CN118191639B - Portable measurement device and detection method for residual capacity of battery - Google Patents
Portable measurement device and detection method for residual capacity of battery Download PDFInfo
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- CN118191639B CN118191639B CN202410614686.7A CN202410614686A CN118191639B CN 118191639 B CN118191639 B CN 118191639B CN 202410614686 A CN202410614686 A CN 202410614686A CN 118191639 B CN118191639 B CN 118191639B
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 claims abstract description 32
- 230000000670 limiting effect Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005303 weighing Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000036541 health Effects 0.000 claims description 5
- 239000011295 pitch Substances 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 25
- 230000008094 contradictory effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 4
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of battery detection, in particular to a portable measuring device and a detection method for the residual capacity of a battery, wherein the portable measuring device comprises an upper box hopper, a lower box hopper and a clamping unit; the invention can solve the following problems in the residual energy detection process of the battery in the prior art: the position of the side plate cannot be adjusted, so that the phenomenon that the side plate cannot be abutted against the side wall of the battery easily occurs, and the battery is lack of stability; the contact area and friction force between the battery and the side wall of the cylindrical battery are easily reduced by adopting a contradictory mode, so that the stability of the battery is further influenced; according to the invention, the lateral wall in the width direction and the lateral wall in the length direction of the battery can be clamped and limited respectively, so that the battery is clamped and limited in multiple directions, and the stability of the battery is ensured; according to the invention, the batteries with rectangular structures and cylindrical structures can be clamped and limited respectively through the pushing plate and the arc-shaped elastic sheet, so that the batteries with different types can be clamped and limited.
Description
Technical Field
The invention relates to the technical field of battery detection, in particular to a portable measuring device and a detection method for residual capacity of a battery.
Background
With the progress of science and technology, the storage battery is widely applied to various devices, and the rest of the storage battery can be continuously attenuated in the repeated charge and discharge process, and the retired treatment is needed when the attenuation is to a certain degree; the residual energy, i.e. the amount of electricity that can be stored by the battery, is, in general terms, the battery capacity that the battery has measured after a period of use.
In order to make the storage battery utilized to the greatest extent, the battery needs to be utilized in a ladder way, for example, a retired electric automobile vehicle-mounted battery pack is put into the application of standby power supply of a communication base station, peak clipping and valley filling of a power generation system and the like; before the retired storage battery is put into secondary use, in order to ensure that the residual capacity of the storage battery is enough to be used, the residual capacity of the storage battery needs to be detected, and the phenomenon that equipment cannot operate due to insufficient residual capacity of the storage battery is avoided.
However, in order to facilitate the detection of the battery capacity of the secondary battery, it is generally necessary to clamp and fix the secondary battery and then detect the remaining capacity of the secondary battery by a dedicated detection device.
To the centre gripping of battery in battery capacity measurement process, also disclose corresponding technical scheme among the prior art, for more accurate contrast, chinese patent for publication number CN213765572U discloses a retired battery residual energy detection anchor clamps, including the bottom plate and be the symmetry form setting at the curb plate of bottom plate up end, and the curb plate is located the horizontal edge of bottom plate, be equipped with the riser between two curb plates, the riser is located the longitudinal edge of bottom plate, opposite one side of riser is equipped with left side cardboard and right side cardboard respectively, the top corner punishment of left side cardboard and right side cardboard is equipped with left bevel connection and right bevel connection, the below of left bevel connection and right bevel connection is equipped with left draw-in groove and right draw-in groove respectively, and left draw-in groove and right draw-in groove are equipped with negative pole piece and positive pole piece respectively, the side of bottom plate is equipped with the slot, the lower part side of bottom plate is equipped with the movable hole, be equipped with conflict subassembly in the movable hole.
When the prior art is used, the box-shaped battery is inserted into the rectangle surrounded by the bottom plate, the side plate, the vertical plate, the left clamping plate and the right clamping plate, so that the anode and the cathode of the battery are respectively tightly abutted against the anode plate and the cathode plate, and the fixed clamping of the battery is completed; during the process, the positive electrode and the negative electrode of the battery are further lifted to be in interference connection with the positive electrode plate and the negative electrode plate through the interference component, the positive electrode plate and the negative electrode plate are connected with the detection device through the lead, a closed circuit is realized, and the residual energy detection of the battery is completed.
However, in the process of performing residual energy detection on a battery using the above-described prior art, there are the following disadvantages:
1. Although can carry out the centre gripping to the battery, but the position of curb plate can't be adjusted, if the volume of battery is less than the rectangle volume that above-mentioned a plurality of parts surrounded, or the position that the battery was placed is biased to arbitrary curb plate, then appear the curb plate easily can't inconsistent phenomenon with the battery lateral wall, and then lead to the battery to receive only the left side cardboard, the conflict power between right side cardboard and the riser, and the other both sides wall of battery can't obtain contradicting, thereby lack stability, take place the skew easily in the testing process and lead to breaking off between positive negative pole and the positive negative pole piece of battery, and then influence detection efficiency.
2. Because the internal compositions of the batteries of different models are different, the batteries with parts are assembled by a plurality of cylindrical batteries, and the contact area and friction between the batteries and the cylindrical batteries are easily reduced by the mode that the rectangle is in conflict with the batteries, so that the stability of the batteries is further influenced.
Therefore, under the above stated viewpoints, the battery residual energy detection means of the related art has room for improvement.
Disclosure of Invention
In order to solve the problems, the invention provides a portable measuring device and a detecting method for the residual capacity of a battery, and the portable measuring device is realized by adopting the following technical scheme:
The first aspect provides a portable measuring device of battery residual capacity, including two mutual handing-over go up case fill and lower case fill, go up case fill and lower case fill and be used for forming a complete portable battery residual energy detection case, go up case fill and lower case fill bottom and all be provided with the universal castor along width direction symmetry, and go up case fill and lower case fill lateral wall and all be provided with the handle, go up case fill and lower case fill and keep away from one side of articulated department and be provided with two spring fastener from top to bottom symmetry.
The telescopic pull rod for dragging is installed on the outer side wall of the lower box hopper, a keyboard located on the upper side, a power switch located in the middle and two binding posts are arranged on one side of the lower box hopper close to the upper box hopper, a computer integrated machine located on the lower side and a charging power supply and an electronic load installed inside the lower box hopper, a weighing module is installed on the middle of one side of the upper box hopper close to the lower box hopper through a lug, a supporting table for limiting a battery is installed on the weighing module, and a clamping unit is installed between the upper box hopper and the lug.
Preferably, the supporting table comprises a supporting plate arranged on one side of the weighing module close to the lower box hopper, two sliding grooves are symmetrically formed in the supporting plate along the width direction of the upper box hopper, positioning pushing plates are arranged in the sliding grooves in a sliding manner, and the distance between the opposite sides of the two positioning pushing plates is gradually increased towards one side far away from the supporting plate;
Two fixed plates positioned at the outer sides of the sliding grooves are arranged on one side of the bearing plate, far away from the weighing module, and a pushing spring rod is arranged between the fixed plates and the positioning push plate.
Preferably, the clamping unit comprises a supporting shaft, two supporting shafts are symmetrically arranged between two side walls of the length direction of the lug and the upper box hopper along the width direction, sleeves are sleeved on the outer wall of the supporting shaft, a U-shaped frame with an opening pointing to the supporting shaft is commonly arranged between the two sleeves positioned on the same axis, two linkage plates are symmetrically arranged on one side of the U-shaped frame, close to the supporting shaft, along the length direction, the clamping plates are arranged on one side of the linkage plates, close to the lug, and the clamping plates are clamped with each other at two corresponding positions.
Preferably, the inner walls of the two sides of the length direction of the upper box hopper are symmetrically provided with two arc plates along the width direction, the arc plates are overlapped with the axis of the supporting shaft, one side of each arc plate, which is close to the U-shaped frame, is provided with two vertically arranged brackets, and one side, which is far away from the protruding blocks, of the vertical section of the U-shaped frame is provided with clamping blocks matched with the brackets.
Preferably, two limit sliding grooves are symmetrically formed in one side, close to the supporting shaft, of the U-shaped frame along the length direction, the linkage plate is in sliding butt joint in the limit sliding grooves, and a double-head screw rod penetrating through the linkage plate in a threaded connection mode is arranged on the horizontal section of the U-shaped frame in a rotating mode;
The lateral wall of arbitrary U type frame is installed through the motor frame and is connected with this double-end screw rod positioning motor, and the opposite side of the vertical section of two U type frames all is provided with the mounting panel, rotates on the mounting panel and wears to be equipped with the locating shaft that is connected through the belt drive with the double-end screw rod, and two locating shaft tip all overlap and are equipped with meshed drive gear.
Preferably, two clamping plates corresponding to the positions on the U-shaped frame are clamped, two pushing plates are symmetrically arranged on one side, close to the protruding block, of the clamping plate along the width direction of the upper box bucket, and an arc-shaped elastic sheet is hinged between the two pushing plates on the same clamping plate.
Preferably, one side of the clamping plate, which is close to the protruding block, is provided with two guide sliding grooves corresponding to the positions of the pushing plates, auxiliary blocks connected with the pushing plates are in sliding butt joint in the guide sliding grooves, the upper end and the lower end of each guide sliding groove penetrate through the clamping plate, and push-pull plates extending to the outside after penetrating through the guide sliding grooves are arranged at the upper end and the lower end of each auxiliary block;
The upper end and the lower end of the clamping plate are provided with a plurality of bearing plates which are arranged at intervals with the guide sliding grooves, threaded rods which penetrate through the push-pull plate in a threaded connection mode are rotatably arranged between the plurality of bearing plates of the same clamping plate, the upper threaded rod and the lower threaded rod of the clamping plate are connected through belt transmission, and the end parts of the threaded rods corresponding to the positions of the two clamping plates are mutually clamped.
Preferably, two transmission threads corresponding to the positions of the guide sliding grooves are formed in the outer wall of the threaded rod, and the screw pitches of the two transmission threads are gradually reduced at the joint of the threaded rod.
In a second aspect, there is provided a battery remaining capacity detection method including the steps of: s1, placing a battery: placing a battery with residual capacity to be detected on a clamping unit;
S2, fixing a battery: the battery is clamped and fixed in multiple directions through the clamping unit and is electrically connected with the measuring device;
S3, measuring, recording and calculating the internal resistance of the battery: measuring the internal resistance of the battery by a measuring device, reading measurement data from the measuring device, reading the measurement data once every ten seconds, storing the measurement data in a sqlite database, and calculating and displaying an average value after the measurement is finished;
S4, calculating the state of health SOH of the battery: adding a calculation function in the measuring device, and inputting an initial value to calculate the ratio of residual energy to the initial value;
s5: and (3) battery charge and discharge measurement: the method comprises the steps of intelligently charging and discharging a battery through a measuring device, and calculating a charging stop voltage and a discharging stop voltage of the battery in the period;
s6: and (3) quick test: a rapid test mode is added in the measuring device to multiply the discharge current.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The intelligent charging and discharging method can intelligently charge and discharge the battery, calculates the charging stop voltage and the discharging stop voltage of the battery in the period, can measure the internal resistance of the battery, and reads the measured data through the computer integrated machine and stores the measured data in the sqlite database; in addition, the input of the initial value may calculate the ratio of the remaining capacity of the battery to the initial value, and in addition, a rapid test mode may be set so as to multiply the discharge current, thereby improving the measurement speed and reducing the measurement time.
2. According to the invention, the positioning push plate is abutted against the side wall of the battery under the action of the pushing spring rod and forms a limiting and positioning function on the side wall in the width direction of the battery, so that the battery is prevented from falling easily when the battery is placed close to the edge of the supporting plate; then the double-headed screw is rotated, and the clamping plate is driven to abut against the side wall of the battery through the linkage plate, so that the side wall of the length direction of the battery can be clamped and limited, the battery can be clamped and limited in multiple directions, and the stability of the battery in the measuring process is ensured.
3. According to the invention, the pushing plate is matched with the arc-shaped elastic sheet to clamp and limit batteries of different types, namely, the pushing plate is used for clamping and limiting batteries of rectangular structures, and the arc-shaped elastic sheet can be abutted against the side wall of the cylindrical battery, so that the contact area between the arc-shaped elastic sheet and the battery can be increased, and therefore, the batteries of different types can be clamped and limited.
4. According to the invention, the distance between the pushing plates is adjusted to correspondingly adjust the radian of the arc-shaped elastic sheet according to the radian of the side wall of the cylindrical battery, so that the arc-shaped elastic sheet can be attached to the side wall of the cylindrical battery and the contact area is increased, the clamping and limiting effects on the battery can be enhanced, and the batteries of different types can be clamped and limited, thereby improving the adaptability.
5. According to the invention, the second electrode plates are driven to abut against the electricity connection end at the upper end of the battery when the hollow threaded column moves, only two second electrode plates can finish electricity connection, and other second electrode plates abut against the top of the battery and press and fix the battery, so that the stability is further improved, and the battery is quickly and electrically connected with the binding post; in addition, when any second electrode plate is abutted against the terminal of the battery in a serial connection mode, the charge-discharge voltage and the internal resistance of the battery are not influenced, and therefore the influence on the measurement accuracy of the residual capacity of the battery is avoided.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of the structure between an upper bin and a lower bin of the invention.
Fig. 2 is a schematic view of the internal structure between the upper and lower hoppers of the present invention.
Fig. 3 is a schematic view of the structure between the upper bin, the lower bin and the clamping unit of the present invention.
Fig. 4 is a schematic view of the structure between the upper bin and the clamping unit of the present invention.
Fig. 5 is an initial state diagram of the clamping unit of the present invention.
Fig. 6 is a schematic view of the structure of the invention between the support shaft, the U-shaped frame, the linkage plate and the clamping plate.
Fig. 7 is a schematic view of the internal structure of the clamping plate of the present invention.
Fig. 8 is a schematic view of the structure of the invention between the upper bin, the lower bin, the clamping unit and the power receiving unit.
Fig. 9 is a schematic view of the structure between the power receiving unit and the terminal post of the present invention.
Fig. 10 is a schematic diagram of the internal structure of the power receiving unit of the present invention.
Fig. 11 is an enlarged view of a portion of fig. 10 according to the present invention.
Fig. 12 is an enlarged view of a portion of fig. 11B in accordance with the present invention.
In the figure, 1, an upper box bucket; 11. a bump; 12. a weighing module; 13. a support table; 131. a bearing plate; 132. a slip groove; 133. positioning a push plate; 134. a fixing plate; 135. pushing the spring rod; 2. a lower box hopper; 21. a keyboard; 22. a power switch; 23. binding posts; 24. a computer integrated machine; 3. universal castor; 4. a handle; 5. a spring buckle; 6. a pull rod; 7. a clamping unit; 71. a support shaft; 711. an arc-shaped plate; 712. a bracket; 713. a clamping block; 72. a sleeve; 73. a U-shaped frame; 731. a double-ended screw; 732. a positioning motor; 733. a mounting plate; 734. positioning a shaft; 735. a transmission gear; 74. a linkage plate; 75. a clamping plate; 751. a pushing plate; 752. an arc-shaped elastic sheet; 753. an auxiliary block; 754. a push-pull plate; 755. a receiving plate; 756. a threaded rod; 8. a power connection unit; 81. a connecting plate; 82. a hollow threaded column; 83. a first electrode plate; 84. a second electrode plate; 85. a wire; 86. an electric wire; 87. a rotary gear; 88. key teeth; 89. a rack; 90. and (5) butt connecting the rods.
Detailed Description
Embodiments of the invention are described in detail below with reference to fig. 1-12, but the invention can be practiced in many different ways as defined and covered by the claims.
The embodiment of the application discloses a portable measuring device for the residual capacity of a battery, which is mainly applied to the process of measuring the residual capacity of the battery, and can clamp and limit the battery in multiple directions in technical effect, then intelligently charge and discharge the battery, calculate the charge stop voltage and the discharge stop voltage of the battery in the process, measure the internal resistance of the battery, read the measured data and store the measured data in a sqlite database, and in addition, input an initial value to calculate the ratio of the residual capacity to the initial value of the battery, and set a quick test mode so as to multiply the discharge current, thereby improving the measuring speed and reducing the measuring time; particularly, in the process of clamping the battery, the clamping limit can be carried out on the side walls in the length direction and the side walls in the width direction of the batteries of different types, so that the batteries can be clamped and limited in multiple directions, and the stability of the batteries in the measurement process is ensured; further, this battery residual capacity measuring device can also support when spacing to the battery module centre gripping of cylinder battery equipment and lean on the cylinder battery lateral wall to can increase the area of contact between the battery, and can carry out the centre gripping spacing according to the different cylinder batteries of radian, thereby can improve adaptability.
Examples
Referring to fig. 1 and 2, in order to facilitate detection of the remaining capacity of a battery, in this embodiment, a portable measuring device for the remaining capacity of a battery is provided, which includes two upper and lower buckets 1 and 2 that are connected to each other, the bottoms of the upper and lower buckets 1 and 2 are symmetrically provided with universal casters 3 along the width direction, the side walls of the upper and lower buckets 1 and 2 are respectively provided with a handle 4, one sides of the upper and lower buckets 1 and 2 away from the hinge are vertically symmetrically provided with two snap locks 5, and the outer side wall of the lower bucket 2 is provided with a telescopic pull rod 6 for towing.
In the practical use s, the opening and closing between the upper box bucket 1 and the lower box bucket 2 can be controlled through the spring buckle 5, so that a complete portable battery residual energy detection box is formed after the upper box bucket and the lower box bucket are closed, the battery residual energy detection box can be towed when being closed through the cooperation of the universal casters 3 and the pull rod 6, and the battery residual energy detection box can be lifted through the handle 4, so that the portable battery residual energy detection box is convenient to carry and use.
Referring to fig. 2 and 3, further, in this embodiment, a keyboard 21, a power switch 22, two terminals 23, a computer integrated machine 24, a charging power supply and an electronic load (not shown in the drawings), which are located on the upper side, are disposed on one side of the lower bucket 2, which is close to the upper bucket 1, a weighing module 12 is mounted on the middle of one side of the upper bucket 1, which is close to the lower bucket 2, through a bump 11, a supporting table 13 for limiting a battery is mounted on the weighing module 12, and a clamping unit 7 is mounted between the upper bucket 1 and the bump 11.
In the specific implementation process, firstly, the upper box hopper 1 and the lower box hopper 2 are opened and kept flat at 180 degrees, and secondly, a battery to be detected is placed at the upper end of the supporting table 13; in order to ensure the detection accuracy of the battery, the present embodiment detects the weight of the battery by the weighing module 12, and the upper limit of the battery weight is preferably 10 kg.
Then, the anode and the cathode of the battery are respectively and electrically connected with the two binding posts 23, the power switch 22 is started again, the battery is intelligently charged and discharged through a charging power supply and an electronic load, and the charging stop voltage and the discharging stop voltage of the battery are calculated in the process; meanwhile, measuring the internal resistance of the battery, reading measurement data through the computer integrated machine 24, reading the measurement data once every ten seconds, storing the measurement data in a sqlite database, and calculating and displaying an average value after the measurement is finished; in addition, the ratio of the remaining capacity of the battery to the initial value can be calculated by inputting the initial value on the computer integrated machine 24 through the keyboard 21, and in addition, a quick test mode can be set through the computer integrated machine 24 so as to multiply the discharge current, thereby improving the measurement speed and reducing the measurement time.
Referring to fig. 3 and 4, in order to ensure stability of the battery during the measurement process when the battery is placed on the supporting table 13, a technical solution for limiting the battery is provided in this embodiment; specifically, the supporting table 13 includes a supporting plate 131 installed on one side of the weighing module 12 near the lower bucket 2, two sliding grooves 132 are symmetrically formed in the supporting plate 131 along the width direction of the upper bucket 1, positioning pushing plates 133 are slidably arranged in the sliding grooves 132, the distance between opposite sides of the two positioning pushing plates 133 is gradually increased towards one side far away from the supporting plate 131, and therefore one side of the positioning pushing plates 133 far away from the supporting plate 131 is inclined outwards, so that a battery can be guided, and the battery can be smoothly and rapidly placed in the middle of the supporting plate 131.
Further, in order to fully squeeze both sides of the battery, in this embodiment, two fixing plates 134 located outside the sliding groove 132 are installed on a side of the support plate 131 away from the weighing module 12, and a pushing spring rod 135 is installed between the fixing plates 134 and the positioning push plate 133.
In the specific implementation process, the pushing spring rod 135 always applies a pushing force to the positioning pushing plate 133, which points to the side far from the fixed plate 134, so that when the battery is placed at the upper end of the supporting plate 131, both positioning pushing plates 133 are abutted against the side wall of the battery under the action of the pushing spring rod 135 and form a limiting effect on the side wall of the battery, so that the battery cannot topple over; because the pushing forces received by the two positioning pushing plates 133 are equal, the battery can be pushed to the middle of the supporting plate 131, so that the battery can be positioned, and the battery is prevented from falling easily due to the fact that the battery is placed at a position close to the edge of the supporting plate 131.
In addition, the positioning push plate 133 can be adaptively adjusted according to the width of the battery, so that the batteries with different specifications can be limited and the residual capacity can be measured.
Referring to fig. 4 and 5, in order to further improve stability in the battery measurement process, therefore, in this embodiment, a clamping unit 7 for limiting the side wall in the length direction of the battery is provided on the basis that the side wall in the width direction of the battery is limited, specifically, the clamping unit 7 includes a supporting shaft 71, two supporting shafts 71 are symmetrically arranged between two side walls in the length direction of the protruding block 11 and the upper bucket 1 along the width direction, a sleeve 72 is sleeved on the outer wall of the supporting shaft 71, a U-shaped frame 73 with an opening pointing to the supporting shaft 71 is commonly arranged between the two sleeves 72 on the same axis, two linkage plates 74 are symmetrically arranged on one side, close to the supporting shaft 71, of the U-shaped frame 73 along the length direction, of the linkage plates 74, a clamping plate 75 is installed on one side, close to the protruding block 11, of the clamping plates 75 corresponding to the two positions are clamped.
Further, in the present embodiment, two limiting sliding grooves are symmetrically formed on one side of the U-shaped frame 73 near the supporting shaft 71 along the length direction, the linkage plate 74 is slidingly abutted in the limiting sliding grooves, and the horizontal section of the U-shaped frame 73 is rotatably provided with a double-headed screw 731 penetrating through the linkage plate 74 in a threaded connection manner.
It should be noted that, in this embodiment, in order to prevent the U-shaped frame 73 from affecting the closing of the upper hopper 1 and the lower hopper 2, the U-shaped frame 73 is placed horizontally in the initial state, and the U-shaped frame 73 drives the linkage plate 74, the clamping plate 75 and the double-headed screw 731 to be accommodated in the space between the bump 11 and the upper hopper 1 (as shown in fig. 5), so that the height of the U-shaped frame 73, the linkage plate 74 and the clamping plate 75 is lower than that of the upper hopper 1, so that the closing between the upper hopper 1 and the lower hopper 2 is not affected, and the damage caused by the collision of the computer integrated machine 24 and the keyboard 21 is not caused.
In a specific implementation process, the two U-shaped frames 73 are rotated upwards to a vertical state along the supporting shaft 71, the U-shaped frames 73 drive the linkage plate 74, the clamping plate 75 and the double-headed screw 731 to be located above the protruding blocks 11, at this time, the clamping plates 75 corresponding to the positions on the two U-shaped frames 73 are clamped and form a complete rectangular plate (as shown in fig. 4), then the double-headed screw 731 is rotated, and the double-headed screw 731 rotates and drives the clamping plate 75 to move to one side close to the battery through the linkage plate 74, so that the clamping plates 75 clamp and limit the two side walls of the battery in the length direction, and the battery is clamped and limited in multiple directions, so that the stability of the battery in the measurement process is ensured.
After the measurement is completed, the double-headed screw 731 is reversely rotated and the linkage plate 74 and the clamping plate 75 are driven to move to a side far away from the battery, so that the limiting effect on the battery is relieved, and then the U-shaped frame 73 is controlled to rotate downwards and reset to a horizontal state, so that the battery is taken down.
Referring to fig. 6, in order to improve the efficiency of limiting the battery by the clamping plate 75, in this embodiment, a positioning motor 732 connected to the double-headed screw 731 is mounted on the side wall of any one of the U-shaped frames 73 through a motor frame, mounting plates 733 are disposed on opposite sides of the vertical sections of the two U-shaped frames 73, positioning shafts 734 connected to the double-headed screw 731 through belt transmission are rotatably disposed on the mounting plates 733, and transmission gears 735 engaged with each other are respectively sleeved on the ends of the two positioning shafts 734.
In a specific implementation process, when the two U-shaped frames 73 rotate upwards to a vertical state, the mounting plates 733 drive the transmission gears 735 to be meshed, then the positioning motor 732 is started, the positioning motor 732 drives the double-end screw 731 to rotate, the double-end screw 731 drives the positioning shaft 734 closest to the double-end screw 731 to rotate, the positioning shaft 734 drives the other positioning shaft 734 and the double-end screw 731 to rotate through the transmission gears 735, so that the two double-end screws 731 are controlled to synchronously rotate, and meanwhile, the clamping plate 75 is driven to move to one side close to a battery through the linkage plate 74, so that the clamping plate 75 can be automatically adjusted.
With continued reference to fig. 6, in order to avoid that the lack of stability of the U-shaped frame 73 in the horizontal state easily causes the U-shaped frame 73 to collide with the computer integrated machine 24 and the keyboard 21 when lifting the battery residual energy detection box, and to avoid that the lack of stability of the U-shaped frame 73 in the vertical state easily inclines to affect the limiting effect on the battery; based on this, in this embodiment, two arc plates 711 are symmetrically disposed on inner walls of two sides of the upper bucket 1 in the length direction along the width direction, the arc plates 711 are coincident with the axis of the supporting shaft 71, two vertically arranged brackets 712 are disposed on one side of the arc plates 711, which is close to the U-shaped frame 73, and a clamping block 713 is mounted on one side of the vertical section of the U-shaped frame 73, which is far from the protruding block 11.
In the specific implementation process, the U-shaped frame 73 drives the clamping block 713 to be clamped with the vertically arranged bracket 712 when rotating upwards to a vertical state, and drives the clamping block 713 to be clamped with the horizontally arranged bracket 712 when rotating downwards to a horizontal state; therefore, the U-shaped frame 73 can be limited and fixed, operation is convenient, and the influence on the using effect due to the lack of stability of the U-shaped frame 73 can be avoided.
Referring to fig. 7, since the battery modules used in the automobiles of different models are different, that is, one part of the batteries is in a rectangular structure and the other part is a battery module assembled by a plurality of cylindrical batteries, when the batteries of different models are limited, the self-adaptive adjustment is required according to the contour structure of the side wall of the battery module to ensure the limiting effect; based on this, in this embodiment, two clamping plates 75 corresponding to each other are clamped on two U-shaped frames 73, two pushing plates 751 are symmetrically disposed on one side of the clamping plate 75, which is close to the bump 11, along the width direction of the upper bucket 1, and an arc-shaped elastic sheet 752 is hinged between the two pushing plates 751 on the same clamping plate 75.
In the specific implementation process, when the double-headed screw 731 drives the clamping plate 75 to move to the side close to the battery through the linkage plate 74, the clamping plate 75 drives the pushing plate 751 to abut against the side wall of the battery, and the double-headed screw 731 is used for clamping and limiting the battery with a rectangular structure; when the battery is a battery module assembled by a plurality of cylindrical batteries, the pushing plate 751 drives the arc-shaped elastic sheet 752 to lean against the side wall of the cylindrical battery, so that the contact area between the arc-shaped elastic sheet 752 and the battery can be increased, and the batteries of different models can be clamped and limited.
With continued reference to fig. 7, when the types of the battery modules assembled by the cylindrical batteries are different, the diameters of the used cylindrical batteries are different, so that the radians of the side walls of the cylindrical batteries are different, so that in order to enable the arc-shaped elastic sheet 752 to be in butt joint with the cylindrical batteries of different types, in this embodiment, two guide sliding grooves corresponding to the positions of the pushing plates 751 are formed in one side, close to the protruding block 11, of the clamping plate 75, an auxiliary block 753 connected with the pushing plates 751 is slidingly abutted in the guide sliding grooves, the upper end and the lower end of the guide sliding groove penetrate through the clamping plate 75, and a push-pull plate 754 extending to the outside after penetrating through the guide sliding grooves is mounted at the upper end and the lower end of the auxiliary block 753.
Further, in the present embodiment, a plurality of bearing plates 755 spaced from the guiding sliding grooves are disposed at the upper and lower ends of the clamping plate 75, threaded rods 756 penetrating through the push-pull plate 754 in a threaded connection manner are rotatably disposed between the plurality of bearing plates 755 of the same clamping plate 75, the upper and lower threaded rods 756 of the clamping plate 75 are connected by belt transmission, and the end portions of the threaded rods 756 corresponding to the positions on the two clamping plates 75 are clamped with each other.
It should be noted that, the outer wall of the threaded rod 756 is provided with two driving threads corresponding to the position of the guiding chute, and the pitches of the two driving threads are gradually reduced near the clamping position of the threaded rod 756; by arranging two transmission threads with different pitches, the moving speeds of the two push-pull plates 754 driving the outer wall of the threaded rod 756 can be different when the threaded rod 756 is rotated; that is, the smaller the pitch of the transmission thread, the slower the moving speed of the push-pull plate 754, whereas the faster the moving speed of the push-pull plate 754, so that the moving distance of the push-pull plate 754 can be controlled when the threaded rod 756 is rotated, and the distance between the plurality of push-pull plates 754 of the two clamping plates 75 is always kept in an equidistant arrangement mode, so that the battery is convenient to be uniformly stressed when being clamped; in addition, the threaded rod 756 is a self-locking threaded rod 756 of the prior art that is adapted to be automatically locked after rotation, thereby avoiding any rotation.
In the specific implementation process, after the two U-shaped frames 73 rotate upwards, the corresponding two threaded rods 756 are driven to be clamped, and as the two threaded rods 756 on the same clamping plate 75 are connected through belt transmission, rotating any one threaded rod 756 can drive the threaded rods 756 on the two corresponding clamping plates 75 to synchronously rotate; the screw rods 756 are rotated to drive the auxiliary block 753 and the pushing plates 751 integrally through the push-pull plate 754, and the distance between the pushing plates 751 of the two holding plates 75 is always kept equal in the process.
With this interval through adjusting between the pushing plate 751 can be according to the radian of cylinder battery side wall to the corresponding regulation of radian of arc shell fragment 752 for arc shell fragment 752 can laminate at cylinder battery side wall and increase area of contact, thereby can strengthen the spacing effect of centre gripping to the battery, and can carry out the centre gripping spacing to the battery of different models, and then improve adaptability.
Examples
Referring to fig. 8, 9, 10 and 11, in order to facilitate the electrical connection between the positive and negative electrodes of the battery and the post 23, in the first embodiment, an electrical connection unit 8 is further provided; the specific content of the power receiving unit 8 is as follows:
The two U-shaped frames 73 are provided with connecting plates 81 which are clamped with each other on one side far away from the protruding blocks 11, a plurality of hollow threaded columns 82 are arranged on the connecting plates 81 at equal intervals along the length direction in a threaded connection mode, a first electrode plate 83 and a second electrode plate 84 are respectively arranged at the upper end and the lower end of each hollow threaded column 82, the first electrode plate 83 and the second electrode plate 84 are electrically connected through a lead 85, a plurality of first electrode plates 83 of the same connecting plate 81 are electrically connected in series, and two first electrode plates 83 closest to the upper part of the upper box hopper 1 are respectively electrically connected with two binding posts 23 of the lower box hopper 2 through wires 86.
Referring to fig. 10, 11 and 12, further, in this embodiment, a circular groove is formed inside the connecting plate 81, a rotary gear 87 sleeved on the outer wall of the hollow threaded column 82 is rotatably provided inside the circular groove, a longitudinal sliding groove is formed on the outer wall of the hollow threaded column 82, a key tooth 88 slidingly abutted to the inner wall of the longitudinal sliding groove is provided on the inner wall of the rotary gear 87, a through hole communicated with the circular sliding groove is further formed inside the connecting plate 81, racks 89 meshed with the rotary gears 87 are slidingly arranged inside the through hole, two ends of the racks 89 are respectively provided with a butt joint rod 90, and the butt joint rods 90 corresponding to the positions on the two U-shaped frames 73 are in clamping connection.
In the specific implementation process, after the two U-shaped frames 73 rotate upwards, the two corresponding connecting plates 81 and the two butt-joint rods 90 are driven to be respectively clamped with each other, and then the butt-joint rods 90 push the racks 89, so that the racks 89 slide in the through holes and drive the rotary gears 87 to rotate; because the rotary gear 87 is matched with the longitudinal sliding groove on the outer wall of the hollow threaded column 82 through the key teeth 88, the hollow threaded column 82 can be driven to synchronously rotate in the rotating process of the rotary gear 87, and the hollow threaded column 82 is not limited to move along the axis; so that the hollow threaded post 82 drives the second electrode plate 84 against the terminal at the upper end of the cell.
Because the top of the battery generally has only two electric terminals at the positive and negative electrodes, only two second electrode plates 84 can finish electric connection, and other second electrode plates 84 are abutted against the top of the battery and are pressed and fixed to the battery, so that the stability is further improved; in addition, the plurality of hollow threaded columns 82 can also be suitable for batteries of different types, so that the hollow threaded columns can be abutted against positive and negative electrode power connection ends at different positions on the tops of the batteries of different types; further, the plurality of first electrode plates 83 on the same connecting plate 81 are electrically connected in series, so that when any second electrode plate 84 is abutted against the terminal of the battery, the charge-discharge voltage and the internal resistance of the battery are not affected, and the measurement accuracy of the residual capacity of the battery is not affected.
After the second electrode plates 84 on the two connecting plates 81 are abutted against the positive and negative electrode connection ends of the battery, the positive and negative electrodes of the battery are electrically connected with the two binding posts 23 respectively through the second electrode plates 84, the lead wires 85, the first electrode plates 83 and the electric wires 86 in sequence, so that the battery and the binding posts 23 are electrically connected quickly.
After the measurement is completed, the docking rod 90 is pulled, the rack 89 is pulled back to reset by the docking rod 90, so that the rotary gear 87 drives the hollow threaded column 82 to reset, the electric connection between the battery and the binding post 23 and the pressing and fixing effects of the second electrode plate 84 on the battery are relieved, and the measured battery is conveniently taken down.
In addition, the invention also provides a battery residual capacity detection method, which comprises the following steps:
S1, placing a battery: firstly, the upper box hopper 1 and the lower box hopper 2 are opened and kept flat at 180 degrees, secondly, the battery to be detected is placed at the upper end of the supporting plate 131, and at the moment, the two positioning pushing plates 133 are abutted against the side wall of the battery and form limiting and positioning functions on the side wall of the battery, so that the battery is prevented from being placed at a position close to the edge of the supporting plate 131 and easy to fall.
S2, fixing a battery: the two U-shaped frames 73 are rotated upwards to a vertical state along the supporting shaft 71, the U-shaped frames 73 drive the linkage plate 74, the clamping plates 75 and the double-end screws 731 to be located above the protruding blocks 11, at the moment, the clamping plates 75 corresponding to the positions of the two U-shaped frames 73 are clamped, then the positioning motor 732 is started, the positioning motor 732 drives the double-end screws 731 to rotate, the double-end screws 731 drive the other positioning shaft 734 and the double-end screws 731 to rotate through the matching between the positioning shaft 734 and the transmission gear 735, and accordingly the two double-end screws 731 are controlled to synchronously rotate and simultaneously drive the clamping plates 75 to move to one side close to a battery through the linkage plate 74.
The clamping plate 75 drives the pushing plate 751 to abut against two side walls of the battery in the length direction, and is used for clamping and limiting the battery with the rectangular structure; when the battery is a battery module assembled by a plurality of cylindrical batteries, the pushing plate 751 drives the arc-shaped elastic sheet 752 to lean against the side wall of the cylindrical battery, so that the contact area between the battery and the battery can be increased, the batteries of different types can be clamped and limited, the radian of the arc-shaped elastic sheet 752 can be adjusted according to the radian of the side wall of the cylindrical battery, and the clamping and limiting effect on the battery can be enhanced.
In addition, after the two U-shaped frames 73 rotate upwards, the corresponding two connecting plates 81 and the two butt joint rods 90 are driven to be respectively clamped with each other, then the rack 89 is pushed by the butt joint rods 90, so that the rack 89 slides in the through hole and drives the rotary gear 87 to rotate, the rotary gear 87 drives the hollow threaded column 82 to synchronously rotate and control the hollow threaded column to move through the cooperation between the key teeth 88 and the longitudinal sliding grooves, and the hollow threaded column 82 drives the second electrode plate 84 to abut against the electric connection end at the upper end of the battery.
Only two second electrode plates 84 can finish the electricity connection, and other second electrode plates 84 are propped against the top of the battery and are pressed and fixed to the battery, so that the stability is further improved; then, the positive and negative poles of the battery are electrically connected with the two binding posts 23 through the second electrode plate 84, the lead wire 85, the first electrode plate 83 and the electric wire 86 in sequence, so that the battery is electrically connected with the binding posts 23 quickly.
S3, measuring, recording and measuring and calculating the internal resistance of the battery: the power switch 22 is started to measure the internal resistance of the battery, the measured data is read by the computer integrated machine 24, the recording frequency is that the measured data is read once every ten seconds and stored in a sqlite database (sqlite is a light database, is a relational database management system which obeys ACID and is contained in a relatively small C library, and the method belongs to the prior art and is not repeated), the average value is calculated and displayed after the measurement is finished, and the state of health (SOH) value of the battery is calculated through the internal resistance change ratio.
S4, calculating the state of health SOH of the battery: the calculation function is added, and an initial value of the battery capacity (or a calculated value by a weight determination method) is input to the computer integrated machine 24 through the keyboard 21, and a state of health (SOH) value of the battery is calculated by a method of a ratio of the remaining capacity of the battery to the initial value.
S5: the battery is automatically charged and discharged: the battery is intelligently charged and discharged through the charging power supply and the electronic load, and the battery stops working automatically after the charging stop voltage and the discharging stop voltage of the battery reach preset values in the period without personnel monitoring.
S6: and (3) quick test: the computer integrated machine 24 is provided with a quick test mode so as to multiply the discharge current, thereby improving the measurement speed (the efficiency can be increased by more than 5 times), and reducing the measurement time by more than 80 percent compared with the original measurement time.
After the measurement is completed, the docking rod 90 is pulled, the rack 89 is pulled back to reset by the docking rod 90, so that the rotary gear 87 drives the hollow threaded column 82 to reset, and the electric connection between the battery and the binding post 23 and the pressing and fixing effects of the second electrode plate 84 on the battery are relieved; then the positioning motor 732 drives the rotary double-headed screw 731 to rotate reversely and drives the linkage plate 74 and the clamping plate 75 to move to the side far away from the battery, so that the limiting effect on the battery is relieved, and then the U-shaped frame 73 is controlled to rotate downwards and reset to a horizontal state, so that the measured battery is conveniently taken down.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A battery remaining capacity detection method, comprising the steps of:
s1, placing a battery: placing a battery of which the residual capacity needs to be detected on a clamping unit (7);
S2, fixing a battery: the battery is clamped and fixed in multiple directions through the clamping unit (7) and is electrically connected with the measuring device;
S3, measuring, recording and measuring and calculating the internal resistance of the battery: measuring the internal resistance of the battery by a measuring device, reading measurement data from the measuring device, reading the measurement data once every ten seconds, storing the measurement data in a sqlite database, and calculating and displaying an average value after the measurement is finished;
S4, calculating the state of health SOH of the battery: adding a calculation function in the measuring device, and calculating the ratio of residual energy to the initial value after inputting the initial value;
s5: and (3) battery charge and discharge measurement: the method comprises the steps of intelligently charging and discharging a battery through a measuring device, and calculating a charging stop voltage and a discharging stop voltage of the battery in the period;
S6: and (3) quick test: adding a rapid test mode in the measuring device to multiply the discharge current;
Based on the steps, the battery residual capacity detection method is used for detecting the residual capacity of a battery through the battery residual capacity portable measuring device, and the battery residual capacity portable measuring device comprises an upper box hopper (1) and a lower box hopper (2) which are hinged with each other, wherein the upper box hopper (1) and the lower box hopper (2) are used for forming a complete portable battery residual capacity detection box, and the battery residual capacity detection method is characterized in that: the bottoms of the upper box hopper (1) and the lower box hopper (2) are symmetrically provided with universal casters (3) along the width direction, the side walls of the upper box hopper (1) and the lower box hopper (2) are respectively provided with a handle (4), and one sides of the upper box hopper (1) and the lower box hopper (2) far away from the hinge joint are vertically symmetrically provided with two spring buckles (5);
The outer side wall of the lower box hopper (2) is provided with a telescopic pull rod (6) for towing, one side of the lower box hopper (2) close to the upper box hopper (1) is provided with a keyboard (21) positioned at the upper side, a power switch (22) positioned at the middle part, two binding posts (23), a computer integrated machine (24) positioned at the lower side, a charging power supply and an electronic load which are arranged in the lower box hopper (2), the middle part of one side of the upper box hopper (1) close to the lower box hopper (2) is provided with a weighing module (12) through a lug (11), the weighing module (12) is provided with a supporting table (13) for limiting a battery, and a clamping unit (7) is arranged between the upper box hopper (1) and the lug (11);
The clamping unit (7) comprises a supporting shaft (71), two supporting shafts (71) are symmetrically arranged between two side walls of the length direction of the protruding block (11) and the upper box hopper (1) along the width direction, sleeves (72) are sleeved on the outer wall of the supporting shaft (71), a U-shaped frame (73) with an opening pointing to the supporting shaft (71) is jointly arranged between the two sleeves (72) positioned on the same axis, two linkage plates (74) are symmetrically arranged on one side, close to the supporting shaft (71), of the U-shaped frame (73) along the length direction, of the linkage plates (74), clamping plates (75) are arranged on one side, close to the protruding block (11), of the linkage plates, and the clamping plates (75) corresponding to the two positions are clamped.
2. The battery remaining capacity detection method according to claim 1, characterized in that: the supporting table (13) comprises a supporting plate (131) arranged on one side, close to the lower box hopper (2), of the weighing module (12), two sliding grooves (132) are symmetrically formed in the supporting plate (131) along the width direction of the upper box hopper (1), positioning pushing plates (133) are arranged in the sliding grooves (132) in a sliding mode, and the distance between the opposite sides of the two positioning pushing plates (133) is gradually increased towards one side, far from the supporting plate (131);
two fixing plates (134) positioned outside the sliding grooves (132) are arranged on one side, far away from the weighing module (12), of the supporting plate (131), and pushing spring rods (135) are arranged between the fixing plates (134) and the positioning pushing plates (133).
3. The battery remaining capacity detection method according to claim 1, characterized in that: two arc plates (711) are symmetrically arranged on the inner walls of the two sides of the length direction of the upper box hopper (1) along the width direction, the axes of the arc plates (711) and the supporting shafts (71) are overlapped, two supports (712) which are vertically arranged are arranged on one side, close to the U-shaped frame (73), of the arc plates (711), and clamping blocks (713) which are matched with the supports (712) are arranged on one side, far away from the protruding blocks (11), of the vertical section of the U-shaped frame (73).
4. The battery remaining capacity detection method according to claim 1, characterized in that: two limit sliding grooves are symmetrically formed in one side, close to the supporting shaft (71), of the U-shaped frame (73), the linkage plate (74) is in sliding butt joint in the limit sliding grooves, and a double-head screw (731) penetrating through the linkage plate (74) in a threaded connection mode is arranged on the horizontal section of the U-shaped frame (73) in a rotating mode;
The side wall of any U-shaped frame (73) is provided with a positioning motor (732) connected with the double-headed screw (731) through a motor frame, the opposite sides of the vertical sections of the two U-shaped frames (73) are respectively provided with a mounting plate (733), the mounting plates (733) are rotatably provided with positioning shafts (734) connected with the double-headed screw (731) through belt transmission in a penetrating way, and the end parts of the two positioning shafts (734) are respectively sleeved with a meshed transmission gear (735).
5. The battery remaining capacity detection method according to claim 1, characterized in that: two clamping plates (75) corresponding to the positions on the U-shaped frames (73) are clamped, two pushing plates (751) are symmetrically arranged on one side, close to the protruding blocks (11), of each clamping plate (75) along the width direction of the upper box hopper (1), and arc-shaped elastic sheets (752) are hinged between the two pushing plates (751) on the same clamping plate (75).
6. The battery remaining capacity detection method according to claim 5, characterized in that: two guide sliding grooves corresponding to the pushing plates (751) are formed in one side, close to the protruding blocks (11), of the clamping plates (75), auxiliary blocks (753) connected with the pushing plates (751) are in sliding butt joint in the guide sliding grooves, the upper ends and the lower ends of the guide sliding grooves penetrate through the clamping plates (75), and push-pull plates (754) extending to the outside after penetrating through the guide sliding grooves are arranged at the upper ends and the lower ends of the auxiliary blocks (753);
The upper end and the lower end of the clamping plate (75) are provided with a plurality of bearing plates (755) which are distributed at intervals with the guide sliding grooves, threaded rods (756) which penetrate through the push-pull plates (754) in a threaded connection mode are rotatably arranged between the bearing plates (755) of the same clamping plate (75), the upper threaded rod (756) and the lower threaded rod (756) of the clamping plate (75) are connected through belt transmission, and the end parts of the threaded rods (756) corresponding to the positions on the two clamping plates (75) are mutually clamped.
7. The battery remaining capacity detection method according to claim 6, wherein: two transmission threads corresponding to the positions of the guide sliding grooves are formed in the outer wall of the threaded rod (756), and the thread pitches of the two transmission threads are gradually reduced at the joint of the threaded rod (756).
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| CN121476998B (en) * | 2026-01-07 | 2026-03-31 | 湖南中车轨道交通设备有限责任公司 | Online detection device for micro-short circuit electric faults inside battery pack |
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| CN116338491A (en) * | 2023-03-19 | 2023-06-27 | 河南工学院 | A battery remaining capacity measuring device |
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| KR102547312B1 (en) * | 2020-12-02 | 2023-06-26 | 엘아이지넥스원 주식회사 | Military battery life prediction device and method |
| CN218584979U (en) * | 2022-07-26 | 2023-03-07 | 广州达欧技术检测有限公司 | Calibration device for resistance tester |
| CN116466248A (en) * | 2023-04-10 | 2023-07-21 | 四川省鑫鸣灏锂电池有限责任公司 | Battery capacity detection device and detection method thereof |
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| CN112345953A (en) * | 2020-11-05 | 2021-02-09 | 北京国电光宇机电设备有限公司 | Internal resistance tester for storage battery |
| CN116338491A (en) * | 2023-03-19 | 2023-06-27 | 河南工学院 | A battery remaining capacity measuring device |
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