CN215600327U - Automatic storage battery discharging device with optimized heat dissipation channel - Google Patents
Automatic storage battery discharging device with optimized heat dissipation channel Download PDFInfo
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- CN215600327U CN215600327U CN202121457054.2U CN202121457054U CN215600327U CN 215600327 U CN215600327 U CN 215600327U CN 202121457054 U CN202121457054 U CN 202121457054U CN 215600327 U CN215600327 U CN 215600327U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an automatic storage battery discharging device with an optimized heat dissipation channel, which comprises an outer cover, wherein a discharging resistor is arranged in the outer cover, and two ends of the discharging resistor are connected with a left side plate and a right side plate of the outer cover; radiating fins are embedded on the surface of the discharge resistor; a heat insulation plate is connected between the left side plate and the right side plate to form a rectangular heat radiation air duct; the top of the left side plate and the top of the right side plate are connected with an annular top plate, and the surface of the top plate is provided with a fixing hole connected with the direct current disc cabinet. The device can also discharge the cabinet through the heat dissipation passageway of special design through centralized watch-dog automatic control battery discharge current, with the in time discharge of a large amount of heats that the battery discharge in-process produced, guarantees DC power supply system's safety and stability and moves to compromise economic nature and cost simultaneously.
Description
Technical Field
The utility model belongs to the technical field of maintenance of storage batteries of direct-current power supply systems, and particularly relates to an automatic storage battery discharging device with an optimized heat dissipation channel.
Background
In the event of a power supply failure, the battery serves as a backup power supply to continue to supply operating power to equipment such as a relay protection device. The factors influencing the service life of the storage battery are many, and the storage battery needs to be periodically detected and maintained to ensure that the capacity of the storage battery meets the system requirement, and huge economic loss caused by equipment misoperation or refusal is avoided.
The regular detection and maintenance work of the storage battery is mainly the nuclear capacity test of the storage battery. The charging of the storage battery is completed by a charging device, which is the basic configuration of the direct current power supply system. The discharge equipment of battery belongs to the apolegamy equipment, generally adopts portable discharge appearance, has bulky, and the during operation need untie battery connecting cable and have potential safety hazards such as ground connection and short circuit. In addition, the current common storage battery discharging equipment installed in the direct-current power supply panel cabinet is concentrated in heating resistance ratio, a heat dissipation channel is not optimally designed, and the front cabinet door and the rear cabinet door are simply opened to naturally dissipate heat, so that certain potential safety hazards exist in the mode, and the normal operation of a direct-current power supply system is influenced.
The prior art has the following defects:
when a mobile discharging instrument is used for discharging, equipment is conveyed to the side of a storage battery pack, so that the risk of reliability reduction of the discharging instrument due to factors such as multiple conveying vibration and the like exists, and meanwhile, a storage battery connecting line needs to be disconnected, so that major potential safety hazards such as short circuit and grounding of the storage battery exist;
2, when the mobile discharging instrument works, the state of the storage battery cannot be automatically monitored, manual measurement is needed, the automation degree is low, and the workload is large;
3, the low-power fixed discharging device adopted at present can be placed in a direct-current panel cabinet due to low power, but can only be suitable for a storage battery pack with small capacity, and cannot meet the requirement for a high-capacity storage battery pack with loads such as UPS (uninterrupted power supply);
4, the traditional discharging device can not realize the automatic charging and discharging function and the activation function of the storage battery, and can not meet the requirements of the current direct current system on the real-time performance and the reliability of remote monitoring.
Therefore, it is necessary to develop a novel discharging device with optimized heat dissipation channel, which can automatically control the discharging current of the storage battery through the centralized monitor, and can discharge a large amount of heat generated in the discharging process of the storage battery out of the discharge cabinet in time through the specially designed heat dissipation channel, thereby ensuring the safe and stable operation of the direct current power supply system and simultaneously taking into account the economy and the cost.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an automatic storage battery discharging device with an optimized heat dissipation channel, which automatically controls the discharging current of a storage battery through a centralized monitor and can timely discharge a large amount of heat generated in the discharging process of the storage battery out of a cabinet through a specially designed heat dissipation channel, thereby ensuring the safe and stable operation of a direct-current power supply system and simultaneously considering the economy and the cost.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an automatic storage battery discharging device with an optimized heat dissipation channel comprises an outer cover, wherein a discharging resistor is arranged inside the outer cover, and two ends of the discharging resistor are connected with a left side plate and a right side plate of the outer cover; radiating fins are embedded on the surface of the discharge resistor; a heat insulation plate is connected between the left side plate and the right side plate to form a rectangular heat radiation air duct; the top of the left side plate and the top of the right side plate are connected with an annular top plate, and the surface of the top plate is provided with a fixing hole connected with the direct current disc cabinet.
Preferably, a top cover is connected above the top plate, heat dissipation holes are formed in the side surface of the top cover, and a steel wire mesh is connected to the surfaces of the heat dissipation holes; 13 shutters are arranged at the top of the top cover, and two ends of the shutters are fixed through cotter pins; when the fan starts, the louver is opened, hot air is blown out from the top of the top cover, and after the fan stops, the louver is closed to prevent foreign matters from falling into the direct current disc cabinet.
Preferably, two ends of the heat insulation plate are connected with the left side plate and the right side plate through support rods; the surface of one side, facing the discharge resistor, of the thermal insulation board is connected with a radiator, and the surface of the radiator is connected with an IGBT module.
Preferably, the surface of one side, back to the discharge resistor, of the thermal insulation board is connected with a control box, a control board arranged in the control box is electrically connected with the shunt, the drive board is electrically connected with the IGBT module, the communication board is connected to external debugging equipment, the fan control module is connected with the fan unit, and the power panel is used for supplying power.
Preferably, the discharge resistor terminal and the shunt are both connected to the copper bar.
Preferably, the fan set comprises a plurality of fans connected to the bottom of the housing.
Preferably, the bottom of the outer cover is provided with a rectangular hole; the rectangular hole is matched with the wiring end at the bottom of the control box; the terminal at the bottom of the control box is connected with a direct current system centralized monitor, a direct current system storage battery polling instrument, an operation panel and a laptop for debugging; the external port in control box bottom has: a 9-pin D-shaped connector plug for connecting a DC system centralized monitor; the 9-pin D-shaped connector socket is used for connecting a direct-current system storage battery polling instrument; a 15-pin D-shaped plug for connecting with an operation panel; the 15-pin D-shaped socket is used for connecting a laptop for debugging; and the strip-shaped power connector socket is used for supplying power to the operation panel.
Preferably, the bottom of the outer cover is provided with a rectangular hole; the rectangular hole is fixed with the insulation board, is fixed with positive wiring stake and negative pole wiring stake on the insulation board.
The utility model has the beneficial effects that:
1, the utility model adopts the high-power PTC ceramic resistor and the large-size radiating fins, thereby effectively reducing the thermal resistance between a heating device and the air and ensuring that the heat of the discharging module can be quickly transferred to the air during the work; the module comprises a heat insulation plate, a left side plate, a right side plate and an outer cover which form relatively independent heat dissipation air channels, all high-power heating elements are arranged inside the air channels and separated from control components by the heat insulation plate, and the heating of power devices is ensured not to influence other components. Meanwhile, a high-power heat dissipation fan unit is adopted, so that heat can be blown out of the direct current disc cabinet in time; in addition, the top of the device is provided with the louver made of light aluminum sheets, when the discharge module operates, the louver is opened under the action of wind, so that hot wind can be blown out from the top of the cabinet body rapidly, and the problem that the wind resistance generated by the turning of the air duct influences the smooth discharge of the hot wind is avoided;
2, the module is provided with a control box, and an IGBT driving circuit and a protection circuit controlled by a single chip microcomputer with a PWM port are used in the control box; in the discharging process, a PWM port of the singlechip is utilized, and the duty ratio of PWM is adjusted by adjusting a PWM control register of the singlechip through a software method on the premise of not changing the PWM square wave period, so that the discharging current is controlled; before the discharge current is adjusted, the single chip microcomputer quickly reads the magnitude of the discharge current, then compares the set discharge current with the actually read discharge current, and if the actual current is smaller, the duty ratio of PWM is adjusted towards the direction of increasing the current; if the actual current is larger, the duty ratio of PWM is adjusted to the direction of reducing the current, so that the aim of accurately controlling the discharge current is fulfilled;
3, the module adopts a shunt as a sensor for measuring the discharge current, the shunt converts a current signal of the discharge current into a voltage signal of 0-75MV in the discharge process, and the voltage signal is compared with a set value of the discharge current after AD conversion, so that the adjustment direction of PWM is determined;
4, the lower end of the module is provided with 1D-type 9-pin connector plug and 1D-type 9-pin connector socket which are respectively connected with a centralized monitor of the direct current system and a storage battery polling instrument and are used for realizing the control of the centralized monitor on a discharging module and monitoring the real-time state of the storage battery, and when the discharging module is arranged in the direct current disc cabinet and is controlled by the centralized monitor, the discharging module becomes a part of the whole direct current system; the centralized monitor directly controls the charger, the storage battery polling instrument and the discharging module, so that the storage battery maintenance work such as automatic charging and discharging of the storage battery pack, activation of the storage battery pack and the like can be realized; in addition, the module is also provided with an operation panel for manual discharging operation of the storage battery.
Drawings
FIG. 1 is an electrical schematic of a discharge module of the present invention;
FIG. 2 is a top view of a discharge module host of the present invention with the top cover removed;
FIG. 3 is a front view of a discharge module host of the present invention;
FIG. 4 is a bottom view of a discharge module according to the present invention;
FIG. 5 is a front view of the discharge module operating panel according to the present invention;
FIG. 6 is a front view of the discharge module operating panel according to the present invention;
FIG. 7 is a top view of the outer appearance of the operation panel of the discharge module according to the present invention;
FIG. 8 is a schematic diagram of the electrical connection of the discharge module during automatic charging and discharging according to the present invention;
the reference numbers in the figures are: the high-voltage power supply comprises a discharge resistor 1, heat radiating fins 2, an IGBT module 3, a heat radiator 4, M5 round head screws 5, phi 5 spring washers 6, phi 5 flat washers 7, a control box 8, a heat insulation board 9, a support rod 10, M8 hexagon head bolts 11, phi 8 spring washers 12, phi 8 flat washers 13, a left side plate 14, a fan 15, M5 self-tapping screws 16, an insulation board 17, a current divider 18, a right side plate 19, M5 hexagon socket head screws 20, M6 hexagon head bolts 21, phi 6 spring washers 22, phi 6 flat washers 23, M6 nuts 24, a top plate 25, a top cover 26, a steel plate net 27, louvers 28, split pins 29, strip-shaped power plugs 30, 9-pin D-type connector plugs 31, 15-pin D-type connector plugs 32, an outer cover 33, a positive terminal stud 34, a negative terminal stud 35, 9-pin D-type connector sockets 36 and 15-pin D-type connector sockets 37.
Detailed Description
Example 1:
as shown in fig. 1 to 7, an automatic discharging device for a storage battery with an optimized heat dissipation channel comprises an outer cover 33, a discharging resistor 1 is arranged inside the outer cover 33, and two ends of the discharging resistor 1 are connected with a left side plate 14 and a right side plate 19 of the outer cover 33; radiating fins 2 are embedded on the surface of the discharge resistor 1; a heat insulation plate 9 is connected between the left side plate 14 and the right side plate 19 to form a rectangular heat radiation air duct; the top of the left side plate 14 and the top of the right side plate 19 are connected with an annular top plate 25, and the surface of the top plate 25 is provided with a fixing hole to be connected with the direct current disc cabinet.
Preferably, a top cover 26 is connected above the top plate 25, heat dissipation holes are formed in the side surface of the top cover 26, and a steel wire mesh is connected to the surfaces of the heat dissipation holes; 13 shutters 28 are arranged at the top of the top cover 26, and two ends of the shutters 28 are fixed through cotter pins 29; when the fan 15 is started, the louver 28 is opened, hot air is blown out from the top of the top cover 26, and after the fan 15 is stopped, the louver 28 is closed to prevent foreign matters from falling into the direct current disc cabinet.
Preferably, the two ends of the heat insulation board 9 are connected with the left side board 14 and the right side board 19 through support rods; the surface of the side, facing the discharge resistor 1, of the thermal insulation board 9 is connected with a radiator 4, and the surface of the radiator 4 is connected with an IGBT module 3.
Preferably, the surface of one side of the heat insulation board 9, which faces away from the discharge resistor 1, is connected with a control box, a control board arranged in the control box is electrically connected with the shunt 18, the drive board is electrically connected with the IGBT module 3, the communication board is connected to an external debugging device, the fan 15 control module is connected with the fan 15 set, and the power supply board is used for supplying power.
Preferably, the terminal of the discharge resistor 1 and the shunt 18 are both connected to the copper busbar.
Preferably, the set of fans 15 includes a plurality of fans 15 attached to the bottom of the enclosure 33.
Preferably, the bottom of the outer cover 33 is provided with a rectangular hole; the rectangular hole is matched with the wiring end at the bottom of the control box; the terminal at the bottom of the control box is connected with a direct current system centralized monitor, a direct current system storage battery polling instrument, an operation panel and a laptop for debugging; the external port in control box bottom has: a 9-pin D-type connector plug 31 for connecting a dc system centralized monitor; a 9-pin D-connector receptacle 36 for connection to a dc system battery polling instrument; a 15-pin D-shaped plug for connecting with an operation panel; the 15-pin D-shaped socket is used for connecting a laptop for debugging; and the strip-shaped power connector socket is used for supplying power to the operation panel.
Preferably, the bottom of the outer cover 33 is provided with a rectangular hole; the rectangular hole is fixed with insulating board 17, is fixed with positive terminal stud 34 and negative terminal stud 35 on the insulating board 17.
Example 2:
the working principle of the utility model is as follows:
s1, removing a top cover plate of the original direct current disc cabinet, integrally installing the discharge device on the top of the direct current disc cabinet, positioning the outer cover 33 in the direct current disc cabinet, and fixedly connecting the top plate 25 with the edge of the top of the direct current disc cabinet;
s2, connecting the positive pole wiring pile 34 and the negative pole wiring pile 35 with a discharge switch of the storage battery pack by cables meeting the requirements; installing an operation panel on a front door panel of the disc cabinet, connecting an RS485 communication port of an automatic discharge module with a direct current system centralized monitor and an RS485 communication port of a storage battery inspection tour instrument by using a communication cable, and putting the operation panel into operation after parameters are adjusted;
s3, as shown in fig. 8, automatically charging and discharging the battery pack: firstly, the storage battery is withdrawn from the operation of the direct current bus, and then a charger and a discharge instrument are connected to a charging and discharging bus of the storage battery; when the No. 1 storage battery pack needs to be maintained, the No. 1 storage battery pack output switch Q102 is switched to a bus connection position, the 1 group of storage battery packs are withdrawn from a direct current bus, and meanwhile, two sections of direct current buses are connected; the output switch of the No. 1 charger is switched to the position of the storage battery, the automatic discharging module is switched to the position of the No. 1 storage battery pack, and the charger, the storage battery polling instrument and the automatic discharging module are all controlled by the centralized monitor in a starting state; the method comprises the following steps that firstly, a centralized monitor discharges a storage battery pack according to a set discharging program, a storage battery patrol inspection instrument monitors various performance indexes and states of voltage, temperature, internal resistance and the like of the storage battery in real time in the discharging process, if the voltage abnormality or the temperature abnormality of a single section of the storage battery occurs in the discharging process, the centralized monitor gives an alarm or stops discharging according to the set program, and after a fault is eliminated, the centralized monitor restarts discharging; and after the discharging is finished, the storage battery is kept stand according to a set program, and then the storage battery is charged according to a charging program until the charging and discharging work is finished.
Further, after the battery pack is operated for a long time, the individual cells fall behind and deteriorate due to an electronic drift phenomenon generated in the battery pack, thereby causing a consistency difference. The internal resistance of one or more single cells is increased to become a lagging battery; the storage battery pack has serious degradation phenomenon, so that the requirement of actual production cannot be met, the degradation failure of an individual storage battery brings about rapid failure of the whole battery set, and the like, and the storage battery pack is automatically activated on line on batteries with weak performance, so that the electric quantity of each battery is basically consistent, and the phenomena of overcharge and overdischarge of the storage battery in the charging and discharging process are avoided; the storage battery pack is always kept in the optimal running state, the running reliability of storage battery equipment is improved, the service life of the storage battery is prolonged, and the replacement cost of the storage battery is reduced; therefore, when the battery pack is activated, the connection manner is still as shown in fig. 8 in the above step S3; in the process of activating the storage battery, the discharge module fan 15 is not started due to the fact that discharge current is too small, and the requirement can be met only by natural cooling.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (8)
1. The utility model provides a battery automatic discharge device that heat dissipation channel is optimized which characterized in that: the device comprises an outer cover (33), wherein a discharge resistor (1) is arranged in the outer cover (33), and two ends of the discharge resistor (1) are connected with a left side plate (14) and a right side plate (19) of the outer cover (33); radiating fins (2) are embedded on the surface of the discharge resistor (1); a heat insulation plate (9) is connected between the left side plate (14) and the right side plate (19) to form a rectangular heat dissipation air channel; the top of the left side plate (14) and the top of the right side plate (19) are connected with an annular top plate (25), and the surface of the top plate (25) is provided with a fixing hole connected with the direct current disc cabinet.
2. The automatic discharging device of a storage battery with an optimized heat dissipation channel as claimed in claim 1, wherein: a top cover (26) is connected above the top plate (25), heat dissipation holes are formed in the side surface of the top cover (26), and a steel wire mesh (27) is connected to the surfaces of the heat dissipation holes; a plurality of shutters (28) are installed on the top of the top cover (26), and two ends of the shutters (28) are fixed through cotter pins (29).
3. The automatic discharging device of a storage battery with an optimized heat dissipation channel as claimed in claim 1, wherein: two ends of the heat insulation plate (9) are connected with the left side plate (14) and the right side plate (19) through support rods (10); the surface of one side, facing the discharge resistor (1), of the thermal insulation board (9) is connected with a radiator (4), and the surface of the radiator (4) is connected with an IGBT module (3).
4. The automatic discharging device of storage battery with optimized heat dissipation channel as claimed in claim 3, wherein: the surface of one side, back to the discharge resistor (1), of the heat insulation plate (9) is connected with a control box (8), a control board and a shunt (18) are arranged in the control box (8) and are electrically connected, a driving board and an IGBT module (3) are electrically connected, a communication board is connected to external debugging equipment, a fan control module is connected with a fan set, and a power panel is used for supplying power.
5. The automatic discharging device of storage battery with optimized heat dissipation channel as claimed in claim 3, wherein: the wiring end of the discharge resistor (1) and the current divider (18) are connected to the copper busbar.
6. The automatic discharging device of storage battery with optimized heat dissipation channel as claimed in claim 4, wherein: the fan set comprises a plurality of fans (15) connected to the bottom of the outer cover (33).
7. The automatic discharging device of a storage battery with an optimized heat dissipation channel as claimed in claim 1, wherein: the bottom of the outer cover (33) is provided with a rectangular hole; the rectangular hole is matched with a wiring terminal at the bottom of the control box (8); the terminal at the bottom of the control box (8) is connected with a direct current system centralized monitor, a direct current system storage battery polling instrument, an operation panel and a laptop for debugging.
8. The automatic discharging device of storage battery with optimized heat dissipation channel as claimed in claim 7, wherein: the bottom of the outer cover (33) is provided with a rectangular hole; an insulating plate (17) is fixed in the rectangular hole, and a positive wiring pile (34) and a negative wiring pile (35) are fixed on the insulating plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457054.2U CN215600327U (en) | 2021-06-29 | 2021-06-29 | Automatic storage battery discharging device with optimized heat dissipation channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457054.2U CN215600327U (en) | 2021-06-29 | 2021-06-29 | Automatic storage battery discharging device with optimized heat dissipation channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215600327U true CN215600327U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121457054.2U Active CN215600327U (en) | 2021-06-29 | 2021-06-29 | Automatic storage battery discharging device with optimized heat dissipation channel |
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|---|---|
| CN (1) | CN215600327U (en) |
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2021
- 2021-06-29 CN CN202121457054.2U patent/CN215600327U/en active Active
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