CN212300654U - Online temperature monitoring device for storage battery binding post - Google Patents
Online temperature monitoring device for storage battery binding post Download PDFInfo
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- CN212300654U CN212300654U CN202022169650.2U CN202022169650U CN212300654U CN 212300654 U CN212300654 U CN 212300654U CN 202022169650 U CN202022169650 U CN 202022169650U CN 212300654 U CN212300654 U CN 212300654U
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Abstract
The utility model discloses a battery terminal post is temperature monitoring devices on line, including device host computer and temperature monitoring main part, the front end of device host computer is provided with the display screen, the temperature monitoring main part is including the casing, the fixed thermistor that is provided with in inside of casing, thermistor's one end is connected with binding post through the wire, the intermediate position of casing is provided with the through-hole, the inboard interval of through-hole is even is provided with a plurality of arc heat conduction piece, the outside of arc heat conduction piece all is provided with adiabatic threaded rod, the lateral wall of casing is passed to the one end of adiabatic threaded rod to set up in the outer end of casing, the adiabatic threaded rod outside is provided with the knob, the one end of arc heat conduction piece is all connected with thermistor through the heat conduction pole. The utility model discloses temperature monitoring effect to battery terminal is better, can adjust the position of arc heat conduction piece through the knob moreover, can carry out on-line monitoring to not unidimensional terminal.
Description
Technical Field
The utility model relates to a temperature monitoring technology field specifically is a battery terminal online temperature monitoring device.
Background
The term "secondary battery" broadly refers to a generic term for all chemical energy batteries that can be recharged and reused after a certain amount of electricity has been used. Also known as rechargeable batteries (rechargeable batteries), can be recharged because the chemistry reverses after an external power source is applied. The chemicals for making the storage battery are various and have different designs; therefore, the voltage, capacity, appearance size, and weight are different.
At present, the monitoring of the storage battery pack in the industry is mainly temperature monitoring of the environment where the storage battery pack is located, and because the thermal conductivity of air is very low, the difference between the actual temperature of a binding post of the storage battery pack and the temperature of the environment is very large, and online monitoring data of the binding post of the storage battery is not accurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery terminal is temperature monitoring device on line to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: an online temperature monitoring device for a storage battery binding post comprises a device host and a temperature monitoring main body, wherein a display screen is arranged at the front end of the device host, a main control unit, an A/D conversion circuit, a communication module and a storage module are fixedly arranged in the device host, the main control unit is electrically connected with the temperature monitoring main body through the A/D conversion circuit, the temperature monitoring main body comprises a shell, a thermistor is fixedly arranged in the shell, one end of the thermistor is connected with a wiring terminal through a lead, a through hole is formed in the middle of the shell, a plurality of arc-shaped heat conduction blocks are uniformly arranged in the through hole at intervals, heat insulation threaded rods are arranged on the outer sides of the arc-shaped heat conduction blocks, one end of each heat insulation threaded rod penetrates through the side wall of the shell and is arranged at the outer end of the shell, and a knob is, one end of each arc-shaped heat conducting block is connected with the thermistor through the heat conducting rod.
In a preferred embodiment, the main control unit adopts a PLC controller, the PLC controller is a 40-point PLC controller, a relay, a data register, a timer, a high-speed counter and a pulse capture module are arranged in the PLC controller, the relay is provided with sixteen, the relay comprises an auxiliary relay and a state relay, the auxiliary relay plays a role in transmitting signals in the PLC controller, and the state relay can be used for power failure maintenance and signal alarm of the PLC controller.
In a preferred embodiment, the heat dissipation mechanism comprises heat dissipation holes which are uniformly spaced and arranged at the rear side of the device host, the two ends of the inner side of the device main machine, which are positioned at the heat dissipation holes, are both fixedly provided with sealing sleeves, the bottom ends inside the sealing sleeves are fixedly provided with heat dissipation blocks, the bottom end of the heat dissipation block is fixedly provided with a conduction rod, the bottom end of the conduction rod penetrates through the side wall of the bottom end of the sealing sleeve, and is fixedly connected with a heat collecting block, the sealing sleeve is internally provided with a sealing piston at the upper end of the heat radiating block, the upper end of the sealing piston is fixedly provided with an L-shaped connecting rod, the upper end of the L-shaped connecting rod penetrates through the side wall of the top end of the sealing sleeve, and the dust guard is fixedly connected with the dust guard, mercury is filled at the bottom end in the sealing sleeve, a filter screen is arranged at the position of the radiating hole, and a sealing gasket is arranged on one side of the dust guard, which is close to the device host.
In a preferred embodiment, the arc-shaped heat-conducting block and the heat-conducting rod are both made of copper nickel-plated materials, black epoxy resin is filled in the shell, the wiring terminal at one end of the wire is connected with the device host, the copper nickel-plated materials have good electrical conductivity, the temperature on the wiring terminal of the storage battery is conveniently conducted to the thermistor through the arc-shaped heat-conducting block and the heat-conducting rod, and the black epoxy resin is used for filling and fixing two poles of the isolated wire, so that short circuit is prevented, and normal operation of the temperature measuring sensor is prevented from being influenced.
In a preferred embodiment, the pulse capture module comprises a voltage output end inside the device host, one end of the voltage output end is connected with a damping resistor, the other end of the damping resistor is electrically connected with a capacitor, the other end of the capacitor is connected with a matching resistor and a matching capacitor, and the other ends of the matching resistor and the matching capacitor are respectively connected with an output end inside the device main body and connected with a wiring terminal.
In a preferred embodiment, the device further comprises an upper computer, and the device host is electrically connected with the upper computer through the communication module.
In a preferred embodiment, the communication module is an RS communication protocol and an RS communication protocol, the display screen is a touch display screen, a transparent protective cover is arranged on the outer side of the display screen, the device host can transmit the detection result to an upper computer through the communication module, and the upper computer can be used for remotely monitoring the temperature in the storage battery pack.
In a preferred embodiment, the heat insulation threaded rod is in threaded connection with the side wall of the shell, and the heat insulation threaded rod is in rotating connection with the arc-shaped heat conduction block, so that the position of the arc-shaped heat conduction block can be conveniently adjusted by the heat insulation threaded rod, and storage battery terminals of different sizes can be clamped.
In a preferred embodiment, the number of the arc-shaped heat conduction blocks is at least three, and a heat conduction rubber pad is arranged on the inner side of each arc-shaped heat conduction block, so that the heat conduction rubber pad can prevent the arc-shaped heat conduction blocks from damaging the storage battery binding posts.
In a preferred embodiment, the data register is arranged between a high-speed counter and the PLC controller, the high-speed counter is a sixteen-bit high-speed counter, and the data register is arranged between the storage module and the PLC controller.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
1. the utility model discloses a be provided with the temperature monitoring main part, carry out on-line temperature monitoring to the battery terminal, utilize the inboard arc heat conduction piece of casing and battery terminal contact, the temperature on the battery terminal can transmit the heat to the thermistor inside the casing through arc heat conduction piece and heat conduction pole, and thermistor can convert the received temperature into the resistance value, then transmits the resistance value to the device host computer through wire and binding post to reach the temperature on the battery terminal, the utility model discloses directly set up the temperature sensing spare and the terminal contact of temperature monitoring main part, can be better to the temperature monitoring effect of battery terminal, and can adjust the position of arc heat conduction piece through the knob, can carry out on-line monitoring to the terminal of different sizes;
2. the utility model discloses a be provided with the device host computer, the host computer, main control unit and pulse capture module, pulse capture module includes damping resistance, the condenser, matching resistance and matching capacitor, on-line monitoring device adopts weak damping working method, can accurately catch complete overvoltage pulse, can reduce the error in the measurement, thereby improve the monitoring of online temperature, main control unit can transmit the temperature that detects on every battery binding post to the host computer through communication module, can the inside temperature of remote monitoring every storage battery, through the setting of data register, can reduce the visit to storage module;
3. the utility model is provided with the heat dissipation mechanism, when in use, the heat dissipation is carried out by utilizing the heat dissipation holes at the rear side of the main machine of the device, the heat collection blocks in the heat dissipation mechanism can absorb the temperature inside the main machine of the device, the heat is transferred to the heat dissipation block through the conduction rod, the heat dissipation block can heat the mercury in the sealing sleeve, so that the mercury expands to push the sealing piston to move upwards, thereby leading the sealing piston to drive the L-shaped connecting rod and the dust guard plate to move upwards, leading the heat dissipation holes to leak out, thereby dissipating the heat inside the main machine of the device, the utility model can adjust the position of the dust guard according to the temperature inside the main machine of the device, thereby adjust the quantity that the louvre exposes, the device host computer internal temperature is higher, and the louvre quantity that uses is more, can enough guarantee the radiating effect of device host computer, can reduce the dust again and get into inside the device host computer for dustproof effect is better.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the temperature monitoring body of the present invention;
fig. 3 is a schematic view of the internal structure of the housing of the present invention;
fig. 4 is a schematic diagram of the signal output structure of the present invention;
FIG. 5 is a schematic diagram of the internal circuit structure of the device host of the present invention;
fig. 6 is a schematic circuit diagram of the pulse capture module of the present invention;
fig. 7 is a schematic view of the rear side structure inside the device main unit of the present invention;
in the figure: 1, a device host; 2 a temperature monitoring body; 3, displaying a screen; 4, a main control unit; 5A/D conversion circuit; 6, a communication module; 7, a shell; 8 a thermistor; 9 a lead; 10 through holes; 11 arc-shaped heat conducting blocks; 12 heat-insulating threaded rods; 13 a heat conducting rod; 14 a relay; 15 a data register; 16, a timer; 17 a high speed counter; 18 a pulse capture module; 19 a connecting terminal; 20, an upper computer; 21 a storage module; 22 a knob; 23 sealing the sleeve; 24 a heat sink block; 25 a conductive rod; 26 a heat collecting block; 27 sealing the piston; a 28L-shaped connecting rod; 29 a dust guard; 30 mercury; 31 heat dissipation holes.
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.
Referring to fig. 1-5, the utility model provides an on-line temperature monitoring device for a storage battery terminal, which comprises a device host 1 and a temperature monitoring main body 2, wherein a display screen 3 is arranged at the front end of the device host 1, a main control unit 4, an a/D conversion circuit 5, a communication module 6 and a storage module 21 are fixedly arranged in the device host 1, the main control unit 4 is electrically connected with the temperature monitoring main body 2 through the a/D conversion circuit 5, the temperature monitoring main body 2 comprises a shell 7, a thermistor 8 is fixedly arranged in the shell 7, one end of the thermistor 8 is connected with a wiring terminal 19 through a wire 9, a through hole 10 is arranged at the middle position of the shell 7, a plurality of arc-shaped heat conducting blocks 11 are uniformly arranged at the inner side of the through hole 10 at intervals, and heat-insulating threaded rods 12 are arranged at the outer sides of the arc-shaped heat conducting blocks, one end of the heat insulation threaded rod 12 penetrates through the side wall of the shell 7 and is arranged at the outer end of the shell 7, a knob 22 is arranged on the outer side of the heat insulation threaded rod 12, and one end of the arc-shaped heat conduction block 11 is connected with the thermistor 8 through the heat conduction rod 13.
In a preferred embodiment, the main control unit 4 adopts a PLC controller, the PLC controller is a 40-point PLC controller, the PLC controller is internally provided with a relay 14, a data register 15, a timer 16, a high-speed counter 17 and a pulse capture module 18, the relay 14 is provided with sixteen, the relay 14 comprises an auxiliary relay and a state relay, the auxiliary relay plays a role in transmitting signals inside the PLC controller, and the state relay can be used for power failure maintenance and signal alarm of the PLC controller.
In a preferred embodiment, the arc-shaped heat-conducting block 11 and the heat-conducting rod 13 are both made of a copper nickel-plated material, black epoxy resin is filled in the shell 7, the connecting terminal 19 at one end of the lead 9 is connected with the device host 1, the copper nickel-plated material has good electrical conductivity, so that the temperature on the terminal of the storage battery can be conveniently conducted to the thermistor through the arc-shaped heat-conducting block 11 and the heat-conducting rod 13, and the black epoxy resin is used for filling and fixing two poles of the isolated lead 9, so that short circuit is prevented and normal operation of the temperature measuring sensor is prevented from being influenced.
Referring to fig. 6, the pulse capture module 18 includes a voltage output terminal inside the device host 1, one end of the voltage output terminal is connected to a damping resistor R1, the other end of the damping resistor R1 is electrically connected to a capacitor C1, the other end of the capacitor C1 is connected to a matching resistor R2 and a matching capacitor C2, the other ends of the matching resistor R2 and the matching capacitor C2 are respectively connected to an output terminal inside the device host 1 and connected to the connection terminal 19, and the pulse capture module 18 adopts a weak damping working mode, so that overvoltage pulses can be captured accurately, and measurement errors of temperature on the storage battery terminals can be reduced.
In a preferred embodiment, the device further comprises an upper computer 20, the device host 1 is electrically connected with the upper computer 20 through the communication module 6, the device host 1 can transmit the detection result to the upper computer 20 through the communication module 6, and the upper computer 20 can be used for remotely monitoring the temperature inside the storage battery pack.
In a preferred embodiment, communication module 6 is RS232 communication protocol and RS485 communication protocol, display screen 3 is the touch display screen, the outside of display screen 3 is provided with transparent protection casing, and communication module 6 conveniently transmits the testing result of device main part 1 for host computer 20.
In a preferred embodiment, the heat insulation threaded rod 12 is in threaded connection with the side wall of the shell 7, the heat insulation threaded rod 12 is in rotating connection with the arc-shaped heat conduction block 11, and the position of the arc-shaped heat conduction block 11 is convenient to adjust by using the heat insulation threaded rod 12, so that storage battery terminals with different sizes can be clamped.
In a preferred embodiment, at least three arc-shaped heat conduction blocks 11 are provided, and a heat conduction rubber pad is arranged on the inner side of each arc-shaped heat conduction block 11, so that the arc-shaped heat conduction blocks 11 can be prevented from damaging the storage battery terminal.
In a preferred embodiment, the data register 15 is disposed between the high speed counter 17 and the PLC controller, the high speed counter 17 is a sixteen-bit high speed counter, and the data register 15 is disposed between the memory module 21 and the PLC controller.
Referring to fig. 7, the heat dissipation mechanism includes heat dissipation holes 31 uniformly spaced at the rear side of the device host 1, sealing sleeves 23 are fixedly disposed at both ends of the heat dissipation holes 31 inside the device host 1, heat dissipation blocks 24 are fixedly disposed at the bottom ends inside the sealing sleeves 23, conducting rods 25 are fixedly disposed at the bottom ends of the heat dissipation blocks 24, the bottom ends of the conducting rods 25 penetrate through the side walls of the bottom ends of the sealing sleeves 23 and are fixedly connected with heat collection blocks 26, sealing pistons 27 are disposed at the upper ends of the heat dissipation blocks 24 inside the sealing sleeves 23, L-shaped connecting rods 28 are fixedly disposed at the upper ends of the sealing pistons 27, the upper ends of the L-shaped connecting rods 28 penetrate through the side walls of the top ends of the sealing sleeves 23 and are fixedly connected with dust-proof plates 29, mercury 30 is filled at the bottom ends inside the sealing sleeves 23, and filter, and a sealing gasket is arranged on one side of the dust-proof plate 29 close to the device host 1.
The utility model discloses a theory of operation: when in use, the through hole 10 of the shell 7 on the temperature monitoring main body 2 is sleeved on a storage battery terminal, then the heat insulation threaded rod 12 is rotated through the knob 22, the heat insulation threaded rod 12 can drive the arc-shaped heat conduction block 11 to approach the storage battery terminal when rotating, so that the arc-shaped heat conduction block 11 is clamped on the storage battery terminal, the display screen 3 on the device host 1 is opened, the temperature on the storage battery terminal can be transmitted to the thermistor 8 through the arc-shaped heat conduction block 11 and the heat conduction rod 13, the thermistor 8 can convert the received temperature into a resistance value, then the resistance value is transmitted to the device host 1 through the lead 9 and the wiring terminal 19, the pulse capture module 18 in the device host 1 can capture the voltage value transmitted by the wiring terminal 19, the pulse capture module 18 adopts a weak damping working mode, can accurately capture complete voltage pulse, and avoid, the device host 1 can detect the voltage after the thermistor 8 transmits the resistance value, then the high-speed counter 17 can be used for calculating the signal captured by the pulse capture module 18, the A/D conversion motor 5 converts the calculated result into temperature to be displayed on the display screen 3, people can check the temperature at the wiring terminal of the storage battery by using the display screen 3, the device host 1 can transmit the detection result to the upper computer 20 by using the communication module 6, people can remotely check the temperature in the storage battery by using the upper computer 20, when the high-speed counter 17 calculates the signal captured by the pulse capture block 18, the data register 15 can store the operand, the operation result, and the intermediate result of the operation, the number of accesses to the storage block 21 can be reduced, and every time the temperature on the terminal of the storage battery is detected, the detected data is stored in the storage module 21;
in the using process, the heat collecting block 26 in the heat dissipation mechanism can absorb the heat inside the device host 1 and transfer the heat to the heat dissipation block 24 through the conduction rod 25, the heat dissipation block 24 heats the mercury 30 inside the sealing sleeve 23, so that the mercury 30 expands when heated and pushes the sealing piston 27 to move upwards, the sealing piston 27 drives the dust-proof plate 29 to move upwards through the L-shaped connecting rod 28, the heat dissipation holes 31 are leaked, the heat dissipation holes 31 are used for heat dissipation, the position of the dust-proof plate 29 can be adjusted according to the temperature inside the device host 1, the exposed number of the heat dissipation holes 31 is adjusted, the higher the temperature inside the device host 1 is, the more the used heat dissipation holes 31 are, the heat dissipation effect of the device host 1 can be ensured, dust can be reduced to enter the inside the device host 1, the dust prevention effect is better, when the device host 1 is not used, the dust-, dust is prevented from entering the inside of the apparatus main body 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery terminal online temperature monitoring device, includes device host computer (1) and temperature monitoring main part (2), its characterized in that: the device comprises a device host (1), wherein a display screen (3) is arranged at the front end of the device host (1), a main control unit (4), an A/D conversion circuit (5), a communication module (6) and a storage module (21) are fixedly arranged in the device host (1), the main control unit (4) is electrically connected with a temperature monitoring main body (2) through the A/D conversion circuit (5), the temperature monitoring main body (2) comprises a shell (7), a thermistor (8) is fixedly arranged in the shell (7), one end of the thermistor (8) is connected with a wiring terminal (19) through a wire (9), a through hole (10) is formed in the middle of the shell (7), a plurality of arc-shaped heat conducting blocks (11) are uniformly arranged on the inner side of the through hole (10) at intervals, and heat insulation threaded rods (12) are arranged on the outer sides of the arc-shaped heat conducting blocks (11, one end of the heat insulation threaded rod (12) penetrates through the side wall of the shell (7) and is arranged at the outer end of the shell (7), a knob (22) is arranged on the outer side of the heat insulation threaded rod (12), one end of the arc-shaped heat conduction block (11) is connected with the thermistor (8) through the heat conduction rod (13), and a heat dissipation mechanism is arranged on the rear side of the device host (1).
2. The battery post terminal on-line temperature monitoring device according to claim 1, characterized in that: the main control unit (4) adopts a PLC controller, the PLC controller is a 40-point PLC controller, a relay (14), a data register (15), a timer (16), a high-speed counter (17) and a pulse capture module (18) are arranged inside the PLC controller, the relay (14) is provided with sixteen, and the relay (14) comprises an auxiliary relay and a state relay.
3. The battery post terminal on-line temperature monitoring device according to claim 1, characterized in that: the heat dissipation mechanism comprises heat dissipation holes (31) which are uniformly arranged at the rear side of the device host (1) at intervals, sealing sleeves (23) are fixedly arranged at two ends of the inner side of the device host (1) which are positioned at the heat dissipation holes (31), heat dissipation blocks (24) are fixedly arranged at the inner bottom ends of the sealing sleeves (23), conducting rods (25) are fixedly arranged at the bottom ends of the heat dissipation blocks (24), the bottom ends of the conducting rods (25) penetrate through the bottom side wall of the sealing sleeves (23) and are fixedly connected with heat collection blocks (26), sealing pistons (27) are arranged at the upper ends of the heat dissipation blocks (24) in the sealing sleeves (23), L-shaped connecting rods (28) are fixedly arranged at the upper ends of the sealing pistons (27), the upper ends of the L-shaped connecting rods (28) penetrate through the top side wall of the sealing sleeves (23) and are fixedly connected, the inside bottom packing of sealed sleeve (23) has mercury (30), louvre (31) department is provided with the filter screen, dust guard (29) are close to the one side of device host computer (1) and are provided with seal ring.
4. The battery post terminal on-line temperature monitoring device according to claim 2, characterized in that: arc heat conduction piece (11) and heat conduction pole (13) all adopt the preparation of copper nickel plating material to form, the inside packing of casing (7) has black epoxy, binding post (19) and device host computer (1) of wire (9) one end are connected.
5. The battery post online temperature monitoring device according to claim 4, characterized in that: the pulse capture module (18) comprises a voltage output end inside the device host (1), one end of the voltage output end is connected with a damping resistor, the other end of the damping resistor is electrically connected with a capacitor, the other end of the capacitor is connected with a matching resistor and a matching capacitor, and the other ends of the matching resistor and the matching capacitor are respectively connected with an output end inside the device host (1) and connected with a wiring terminal (19).
6. The battery post terminal on-line temperature monitoring device according to claim 1, characterized in that: the device is characterized by further comprising an upper computer (20), wherein the device host (1) is electrically connected with the upper computer (20) through a communication module (6).
7. The battery post online temperature monitoring device according to claim 6, characterized in that: communication module (6) are RS232 communication protocol and RS485 communication protocol, display screen (3) are touch display screen, the outside of display screen (3) is provided with transparent protection casing.
8. The battery post terminal on-line temperature monitoring device according to claim 1, characterized in that: the heat insulation threaded rod (12) is in threaded connection with the side wall of the shell (7), and the heat insulation threaded rod (12) is rotationally connected with the arc-shaped heat conduction block (11).
9. The battery post terminal on-line temperature monitoring device according to claim 1, characterized in that: the number of the arc-shaped heat conducting blocks (11) is at least three, and heat conducting rubber pads are arranged on the inner sides of the arc-shaped heat conducting blocks (11).
10. The battery post terminal on-line temperature monitoring device according to claim 2, characterized in that: the data register (15) is arranged between the high-speed counter (17) and the PLC, the high-speed counter (17) is a sixteen-bit high-speed counter, and the data register (15) is arranged between the storage module (21) and the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022169650.2U CN212300654U (en) | 2020-09-28 | 2020-09-28 | Online temperature monitoring device for storage battery binding post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022169650.2U CN212300654U (en) | 2020-09-28 | 2020-09-28 | Online temperature monitoring device for storage battery binding post |
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| Publication Number | Publication Date |
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| CN212300654U true CN212300654U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022169650.2U Active CN212300654U (en) | 2020-09-28 | 2020-09-28 | Online temperature monitoring device for storage battery binding post |
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| Country | Link |
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| CN (1) | CN212300654U (en) |
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- 2020-09-28 CN CN202022169650.2U patent/CN212300654U/en active Active
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