Lithium ion battery operating temperature monitoring device
Technical Field
The utility model particularly relates to a lithium ion battery working temperature monitoring device.
Background
Lithium batteries are extremely sensitive to temperature, and the performance, life and safety of the lithium batteries are obviously affected by the temperature. The too high temperature may cause the acceleration of chemical reactions inside the battery to cause the risks of thermal runaway, short circuit, explosion, etc., while the too low temperature may cause the increase of internal resistance of the battery to reduce the discharge capacity and energy efficiency of the battery. Therefore, when the lithium battery is designed and manufactured and the quality is detected, the real-time and accurate temperature monitoring of the lithium battery is important, and in the lithium battery production process, the temperature distribution condition of the battery surface is monitored in real time by utilizing a thermal infrared imager generally, so that hot spots and temperature gradients on the battery surface can be intuitively observed, the problems of overheat or uneven temperature and the like of the battery are judged, and workers are helped to find potential safety hazards in time.
The existing temperature monitoring device is only provided with thermal infrared imagers in a plurality of appointed directions, improves the accuracy of data through multi-direction monitoring, has a certain monitoring blind area still, cannot monitor the temperature condition of each place of a battery completely, and is generally required to be provided with a plurality of thermal infrared imagers to ensure the full coverage of a monitoring range, so that the use cost is higher, and therefore, the lithium ion battery working temperature monitoring device is provided.
Disclosure of utility model
The utility model aims to provide a lithium ion battery working temperature monitoring device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme that the working temperature monitoring device of the lithium ion battery comprises:
the bottom plate is fixedly provided with an L-shaped mounting frame;
The rotating monitoring frame is rotatably arranged at one end of the L-shaped mounting frame, and the L-shaped mounting frame is provided with a driving mechanism for driving the rotating monitoring frame to rotate;
At least two infrared temperature measuring apparatu, symmetry set up on the rotation monitoring frame in order to monitor two battery temperature between the infrared temperature measuring apparatu.
The battery operating temperature is monitored by two oppositely arranged infrared temperature measuring instruments. The driving mechanism enables the monitoring frame to periodically rotate and drives the infrared temperature measuring instrument to rotate around the battery, so that omnibearing monitoring is realized. Meanwhile, the infrared temperature measuring instrument can move up and down along the vertical rod, the working height is adjusted, and the monitoring device is suitable for monitoring batteries with different sizes.
Preferably, the rotation monitoring frame comprises a hollow rotating shaft, a cross rod, a vertical rod and a sliding mounting table, wherein the hollow rotating shaft is rotatably mounted at one end of the inner side of the L-shaped mounting frame, the cross rod is fixedly connected with the bottom end of the hollow rotating shaft, the lower surface of the cross rod is provided with the vertical rod, and the vertical rod is provided with the sliding mounting table matched with the infrared temperature measuring instrument.
The bedplate supports the infrared temperature measuring instrument, and the movable sleeve moves up and down along the vertical rod, so that a structural foundation is provided for the height adjustment of the movable sleeve.
Preferably, the sliding mounting table comprises a movable sleeve, a bedplate and a locking piece, wherein the movable sleeve is arranged on the vertical rod in a sliding mode, the locking piece is connected to one side of the movable sleeve through a threaded portion, and a clamping groove corresponding to the locking piece is formed in one side wall of the vertical rod.
The fixing of the working height of the infrared temperature measuring instrument is completed through the friction force between the clamping groove and the movable sleeve.
Preferably, the infrared temperature measuring instrument is electrically connected with a cable, the cable is laid along the vertical rod and the cross rod and finally penetrates out of the hollow rotating shaft, and the vertical rod and the cross rod are both provided with wire clamps for fixing the cable.
The cable is prevented from interfering the reciprocating motion of the rotary monitoring frame, and a structural foundation is provided for the rotation of the infrared temperature measuring instrument.
Preferably, a rear isolation cover covered outside the rotation monitoring frame is arranged on the bottom plate, and the front end of the rear isolation cover is detachably connected with a front isolation cover.
The shielding cover body formed by enclosing the shielding cover and the front shielding cover isolates the monitoring environment from the external environment, and reduces the error of external change to the monitoring result.
Preferably, a group of temperature regulating pipes are fixedly arranged at the top end of the front isolation cover, and one of the temperature regulating pipes is connected with an output port of external refrigeration or heating equipment.
The temperature of the environment is monitored in the cover by conveying hot air or cold air into the cover through the temperature regulating pipe, so that the monitoring work is carried out under a specific temperature condition.
Preferably, a group of carbon dioxide fire extinguishing pipes are fixedly arranged at the top end of the rear isolation cover, and one of the carbon dioxide fire extinguishing pipes is connected with an output port of an external carbon dioxide fire extinguisher.
When the monitored battery is in fire, the carbon dioxide fire extinguishing pipe can rapidly convey carbon dioxide to the space in the cover, so that a fire source can be effectively extinguished, and the safety in the monitoring process is improved.
Preferably, the driving mechanism comprises a motor bracket, a driving motor is arranged on the motor bracket, a driving wheel and a driven wheel are respectively and fixedly arranged on an output shaft of the driving motor and the rotation monitoring frame, and the driving wheel is in transmission connection with the driven wheel through a transmission belt.
The driving wheel is driven to rotate through the driving motor, the driven wheel is driven to rotate under the action of the driving belt, and finally the whole rotation of the rotation monitoring frame is realized through the rotation of the driven wheel.
Compared with the prior art, the utility model has the beneficial effects that:
The two oppositely arranged infrared temperature measuring instruments play a role in monitoring the working temperature of the battery, and in the monitoring process, the driving mechanism can drive the rotating monitoring frame to periodically and reciprocally rotate so as to drive the infrared temperature measuring instruments arranged on the rotating monitoring frame to rotate around the battery to be monitored, so that the monitoring work of the battery without dead angles in an omnibearing manner is realized by a small number of infrared temperature measuring instruments, the infrared temperature measuring instruments can move up and down along the vertical rods, and the working height is changed so as to meet the monitoring work of the batteries with different sizes;
In addition, can be later the cage with preceding cage enclose the complete cover body that forms, isolated monitoring environment and external environment, can weaken the error of the monitoring result that the change of external environment arouses.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is a schematic view of a rotation monitoring rack according to the present utility model;
FIG. 4 is a schematic view of a sliding mounting table according to the present utility model;
Fig. 5 is a schematic structural view of a driving mechanism of the present utility model.
The device comprises a base plate, a 2L-shaped mounting rack, a 3 rotation monitoring rack, a 31 hollow rotating shaft, a 32 cross rod, a 33 vertical rod, a 331 clamping groove, a 34 sliding mounting table, a 341 movable sleeve, a 342 platen, a 343, a locking piece, a 35, a wire clamp, a 4 infrared temperature measuring instrument, a 41, a cable, a 5 driving mechanism, a 51, a motor bracket, a 52, a driving motor, a 53, a driving wheel, a 54, a driven wheel, a 55, a driving belt, a 61, a rear isolation cover, a 62, a front isolation cover, a 71, a temperature adjusting pipe, a 72 and a carbon dioxide fire extinguishing pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical scheme of a lithium ion battery working temperature monitoring device, comprising:
the base plate 1, the L-shaped mounting frame 2 is fixed on the base plate 1;
The rotary monitoring frame 3 is rotatably arranged at one end of the L-shaped mounting frame 2, and the L-shaped mounting frame 2 is provided with a driving mechanism 5 for driving the rotary monitoring frame 3 to rotate;
at least two infrared temperature measuring instruments 4 are symmetrically arranged on the rotary monitoring frame 3 to monitor the battery temperature between the two infrared temperature measuring instruments 4.
The infrared temperature measuring instrument 4 that is convenient for set up through two opposite directions plays the monitoring effect to the operating temperature of battery to at the monitoring in-process, actuating mechanism 5 can drive the periodic reciprocal rotation of rotation monitoring frame 3, with this infrared temperature measuring instrument 4 that drives and install on it is around the battery rotation of waiting to monitor, realizes with infrared temperature measuring instrument 4 of less quantity, carries out the monitoring work at all-round no dead angle to the battery, and infrared temperature measuring instrument 4 can reciprocate along montant 33, changes working height, in order to satisfy the monitoring work to the battery of equidimension.
In this embodiment, preferably, the rotation monitoring frame 3 includes a hollow rotating shaft 31, a cross rod 32, a vertical rod 33 and a sliding mounting table 34, the hollow rotating shaft 31 is rotatably mounted at one end of the inner side of the L-shaped mounting frame 2, the bottom end of the hollow rotating shaft 31 is fixedly connected with the cross rod 32, the lower surface of the cross rod 32 is provided with the vertical rod 33, the vertical rod 33 is provided with the sliding mounting table 34 matched with the infrared temperature measuring instrument 4, the platen 342 can play a role of supporting the infrared temperature measuring instrument 4, and the movable sleeve 341 can move up and down along the vertical rod 33, so as to provide a necessary structural foundation for adjusting the height of the infrared temperature measuring instrument 4.
In this embodiment, preferably, the sliding mounting table 34 includes a movable sleeve 341, a platen 342 and a locking member 343, the movable sleeve 341 is slidably sleeved on the vertical rod 33, the locking member 343 is connected to one side of the movable sleeve 341 through a threaded portion, a clamping groove 331 corresponding to the locking member 343 is formed on one side wall of the vertical rod 33, after the height adjustment of the infrared temperature measuring instrument 4 is completed, the locking member 343 is screwed, so that the position of the movable sleeve 341 can be fixed through friction between the locking member 343 and the clamping groove 331, thereby completing the fixation of the working height of the infrared temperature measuring instrument 4.
In this embodiment, preferably, the infrared temperature measuring apparatus 4 is electrically connected with the cable 41, the cable 41 is laid along the vertical rod 33 and the cross rod 32, and finally passes through the hollow rotating shaft 31, and the wire clamps 35 for fixing the cable 41 are arranged on the vertical rod 33 and the cross rod 32, so that the laid cable 41 can be prevented from interfering with the whole reciprocating rotation of the rotation monitoring frame 3, and a necessary structural basis is provided for the rotation of the infrared temperature measuring apparatus 4.
In this embodiment, preferably, the bottom plate 1 is provided with a rear isolation cover 61 covered outside the rotation monitoring frame 3, and the front end of the rear isolation cover 61 is detachably connected with a front isolation cover 62, so that the rear isolation cover 61 and the front isolation cover 62 can enclose a complete cover body formed, isolate the monitoring environment and the external environment, and weaken the error of the monitoring result caused by the change of the external environment.
In this embodiment, preferably, a set of temperature adjusting pipes 71 is fixedly disposed at the top end of the front isolation cover 62, one of which is connected to the output port of the external refrigeration or heating apparatus, so that the temperature adjusting pipes 71 can be used to convey hot air or cold air into the cover, thereby adjusting the temperature of the monitoring environment in the cover, and facilitating the monitoring work under specific temperature conditions.
In this embodiment, preferably, a group of carbon dioxide fire extinguishing pipes 72 are fixedly arranged at the top end of the rear isolation cover 61, one of the carbon dioxide fire extinguishing pipes is connected with the output end of an external carbon dioxide fire extinguisher, and when a monitored battery is in fire, carbon dioxide can be rapidly fed into the space in the cover through the carbon dioxide fire extinguishing pipes 72 to play a role in extinguishing fire, so that the safety during monitoring is improved.
In this embodiment, preferably, the driving mechanism 5 includes a motor bracket 51, on which a driving motor 52 is mounted, meanwhile, a driving wheel 53 and a driven wheel 54 are fixedly mounted on an output shaft of the driving motor 52 and the rotation monitoring frame 3 respectively, and the driving wheel 53 and the driven wheel 54 are connected by a transmission belt 55 in a transmission manner, so that the driving wheel 53 can be driven to rotate by the driving motor 52, and then the driven wheel 54 is driven to rotate under the transmission action of the transmission belt 55, and finally the rotation monitoring frame 3 is driven to integrally rotate by the rotation of the driven wheel 54.
The working principle and the use flow of the utility model are that two oppositely arranged infrared temperature measuring instruments 4 play a role in monitoring the working temperature of the battery, and in the monitoring process, the driving mechanism 5 can drive the rotary monitoring frame 3 to periodically and reciprocally rotate, so as to drive the infrared temperature measuring instruments 4 arranged on the rotary monitoring frame to rotate around the battery to be monitored, thereby realizing the monitoring work of the battery without dead angles in all directions by a small number of infrared temperature measuring instruments 4, and the infrared temperature measuring instruments 4 can move up and down along the vertical rods 33 to change the working height so as to meet the monitoring work of the batteries with different sizes.
In the above process, the driving motor 52 drives the driving wheel 53 to rotate, and then drives the driven wheel 54 to rotate under the transmission action of the transmission belt 55, and finally the rotation monitoring frame 3 is driven to integrally rotate through the rotation of the driven wheel 54.
In addition, the complete cover body formed by enclosing the rear isolation cover 61 and the front isolation cover 62 can isolate the monitoring environment from the external environment, and the error of the monitoring result caused by the change of the external environment can be weakened, wherein the temperature regulating pipe 71 is used for conveying hot air or cold air into the cover, so that the temperature of the monitoring environment in the cover is regulated, the monitoring work is conveniently carried out under the specific temperature condition, and when a monitored battery is in fire, carbon dioxide can be quickly fed into the space in the cover through the carbon dioxide fire extinguishing pipe 72, so that the fire extinguishing effect is realized, and the safety during monitoring is further improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.