CN111284298B - Integrated inductive cabin air conditioner indoor unit - Google Patents
Integrated inductive cabin air conditioner indoor unit Download PDFInfo
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- CN111284298B CN111284298B CN202010230132.9A CN202010230132A CN111284298B CN 111284298 B CN111284298 B CN 111284298B CN 202010230132 A CN202010230132 A CN 202010230132A CN 111284298 B CN111284298 B CN 111284298B
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- 230000001939 inductive effect Effects 0.000 title description 2
- 230000006698 induction Effects 0.000 claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 230000003068 static effect Effects 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000004378 air conditioning Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 239000000411 inducer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects 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
- 230000001143 conditioned effect Effects 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
- 239000000047 product Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses an integrated induction type cabin air conditioner indoor unit which comprises an induction fan, an injection calandria, 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 forming piece and the like, wherein the injection calandria is divided into 1 static pressure cavity, a plurality of nozzle pipes and nozzles, the nozzle pipes and the nozzles are uniformly distributed in a row, the outlet of the static pressure cavity is connected with the inlet of each nozzle pipe, the outlet of each nozzle pipe is connected with a nozzle, and each nozzle extends into a mixing section of the injection chamber. The partition board forms the air conditioner indoor unit into a negative pressure chamber, a normal pressure chamber and an injection chamber. The nozzle pipe and the nozzle of the jet calandria are positioned in the negative pressure chamber, and the included angle formed by the nozzle pipe and the nozzle can be from 0 degree 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 miniaturization, light weight and modularization of air conditioning equipment matched with special vehicles and cabins 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 cabin air conditioner indoor unit.
Background
Along with the increase of environmental demands such as tank armored vehicles and marine cabins, various novel air conditioners are continuously emerging to meet the development needs of people. At present, air conditioning in tank armored vehicles mainly adopts a vapor compression refrigeration principle, namely, heat is released by refrigerant in a condenser to be changed into liquid, and the heat is absorbed in an evaporator to be changed into gas. When the indoor unit (side) needs to refrigerate, the wind power generated by the air suction type or blowing type indoor fan is utilized to flow through the surface of the evaporator to realize heat exchange. In order to obtain maximum heat exchange, the maximum air volume of an indoor fan is usually the heat exchange air volume of an evaporator, namely the circulation air volume marked on a product nameplate, for example, the circulation air volume of a 4kW special air conditioner is about 600m 3/h～800 m3/h. Meanwhile, a fresh air system is also required to be matched in the vehicle so as to meet the physiological needs of passengers. In practical design, these factors are difficult to achieve due to limited overall space size and weight.
In the future, miniaturization, light weight and modularization of special vehicles are important development, and more special designs are brought about, for example, cabin air conditioning indoor units cannot be certainly hung like household air conditioners, more are hidden behind seats or at certain corners of cabins, and then a small high-pressure fan is used for circulating air in the cabins. Still other cabins are conditioned by using cold and hot water, i.e. the evaporator described above, and the inside of the tube is not a flowing refrigerant, but cold or hot water, but also limited in structural design.
The induction type ventilation system is not unfamiliar, is applied to the tail end of commercial air conditioners, underground parking garages and train fresh air systems, mainly utilizes an inducer to suck full fresh air or mixed partial return air (commonly called primary air or primary air quantity), ejects high-speed air flow (20 m/s-30 m/s) from a nozzle hole to generate injection effect, induces indoor air (commonly called secondary air or secondary air quantity) to be sucked, and finally mixes the two types of air and sends the mixed air. At present, the inducer usually adopts a large static pressure cavity, and then a plurality of nozzles are directly connected with the static pressure cavity, so that the space utilization rate is low, the flow field of the internal negative pressure chamber is also not uniform enough, and the effect is poor. How to integrate the induction technology and the indoor unit of the air conditioner in a limited space is worth focusing.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an extensible integrated induction type cabin air conditioner indoor unit which is reliable and compact in structure and high in wind pressure and wind quantity.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
An integrated induction type cabin air conditioner indoor unit which is characterized in that: the device comprises a closed cavity, wherein the inside of the closed cavity is partitioned by a partition plate into a normal pressure chamber, a negative pressure chamber and an injection chamber, the normal 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 normal pressure chamber, the side wall of the normal pressure chamber is provided with an auxiliary air inlet and is communicated with the external environment, the air inlet end of the induction fan is communicated with the normal 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 calandria, the injection calandria consists of a static pressure chamber, a plurality of nozzle pipes and nozzles, the static pressure chamber is integrally arranged in the normal pressure chamber, the static pressure chamber consists of a straight chamber and a gradually reduced diameter variable diameter chamber, the maximum end of the static pressure chamber is coaxially communicated with one end of the straight chamber, the other end of the straight chamber is used as the inlet end of the whole static pressure chamber and is coaxially communicated with the air outlet end of the induction fan, one end of each nozzle pipe is parallelly distributed, each nozzle pipe penetrates through the partition plate between the normal pressure chamber and the negative pressure chamber respectively, the diameter of each nozzle pipe is gradually reduced to the diameter of the negative pressure chamber, and the nozzle pipe is coaxially communicated with the maximum diameter variable diameter of each nozzle pipe;
a heat exchanger is arranged at one side of the nozzle pipe in the negative pressure chamber, the heat exchanger divides the negative pressure chamber into two parts, the air outlet side of the heat exchanger faces each nozzle pipe, the side wall of the negative pressure chamber corresponding to the air inlet side of the heat exchanger is provided with a main air inlet which is communicated with the external environment of the closed chamber, and an electric heater is also arranged on the heat exchanger;
The spray 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 variable-diameter chamber with gradually increased diameter, the mixing section and the outlet section are both 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 serves as an inlet end of the whole spray chamber and is coaxially communicated with the corresponding side of the negative pressure chamber, the minimum diameter end of each nozzle in the negative pressure chamber extends into the inlet end of the spray chamber respectively, the axial direction of each nozzle is parallel to the central axis of the spray chamber respectively, 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 outlet section is arranged on the side wall of the corresponding direction of the closed chamber to form an air outlet;
In the normal pressure chamber, the induction fan introduces air from the external environment through the auxiliary air inlet, and then the air is sent to a static pressure cavity of the jet exhaust pipe through the induction fan, and then the air is sent to a mixing section of the jet chamber through each nozzle pipe and each nozzle; simultaneously, air in the external environment enters a negative pressure chamber space at the air inlet side of the heat exchanger in the negative pressure chamber through the main air inlet, and enters a mixing section of the injection chamber from the negative pressure chamber space at the air outlet side of the heat exchanger after passing through the heat exchanger; air from the normal pressure chamber and the negative pressure chamber is mixed in the mixing section of the injection chamber, and then sequentially passes through the expansion section and the outlet section of the injection chamber and is sprayed outwards from the air outlet.
The integrated induction type cabin air conditioner indoor unit is characterized in that: in the nozzle row pipe, the range of an included angle formed between the axial direction of the nozzle and the axial direction of the nozzle pipe is limited to 0-90 degrees, and the axial direction of the nozzle is always 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 within the range of 0-90 degrees.
The integrated induction type cabin air conditioner indoor unit is characterized in that: the nozzle pipe penetrates through the partition plate between the normal pressure chamber and the negative pressure chamber and extends into the negative pressure chamber, and sealing treatment is carried out at the penetrating part so as to keep the normal pressure chamber and the negative pressure chamber separated.
The integrated induction type cabin air conditioner indoor unit is characterized in that: and when an angle exists between the nozzle pipe and the corresponding nozzle, the arc is excessive.
The integrated induction type cabin air conditioner indoor unit 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 number of specific fans is determined according to design selection.
The integrated induction type cabin air conditioner indoor unit is characterized in that: the partition plates between the normal pressure chamber and the negative pressure chamber are integrated with a water tank, and the water tank receives the heat exchanger to collect condensed water displaced by the heat exchanger.
The integrated induction type cabin air conditioner indoor unit is characterized in that: the closed cavity is a frame piece, and the surface of the closed cavity is provided with a heat insulation material.
The invention is further illustrated as follows:
In the background art, the circulating air quantity of a 4kW special air conditioner is about 600m 3/h～800 m3/h. When the traditional design is adopted, the design air quantity is 800m 3/h, the static pressure is 300Pa, the power DC is 24V, a double-head fan is needed, the power is about 380W, and the space size is about 351 multiplied by 170 multiplied by 140. The induction ratio generated by adopting the grafting induction technology of the patent is the ratio of the air quantity of the main air inlet (secondary air quantity) to the air quantity of the auxiliary air inlet (primary air quantity), the general design is between 2.5 and 4, when the induction ratio is taken to be 3, the design air quantity of the induction fan only needs 200m 3/h, the static pressure is taken to be 400Pa, the power supply DC is 24V, 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 relative, the power is saved by 76.3%, and the size is saved by 23.6%. At this time, the air quantity flowing through the heat exchanger is 600m 3/h, which is more beneficial to heat exchange design.
In conventional induction designs, large hydrostatic chambers are typically employed, without the nozzle tube, i.e., a separate hydrostatic chamber at the nozzle tube site, taking up a significant amount of the negative pressure chamber space, resulting in an affected air flow within the negative pressure chamber. By adopting the invention, a 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 is not generated before the air enters the mixing section.
The scalability of the invention is embodied in: the auxiliary air inlet can directly suck the air in the cabin, and also can 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 also can be externally connected with a local air duct to realize accurate air supply.
The invention has the beneficial effects that:
1. the invention fully utilizes 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 modularized design.
4. The invention provides more innovative design due to the expandability.
Drawings
Fig. 1 is a side view of the principle of the structure of the present invention.
Fig. 2 is a top view of the principle of the structure of the present invention.
The reference numerals in the figures illustrate: 1-frame forming piece, 2-auxiliary air inlet, 3-induced fan, 4-jet calandria (4.1-hydrostatic cavity, 4.2-nozzle pipe, 4.3-nozzle), 5-baffle, 6-main air inlet, 7-heat exchanger, 8-electric heater, 9-air outlet, 10-jet chamber (10.1-mixing section, 10.2-expansion section).
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, an integrated induction type cabin air conditioning indoor unit 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 at the bottom of the normal pressure chamber A and communicated with the external environment, the air inlet end of the induction fan 3 is communicated with the interior of the normal pressure chamber A, the air outlet end of the induction fan 3 faces the negative pressure chamber B, the air outlet end of the induction fan 3 is communicated with an injection calandria 4, the injection calandria 4 is formed by a static pressure chamber 4.1, a plurality of nozzle pipes 4.2 and a nozzle 4.3, the static pressure chambers 4.1 are integrally arranged in the normal pressure chamber A, the static pressure chambers 4.1 are formed by direct pressure chambers and gradually shrinking diameter changing chambers, the largest diameter ends of the static pressure chambers 4.1 in the static pressure chambers are coaxially communicated with one end of the direct pressure chambers, the other ends of the direct pressure chambers 4.1 are communicated with the air outlet ends of the induction fan 3, the air outlet ends of the induction fan 3 face the negative pressure chamber B, the air outlet ends of the induction fan 3 are communicated with the nozzles 4.2.2.2, and the nozzles 4.3 are respectively communicated with one end of the direct pressure pipe 4.2 and the direct pressure chamber 4.2, and the direct pressure chamber 4.1 is respectively, the direct pressure chamber is formed by the direct pressure chamber, the direct pressure chamber and the direct pressure chamber is, the direct pressure chamber and the direct pressure chamber is;
A heat exchanger 7 is arranged on 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 each nozzle pipe 4.2, the side wall of the negative pressure chamber B corresponding to the air inlet side of the heat exchanger 7 is provided with a main air inlet 6 which is communicated with the external environment of the closed chamber, and an electric heater 8 is also arranged on the heat exchanger 7;
The spray chamber 10 is formed by 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 variable-diameter chamber with gradually increased diameter, the mixing section 10.1 and the outlet section are both 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 coaxially communicated with the corresponding side of a negative pressure chamber B as the inlet end of the whole spray chamber, the minimum diameter ends of all the nozzles 4.3 in the negative pressure chamber B extend into the inlet end of the spray chamber 10 respectively, the axial direction of each nozzle 4.3 is parallel to the central axis of the spray 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 the outlet section is arranged on the side wall of the corresponding direction of the closed chamber to form an air outlet 9;
In the normal pressure chamber A, an induction fan 3 introduces air from the external environment through an auxiliary air inlet 2, and then the air is sent to a static pressure cavity 4.1 of an injection calandria 4 through the induction fan 3, and then the air is sent to a mixing section 10.1 of the injection chamber 10 through each nozzle pipe 4.2 and each nozzle 4.3; simultaneously, air in the external environment enters the space of the negative pressure chamber B on the air inlet side of the heat exchanger 7 in the negative pressure chamber B through the main air inlet 6, and enters the mixing section 10.1 of the injection chamber 10 from the space of the negative pressure chamber B on the air outlet side of the heat exchanger 7 after passing through the heat exchanger 7; air from the normal pressure chamber A and the negative pressure chamber B is mixed in the mixing section 10.1 of the injection chamber 10, and then sequentially passes through the expansion section 10.2 and the outlet section of the injection chamber 10 and is injected outwards 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 limited to 0-90 degrees, and the axial direction of the nozzle 4.3 is always 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 within 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 to extend into the negative pressure chamber B, and the penetrating part is sealed to keep the normal pressure chamber A and the negative pressure chamber B isolated.
In the present invention, the arc is excessive when there is an angle between the nozzle tube 4.2 and the corresponding nozzle 4.3.
In the invention, the induction fan 3 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 number of specific fans is determined according to design selection.
In the invention, a partition plate between the normal pressure chamber A and the negative pressure chamber B is integrated with a water tank, and the water tank receives the heat exchanger 7 to collect condensed water displaced by the heat exchanger 7.
In the invention, the closed chamber is formed by the inner space of the frame member 1, and the surface of the closed chamber is provided with a heat insulating material.
Further description: in the case of conventional induction designs, large hydrostatic chambers are usually used, without the nozzle tube 4.2, i.e. a separate hydrostatic chamber at the position of the nozzle tube 4.2, which occupies a large amount of space in the vacuum chamber, so that the air flow in the vacuum chamber is affected. By adopting the patent, a plurality of nozzle pipes 4.2 are arranged in the negative pressure chamber, a large amount of space is reserved around the nozzle pipes 4.2, the air flow is more uniform, and a side deviation phenomenon is not generated before the air enters 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=v1+v2 of the air outlet 9.
The overall height dimension of the cabin air conditioner indoor unit mainly comprises the height dimension of the induction fan 3, the dimension L1 of the static pressure cavity 4.1, the dimension L2 of the nozzle pipe 4.2 and the nozzle 4.3 and the height dimension of the spray 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 equivalent to the height of the water tank bottom as shown in the figure.
The spray 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 and the dimensions L4 and L5 of the mixing section 10.1 and the expansion section 10.2 are both on the symmetry axis, and the dimension L3 of the nozzle 4.3 extending into the mixing section 10.1 should be greater than 0.
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. according to the needs, but the invention is not the core content which needs to be protected by the patent.
The auxiliary air inlet 2 can directly suck the air in the cabin, and also can be externally connected with an air pipe and an air valve to realize fresh air supplement. For example, the circulating air quantity of a special 4kW air conditioner is 800m 3/h, if the design air quantity of the induction fan 3 is 200m 3/h, and fresh air is completely introduced from outside the vehicle, if each person is counted by 20m 3/h, 10 persons can be ensured to use.
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 will be apparent to those skilled in the art without departing from the principles of the present invention, and are within the spirit of the invention and the scope of the appended claims.
Claims (5)
1. An integrated induction type cabin air conditioner indoor unit which is characterized in that: the device comprises a closed cavity, wherein the inside of the closed cavity is partitioned by a partition plate into a normal pressure chamber, a negative pressure chamber and an injection chamber, the normal 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 normal pressure chamber, the side wall of the normal pressure chamber is provided with an auxiliary air inlet and is communicated with the external environment, the air inlet end of the induction fan is communicated with the normal 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 calandria, the injection calandria consists of a static pressure chamber, a plurality of nozzle pipes and nozzles, the static pressure chamber is integrally arranged in the normal pressure chamber, the static pressure chamber consists of a straight chamber and a gradually reduced diameter variable diameter chamber, the maximum end of the static pressure chamber is coaxially communicated with one end of the straight chamber, the other end of the straight chamber is used as the inlet end of the whole static pressure chamber and is coaxially communicated with the air outlet end of the induction fan, one end of each nozzle pipe is parallelly distributed, each nozzle pipe penetrates through the partition plate between the normal pressure chamber and the negative pressure chamber respectively, the diameter of each nozzle pipe is gradually reduced to the diameter of the negative pressure chamber, and the nozzle pipe is coaxially communicated with the maximum diameter variable diameter of each nozzle pipe; a heat exchanger is arranged at one side of the nozzle pipe in the negative pressure chamber, the heat exchanger divides the negative pressure chamber into two parts, the air outlet side of the heat exchanger faces each nozzle pipe, the side wall of the negative pressure chamber corresponding to the air inlet side of the heat exchanger is provided with a main air inlet which is communicated with the external environment of the closed chamber, and an electric heater is also arranged on the heat exchanger; the spray 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 variable-diameter chamber with gradually increased diameter, the mixing section and the outlet section are both 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 serves as an inlet end of the whole spray chamber and is coaxially communicated with the corresponding side of the negative pressure chamber, the minimum diameter end of each nozzle in the negative pressure chamber extends into the inlet end of the spray chamber respectively, the axial direction of each nozzle is parallel to the central axis of the spray chamber respectively, 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 outlet section is arranged on the side wall of the corresponding direction of the closed chamber to form an air outlet; in the normal pressure chamber, the induction fan introduces air from the external environment through the auxiliary air inlet, and then the air is sent to a static pressure cavity of the jet exhaust pipe through the induction fan, and then the air is sent to a mixing section of the jet chamber through each nozzle pipe and each nozzle; simultaneously, air in the external environment enters a negative pressure chamber space at the air inlet side of the heat exchanger in the negative pressure chamber through the main air inlet, and enters a mixing section of the injection chamber from the negative pressure chamber space at the air outlet side of the heat exchanger after passing through the heat exchanger; air from the normal pressure chamber and the negative pressure chamber is mixed in the mixing section of the injection chamber, and then sequentially passes through the expansion section and the outlet section of the injection chamber and is sprayed outwards from the air outlet;
In the nozzle row pipe, the range of an included angle formed between the axial direction of the nozzle and the axial direction of the nozzle pipe is limited to 0-90 degrees, and the axial direction of the nozzle is always 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 within the range of 0-90 degrees;
the nozzle pipe penetrates through the partition plate between the normal pressure chamber and the negative pressure chamber and extends into the negative pressure chamber, and sealing treatment is carried out at the penetrating part so as to keep the normal pressure chamber and the negative pressure chamber separated.
2. An integrated induction type cabin air conditioning indoor unit according to claim 1, wherein: and when an angle exists between the nozzle pipe and the corresponding nozzle, the arc is excessive.
3. An integrated induction type cabin air conditioning indoor unit 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 120 Pa-600 Pa, and the number of the induction fan is determined according to design selection.
4. An integrated induction type cabin air conditioning indoor unit according to claim 1, wherein: the partition plates between the normal pressure chamber and the negative pressure chamber are integrated with a water tank, and the water tank receives the heat exchanger to collect condensed water displaced by the heat exchanger.
5. An integrated induction type cabin air conditioning indoor unit according to claim 1, wherein: the closed cavity is a frame piece, and the surface of the closed cavity 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 |
|---|---|
| CN111284298A CN111284298A (en) | 2020-06-16 |
| CN111284298B true CN111284298B (en) | 2024-05-03 |
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Family Applications (1)
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| CN202010230132.9A Active CN111284298B (en) | 2020-03-27 | 2020-03-27 | Integrated inductive cabin air conditioner indoor unit |
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