CN109204059B - Battery pack dehumidification method, dehumidification device and vehicle - Google Patents
Battery pack dehumidification method, dehumidification device and vehicle Download PDFInfo
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- CN109204059B CN109204059B CN201710521502.2A CN201710521502A CN109204059B CN 109204059 B CN109204059 B CN 109204059B CN 201710521502 A CN201710521502 A CN 201710521502A CN 109204059 B CN109204059 B CN 109204059B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/024—Moistening ; Devices influencing humidity levels, i.e. humidity control for only dehumidifying the air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Drying Of Gases (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a dehumidification method of a battery pack, which comprises the following steps: condensing air within the battery pack enclosure; collecting water condensed from the air; and discharging the condensed water when the water level of the condensed water reaches a set water level value. According to the dehumidification method provided by the invention, water vapor is condensed into water and is collected and timely discharged, so that adverse effects caused by the water vapor condensed on the connector and the connecting terminal in the battery pack can be avoided, other water vapor cannot be introduced in the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed. The invention also provides a battery pack dehumidifying device and a vehicle.
Description
Technical Field
The invention relates to a battery pack dehumidifying method, a dehumidifying device and a vehicle.
Background
The sealing and water proofing of a battery pack box body of an electric automobile is an important problem which is difficult to solve for a long time, and particularly for automobile types adopting external battery packs such as electric trucks, special vehicles and the like, the sealing and water proofing can not be kept well all the time due to the large sealing contact surface, the harsh use environment and other factors. The water vapor is condensed at the positions of a battery information collector connector, a high-voltage connecting wire and the like after invading the battery pack, so that the problems of battery sampling information transmission failure, electric leakage of a high-voltage loop to a vehicle body and the like can be caused, and the phenomena of failure in normal charging, running and the like of the vehicle can be caused.
In order to solve this problem, in addition to improving the sealing of the battery pack case, measures such as placing a moisture-proof agent in the battery pack, installing a gas circulation drying filter on the case of the battery pack, and the like are also considered. However, the desiccant has limited dehumidification effect and effective time when placed, and needs to be replaced regularly; and the cost and power consumption of installing the gas circulation drying filter on the box body of the battery pack are high.
The prior art discloses a dehumidification method in which condensed water is collected by an electric field and removed by a capillary tube, but the condensed water may have an adverse effect on a high-voltage circuit connection terminal or a connector of a battery information collector.
The prior art also discloses another dehumidification method, a dehumidification cavity is added in front of a battery compartment, and the dehumidification cavity condenses the entering air for cooling the battery, so as to remove water vapor in the air, but water vapor leaked into a battery pack box body by other ways cannot be removed, and the dehumidification cavity cannot be kept well sealed when being contacted with the outside air.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, a first object of the present invention is to provide a battery pack dehumidifying method which can effectively and reliably remove moisture from a battery pack case.
The second objective of the present invention is to provide a battery pack dehumidifying apparatus.
A third object of the invention is to propose a vehicle.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a battery pack dehumidification method, including the following steps: condensing air within the battery pack enclosure; collecting water condensed from the air; detecting a water level of the condensed water; and discharging the condensed water when the water level of the condensed water reaches a set water level value.
According to the dehumidification method provided by the invention, water vapor is condensed into water and is collected and timely discharged, so that adverse effects caused by the water vapor condensed on the connector and the connecting terminal in the battery pack can be avoided, other water vapor cannot be introduced in the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed.
According to some embodiments of the invention, the dehumidification method further comprises: and detecting the water level of the accumulated water outside the battery pack box body, wherein when the water level of the accumulated water outside the battery pack box body is greater than the water level of the condensed water, the condensed water is not discharged.
According to some embodiments of the invention, the battery pack further comprises a refrigerator and a condensing plate, and the dehumidification method further comprises: cooling the condensing plate by the refrigerator.
According to some embodiments of the invention, a cooling temperature of the refrigerator is detected; and adjusting the refrigerating power of the refrigerator according to the refrigerating temperature, increasing the refrigerating power of the refrigerator when the refrigerating temperature is higher than a set temperature value, and reducing the refrigerating power of the refrigerator when the refrigerating temperature is lower than the set temperature value.
According to some embodiments of the present invention, the refrigerator is controlled to stop cooling when a water level of the condensed water exceeds a pre-warning water level value.
In order to achieve the above object, a second embodiment of the present invention provides a dehumidification apparatus, including: a condensation plate for condensing air within the battery pack case; a water collection tank for collecting water condensed from the air; a second sensor for detecting a water level of the condensed water; a controller for controlling the condensed water to be discharged when a water level of the condensed water reaches a set water level value.
According to the dehumidifying device disclosed by the invention, water vapor is condensed into water and is collected and timely discharged, so that the adverse effect caused by the water vapor condensed on the connector and the connecting terminal in the battery pack can be avoided, other water vapor cannot be introduced in the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed.
According to some embodiments of the invention, the dehumidification device further comprises a first sensor for detecting a level of water accumulated outside the battery pack case; the controller is also used for controlling the condensed water not to be discharged when the water level of the water accumulated outside the battery pack box is higher than the water level of the condensed water.
According to some embodiments of the invention, the dehumidification device further comprises a refrigerator, the refrigerator being attached to the condensation plate, the refrigerator being configured to cool the condensation plate.
According to some embodiments of the present invention, a temperature sensor is disposed on a surface of the condensation plate, which is in contact with the refrigerator, the temperature sensor is configured to detect a refrigeration temperature of the refrigerator, the controller is further configured to adjust a refrigeration power of the refrigerator according to the refrigeration temperature, and when the refrigeration temperature is higher than a set temperature value, the refrigeration power of the refrigerator is controlled to be increased, and when the refrigeration temperature is lower than the set temperature value, the refrigeration power of the refrigerator is controlled to be decreased.
According to some embodiments of the invention, the controller is further configured to control the refrigerator to stop cooling when the level of the condensed water exceeds a pre-warning level value.
According to some embodiments of the present invention, the dehumidifying apparatus further includes a drain pipe connected to a bottom of the water collecting tank and penetrating through the battery pack case, the drain pipe for draining the condensed water out of the battery pack case.
According to some embodiments of the invention, the drain pipe is provided with a drain valve for controlling opening and closing of the drain pipe.
According to some embodiments of the invention, the condensation plate is mounted within the battery pack case.
According to some embodiments of the invention, the water collection tank is mounted within the battery pack case and is located below the condensation plate, and a vertically downward projected area of the condensation plate is entirely located within the water collection tank.
According to some embodiments of the invention, the condensation plate is provided with a plurality of channels, and edges of both sides of the channels are provided with downward tips.
In order to achieve the above object, a vehicle according to a third embodiment of the present invention includes the above battery pack dehumidifying apparatus.
According to the vehicle provided by the invention, the vehicle is provided with the battery pack dehumidifying device, and the dehumidifying device ensures that the working environment of the battery pack is normal, so that the battery pack provides sufficient power for the vehicle, and the vehicle can run stably and powerfully.
Drawings
FIG. 1 is a schematic diagram of a battery pack dehumidification method of the present invention;
FIG. 2 is a schematic diagram of one embodiment of a battery pack dehumidification method of the present invention;
FIG. 3 is a schematic structural diagram of a battery pack dehumidifying apparatus according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a battery pack dehumidifying apparatus according to the present invention;
fig. 5 is an exploded view of the structure of one embodiment of a dehumidifying apparatus for battery packs according to the present invention;
FIG. 6 is a schematic connection diagram of one embodiment of a battery pack dehumidification device of the present invention;
fig. 7 is a schematic structural view of a condensation plate of an embodiment of a battery pack dehumidifying apparatus according to the present invention;
FIG. 8 is a schematic view of a vehicle of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, an embodiment of the first aspect of the present invention provides a battery pack dehumidification method, including the following steps: condensing air in the battery pack box; collecting water condensed from air; detecting the level of the condensed water; and when the water level of the condensed water reaches a set water level value, discharging the condensed water.
According to the dehumidification method provided by the invention, water vapor is condensed into water and is collected and timely discharged, so that adverse effects caused by the water vapor condensed on the connector and the connecting terminal in the battery pack can be avoided, other water vapor cannot be introduced in the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed.
The battery pack dehumidification method is used for dehumidifying water vapor in the battery pack box, air entering the battery pack is used for cooling the battery pack, and the temperature of the air is raised after the air cools the battery pack, so that the water vapor in the air cannot be retained in the battery pack.
Specifically, as shown in fig. 2, the level of the condensed water is detected, the level of the condensed water may be compared with a set level value, and whether the condensed water is discharged or not may be controlled according to the result of the comparison. Discharging the condensed water when the water level of the condensed water reaches a set water level value; when the water level of the condensed water does not reach the set water level value, the condensed water is not discharged. The set water level value may be determined according to the capacity of the sump of the battery pack.
Preferably, as shown in fig. 2, the dehumidifying method further includes: and detecting the water level of the accumulated water outside the battery pack box body, wherein when the water level of the accumulated water outside the battery pack box body is greater than the water level of the condensed water, the condensed water is not discharged. When the water level of the accumulated water outside the battery pack box body is higher than the water level of the condensed water, the condensed water discharged at the moment can make the accumulated water outside the battery pack box body invade the battery pack box body, and adverse effects are generated on the battery pack. When the water level of the water accumulated at the outer side of the battery pack box is less than or equal to the water level of the condensed water, the condensed water can be normally discharged.
Specifically, as shown in fig. 2, the battery pack further includes a refrigerator and a condensing plate, and the dehumidifying method further includes: the condensing plate is cooled by a refrigerator. The refrigerator refrigerates the condensing plate to cool the condensing plate, so that the condensing plate can condense air in the battery pack box.
Preferably, as shown in fig. 2, the refrigerating temperature of the refrigerator is detected; and adjusting the refrigerating power of the refrigerator according to the refrigerating temperature, increasing the refrigerating power of the refrigerator when the refrigerating temperature is higher than the set temperature value, and reducing the refrigerating power of the refrigerator when the refrigerating temperature is lower than the set temperature value. The refrigerating temperature of the refrigerator means a temperature reached by the refrigerator to cool the condensing plate. When the refrigerating temperature reaches the set temperature value, the condensing plate can condense air into water. When the refrigerating temperature is higher than the set temperature value, the condensing plate can not condense the air into water, so that the refrigerating power of the refrigerator is increased, and the refrigerating temperature is reduced to the set temperature value; when the refrigerating temperature is lower than the set temperature value, the condensing plate can not condense the air into water, so that the refrigerating power of the refrigerator is reduced, and the refrigerating temperature is increased to the set temperature value.
Preferably, when the water level of the condensed water exceeds the early warning water level value, the refrigerator is controlled to stop refrigerating. According to some embodiments of the invention, when the water level of the condensed water exceeds the early warning water level value, the condensed water cannot be discharged, and the battery pack is adversely affected by continuous refrigeration and dehumidification, so that the refrigerator is controlled to stop refrigeration.
The dehumidification method of the present invention is described in detail below with reference to the embodiment of fig. 2.
S01: detecting the refrigerating temperature of the refrigerator, and entering S02;
s02: adjusting the refrigerating power of the refrigerator according to the refrigerating temperature, increasing the refrigerating power of the refrigerator when the refrigerating temperature is higher than a set temperature value, and reducing the refrigerating power of the refrigerator when the refrigerating temperature is lower than the set temperature value, and entering S03;
s03: cooling the condensation plate by a refrigerator, and proceeding to S04;
s04: condensing the air in the battery pack box body, and entering S05;
s05: collecting water condensed from air, and entering S06;
s06: detecting the level of the condensed water, and proceeding to S07;
s07: judging whether the condensed water level is greater than a set water level value, if not, entering S08; if so, go to S09;
s08: the condensed water is not discharged;
s09: detecting the water level of accumulated water outside the battery pack box body, and entering S10;
s10: judging whether the water level of the condensed water is higher than the water level of the accumulated water outside the battery pack box body, if not, entering S11; if so, go to S12;
s11: the condensed water is not discharged;
s12: the condensed water is discharged and recycled to S01.
Since the detection of the water level of the accumulated water outside the battery pack case is performed in real time, the sequence of step S09 is not limited to the embodiment of fig. 2. Steps S01 to S02 may be the first step of the dehumidification method of the present invention, or may be after S12.
According to the dehumidification method provided by the embodiment of the invention, the refrigeration power of the refrigerator is accurately adjusted, and then the refrigeration temperature of the refrigerator is accurately adjusted, so that water vapor is condensed into water and is collected and discharged in time, not only can adverse effects caused by the water vapor condensed on the connector assembly and the high-voltage connecting terminal in the battery pack be avoided, but also other water vapor can not be introduced under the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed.
As shown in fig. 3 and 4, an embodiment of the second aspect of the present invention provides a battery pack dehumidifying apparatus, including: the condensation plate 1 is used for condensing air in the battery pack box body; the water collecting tank 2 is used for collecting water condensed from air; a second sensor 5, the second sensor 5 being for detecting a level of the condensed water; and a controller 3, the controller 3 being used for controlling the condensed water to be discharged when the water level of the condensed water reaches a set water level value.
It can be understood that the dehumidifying apparatus of the present invention is located in the battery pack case to dehumidify the air in the battery pack case, the air introduced into the battery pack is used to cool the battery pack, and the air cools the battery pack, then heats up, and is then condensed by the condensing plate 1.
According to the dehumidifying device provided by the invention, the condensation plate 1 condenses water vapor into water, the water collecting tank 2 collects the condensed water, and the controller 3 controls the condensed water to be discharged in time, so that not only can adverse effects caused by the condensation of the water vapor on the connector and the connecting terminal in the battery pack be avoided, but also other water vapor can not be introduced under the sealed environment of the battery pack box body, and the water vapor in the battery pack box body can be effectively and reliably removed.
Specifically, as shown in fig. 4 and 6, the second sensor 5 transmits a signal for detecting the level of the condensed water to the controller 3, and the controller 3 controls the condensed water to be discharged when the level of the condensed water reaches a set water level value, and the controller 3 controls the condensed water not to be discharged when the level of the condensed water does not reach the set water level value. The set water level value may be determined according to the capacity of the sump 2 of the battery pack. Furthermore, according to some embodiments of the invention, the second sensor 5 is mounted in the drain pipe 7.
Preferably, as shown in fig. 4 and 6, the dehumidifying apparatus further comprises a first sensor 10, wherein the first sensor 10 is used for detecting the water level of accumulated water outside the battery pack case 9; the controller 3 is also used for controlling the condensed water not to be discharged when the water level of the accumulated water outside the battery pack box body 9 is higher than the water level of the condensed water. When the water level of the water accumulated outside the battery pack box body 9 is higher than the water level of the condensed water, the water accumulated outside the battery pack box body 9 can invade the battery pack box body by discharging the condensed water, and the battery pack is adversely affected. When the water level of the water accumulated outside the battery pack box 9 is less than or equal to the water level of the condensed water, the condensed water can be normally discharged. Furthermore, according to some embodiments of the present invention, the first sensor 10 is located at the bottom outside the battery pack case 9.
Preferably, as shown in fig. 4, the dehumidifying apparatus further includes a refrigerator 4, the refrigerator 4 being attached to the condensing panel 1, the refrigerator 4 being for cooling the condensing panel 1. The one side that refrigerator 4 can cool off condensing panel 1 is the refrigeration face, and condensing panel heat conductivility is good, and the refrigeration face and the laminating of condensing panel 1 of refrigerator 4 can make condensing panel 1 fully cool off.
Specifically, as shown in fig. 5, the refrigerator 4 includes a radiator 41 for radiating heat of the refrigerator 4 itself and a refrigerating member 42 for refrigerating. The refrigerating member 42 may be a semiconductor refrigerating sheet, and the upper surface of the refrigerating surface condensing plate with at least 1 semiconductor refrigerating sheet on the condensing plate 1 is closely attached. The surface of the cooling element 42 emitting heat is a heating surface, and the heating surface of the cooling element 42 is attached to a heat sink 41 (a radiator or a heat sink) having a corresponding heat exchange power, so as to absorb and dissipate heat emitted by the cooling element 42 during cooling. The power supply of the semiconductor refrigeration piece is adjustable, and the controller controls the power supply of the semiconductor refrigeration piece to adjust the refrigeration power of the refrigerator 42 according to the temperature (set temperature value) to be kept by the condensation plate 1. In addition, the refrigerator 4 may also be a heat exchanger connected to an air-conditioning cooling pipeline, and when the heat exchanger is used as a cooling component, a flow regulating valve needs to be installed in a connecting branch of the heat exchanger and the air-conditioning cooling pipeline, and the controller adjusts the cooling power of the heat exchanger according to the temperature (set temperature value) to be maintained by the condensation plate 1.
Further, as shown in fig. 4, a temperature sensor 6 is disposed on a surface of the condensation plate 1, which is attached to the refrigerator 4, the temperature sensor 6 is configured to detect a refrigeration temperature of the refrigerator 4, the controller 3 is further configured to adjust a refrigeration power of the refrigerator 4 according to the refrigeration temperature, and when the refrigeration temperature is higher than a set temperature value, the refrigeration power of the refrigerator 4 is controlled to be increased, and when the refrigeration temperature is lower than the set temperature value, the refrigeration power of the refrigerator 4 is controlled to be decreased. The refrigerating temperature of the refrigerator 4 refers to the temperature reached by the refrigerator 4 for cooling the condensation plate 1. When the refrigerating temperature reaches the set temperature value, the condensing plate 1 can condense air into water. When the refrigerating temperature is higher than the set temperature value, the condensing plate can not condense the air into water, so that the refrigerating power of the refrigerator 4 is increased, and the refrigerating temperature is reduced to the set temperature value; when the refrigerating temperature is lower than the set temperature value, the condensing plate 1 can not condense the air into water, so that the refrigerating power of the refrigerator 4 is reduced, and the refrigerating temperature is increased to the set temperature value.
Preferably, the controller 3 is further configured to control the refrigerator 4 to stop refrigerating when the level of the condensed water exceeds the pre-warning level value. According to some embodiments of the present invention, when the water level of the condensed water exceeds the pre-warning water level value, the condensed water cannot be discharged, and the battery pack is adversely affected by the continuous cooling and dehumidification, so that the controller 3 controls the refrigerator 4 to stop cooling.
Specifically, as shown in fig. 3, 4 and 5, the condensation plate 1 is mounted inside the battery pack case. As shown in fig. 3 and 4, the condensation plate 1 is mounted on a side surface facing the battery pack case 9, and the mounting position of the condensation plate 1 is not limited to this embodiment as long as air in the battery pack case 9 can be condensed.
The controller 3 may be mounted inside the battery pack case 9 or may be mounted outside the battery pack case 9.
Preferably, as shown in fig. 3, 4 and 5, the water collection tank 2 is installed in the battery pack case 9 and is located below the condensation plate 1, and the vertically downward projected area of the condensation plate 1 is entirely located in the water collection tank 2. The water collecting tank 2 is arranged below the condensing plate 1, no other shielding object is arranged between the water collecting tank 2 and the condensing plate 1, and the vertical downward projection area of the condensing plate 1 is completely positioned in the coverage range of the water collecting tank 2, so that the water collecting tank 2 is favorable for collecting condensed water.
Preferably, as shown in fig. 7, the condensation plate 1 is provided with a plurality of guide grooves 11, and edges of both sides of the guide grooves 11 are provided with downward tips 12. According to some embodiments of the present invention, the condensation plate 1 is a cube with a diamond-shaped cross section, one surface of the condensation plate 1, which is attached to the refrigerator 4, is provided with a plurality of guiding grooves 11, edges of two sides of the guiding grooves 11 are provided with downward pointed ends 12, and the pointed ends 12 facilitate the condensed water to flow along the guiding grooves 11 to the water collecting tank 2. The shape of the condensation plate 1 is not limited to the present embodiment as long as it facilitates the collection of the condensed water by the water collection tank 2.
Specifically, as shown in fig. 4 and 5, the dehumidifying apparatus further includes a drain pipe 7, the drain pipe 7 being connected to the bottom of the water collecting sump 2 and passing through the battery pack case 9, the drain pipe 7 being for draining the condensed water out of the battery pack case 9. The drain pipe 7 is connected with the bottom of the water collecting tank 2, which is beneficial to draining.
Preferably, the bottom surface of the water collection sump 2 has a certain inclination angle. The bottom surface of the water collecting tank 2 has a certain inclination angle, which is beneficial for the water collecting tank 2 to drain towards the water outlet of the drain pipe.
Further, as shown in fig. 4 and 5, the drain pipe 7 is provided with a drain valve 8, and the drain valve 8 is used to control the opening and closing of the drain pipe 7. The controller 3 controls the drain pipe 7 to drain water through the drain valve 8, and when the water level of the condensed water reaches a set water level value, namely the water needs to be drained, the controller 3 controls the drain valve 8 to be opened, so that the drain pipe 7 is controlled to be opened to drain water; when the water level of the water accumulated outside the battery pack box body 9 is higher than the water level of the condensed water or the water level of the condensed water does not reach the set water level value, namely, the water does not need to be drained, the controller 3 controls the drain valve 8 to be closed, and therefore the drain pipe 7 is controlled to be closed and not to drain the water. In addition, according to some embodiments of the invention, the drain valve 8 is arranged at the drain port of the drain pipe 7 in the battery pack box 9, and the sealing performance is good.
A dehumidifying apparatus according to an embodiment of the present invention will be described with reference to fig. 3 to 6.
The binding face with refrigerator 4 on condensing panel 1 is equipped with temperature sensor 6, and temperature sensor 6 detects the refrigeration temperature of refrigerator 4 to signal transmission with refrigeration temperature gives controller 3, and controller 3 adjusts the refrigeration power of refrigerator 4 (including the start-up and the stop of refrigerator 4) according to refrigeration temperature, and when refrigeration temperature was higher than the settlement temperature value, increase refrigeration, 4 refrigeration power, when refrigeration temperature was less than the settlement temperature value, reduced the refrigeration power of refrigerator 4.
According to some embodiments of the present invention, the battery pack case 9 is further provided with a humidity sensor, the humidity sensor transmits a humidity signal of the battery pack case 9 to the controller 3, and if the humidity of the battery pack case reaches a set humidity, the dehumidifying device is started. If the humidity of the battery pack box body does not reach the set humidity value, the dehumidifying device is closed,
the second sensor 5 detects the water level of the condensed water and transmits a water level signal of the condensed water to the controller 3, the controller 3 controls whether to discharge water according to the water level of the condensed water, and when the water level of the condensed water reaches a set water level value, the controller controls the drain valve 8 to open the water pipe 7 to discharge the condensed water; and when the water level of the condensed water does not reach the set water level value, controlling the drain valve 8 to close the drain pipe 7 and not drain the water.
Particularly, the first sensor 10 detects the water level of the water accumulated outside the battery pack case 9, transmits a signal of the water level of the water accumulated outside the battery pack case 9 to the controller 3, and controls the condensed water not to be discharged regardless of whether the water level of the condensed water reaches a set water level value or not when the water level of the water accumulated outside the battery pack case 9 is higher than the water level of the condensed water; when the water level of the water accumulated outside the battery pack box body 9 is less than or equal to the water level of the condensed water, the dehumidification device is controlled to work normally.
According to the dehumidification device provided by the invention, the condensation plate 1 condenses water vapor into water, the water collection tank 2 collects the condensed water, and the controller 3 controls the condensed water to be discharged in time, so that adverse effects caused by the condensation of the water vapor on a low-voltage connector and a high-voltage connecting terminal in a battery pack can be avoided, interference on a battery pack and a battery information collector can be avoided, other water vapor cannot be introduced in the sealed environment of the battery pack box, and the water vapor in the battery pack box can be effectively and reliably removed.
As shown in fig. 8, an embodiment of the second aspect of the present invention proposes a vehicle 1000 including a battery pack dehumidifying apparatus 100, the battery pack dehumidifying apparatus 100 having all the technical features of the dehumidifying apparatus of the present invention.
According to the vehicle 1000 of the invention, the condensation plate 1 of the dehumidifying device 100 condenses water vapor into water, the water collecting tank 2 collects the condensed water, and the controller 3 controls the condensed water to be discharged in time, so that the dehumidifying device 100 can not only prevent the water vapor from condensing on connectors and connecting terminals in the battery pack, but also can effectively and reliably remove the water vapor in the battery pack box 9 without introducing other water vapor in the sealed environment of the battery pack box 9, thereby ensuring the normal working environment of the battery pack, providing sufficient power for the vehicle 1000 by the battery pack, and enabling the vehicle 1000 to stably run.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A battery pack dehumidification method is characterized by comprising the following steps:
air in the battery pack box is condensed through a condensing plate, a plurality of diversion trenches are formed in the condensing plate, pointed ends are arranged on two sides of each diversion trench, and the condensing plate is cooled through a refrigerator;
collecting water condensed from the air through a water collecting tank, wherein the water collecting tank is positioned below the diversion trench;
detecting the water level of the condensed water and detecting the water level of accumulated water outside the battery pack box body;
when the water level of the water accumulated outside the battery pack box body is higher than the water level of the condensed water, the condensed water is not discharged;
when the water level of the water accumulated outside the battery pack box body is less than or equal to the water level of the condensed water, comparing the water level of the condensed water with a set water level value, discharging the condensed water to the outer side of the battery pack box body when the water level of the condensed water reaches the set water level value, and not discharging the condensed water when the water level of the condensed water does not reach the set water level value;
and when the water level of the condensed water exceeds the early warning water level value, controlling the refrigerator to stop refrigerating.
2. A dehumidifying method as claimed in claim 1, wherein a refrigerating temperature of said refrigerator is detected; and adjusting the refrigerating power of the refrigerator according to the refrigerating temperature, increasing the refrigerating power of the refrigerator when the refrigerating temperature is higher than a set temperature value, and reducing the refrigerating power of the refrigerator when the refrigerating temperature is lower than the set temperature value.
3. A battery pack dehumidifying device, comprising:
the condensation plate is used for condensing air in the battery pack box body, a plurality of diversion trenches are formed in the condensation plate, and tips are arranged on two sides of each diversion trench;
the refrigerator is attached to the condensation plate and used for cooling the condensation plate;
the water collecting tank is used for collecting water condensed from the air and is positioned below the diversion trench;
a second sensor for detecting a water level of the condensed water;
the first sensor is used for detecting the water level of accumulated water outside the battery pack box body;
the controller is used for preventing the condensed water from being discharged when the water level of the accumulated water outside the battery pack box body is higher than the water level of the condensed water;
when the water level of the water accumulated outside the battery pack box body is less than or equal to the water level of the condensed water, comparing the water level of the condensed water with a set water level value, discharging the condensed water to the outer side of the battery pack box body when the water level of the condensed water reaches the set water level value, and not discharging the condensed water when the water level of the condensed water does not reach the set water level value;
and when the water level of the condensed water exceeds the early warning water level value, controlling the refrigerator to stop refrigerating.
4. The dehumidifying device as claimed in claim 3, wherein a temperature sensor is disposed on a surface of the condensation plate, which is in contact with the refrigerator, the temperature sensor is configured to detect a cooling temperature of the refrigerator, the controller is further configured to adjust a cooling power of the refrigerator according to the cooling temperature, and when the cooling temperature is higher than a set temperature value, the controller is configured to control to increase the cooling power of the refrigerator, and when the cooling temperature is lower than the set temperature value, the controller is configured to control to decrease the cooling power of the refrigerator.
5. A dehumidifying device as claimed in claim 3 further comprising a drain pipe connected to a bottom of the water collecting tank and passing through the battery pack case, the drain pipe being for draining the condensed water out of the battery pack case.
6. A dehumidifying device as claimed in claim 5 wherein the drain pipe is provided with a drain valve for controlling opening and closing of the drain pipe.
7. A dehumidifying device as claimed in claim 3 wherein the condensing plate is mounted in the battery pack case.
8. A dehumidifying device as claimed in claim 3 wherein said water collection sump is mounted in said battery pack case and is located below said condensation plate, and a vertically downward projected area of said condensation plate is entirely located in said water collection sump.
9. A vehicle characterized by comprising the battery pack dehumidifying apparatus according to any one of claims 3 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521502.2A CN109204059B (en) | 2017-06-30 | 2017-06-30 | Battery pack dehumidification method, dehumidification device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710521502.2A CN109204059B (en) | 2017-06-30 | 2017-06-30 | Battery pack dehumidification method, dehumidification device and vehicle |
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| CN109204059A CN109204059A (en) | 2019-01-15 |
| CN109204059B true CN109204059B (en) | 2021-05-14 |
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| CN112993427A (en) * | 2021-01-13 | 2021-06-18 | 山东中科先进技术研究院有限公司 | Dehumidification device and method for battery system |
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| CN109204059A (en) | 2019-01-15 |
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