CN112701374A - Direct current directly drives container battery group temperature regulation system - Google Patents
Direct current directly drives container battery group temperature regulation system Download PDFInfo
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- CN112701374A CN112701374A CN202011479601.7A CN202011479601A CN112701374A CN 112701374 A CN112701374 A CN 112701374A CN 202011479601 A CN202011479601 A CN 202011479601A CN 112701374 A CN112701374 A CN 112701374A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a direct-current direct-drive container battery pack temperature adjusting system which comprises a heat exchange unit arranged on the outer wall of a container, an air outlet arranged on the upper side of the inner wall of the container and an air return inlet arranged on the lower side of the inner wall of the container, wherein the heat exchange unit is arranged on the outer wall of the container; the heat exchange unit comprises a heat exchange loop, and a heat pump type compressor, a first heat exchanger, a drying filter, a filter, an electronic expansion valve and a second heat exchanger which are sequentially arranged on the heat exchange loop, wherein a four-way reversing valve is arranged on the heat exchange loop, an air outlet is communicated with the heat exchange unit, an air return inlet is communicated with the heat exchange unit, the air outlet and the air return inlet are arranged at the same side position, air in the container is blown into the heat exchange unit by the air return inlet, and is cooled to the air outlet through refrigeration of the heat exchange unit, the cooled air and hot air in the container alternately form circulation from top to bottom, air valves are arranged at the upper positions of the front end and the rear end of. The invention has the following advantages: the air circulation in the container is realized rapidly, and the uniformity of temperature distribution is ensured.
Description
The technical field is as follows:
the invention belongs to the field of new energy containers, and particularly relates to a temperature adjusting system for a direct-current direct-drive container battery pack.
Background art:
along with the rapid development of new energy industry, container battery group is applied to a plurality of fields such as energy storage in a large number, power station dilatation, power station peak power consumption regulation, electric ship power, removal emergency power. Since it is generally exposed to the outside, the temperature and humidity inside it are greatly affected by the outside. It is known that the discharge characteristics and the temperature and humidity of batteries, especially lithium batteries, are very relevant. The optimal working environment temperature of the lithium battery is 25-28 ℃, the temperature is too high, and in addition, a large amount of heat is released during the charging and discharging of the battery pack, the discharging efficiency of the battery is influenced, and meanwhile, potential safety hazards exist; if the temperature is too low, the discharge activity of the battery is reduced, the discharge amount is greatly reduced, and the starting is difficult. Therefore, in order to ensure that the container battery pack can always operate safely and efficiently, a set of temperature regulating system is generally required to be equipped for the container battery pack, so that the battery pack can work safely and efficiently under any condition.
The prior container temperature regulating system has the following defects:
1: an alternating current power supply temperature adjusting device is adopted. The battery pack of the container stores direct current, so the direct current needs to be converted into alternating current firstly and then supplied to an alternating current temperature regulating system for use. There is a loss of electrical energy due to the conversion in the form of current; meanwhile, the efficiency of the alternating-current temperature adjusting device is not high and is only about 60% at most, so that the whole operation process of the temperature adjusting system consumes more electric quantity of the battery pack, and the cruising ability of the container battery pack is influenced.
2: the inside formula air supply mode that directly blows that adopts of container mostly because the inside battery space occupancy of container is very high, and the formula wind direction that directly blows is blockked very easily, causes the inside temperature of container inhomogeneous to influence the normal work of container battery, especially under the comparatively extreme condition of temperature, can't realize refrigeration or heating fast, the homogeneity of the great spatial position of container can't guarantee the temperature.
3: heating usually adopts an electric heating mode. At present, a common air conditioner compressor is adopted in a traditional container battery pack temperature regulating system, the heating effect is poor, and especially when the outdoor temperature is lower than 0 ℃, the heating is almost completely realized by electric heating. It is known that the heating effect of the electric heating is 1:1 best, so the heating efficiency is low. Also, a large amount of electricity is consumed, thereby affecting the endurance of the container battery.
The invention content is as follows:
the invention aims to overcome the defects and provide a direct-current direct-drive container battery pack temperature regulating system, wherein a voltage platform of the system is consistent with that of a container battery pack, so that direct-current direct supply is realized, and high-efficiency power supply without conversion is not needed; the system adopts the air-supplementing enthalpy-increasing heat pump direct-current variable frequency compressor, normal and efficient heating of the system in a low-temperature state can be guaranteed, and the highest heating efficiency is improved to 1:4 by utilizing an air source heat pump heating technology, so that the consumption of the electric quantity of the battery is greatly reduced, and the endurance mileage of the container battery pack is improved; in addition, an air duct type air duct air supply mode is adopted in the container, the fan adopts a forward and reverse rotating direct current brushless motor, and intelligent switching of an air outlet and an air return port in a refrigeration mode and a heating mode can be easily realized, so that air circulation in the container can be quickly realized, and the uniformity of temperature distribution is ensured.
The purpose of the invention is realized by the following technical scheme: a direct-current direct-drive container battery pack temperature adjusting system is characterized in that an energy storage battery is electrically connected with the temperature adjusting system in a direct-current direct-supply mode and comprises a heat exchange unit arranged on the outer wall of a container, an air outlet arranged on the upper side of the inner wall of the container and an air return opening arranged on the lower side of the inner wall of the container; the heat exchange unit comprises a heat exchange loop, and a heat pump type compressor, a first heat exchanger, a drying filter, a filter, an electronic expansion valve and a second heat exchanger which are sequentially arranged on the heat exchange loop, wherein the first heat exchanger and the second heat exchanger both adopt forward and reverse rotation direct current brushless motors, a four-way reversing valve is arranged on the heat exchange loop, an air outlet is communicated with the heat exchange unit, a return air inlet is communicated with the heat exchange unit, the air outlet and the return air inlet are arranged at the same side position, gas in the container is blown into the heat exchange unit from the return air inlet and cooled to the air outlet through refrigeration of the heat exchange unit, the cooled air and hot gas in the container alternately form circulation up and down, air valves are arranged at the upper positions of the front end and the rear;
when the gas in the container is refrigerated, the heat pump type compressor compresses the refrigerant gas to become high-temperature high-pressure superheated steam, the high-temperature high-pressure superheated steam passes through the four-way reversing valve and enters the first heat exchanger, the high-temperature high-pressure superheated steam is heated and liquefied in the first heat exchanger to become low-temperature high-pressure refrigerant liquid, the low-temperature high-pressure refrigerant liquid passes through the drying filter and the filter and then is reduced in pressure along with the throttling of the electronic expansion valve to become low-temperature low-pressure refrigerant liquid, the low-temperature low-pressure refrigerant liquid absorbs heat in the second heat exchanger and is vaporized to become refrigerant gas, the refrigerant gas is recycled in the heat pump type compressor to realize refrigeration cycle, the gas around the second heat exchanger is cooled and blows cold air into the container along with the fan in the second heat exchanger, the forward and reverse rotation brushless direct current motor in the second heat, the cold air moves from high to low and sinks by the gravity of the cold air to enable the hot air to float upwards and form convection with the hot air in the container;
when gas in the container is heated, the heat pump type compressor compresses low-temperature low-pressure refrigerant gas into high-temperature high-pressure superheated steam, the high-temperature high-pressure superheated steam flows into the second heat exchanger through the four-way reversing valve, the high-temperature high-pressure superheated steam is heated and liquefied in the second heat exchanger and becomes low-temperature high-pressure refrigerant liquid, the gas around the first heat exchanger becomes hot, the hot gas is blown into the container along with a fan in the first heat exchanger, at the moment, a forward and reverse direct current brushless motor in the first heat exchanger reverses, the hot gas is blown out from a return air inlet below, the cold gas is sucked in from an air outlet above, the hot gas floats upwards from below due to the fact that the density of the hot gas is smaller than that of the cold gas, and the cold gas floats downwards.
The invention is further improved in that: the four-way reversing valve comprises an A end, a B end, a C end and a D end, when the container is refrigerated, the A end is communicated with the D end, the B end is communicated with the C end, and the heat pump type compressor is communicated with the first heat exchanger through the A end and the D end; when the container is heated, the end A is communicated with the end B, the end C is communicated with the end D, and the heat pump type compressor is communicated with the second heat exchanger through the end A and the end B.
The invention is further improved in that: the air outlet comprises a plurality of air-out tuber pipes, and a plurality of air-out tuber pipes levels connect gradually, and the air-out tuber pipe is connected with the air-out tuber pipe through first air hose, second air hose and heat transfer unit, and the air-out tuber pipe communicates with first air hose, second air hose, heat transfer unit, and the side of air-out tuber pipe has the exhaust vent.
The invention is further improved in that: the first connecting air pipe is arranged between the heat exchange unit and the second connecting air pipe, the height of a connector of the first connecting air pipe and the heat exchange unit is larger than that of the connector of the first connecting air pipe and the second connecting air pipe, and the width of the connector of the second connecting air pipe and the first connecting air pipe is larger than that of the connector of the second connecting air pipe and the air outlet air pipe.
The invention is further improved in that: the width of the air outlet pipes is gradually decreased from one end close to the heat exchange unit to the other end.
The invention is further improved in that: the return air inlet comprises an L-shaped connecting air pipe communicated with the heat exchange unit and a plurality of return air pipes arranged at the lower end of the L-shaped connecting air pipe, the heat exchange unit is communicated with the plurality of return air pipes through the L-shaped connecting air pipe, return air holes are formed in the return air pipes, and the width of the plurality of return air pipes is gradually decreased progressively from one end close to the heat exchange unit to the other end.
The invention is further improved in that: between two adjacent air-out tuber pipes, all connect through the connection group block between two adjacent return air tuber pipes.
The invention is further improved in that: the connecting set comprises a connecting clamping frame, one side wall of the connecting clamping frame is connected with one side wall of the air outlet pipe or the air return pipe in a clamping manner, and the other side of the connecting clamping frame is connected with the other side wall of the air outlet pipe or the air return pipe in a clamping manner; the both sides wall of joint card frame all has the U type groove that the opening set up outwards, the bottom in U type groove has U type blotter, two inside walls in U type groove all have the protruding muscle of arc form, the opening of the protruding muscle of two arc forms sets up dorsad, the interior lateral wall of air-out tuber pipe or return air tuber pipe border position all has a plurality of fixture blocks, a plurality of fixture blocks extend along the extending direction of air-out tuber pipe or return air tuber pipe, the U type inslot that corresponds is gone into to the side card that works as air-out tuber pipe or return air tuber pipe, a plurality of fixture blocks mutually support with the protruding muscle of arc form that corresponds, the edge card of air-out tuber pipe or return air tuber pipe.
Compared with the prior art, the invention has the following advantages:
1. the invention installs the air outlet above one side wall of the container, installs the return air inlet below one side wall of the container, the cold air sinks from the air outlet above during refrigeration, part of the hot air flows in through the return air inlet, the other part of the hot air floats from bottom to top, the cold air and the hot air realize rapid convection, while during heating, the hot air is blown out from the return air inlet below, the cold air is sucked from the air outlet above, because the density of the hot air is less than that of the cold air, the hot air floats from bottom to top, the cold air floats from self gravity, thereby realizing the convection of the hot air and the cold area in the container, the inside of the container adopts the air duct air supply mode of air duct type, the fan adopts the brushless direct current motor which can be rotated forward and backward, thereby the intelligent switching between the air outlet and the return air inlet under the refrigeration mode and the heating mode can be easily realized, thereby, the temperature regulation mode accelerates the temperature regulation and stabilization in the container, and simultaneously ensures that the temperature distribution in the container is uniform, thereby realizing high efficiency and energy conservation.
2. The direct current direct supply mode is adopted between the temperature adjusting system and the energy storage battery, namely, direct current of the lithium battery pack is directly supplied for temperature adjustment without conversion, and main equipment of the system also adopts direct current brushless equipment, so that the efficiency is higher.
3. The traditional container temperature regulating system adopts an air conditioner compressor, the heating adopts an electric heating mode for heating, the heating efficiency is not high, and when the ambient temperature is lower than-5 ℃, the temperature regulating system basically cannot work and only can be heated by electricity, but the heat pump type compressor is adopted in the application, the heat pump type compressor has the functions of air supplement and enthalpy increase, the highest heating efficiency is improved to 1:4 by utilizing the air source heat pump heating technology, so that the consumption of the electric quantity of a battery is greatly reduced, and the endurance mileage of a container battery pack is improved.
4. The air outlet adopts the great first connecting air pipe of bore and width to be connected with heat transfer unit, guarantees gaseous spun flow and wind speed in the heat transfer unit, for gaseous quick flow provides great space, avoids gaseous gathering at the junction of first connecting air pipe and heat transfer unit and makes the junction between them take place to warp the damage.
5. The width of a plurality of air-out tuber pipes is progressively dwindled to the other end by the one end that is close to heat transfer unit, because gaseous progressively discharges from the air outlet department nearby, and gas flow progressively reduces along with the distance of air-out tuber pipe, can suitably reduce the volume of air-out tuber pipe, reduction in production cost, and the design of the return air tuber pipe of the same reason also can reduction in production cost.
6. All realize detachable the connection through the linkage between the two adjacent air-out tuber pipes and between the two adjacent return air tuber pipes, when connecting firmly, be convenient for realize installation and later maintenance, reduce on-the-spot assembly working strength.
Description of the drawings:
fig. 1 is an external schematic view of a dc direct drive container battery pack temperature regulation system of the present invention.
FIG. 2 is a schematic view showing the connection of the heat exchange unit, the air outlet and the air return inlet in FIG. 1.
Fig. 3 is a schematic structural diagram of the heat exchange unit in fig. 1 during refrigeration.
Fig. 4 is a schematic structural diagram of the heat exchange unit in fig. 1 during heating.
Fig. 5 is a top view of the outlet of fig. 1.
Fig. 6 is a connection and disassembly diagram of two adjacent air outlet pipes in fig. 1.
Reference numbers in the figures:
1-container, 2-heat exchange unit, 3-air outlet, 4-air return inlet, 5-air valve, 6-connection group;
21-heat exchange loop, 22-heat pump type compressor, 23-first heat exchanger, 24-drying filter, 25-filter, 26-electronic expansion valve, 27-second heat exchanger and 28-four-way reversing valve;
281-A end, 282-B end, 283-C end and 284-D end;
31-air outlet pipe, 32-first connecting air pipe, 33-second connecting air pipe and 34-air outlet hole;
the air return device comprises a 41-L-shaped connecting air pipe, a 42-return air pipe and a 43-return air hole;
61-connecting clamping frame, 62-U-shaped groove, 63-U-shaped buffer cushion, 64-arc-shaped convex rib and 65-clamping block.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship, such as one based on the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit indicated must have a specific orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.
As shown in fig. 1 and fig. 2, an embodiment of a temperature adjusting system of a direct-current direct-drive container battery pack according to the present invention is shown, in which an energy storage battery is electrically connected to the temperature adjusting system in a direct-current direct-supply manner, and includes a heat exchange unit 2 disposed on an outer wall of a container 1, an air outlet 3 disposed on an upper side of an inner wall of the container 1, and an air return opening 4 disposed on a lower side of the inner wall of the container 1; the heat exchange unit 2 comprises a heat exchange loop 21, a heat pump type compressor 22, a first heat exchanger 23, a drying filter 24, a filter 25, an electronic expansion valve 26 and a second heat exchanger 27 which are sequentially arranged on the heat exchange loop 21, wherein the first heat exchanger 23 and the second heat exchanger 27 are both forward and reverse direct current brushless motors, a four-way reversing valve 28 is arranged on the heat exchange loop 21, an air outlet 3 is communicated with the heat exchange unit 2, an air return inlet 4 is communicated with the heat exchange unit 2, the air outlet 3 and the air return inlet 4 are arranged at the same side position, air in the container 1 is blown into the heat exchange unit 2 from the air return inlet 4 and is blown out to the air outlet 3 through refrigeration of the heat exchange unit 2, the air and hot air in the container 1 alternately form circulation up and down, air valves 5 are arranged at the upper positions of the front end and the rear end of the container;
as shown in fig. 3, when the gas in the container 1 is refrigerated, the heat pump type compressor 22 compresses the refrigerant gas to high-temperature high-pressure superheated steam, which passes through the four-way reversing valve 28 to the first heat exchanger 23, the high-temperature high-pressure superheated steam is heated and liquefied in the first heat exchanger 23 to become low-temperature high-pressure refrigerant liquid, the low-temperature high-pressure refrigerant liquid passes through the drying filter 24 and the filter 25 and then is reduced in pressure by the throttling of the electronic expansion valve 26 to become low-temperature low-pressure refrigerant liquid, the low-temperature low-pressure refrigerant liquid absorbs heat in the second heat exchanger 27 and is vaporized to become refrigerant gas, which is recycled to the heat pump type compressor 22 to realize the refrigeration cycle, the gas around the second heat exchanger 27 is cooled and blows the cold air into the container 1 along with the fan in the second heat exchanger 27, the forward rotation and reverse rotation direct current motor in the second heat exchanger 27, the hot air at the lower part of the container 1 is sucked by the air return port 4, the cold air moves from high to low and sinks by the gravity of the cold air to enable the hot air to float upwards, and convection with the hot air is formed in the container 1;
as shown in fig. 4, when the gas in the container 1 is heated, the heat pump type compressor 22 compresses the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure superheated steam, which passes through the four-way reversing valve 28 to the second heat exchanger 27, so that the high-temperature and high-pressure superheated steam is heated and liquefied in the second heat exchanger 27 to become low-temperature and high-pressure refrigerant liquid, so that the gas around the first heat exchanger 23 becomes hot, and the hot gas is blown into the container 1 along with the fan in the first heat exchanger 23, at this time, the forward and reverse direct current brushless motor in the first heat exchanger 23 is reversed, the hot gas is blown out from the air return opening 4 below, the cold gas is sucked in from the air outlet 3 above, and as the density of the hot gas is less than that of the cold gas, the hot gas floats up from below, and the cold gas.
Further, the four-way reversing valve 28 comprises an a end 281, a B end 282, a C end 283 and a D end 284, when the container 1 is refrigerated, the a end 281 is communicated with the D end 284, the B end 282 is communicated with the C end 283, so that the heat pump type compressor 22 is communicated with the first heat exchanger 23 through the a end 281 and the D end 284; when the container 1 is heated, the a side 281 and the B side 282 communicate with each other, and the C side 283 and the D side 284 communicate with each other, so that the heat pump type compressor 22 communicates with the second heat exchanger 27 through the a side 281 and the B side 282.
In this application, after heat exchange unit 2 reached the inside settlement temperature of container 1, heat pump type compressor 22 stop work, and the ventilation blower in the container 1 still continues to keep the ventilation function, makes the inside air of container 1 be in the circulation state to reach the inside temperature homogeneity of container 1, guarantee the accuracy of detection temperature.
Further, as shown in fig. 5, the air outlet 3 is composed of a plurality of air outlet pipes 31, the plurality of air outlet pipes 31 are horizontally connected in sequence, the air outlet pipes 31 are connected with the heat exchange unit 2 through the first connecting air pipes 32 and the second connecting air pipes 33, the air outlet pipes 31 are communicated with the first connecting air pipes 32, the second connecting air pipes 33 and the heat exchange unit 2, and the side surfaces of the air outlet pipes 31 are provided with air outlets 34.
The invention installs the air outlet 3 above one side wall of the container 1, install the return air inlet 4 below one side wall of the container 1, the air conditioning sinks from the air outlet 3 above during the refrigeration, a part of hot gas flows in through the return air inlet 4, another part of hot gas floats from bottom to top, the air conditioning and hot gas realize the rapid convection, and during the heating, the hot gas is blown out from the return air inlet 4 below, the air conditioning is sucked from the air outlet 3 above, because the density of hot gas is less than the density of air conditioning, the hot gas floats from bottom, the air conditioning floats particularly from its own gravity, the convection between the hot gas and the cold area in the container 1 is realized, the inside of the container 1 adopts the air duct type, the blower adopts the direct current brushless motor of positive and negative rotation, the intelligent switching between the air outlet 3 and the return air inlet 4 under the refrigeration mode and the heating mode can be easily realized, thereby the air circulation in, the uniformity of temperature distribution is guaranteed, the temperature regulation and the stability in the container 1 are accelerated by the temperature regulation mode, the uniform temperature distribution in the container 1 is guaranteed, and high efficiency and energy conservation are realized.
The direct current direct supply mode is adopted between the temperature adjusting system and the energy storage battery, namely, direct current of the lithium battery pack is directly supplied for temperature adjustment without conversion, and main equipment of the system also adopts direct current brushless equipment, so that the efficiency is higher.
The traditional container temperature regulating system adopts an air conditioner compressor, the heating adopts an electric heating mode to heat, the heating efficiency is not high, and when the ambient temperature is lower than-5 ℃, the temperature regulating system basically cannot work and only can be heated by electricity, but the heat pump type compressor is adopted in the application, the heat pump type compressor has the functions of air supplement and enthalpy increase, the outdoor temperature can reach-25 ℃ at the lowest, the normal heating can be realized, the efficiency is high, and the electricity is more saved.
Further, the first connecting air duct 32 is disposed between the heat exchanging unit 2 and the second connecting air duct 33, the height of the connector between the first connecting air duct 32 and the heat exchanging unit 2 is greater than the height of the connector between the first connecting air duct 32 and the second connecting air duct 33, and the width of the connector between the second connecting air duct 33 and the first connecting air duct 32 is greater than the width of the connector between the second connecting air duct 33 and the air outlet duct 31.
The air outlet 3 is connected with the heat exchange unit 2 through the first connecting air pipe 32 with a large caliber and a large width, so that the flow and the air speed of air sprayed out of the heat exchange unit are guaranteed, a large space is provided for quick flow of the air, and the phenomenon that the air is gathered at the joint of the first connecting air pipe 32 and the heat exchange unit 2 to cause the joint of the first connecting air pipe 32 and the heat exchange unit 2 to deform and damage is avoided.
Further, the width of the air outlet pipes 31 gradually decreases from one end close to the heat exchange unit 2 to the other end.
Further, the return air inlet 4 includes the L type connecting air pipe 41 that communicates with heat transfer unit 2 and arranges a plurality of return air tuber pipes 42 of L type connecting air pipe 41 lower extreme in, and heat transfer unit 2 has return air hole 43 through L type connecting air pipe 41 and a plurality of return air tuber pipes 42 intercommunication on the return air tuber pipe 42, and the width of a plurality of return air tuber pipes 42 is progressively reduced to the other end by the one end that is close to heat transfer unit 2.
Further, between two adjacent air-out tuber pipes 31, all connect through 6 block connections of connection group between two adjacent return air tuber pipes 42.
In this application, the width of a plurality of air-out tuber pipes 31 is progressively dwindled to the other end by the one end that is close to heat transfer unit 2, because gaseous progressively discharges from tuber hole 34 nearby, and gas flow progressively reduces along with the distance of air-out tuber pipe 31, can suitably reduce the volume of air-out tuber pipe 31, reduction in production cost, and the design of reason return air tuber pipe 42 also can reduction in production cost.
Further, as shown in fig. 6, the connection set 6 includes a connection clamping frame 61, one side wall of the connection clamping frame 61 is connected with one side wall of the air outlet duct 31 or the return air duct 42 in a clamping manner, and the other side of the connection clamping frame 61 is connected with the other side wall of the air outlet duct 31 or the return air duct 42 in a clamping manner.
Further, the both sides wall of connecting card frame 61 all has the U type groove 62 that the opening set up outwards, U type groove 62's bottom has U type blotter 63, two inside walls of U type groove 62 all have the protruding muscle 64 of arc form, the opening of two protruding muscle 64 of arc form sets up dorsad, the interior outer wall of air-out tuber pipe 31 or return air tuber pipe 42 border position all has a plurality of fixture blocks 65, a plurality of fixture blocks 65 extend along the extending direction of air-out tuber pipe 31 or return air tuber pipe 42, go into corresponding U type groove 62 when the side card of air-out tuber pipe 31 or return air tuber pipe 42, a plurality of fixture blocks 65 and the protruding muscle 64 of arc form that corresponds mutually support, go into in the corresponding U type blotter 63 in the edge card of air-out tuber pipe 31 or return air tuber pipe 42.
Fig. 4 only shows a schematic connection diagram between two adjacent air outlet pipes 31, and the connection group 6 adopting the same principle when other structures are connected can change the size of the connection position as required. During the installation, with a side joint of the connection card frame 61 of the connection group 6 and a side joint of one air outlet duct 31, with another side joint of the connection card frame 61 of the connection group 6 and a side joint of another air outlet duct 31, realize firm connection with two adjacent air outlet ducts 31 through the setting of the connection group 6.
Wherein, the side card of air-out tuber pipe 31 advances corresponding U type inslot 62, fixture block 65 on the air-out tuber pipe 31 and the protruding muscle 64 of arc form that corresponds in the U type inslot 62 extrusion fit each other, form the block state, simultaneously the edge card of air-out tuber pipe 31 advances in the U type blotter 63 that corresponds, improve contact friction, guarantee to connect firmly, under the great condition of gas flow, it is not hard up to avoid the junction to take place to drop, all realize detachable the connection through linkage 6 between two adjacent air-out tuber pipes 31 and between two adjacent return air tuber pipes 42, when connecting firmly, be convenient for realize installation and later maintenance, reduce on-the-spot assembly work intensity.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a direct current directly drives container group battery temperature regulation system which characterized in that: the energy storage battery is electrically connected with the temperature adjusting system in a direct current direct supply mode, and the temperature adjusting system comprises a heat exchange unit arranged on the outer wall of the container, an air outlet arranged on the upper side of the inner wall of the container and an air return opening arranged on the lower side of the inner wall of the container; the heat exchange unit comprises a heat exchange loop, and a heat pump type compressor, a first heat exchanger, a drying filter, a filter, an electronic expansion valve and a second heat exchanger which are sequentially arranged on the heat exchange loop, wherein the first heat exchanger and the second heat exchanger both adopt forward and reverse direct current brushless motors, a four-way reversing valve is arranged on the heat exchange loop, an air outlet is communicated with the heat exchange unit, an air return inlet is communicated with the heat exchange unit, the air outlet and the air return inlet are arranged at the same side position, gas in the container is blown into the heat exchange unit from the air return inlet and is blown out to the air outlet through refrigeration of the heat exchange unit, the cold air and hot gas in the container alternately form circulation up and down, air valves are arranged at the upper positions of the front end and the rear end of the container, and the air valves;
when the gas in the container is refrigerated, the heat pump type compressor compresses the refrigerant gas to become high-temperature high-pressure superheated steam, the high-temperature high-pressure superheated steam passes through the four-way reversing valve and enters the first heat exchanger, the high-temperature high-pressure superheated steam is heated and liquefied in the first heat exchanger to become low-temperature high-pressure refrigerant liquid, the low-temperature high-pressure refrigerant liquid passes through the drying filter and the filter and then is reduced in pressure along with the throttling of the electronic expansion valve to become low-temperature low-pressure refrigerant liquid, the low-temperature low-pressure refrigerant liquid absorbs heat in the second heat exchanger and is vaporized to become refrigerant gas, the refrigerant gas is recycled in the heat pump type compressor to realize refrigeration cycle, the gas around the second heat exchanger is cooled and blows cold air into the container along with the fan in the second heat exchanger, the forward and reverse rotation brushless direct current motor in the second heat, the cold air moves from high to low and sinks by the gravity of the cold air to enable the hot air to float upwards and form convection with the hot air in the container;
when gas in the container is heated, the heat pump type compressor compresses low-temperature low-pressure refrigerant gas into high-temperature high-pressure superheated steam, the high-temperature high-pressure superheated steam flows into the second heat exchanger through the four-way reversing valve, the high-temperature high-pressure superheated steam is heated and liquefied in the second heat exchanger and becomes low-temperature high-pressure refrigerant liquid, the gas around the first heat exchanger becomes hot, the hot gas is blown into the container along with a fan in the first heat exchanger, at the moment, a forward and reverse direct current brushless motor in the first heat exchanger reverses, the hot gas is blown out from a return air inlet below, the cold gas is sucked in from an air outlet above, the hot gas floats upwards from below due to the fact that the density of the hot gas is smaller than that of the cold gas, and the cold gas floats downwards.
2. The system of claim 1, wherein the system comprises: the four-way reversing valve comprises an A end, a B end, a C end and a D end, when the container is refrigerated, the A end is communicated with the D end, the B end is communicated with the C end, and the heat pump type compressor is communicated with the first heat exchanger through the A end and the D end; when the container is internally heated, the end A is communicated with the end B, the end C is communicated with the end D, and the heat pump type compressor is communicated with the second heat exchanger through the end A and the end B.
3. A dc direct drive container battery pack temperature regulation system as claimed in claim 1 or 2, wherein: the air outlet comprises a plurality of air-out tuber pipes, a plurality of air-out tuber pipe levels connect gradually, the air-out tuber pipe is connected with the air-out tuber pipe through first air hose, second air hose and refrigerator, the air-out tuber pipe communicates with first air hose, second air hose, refrigerator, the side of air-out tuber pipe has the exhaust vent.
4. The system of claim 3, wherein the system comprises: the first connecting air pipe is arranged between the refrigerator and the second connecting air pipe, the height of a connector between the first connecting air pipe and the refrigerator is larger than that of the connector between the first connecting air pipe and the second connecting air pipe, and the width of the connector between the second connecting air pipe and the first connecting air pipe is larger than that of the connector between the second connecting air pipe and the air outlet air pipe.
5. The system of claim 4, wherein the system comprises: the width of the air outlet pipes is gradually reduced from one end close to the refrigerator to the other end.
6. The system for regulating the temperature of a direct current direct drive container battery pack according to any one of claims 1 to 5, wherein: the air return inlet comprises an L-shaped connecting air pipe communicated with the refrigerator and a plurality of air return air pipes arranged at the lower end of the L-shaped connecting air pipe, the refrigerator is communicated with the air return air pipes through the L-shaped connecting air pipe, air return holes are formed in the air return air pipes, and the width of each air return air pipe is gradually decreased from one end close to the refrigerator to the other end.
7. The system for regulating the temperature of a direct current direct drive container battery pack according to any one of claims 1 to 5, wherein: and the two adjacent air outlet air pipes and the two adjacent air return air pipes are connected through the connection set in a clamping manner.
8. The system of claim 7, wherein the system comprises: the connecting set comprises a connecting clamping frame, one side wall of the connecting clamping frame is connected with one side wall of the air outlet pipe or the air return pipe in a clamping manner, and the other side of the connecting clamping frame is connected with the other side wall of the air outlet pipe or the air return pipe in a clamping manner;
the both sides wall of joint card frame all has the U type groove that the opening set up outwards, the bottom in U type groove has U type blotter, two inside walls in U type groove all have the protruding muscle of arc form, the opening of the protruding muscle of two arc forms sets up dorsad, the interior outer wall of air-out tuber pipe or return air tuber pipe border position all has a plurality of fixture blocks, a plurality of fixture blocks extend along the extending direction of air-out tuber pipe or return air tuber pipe, and the U type inslot that corresponds is gone into to the side card that works as air-out tuber pipe or return air tuber pipe, a plurality of fixture blocks mutually support with the protruding muscle of arc form that corresponds, the edge card of air-out tuber pipe or return air tuber pipe is gone into in the U type.
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