New energy automobile battery testing device

Abstract

The invention belongs to the technical field of battery testing, and discloses a new energy automobile battery testing device which comprises a base, a middle cavity is fixedly installed in the middle of the upper surface of the base and made of heat insulation materials, and guide cavities are symmetrically and fixedly installed on the left side and the right side of the base and made of heat conduction insulation materials. The sides, away from the middle cavity, of the outer side faces of the guide cavities are fixedly sleeved with spacer bushes, the spacer bushes are made of heat insulation materials, the rear sides of the inner curved faces of the two guide cavities are fixedly sleeved with first contact rails, the front sides of the two guide cavities and the front side of the middle cavity are fixedly sleeved with second contact rails, and the sides, away from the middle cavity, of the inner cavities of the two guide cavities are symmetrically provided with elastic mechanisms. By measuring the position of the variable resistance block on the resistance rod when the first electromagnet cannot overcome the elastic force of the compressed first elastic piece, the output power consumption change of the battery at different cold and hot change temperatures is detected, so that the problems of complicated steps and low detection efficiency of the existing battery cold and hot test device are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery testing, and particularly relates to a battery testing device for new energy vehicles. Background Art

[0002] During the research and development and production of new energy vehicle batteries, it is crucial to ensure the stability and performance of the batteries under various environmental conditions. Although existing battery detection devices can provide basic testing functions, they have significant deficiencies in detecting the expansion degree and output power consumption changes of batteries under simulated cold and hot alternating environments. These existing devices are usually inefficient and have cumbersome operation steps, unable to meet the high requirements of modern battery research and development and quality control.

[0003] Firstly, detecting the expansion degree of the battery in a cold and hot alternating environment is one of the important indicators for evaluating its long-term reliability and safety. However, most current testing devices can only measure under a single temperature condition and lack effective means to simulate the frequent temperature fluctuations encountered in actual use. In addition, in order to obtain data at different temperature points, technicians often need to manually adjust the environmental temperature and wait for the system to reach a steady state. This process not only takes time but also easily introduces human errors, affecting the accuracy of the test results. Secondly, for the detection of the output power consumption changes of the battery at different cold and hot changing temperatures, existing methods also face many challenges. The traditional testing process requires repeating the complete charge and discharge cycle at each set temperature and recording the corresponding voltage, current, and temperature data. This point-by-point measurement method greatly limits the testing speed and is difficult to capture the transient response characteristics of the battery during rapid temperature changes. More complicatedly, since the internal chemical reaction rate of the battery changes with temperature, traditional devices are difficult to provide real-time dynamic power output analysis, resulting in an inaccurate power consumption curve that cannot fully reflect the performance of the battery under actual working conditions. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery testing device for new energy vehicles to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A new energy vehicle battery testing device, including a base, a middle cavity is fixedly installed in the middle of the upper surface of the base, the middle cavity is made of heat-insulating material, guide cavities are symmetrically and fixedly installed on the left and right sides of the base, the guide cavities are made of heat-conducting and insulating material, a spacer sleeve is fixedly sleeved on the outer side surface of the guide cavity away from the middle cavity, the spacer sleeve is made of heat-insulating material, a first contact rail is fixedly sleeved on the rear side of the inner curved surface of the two guide cavities, a second contact rail is fixedly sleeved on the front side of the two guide cavities and the middle cavity, elastic mechanisms are symmetrically arranged on the side of the inner cavity of the two guide cavities away from the middle cavity, a plurality of valves are circumferentially and equidistantly movably sleeved on the side of the guide cavity away from the middle cavity, a load-carrying mechanism is slidably sleeved between the inner cavities of the two guide cavities and the middle cavity, temperature control mechanisms are arranged on the rear sides of the two guide cavities, and an electric control mechanism is arranged between the two elastic mechanisms and the front surface of the guide cavity. The electric control mechanism includes two support blocks, the two support blocks are respectively fixedly installed on the front surfaces of the two guide cavities, a resistance rod is fixedly installed in the middle of the two support blocks, second elastic members are fixedly installed on the sides of the two support blocks close to the middle cavity, variable resistance blocks are fixedly installed on the sides of the two second elastic members close to the middle cavity, the variable resistance blocks are slidably sleeved on the resistance rod, the contact surface between the resistance rod and the variable resistance block is a smooth surface, second electromagnets are fixedly installed on the sides of the two support blocks away from the middle cavity, capacitors are fixedly installed on the front surfaces of the two guide cavities, electrical detectors are symmetrically and fixedly installed on the upper part of the front surface of the middle cavity, a left electric mechanism is arranged between the left elastic mechanism and the electric control mechanism, a right electric mechanism is arranged between the right elastic mechanism and the electric control mechanism, an obstruction mechanism is arranged on the front side of the middle of the upper surface of the base, and a starting mechanism is arranged on the left side surface of the left guide cavity.

[0006] Preferably, the elastic mechanism includes a socket, the socket is sleeved on the side of the inner curved surface of the guide cavity away from the middle cavity, a first electromagnet is fixedly installed on the side of the socket close to the middle cavity, a first elastic member is fixedly installed on the side of the socket close to the middle cavity, a sliding plug is fixedly installed on the side of the first elastic member close to the middle cavity, and the sliding plug is slidably sleeved on the inner curved surface of the guide cavity.

[0007] Preferably, the load-carrying mechanism includes two battery seats, an electrode is fixedly sleeved in the middle of the two battery seats, a plurality of inner plates are circumferentially and slidably sleeved on the sides of the two battery seats close to the electrode, elastic blocks are symmetrically and fixedly installed on the left and right sides of the outer curved surface of the inner plate, an outer plate is fixedly installed on the outer curved surface of the two elastic blocks, the contact surfaces between the outer plate and the middle cavity and the guide cavity are both rough surfaces, an electric switch is fixedly installed on one side of the curved surface of the two battery seats, the electric switch is fixedly connected to the left electrode, the electric switch is slidably sleeved on the first contact rail, a connecting block is fixedly installed on the right side of the right battery seat, the connecting block is fixedly connected to the right electrode, and the connecting block is slidably sleeved on the second contact rail.

[0008] Preferably, the temperature control mechanism includes a heat conduction sleeve which is slidably sleeved with the guide cavity and the spacer sleeve. An outer sleeve is sleeved on the outer side of the heat conduction sleeve. A container is fixedly sleeved at the rear side of the outer sleeve. A plurality of heat conduction plates are fixedly sleeved at equal intervals on the inner curved surface of the container close to the heat conduction sleeve. The heat conduction plates are fixedly sleeved with the heat conduction sleeve. Among them, a refrigerant is provided in the left container, and a heating agent is provided in the inner cavity of the right container.

[0009] Preferably, the left electric mechanism includes a first left wire. One end of the first left wire is fixedly connected to the left end of the resistance rod. The other end of the first left wire is fixedly connected to the left first electromagnet. The left side detector is connected to the middle of the first left wire. One end of the left first electromagnet is fixedly installed with a second left wire. The other end of the second left wire is fixedly connected to the left end of the left first contact rail. The fixed left end of the resistance rod is connected with a third left wire. One end of the third left wire is fixedly connected to one end of the right second electromagnet. One end of the left variable resistor block is fixedly connected with a fourth left wire. The fourth left wire is connected to the other end of the right second electromagnet. The right capacitor is connected in parallel with the third left wire and the fourth left wire.

[0010] Preferably, the right electric mechanism includes a first right wire. One end of the first right wire is fixedly connected to the right end of the resistance rod. The other end of the first right wire is fixedly connected to the right first electromagnet. The right side detector is connected to the middle of the first right wire. One end of the right first electromagnet is fixedly installed with a second right wire. The other end of the second right wire is fixedly connected to the left end of the right first contact rail. The fixed right end of the resistance rod is connected with a third right wire. One end of the third right wire is fixedly connected to one end of the left second electromagnet. One end of the right variable resistor block is fixedly connected with a fourth right wire. The fourth right wire is connected to the other end of the left second electromagnet. The left capacitor is connected in parallel with the third right wire and the fourth right wire.

[0011] Preferably, the blocking mechanism includes a housing which is fixedly installed on the front side of the upper surface of the base. An elastic block is fixedly installed at the bottom of the inner cavity of the housing. The top end of the elastic block is fixedly installed with a sleeve block which is slidably sleeved with the housing. The top end of the sleeve block is fixedly installed with a friction rod which is in frictional contact with the variable resistor block.

[0012] Preferably, the starting mechanism includes a power supply which is fixedly installed on the left side of the left guide cavity. One end of the power supply is fixedly connected with a first wire. One end of the first wire is connected with a switch which is fixedly installed on the left side of the guide cavity. One end of the switch is connected with a second wire which is connected to the left first electromagnet. One end of the left first electromagnet is connected with a third wire. The other end of the third wire is connected to the second electromagnet. One end of the second electromagnet is connected with a fourth wire. The other end of the fourth wire is connected to the power supply.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, first, the valves on the left and right sides are rotated to separate the valves from the adjacent socket seats. Then, the elastic mechanism and the load-bearing mechanism are sequentially taken out from the inner cavity of the guide cavity. Next, the outer plate, elastic block, and inner plate on either side are slid out together from the middle of the two battery seats. Then, the battery is installed in the middle position between the two battery seats. After that, the outer plate, elastic block, and inner plate are reinstalled back into the battery seats. Then, the load-bearing mechanism is inserted back into the inner curved surface of the guide cavity. At this time, the inner curved surface of the guide cavity pushes the outer plate to squeeze the elastic block to contract, and the elastic block pushes the inner plate to closely fit with the battery. Thus, when the battery expands, the battery pushes the inner plate to move towards the outer plate and squeezes the elastic block to contract, so that the frictional resistance between the outer plate and the inner curved surface of the guide cavity increases along with the expansion degree of the battery, thereby reducing the speed when the elastic mechanism pushes the load-bearing mechanism towards the middle cavity. Furthermore, the power-on time interval of the left power mechanism or the right power mechanism is increased, so as to realize judging the expansion degree of the battery through the power-on time of the electrical detectors on both sides, and thus realizing detecting the expansion degree of the battery in a hot and cold alternating environment.

[0015] 2. When the left power mechanism is powered on in the present invention, the capacitor on the left discharges, enabling the second electromagnet on the left to be powered on. The second electromagnet on the left attracts the variable resistor block on the left to move towards the left and compresses the second elastic member on the left, making the distance between the left end of the resistance rod and the variable resistor block on the left the shortest and the resistance the smallest. At the same time, the first electromagnet on the left attracts the load-bearing mechanism to move towards the left. The load-bearing mechanism pushes the sliding plug on the left to compress the first elastic member, and the load-bearing mechanism drives the electric door to contact the first contact rail on the left. At the same time, the second electromagnet on the right attracts the variable resistor block on the right to move towards the right and compresses the second elastic member on the right, and charges the capacitor on the right. At the same time, the temperature control mechanism on the left cools the battery located in the middle of the load-bearing mechanism through the guide cavity on the left, so that the temperature of the battery drops to the test temperature. At this time, the output power of the battery decreases. When the capacitor on the left discharges completely, the second electromagnet on the left stops attracting the variable resistor block on the left. At this time, the second elastic member on the left recovers, and the second elastic member on the left pushes the variable resistor block on the left to move towards the right, increasing the distance between the left end of the resistance rod and the variable resistor block on the left and increasing the resistance. Furthermore, the current finally flowing to the first electromagnet on the left decreases until the output power of the first electromagnet on the left cannot overcome the elastic force after the first elastic member is compressed. Then, the first elastic member pushes the load-bearing mechanism to move towards the right through the sliding plug, so that the load-bearing mechanism drives the electric door to separate from the first contact rail on the left and contact the first contact rail on the right, powering on the right power mechanism, and so on in a cycle. Thus, by measuring the position of the variable resistor block on the resistance rod when the first electromagnet cannot overcome the elastic force of the compressed first elastic member, the change in the output power consumption of the battery at different hot and cold change temperatures is detected. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall appearance structure of the present invention;

[0017] Figure 2 Schematic diagram of the elastic mechanism structure of the present invention;

[0018] Figure 3 Schematic diagram of the load-carrying mechanism structure of the present invention;

[0019] Figure 4 Schematic diagram of the temperature control mechanism structure of the present invention;

[0020] Figure 5 Schematic diagram of the circuit structure of the left electric mechanism of the present invention;

[0021] Figure 6 Schematic diagram of the circuit structure of the starting mechanism of the present invention.

[0022] In the figure: 1, base; 2, middle cavity; 3, guide cavity; 301, spacer sleeve; 4, first contact rail; 5, second contact rail; 6, elastic mechanism; 601, socket base; 602, first electromagnet; 603, first elastic member; 604, sliding plug; 7, valve; 8, load-carrying mechanism; 801, battery holder; 802, electrode; 803, inner plate; 804, elastic block; 805, outer plate; 806, electric switch; 807, connecting block; 9, temperature control mechanism; 901, heat conducting sleeve; 902, outer sleeve; 903, container; 904, heat conducting plate; 10, electric control mechanism; 1001, support block; 1002, resistance rod; 1003, second elastic member; 1004, variable resistor block; 1005, second electromagnet; 1006, capacitor; 1007, electrical detector; 1101, first left wire; 1102, second left wire; 1103, third left wire; 1104, fourth left wire; 1201, first right wire; 1202, second right wire; 1203, third right wire; 1204, fourth right wire; 13, blocking mechanism; 1301, housing; 1302, elastic block; 1303, sleeve block; 1304, friction rod; 14, starting mechanism; 1401, power supply; 1402, first wire; 1403, switch; 1404, second wire; 1405, third wire; 1406, fourth wire. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a new energy vehicle battery testing device, including a base 1. In the middle of the upper surface of the base 1, a middle cavity 2 is fixedly installed. The middle cavity 2 is made of heat-insulating material, and the middle cavity 2 is made of heat-insulating ceramic, so as to prevent the left and right low-temperature and high-temperature guide cavities 3 from contacting each other, resulting in a reduction in the refrigeration effect of the left guide cavity 3 and the heating effect of the right guide cavity 3. On the left and right sides of the base 1, guide cavities 3 are symmetrically and fixedly installed. The guide cavity 3 is made of heat-conducting and insulating material, and the guide cavity 3 is made of aluminum nitride. Thus, while the guide cavity 3 has high strength, it also has insulation and heat-conducting properties, thereby preventing short circuits in the internal circuit of the battery testing device and improving the heat-conducting performance of the guide cavity 3, accelerating the heating and cooling of the battery in the middle of the load-carrying mechanism 8 in its inner cavity by the temperature control mechanism 9 through the guide cavity 3, and improving the testing efficiency of the device. On the outer side of the guide cavity 3 away from the middle cavity 2, a spacer sleeve 301 is fixedly sleeved. The spacer sleeve 301 is made of heat-insulating material, and the spacer sleeve 301 is made of heat-insulating ceramic. Thus, when the temperature control mechanism 9 moves towards the middle cavity 2, the heat-conducting sleeve 901 only contacts a part of the guide cavity 3, thereby realizing the adjustment of the temperature of the guide cavity 3 by controlling the contact area between the heat-conducting sleeve 901 and the guide cavity 3. On the rear side of the inner curved surface of the two guide cavities 3, a first contact rail 4 is fixedly sleeved. On the front side of the two guide cavities 3 and the middle cavity 2, a second contact rail 5 is fixedly sleeved;

[0025] On the side of the inner cavity of the two guide cavities 3 away from the middle cavity 2, elastic mechanisms 6 are symmetrically arranged. On the side of the guide cavity 3 away from the middle cavity 2, a plurality of valves 7 are circumferentially and equidistantly movably sleeved. Between the inner cavities of the two guide cavities 3 and the middle cavity 2, a load-carrying mechanism 8 is slidably sleeved. On the rear sides of the two guide cavities 3, temperature control mechanisms 9 are arranged. Between the two elastic mechanisms 6 and the front of the guide cavity 3, an electric control mechanism 10 is arranged. The electric control mechanism 10 includes two support blocks 1001, which are respectively fixedly installed on the front of the two guide cavities 3. In the middle of the two support blocks 1001, a resistance rod 1002 is fixedly installed. On the side of the two support blocks 1001 close to the middle cavity 2, second elastic members 1003 are fixedly installed. On the side of the two second elastic members 1003 close to the middle cavity 2, a variable resistor block 1004 is fixedly installed. The variable resistor block 1004 is slidably sleeved on the resistance rod 1002. The contact surface between the resistance rod 1002 and the variable resistor block 1004 is a smooth surface, thereby reducing the frictional loss between the resistance rod 1002 and the variable resistor block 1004 and improving the service life of the resistance rod 1002 and the variable resistor block 1004. On the side of the two support blocks 1001 away from the middle cavity 2, second electromagnets 1005 are fixedly installed. On the front of the two guide cavities 3, capacitors 1006 are fixedly installed. On the upper part of the front of the middle cavity 2, electrical testers 1007 are symmetrically and fixedly installed. On the left side between the left elastic mechanism 6 and the electric control mechanism 10, a left electric mechanism is arranged. On the right side between the right elastic mechanism 6 and the electric control mechanism 10, a right electric mechanism is arranged. On the front side of the middle of the upper surface of the base 1, an obstruction mechanism 13 is arranged. On the left side surface of the left guide cavity 3, a starting mechanism 14 is arranged.

[0026] As Figure 2and Figure 3 As shown in Figure 3 , the elastic mechanism 6 includes a socket 601 sleeved on the inner curved surface of the guide cavity 3 on the side away from the middle cavity 2. A first electromagnet 602 is fixedly installed on the side of the socket 601 close to the middle cavity 2, and a first elastic member 603 is fixedly installed on the side of the socket 601 close to the middle cavity 2. A sliding plug 604 is fixedly installed on the side of the first elastic member 603 close to the middle cavity 2. The sliding plug 604 is slidably sleeved on the inner curved surface of the guide cavity 3. When the first electromagnet 602 is energized, the first electromagnet 602 drives the load-bearing mechanism 8 to move away from the middle cavity 2 by attracting the adjacent battery holder 801. The load-bearing mechanism 8 squeezes the first elastic member 603 to contract by pushing the sliding plug 604. When the power supplied to the first electromagnet 602 is insufficient, the magnetic force generated by the first electromagnet 602 at this time is not enough to overcome the elastic force of the first elastic member 603 after compression. At this time, the first elastic member 603 resets, and the first elastic member 603 pushes the load-bearing mechanism 8 to move towards the middle cavity 2 through the sliding plug 604.

[0027] As Figures 1 to 3As shown, the load-carrying mechanism 8 includes two battery holders 801. An electrode 802 is fixedly sleeved in the middle of the two battery holders 801. A plurality of inner plates 803 are slidably sleeved on the circumference of one side of the two battery holders 801 close to the electrode 802 at equal intervals. On the left and right sides of the outer curved surface of the inner plate 803, elastic blocks 804 are symmetrically and fixedly installed. On the outer curved surfaces of the two elastic blocks 804, an outer plate 805 is fixedly installed. The contact surfaces of the outer plate 805 with the middle cavity 2 and the guide cavity 3 are both rough surfaces, so as to increase the frictional resistance between the outer plate 805 and the middle cavity 2 and the guide cavity 3, and reduce the speed when the elastic mechanism 6 pushes the load-carrying mechanism 8 towards the middle cavity 2 when the first elastic member 603 recovers. On one side of the curved surface of the two battery holders 801, a switch 806 is fixedly installed. The switch 806 is fixedly connected to the left electrode 802. The switch 806 is slidably sleeved with the first contact rail 4. On the right side of the right battery holder 801, a connecting block 807 is fixedly installed. The connecting block 807 is fixedly connected to the right electrode 802. The connecting block 807 is slidably sleeved with the second contact rail 5. When in use, first rotate the valves 7 on the left and right sides to separate the valves 7 from their adjacent socket bases 601. Then, take out the elastic mechanism 6 and the load-carrying mechanism 8 from the inner cavity of the guide cavity 3 in sequence. Then, slide out the outer plate 805, the elastic block 804 and the inner plate 803 on either side together from the middle of the two battery holders 801. Then, install the battery in the middle position between the two battery holders 801. After that, reinstall the outer plate 805, the elastic block 804 and the inner plate 803 back into the battery holders 801. After that, insert the load-carrying mechanism 8 back into the inner curved surface of the guide cavity 3. At this time, the inner curved surface of the guide cavity 3 pushes the outer plate 805 to squeeze the elastic block 804 to contract, and the elastic block 804 pushes the inner plate 803 to closely fit with the battery. Thus, when the battery expands, the battery pushes the inner plate 803 to move towards the outer plate 805 and squeezes the elastic block 804 to contract, so that the frictional resistance between the outer plate 805 and the inner curved surface of the guide cavity 3 increases together with the expansion degree of the battery, thereby reducing the speed when the elastic mechanism 6 pushes the load-carrying mechanism 8 towards the middle cavity 2, and further increasing the time interval between the energization times of the left electric mechanism or the right electric mechanism, so as to realize judging the expansion degree of the battery through the energization times of the electrical detectors 1007 on the left and right sides, and thus realizing the detection of the expansion degree of the battery in a hot and cold alternating environment.

[0028] As Figure 1 and Figure 4As shown, the temperature control mechanism 9 includes a heat conduction sleeve 901. The heat conduction sleeve 901 is slidably sleeved with the guide cavity 3 and the spacer sleeve 301. An outer sleeve 902 is sleeved on the outer side surface of the heat conduction sleeve 901. A container 903 is fixedly sleeved on the rear side of the outer sleeve 902. A plurality of heat conduction plates 904 are fixedly sleeved at equal intervals on the side of the inner curved surface of the container 903 close to the heat conduction sleeve 901. The heat conduction plates 904 are fixedly sleeved with the heat conduction sleeve 901. Among them, a refrigerant is provided in the left container 903, and a heating agent is provided in the inner cavity of the right container 903. During use, by moving the left temperature control mechanism 9 towards the middle cavity 2, the contact area between the left heat conduction sleeve 901 and the left guide cavity 3 is increased, and the temperature of the left guide cavity 3 is reduced. Similarly, by moving the right temperature control mechanism 9 towards the middle cavity 2, the temperature of the right guide cavity 3 is increased, and by increasing the contact area between the heat conduction sleeve 901 and the guide cavity 3, the heat conduction efficiency between the heat conduction sleeve 901 and the guide cavity 3 is improved, so as to further reduce the temperature of the left guide cavity 3 and increase the temperature of the right guide cavity 3, so that the left and right guide cavities 3 respectively cool and heat the batteries moved into their inner cavities through the loading mechanism 8, thereby realizing the change of the output power consumption of the batteries under different gradient cold and hot alternating environments in the subsequent detection.

[0029] As Figure 1 and Figure 5As shown, the left electric mechanism includes a first left wire 1101. One end of the first left wire 1101 is fixedly connected to the left end of the resistance rod 1002, and the other end of the first left wire 1101 is fixedly connected to the first electromagnet 602 on the left side. The left side electrical detector 1007 is connected to the middle of the first left wire 1101. One end of the first electromagnet 602 on the left side is fixedly installed with a second left wire 1102, and the other end of the second left wire 1102 is fixedly connected to the left end of the first contact rail 4 on the left side. The fixed left end of the resistance rod 1002 is connected to a third left wire 1103. One end of the third left wire 1103 is fixedly connected to one end of the second electromagnet 1005 on the right side. One end of the variable resistor block 1004 on the left side is fixedly connected to a fourth left wire 1104, and the fourth left wire 1104 is fixedly connected to the other end of the second electromagnet 1005 on the right side. The capacitor 1006 on the right side is connected in parallel with the third left wire 1103 and the fourth left wire 1104. During use, when the elastic mechanism 6 on the right side pushes the load-carrying mechanism 8 to move to the left side, the load-carrying mechanism 8 drives the electric door 806 to contact the first contact rail 4 on the left side. At this time, one end of the battery in the middle of the load-carrying mechanism 8 has a current that sequentially passes through the electric door 806, the first contact rail 4 on the left side, the second left wire 1102, the first electromagnet 602 on the left side, the first left wire 1101, the left side electrical detector 1007, and the left end of the resistance rod 1002. The current between the left end of the resistance rod 1002 and the variable resistor block 1004 on the left side flows back to the other end of the battery through the resistance rod 1002, the second contact rail 5, and the connection block 807, making the first electromagnet 602 on the left side and the left side electrical detector 1007 energized. At the same time, the current flowing to the left end of the resistance rod 1002 flows through the third left wire 1103 to the capacitor 1006 on the right side and the second electromagnet 1005 on the right side. The current flowing to the second electromagnet 1005 on the right side flows back to the variable resistor block 1004 on the left side through the fourth left wire 1104, thereby making the second electromagnet 1005 on the right side energized to attract the variable resistor block 1004 on the right side to squeeze the second elastic member 1003 on the right side to move to the right side and charge the capacitor 1006 on the right side.

[0030] As Figure 1 and Figure 5As shown in the figure, the right electric motor includes a first right wire 1201. One end of the first right wire 1201 is fixedly connected to the right end of the resistance rod 1002, and the other end of the first right wire 1201 is fixedly connected to the first electromagnet 602 on the right side. The right side electrical detector 1007 is connected to the middle of the first right wire 1201. One end of the first electromagnet 602 on the right side is fixedly installed with a second right wire 1202, and the other end of the second right wire 1202 is fixedly connected to the left end of the first contact rail 4 on the right side. The fixed right end of the resistance rod 1002 is connected with a third right wire 1203. One end of the third right wire 1203 is fixedly connected to one end of the second electromagnet 1005 on the left side. One end of the variable resistor block 1004 on the right side is fixedly connected with a fourth right wire 1204, and the fourth right wire 1204 is fixedly connected to the other end of the second electromagnet 1005 on the left side. The left capacitor 1006 is connected in parallel with the third right wire 1203 and the fourth right wire 1204. When in use, when the elastic mechanism 6 on the left side pushes the load-carrying mechanism 8 to move to the right side, the load-carrying mechanism 8 drives the electric door 806 to contact the first contact rail 4 on the right side. At this time, one end of the battery in the middle of the load-carrying mechanism 8 conducts current successively through the electric door 806, the first contact rail 4 on the right side, the second right wire 1202, the first electromagnet 602 on the right side, the first right wire 1201, the electrical detector 1007 on the right side, and the right end of the resistance rod 1002. The current between the right end of the resistance rod 1002 and the variable resistor block 1004 on the right side flows back to the other end of the battery through the resistance rod 1002, the second contact rail 5, and the connection block 807, so that the first electromagnet 602 on the right side and the electrical detector 1007 on the right side are energized. At the same time, the current flowing to the right end of the resistance rod 1002 flows through the third right wire 1203 to the left capacitor 1006 and the second electromagnet 1005 on the left side. The current flowing to the second electromagnet 1005 on the left side flows back to the variable resistor block 1004 on the right side through the fourth right wire 1204, so that the second electromagnet 1005 on the left side is energized to attract the variable resistor block 1004 on the left side to squeeze the second elastic member 1003 to move to the left side and charge the left capacitor 1006.

[0031] As Figure 1 and Figure 2 As shown in the figure, the blocking mechanism 13 includes a housing 1301. The housing 1301 is fixedly installed on the front side of the upper surface of the base 1. The bottom of the inner cavity of the housing 1301 is fixedly installed with an elastic block 1302. The top of the elastic block 1302 is fixedly installed with a sleeve block 1303. The sleeve block 1303 is slidably sleeved with the housing 1301. The top of the sleeve block 1303 is fixedly installed with a friction rod 1304. The friction rod 1304 is in frictional contact with the variable resistor block 1004. When in use, the elastic block 1302 pushes the sleeve block 1303 to drive the friction rod 1304 to be in close fit with the variable resistor block 1004, so as to increase the frictional resistance between the variable resistor block 1004 and the friction rod 1304, reduce the speed when the second elastic member 1003 pushes the variable resistor block 1004 to move along the resistance rod 1002 towards the middle cavity 2 when the second elastic member 1003 returns, increase the battery output power detection time, and improve the detection accuracy.

[0032] As Figure 1 and Figure 6 shown, the starting mechanism 14 includes a power supply 1401 which is fixedly installed on the left side of the left guide cavity 3. One end of the power supply 1401 is fixedly connected to a first wire 1402. One end of the first wire 1402 is connected to a switch 1403 which is fixedly installed on the left side of the guide cavity 3. One end of the switch 1403 is connected to a second wire 1404. The second wire 1404 is connected to the left first electromagnet 602. One end of the left first electromagnet 602 is connected to a third wire 1405. The other end of the third wire 1405 is connected to the second electromagnet 1005. One end of the second electromagnet 1005 is connected to a fourth wire 1406. The other end of the fourth wire 1406 is connected to the power supply 1401. When in use, the switch 1403 is started, and the current of the power supply 1401 sequentially passes through the first wire 1402, the switch 1403, the second wire 1404, the first electromagnet 602, the third wire 1405, the second electromagnet 1005 and the fourth wire 1406 and returns to the power supply 1401, so that the first electromagnet 602 and the second electromagnet 1005 are energized to work.

[0033] Working principle:

[0034] When the present invention is in use, first, the loading mechanism 8 is taken out from the inner cavity of the guide cavity 3 through the elastic mechanism 6 and the valve 7. Then, the battery is installed in the middle of the loading mechanism 8. After that, the loading mechanism 8 with the installed battery is placed back into the inner cavity of the guide cavity 3, and the elastic mechanism 6 and the valve 7 are reset. Then, the starting mechanism 14 is started. The starting mechanism 14 energizes the second electromagnet 1005 on the left side and the first electromagnet 602 on the left side. At this time, the second electromagnet 1005 on the left side attracts the variable resistor block 1004 on the left side to move to the left and compresses the second elastic member 1003 on the left side to contract, so that the distance between the left end of the resistance rod 1002 and the variable resistor block 1004 on the left side is the shortest and the resistance is the smallest. At the same time, the first electromagnet 602 on the left side attracts the loading mechanism 8 to move to the left. The loading mechanism 8 pushes the left sliding plug 604 to squeeze the first elastic member 603 to contract. The loading mechanism 8 drives the electric door 806 to contact the first contact rail 4 on the left side, so that the left electric mechanism is turned on. At this time, the second electromagnet 1005 on the right side attracts the variable resistor block 1004 on the right side to move to the right and compresses the second elastic member 1003 on the right side to contract, and charges the capacitor 1006 on the right side. At the same time, the temperature control mechanism 9 on the left side cools the battery located in the middle of the loading mechanism 8 through the left guide cavity 3. After the temperature of the battery is reduced to the test temperature, the output power of the battery is reduced;

[0035] Disconnect the starting mechanism 14. At this time, the second elastic member 1003 on the left side resumes, and the second elastic member 1003 on the left side pushes the variable resistor block 1004 on the left side to move to the right, increasing the distance between the left end of the resistance rod 1002 and the variable resistor block 1004 on the left side, increasing the resistance, and further reducing the current flowing to the first electromagnet 602 on the left side until the output power of the first electromagnet 602 on the left side cannot overcome the elastic force after the compression of the first elastic member 603 on the left side. Then, the first elastic member 603 on the left side passes through, and the left sliding plug 604 pushes the load-carrying mechanism 8 to move to the right, causing the load-carrying mechanism 8 to drive the electric switch 806 to separate from the first contact rail 4 on the left side and contact the first contact rail 4 on the right side, energizing the right electric mechanism. The first electromagnet 602 on the right side attracts the load-carrying mechanism 8 to move to the right, and the load-carrying mechanism 8 pushes the sliding plug 604 on the right side to squeeze the first elastic member 603 on the right side to contract. The load-carrying mechanism 8 drives the electric switch 806 to contact the first contact rail 4 on the right side. The second electromagnet 1005 on the left side attracts the variable resistor block 1004 on the left side to move to the left and compresses the second elastic member 1003 on the left side, and charges the capacitor 1006 on the left side. At the same time, the capacitor 1006 on the right side discharges, causing the second electromagnet 1005 on the right side to continuously attract the variable resistor block 1004 on the right side for a period of time to heat the battery to the test temperature through the guide cavity 3 on the right side for the temperature control mechanism 9 on the right side. At this time, the capacitor 1006 on the right side discharges completely, and the second elastic member 1003 on the right side resumes. The second elastic member 1003 on the right side pushes the variable resistor block 1004 to move to the left first, increasing the distance between the right end of the resistance rod 1002 and the variable resistor block 1004 on the right side, increasing the resistance, and reducing the output power consumption of the right electric mechanism until the elastic mechanism 6 on the right side pushes the load-carrying mechanism 8 to move to the left, causing the left electric mechanism to be energized again, and cycling in turn, so as to realize detecting the change in the output power consumption of the battery at different cold and hot temperatures by measuring the position of the variable resistor block 1004 on the resistance rod 1002 when the first electromagnet 602 cannot overcome the elastic force of the compressed first elastic member 603.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery testing device, comprising a base (1), characterized in that: A middle cavity (2) is fixedly installed in the middle of the upper surface of the base (1), and the middle cavity (2) is made of a heat-insulating material. Guide cavities (3) are symmetrically fixedly installed on the left and right sides of the base (1), and the guide cavities (3) are made of a heat-conducting insulating material. A spacer (301) is fixedly sleeved on the side of the outer side of the guide cavity (3) away from the middle cavity (2), and the spacer (301) is made of a heat-insulating material. A first contact rail (4) is fixedly sleeved on the rear side of the inner curved surface of the two guide cavities (3), and a second contact rail (5) is fixedly sleeved on the front side of the two guide cavities (3) and the middle cavity (2). The side of the inner cavity of the guide cavity (3) away from the middle cavity (2) is symmetrically provided with elastic mechanisms (6); the side of the guide cavity (3) away from the middle cavity (2) is circumferentially equidistantly and movably sleeved with a plurality of valves (7); a loading mechanism (8) is slidably sleeved between the inner cavities of the two guide cavities (3) and the middle cavity (2); a temperature control mechanism (9) is provided on the rear sides of the two guide cavities (3); an electric control mechanism (10) is provided between the two elastic mechanisms (6) and the front of the guide cavity (3); the electric control mechanism (10) comprises two support blocks (1001); the two support blocks (1001) are respectively fixed The invention is installed in front of the two guide cavities (3), a resistance rod (1002) is fixedly installed in the middle of the two support blocks (1001), a second elastic member (1003) is fixedly installed on one side of the two support blocks (1001) close to the middle cavity (2), and a variable resistance block (1004) is fixedly installed on the two second elastic members (1003) and the side close to the middle cavity (2), the variable resistance block (1004) and the resistance rod (1002) are slidably sleeved, and the contact surface between the resistance rod (1002) and the variable resistance block (1004) is a smooth surface, and the resistance rod (1002) and the variable resistance block (1004) are connected to each other from the two support blocks (1001). 1) A second electromagnet (1005) is fixedly installed on the side away from the middle cavity (2), a capacitor (1006) is fixedly installed in front of the two guide cavities (3), an electric meter (1007) is symmetrically fixedly installed on the upper part of the front of the middle cavity (2), a left electric mechanism is provided between the elastic mechanism (6) on the left and the electric control mechanism (10), and a right electric mechanism is provided between the elastic mechanism (6) on the right and the electric control mechanism (10), an obstruction mechanism (13) is provided on the front side of the middle part of the upper surface of the base (1), and a starting mechanism (14) is provided on the left side of the guide cavity (3) on the left.

2. A new energy vehicle battery testing device according to claim 1, characterized in that: The elastic mechanism (6) comprises a sleeve (601), the sleeve (601) being sleeved on a side of the inner curved surface of the guide cavity (3) away from the middle cavity (2), a first electromagnet (602) being fixedly mounted on a side of the sleeve (601) close to the middle cavity (2), a first elastic member (603) being fixedly mounted on a side of the sleeve (601) close to the middle cavity (2), a sliding plug (604) being fixedly mounted on a side of the first elastic member (603) close to the middle cavity (2), and the sliding plug (604) being slidably sleeved on the inner curved surface of the guide cavity (3).

3. A new energy vehicle battery testing device according to claim 2, characterized in that: The object-carrying mechanism (8) comprises two battery seats (801), the middle parts of the two battery seats (801) are fixedly sleeved with electrodes (802), a plurality of inner plates (803) are equidistantly slidably sleeved on one side of the two battery seats (801) close to the electrodes (802), elastic blocks (804) are symmetrically fixedly mounted on the left and right sides of the outer curved surfaces of the inner plates (803), outer plates (805) are fixedly mounted on the outer curved surfaces of the two elastic blocks (804), and the outer plates (805) are aligned with the middle cavity (2 ) and the contact surface of the guide cavity (3) are both rough surfaces, an electric switch (806) is fixedly installed on one side of the curved surface of the two battery holders (801), the electric switch (806) is fixedly connected to the left electrode (802), the electric switch (806) is slidably sleeved with the first contact rail (4), and a connecting block (807) is fixedly installed on the right side of the right battery holder (801), the connecting block (807) is fixedly connected to the right electrode (802), and the connecting block (807) is slidably sleeved with the second contact rail (5).

4. A new energy vehicle battery testing device according to claim 3, characterized in that: The temperature control mechanism (9) comprises a heat-conducting sleeve (901), the heat-conducting sleeve (901) is slidably sleeved with the guide cavity (3) and the spacer sleeve (301), the outer side surface of the heat-conducting sleeve (901) is sleeved with an outer jacket (902), the rear side of the outer jacket (902) is fixedly sleeved with a container (903), a side of the inner curved surface of the container (903) close to the heat-conducting sleeve (901) is equidistantly fixedly sleeved with a plurality of heat-conducting plates (904), the heat-conducting plates (904) are fixedly sleeved with the heat-conducting sleeve (901), wherein a refrigerant is provided in the container (903) on the left side, and a heating agent is provided in the inner cavity of the container (903) on the right side.

5. A new energy vehicle battery testing device according to claim 4, characterized in that: The left electric mechanism comprises a first left wire (1101), one end of the first left wire (1101) is fixedly connected to the left end of the resistance rod (1002), the other end of the first left wire (1101) is fixedly connected to the first electromagnet (602) on the left side, the electric measuring device (1007) on the left side is connected to the middle part of the first left wire (1101), one end of the first electromagnet (602) on the left side is fixedly installed with a second left wire (1102), the other end of the second left wire (1102) is connected to the left end of the first contact rail (4) on the left side, and the electric measuring device (1007) on the left side is connected to the middle part of the first left wire (1101). The fixed left end of the resistor rod (1002) is connected to a third left wire (1103), one end of the third left wire (1103) is fixedly connected to one end of the second electromagnet (1005) on the right side, one end of the variable resistance block (1004) on the left side is fixedly connected to a fourth left wire (1104), the fourth left wire (1104) is fixedly connected to the other end of the second electromagnet (1005) on the right side, and the capacitor (1006) on the right side is connected in parallel with the third left wire (1103) and the fourth left wire (1104).

6. A new energy vehicle battery testing device according to claim 5, characterized in that: The right electric mechanism comprises a first right wire (1201), one end of the first right wire (1201) is fixedly connected to the right end of the resistance rod (1002), the other end of the first right wire (1201) is fixedly connected to the first electromagnet (602) on the right side, the electrical measuring device (1007) on the right side is connected to the middle part of the first right wire (1201), one end of the first electromagnet (602) on the right side is connected to the second right wire (1202), the other end of the second right wire (1202) is connected to the left end of the first contact rail (4) on the right side The resistor rod (1002) is fixedly connected to a third right wire (1203) at its fixed right end, one end of the third right wire (1203) is fixedly connected to one end of the second electromagnet (1005) on the left, one end of the variable resistance block (1004) on the right is fixedly connected to a fourth right wire (1204), the fourth right wire (1204) is fixedly connected to the other end of the second electromagnet (1005) on the left, and the capacitor (1006) on the left is connected in parallel with the third right wire (1203) and the fourth right wire (1204).

7. A new energy vehicle battery testing device according to claim 6, characterized in that: The obstruction mechanism (13) comprises a casing (1301), wherein the casing (1301) is fixedly mounted on the front side of the upper surface of the base (1); an elastic block (1302) is fixedly mounted at the bottom of the inner cavity of the casing (1301); a casing block (1303) is fixedly mounted on the top of the elastic block (1302); the casing block (1303) is slidably sleeved with the casing (1301); a friction rod (1304) is fixedly mounted on the top of the casing block (1303); and the friction rod (1304) is in frictional contact with the variable resistance block (1004).

8. A new energy vehicle battery testing device according to claim 7, characterized in that: The starting mechanism (14) comprises a power supply (1401), the power supply (1401) is fixedly mounted on the left side of the left guide cavity (3), one end of the power supply (1401) is fixedly connected to a first wire (1402), one end of the first wire (1402) is connected to a switch (1403), the switch (1403) is fixedly mounted on the left side of the guide cavity (3), one end of the switch (1403) is connected to a second wire (1404), the second wire (1404) is connected to the first electromagnet (602) on the left side, one end of the first electromagnet (602) on the left side is connected to a third wire (1405), the other end of the third wire (1405) is connected to the second electromagnet (1005), one end of the second electromagnet (1005) is connected to a fourth wire (1406), the other end of the fourth wire (1406) is connected to the power supply (1401).

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