CN108828278B - Battery test system - Google Patents

Abstract

The invention relates to the technical field of battery testing, and provides a battery testing system which comprises a box body, a drawer structure for accommodating batteries, a testing module for testing battery performance and a lamp holder assembly for displaying testing states, wherein the drawer structure, the testing module and the lamp holder assembly are all arranged on the box body. According to the invention, the battery to be tested can be hidden into the box body for testing through the drawer structure, so that a worker is prevented from touching a testing part, and in addition, the current testing state is indicated through the lamp holder assembly, so that the battery can be tested when no computer is matched temporarily, and the testing efficiency is improved.

Description

Battery test system

Technical Field

The invention relates to the technical field of battery testing, in particular to a battery testing system.

Background

The battery performance test mainly detects the current, voltage, capacity, internal resistance, temperature and battery cycle life of the battery, and gives a graph.

When the existing battery test box is used for testing batteries, the batteries are clamped by the test clamp of the test box, and the test clamp is connected with the outside of the box by wires, so that the test can be carried out along with the clamping, and the test box is convenient.

However, the testing mode has great disadvantages, because a plurality of workers often exist in the testing occasion, the testing clamp is easily touched carelessly to cause unstable clamping, and the tested information is inaccurate.

In addition, the existing battery test box usually needs to be displayed through the cooperation of computer software to know the current battery test state, and is too dependent on a computer, so that when the computer is not available, the battery test is blocked, and the test efficiency is reduced.

Disclosure of Invention

The invention aims to provide a battery test system, which can hide a battery to be tested into a box body for testing through a drawer structure, so that a worker is prevented from touching a test part, and in addition, the current test state is indicated through a lamp holder assembly, so that the battery can be tested when no computer is matched temporarily, and the test efficiency is improved.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the battery testing system comprises a box body, a drawer structure for accommodating a battery, a testing module for testing the performance of the battery and a lamp holder assembly for displaying a testing state, wherein the drawer structure, the testing module and the lamp holder assembly are all installed on the box body.

Further, the drawer structure comprises a drawer bottom which can be pulled out or hidden in the box body, and a plurality of clamps used for clamping batteries and transmitting battery performance information are horizontally and fixedly arranged on the drawer.

Further, the test module includes a signal conversion circuit board for converting battery performance information of various models into a unified signal, and each of the jigs is mounted on the signal conversion circuit board and electrically connected to the signal conversion circuit board.

Further, the lamp holder assembly comprises a plurality of lamp rings capable of emitting different colors to represent different states and a light control circuit board for controlling the light emission of each lamp ring, and the light control circuit board is electrically connected with the test module.

Further, the heat dissipation assembly is used for dissipating heat in the box body.

Further, the heat dissipation assembly comprises a fan and a first heat dissipation opening, the fan is arranged in the box body, the first heat dissipation opening is arranged on one side face of the box body, and the back of the fan is opposite to the first heat dissipation opening.

Further, the heat dissipation assembly further comprises a temperature sensor for detecting the temperature in the box body and a controller for controlling the fan to rotate, and the controller is electrically connected with the temperature sensor.

Further, a frame is included, the frame having a plurality of first mounting locations for resting the case.

Further, the side hanging pieces which can be matched with the first installation positions are installed on the two opposite sides of the box body, and the side hanging pieces are detachably connected with the first installation positions.

Further, the liquid crystal display is installed to the box, the liquid crystal display with the test module electricity is connected, just the liquid crystal display has voltage range display area, electric current range display area, case number display area, detection channel number display area and communication state display area.

Compared with the prior art, the invention has the beneficial effects that: can hide the battery that needs the test into the box internal test through drawer structure, avoided the staff to touch the test position, instruct current test state through the lamp stand subassembly in addition for also can test the battery when temporarily not having the computer to join in marriage, improved test efficiency.

Drawings

Fig. 1 is a schematic structural view of a drawer structure of a battery testing system according to an embodiment of the present invention when the drawer structure is hidden in a box;

fig. 2 is a schematic structural diagram of a battery testing system according to an embodiment of the present invention when a drawer structure is drawn out;

FIG. 3 is an exploded view of a battery testing system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a rack-mounted battery test box according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of an internal circuit module of a battery test box according to an embodiment of the present invention;

Fig. 6 is a signal processing circuit diagram of a battery test box according to an embodiment of the present invention;

FIG. 7 is a power supply circuit diagram of a battery test box according to an embodiment of the present invention;

Fig. 8 is a circuit diagram of signal acquisition of a battery test box according to an embodiment of the present invention;

fig. 9 is a signal control circuit diagram of a battery test box according to an embodiment of the present invention;

Fig. 10 is a communication circuit diagram of a battery test box according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a panel light output circuit of a battery test case according to an embodiment of the present invention;

FIG. 12 is a circuit diagram of a panel light CPU processing circuit of a battery test box according to an embodiment of the invention;

FIG. 13 is a schematic diagram of a control circuit of a panel light of a battery test box according to an embodiment of the present invention;

In the reference numerals: 10, a box upper cover; 11-a lower cover of the box body; 12-foot pads; 13-opening; 14-through holes; 15-a liquid crystal display; a 16-AC power interface; 17-a power switch; an 18-transformer; 19-button cell; 20-drawer bottom; 21-a clamp; 22-drawer rack; 23-sliding rails; 24-drawer plate; 25-acrylic panel; 40-a signal conversion circuit board; 41-a main control CPU circuit board; 42-relay power circuit board; 50-lamp ring; 51-light control circuit board; 52-a light guide block; 61-interface; 70-a fan; 71-a first heat sink; 72-a second heat sink; 80-side hanging pieces; 30-a frame body; 31-a test box; 32-a first mounting location; 33-a second mounting location; 34-a third mounting location; 35-universal wheels; 36-locking member.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-3, an embodiment of the invention provides a battery testing box, which includes a box body and a plurality of clamps 21 for clamping a battery and transmitting battery performance information. The box body is formed by enclosing a box body upper cover 10 and a box body lower cover 11, the box body is provided with a drawer structure, the drawer structure comprises a drawer bottom 20 which can be pulled out of or hidden into the box body, and each clamp 21 is horizontally and fixedly arranged on the drawer bottom 20; a test module for receiving and testing the battery performance information transmitted from each clamp 21 is also installed in the box. In this embodiment, through applying the drawer structure to this test box 31, can guarantee when testing the battery, the battery can be hidden in the box to avoided everything can touch the possibility of battery at the in-process of test, make the battery be in a relatively stable and safe state when being tested, promoted the precision of test. In addition, the clamp 21 for clamping the battery and transmitting the performance information of the battery is horizontally fixed on the drawer bottom 20, so that the battery is always in a flat end state during testing, the battery is prevented from falling off the clamp 21, the testing accuracy is further improved, and the clamp 21 is usually used for testing the button battery 19. When each clamp 21 collects the performance information of the battery, the performance information is transmitted to the test module, and the test module performs test processing on the performance information. The drawer structure has two drawer supports 22 mounted on opposite sides of the housing, respectively, which are capable of supporting the drawer bottom 20.

The drawer structure is optimized, and the drawer structure further comprises a locking component for locking the drawer bottom 20 in the box body and an unlocking component for pushing the unlocked drawer bottom 20 out of the box body. In this embodiment, the locking assembly can be used to lock the drawer bottom 20 in the box body, prevent the drawer bottom 20 from sliding out of the box body, and the unlocking assembly can be used to push out the drawer bottom 20 more conveniently when the drawer bottom 20 needs to be pulled out.

Further optimizing the drawer structure, the locking assembly comprises a magnet, and the drawer bottom 20 is provided with an iron block which can be adsorbed on the magnet. In this embodiment, the locking mode is that the drawer bottom 20 is pushed into the box body in actual operation by being attracted by the magnet, and the iron blocks on the drawer bottom 20 are attracted by the magnet, so that the drawer bottom 20 is locked in the box body. In addition, the locking can also be realized by adopting a clamping manner, and the locking manner is similar to that of a spring pen.

Further optimizing the drawer structure, the unlocking component comprises a spring, one end of the spring is connected with the drawer bottom 20, the other end of the spring can be abutted to the inner side wall of the box body, and the elastic force of the spring extruded by the inner side wall of the box body is larger than the attraction force of the magnet. In this embodiment, the connection between the iron block and the magnet is opened by the elastic force of the spring, and under normal conditions, the spring is in a normal state, and has no pushing force or insufficient pushing force to open the connection between the magnet and the iron block, when the drawer bottom 20 needs to be pulled out, only the drawer structure needs to be pressed into the box body to apply a compression force to the spring, the force at this time is larger than the suction force of the magnet, and after the force application is stopped, the spring ejects the drawer bottom 20. One or more springs may be selected according to the actual situation.

The drawer structure is continuously optimized, the drawer structure further comprises sliding rails 23 arranged on two inner side walls of the box body, and pulleys capable of sliding in each sliding rail 23 are arranged on two sides of the drawer bottom 20. In this embodiment, the unlocked drawer bottom 20 can be easily drawn out and pushed in by the cooperation of the pulleys of the slide rail 23.

As an optimization scheme of the embodiment of the invention, each clamp 21 is a test clamp, and an anti-skid groove is arranged at the contact part of each test clamp and the battery. In this embodiment, these clamps 21 are all test clamps for testing batteries, but it is also possible to self-control the clamps and transmit signals with wires. The anti-skid grooves are arranged at the contact part of each test clamp and the battery, so that the friction force for clamping the battery can be increased, and the battery can be stably clamped when the type of the tested battery is large. The anti-slip groove is composed of a plurality of grooves which are parallel to each other, and preferably, a rubber anti-slip pad can be arranged at the position.

As an optimization scheme of the embodiment of the present invention, referring to fig. 3, the test module includes a signal conversion circuit board 40 for converting various battery performance signals with different models into a unified signal, and each of the clamps 21 is mounted on the signal conversion circuit board 40 and electrically connected to the signal conversion circuit board 40. In this embodiment, the signal conversion circuit board 40 can convert the information of various types of batteries into a unified signal for the main control CPU circuit board 41 to test, so that the main control CPU circuit board 41 only needs to test one signal, and the cost is saved.

Further optimizing the above test module, referring to fig. 3, the test module further includes a main control CPU circuit board 41 for receiving and processing the unified signal, where the main control CPU circuit board 41 is installed in the box body. In this embodiment, the main control CPU circuit board 41 is a core circuit board of the present test module, and its chip can receive the unified signal transmitted from the signal conversion board and then perform test processing, and it is also installed in the box.

Referring to fig. 5 and 6, the main control CPU circuit board 41 is optimized, and a signal processing circuit is disposed on the main control CPU circuit board 41, and the signal processing circuit can process the unified signal, and can also be used for analyzing the instruction issued by the computer end and sending the instruction to other working circuits. The signal processing circuit comprises a main control chip, a U102 chip, a U105 chip, a JP04 chip, a JP06 chip and a 78M05UM8 chip, wherein the main control chip adopts an STM32F103RCT6 chip, a serial clock pin, a serial data pin and a write protection pin of the U102 chip are respectively and electrically connected with a thirty-eighth pin, a thirty-seventh pin and a ninth pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, and the signal processing circuit is used for storing data information and storing basic information and correction coefficients set by hardware. The U105 chip is used to determine the reference voltages of all circuits, i.e. all standard information lines for testing and measurement. The second pin and the third pin of the JP04 chip are respectively and electrically connected with the forty-six pin and the forty-nine pin of the STM32F103RCT6 chip in a one-to-one correspondence manner. The second pin of the JP06 chip is electrically connected with the seventeenth pin of the STM32F103RCT6 chip. The third pin of the JP06 chip is electrically connected with the third pin of the 78M05UM8 chip.

Further optimize the above-mentioned test module, please refer to fig. 5, 6 and 9, the said test module also includes the signal control circuit board, there is signal control circuit on the said signal control circuit board, the signal control circuit is used for obtaining the order that the said master control CPU board transmits, and output the signal to the working circuit after being converted by the data converter chip to realize the open-closed loop control current voltage magnitude on the hardware. The signal control circuit comprises a U301 chip, a U501 chip, a U103 chip, a U104 chip and a U109 chip. The U301 chip and the U501 chip form a data control loop unit, the data control loop unit is used for converting digital signals of a computer end into current and voltage to control the output of a power part, a synchronous data transmission pin, a serial clock pin, a data input pin and a reference voltage pin of the U301 chip are respectively and electrically connected with a tenth pin, an eleventh pin, a fourteenth pin and a fifteenth pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, and the U501 chip is a CD4049 chip. The fifth pin, the sixth pin and the seventh pin of the U103 chip are respectively and electrically connected with the fifty-seven pin, the fifty-eight pin and the fifty-nine pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, the first pin, the second pin and the third pin of the U103 chip are respectively and electrically connected with the fifty-first pin, the fifty-second pin and the fifty-third pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, and the U103 chip is a ULN2003 chip. The first pin of the U104 chip is electrically connected with the twenty-sixth pin of the STM32F103RCT6 chip, the third pin and the second pin of the U104 chip are respectively electrically connected with the twenty-fourth pin and the twenty-fifth pin of the STM32F103RCT6 chip, the fifth pin and the fourth pin of the U104 chip are respectively electrically connected with the twenty-second pin and the twenty-third pin of the STM32F103RCT6 chip, the seventh pin of the U104 chip is electrically connected with the twentieth pin of the STM32F103RCT6 chip, and the U104 chip is a ULN2003 chip. The first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin and the seventh pin of the U109 chip are respectively and correspondingly electrically connected with the thirty-sixth pin, the thirty-fifth pin, the thirty-fourth pin, the thirty-third pin, the thirty-ninth pin and the twenty-seventh pin of the STM32F103RCT6 chip, and the U109 chip is a ULN2003 chip.

With reference to fig. 5, 6 and 8, a signal acquisition circuit for acquiring and converting the current voltage and current signals of the battery is arranged on the signal conversion circuit board 40, and the signal acquisition circuit comprises a U108 chip and a U106 chip. The pin at the output end a, the pin at the output end b, the pin at the output end c and the pin at the output end d of the U108 chip are respectively and correspondingly and electrically connected with the fifteenth pin, the sixteenth pin, the thirteenth pin and the fourteenth pin of the U103 chip one by one, and are used for transmitting collected signals to the signal control circuit. The logic output pin, the serial clock pin and the serial data pin of the U106 chip are respectively and correspondingly electrically connected with the forty-first pin, the forty-first pin and the thirty-second pin of the STM32F103RCT6 chip, and the calibration pin and the chip selection pin of the U106 chip are respectively and electrically connected with the forty-fifth pin and the forty-fourth pin of the STM32F103RCT6 chip. The U108 chip is electrically connected with the U106 chip through an operational amplifier.

Continuing to optimize the test module, referring to fig. 3, the test module further includes a relay power circuit board 42 for controlling power input and output, where the relay power circuit board 42 is electrically connected to the main control CPU circuit board 41. In this embodiment, the relay power circuit board 42 is capable of controlling the input and output of power, providing input and output power to the main control CPU circuit board 41, and is also installed in the case.

Continuing to optimize the test module, please refer to fig. 5, 6 and 10, the test module further includes a communication circuit board, and a communication circuit for transmitting the data converted by the data converter chip to the computer end through isolated communication is disposed on the communication circuit board, so as to realize interaction with the computer end, and facilitate presentation of test information at the computer end. Preferably, the communication circuit comprises a U401 chip, a DC1 chip and a JL1 chip, wherein a first pin and a second pin of the JL1 chip are electrically connected with a thirteenth pin of the U401 chip, a third pin and a fourth pin of the JL1 chip are electrically connected with a twelfth pin of the U401 chip, a fourth pin of the DC1 chip is electrically connected with a sixth pin of the JL1 chip, and a fifth pin of the JL1 chip is electrically connected with a fifty pin of an STM32F103RCT6 chip.

Continuing to optimize the test module, referring to fig. 5 and 7, the test module further includes a power circuit board, and a power circuit for supplying power to the whole circuit and providing a stable and reliable low-ripple separation power supply is arranged on the power circuit board. The power supply circuit may provide voltages of 5V, 12V, and 15V.

As an optimization scheme of the embodiment of the present invention, referring to fig. 3, a plurality of foot pads 12 for preventing the sliding of the case are installed at the bottom of the case. In this embodiment, the mounting of these footpads 12 enhances the anti-slip effect of the box so that the box can be stably placed on a countertop.

Example two

Referring to fig. 3, the case is further optimized, wherein the case has an opening 13 at one side, and the drawer structure further includes a drawer plate 24 capable of covering the opening 13 when being stored in the case, and the drawer plate 24 is equal to the opening 13 in size, so that the drawer plate 24 is integral with the side of the case having the opening 13 when in the locked state. Preferably, an acrylic panel 25 is mounted on the front of the drawer plate 24.

Continuing to optimize the above-mentioned case, referring to fig. 3, the case further has a lamp socket assembly capable of emitting different colors or different forms of light according to the working state, for indicating the current testing state.

With reference to fig. 1-3, the lamp socket assembly includes a plurality of lamp rings 50 and a light control circuit board for controlling the lamp rings 50 to emit light, the light control circuit board is electrically connected with the test module, and the test module can instruct the light control circuit board. The drawer plate 24 has a plurality of through holes 14, each lamp ring 50 is in one-to-one correspondence with each through hole 14, and each lamp ring 50 is positioned at the corresponding through hole 14, so that the light emitted by the lamp ring 50 is easy to penetrate out of the box body to be observed. Each of the lamp rings 50 and the light control circuit board are disposed in the case. Preferably, the number of the lamp rings 50 and the through holes 14 is eight, and the lamp rings 50 are arranged in a line, and all eight lamp rings 50 are electrically connected with the light control circuit board. Thus, the light control circuit board can control the eight lamp rings 50 to emit sixteen colored lights, and the luminous color and the flashing state can represent the working state of the current battery test, for example, the lamp rings 50 are red and rotate clockwise during constant current charging; constant current discharge, the lamp ring 50 is green and rotates anticlockwise; the bezel 50 is orange in color when left standing, and flashes in a breathing manner, etc.

Further optimizing the lamp socket assembly described above, referring to fig. 1 and 2, the lamp socket assembly further includes light guide blocks 52 corresponding to each of the lamp rings 50, each of the light guide blocks 52 is mounted on a side of the lamp ring 50 near the through hole 14, and the light guide blocks 52 can enhance the luminous intensity, so that the lamp socket assembly is easier to observe by people.

And the light control circuit board is optimized, and a panel lamp CPU processing circuit, a panel lamp control circuit and a panel lamp output circuit are arranged on the light control circuit board. The panel light CPU processing circuit is configured to receive the signal from the main control CPU circuit board 41, process the signal, and transmit the processed signal to the panel light control circuit, where the panel light control circuit is configured to send an output instruction to the panel light output circuit according to the signal sent by the panel light CPU processing circuit, and the panel light output circuit is configured to receive the output instruction and drive the lamp ring 50 to emit light.

The panel light CPU processing circuit is optimized, please refer to fig. 6 and 12, and comprises a UM3 chip, a U101 chip, a JP04 chip and a JP05 chip, wherein the UM3 chip adopts an LM1117 chip. The eleventh pin and the twelfth pin of the U101 chip are respectively electrically connected with the thirty-eighth pin and the thirty-seventh pin of the STM32F103RCT6 chip.

With reference to fig. 12 and 13, the panel light control circuit includes eight chips U1-U8 connected in series for controlling eight channels, respectively. The eleventh pin and the thirteenth pin of the U1 chip are respectively and electrically connected with the eighth pin and the ninth pin of the U101 chip.

Referring to fig. 11 and 13, the panel light output circuit includes a plurality of three-color chips, and each three-color chip is electrically connected in turn to the fourth pin to the ninth pin and the sixteenth pin to the twenty-first pin of each U1 chip.

Continuing to optimize the box, referring to fig. 3, an avionics board is further disposed in the box, and the avionics board has a plurality of interfaces 61, each interface 61 corresponds to each through hole 14 one by one, and each interface 61 extends from the corresponding through hole 14 to the outside of the box. The interfaces 61 can be connected with batteries, the batteries are not limited to button batteries 19, any batteries can be connected through the interfaces for testing, and only the connector needs to be replaced. The main control CPU circuit board 41 and the relay power circuit board 42 are electrically connected with the aviation plug board, so that the main control CPU circuit board 41 and the relay power board can be controlled according to the needs by software on a computer. Eight lamp turns 50, eight through holes 14 and eight interfaces 61 represent eight detection channels.

Example III

Continuing to optimize the above-mentioned case, referring to fig. 1-3, a liquid crystal display 15 is mounted on the side of the case having the through hole 14, the signal conversion circuit board 40, the main control CPU circuit board 41, and the relay power circuit board 42 are all electrically connected to the liquid crystal display 15, and the liquid crystal display 15 can display the voltage range, the current range, the case number, the number of the detection channel, the communication status, and the like. The information displayed is synchronized with the main control CPU board 41, relays and computer software.

Example IV

Continuing to optimize the above-described case, referring to fig. 2 and 3, the case has an AC power interface 16 and a power switch 17, the power switch 17 being provided on the side of the case having a drawer plate 24. The AC power is used to power the components in the box, and when the system is started, the power switch 17 is turned on, and when the system is stopped, the power switch 17 is turned off.

With further optimization of the above-mentioned case, referring to fig. 3, a transformer 18 is installed in the case, the high-voltage side of the transformer 18 is electrically connected to the AC power interface 16, and the main control CPU circuit board 41, the relay power circuit board 42, the light control circuit board 51, and the signal conversion circuit board 40 are all electrically connected to the low-voltage side of the transformer 18. In this embodiment, the transformer 18 is provided in the case, so that the utility power can be converted into electricity usable by the components in the case.

Example five

Continuing to optimize the box, referring to fig. 3, a heat dissipation component for dissipating heat is installed in the box. In the testing process, the drawer structure is hidden in the box body, at the moment, the box body is a relatively closed space, so that heat generated by each part during operation can be locked in the box body, and the temperature can be increased along with the accumulation of time, so that the service life of each part is influenced. Therefore, the heat dissipation assembly can effectively dissipate heat of the box body.

Referring to fig. 3, the heat dissipation assembly includes a fan 70 and a first heat dissipation opening 71, the fan 70 is disposed in the case, the first heat dissipation opening 71 is disposed on one side of the case, and the back of the fan 70 is opposite to the first heat dissipation opening 71. In this embodiment, when the fan 70 is operated, on one hand, air in the box is blown to circulate, so as to reduce the temperature in the box, and on the other hand, a part of heat is sucked by the fan 70 and is discharged from the first heat dissipation port 71.

Continuing to optimize the heat dissipating assembly, referring to fig. 3, the heat dissipating assembly further includes second heat dissipating openings 72 provided on the other two sides of the housing. In this embodiment, when the air in the case is blown, heat can be dissipated from both sides to the outside of the case. Preferably, the first heat dissipation port 71 and the two second heat dissipation ports 72 are both mesh structures, which can dissipate heat and prevent foreign matters from entering the box.

Continuing to optimize the heat dissipating assembly, the heat dissipating assembly further comprises a temperature sensor for detecting the temperature in the housing and a controller for controlling the rotation of the fan 70, wherein the controller is electrically connected with the temperature sensor. The temperature sensor can sense the temperature in the box in real time and transmit a temperature signal to the controller, the controller is an existing device, the temperature critical point can be preset when the temperature sensor is put into use, the fan 70 is controlled to rotate when the temperature signal reaches the critical point, and when the temperature of the box is reduced and is lower than the preset temperature critical point, the power supply to the fan 70 is stopped, so that energy can be saved.

Example six

Continuing to optimize the box, installing the side hanging pieces 80 on two opposite sides of the box, in the whole testing system, the box can further comprise a rack for placing the box, the rack is provided with first installation positions 32 for installing the side hanging pieces 80, two first installation positions 32 can be arranged, and the box can be conveniently installed on the rack through the cooperation of the two side hanging pieces 80 and the two first installation positions 32. Preferably, the side hanging member 80 is detachably connected to the first mounting location 32, for example, the side hanging member may be fixed by a screw, or may be fixed by a buckle, which is convenient when the side hanging member needs to be removed and replaced.

The above-mentioned frame is optimized, and the frame is a frame which can be spliced and disassembled, and is formed by a plurality of frame bodies 30. The frame comprises a horizontal splicing structure and a vertical splicing structure, so that two adjacent frame bodies 30 can be spliced horizontally or vertically. In this embodiment, the user can choose whether to splice horizontally or vertically according to the number of the test boxes 31 and the different test environments, so that the resource waste caused by the fixed size of the rack in the prior art can be avoided. For example, there are five test boxes 31, when the height of the test field is enough to accommodate five test boxes 31, and the user can obtain the uppermost box, then vertical splicing can be adopted to splice five frames 30, then five boxes are installed on the corresponding and frame 30, and if there are ten test boxes 31, then all vertical splicing is not practical, even if the field height can accommodate ten boxes placed in the vertical direction, the uppermost several boxes are not easy to operate, and then a horizontal splicing mode can be adopted, or the ten frames 30 are divided into five groups, and then the ten boxes are installed on the corresponding frames 30.

The horizontal splicing structure is optimized, the horizontal splicing structure comprises a third connecting piece and a fourth connecting piece which are arranged on two opposite sides of each frame body, two adjacent frame bodies are spliced through the third connecting piece and the fourth connecting piece, and the third connecting piece and the fourth connecting piece can be matched with each other, namely, the frame is matched with another frame. The third connecting piece is two clamping grooves, and the fourth connecting piece is a clamping block which can be correspondingly inserted into the two clamping grooves, namely, two adjacent frame bodies 30 are connected in a clamping manner. Of course, other than this, screw and bolt connection may be adopted. This is a detachable connection.

The vertical splicing structure is optimized, and the vertical splicing structure comprises a first connecting piece and a second connecting piece which are arranged at the top and the bottom of the frame body 30, and the number of the first connecting piece and the second connecting piece can be multiple, so that the first connecting piece and the second connecting piece are more firmly connected. For example, the number of the connectors is four, and the connectors are arranged at four corners of the frame and are connected in a clamping or threaded manner. They are also detachable connections.

The rack is further optimized, the rack further comprises a computer bracket for installing a computer, and a plurality of second installation positions 33 for detachably installing the computer bracket are arranged on two sides of the rack body 30. By the design, the integrated machine can be directly arranged on the computer bracket, and real-time operation is convenient. As a preferred solution of this embodiment, when there are a plurality of frames 30, each of the second mounting locations 33 is located between two adjacent first mounting locations 32 on the same side of the frame 30, so that after the computer is mounted, the computer is not far from the test box 31, so that a user can operate the computer while operating the test box 31.

Further optimizing the above scheme, the detachable connection between the computer bracket and the frame body 30 can be threaded connection or clamping connection.

Continuing to optimize the frame 30, a plurality of third installation positions 34 for detachably installing the computer bracket are also arranged on the top of the frame 30. The user can select the installation of the computer bracket according to the requirement.

The rack is continuously optimized, and the rack further comprises a plurality of battery trays for placing batteries, each battery tray corresponds to each rack body 30 one by one, and each battery tray is detachably connected with the corresponding rack body 30.

Continuing to optimize the frame, a plurality of universal wheels 35 are arranged at the bottom of the frame body 30. The gantry can be moved to a designated location. As a preferred solution of this embodiment, each of the universal wheels 35 is provided with a locking member 36, and the universal wheels can be locked by the locking member 36 after being moved to a designated position, so as to avoid free sliding.

Example seven

The embodiment of the invention also provides a battery testing device, which comprises a battery testing box for testing the performance of a battery and the rack, wherein two opposite sides of the battery testing box are respectively provided with two side hanging pieces, and the two side hanging pieces are respectively detachably arranged on the two first mounting positions.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A battery test system comprising a housing, characterized in that: the battery testing device also comprises a drawer structure for accommodating batteries, a testing module for testing the performance of the batteries and a lamp holder assembly for displaying the testing state, wherein the drawer structure, the testing module and the lamp holder assembly are all arranged on the box body, the testing module comprises a signal conversion circuit board for converting various different types of battery performance information into unified signals, the drawer structure comprises a drawer bottom which can be pulled out or hidden in the box body, a plurality of clamps for clamping the batteries and transmitting the battery performance information are horizontally and fixedly arranged on the drawer, each clamp is arranged on the signal conversion circuit board, the signal processing circuit comprises an STM32F103RCT6 chip, the signal conversion circuit board and the signal control circuit board are electrically connected with the STM32F103RCT6 chip, the signal control circuit board is provided with a signal control circuit which comprises a U301 chip and a U501 chip for converting digital signals of a computer end into current and voltage to control power output, the U301 chip and the U501 chip form a data control loop unit, and a synchronous data transmission pin, a serial clock pin, a data input pin and a reference voltage pin of the U301 chip are respectively and correspondingly electrically connected with a tenth pin, an eleventh pin, a fourteenth pin and a fifteenth pin of the STM32F103RCT6 chip; The U501 chip is a CD4049 chip, the signal control circuit further comprises a U103 chip, a fifth pin, a sixth pin and a seventh pin of the U103 chip are respectively and electrically connected with a fifty-seven pin, a fifty-eight pin and a fifty-nine pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, the U103 chip is a ULN2003 chip, a signal acquisition circuit is arranged on the signal conversion circuit board and comprises a U108 chip for transmitting acquired signals to the signal control circuit, an a output end pin, a b output end pin, a, The signal acquisition circuit further comprises a U106 chip, wherein a logic output pin, a serial clock pin and a serial data pin of the U106 chip are respectively and electrically connected with a forty-first pin, a forty-first pin and a thirty-first pin of the STM32F103RCT6 chip in a one-to-one correspondence manner, and a calibration pin and a chip selection pin of the U106 chip are respectively and electrically connected with a forty-fifth pin and a forty-fourth pin of the STM32F103RCT6 chip in a one-to-one correspondence manner; The U106 chip is electrically connected with the U108 chip through an operational amplifier.

2. A battery testing system as defined in claim 1, wherein: the lamp holder assembly comprises a plurality of lamp rings capable of emitting different colors to represent different states and a light control circuit board for controlling the light emission of each lamp ring, and the light control circuit board is electrically connected with the test module.

3. A battery testing system as defined in claim 1, wherein: the heat dissipation assembly is used for dissipating heat in the box body.

4. A battery testing system as defined in claim 3, wherein: the heat dissipation assembly comprises a fan and a first heat dissipation opening, the fan is arranged in the box body, the first heat dissipation opening is arranged on one side face of the box body, and the back of the fan is opposite to the first heat dissipation opening.

5. A battery testing system as defined in claim 4, wherein: the heat dissipation assembly further comprises a temperature sensor for detecting the temperature in the box body and a controller for controlling the fan to rotate, and the controller is electrically connected with the temperature sensor.

6. A battery testing system as defined in claim 1, wherein: the housing also includes a frame having a plurality of first mounting locations for resting the box.

7. A battery testing system as defined in claim 6, wherein: the side hanging pieces which can be matched with the first installation positions are installed on two opposite sides of the box body, and the side hanging pieces are detachably connected with the first installation positions.

8. A battery testing system as defined in claim 1, wherein: the liquid crystal display is installed to the box, the liquid crystal display with the test module electricity is connected, just the liquid crystal display has voltage range display area, electric current range display area, case number display area, detection channel number display area and communication state display area.