CN116387693B - Vehicle-mounted battery box and control method thereof - Google Patents

Vehicle-mounted battery box and control method thereof Download PDF

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Publication number
CN116387693B
CN116387693B CN202310635957.2A CN202310635957A CN116387693B CN 116387693 B CN116387693 B CN 116387693B CN 202310635957 A CN202310635957 A CN 202310635957A CN 116387693 B CN116387693 B CN 116387693B
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China
Prior art keywords
air
heat exchange
vehicle
frame
condenser
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CN202310635957.2A
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Chinese (zh)
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CN116387693A (en
Inventor
欧阳敏
崔勇敢
朱仕伟
王东升
游力军
李冬骅
张东江
张舜
孙号楠
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Shanghai Enneagon Energy Technology Co ltd
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Shanghai Enneagon Energy Technology Co ltd
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Priority to CN202310635957.2A priority Critical patent/CN116387693B/en
Publication of CN116387693A publication Critical patent/CN116387693A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Sustainable Development (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to the technical field of power batteries of electric vehicles, in particular to a vehicle-mounted battery box and a control method thereof. The vehicle-mounted battery box includes: the battery pack comprises a first frame, a battery pack, a second frame, a temperature control device and an air injection device; the battery pack is detachably connected in the accommodating space of the first frame; the second frame is detachably connected with one end of the first frame; the peripheral side wall is arranged on the peripheral sides of the first frame and the second frame; the opposite side plates in the length direction of the peripheral side wall are respectively provided with an air inlet and an air outlet; the temperature control device is arranged in the accommodating space of the second frame; the temperature control device is communicated with the battery pack; the air injection device is arranged in the accommodating space of the second frame; the air injection device comprises a first air pipe, an air collection tank and a second air pipe; one end of the gas collection tank is connected with one end of the first gas pipe, and the other end of the gas collection tank is connected with one end of the second gas pipe; the other end of the first air pipe is connected with an air source; the other end of the second air pipe is adjacent to the air inlet side of the condenser. Thus, the problem of blockage of the heat exchange component of the temperature control device is solved.

Description

Vehicle-mounted battery box and control method thereof
Technical Field
The invention relates to the technical field of power batteries of electric vehicles, in particular to a vehicle-mounted battery box and a control method thereof.
Background
In recent years, new energy automobiles are rapidly developed, and electric vehicles which rely on storage batteries as driving energy have no harmful gas emission pollution in running and have low noise. The main problem affecting the development of electric vehicles at present is the problem of battery charging of electric vehicles, and the improvement and popularization of battery charging stations are gradually carried out in the field of new energy vehicles.
A temperature control device is generally configured in the existing battery box for controlling the temperature of the battery in the battery box. The temperature control device eventually needs to exchange heat with the external air stream (i.e., through the heat exchange components of the condenser). Because the vehicle is in a severe running environment, dust particles and other impurities are easily contained in the surrounding environment, the air inlet side of the heat exchange part is easily blocked, so that the heat exchange efficiency of the heat exchange part is reduced, and finally, the charge and discharge efficiency of the battery is low.
Disclosure of Invention
The invention provides a vehicle-mounted battery box and a control method thereof, which aim to solve the problem of blockage of a heat exchange component of a temperature control device.
In a first aspect, the present invention provides a vehicle-mounted battery box, comprising:
a first frame detachably connected with the battery pack in the accommodating space of the first frame;
the second frame is detachably connected with one end of the first frame;
a peripheral side wall provided on a peripheral side of the first frame and the second frame; the opposite side plates in the length direction of the peripheral side wall are respectively provided with an air inlet and an air outlet;
the temperature control device is arranged in the accommodating space of the second frame; the temperature control device is communicated with the battery pack; the temperature control device comprises a condenser and a heat exchange fan; the condenser is arranged in the accommodating space of the second frame and close to the air outlet; the heat exchange fan is arranged on the air outlet side of the condenser;
the air injection device is arranged in the accommodating space of the second frame; the air injection device comprises a first air pipe, an air collection tank and a second air pipe; one end of the gas collection tank is connected with one end of the first gas pipe, and the other end of the gas collection tank is connected with one end of the second gas pipe; the other end of the first air pipe is connected with an air source; the other end of the second air pipe is adjacent to the air inlet side of the condenser.
In some embodiments of the present invention, in some embodiments,
the accommodating space of the second frame is sequentially provided with a first mounting part, a second mounting part and a third mounting part along the length direction of the accommodating space; the condenser comprises a first heat exchange part and a second heat exchange part; the first heat exchange part is detachably connected with the first installation part; the second heat exchange part is detachably connected with the third installation part.
In some embodiments of the present invention, in some embodiments,
the air inlet comprises a first air inlet and a second air inlet; the first air inlet is arranged at a position corresponding to the first installation part; the second air inlet is arranged at a position corresponding to the third installation part; the air outlet comprises a first air outlet and a second air outlet; the first air outlet is arranged corresponding to the first heat exchange part; the second air outlet is arranged corresponding to the second heat exchange part.
In some embodiments of the present invention, in some embodiments,
the temperature control device also comprises a compressor; the compressor is detachably connected with the second installation part; the compressor is communicated with the first heat exchange part through a first refrigerant pipeline; the compressor is communicated with the second heat exchange part through a second refrigerant pipeline.
In some embodiments of the present invention, in some embodiments,
the tail end of the second air pipe comprises a plurality of air outlets; at least one exhaust port is arranged on the air inlet side of the first heat exchange part; at least one exhaust port is arranged on the air inlet side of the second heat exchange part.
In some embodiments of the present invention, in some embodiments,
the area of the air inlet is larger than that of the air inlet side of the condenser.
In some embodiments of the present invention, in some embodiments,
the air inlet is provided with a filter screen; the filter screen is detachably connected with the peripheral side wall.
In some embodiments of the present invention, in some embodiments,
and a back-washing fan is arranged on one side, far away from the condenser, of the heat exchange fan.
In some embodiments of the present invention, in some embodiments,
and a cleaning liquid spraying device is arranged on the air inlet side of the condenser.
The second aspect of the present invention provides a control method of a vehicle-mounted battery box, comprising:
the vehicle-mounted battery box is detachably connected with the vehicle; the air source comprises compressed air exhausted from the pneumatic brake system of the vehicle; the control method comprises the following steps:
step S11, based on the fact that a brake pedal of the vehicle is pressed, a heat exchange fan of a condenser is stopped;
step S12, based on the lifting of the brake pedal, the air injection device collects brake air flow;
and step S13, based on the stop of the condenser heat exchange fan, the air injection device sprays the collected air flow.
In some embodiments of the present invention, in some embodiments,
the vehicle-mounted battery box comprises a back-washing fan and a washing liquid spraying device; the control method further includes:
step S14, based on the air jet device jetting and collecting air flow and the vehicle stopping, the cleaning liquid spraying device jets cleaning liquid to the air inlet side of the condenser;
step S15, based on the end of the spraying of the cleaning liquid spraying device, starting the back cleaning fan until the cleaning time is over;
and step S16, starting a heat exchange fan of the condenser based on the discharge of the battery box.
In order to solve the problem of blockage of the heat exchange component of the temperature control device, the invention has the following advantages:
1. by arranging the air injection device on the air inlet side of the condenser of the temperature control device, air flow sprayed by the air injection device can be used for cleaning dirt on the surface of the air inlet side of the condenser.
2. The air injection device is provided with an air collection tank, so that air flow exhausted by the pneumatic braking device of the vehicle during braking can be collected. Thereby not only can the recycling of the exhaust air flow be achieved, but also the condensing device can be cleaned.
Drawings
FIG. 1 illustrates a schematic perspective view of an in-vehicle battery compartment of an embodiment;
FIG. 2 illustrates another perspective view of an in-vehicle battery compartment of an embodiment;
FIG. 3 illustrates a perspective view of an embodiment of a vehicle-mounted battery compartment with a peripheral sidewall removed;
FIG. 4 illustrates another perspective view of an embodiment of a vehicle-mounted battery compartment with a peripheral sidewall removed;
FIG. 5 shows a schematic diagram of an on-board battery compartment of another embodiment;
FIG. 6 illustrates a schematic diagram of an on-board battery compartment of an embodiment;
FIG. 7 is a schematic diagram showing a control method of the in-vehicle battery box of an embodiment;
fig. 8 shows a schematic diagram of a control method of the in-vehicle battery box of another embodiment.
Reference numerals:
10. a first frame;
20. a battery pack;
30. a second frame;
31. a first mounting portion;
32. a second mounting portion;
33. a third mounting portion;
40. a temperature control device;
41. a compressor;
42. a condenser;
421. a first heat exchange section;
422. a second heat exchange section;
43. a heat exchange fan;
50. an air injection device;
51. a first air tube;
52. a gas collection tank;
53. a second air pipe;
54. an exhaust port;
60. a peripheral sidewall;
61. a first side plate;
62. a second side plate;
63. a third side plate;
64. a fourth side plate;
65. an air inlet;
651. a first air inlet;
652. a second air inlet;
66. an air outlet;
661. a first air outlet;
662. a second air outlet;
70. and a cleaning liquid spraying device.
Detailed Description
The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment".
The embodiment discloses a vehicle-mounted battery box, as shown in fig. 1, fig. 2, fig. 3, fig. 5 and fig. 6, may include:
a first frame 10 detachably connected to the battery pack 20 in the receiving space of the first frame 10;
a second frame 30, the second frame 30 being detachably connected to one end of the first frame 10;
a peripheral side wall 60, the peripheral side wall 60 being provided on the peripheral side of the first frame 10 and the second frame 30; the opposite side plates in the length direction of the peripheral side wall 60 are respectively provided with an air inlet 65 and an air outlet 66;
the temperature control device 40, the temperature control device 40 is set up in the accommodation space of the second frame 30; temperature control device 40 communicates with battery pack 20; temperature control device 40 includes a condenser 42 and a heat exchange fan 43; the condenser 42 is disposed in the accommodating space of the second frame 30 near the air outlet 66; the heat exchange fan 43 is disposed on the air outlet side of the condenser 42;
the air injection device 50, the air injection device 50 is set up in the accommodation space of the second frame 30; the air injection device 50 comprises a first air pipe 51, an air collection tank 52 and a second air pipe 53; one end of the gas collection tank 52 is connected with one end of the first gas pipe 51, and the other end of the gas collection tank 52 is connected with one end of the second gas pipe 53; the other end of the first air pipe 51 is connected with an air source; the other end of the second air pipe 53 is adjacent the air intake side of the condenser 42.
In the present embodiment, the in-vehicle battery box may include: first frame 10, second frame 30, peripheral sidewall 60, temperature control device 40, and air injection device 50. One end of the first frame 10 is detachably coupled with one end of the second frame 30, thereby forming a frame structure of the battery case. This allows the battery pack 20 to be detachably coupled in the receiving space of the first frame 10. In other embodiments, the first frame 10 may be provided in a multi-layered structure according to the endurance requirements of the vehicle; one or more batteries may be removably attached to each layer. The battery pack 20 is formed by electrically connecting a plurality of batteries. When the battery box is mounted on the vehicle, the second frame 30 may be closer to the mounting position of the battery box to the vehicle than the first frame 10 and bear the weight of the first frame 10 and the battery pack 20.
Since the environment during the running of the vehicle is relatively bad, the peripheral sidewall 60 is provided at the outer side where the first frame 10 and the second frame 30 form a unitary frame structure. By providing the peripheral side wall 60, damage to the components inside the battery box by external dirt can be avoided, and damage to the electrical connection components from sunlight and rainwater can also be avoided. As shown in fig. 1 and 2, in order to facilitate heat dissipation inside the battery box, air inlets 65 and air outlets 66 may be provided at opposite side plates in the length direction of the peripheral side wall 60, respectively. By providing the air inlet 65 and the air outlet 66, the air flow can be guided into the second frame 30 and heat exchanged with the components inside it. In still other embodiments, as shown in fig. 1 and 2, the peripheral sidewall 60 may include a first side plate 61, a second side plate 62, a third side plate 63, and a fourth side plate 64. The first side plate 61, the second side plate 62, the third side plate 63, and the fourth side plate 64 may be sequentially disposed outside the overall frame, wherein the first side plate 61 may be disposed in the length direction of the second frame 30. As shown in fig. 3, the second frame 30 may be provided with a first mounting portion 31, a second mounting portion 32, and a third mounting portion 33 in order along its length direction, i.e., three mounting areas are provided. An air inlet 65 may be provided on the first side plate 61 to direct the air flow outside the battery box into the battery box for heat exchange with the temperature control device 40. As shown in fig. 1 and 2, the air inlet 65 may include a first air inlet 651 and a second air inlet 652; the first air inlet 651 may be disposed at a position corresponding to the first mounting portion 31; the second air intake 652 may be provided at a position corresponding to the third mounting portion 33. This allows air flow to be introduced from multiple locations in the battery compartment, thereby improving the efficiency of heat exchange with temperature control device 40.
Because the height space of the second frame 30 is relatively short, the temperature control device 40 can be scattered and the positions of the components can be rearranged, so that the inner space of the second frame 30 can be utilized more efficiently. The temperature control device 40 may be in communication with the battery pack 20 via a temperature control fluid conduit to control the temperature of the battery pack 20. As shown in fig. 3 and 6, temperature control device 40 may include a condenser 42 and a heat exchange fan 43; wherein, the condenser 42 may be disposed at the receiving space of the second frame 30 near the air outlet 66, and the heat exchange fan 43 may be disposed at the air outlet side of the condenser 42. This allows efficient heat exchange between the condenser 42 and the air stream by means of the external air stream and the heat exchange fan 43. In other embodiments, the condenser 42 of the temperature control device 40 for heat exchange with the external air flow may be disposed in the accommodating space of the second frame 30 near the third side plate 63. The third side plate 63 may be provided with an air outlet 66 at a position corresponding to the heat exchange fan 43, so that external air flow may enter the accommodating space of the second frame 30 from the air inlet 65, pass through the condenser 42 and be discharged from the air outlet 66, and meanwhile, the cooling fan operates to accelerate the flow of the air flow, so that penetrating air flow is formed in the narrow accommodating space of the second frame 30, and the heat exchange efficiency of the condenser 42 is improved. The temperature control device 40 controls the temperature of the battery pack 20, and when the temperature of the battery pack 20 is higher than the first temperature threshold, the temperature control device 40 can provide a low-temperature control liquid to reduce the temperature of the battery pack 20; when the temperature of the battery pack 20 is lower than the second temperature threshold, the temperature control device 40 may provide a high-temperature control liquid to increase the temperature of the battery pack 20; therefore, the battery can be charged and discharged in a certain temperature range, and the charging and discharging efficiency of the battery is improved.
The air injection device 50 may be disposed in the receiving space of the second frame 30. As shown in fig. 5, the air injection device 50 may include a first air pipe 51, an air collection tank 52, and a second air pipe 53; the gas collection tank 52 may be used for storing compressed gas, one end of the gas collection tank 52 may be connected to one end of the first gas pipe 51, and the other end of the gas collection tank 52 may be connected to one end of the second gas pipe 53; the other end of the first air pipe 51 is connected to an air source, where the air source may be compressed air generated by compressing air by the compressor 41, and may also be compressed air discharged by other parts on the vehicle (particularly, compressed air discharged by pneumatic braking during braking). The other end of the second air pipe 53 may be adjacent to the air intake side of the condenser 42, so that compressed air stored in the air collection tank 52 is conveniently concentrated and sprayed on the air intake side of the condenser 42 when discharged from the other end of the second air pipe 53, thereby achieving cleaning of the surface of the air intake side of the condenser 42. In other embodiments, to meet the control of the air injection time and the air flow rate of the air injection device 50, a control valve may be disposed on the second air pipe 53 for better cleaning the air intake side surface of the condenser 42.
In some embodiments, as shown in fig. 3 and 4, the receiving space of the second frame 30 is provided with a first mounting part 31, a second mounting part 32, and a third mounting part 33 in sequence along the length direction thereof; the condenser 42 includes a first heat exchanging portion 421 and a second heat exchanging portion 422; the first heat exchanging part 421 is detachably connected to the first mounting part 31; the second heat exchanging part 422 is detachably connected to the third mounting part 33.
In the present embodiment, as shown in fig. 3 and 4, the second frame 30 may be provided with a first mounting portion 31, a second mounting portion 32, and a third mounting portion 33 in order along its length direction, i.e., three mounting areas are provided. Since the inner space in which the second frame 30 is accommodated is scattered and scattered, the condenser 42 is provided as a whole so that it cannot be installed in the accommodation space of the second frame 30, and the condenser 42 is provided in two or more parts, so that the scattered accommodation space of the second frame 30 can be fully utilized. The condenser 42 may include two heat exchange portions, namely a first heat exchange portion 421 and a second heat exchange portion 422. By disposing the two heat exchanging portions at both ends of the second frame 30, respectively, it is possible to reduce the mutual interference of the air flows in the second frame 30, to raise the flow rate of the air flows, and to prevent the adhesion of the minute particles on the heat exchanging portions.
In some embodiments, as shown in figures 1 and 2,
the air inlet 65 includes a first air inlet 651 and a second air inlet 652; the first air inlet 651 is disposed at a position corresponding to the first mounting portion 31; the second air inlet 652 is disposed at a position corresponding to the third mounting portion 33; the air outlet 66 includes a first air outlet 661 and a second air outlet 662; the first air outlet 661 is arranged corresponding to the first heat exchanging part 421; the second air outlet 662 is provided corresponding to the second heat exchanging portion 422.
In this embodiment, as shown in fig. 1 and 2, an air inlet 65 including a first air inlet 651 and a second air inlet 652 may be provided on a first side plate in the longitudinal direction of the peripheral sidewall 60. The first air inlet 651 may be disposed at a position corresponding to the first heat exchanging part 421; the second air intake 652 may be disposed at a position corresponding to the second heat exchanging portion 422. An air outlet 66 including a first air outlet 661 and a second air outlet 662 may be provided on the other side plate (the side plate disposed opposite to the preceding side plate) in the longitudinal direction of the peripheral side wall 60. The first air outlet 661 is provided at a position corresponding to the first heat exchanging portion 421, and the second air outlet 662 is provided at a position corresponding to the second heat exchanging portion 422. Thus, the air flow inlet of the first heat exchange portion 421 is convenient to face the first air inlet 651, and the entering air flow is discharged from the first air outlet 661 after passing through the first heat exchange portion 421, so that the path of the air flow passing through the accommodating space inside the second frame 30 is shortened, dirt in the air flow is reduced to adhere to other components, the air flow speed is affected, and the heat exchange efficiency between the first heat exchange portion 421 and the air flow is further improved. The second heat exchanging part 422 operates in the same manner as the first heat exchanging part 421, and will not be described again.
In some embodiments, as shown in figures 3 and 6,
temperature control device 40 also includes a compressor 41; the compressor 41 is detachably connected to the second mounting portion 32; the compressor 41 is communicated with the first heat exchanging part 421 through a first refrigerant pipeline; the compressor 41 and the second heat exchange portion 422 communicate through a second refrigerant line.
In this embodiment, as shown in fig. 3 and 6, the temperature control device 40 may further include a compressor 41. The compressor 41 compresses the refrigerant, so that the temperature control device 40 provides temperature control liquids with different temperatures to adjust the temperature of the battery. The compressor 41 may be detachably coupled to the second mounting portion 32, i.e., disposed at a central position in the length direction of the second frame 30. This allows the compressor 41 to be located substantially at the midpoint of the line connecting the first heat exchanging portion 421 and the second heat exchanging portion 422. When the parallel connection mode of the first heat exchange portion 421 and the second heat exchange portion 422 and the compressor 41 is adopted (that is, the compressor 41 is communicated with the first heat exchange portion 421 through a first refrigerant pipeline, and the compressor 41 is communicated with the second heat exchange portion 422 through a second refrigerant pipeline), the amount of the refrigerant processed by the first heat exchange portion 421 and the second heat exchange portion 422 is equivalent, so that the heating or cooling capacity of the temperature control device 40 is improved. Meanwhile, the compressor 41 is arranged at the middle position of the second frame 30 in the length direction, so that the circulating channel of the air flow in the second frame 30 can be avoided, and the influence on the operation of the compressor 41 caused by the adhesion of dirt on the compressor 41 is reduced.
In some embodiments, as shown in figure 5,
the end of the second air tube 53 includes a plurality of air vents 54; at least one exhaust port 54 is provided on the air intake side of the first heat exchanging part 421; at least one exhaust port 54 is provided on the air intake side of the second heat exchange portion 422.
In this embodiment, as shown in fig. 5, the end of the second air pipe 53 may include a plurality of air outlets 54, so that at least one air outlet 54 may be provided at the air inlet side of each heat exchanging part. Since the area of each exhaust port 54 is limited, a plurality of exhaust ports 54 are provided at the air intake side of each heat exchanging portion, and thus the dirt at the air intake side of the heat exchanging portion can be cleaned entirely. In other embodiments, a drain may be provided on the second side plate 62 and/or the fourth side plate 64 of the peripheral side wall 60. The drain may be provided on a path along which the air flow discharged from the exhaust port 54 is sprayed toward the air intake side of the heat exchange portion and then travels. Therefore, when the dirt is cleaned, at least part of the dirt is discharged to the outside of the battery box, and secondary pollution is avoided.
In some embodiments of the present invention, in some embodiments,
the area of the air inlet 65 is greater than the area of the air inlet side of the condenser 42.
In the present embodiment, the side plate provided with the air intake port 65 may be the side of the battery box near the vehicle head when the battery box is assembled to the vehicle. The air flow generated during the running of the vehicle directly enters the accommodating space of the second frame 30 from the air inlet 65 without hindrance, and the efficiency of heat exchange of the condenser 42 can be improved by setting the area of the air inlet 65 to be larger than that of the air inlet side of the condenser 42.
In some embodiments of the present invention, in some embodiments,
the air inlet 65 is provided with a filter screen; the filter mesh is detachably connected to the peripheral side wall 60.
In this embodiment, a filter screen may be disposed at the air inlet 65, and the size of the filter screen hole may be selected based on the size of dirt particles in the environment in which the vehicle is traveling. Therefore, the large-volume dirt can be effectively blocked outside the battery box, the dirt is prevented from entering the battery box and adhering to the air inlet side of the cooler, and a certain air flow can be ensured to enter the battery box for heat exchange. The filter screen may be removably attached to the peripheral sidewall 60 to facilitate cleaning and replacement of the filter screen.
In some embodiments, as shown in FIG. 5, a backwash fan is provided on the side of the heat exchange fan 43 remote from the condenser 42.
In this embodiment, as shown in fig. 5, a back-washing blower (not shown) may be provided at a side of the heat exchange blower 43 remote from the condenser 42. The backwashing fan may be movably connected with the heat exchange fan 43. When the heat exchange fan 43 works normally, the backwashing fan can move or rotate out of the channel of the air flow discharged by the heat exchange fan 43, so that the heat exchange fan 43 can conveniently increase the speed of the heat exchange air flow, and the heat exchange efficiency is accelerated. When the heat exchange fan 43 stops working, the backwashing fan can move or rotate to a channel for discharging air flow of the heat exchange fan 43, and the backwashing fan is started to generate reverse air flow to blow out from the air inlet side of the condenser 42, so as to clean dirt on the air inlet side of the condenser 42.
In some embodiments, as shown in FIG. 6, a cleaning solution spray device 70 is provided on the air intake side of the condenser 42.
In this embodiment, as shown in fig. 6, a cleaning liquid spray device 70 may be provided on the air intake side of the condenser 42. The cleaning liquid spraying device 70 can intermittently spray the dirt cleaning liquid when the heat exchange fan 43 or the backwashing fan works, and the sprayed cleaning liquid can reduce the adhesion force of the dirt, so that the dirt can be prevented from being accumulated in a large amount.
In some embodiments, a control method of the vehicle-mounted battery box is also disclosed, as shown in fig. 7,
the vehicle-mounted battery box is detachably connected with the vehicle; the air source comprises compressed air exhausted from a pneumatic brake system of the vehicle; the control method comprises the following steps:
step S11, based on the brake pedal of the vehicle being depressed, the heat exchange fan 43 of the condenser 42 is stopped;
step S12, based on the lifting of the brake pedal, the air jet device 50 collects the brake airflow;
in step S13, the air jet device 50 jets the collected air flow based on the stop of the heat exchange fan 43 of the condenser 42.
In this embodiment, as shown in fig. 7, the vehicle-mounted battery box may be detachably connected to the vehicle for supplying power to the vehicle and for changing electricity. The first air pipe 51 of the air injection device 50 in the battery box can be detachably connected with a pipeline for discharging compressed air in the pneumatic brake system of the vehicle, so that the compressed air discharged in the pneumatic brake system of the vehicle can be collected into the air collection tank 52. The control method of the vehicle-mounted battery box may include steps S11 to S13, and each step is described in detail below:
in step S11, for large vehicles, particularly for freight vehicles, because of their large weight (including the weight of the vehicle and the weight of the cargo), a pneumatic braking method is generally used in order to provide a large braking force during braking. The air compressor 41 supplies compressed air to the brake system to generate braking force when a brake pedal of the vehicle is depressed. The heat exchange fan 43 of the condenser 42 may be stopped based on the brake pedal of the vehicle being depressed. Due to the braking process, the power supply needs to be reduced or disconnected, and the battery heat exchange requirement is reduced, so that the energy loss can be reduced by stopping the heat exchange fan 43. Since the heat exchange fan 43 is stopped, the flow velocity of the air flow passing through the air inlet side of the condenser 42 is reduced, thereby reducing the adsorption force of the dirt on the air inlet side of the condenser 42, and facilitating the cleaning of the dirt by the air flow sprayed from the air spraying device 50.
In step S12, when the brake pedal is lifted, the brake system discharges compressed air to the outside space to release the braking force. At this time, the air jet device 50 may collect the brake air flow and temporarily store it in the air collection tank 52.
In step S13, based on the condenser 42 and the heat exchange fan 43 continuing to be stopped, the air injection device 50 may inject the collected air flow to clean the dirt on the air intake side of the condenser 42. Of course, the air injection device 50 may also be configured to collect compressed air and inject air flow for cleaning the air intake side of the condenser 42. It is only preferable to spray the air in the stopped state of the heat exchange fan 43 of the condenser 42, and the cleaning effect is optimal.
In some embodiments, as shown in figure 8,
the vehicle-mounted battery box comprises a back-washing fan and a washing liquid spraying device 70; the control method further comprises the following steps:
step S14, based on the air jet device 50 jetting out the collected air flow and the vehicle stopping, the cleaning liquid spraying device 70 jets the cleaning liquid to the air inlet side of the condenser 42;
step S15, based on the end of the spraying of the cleaning liquid spraying device 70, starting the back cleaning fan until the cleaning time is over;
in step S16, the heat exchange fan 43 of the condenser 42 is started based on the battery box discharge.
In this embodiment, as shown in FIG. 8, the vehicle battery compartment may further include a backwashing fan and cleaning fluid spray assembly 70 to further clean the air intake side of the condenser 42 from contaminants. The control method of the vehicle-mounted battery box may further include steps S14 to S16, and each step is described in detail below:
in step S14, after the air jet device 50 jets the collected air flow, the cleaning liquid spray device 70 may jet the cleaning liquid to the air intake side of the condenser 42 when the vehicle is stopped. The cleaning liquid sprayed on the dirt may infiltrate into the dirt on the surface of the condenser 42, reducing adhesion of the dirt.
In step S15, based on the stop of the heat exchange fan 43 of the condenser 42 and the end of the spraying of the cleaning liquid spraying device 70, the backwashing fan may be moved or rotated to a proper position, and the generation of the air flow reverse to the heat exchange air flow is started to clean the condenser 42 until the stop after the end of the cleaning time. This allows dirt on the air intake side of the condenser 42 to be efficiently cleaned in cooperation with the cleaning liquid.
In step S16, when the battery box is in discharge operation, the heat exchange fan 43 of the condenser 42 is started, so that the temperature control of the battery is facilitated, and the discharge efficiency of the battery is improved.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementing the disclosure, and that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.

Claims (9)

1. A vehicle-mounted battery box, characterized in that the vehicle-mounted battery box comprises:
a first frame detachably connected with the battery pack in the accommodating space of the first frame;
the second frame is detachably connected with one end of the first frame;
a peripheral side wall provided on a peripheral side of the first frame and the second frame; the opposite side plates in the length direction of the peripheral side wall are respectively provided with an air inlet and an air outlet;
the temperature control device is arranged in the accommodating space of the second frame; the temperature control device is communicated with the battery pack; the temperature control device comprises a condenser and a heat exchange fan; the condenser is arranged in the accommodating space of the second frame and close to the air outlet; the heat exchange fan is arranged on the air outlet side of the condenser;
the air injection device is arranged in the accommodating space of the second frame; the air injection device comprises a first air pipe, an air collection tank and a second air pipe; one end of the gas collection tank is connected with one end of the first gas pipe, and the other end of the gas collection tank is connected with one end of the second gas pipe; the other end of the first air pipe is connected with an air source; the other end of the second air pipe is adjacent to the air inlet side of the condenser;
the accommodating space of the second frame is sequentially provided with a first mounting part, a second mounting part and a third mounting part along the length direction of the accommodating space; the condenser comprises a first heat exchange part and a second heat exchange part; the first heat exchange part is detachably connected with the first installation part; the second heat exchange part is detachably connected with the third installation part;
the tail end of the second air pipe comprises a plurality of air outlets; at least one exhaust port is arranged on the air inlet side of the first heat exchange part; at least one exhaust port is arranged on the air inlet side of the second heat exchange part;
based on the brake pedal of the vehicle being depressed, the heat exchange fan of the condenser is stopped;
based on the lifting of the brake pedal, the air injection device collects brake air flow;
based on the shutdown of the condenser heat exchange fan, the air injection device injects a collection air flow.
2. A vehicle-mounted battery box according to claim 1, wherein,
the air inlet comprises a first air inlet and a second air inlet; the first air inlet is arranged at a position corresponding to the first installation part; the second air inlet is arranged at a position corresponding to the third installation part; the air outlet comprises a first air outlet and a second air outlet; the first air outlet is arranged corresponding to the first heat exchange part; the second air outlet is arranged corresponding to the second heat exchange part.
3. A vehicle-mounted battery box according to claim 1, wherein,
the temperature control device also comprises a compressor; the compressor is detachably connected with the second installation part; the compressor is communicated with the first heat exchange part through a first refrigerant pipeline; the compressor is communicated with the second heat exchange part through a second refrigerant pipeline.
4. A vehicle-mounted battery box according to claim 1, wherein,
the area of the air inlet is larger than that of the air inlet side of the condenser.
5. A vehicle-mounted battery box according to any one of claims 1 to 4, wherein,
the air inlet is provided with a filter screen; the filter screen is detachably connected with the peripheral side wall.
6. A vehicle-mounted battery box according to claim 1, wherein,
and a back-washing fan is arranged on one side, far away from the condenser, of the heat exchange fan.
7. A vehicle-mounted battery box according to claim 1, wherein,
and a cleaning liquid spraying device is arranged on the air inlet side of the condenser.
8. A control method applied to the vehicle-mounted battery box as claimed in any one of claims 1 to 7, characterized in that,
the vehicle-mounted battery box is detachably connected with the vehicle; the air source comprises compressed air exhausted from a pneumatic brake system of the vehicle; the control method comprises the following steps:
step S11, based on the fact that a brake pedal of the vehicle is pressed, a heat exchange fan of a condenser is stopped;
step S12, based on the lifting of the brake pedal, the air injection device collects brake air flow;
and step S13, based on the stop of the condenser heat exchange fan, the air injection device sprays the collected air flow.
9. The method for controlling a vehicle-mounted battery box according to claim 8, wherein,
the vehicle-mounted battery box comprises a back-washing fan and a washing liquid spraying device; the control method further includes:
step S14, based on the air jet device jetting and collecting air flow and the vehicle stopping, the cleaning liquid spraying device jets cleaning liquid to the air inlet side of the condenser;
step S15, based on the end of the spraying of the cleaning liquid spraying device, starting the back cleaning fan until the cleaning time is over;
and step S16, starting a heat exchange fan of the condenser based on the discharge of the battery box.
CN202310635957.2A 2023-06-01 2023-06-01 Vehicle-mounted battery box and control method thereof Active CN116387693B (en)

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CN116387693B true CN116387693B (en) 2023-08-18

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488261A (en) * 1967-01-30 1970-01-06 Aqua Chem Inc Vapor compression evaporation with vent condenser and engine exhaust gas boiler
DE4015846A1 (en) * 1990-05-17 1991-11-21 R & W Finish Remmele & Wesseli Garment cleaning assembly - has sealed links between stages with filter unit connected to exhaust with vapour condenser and active carbon filter
CN101016029A (en) * 2006-02-08 2007-08-15 丰田自动车株式会社 Cooling device for vehicle
CN206141274U (en) * 2016-11-08 2017-05-03 徐小虎 Solar energy semiconductor refrigerator for car
CN107471956A (en) * 2017-07-07 2017-12-15 刘财 Vehicle intelligent purifying device for air conditioner with degassing function
CN109473891A (en) * 2018-11-30 2019-03-15 合肥民众亿兴软件开发有限公司 A kind of distribution cabinet heat radiation dehumidification system
CN217032156U (en) * 2022-03-15 2022-07-22 四平市中保换热设备有限公司 Heat exchanger with self-cleaning function
CN219042271U (en) * 2022-09-30 2023-05-16 江苏阿尔特空调实业有限责任公司 Battery thermal management device box

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488261A (en) * 1967-01-30 1970-01-06 Aqua Chem Inc Vapor compression evaporation with vent condenser and engine exhaust gas boiler
DE4015846A1 (en) * 1990-05-17 1991-11-21 R & W Finish Remmele & Wesseli Garment cleaning assembly - has sealed links between stages with filter unit connected to exhaust with vapour condenser and active carbon filter
CN101016029A (en) * 2006-02-08 2007-08-15 丰田自动车株式会社 Cooling device for vehicle
CN206141274U (en) * 2016-11-08 2017-05-03 徐小虎 Solar energy semiconductor refrigerator for car
CN107471956A (en) * 2017-07-07 2017-12-15 刘财 Vehicle intelligent purifying device for air conditioner with degassing function
CN109473891A (en) * 2018-11-30 2019-03-15 合肥民众亿兴软件开发有限公司 A kind of distribution cabinet heat radiation dehumidification system
CN217032156U (en) * 2022-03-15 2022-07-22 四平市中保换热设备有限公司 Heat exchanger with self-cleaning function
CN219042271U (en) * 2022-09-30 2023-05-16 江苏阿尔特空调实业有限责任公司 Battery thermal management device box

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