design of this solution solves the problem that a large number of acquisition lines lead to cumbersome and messy wiring, which brings inconvenience to installation and maintenance, and has high detection costs and low efficiency.

[0036] This solution converts the battery data into the battery cell 2 voltage data required by the discharge tester through the conversion module; and then sends the battery cell 2 voltage data to the discharge tester through the communication module, and the discharge tester analyzes the quality of the battery cell and the discharge operation, etc. The device of this solution further solves the problem of cumbersome wiring and messy wiring caused by conventional voltage data being collected and sent to the discharge tester in a wired manner.

[0037] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A battery cell voltage acquisition and conversion device, characterized in that: The invention comprises a battery detection component, a detection robot, a robot mobile bracket and a controller, wherein the battery detection component comprises a bending plate with an L-shaped vertical cross-section and a temperature sensor, wherein the bending plate is provided with an internal circuit connected to the battery cell electrode, wherein the bending plate comprises a horizontal plate contacting the upper electrode of the battery cell and a vertical plate contacting the side of the battery cell; the temperature sensor is arranged between the side of the battery cell and the vertical plate, and is used to detect the temperature information of the battery cell; the horizontal plate is provided with a through hole through which the electrode of the battery cell passes, wherein a first welding pad is arranged around the through hole, wherein the first welding pad is electrically connected to the internal circuit, and wherein a second welding pad is arranged on the outer side of the vertical plate, wherein the second welding pad comprises an upper The robot mobile bracket comprises a vertical bracket and a horizontal bracket, the horizontal bracket moves back and forth in the vertical direction on the vertical bracket through the first electric drive wheel, the detection robot is arranged on the horizontal bracket and moves back and forth left and right on it, the detection robot comprises a second electric drive wheel and a detection head, the detection head is a sphere, the left hemisphere and the right hemisphere are both conductors and are electrically isolated; the left hemisphere is used to electrically connect the upper pad, and the right hemisphere is used to electrically connect the lower pad, the battery detection assembly, the detection robot and the robot mobile bracket are all electrically connected to the controller, and the controller comprises the following modules: Acquisition module: used to control the first electric drive wheel of the horizontal support according to the acquisition information when acquiring the acquisition information, so that the horizontal support moves vertically to the first set position on the vertical support, and then control the detection robot to move horizontally to the second set position on the horizontal support and stop for a set time, so that the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad, and at the same time, the battery data of the battery cell and the temperature data of the temperature sensor are collected; Conversion module: used to convert battery data into battery cell voltage data required by the discharge tester; Communication module: used to send battery cell voltage data to the discharge tester.

2. The battery cell voltage acquisition and conversion device according to claim 1, characterized in that: The vertical support is provided with a first magnet, and the horizontal support is provided with a first Hall sensor for detecting the first magnet, and the first Hall sensor is electrically connected to the controller.

3. The battery cell voltage acquisition and conversion device according to claim 2 is characterized in that: A second magnet is provided on the horizontal bracket, and a second Hall sensor for detecting the second magnet is provided on the detection robot. When the second Hall sensor detects the second magnet, the left hemisphere of the detection head contacts the upper pad, and the right hemisphere of the detection head contacts the lower pad; the second Hall sensor is electrically connected to the controller.

4. The battery cell voltage acquisition and conversion device according to claim 3 is characterized in that: The controller also includes the following modules: Battery cell number analysis module: used to use the electromagnetic signals detected by the first Hall sensor and the second Hall sensor as coordinate data of the storage battery cell, and set and save the corresponding battery cell number according to the coordinate data; also used to analyze the corresponding battery cell number according to the coordinate data when the coordinate data is obtained.

5. The battery cell voltage acquisition and conversion device according to claim 1, characterized in that: The controller also includes the following modules: Temperature anomaly analysis module: used to generate temperature anomaly alarm information when the temperature data exceeds the set threshold.

6. The battery cell voltage acquisition and conversion device according to claim 1, characterized in that: The communication module is a 433MHz wireless transmission module.

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