CN210665971U - Safety testing device - Google Patents
Safety testing device Download PDFInfo
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- CN210665971U CN210665971U CN201921168502.XU CN201921168502U CN210665971U CN 210665971 U CN210665971 U CN 210665971U CN 201921168502 U CN201921168502 U CN 201921168502U CN 210665971 U CN210665971 U CN 210665971U
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Abstract
An embodiment of the utility model provides a safety testing device is applied to and fills in the discharge test system, can include signal controller, relay, promotion part, isolating device. The first input end of the signal controller is connected with the signal output end of the battery management system, a battery signal is input into the first input end, and the output end of the signal controller outputs a first level or a second level; a first coil terminal of the relay is connected with the output end of the signal controller, a second coil terminal of the relay is connected with the power supply, and the first coil terminal receives a first level or a second level; the first input end of the pushing component is connected with the contact terminal of the relay, and the second input end of the pushing component is connected with a load power supply; the separator is disposed at one side of the pushing member and has a separator accommodating a lithium battery. The utility model discloses can cut off being connected of lithium cell and charging and discharging equipment and make lithium cell and external environment keep apart.
Description
Technical Field
The embodiment of the utility model provides a relate to lithium cell technical field, more specifically relate to a safety test device.
Background
At present, lithium batteries become important energy sources in new energy industries, and have the advantages of high specific capacity, self-discharge rate, high cost performance and the like, so the lithium batteries are widely applied to various devices, such as digital products or road vehicles. In order to know the working characteristics of the lithium battery and ensure the use performance of the lithium battery on equipment, the lithium battery needs to be subjected to charge and discharge tests before being applied to the equipment.
However, in the process of charge and discharge testing, because the chemical characteristics of lithium ions are very active, short circuit is very easy to occur in a lithium battery under the states of overcharge, overcurrent or overtemperature, and further, the temperature of the battery can be rapidly increased and even explode, so that serious potential safety hazards exist. Therefore, in the process of performing charge and discharge tests on the lithium battery, a device for safety protection needs to be arranged to avoid rapid temperature rise and even explosion of the lithium battery due to overcharge, overcurrent or overtemperature and the like, so as to protect the safety of testers.
SUMMERY OF THE UTILITY MODEL
In view of this, for realizing above-mentioned purpose, the utility model provides a safety testing device can be applied to charge-discharge test system, and charge-discharge test system includes lithium cell, battery management system and charging and discharging equipment, and the device includes:
the first input end of the signal controller is connected with the signal output end of the battery management system; a first input end of the signal controller inputs a battery signal; the output end of the signal controller outputs a first level or a second level;
the first coil wiring terminal of the relay is connected with the output end of the signal controller; the second coil terminal of the relay is connected with a power supply; a first coil terminal of the relay receives the first level or the second level;
the first input end of the pushing component is connected with the contact terminal of the relay; the second input end of the pushing component is connected with a load power supply;
an isolation device disposed at one side of the pushing member; the separator has a separator member that accommodates the lithium battery.
Optionally, the signal controller comprises:
the output end of the upper computer is connected with the input end of the signal converter; the first input end of the upper computer is connected with the signal output end of the battery management system; the first input end of the upper computer inputs the battery signal; the output end of the upper computer outputs a first signal or a second signal;
the output end of the signal converter is connected with the first coil wiring end of the relay; the input end of the signal converter inputs the first signal or the second signal; the output end of the signal converter outputs the first level or the second level.
Optionally, the upper computer comprises a second input;
the second output end of the upper computer is connected with the signal output end of the charging and discharging equipment; and a second input end of the upper computer inputs the charge and discharge state signals of the charge and discharge equipment.
Optionally, the pushing member comprises:
the first end of the electromagnetic valve is connected with the contact terminal of the relay; the second end of the electromagnetic valve is connected with the load power supply;
the cylinder is connected with the electromagnetic valve; the cylinder comprises a telescopic rod; the movement of the telescopic rod is controlled by the electromagnetic valve;
the linkage device is connected with the telescopic rod of the air cylinder; the linkage device moves along with the telescopic rod; the lithium battery is placed on the linkage device.
Optionally, the linkage comprises: the two baffles, the locking valve and the connecting strip are arranged;
the two baffle plates are arranged above the isolating device; the lithium batteries are placed on the two baffle plates;
the locking valve is arranged at the joint of the two baffle plates; the switch of the locking valve is closed to control the two baffles to be in a closed state; the switch of the locking valve is connected with the telescopic rod through a connecting strip; and the switch of the locking valve is opened along with the movement of the telescopic rod, so that the two baffles are opened downwards, and the lithium battery falls into the isolation part of the isolation device.
Optionally, the isolation component of the isolation device comprises: a bottom water tank; the bottom water tank comprises a side tank body and a bottom tank body;
the bottom water tank is arranged under the two baffles.
Optionally, the linkage comprises: an object placing plate and a connecting strip;
the lithium battery is placed on the object placing plate; the object placing plate is connected with the telescopic rod through a connecting strip; the object placing plate moves towards the isolating device along with the telescopic rod to turn laterally, so that the lithium battery falls into the isolating device.
Optionally, the isolation component of the isolation device comprises: a side water tank; the side water tank comprises a side tank body and a bottom tank body;
the side box body of the side water tank and the object placing plate are placed at an angle of 90 degrees; the side water tank is arranged below any edge of the object placing plate.
Can know via foretell technical scheme, the embodiment of the utility model provides a can be applied to charge-discharge test system's safety test device, including signal controller, relay, promotion part, isolating device. The first input end of the signal controller is connected with the signal output end of the battery management system, wherein the battery management system in the charging and discharging test system can collect battery signals of the lithium battery and output the battery signals to the signal controller through the signal output end. The signal controller has the capability of converting the battery signal into a first level or a second level, so that the battery signal is input into a first input end of the signal controller, and the first level or the second level is output from an output end of the signal controller; the first coil terminal of the relay is connected with the output end of the signal controller, the second coil terminal of the relay is connected with the power supply, and the first coil terminal of the relay receives a first level or a second level and can respond to the first level or the second level to control the opening and closing state of the relay; the first input end of the pushing component is connected with the contact terminal of the relay, the second input end of the pushing component is connected with a load power supply, and the pushing component executes actions according to the opening and closing state of the relay; the isolation device is arranged on one side of the pushing component, the isolation device is provided with an isolation component for accommodating the lithium battery, and if the pushing component executes actions, the lithium battery falls into the isolation component. It can be understood that the utility model discloses can receive the battery signal of lithium cell in charge-discharge test system operation to can make the lithium cell fall into isolating device when the battery signal is unusual, can cut off being connected of lithium cell and charging and discharging equipment and making lithium cell and external environment keep apart. Further prevent the battery destruction phenomenon that the rapid heating up of lithium cell leads to, avoid exploding, guarantee tester's safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a safety testing device provided by the present invention;
FIG. 2 illustrates a schematic structural diagram of a first alternative safety testing device;
fig. 3 illustrates a schematic structural diagram of a second alternative safety testing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
With the continuous progress of battery technology, the application field of lithium batteries is more and more extensive, and in order to ensure the performance of lithium batteries and improve the production efficiency, a charging and discharging test system is required to be applied to test the charging and discharging of lithium batteries. The charging and discharging test System may mainly include a lithium Battery, a Battery Management System (BMS), and a charging and discharging device, wherein the charging and discharging device is connected to the lithium Battery to charge or discharge the lithium Battery. Generally, the charge and discharge mode of the charge and discharge device may be preset according to the purpose of the test. The battery management system is connected with the lithium battery and can acquire the battery signals of the lithium battery in real time in the operation process of the charge and discharge test system.
In the process of charging and discharging the lithium battery by the charging and discharging test system, the chemical characteristics of lithium ions in the lithium battery are active, so that the temperature of the battery is rapidly increased under the abnormal states of overvoltage, overtemperature or overcurrent, and even explosion is caused. Based on this, need set up safety test device in charge-discharge test system to avoid the battery temperature that leads to under the above-mentioned abnormal condition too high, further avoid the explosion phenomenon of lithium cell, guarantee tester's safety.
Based on this, the utility model provides a safety testing device, this safety testing device can be applied to in the charge-discharge test system that the above-mentioned introduced, as shown in FIG. 1, this charge-discharge test system includes lithium cell, battery management system (BMS as shown in FIG. 1) and charging and discharging equipment, and wherein, charging and discharging equipment links to each other with the lithium cell, and the lithium cell links to each other with this battery management system.
Next, introduce the utility model discloses a safety testing device that the embodiment of the utility model provides in combination with fig. 1, fig. 1 is the utility model provides a safety testing device structure chart can include: signal controller, relay, pushing component and isolating device.
The first input end of the signal controller is connected with the signal output end of the battery management system, and the output end of the signal controller is connected with the relay. The first input end of the signal controller inputs a battery signal, and the output end of the signal controller outputs a first level or a second level.
Optionally, the first input terminal of the signal controller and the signal output terminal of the battery management system may be connected via a CAN bus. The battery management system CAN acquire the battery state variable of the lithium battery connected with the battery management system in real time, and the battery state variable is taken as a battery signal through the output end to be output through the CAN bus. The battery signal may include a voltage, a current, or an electric temperature of the lithium battery during charging and discharging. The signal controller has the capability of converting the battery signal into a first level or a second level, and outputs the converted first level or second level through the output end, wherein the first level is optionally a low level, and the second level is optionally a high level.
The relay comprises a group of coil terminals, wherein the first coil terminal is connected with the output end of the signal controller, and the second coil terminal is connected with the power supply. The first coil terminal of the relay may receive a first level or a second level output from the output terminal of the signal controller and close or open the contact of the relay in response to the first level or the second level.
Alternatively, the relay may include a set of normally open contacts. The signal controller converts a battery signal inputted from a first terminal thereof into a first level or a second level, and the relay may close the contact in response to the second level (high level) received from a first coil terminal thereof. If all the battery signals are normal, the first level (low level) is output, and the relay responds to the second level (low level) received by the first coil terminal to open the contact.
The first input end of the pushing component is connected with the contact terminal of the relay, and the second input end of the pushing component is connected with a load power supply.
Optionally, the push member is energized through the contact terminals after the relay closes the contacts and performs an action. This action may cause the lithium battery to fall into the isolation device to enable the lithium battery to be disconnected from the charging and discharging equipment. The push member loses power after the relay opens the contacts.
Wherein the separator may be disposed at one side of the push member, and the separator has a separator accommodating a lithium battery. The isolation component can isolate the dropped lithium battery from the external environment after the pushing component executes the action.
It should be noted that the power supply of the present invention may include various types, for example, the power supply and the load power supply may include an internal power supply or an external power supply. The embodiment of the present invention only illustrates one of the alternative power supply modes shown in fig. 1.
Can know via foretell technical scheme, the embodiment of the utility model provides a can be applied to charge-discharge test system's safety test device, including signal controller, relay, promotion part, isolating device. The first input end of the signal controller is connected with the signal output end of the battery management system, wherein the charge and discharge test system can collect battery signals of the lithium battery and output the battery signals to the signal controller through the signal output end. The signal controller has the capability of converting the battery signal into a first level or a second level, so that the battery signal is input into a first input end of the signal controller, and the first level or the second level is output from an output end of the signal controller; the first coil terminal of the relay is connected with the output end of the signal controller, the second coil terminal of the relay is connected with the power supply, and the first coil terminal of the relay receives a first level or a second level and can respond to the first level or the second level to control the opening and closing state of the relay; the first input end of the pushing component is connected with the contact terminal of the relay, the second input end of the pushing component is connected with a load power supply, and the pushing component executes actions according to the opening and closing state of the relay; the isolation device is arranged on one side of the pushing component, the isolation device is provided with an isolation component for accommodating the lithium battery, and if the pushing component executes actions, the lithium battery falls into the isolation component. It can be understood that the utility model discloses can receive the battery signal of lithium cell in charge-discharge test system operation to can make the lithium cell fall into isolating device when the battery signal is unusual, can cut off being connected of lithium cell and charging and discharging equipment and making lithium cell and external environment keep apart. Further prevent the battery destruction phenomenon that the rapid heating up of lithium cell leads to, avoid exploding, guarantee tester's safety.
Next, referring to fig. 2, a safety testing device according to an embodiment of the present invention is further described, as shown in fig. 2, the signal controller may specifically include an upper computer and a signal converter.
The first input end of the upper computer is connected with the signal output end of the battery management system, and the output end of the upper computer is connected with the input end of the signal converter. The output end of the signal converter is connected with the first coil terminal of the relay.
Optionally, the battery management system CAN collect the battery state parameters of the lithium batteries connected with the battery management system in real time, and output all the battery state parameters as battery signals to the upper computer through the CAN bus. The upper computer is provided with upper computer testing software which can receive the battery signal through a first input end of the upper computer. The battery signal may include a voltage signal, a current signal, or an electrical temperature signal. And because this test software has the ability that can convert the battery signal into first signal or second signal, the output of the host computer can output first signal or second signal. Alternatively, the first signal may be a 0 signal and the second signal may be a 1 signal.
Optionally, the upper computer test software may preset a battery signal threshold, where the battery signal threshold may include: a voltage threshold, a current threshold, or an electrical temperature threshold. The testing software can compare the battery signal input by the first end of the upper computer with a corresponding battery signal threshold value, and output a first signal (0 signal) or a second signal (1 signal) according to the comparison result. For example, the voltage signal, the current signal or the electrical temperature signal included in the battery signal may be compared with a voltage threshold, a current threshold or an electrical temperature threshold preset in the test software, respectively, when any battery signal exceeds the battery signal threshold corresponding to the battery signal, the second signal (1 signal) is output, and when all battery signals do not exceed the battery signal threshold corresponding to the battery signal, the first signal (0 signal) is output.
Alternatively, the input terminal of the signal converter may input the first signal or the second signal, and the signal converter has a capability of converting the first signal or the second signal into the first level or the second level, so its output terminal may output the first level or the second level based on the first signal or the second signal. Optionally, the first level is a low level and the second level is a high level. For example, the signal converter may input a first signal (0 signal) at its input terminal and convert it into a first level (low level) output. Alternatively, the signal converter may input the second signal (1 signal) at its input terminal and convert it into a second level (high level) output.
The example introduces above-mentioned utility model, and in the charge-discharge test process, the battery management system regards voltage, electric current and the electric temperature of the lithium cell of gathering at the present moment as battery signal output, and host computer test software inputs this voltage signal V, current signal I and electric temperature signal C through the first input of host computer, and when V < Vm and I < Im and C < Cm, the comparison result of host computer test software is normal. At this time, the output end of the upper computer can output a first signal, namely a 0 signal. The input end of the signal converter inputs the first signal (0 signal), and converts the first signal into a first level (low level) and outputs the first level through the output end of the signal converter. And when V is larger than or equal to Vm or I is larger than or equal to Im or C is larger than or equal to Cm, the comparison result of the upper computer test software is overrun. At this time, the output end of the upper computer can output a second signal, namely a 1 signal. The input end of the signal converter inputs the second signal (1 signal), and converts the second signal into a second level (high level) and outputs the second level through the output end of the signal converter. Optionally, the first coil terminal of the relay receiving the high level may control the normally open contact of the relay to close.
It should be noted that the upper computer may further receive an output signal of the charging and discharging device, as shown in fig. 2, the signal controller further includes a second input end, the second input end may be connected to a signal output end of the charging and discharging device, and optionally, the connection mode may include a CAN bus or a serial port. In the process of charging and discharging test, the charging and discharging equipment can output the charging and discharging state signals to the upper computer.
Optionally, the upper computer in the signal controller may further include a display screen, and the display screen may display a battery signal input by a first input end of the upper computer, or a charge-discharge state signal input by a second input end, and may also display a comparison result of the test software on the battery signal and a battery signal threshold.
Next, the embodiment of the present invention is described with respect to a pushing component of a safety testing device, and the pushing component mainly includes: solenoid valve, cylinder and aggregate unit.
The first end of the electromagnetic valve is connected with the contact terminal of the relay, and the second end of the electromagnetic valve is connected with a load power supply.
Alternatively, the relay may include a normally open contact to which the solenoid valve may be connected. When the first coil terminal of the relay receives high level and controls the normally open contact of the relay to be closed, the electromagnetic valve is electrified.
Wherein, the cylinder includes the telescopic link to the cylinder links to each other with the solenoid valve, so the motion of telescopic link is controlled by the solenoid valve, for example, the solenoid valve is electrified, and promotes the telescopic link motion in the cylinder. It is required to explain, the cylinder still includes components such as cylinder, the utility model discloses do not do the repeated description to the concrete component of cylinder.
The linkage device can be connected with the telescopic rod of the air cylinder, and when the telescopic rod moves, the linkage device can move along with the telescopic rod to execute corresponding actions. Because the lithium battery is placed on the linkage device, when the linkage device acts, the position of the lithium battery can be changed, so that the lithium battery is disconnected with the charging and discharging equipment and isolated from the external environment.
Optionally, the linkage may include multiple structures, embodiments of the present invention introduce two of these optional structures. The method specifically comprises the following steps:
first, as shown in fig. 2, the linkage may include: the two baffles (namely the baffle A and the baffle B), the locking valve and the connecting bar;
wherein, two baffles set up in isolating device's top, and the lithium cell can be placed in two baffle tops, and optionally, the lithium cell can be placed in the centre of two baffles. The locking valve s is arranged at the joint of the two baffle plates. And the switch of the locking valve is connected with the telescopic rod through the connecting bar.
Optionally, the switch of the locking valve can be in a closed state, the two baffles are fixed to enable the two baffles to be in a closed state, and the baffles can support the lithium battery. The lithium battery can be subjected to charge and discharge tests on the baffle. When the telescopic rod moves in the cylinder, the switch of the locking valve is opened along with the movement of the telescopic rod, so that the two baffles are opened downwards, and the lithium battery falls into the isolation device (as shown by a dotted arrow in fig. 2). At this time, the lithium battery is disconnected from the charge and discharge device.
In this first utility model structure, the isolation component that the isolation device includes can include the bottom water tank, and this bottom water tank includes side box and bottom box, namely, this water tank is open-top, has the container that holds the lithium cell function. Optionally, the side tank body of the bottom water tank can be a cylinder or a cuboid.
Second, as shown in FIG. 3, an alternative linkage arrangement may alternatively comprise: a storage plate D and a connecting strip. Wherein, it links to each other with the telescopic link to put the thing board through the connecting strip.
Optionally, the lithium cell is placed on putting the thing board, and at this moment, it plays the supporting role to the lithium cell to put the thing board. The lithium battery can be subjected to charge and discharge tests on the object placing plate.
When the telescopic link moved in the cylinder, put the thing board and overturn to the isolating device side (as shown in fig. 3 arrow) along with the telescopic link motion, can make the lithium cell drop to the isolating device in, this moment, the lithium cell and the disconnection of charging and discharging equipment.
In this second utility model structure, the isolation component that isolating device includes can include the side water tank, and this side water tank includes side box and bottom box, promptly, this water tank is open-top, has the container that holds the lithium cell function. Optionally, the side tank body of the bottom water tank can be a cylinder or a cuboid. In addition, as shown in fig. 3, the side box of this side water tank is 90 with putting the thing board and place to this side water tank sets up in putting arbitrary edge below of thing board D, when putting the thing board upset, can make the lithium cell drop to in this side water tank.
It can be understood that, above-mentioned two kinds of utility model structures of optionally can all appear under the unusual condition of battery signal in the lithium cell charge-discharge test procedure, drop to the isolating device in through making the lithium cell to make lithium cell and charging and discharging equipment disconnection, interrupt this process of charge-discharge test. It can be understood that the utility model discloses can avoid among the lithium cell charge-discharge process because voltage, electric current or electric temperature transfinite and lead to the lithium cell to heat up rapidly and explode even. Further, a cooling medium can be added into the isolation component of the isolation device, for example, cold water or other cooling liquid can be added into the bottom water tank or the side water tank. When the lithium battery falls into the isolation component, the temperature can be rapidly reduced.
Based on the above embodiments, and taking the structure of the first linkage device described above as an example, the structure of the present invention will be further described. As shown in fig. 2, the upper computer includes a first input end and a second input end, the first input end of the upper computer is connected with the signal output end of the battery management system, and the second input end of the upper computer is connected with the signal output end of the charging and discharging device. The output of host computer links to each other with signal converter, signal converter's output links to each other with the first coil wiring end of relay, the second coil wiring end of relay links to each other with the power, the normally open contact of relay links to each other with the first end of solenoid valve, load power is connected to the second end of solenoid valve, the cylinder links to each other with the solenoid valve, and can be driven by the solenoid valve, linkage's connecting strip sets up on the flexible member of cylinder, and the lithium cell is placed on two baffles A and B of linkage, these two baffles are closed and are in the closure state through the lock valve. A bottom water tank is arranged right below the two baffle plates, and the top of the bottom water tank is opened.
Optionally, the test software in the upper computer inputs the voltage signal v, the current signal i and the electric temperature signal c through a first input end of the upper computer, the test software determines that v is greater than or equal to Vm, i is less than Im and c is less than Cm through comparison, and the comparison result of the test software of the upper computer is overrun. At this time, the output end of the upper computer outputs a second signal, namely a 1 signal. The input end of the signal converter inputs the second signal (1 signal), and converts the second signal into a second level (high level) and outputs the second level through the output end of the signal converter. This high level control relay normally open contact is received to the first coil wiring end of relay closed, and at this moment, the solenoid valve is electrified, promotes the telescopic link motion in the cylinder, and the lock valve is opened along with the motion of telescopic link to the connecting strip of connection on the telescopic link, and the back is opened to the lock valve, and baffle A and baffle B open downwards from the middle, make the lithium cell drop to the bottom water tank of below along dotted line arrow direction in the bottom water tank. Obviously, when v ≧ Vm, the voltage of lithium cell has exceeded voltage threshold, probably leads to the rapid intensification or the explosion of lithium cell, the utility model discloses can make the lithium cell drop under the excessive pressure state of this lithium cell to break off lithium cell and charging and discharging equipment. Further, when the lithium cell dropped to the spacer, can cool down through the cooling medium among the spacer, further guarantee that the lithium cell can not lead to the explosion because of sharply rising temperature, guaranteed tester's safety.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a safety test device, is applied to charge-discharge test system, charge-discharge test system includes lithium cell, battery management system and charging and discharging equipment, its characterized in that includes:
the first input end of the signal controller is connected with the signal output end of the battery management system; a first input end of the signal controller inputs a battery signal; the output end of the signal controller outputs a first level or a second level;
the first coil wiring terminal of the relay is connected with the output end of the signal controller; the second coil terminal of the relay is connected with a power supply; a first coil terminal of the relay receives the first level or the second level;
the first input end of the pushing component is connected with the contact terminal of the relay; the second input end of the pushing component is connected with a load power supply;
an isolation device disposed at one side of the pushing member; the separator has a separator member that accommodates the lithium battery.
2. The safety testing device of claim 1, wherein the signal controller comprises:
the output end of the upper computer is connected with the input end of the signal converter; the first input end of the upper computer is connected with the signal output end of the battery management system; the first input end of the upper computer inputs the battery signal; the output end of the upper computer outputs a first signal or a second signal;
the output end of the signal converter is connected with the first coil wiring end of the relay; the input end of the signal converter inputs the first signal or the second signal; the output end of the signal converter outputs the first level or the second level.
3. The safety testing device of claim 2, wherein the upper computer comprises a second input;
the second output end of the upper computer is connected with the signal output end of the charging and discharging equipment; and a second input end of the upper computer inputs the charge and discharge state signals of the charge and discharge equipment.
4. The safety testing device of claim 1, wherein the pushing member comprises:
the first end of the electromagnetic valve is connected with the contact terminal of the relay; the second end of the electromagnetic valve is connected with the load power supply;
the cylinder is connected with the electromagnetic valve; the cylinder comprises a telescopic rod; the movement of the telescopic rod is controlled by the electromagnetic valve;
the linkage device is connected with the telescopic rod of the air cylinder; the linkage device moves along with the telescopic rod; the lithium battery is placed on the linkage device.
5. The safety testing device of claim 4, wherein the linkage comprises: the two baffles, the locking valve and the connecting strip are arranged;
the two baffle plates are arranged above the isolating device; the lithium batteries are placed on the two baffle plates;
the locking valve is arranged at the joint of the two baffle plates; the switch of the locking valve is closed to control the two baffles to be in a closed state; the switch of the locking valve is connected with the telescopic rod through a connecting strip; and the switch of the locking valve is opened along with the movement of the telescopic rod, so that the two baffles are opened downwards, and the lithium battery falls into the isolation part of the isolation device.
6. The safety testing device of claim 5, wherein the isolation component of the isolation device comprises: a bottom water tank; the bottom water tank comprises a side tank body and a bottom tank body;
the bottom water tank is arranged under the two baffles.
7. The safety testing device of claim 4, wherein the linkage comprises: an object placing plate and a connecting strip;
the lithium battery is placed on the object placing plate; the object placing plate is connected with the telescopic rod through a connecting strip; the object placing plate moves towards the isolating device along with the telescopic rod to turn laterally, so that the lithium battery falls into the isolating device.
8. The safety testing device of claim 7, wherein the isolation component of the isolation device comprises: a side water tank; the side water tank comprises a side tank body and a bottom tank body;
the side box body of the side water tank and the object placing plate are placed at an angle of 90 degrees; the side water tank is arranged below any edge of the object placing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168502.XU CN210665971U (en) | 2019-07-23 | 2019-07-23 | Safety testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168502.XU CN210665971U (en) | 2019-07-23 | 2019-07-23 | Safety testing device |
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| CN210665971U true CN210665971U (en) | 2020-06-02 |
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| CN201921168502.XU Active CN210665971U (en) | 2019-07-23 | 2019-07-23 | Safety testing device |
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| CN (1) | CN210665971U (en) |
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2019
- 2019-07-23 CN CN201921168502.XU patent/CN210665971U/en active Active
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