CN111284298A - Integrated induction type indoor unit of air conditioner for cabin - Google Patents
Integrated induction type indoor unit of air conditioner for cabin Download PDFInfo
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- CN111284298A CN111284298A CN202010230132.9A CN202010230132A CN111284298A CN 111284298 A CN111284298 A CN 111284298A CN 202010230132 A CN202010230132 A CN 202010230132A CN 111284298 A CN111284298 A CN 111284298A
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- 230000006698 induction Effects 0.000 title claims abstract description 56
- 230000003068 static effect Effects 0.000 claims abstract description 37
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000001965 increasing effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 1
- 239000000411 inducer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00414—Air-conditioning arrangements specially adapted for particular vehicles for military, emergency, safety or security vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00457—Ventilation unit, e.g. combined with a radiator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/02—Ventilation; Air-conditioning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses an integrated induction type indoor unit of an air conditioner for a cabin, which comprises an induction fan, an injection exhaust pipe, an injection chamber, a heat exchanger, an electric heater, a main air inlet, an auxiliary air inlet, an air outlet, a partition plate, a frame and the like, wherein the injection exhaust pipe is divided into 1 static pressure cavity, a plurality of nozzle pipes and nozzles, the plurality of nozzle pipes and the nozzles are uniformly distributed in a row, the outlets of the static pressure cavities are connected with the inlets of the nozzle pipes, the outlets of the nozzle pipes are connected with the nozzles, and each nozzle extends into a mixing section of the injection chamber. The partition board forms a negative pressure chamber, a normal pressure chamber and an injection chamber for the indoor unit of the air conditioner. The nozzle pipe and the nozzle of the jetting calandria are positioned in the negative pressure chamber, and the included angle formed by the nozzle pipe and the nozzle can be from 0 to 90 degrees. The invention realizes energy conservation and miniaturization by combining the induction technology and the traditional air conditioner, and provides a solution for the miniaturization, light weight and modularization of air conditioning equipment matched with a special vehicle and a cabin in the future.
Description
Technical Field
The invention relates to the field of air conditioners for vehicles and ships, in particular to an integrated induction type indoor unit of an air conditioner for a cabin.
Background
Along with the increase of environmental demands such as shelter, tank armoured vehicle and marine cabin, all kinds of novel air conditioners constantly emerge to satisfy people's development needs. At present, air conditioning in square cabin and tank armored vehicles is mainlyThe vapor compression type refrigeration principle is adopted, namely, the refrigerant is utilized to discharge heat in a condenser to be changed into liquid, and absorb heat in an evaporator to be changed into gas. When the indoor unit (side) needs to refrigerate, wind power generated by the suction type or blowing type indoor fan flows through the surface of the evaporator to realize heat exchange. In order to obtain the maximum heat exchange, the maximum air volume of the indoor fan is the heat exchange air volume of the evaporator, namely the circulating air volume marked on the product nameplate, for example, the circulating air volume of a 4kW special air conditioner is about 600m3/h～800 m3H is used as the reference value. Meanwhile, a fresh air system is matched with the automobile interior to meet the physiological requirements of passengers. In practical design, these factors are difficult to achieve due to the limited overall space size and weight.
The miniaturization, light weight and modularization of special vehicles in the future are a key point of development, and more special designs are brought, for example, indoor units of cabin air conditioners cannot be of a wall-mounted type like household air conditioners, but are more hidden behind seats or certain corners of cabins, and then small high-pressure fans are used for air circulation in the cabins. There are also compartments which are ambient temperature regulated by means of hot and cold water, i.e. the evaporator described above, where the tubes are not filled with refrigerant but with hot or cold water, but where structural design constraints are also encountered.
The induction type ventilation system is not strange, is applied to commercial air conditioner terminals, underground parking garages and train fresh air systems, and mainly utilizes an inducer to suck full fresh air or mixed partial return air (generally called primary air or primary air quantity), and sprays high-speed airflow (20-30 m/s) from a nozzle hole to generate an injection effect to induce indoor air (generally called secondary air or secondary air quantity) to be sucked, and finally the two kinds of air are mixed and sent out. At present, a large static pressure cavity is usually adopted for an inducer, and then a plurality of nozzles are directly connected with the static pressure cavity, so that the space utilization rate is not high, the flow field of an internal negative pressure chamber is not uniform enough, and the effect is poor. How to integrate the induction technology and the air conditioner indoor unit in a limited space is worth paying attention.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an extensible integrated induction type indoor unit of an air conditioner for a cabin, which has a reliable and compact structure and high wind pressure and wind volume.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an integrated induction type indoor unit of an air conditioner for a cabin is characterized in that: the device comprises a closed cavity, wherein the inside of the closed cavity is partitioned by a partition board to form an atmospheric pressure chamber, a negative pressure chamber and an injection chamber, the atmospheric pressure chamber, the negative pressure chamber and the injection chamber are distributed in the closed cavity side by side, at least one induction fan is arranged in the atmospheric pressure chamber, the side wall of the atmospheric pressure chamber is provided with an auxiliary air inlet communicated with the external environment, the air inlet end of the induction fan is communicated with the atmospheric pressure chamber, the air outlet end of the induction fan faces the negative pressure chamber, the air outlet end of the induction fan is communicated with an injection exhaust pipe, the injection exhaust pipe is composed of a static pressure chamber, a plurality of nozzle pipes and a nozzle, the static pressure chamber is integrally arranged in the atmospheric pressure chamber and is composed of a straight chamber and a reducing chamber gradually reducing, the maximum diameter end of the reducing chamber in the static pressure chamber is communicated with the straight chamber coaxially, the other end of the straight chamber in the static pressure chamber is communicated with the air outlet end, the nozzle pipes are distributed side by side, one end of each nozzle pipe is coaxially communicated with the minimum diameter end of the reducing cavity in the static pressure cavity, each nozzle pipe penetrates through a partition plate between the normal pressure cavity and the negative pressure cavity and extends into the negative pressure cavity, the nozzles are respectively reducing-diameter reducing pipes, each nozzle is arranged in the negative pressure cavity, and the maximum diameter ends of the nozzles are coaxially communicated with one end of each nozzle pipe extending into the negative pressure cavity in a one-to-one correspondence manner;
a heat exchanger is arranged in the negative pressure chamber and positioned at one side of the nozzle pipe, the heat exchanger divides the negative pressure chamber into two parts, the air outlet side of the heat exchanger faces to each nozzle pipe, a main air inlet is formed in the side wall of the negative pressure chamber corresponding to the air inlet side of the heat exchanger and communicated with the external environment of the closed cavity, and an electric heater is further arranged on the heat exchanger;
the spraying chamber is composed of a mixing section, an expanding section and an outlet section which are coaxially communicated in sequence, wherein the expanding section is a diameter-variable chamber with the diameter gradually increased, the mixing section and the outlet section are straight chambers, the diameter of the mixing section is matched with the minimum diameter of the expanding section, the diameter of the outlet section is matched with the maximum diameter of the expanding section, one end of the mixing section serving as the inlet end of the whole spraying chamber is coaxially communicated with the corresponding side of the negative pressure chamber, the minimum diameter end of each nozzle in the negative pressure chamber respectively extends into the inlet end of the spraying chamber, the axial direction of each nozzle is respectively parallel to the central axis of the spraying chamber, the other end of the mixing section is communicated with the minimum diameter end of the expanding section, one end of the outlet section is communicated with the maximum diameter end of the expanding section, and the other end of the;
in the atmospheric chamber, an induction fan introduces air from the external environment through an auxiliary air inlet, then the air is sent to a static pressure cavity of the ejection calandria through the induction fan, and then the air is sent to a mixing section of the ejection chamber through each nozzle pipe and each nozzle; meanwhile, air in the external environment enters the negative pressure chamber space on the air inlet side of the heat exchanger in the negative pressure chamber through the main air inlet, and enters the mixing section of the injection chamber from the negative pressure chamber space on the air outlet side of the heat exchanger after passing through the heat exchanger; the air from the atmospheric chamber and the negative pressure chamber is mixed in the mixing section of the jet chamber, and then passes through the expanding section and the outlet section of the jet chamber in sequence and is jetted outwards from the air outlet.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: in the nozzle calandria, the included angle range formed between the axial direction of the nozzle and the axial direction of the nozzle pipe is restricted to be 0-90 degrees, and the axial direction of the nozzle is always kept parallel to the central axis of the injection chamber, so that the included angle formed by the air outlet direction of the injection chamber relative to the axial direction of the nozzle pipe is in the range of 0-90 degrees.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: the nozzle pipe penetrates through a partition plate between the normal pressure chamber and the negative pressure chamber and extends into the negative pressure chamber, and the penetrating part is sealed so as to keep the partition between the normal pressure chamber and the negative pressure chamber.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: and when an angle exists between the nozzle pipe and the corresponding nozzle, arc transition is adopted.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: the induction fan adopts a small air volume high static pressure fan, the air volume of the induction fan is 25% -40% of the air volume passing through the main air inlet, the static pressure is usually 120 Pa-600 Pa, and the specific number is determined according to the design and the model selection.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: the partition board between the atmospheric chamber and the negative pressure chamber is integrated with the water tank, and the water tank receives the heat exchanger to collect the condensed water displaced by the heat exchanger.
The integrated induction type indoor unit of the air conditioner for the cabin is characterized in that: the closed chamber is a frame component, and the surface of the closed chamber is provided with a heat insulation material.
The invention is further illustrated as follows:
in the background technology, the circulating air volume of a 4kW special air conditioner is about 600m3/h～800 m3H is used as the reference value. When the design is traditional, the design air quantity is taken to be 800m3And h, the static pressure is 300Pa, the power supply DC24V needs a double-head fan, the power is about 380W, and the space size is about 351 multiplied by 170 multiplied by 140. By adopting the grafted induction technology, the generated induction ratio is the ratio of the air volume of the main air inlet (secondary air volume) to the air volume of the auxiliary air inlet (primary air volume), the air volume is generally designed to be between 2.5 and 4, when the induction ratio is 3, the design air volume of the induction fan only needs 200 m3/h, the static pressure is 400Pa, the power supply DC24V is adopted, only one single-head fan is needed, the power is about 90W, and the space size is about 160 multiplied by 210 multiplied by 190. The two are opposite, the power is saved by 76.3%, and the size is saved by 23.6%. At this time, the air volume flowing through the heat exchanger was 600m3And/h is more beneficial to heat exchange design.
In the conventional induction design, a large static pressure chamber is usually adopted, and the nozzle pipe is not arranged, that is, the nozzle pipe is an independent static pressure chamber, so that a large amount of space of the negative pressure chamber is occupied, and the air flow in the negative pressure chamber is influenced. By adopting the invention, the plurality of nozzle pipes are arranged in the negative pressure chamber, a large amount of space is reserved around the nozzle pipes, the air flow is more uniform, and the phenomenon of side deviation cannot be generated before the air enters the mixing section.
The invention is extensible in that: the auxiliary air inlet can directly suck air in the cabin, and can also be externally connected with an air pipe and an air valve to realize fresh air supplement; the air outlet can directly blow out air, and can also be externally connected with a local air duct to realize accurate air supply.
The invention has the beneficial effects that:
1. the invention makes full use of the combination of the induction technology and the traditional air conditioner to realize energy conservation and miniaturization.
2. The invention improves the traditional inducer, optimizes the space and realizes more efficient air outlet.
3. The invention has simple, reliable and compact structure and is easier for modular design.
4. The expandability of the invention provides more innovative designs.
Drawings
Fig. 1 is a side view of the structural principle of the present invention.
Fig. 2 is a schematic plan view of the structure of the present invention.
The reference numbers in the figures illustrate: 1-frame component, 2-auxiliary air inlet, 3-induction fan, 4-spraying calandria (4.1-static pressure cavity, 4.2-nozzle pipe, 4.3-nozzle), 5-partition board, 6-main air inlet, 7-heat exchanger, 8-electric heater, 9-air outlet, 10-spraying chamber (10.1-mixing section, 10.2-expanding section).
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in figure 1, an integrated induction type indoor unit of an air conditioner for a cabin comprises a closed cavity, wherein a normal pressure chamber A, a negative pressure chamber B and an injection chamber 10 are partitioned by a partition plate 5 in the closed cavity, the normal pressure chamber A, the negative pressure chamber B and the injection chamber 10 are distributed in the closed cavity side by side, at least one induction fan 3 is arranged in the normal pressure chamber A, an auxiliary air inlet 2 is arranged on the side wall of the bottom of the normal pressure chamber A and is communicated with the external environment, an air inlet end of the induction fan 3 is communicated with the normal pressure chamber A, an air outlet end of the induction fan 3 faces the negative pressure chamber B, an air outlet end of the induction fan 3 is communicated with an injection exhaust pipe 4, the injection exhaust pipe 4 comprises a static pressure chamber 4.1, a plurality of nozzle pipes 4.2 and nozzles 4.3, wherein the static pressure chamber 4,1 is integrally arranged in the normal pressure chamber A, the static pressure chamber 4.1 comprises a straight chamber and a reducing chamber gradually, the largest diameter end of the reducing chamber in the, the other end of the straight cavity in the static pressure cavity 4.1 is used as the inlet end of the whole static pressure cavity 4 and is communicated with the air outlet end of the induction fan 3, the nozzle pipes 4.2 are respectively straight pipes, a plurality of nozzle pipes 4.2 are distributed side by side, one end of each nozzle pipe 4.2 is coaxially communicated with the minimum diameter end of the reducing cavity in the static pressure cavity 4.1, each nozzle pipe 4.2 respectively penetrates through a partition plate between the normal pressure chamber A and the negative pressure chamber B and extends into the negative pressure chamber B, the nozzles 4.3 are respectively reducing pipes with gradually reduced diameters, each nozzle 4.3 is respectively arranged in the negative pressure chamber B, and the maximum diameter ends of each nozzle 4.3 are coaxially communicated with one end of each nozzle pipe 4.2 extending into the negative pressure chamber B in a one-to-one correspondence manner;
a heat exchanger 7 is arranged at one side of the nozzle pipe 4.2 in the negative pressure chamber B, the heat exchanger 7 divides the negative pressure chamber B into two parts, the air outlet side of the heat exchanger 7 faces to each nozzle pipe 4.2, a main air inlet 6 is arranged on the side wall of the negative pressure chamber B corresponding to the air inlet side of the heat exchanger 7 and communicated with the external environment of the closed chamber, and an electric heater 8 is also arranged on the heat exchanger 7;
the spraying chamber 10 is composed of a mixing section 10.1, an expanding section 10.2 and an outlet section which are coaxially communicated in sequence, wherein the expanding section 10.2 is a diameter-variable chamber with the diameter gradually increasing, the mixing section 10.1 and the outlet section are straight chambers, the diameter of the mixing section 10.1 is matched with the minimum diameter of the expanding section 10.2, the diameter of the outlet section is matched with the maximum diameter of the expanding section 10.2, one end of the mixing section 10.1 is used as the inlet end of the whole spraying chamber and coaxially communicated with the corresponding side of a negative pressure chamber B, the minimum diameter end of each nozzle 4.3 in the negative pressure chamber B respectively extends into the inlet end of the spraying chamber 10, the axial direction of each nozzle 4.3 is respectively parallel to the central axis of the spraying chamber 10, the other end of the mixing section 10.1 is communicated with the minimum diameter end of the expanding section 10.2, one end of the outlet section is communicated with the maximum diameter end of the expanding section 10.2, and the other end of;
in the normal pressure chamber A, an induction fan 3 introduces air from the external environment through an auxiliary air inlet 2, then the air is sent into a static pressure chamber 4.1 of a jetting calandria 4 through the induction fan 3, and then the air is sent into a mixing section 10.1 of a jetting chamber 10 through each nozzle pipe 4.2 and each nozzle 4.3; meanwhile, air in the external environment enters the space of the negative pressure chamber B at the air inlet side of the heat exchanger 7 in the negative pressure chamber B through the main air inlet 6, passes through the heat exchanger 7 and then enters the mixing section 10.1 of the injection chamber 10 from the space of the negative pressure chamber B at the air outlet side of the heat exchanger 7; the air from the atmospheric chamber A and the negative pressure chamber B is mixed in the mixing section 10.1 of the injection chamber 10, and then passes through the expanding section 10.2 and the outlet section of the injection chamber 10 in sequence and is injected from the air outlet 9.
In the invention, the range of an included angle formed between the axial direction of the nozzle 4.3 and the axial direction of the nozzle pipe 4.2 is restricted to be 0-90 degrees, and the axial direction of the nozzle 4.3 is always kept parallel to the central axis of the injection chamber 10, so that the included angle formed by the air outlet direction of the injection chamber 10 relative to the axial direction of the nozzle pipe 4.2 is in the range of 0-90 degrees.
In the invention, the nozzle pipe 4.2 penetrates through the partition plate between the normal pressure chamber A and the negative pressure chamber B and extends into the negative pressure chamber B, and the penetration part is sealed to keep the partition between the normal pressure chamber A and the negative pressure chamber B.
In the invention, when the angle exists between the nozzle pipe 4.2 and the corresponding nozzle 4.3, arc transition is adopted.
In the invention, the inducing fan 3 adopts a small air volume high static pressure fan, the air volume of the inducing fan is 25-40% of the air volume passing through the main air inlet, the static pressure is usually 120-600 Pa, and the specific number is determined according to the design and the selection.
In the present invention, the partition between the normal pressure chamber a and the negative pressure chamber B is integrated with the water tank, and the water tank receives the heat exchanger 7 to collect the condensed water displaced from the heat exchanger 7.
In the present invention, the closed chamber is formed by the inner space of the frame component 1, and the surface of the closed chamber is provided with a heat insulating material.
For further explanation: in the conventional induction design, a large static pressure cavity is usually adopted, and the nozzle pipe 4.2 is not arranged, that is, the nozzle pipe 4.2 is an independent static pressure cavity, so that a large amount of space of the negative pressure chamber is occupied, and the air flow in the negative pressure chamber is influenced. And adopt this patent for a plurality of nozzle pipe 4.2 in the negative pressure chamber, left a large amount of spaces around nozzle pipe 4.2, the air flow is more even, and the air gets into can not produce one side and incline the phenomenon before the mixing section.
The induction ratio is the ratio of the air volume V2 of the main air inlet to the air volume V1 of the auxiliary air inlet, and is generally designed to be 2.5-4. The air volume V3 of the outlet 9 is V1+ V2.
The overall height of the indoor unit of the cabin air conditioner mainly comprises the height of the induction fan 3, the size L1 of the static pressure cavity 4.1, the size L2 of the nozzle pipe 4.2 and the nozzle 4.3, and the height of the spraying chamber 10, and in order to realize compact design, the shape of the middle partition plate 5 is changed along the airflow direction, staggered design is realized, and the inlet position of the static pressure cavity 4.1 is kept equal to the height of the water tank bottom as shown in the figure.
The spraying chamber 10 can be in a rectangular hole form and corresponds to the air outlet 9 to form an integral air outlet; or a plurality of round holes, the number of which corresponds to the number of the nozzles 4.3 and the air outlets 9, so as to form a row of independent round air outlets.
The centre line of the nozzle 4.3 is on the axis of symmetry with both the mixing section 10.1 dimension L4 and the diverging section 10.2 dimension L5, and the extension of the nozzle 4.3 into the mixing section 10.1 should be greater than 0 within dimension L3.
The space C, the space D, the space E, etc. shown in the drawings can be designed into an electric control area, a connecting pipe area, a panel display area, etc. as required, but are not essential to the protection of the patent.
The auxiliary air inlet 2 can directly suck air in the cabin, and can also be externally connected with an air pipe and an air valve to realize fresh air supplement. For example, the circulating air volume of a 4kW special air conditioner is 800m3H, if the design air volume of the induced fan 3 is 200 m3H, all introducing fresh air from the outside of the vehicle, if each person presses 20m3The/h is measured, and 10 persons can be guaranteed to use the device.
The above embodiments are only preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious modifications thereof without departing from the principle of the present invention will be apparent to those skilled in the art within the spirit of the present invention and the scope of the appended claims.
Claims (7)
1. An integrated induction type indoor unit of an air conditioner for a cabin is characterized in that: the device comprises a closed cavity, wherein the inside of the closed cavity is partitioned by a partition board to form an atmospheric pressure chamber, a negative pressure chamber and an injection chamber, the atmospheric pressure chamber, the negative pressure chamber and the injection chamber are distributed in the closed cavity side by side, at least one induction fan is arranged in the atmospheric pressure chamber, the side wall of the atmospheric pressure chamber is provided with an auxiliary air inlet communicated with the external environment, the air inlet end of the induction fan is communicated with the atmospheric pressure chamber, the air outlet end of the induction fan faces the negative pressure chamber, the air outlet end of the induction fan is communicated with an injection exhaust pipe, the injection exhaust pipe is composed of a static pressure chamber, a plurality of nozzle pipes and a nozzle, the static pressure chamber is integrally arranged in the atmospheric pressure chamber and is composed of a straight chamber and a reducing chamber gradually reducing, the maximum diameter end of the reducing chamber in the static pressure chamber is communicated with the straight chamber coaxially, the other end of the straight chamber in the static pressure chamber is communicated with the air outlet end, the nozzle pipes are distributed side by side, one end of each nozzle pipe is coaxially communicated with the minimum diameter end of the reducing cavity in the static pressure cavity, each nozzle pipe penetrates through a partition plate between the normal pressure cavity and the negative pressure cavity and extends into the negative pressure cavity, the nozzles are respectively reducing-diameter reducing pipes, each nozzle is arranged in the negative pressure cavity, and the maximum diameter ends of the nozzles are coaxially communicated with one end of each nozzle pipe extending into the negative pressure cavity in a one-to-one correspondence manner;
a heat exchanger is arranged in the negative pressure chamber and positioned at one side of the nozzle pipe, the heat exchanger divides the negative pressure chamber into two parts, the air outlet side of the heat exchanger faces to each nozzle pipe, a main air inlet is formed in the side wall of the negative pressure chamber corresponding to the air inlet side of the heat exchanger and communicated with the external environment of the closed cavity, and an electric heater is further arranged on the heat exchanger;
the spraying chamber is composed of a mixing section, an expanding section and an outlet section which are coaxially communicated in sequence, wherein the expanding section is a diameter-variable chamber with the diameter gradually increased, the mixing section and the outlet section are straight chambers, the diameter of the mixing section is matched with the minimum diameter of the expanding section, the diameter of the outlet section is matched with the maximum diameter of the expanding section, one end of the mixing section serving as the inlet end of the whole spraying chamber is coaxially communicated with the corresponding side of the negative pressure chamber, the minimum diameter end of each nozzle in the negative pressure chamber respectively extends into the inlet end of the spraying chamber, the axial direction of each nozzle is respectively parallel to the central axis of the spraying chamber, the other end of the mixing section is communicated with the minimum diameter end of the expanding section, one end of the outlet section is communicated with the maximum diameter end of the expanding section, and the other end of the;
in the atmospheric chamber, an induction fan introduces air from the external environment through an auxiliary air inlet, then the air is sent to a static pressure cavity of the ejection calandria through the induction fan, and then the air is sent to a mixing section of the ejection chamber through each nozzle pipe and each nozzle; meanwhile, air in the external environment enters the negative pressure chamber space on the air inlet side of the heat exchanger in the negative pressure chamber through the main air inlet, and enters the mixing section of the injection chamber from the negative pressure chamber space on the air outlet side of the heat exchanger after passing through the heat exchanger; the air from the atmospheric chamber and the negative pressure chamber is mixed in the mixing section of the jet chamber, and then passes through the expanding section and the outlet section of the jet chamber in sequence and is jetted outwards from the air outlet.
2. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: in the nozzle calandria, the included angle range formed between the axial direction of the nozzle and the axial direction of the nozzle pipe is restricted to be 0-90 degrees, and the axial direction of the nozzle is always kept parallel to the central axis of the injection chamber, so that the included angle formed by the air outlet direction of the injection chamber relative to the axial direction of the nozzle pipe is in the range of 0-90 degrees.
3. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: the nozzle pipe penetrates through a partition plate between the normal pressure chamber and the negative pressure chamber and extends into the negative pressure chamber, and the penetrating part is sealed so as to keep the partition between the normal pressure chamber and the negative pressure chamber.
4. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: and when an angle exists between the nozzle pipe and the corresponding nozzle, arc transition is adopted.
5. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: the induction fan adopts a small air volume high static pressure fan, the air volume of the induction fan is 25% -40% of the air volume passing through the main air inlet, the static pressure is usually 120 Pa-600 Pa, and the specific number is determined according to the design and the model selection.
6. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: the partition board between the atmospheric chamber and the negative pressure chamber is integrated with the water tank, and the water tank receives the heat exchanger to collect the condensed water displaced by the heat exchanger.
7. The indoor unit of an integrated induction type cabin air conditioner according to claim 1, wherein: the closed chamber is a frame component, and the surface of the closed chamber is provided with a heat insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230132.9A CN111284298B (en) | 2020-03-27 | 2020-03-27 | Integrated inductive cabin air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230132.9A CN111284298B (en) | 2020-03-27 | 2020-03-27 | Integrated inductive cabin air conditioner indoor unit |
Publications (2)
| Publication Number | Publication Date |
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| CN111284298A true CN111284298A (en) | 2020-06-16 |
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| US20210031595A1 (en) * | 2019-07-31 | 2021-02-04 | The Boeing Company | Passenger cabin air distribution system and method of using |
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| CN111284298B (en) | 2024-05-03 |
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