Fresh air environment control integrated machine

Abstract

The present invention discloses a fresh air environment control integrated machine, wherein a mounting cavity is provided in a casing, and the mounting cavity is divided into a first mounting cavity, a second mounting cavity and a third mounting cavity arranged in sequence along the length direction of the mounting cavity by a partition assembly, the second mounting cavity is divided into an internal circulation fan cavity and a fresh air fan cavity, the third mounting cavity is divided into an internal circulation air heat exchanger cavity and a fresh air heat exchanger cavity, and a heat exchange core is provided in the first mounting cavity; an exhaust inlet connected to the first mounting cavity and an internal circulation air inlet connected to the internal circulation fan cavity are provided on the casing; there are three internal circulation air inlets, one of which is provided at the side of the casing, and the other two are provided at the bottom of the casing, and are connected to the internal circulation fan cavity and the fresh air fan cavity in a one-to-one correspondence; there are two exhaust inlets, one of which is provided at the side of the casing, and the other is provided at the bottom of the casing. The integrated machine has a compact layout, a small volume, and has two optional modes of side return air and bottom return air to meet the installation requirements of different scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a fresh air environment control integrated machine. Background Art

[0002] Traditional fresh air fans do not have the internal circulation air processing function of air conditioners. Users need to choose to install them in combination with fresh air fans and air conditioners, which takes up a large space and is inconvenient to install. Therefore, fresh air and air conditioning functions integrated all-in-one fresh air environment control machines came into being.

[0003] The fresh air and environmental control all-in-one machine is equipped with a full heat exchange core, heat exchanger, fan, filter and other components. The number and layout of each component are different on different models to achieve functions such as fresh air, circulating air, cooling, heating, and dehumidification. The layout of each component plays a particularly important role in the miniaturization design of the whole machine on the basis of realizing different working modes. The optimization of the layout is a technical direction that needs to be continuously improved in this field. In addition, the return air outlet of the existing all-in-one machine is generally set on the side, which is a side return air method. However, in some scenarios with small space or limited indoor ceiling installation space, the side return air method will seriously affect the return air effect of the whole machine, thereby reducing the return air performance of the whole machine.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In response to the problems pointed out in the background technology, the present invention proposes an all-in-one fresh air and environmental control machine. The whole machine has a compact layout, a small size, and two optional modes of side return air and bottom return air to meet the installation requirements of different scenarios.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] In some embodiments of the present application, a fresh air environment control integrated machine is provided, and its inner cavity is divided into three independent functional compartments by a first partition part and a second partition part. The first installation cavity is a full heat exchange compartment, which is used to realize the full heat exchange function of the fresh air. The second installation cavity is a fan power compartment, which provides an airflow field and its flow power for the full hot fresh air to enter the room and the air conditioner to operate. The third installation cavity is a room air conditioning compartment, which realizes the ambient air conditioning function of the room air conditioner.

[0008] There are three internal circulation air inlets, one of which is arranged at the side of the casing 100, and the other two are arranged at the bottom of the casing and are connected to the internal circulation fan cavity and the fresh air fan cavity one by one.

[0009] There are two exhaust inlets, one of which is arranged at the side of the casing, and the other is arranged at the bottom of the casing.

[0010] The fresh air environment control integrated machine has two air return modes: side return and bottom return. You can choose one of the return modes according to the environmental conditions of the installation site, which increases the application range of this type of product. At the same time, the two internal circulation air inlets at the bottom can also serve as maintenance ports for the fresh air fan and the internal circulation fan in the fan power compartment, making it convenient to repair the fresh air fan and the internal circulation fan.

[0011] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 is a structural schematic diagram of the fresh air environment control integrated machine according to the embodiment as viewed from the bottom side;

[0014] Figure 2 for Figure 2 The schematic diagram of the structure after the maintenance cover of the structure is opened;

[0015] Figure 3 This is a top view of the fresh air environment control integrated machine according to the embodiment with the top cover omitted;

[0016] Figure 4 The first operation mode of the fresh air environment control integrated machine according to the embodiment;

[0017] Figure 5 The second operation mode of the fresh air environment control integrated machine according to the embodiment;

[0018] Figure 6 This is a structural schematic diagram of an internal circulation air inlet and an exhaust air inlet being arranged at the bottom of the fresh air environment control integrated machine according to an embodiment;

[0019] Figure 7 is an exploded view of a housing body according to an embodiment;

[0020] Figure 8 This is a schematic diagram of the structure of the housing body according to the embodiment after the inner cover is omitted;

[0021] Fig. 9It is a schematic diagram of the assembly between the top wall, the inner cover plate, and the thermal insulation layer of the casing body according to the embodiment;

[0022] Fig.10 is a schematic diagram of the assembly between the inner cover plate and the side wall of the casing body according to the embodiment;

[0023] Fig.11 is a schematic diagram of the end structure of the support portion according to an embodiment;

[0024] Fig.12 is an exploded view of a housing body, a partition, and two bottom panels according to an embodiment;

[0025] Fig.13 is a schematic diagram of an assembly process of two bottom panels according to an embodiment;

[0026] Fig.14 is a schematic structural diagram of a first bottom panel according to an embodiment;

[0027] Fig.15 is a schematic structural diagram of a second bottom panel according to an embodiment;

[0028] Fig.16 for Fig.14 and Fig.15 Enlarged view of the structure at F1 and F2;

[0029] Fig.17 for Fig.14 Enlarged view of G1 in the middle;

[0030] Fig.18 for Fig.15 Enlarged view of G2 in the middle;

[0031] Fig.19 is a schematic structural diagram of a casing body according to an embodiment;

[0032] Fig. 20 is a schematic structural diagram of a first baffle portion according to an embodiment;

[0033] Fig.21 is a bottom view of the fresh air environment control integrated machine according to the embodiment;

[0034] Fig. 22 for Fig.21 Middle AA section view;

[0035] Fig.23 This is the BB section view in 21;

[0036] Fig.24 is a schematic diagram of the assembly structure between the clamping portion and the socket according to an embodiment;

[0037] Fig.25 This is the CC section view of Figure 21;

[0038] Fig.26 It is the DD section view in 21;

[0039] Fig. 27 It is the EE section view of 21;

[0040] Fig.28 is a schematic diagram for calculating the size of two heat exchangers according to an embodiment;

[0041] Reference numerals:

[0042] A-fresh air inlet, B-side exhaust air inlet, C-side internal circulation air inlet, D-exhaust air outlet, E-fresh air outlet, F, G-internal circulation air outlet, K, L-bottom internal circulation air inlet, H-bottom exhaust air inlet. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] Reference Figures 1 to 3 The fresh air environment control integrated machine in this embodiment includes a casing 100, and an installation cavity is formed in the casing 100. A plurality of installation areas are separated in the installation cavity by a partition structure, forming an outdoor fresh air duct, an indoor circulating air duct, and an indoor exhaust air duct. A fresh air fan 230 and a fresh air heat exchanger 210 are provided in the fresh air duct, an internal circulating air fan 240 and an internal circulating air heat exchanger 220 are provided in the indoor circulating air duct, and an exhaust fan 250 is provided in the indoor exhaust air duct.

[0045] A heat exchange core 260 is also provided in the installation cavity. The fresh air inlet and fresh air outlet of the heat exchange core 260 are respectively connected to the outdoor fresh air duct, and the exhaust air inlet and exhaust air outlet of the heat exchange core 260 are respectively connected to the indoor exhaust air duct to realize heat exchange between fresh air and exhaust air.

[0046] The fresh air environment control all-in-one machine can meet the needs of indoor air temperature regulation, fresh air introduction, indoor air circulation, and indoor exhaust.

[0047] The heat exchange core 260 is installed in the first installation cavity 410, and the first installation cavity 410 is separated by partitions into a fresh air inlet side duct 411, a fresh air outlet side duct 412, an exhaust air inlet side duct 413, and an exhaust air outlet side duct 414 which are correspondingly connected to the four side air outlets of the heat exchange core 260.

[0048] The partition assembly divides the installation cavity into a first installation cavity 410, a second installation cavity 420 and a third installation cavity 430 which are arranged sequentially along the length direction of the installation cavity. The second installation cavity 420 is divided into an internal circulation fan cavity 422 and a fresh air fan cavity 421 which are arranged sequentially along the width direction of the installation cavity. The third installation cavity 430 is divided into an internal circulation air heat exchanger cavity 432 and a fresh air heat exchanger cavity 431 which are arranged sequentially along the width direction of the installation cavity.

[0049] A first damper (not marked) for controlling the connection or isolation between the two chambers is provided on the partition between the fresh air fan chamber 421 and the internal circulation fan chamber 422, and a second damper (not marked) for controlling the connection or isolation between the two chambers is provided on the partition between the fresh air fan chamber 421 and the fresh air outlet side air duct 412.

[0050] A fresh air fan 230 is installed in the fresh air fan cavity 421 , an internal circulation fan 240 is installed in the internal circulation fan cavity 422 , a fresh air heat exchanger 210 is installed in the fresh air heat exchanger cavity 431 , and an internal circulation air heat exchanger 220 is installed in the internal circulation air heat exchanger cavity 432 .

[0051] The fresh air inlet side duct 411, the fresh air outlet side duct 412, the fresh air machine cavity 421, and the fresh air heat exchanger cavity 431 are connected in sequence to form an outdoor fresh air duct. A fresh air inlet (denoted as A) connected to the fresh air inlet side duct 411 and a fresh air outlet (denoted as E) connected to the fresh air heat exchanger cavity 431 are provided on the side wall of the housing 100.

[0052] The exhaust inlet side duct 413 is connected to the exhaust outlet side duct 414 to form an indoor exhaust duct. The housing 100 is provided with an exhaust inlet connected to the exhaust inlet side duct 413 and an exhaust outlet (denoted as D) connected to the exhaust outlet side duct 414.

[0053] The inner circulation fan cavity 422 is connected to the inner circulation air heat exchanger cavity 432 to form an inner circulation air duct. The housing 100 is provided with an inner circulation air inlet connected to the inner circulation fan cavity 422 and an inner circulation air outlet 462 (denoted as F and G) connected to the inner circulation air heat exchanger cavity 432.

[0054] For the innovative settings of the internal circulation air inlet and exhaust air inlet, refer to Figure 4 and Figure 6 There are three internal circulation air inlets, one of which (denoted as C) is arranged at the side of the casing 100, and the other two are arranged at the bottom of the casing 100, and are connected to the internal circulation fan cavity 422 and the fresh air fan cavity 421 one by one. The internal circulation air inlet connected to the internal circulation fan cavity 422 is denoted as L, and the internal circulation air inlet connected to the fresh air fan cavity 421 is denoted as K.

[0055] There are two exhaust inlets, one exhaust inlet (denoted as B) is disposed at the side of the housing 100 , and the other exhaust inlet (denoted as H) is disposed at the bottom of the housing 100 .

[0056] When the fresh air environment control integrated machine adopts the side return air mode, the internal circulation air inlet C and the exhaust air inlet B located on the side are opened, and the internal circulation air inlets K and L and the exhaust air inlet H located at the bottom are closed;

[0057] When the fresh air environment control integrated machine adopts the bottom return air mode, the internal circulation air inlets K, L and the exhaust air inlet H located at the bottom are opened, and the internal circulation air inlet C and the exhaust air inlet B located on the side are closed.

[0058] For the specific structural settings of the partition assembly, refer to Figure 3 The partition assembly includes a first partition portion 191 , a second partition portion 192 , a third partition portion 193 and a fourth partition portion 194 .

[0059] The first partition plate 191 and the second partition plate 192 are arranged at intervals along the length direction of the installation cavity, dividing the installation cavity into a first installation cavity 410, a second installation cavity 420 and a third installation cavity 430 arranged in sequence. A second damper is disposed on the first partition plate 191.

[0060] The third partition portion 193 is disposed in the second installation cavity 420 to divide the second installation cavity 420 into an internal circulation fan cavity 422 and a fresh air fan cavity 421 which are sequentially arranged along the width direction of the installation cavity. A first damper is disposed on the third partition portion 193 .

[0061] The fourth partition portion 194 is disposed in the third installation cavity 430 to divide the third installation cavity 430 into an internal circulation air heat exchanger cavity 432 and a fresh air heat exchanger cavity 431 which are sequentially arranged along the width direction of the installation cavity.

[0062] The fresh air environment control integrated machine in the present application is divided into three independent functional compartments by the first partition part 191 and the second partition part 192. The first installation cavity 410 is a full heat exchange compartment, which is used to realize the full heat exchange function of the fresh air. The second installation cavity 420 is a fan power compartment, which provides an airflow field and its flow power for the full hot fresh air to enter the room and the air conditioner to operate. The third installation cavity 430 is a room air conditioning compartment, which realizes the ambient air conditioning function of the room air conditioner.

[0063] The three functional compartments are connected to each other through sheet metal shells and internal sheet metal partitions, thus forming the main frame of the whole machine. These interconnected frames support and reinforce each other to form a stable frame structure, ensuring the stability and reliability of the entire frame. At the same time, the fan in the fan power compartment is fixed to the partition between the fan power compartment and the room air conditioning compartment through its fixing seat, ensuring the firmness of the fan fixation and reliability during operation.

[0064] The fresh air environment control integrated machine in this application has two air return modes: side return and bottom return. One of the air return modes can be selected according to the environmental conditions of the installation site, which increases the application range of this type of product. At the same time, the two internal circulation air inlets K and L at the bottom can also serve as maintenance ports for the fresh air fan and the internal circulation fan in the fan power compartment, making it convenient to repair the fresh air fan and the internal circulation fan.

[0065] The two heat exchangers in the fresh air and environmental control integrated machine in the present application respectively have independent air flow channels, which can be operated separately or simultaneously. Through different operating modes, multiple functional modes such as separate cooling, separate heating, simultaneous cooling, simultaneous heating, one cooling + one heating can be realized. The operating mode of the air conditioner can be selected according to the actual needs of the room environment, which can accurately meet the environmental needs and enable more refined management, so the product is more energy-efficient.

[0066] The fresh air and environmental control integrated machine in this application has multiple operating modes, including fresh air only mode, air conditioning only mode (including cooling, heating, and dehumidification), and fresh air + air conditioning mode (including fresh air + cooling, fresh air + heating, and fresh air + dehumidification).

[0067] The following is a brief description of the operation of the fresh air environment control integrated machine in this application.

[0068] Operation mode 1: only full hot fresh air, refer to Figure 4 and Figure 6 :

[0069] 1. Fresh air intake method:

[0070] According to the actual needs of the room environment, you can choose one of the following two methods to operate.

[0071] 1.1. [AE]: Fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, the fresh air heat exchanger 210, and enters the room from the fresh air outlet E.

[0072] 1.2. [A-E+FG]: Fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230+internal circulation fan 240, the fresh air heat exchanger 210+internal circulation heat exchanger 220, and enters the room from the fresh air outlet E, internal circulation outlets F, G.

[0073] 2Indoor exhaust method:

[0074] When the machine is installed with side return air, the exhaust method is side exhaust.

[0075] 2.1. [BD][Side exhaust]: Indoor polluted air enters from the exhaust inlet B, passes through the heat exchange core and the exhaust fan, and is discharged to the outside from the exhaust outlet D.

[0076] When the machine is installed with downward return air, the exhaust method is downward exhaust.

[0077] 2.2. [HD] [Downward exhaust]: Indoor polluted air enters from the exhaust inlet H, passes through the heat exchange core 260 and the exhaust fan 250, and is discharged to the outside from the exhaust outlet D.

[0078] Operation mode 2 (air conditioning only, indoor air circulation), refer to Figure 5 and Figure 6 :

[0079] 1. Side return air mode:

[0080] According to the actual needs of the room environment, you can choose one of the following two methods to operate.

[0081] 1.1. [C-FG]: Single internal circulation air conditioning operation: Return air enters from the internal circulation air inlet C, passes through the internal circulation fan 240 and the internal circulation air heat exchanger 220, and enters the room from the internal circulation air outlet F+G.

[0082] 1.2. [C-E+FG]: Fresh air + internal circulation air conditioning operate simultaneously: return air enters from the internal circulation air inlet C, passes through the internal circulation fan 240 + fresh air fan 230, the internal circulation heat exchanger 220 + fresh air heat exchanger 210, and enters the room from the fresh air outlet E and the internal circulation air outlet F+G.

[0083] 2. Back air mode:

[0084] According to the actual needs of the room environment, you can choose one of the following three methods to operate.

[0085] 2.1. [KE][Lower return air]: Single fresh air air conditioning operation: Return air enters from the internal circulation air inlet K, passes through the fresh air fan 230 and the fresh air heat exchanger 210, and enters the room from the fresh air outlet E.

[0086] 2.2. [L-FG] [Lower return air]: Single internal circulation air conditioning operation: Return air enters from the internal circulation air inlet L, passes through the internal circulation fan 240 and the internal circulation air heat exchanger 220, and enters the room from the internal circulation air outlet F+G.

[0087] 2.3. [KE]+ [L-FG][Lower return air]: Fresh air + internal circulation air conditioning operate simultaneously: return air enters from the internal circulation air inlets K and L respectively, passes through the internal circulation fan 240, the fresh air fan 230, the internal circulation air heat exchanger 220, and the fresh air heat exchanger 210 respectively, and enters the room from the fresh air outlet E and the internal circulation air outlet F+G.

[0088] Operation mode 3 (full heat and fresh air + air conditioning), such as Figures 4 to 6 :

[0089] 1. Side exhaust + side return air mode

[0090] 1.1 Fresh air intake method:

[0091] According to the actual needs of the room environment, you can choose one of the following 5 methods to operate.

[0092] 1.1.1, [AE]: Only the fresh air air conditioner is turned on: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, the fresh air heat exchanger 210, and enters the room from the fresh air outlet E.

[0093] 1.1.2. [A-E+FG]: Fresh air + internal circulation air conditioning are turned on at the same time: fresh air enters from the fresh air inlet A, passes through the heat exchange core 210, the fresh air fan 230 + the internal circulation fan 240, the fresh air heat exchanger 210 + the internal circulation air heat exchanger 220, and enters the room from the outlet EFG.

[0094] 1.1.3. [A-E+FG]+[C-E+FG]: fresh air + internal circulation air conditioning are turned on at the same time: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230+internal circulation fan 240, the fresh air heat exchanger 210+internal circulation air heat exchanger 220, and enters the room from the outlet EFG. At the same time, the indoor circulating return air enters from the inlet C, passes through the internal circulation fan 240+fresh air fan 230, the internal circulation air heat exchanger 220+fresh air heat exchanger 210, and enters the room from the outlet EFG.

[0095] 1.1.4, [AE]+[C-FG]: fresh air + internal circulation air conditioning are turned on at the same time:

[0096] Fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, and the fresh air heat exchanger 210, and enters the room from the outlet E.

[0097] The indoor circulating return air enters from the inlet C, passes through the internal circulation fan 240 and the internal circulation air heat exchanger 220, and enters the room from the outlet FG.

[0098] 1.1.5, [AE]+[C-FG]: Only the internal circulation air conditioner is turned on at the same time:

[0099] Fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, and the fresh air heat exchanger 210, and enters the room from the outlet E.

[0100] The indoor circulating return air enters from the inlet C, passes through the internal circulation fan 240 and the internal circulation air heat exchanger 220, and enters the room from the outlet FG.

[0101] 1.2 Indoor exhaust method:

[0102] 1.2.1. [BD] [Side exhaust]: Indoor dirty air enters from the exhaust inlet B, passes through the heat exchange core 260 and the exhaust fan 250, and is discharged to the outside from the exhaust outlet D.

[0103] 2. Exhaust below + return air below

[0104] 2.1 Fresh air intake method:

[0105] According to the actual needs of the room environment, you can choose one of the following 6 methods to operate.

[0106] 2.1.1. [AE]: Only the fresh air air conditioner is turned on: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, the fresh air heat exchanger 210, and enters the room from the fresh air outlet E.

[0107] 2.1.2. [AE]+[KE]: Only the fresh air air conditioner is turned on: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230, and the fresh air heat exchanger 210, and enters the room from the fresh air outlet E. At the same time, indoor return air enters from K, passes through the fresh air fan 230 and the fresh air heat exchanger 210, and enters the room from the outlet E.

[0108] 2.1.3. [A-E+FG]: Fresh air + internal circulation air conditioning are turned on at the same time: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230 + the internal circulation fan 240, the fresh air heat exchanger 210 + the internal circulation air heat exchanger 220, and enters the room from the outlet EFG.

[0109] 2.1.4, [A-E+FG]+[KE]+[L-FG]: fresh air + internal circulation air conditioning are turned on at the same time: fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230+internal circulation fan 240, the fresh air heat exchanger 210+internal circulation air heat exchanger 220, and enters the room from the outlet EFG. At the same time, the indoor circulating return air enters from the inlets K and L, passes through the internal circulation fan 240+fresh air fan 230, the internal circulation air heat exchanger 220+fresh air heat exchanger 210, and enters the room from the outlet EFG.

[0110] 2.1.5, [A-E+FG]: Only the internal circulation air conditioner is turned on at the same time:

[0111] Fresh air enters from the fresh air inlet A, passes through the heat exchange core 260, the fresh air fan 230+internal circulation fan 240, the fresh air heat exchanger 210+internal circulation air heat exchanger 220, and enters the room from the outlet EFG.

[0112] 2.1.6, [A-E+FG]+[L-FG]: Only the internal circulation air conditioner is turned on at the same time:

[0113] Fresh air enters from fresh air inlet A, passes through fresh air inlet A, fresh air fan 230 + internal circulation fan 240, fresh air heat exchanger 210 + internal circulation air heat exchanger 220, and enters the room from outlet EFG. At the same time, indoor circulating return air enters from inlet L, passes through internal circulation fan 240, internal circulation air heat exchanger 220, and enters the room from outlet FG.

[0114] 2.2 Indoor exhaust method:

[0115] 1. [HD] [Downward exhaust]: Indoor dirty air enters from the exhaust inlet H, passes through the heat exchange core 260 and the exhaust fan 250, and is discharged to the outside from the exhaust outlet D.

[0116] In this application, the fresh air environment control integrated machine has two options for different operating modes, including manual operation mode and automatic operation mode.

[0117] The all-in-one machine is equipped with a controller and an all-in-one sensor, both of which are installed in the room. The controller can select the operating mode, and the all-in-one sensor can measure various parameters of the ambient air in the room, such as formaldehyde, carbon dioxide, VOC (volatile organic compounds), temperature, humidity, PM2.5, etc.

[0118] In manual operation mode, users can select appropriate operation modes (such as cooling, heating, dehumidification, fresh air, cooling + fresh air, heating + fresh air, dehumidification + fresh air) and set the desired temperature, humidity and other parameters according to their own feelings and actual needs. Then the all-in-one machine can compare and judge the actual temperature, humidity and other parameters measured by the sensor with the set related parameters. When the difference between the measured parameters and the set parameters is greater than or equal to the target difference A, in order to quickly meet the needs of users, the unit system selects the fresh air heat exchanger 210 and the internal circulation air heat exchanger 220 to run at the same time; after the unit has been running for a period of time, when the difference between the measured parameters of the all-in-one sensor and the user-set parameters is less than the target difference A and greater than or equal to the target difference B, the unit system will stop the fresh air heat exchanger 210 or the internal circulation air heat exchanger 220 according to the operation mode selected by the user, so that the unit can run more energy-efficiently while meeting the user's needs. Until the parameter conditions set by the user are reached. The target difference A and the target difference B are the judgment values ​​pre-set in the unit control program.

[0119] In the automatic operation mode, the unit system will compare the relevant parameters of the ambient air in the current room measured by the all-in-one sensor according to the temperature, humidity, carbon dioxide and other parameter values ​​preset in the control program, and similarly determine the difference between the two, and then compare this difference with the target difference. When the difference between the measured parameter and the set parameter is greater than or equal to the target difference A, in order to quickly meet the needs of the user, the unit system selects the fresh air heat exchanger 210 and the internal circulation heat exchanger 220 to run simultaneously; after the unit has been running for a period of time, when the difference between the measured parameter of the all-in-one sensor and the user-set parameter is less than the target difference A, and greater than or equal to the target difference B, the unit system will stop the fresh air heat exchanger 210 or the internal circulation air heat exchanger 220 according to the operation mode selected by the user, so that the unit can run more energy-efficiently under the premise of meeting the user's needs. Until the temperature, humidity, carbon dioxide and other parameter values ​​preset in the control program are reached.

[0120] The fresh air environment control integrated machine in this application adopts dual heat exchangers, and the two heat exchangers are staggered. The volume of the unit will not increase due to multiple heat exchangers. At the same time, the outlet pipes on the same side are achieved, saving installation space.

[0121] Reference Fig.28 , the two heat exchangers are staggered along the width direction of the installation cavity, and the widths are recorded as W1 and W2 respectively. The specific calculation method of W1 and W2 is as follows:

[0122] (1) Set the cooling capacity Q1 and Q2 of the two heat exchangers according to the actual requirements of the unit specifications;

[0123] 2) When the fresh air outlet and the internal circulation air outlet need to be mixed and then delivered to the room, in order to avoid condensation caused by uneven temperature after the two air are mixed, when setting the size ratio of the two heat exchangers, the setting method is as follows: Set the outlet air temperature of the fresh air heat exchanger 210 to be equal to the outlet air temperature of the internal circulation air heat exchanger 220;

[0124] 3) In order to ensure production efficiency and standardized universal design, the cross-sectional shapes of the two heat exchangers are designed to be the same. At the same time, the size specifications, heat dissipation area, and spacing between the aluminum fins used for heat dissipation are designed to be the same. In this way, the total heat exchange area of ​​the two heat exchangers is only related to the sizes of W1 and W2.

[0125] The calculation method is as follows: According to the above set conditions, based on the general calculation method of refrigeration principle, the required W1 and W2 can be calculated, and then the assembly space W0 of the two heat exchangers can be calculated based on the total width of the unit;

[0126] Then verify that if W1+W2≤W0, the design is complete. If W1+W2≤W0 cannot be satisfied, it is necessary to make a balanced adjustment based on various factors such as the unit's overall dimensions and unit performance specifications until W1+W2≤W0 is satisfied and the design is complete.

[0127] The fresh air and environmental control integrated machine in the present application has not only achieved the above-mentioned compact layout and two optional return air methods, but also made creative improvements to the casing structure in order to solve the technical problems in the prior art that the bottom panel of the casing is not easy to disassemble and the components inside the casing are not easy to assemble.

[0128] For the technical solution to facilitate the disassembly and assembly of the bottom panel, refer to Figures 12 to 26 , Fig.12 and Fig.13 The structure shown omits components such as the internal air duct, heat exchange core, heat exchanger, fan, and partition. The housing 100 includes a housing body and a bottom panel. The housing body forms an installation cavity with an open bottom. The bottom panel includes a first bottom panel 310 and a second bottom panel 320. The first bottom panel 310 and the second bottom panel 320 are respectively provided with a maintenance port 130. When the fresh air environment control integrated machine is provided with a bottom return air form, the internal circulation air inlets K and L provided at the bottom are provided on the second bottom panel 320 as maintenance ports on the second bottom panel 320.

[0129] When the fresh air environment control integrated machine is in normal use, the installation direction is as follows: Figure 1 As shown, the bottom panel is located underneath.

[0130] When assembling the fresh air environment control integrated machine, the assembly orientation is as follows Fig.12 As shown, the casing body is placed on a workbench with the opening facing upward, and the heat exchange core, heat exchanger, fan, partition and other components are first installed in the installation cavity of the casing body, and finally the first bottom panel 310 and the second bottom panel 320 are installed.

[0131] For ease of description, Figure 1 Taking the orientation of the fresh air environment control integrated machine in normal use as an example, six orientations are defined: front, back, left, right, top, and bottom.

[0132] Different from the whole bottom panel structure in the prior art, the bottom panel in this embodiment is two independent split structures, including a first bottom panel 310 and a second bottom panel 320. A maintenance port 130 can be set on each bottom panel to facilitate maintenance of functional components in the corresponding coverage area.

[0133] How to achieve independent and convenient disassembly and assembly of the two bottom panels is one of the technical problems that need to be solved in this application.

[0134] Fig.12 The partition located in the mounting cavity corresponds to Figure 3The first partition portion 191 in the installation cavity is divided into first installation areas (corresponding to the first partition portion 191) arranged in sequence along the length direction thereof. Figure 3 The first mounting cavity 410 in the first mounting cavity 410 and the second mounting area (corresponding to Figure 3 In the second installation cavity 420+third installation cavity 430, a first slot 1911 is provided at the bottom of the first partition portion 191, the insertion opening of the first slot 1911 faces the first installation area, and the wall surrounding the first slot 1911 protrudes toward one side of the second installation area.

[0135] The first bottom panel 310 is disposed at the bottom opening of the first installation cavity 410 to block the bottom opening of the first installation cavity 410. The second bottom panel 320 is disposed at the bottom opening of the second installation cavity 420 and the third installation cavity 430 to block the bottom opening of the second installation cavity 420 and the third installation cavity 430.

[0136] The first partition portion 191 not only serves to separate the chambers, but is also used to connect and fix the first bottom panel 310 and the second bottom panel 320 .

[0137] The first bottom panel 310 and the second bottom panel 320 are respectively rectangular structures, and reliable fixing and installation of the two involves installation of their respective four sides.

[0138] The first bottom panel 310 and the second bottom panel 320 are respectively fixed to the first partition portion 191 by an inserting fixing structure on one side close to the first partition portion 191, the front / rear sides of the first bottom panel 310 and the second bottom panel 320 and the front / rear side walls of the casing body are fixed by a snap-fitting fixing structure, and the left / right sides of the first bottom panel 310 and the second bottom panel 320 and the left / right side walls of the casing body are fixed by a screw. The specific assembly structure of each side is described in detail below.

[0139] The plug-in fixing structure between the first bottom panel 310, the second bottom panel 320 and the first partition portion 191 is specifically as follows:

[0140] The structure of the first partition portion 191 is as follows Fig. 20 As shown, Fig. 20 The placement posture of the first partition part 191 in the figure is the placement posture of the fresh air environment control integrated machine during assembly production. Figure 1 The fresh air and environmental control integrated machine shown in the figure is described with reference to the orientation during normal use. A first slot 1911 is provided at the bottom of the first partition portion 191. The first slot 1911 extends along the length direction of the first partition portion 191. The plug of the first slot 1911 faces the first installation cavity 410, and the wall surrounding the first slot 1911 protrudes toward one side of the second installation cavity 420.

[0141] The first slot 1911 is composed of a plurality of bent flanges. The first slot 1911 and the first partition portion 191 are bent from the same sheet of material. The first slot 1911 serves to simultaneously install the first bottom panel 310 and the second bottom panel 320 .

[0142] The structure of the first bottom panel 310 is as follows: Fig.14 As shown, the first bottom panel 310 is provided with an inserting portion 311 on one side close to the first partition portion 191, referring to Fig. 22 The plug-in portion 311 is inserted into the first slot 1911 .

[0143] The structure of the second bottom panel 320 is shown in FIG15. The second bottom panel 320 is provided with a second slot 321 on one side close to the first partition portion 191. Fig. 22 The wall surrounding the first slot 1911 is inserted into the second slot 321 .

[0144] The plug-in portion 311, the first slot 1911, and the second slot 321 overlap each other but are independent of each other. The first slot 1911 on the first partition portion 191 enables the two bottom panels to be assembled and disassembled separately without affecting each other. To ensure tight assembly, the three are appropriately interference fit.

[0145] The clamping and fixing structure between the first bottom panel 310, the second bottom panel 320 and the front / rear side wall of the housing body is specifically as follows:

[0146] The structure of the casing is as follows Fig.19 As shown, Fig.19 The placement of the housing in the figure is the placement of the fresh air environment control integrated machine during assembly and production. Figure 1 The fresh air environment control integrated machine shown is described with reference to the orientation when in normal use. The bottoms of the front side wall and the rear side wall of the casing body are respectively provided with first flanges 181 , and the first flanges 181 are provided with sockets 183 .

[0147] The front and rear sides of the first bottom panel 310 and the second bottom panel 320 are respectively provided with second flanges 340 , and the second flanges 340 are provided with a snap-fitting portion 330 . The first flange 181 is in contact with the second flange 340 , and the snap-fitting portion 330 is snapped into the corresponding socket 183 .

[0148] The screw fixing structure between the first bottom panel 310, the second bottom panel 320 and the left / right side wall of the housing body is as follows:

[0149] The right side of the first bottom panel 310 and the left side of the second bottom panel 320 are respectively provided with vertically extending connecting flanges 370, and the connecting flanges 370 are fixedly connected to the left and right walls of the housing body through connecting members (such as screws). Fig.14 , the connecting flange 370 on the second bottom panel 320, refer to Fig.15 The screw fixing structure between the two and the left / right side wall of the housing body is shown in Fig.26 and Fig. 27 .

[0150] The installation process of the first bottom panel 310 and the second bottom panel 320 is as follows: Fig.13 , and Fig.13 Taking the shown orientation as an example, the two bottom panels are dropped down to the top of the casing body; the snap-in portion 330 on the first bottom panel 310 is snap-fitted with the corresponding socket 183, the plug-in portion 311 on the first bottom panel 310 is inserted into the first slot 1911, and then the right side connecting flange 370 of the first bottom panel 310 is fixed to the right side wall of the casing body by screws, thus completing the fixed installation of the first bottom panel 310; the snap-in portion 330 on the second bottom panel 320 is snap-fitted with the corresponding socket 183, the second slot 321 on the second bottom panel 320 is plugged into the wall of the first slot 1911, and then the left side connecting flange 370 of the second bottom panel 320 is fixed to the left side wall of the casing body by screws, thus completing the fixed installation of the second bottom panel 320.

[0151] There is no distinction between the first bottom panel 310 and the second bottom panel 320 for assembly. The two can be assembled independently of each other, and can also be disassembled independently of each other without affecting each other.

[0152] exist Figure 1 In the usage posture shown, the bottom panel serves as the main surface of the fresh air and environmental control integrated machine, and there are no exposed screws on it.

[0153] The first bottom panel 310 is screwed only on the right side, and the second bottom panel 320 is screwed only on the left side. No screws are required at other places. The two bottom panels can be installed only through mechanical clipping and plug-in structures, and by utilizing the structural improvements of the casing body and the first partition part 191, which greatly improves the installation efficiency and assembly reliability.

[0154] In some embodiments of the present application, a third flange 350 is respectively provided on the edges of the front / rear sides of the first bottom panel 310 and the second bottom panel 320, and the third flange 350 extends in a vertical direction toward a side close to the casing body, and the second flange 340 extends horizontally from the third flange 350 toward the inner side of the installation cavity. A notch 341 is provided on the second flange 340, and the notch 341 is open toward one side of the installation cavity, and the clamping portion 330 is provided at the notch 341.

[0155] Grooves (not shown) for installing the insulation layer are formed between the second flange 340 and the first bottom panel 310 and between the second flange 340 and the second bottom panel 320, respectively, to facilitate the installation of the insulation layer. In addition, the front / rear sides of the two bottom panels are formed into two bending structures through the second flange 340 and the third flange 350, which helps to improve the structural strength.

[0156] Reference Fig.16 The clamping portion 330 includes a clamping transverse portion I331, a clamping vertical portion 332, and a clamping transverse portion II333 which are connected in sequence. The extension direction of the clamping transverse portion I331 and the clamping transverse portion II333 is the same as the extension direction of the second flange 340. The clamping vertical portion 332 is connected between the clamping transverse portion I331 and the clamping transverse portion II333. The clamping transverse portion I331 extends from one side of the notch 341 toward the center of the notch 341, and the clamping vertical portion 332 extends from the clamping transverse portion I331 toward the side close to the first flange 181.

[0157] When installing the first bottom panel 310 and the second bottom panel 320, refer to Fig.13 , drop the first bottom panel 310 and the second bottom panel 320 down to the top of the casing body, the second flange 340 drops to the top of the first flange 181, and the snap-in portion 330 falls into the corresponding socket 183, and then push the two bottom panels toward one side of the first partition portion 191 respectively, and the second flange 340 slides along the first flange 181. After being pushed into place, one side of the socket 183 abuts against the snap-in vertical portion 332, the second flange 340 abuts against the bottom side of the first flange 181, and the snap-in horizontal portion II 333 abuts against the upper side of the first flange 181.

[0158] The structural arrangement of the snap-on portion 330 and the socket 183 enables the snap-on portion 330 to fall into the corresponding socket 183 when the two bottom panels are placed on the top of the casing body from top to bottom, and then the two bottom panels can be pushed horizontally to achieve reliable snap-on connection between the snap-on portion 330 and the socket 183, thereby facilitating installation; and the second flange 340 and the snap-on portion 330 are located on the upper and lower sides of the first flange 181, and are staggered in the upper and lower directions, so that the structure is reliable.

[0159] In some embodiments of the present application, refer to Fig.16 The clamping portion 330 also includes a clamping inclined portion 334, which extends obliquely from the clamping transverse portion II 333 toward a side away from the notch 341. The clamping inclined portion 334 serves as an installation guide for the process of the clamping portion 330 being clamped into the socket 183.

[0160] In some embodiments of the present application, the clamping portions 330 disposed on the first bottom panel 310 and the second bottom panel 320 face in opposite directions and both point to the first partition portion 191 .

[0161] When installing the first bottom panel 310, the first bottom panel 310 is pushed along the bottom opening of the first installation cavity 410 toward the direction close to the first partition portion 191, and relative sliding occurs between the first flange 181 and the second flange 340. The second flange 340 slides along the first flange 181, and the snap-in portion 330 on the first bottom panel 310 snaps into the corresponding socket 183. After the first bottom panel 310 is pushed into place toward the first partition portion 191, the plug-in portion 311 on the first bottom panel 310 is inserted into the first slot 1911. At this time, the connecting flange 370 on the right side of the first bottom panel 310 is in contact with the right side wall of the casing body, and screws are screwed between the two to achieve full fixation of the four sides of the first bottom panel 310.

[0162] When installing the second bottom panel 320, the second bottom panel 320 is pushed along the bottom opening of the second installation cavity 420 toward the direction close to the first partition portion 191, and relative sliding occurs between the first flange 181 and the second flange 340. The second flange 340 slides along the first flange 181, and the snap-on portion 330 on the second bottom panel 320 snaps into the corresponding socket 183. After the second bottom panel 320 is pushed into place toward the first partition portion 191, the second slot 321 on the second bottom panel 320 is plugged into the wall of the first slot 1911. At this time, the connecting flange 370 on the left side of the second bottom panel 320 is in contact with the left side wall of the casing body. Screws are screwed between the two to achieve full fixation of the four sides of the second bottom panel 320.

[0163] In some embodiments of the present application, refer to Fig.24 A fourth flange 360 ​​is provided on the second flange 340, and the fourth flange 360 ​​extends vertically toward one side of the casing body. The fourth flange 360 ​​is used to limit the horizontal displacement of the first flange 181 when the first flange 181 and the second flange 340 slide relative to each other.

[0164] That is to say, when the two bottom panels are installed and pushed toward the first partition portion 191 , the fourth flange 360 ​​acts as a slide and a limiter.

[0165] In some embodiments of the present application, continue to refer to Fig.24 The first flange 181 is provided with a fifth flange 182 extending vertically, and the socket 183 is an L-shaped opening structure provided on the first flange 181 and the fifth flange 182. Fig.19 The socket is large, so that when the bottom panel is lowered from top to bottom onto the casing body, the clamping portion 330 can fall into the socket 183.

[0166] The fifth flange 182 and the side wall of the housing body form a slot structure for installing the insulation layer, which facilitates the installation of the insulation layer. At the same time, the bottom of the front / rear side wall of the housing body forms two bending structures through the first flange 181 and the fifth flange 182, which helps to improve the structural strength.

[0167] In some embodiments of the present application, refer to Fig.17 The plug-in portion 311 includes a plug-in vertical portion 3111, a plug-in horizontal portion 3112, and a plug-in inclined portion 3113 which are connected in sequence. The plug-in vertical portion 3111 vertically extends from the first bottom panel 310 toward one side of the installation cavity, the plug-in horizontal portion 3112 extends horizontally toward the outer side of the first bottom panel 310, and the plug-in inclined portion 3113 extends from the plug-in horizontal portion 3112 toward a direction away from the first bottom panel 310 and toward the outer side of the first bottom panel 310. The plug-in horizontal portion 3112 and the plug-in inclined portion 3113 are inserted into the first slot 1911.

[0168] When installing the first bottom panel 310, after the first panel 310 is pushed in the direction close to the first partition portion 191, the plug-in horizontal portion 3112 and the plug-in inclined portion 3113 can be inserted into the first slot 1911, and the plug-in inclined portion 3113 plays a role in installation guidance, and the plug-in vertical portion 3111 abuts against one end of the first slot 1911. Fig. 22 The figure shows the placement posture during the assembly process. When the fresh air environment control integrated machine is actually used, Fig. 22 By rotating 180°, it can be found that the plug-in transverse portion 3112 is in contact with the bottom wall of the first slot 1911 to form a limit clamping structure in the up-and-down direction.

[0169] In some embodiments of the present application, refer to Fig. 20 and Fig. 22 The first slot 1911 includes a first slot transverse portion I1912, a first slot vertical portion 1913, and a first slot transverse portion II1914 which are connected in sequence, the first slot vertical portion 1913 is connected between the first slot transverse portion I1912 and the first slot transverse portion II1914, the first slot transverse portion I1912 extends horizontally from the bottom of the first partition portion 191 toward the direction of the second installation cavity 420, the first slot vertical portion 1913 extends vertically from the first slot transverse portion I1912, the first slot transverse portion II1914 extends from the first slot vertical portion 1913 toward one side of the first installation cavity 410, the first slot 1911 is a U-shaped slot structure, and the plug-in transverse portion 3112 is in close contact with the first slot transverse portion II1914.

[0170] Reference Fig. 22The second bottom panel 320 is provided with a sixth flange 322 on the side facing the first partition portion 191, and the sixth flange 322 extends vertically from the second bottom panel 320 toward the side of the installation cavity. The second slot 321 is connected to the sixth flange 322, and the sixth flange 322 is in contact with the plug-in vertical portion 3111, so that there is no gap between the first bottom panel 310 and the second bottom panel 320 after they are assembled.

[0171] In some embodiments of the present application, refer to Fig.17 and Fig. 22 The second slot 321 includes a second slot transverse portion I3211, a second slot vertical portion 3212, and a second slot transverse portion II3213. The second slot vertical portion 3212 is connected between the second slot transverse portion I3211 and the second slot transverse portion II3213. The second slot transverse portion II3213 extends horizontally from the sixth flange 322 toward one side of the second installation cavity 420. The second slot transverse portion I3211 extends horizontally from the second slot vertical portion 3212 toward the first installation cavity 410. The second slot 321 is a U-shaped slot structure, and the socket of the second slot 321 faces the first installation cavity 410.

[0172] The second slot 321 also includes a second slot inclined portion 3214, which extends obliquely from the second slot lateral portion I 3211 toward a direction away from the second bottom panel 320 and toward the outer side of the second bottom panel 20 (i.e., toward the first installation cavity 410). The second slot inclined portion 3214 serves as an installation guide during the assembly process of inserting the first slot 1911 into the second slot 321.

[0173] The present invention not only solves the problem of independent disassembly and assembly of two bottom panels, but also solves the technical problem that internal components of the fresh air environment control integrated machine are inconvenient to install.

[0174] In the prior art, in order to improve the thermal insulation performance of the whole machine, an insulation layer is usually provided on the inner side of the casing. During the production and assembly of the whole machine, due to the presence of the insulation layer, when the components are installed into the casing by screws, the screws need to pass through the thick insulation layer to be fixed and installed. The screws are exposed, and the fixation is unreliable. Condensation water is easily generated at the exposed screws. In order to avoid the exposure of the nail tip, some models need to screw from the outside of the casing to the inside. At this time, there is also the problem of condensation water generated at the screws, and it is not convenient to align the screw holes of each component for screwing, resulting in low production efficiency. In addition, most existing casings are single-layer plate structures with low strength.

[0175] The present application solves the problem mentioned in the above paragraph by the following technical means: In some embodiments of the present application, referring to Figures 7 to 11 The casing body includes an upper cover plate 110 , two side plates 120 arranged opposite to each other on the left and right, and an inner cover plate 140 .

[0176] The upper cover plate 110 is a U-shaped structure, which includes an upper cover top plate 111, an upper cover front side plate 112, and an upper cover rear side plate 113 formed by bending a sheet of plate. The upper cover top plate 111 constitutes the top wall of the casing body, the upper cover front side plate 112 constitutes the front side wall of the casing body, and the upper cover rear side plate 113 constitutes the rear side wall of the casing body.

[0177] The two side panels 120 are disposed on the left and right sides of the upper cover 110 to form the left and right walls of the housing body.

[0178] When the whole machine is assembled, the upper cover plate 110 and the left and right side plates 120 are first assembled together to form an installation frame structure, and the upper cover top plate 111 is placed downward, and then the internal partitions, fans, heat exchangers, heat exchange cores and other components are installed in the upper cover top plate 111, and finally the first bottom panel 310 and the second bottom panel 320 are installed. In order to improve the installation convenience and reliability of various internal components, the present application makes the following improvements to the upper cover plate 110: an inner cover plate 140 is arranged on the inner side of the upper cover top plate 111, and a accommodating space is enclosed between the inner cover plate 140 and the upper cover top plate 111, and an insulation layer is arranged in the accommodating space, which is recorded as the insulation layer 160, and a plurality of screw mounting holes are arranged on the inner cover plate 140.

[0179] A double-layer structure is formed between the upper cover top plate 111 and the inner cover plate 140. During assembly, the internal components are directly screwed to the inner cover plate 140, and the screws are screwed from the inside of the casing to the outside. The screws are screwed and installed from the front, which greatly improves the ease of installation and efficiency. The screws are not exposed, which improves the aesthetics of the whole machine and avoids condensation at the exposed screws. The double-layer cover plate structure helps to improve the strength of the casing, and the thermal insulation layer in the double-layer structure also improves the thermal insulation performance of the casing.

[0180] In some embodiments of the present application, refer to Figure 7 and Figure 8 A support portion 150 is provided in the accommodating space, one side of the support portion 150 is fixedly connected to the upper cover top plate 111 by screws, and the other side of the support portion 150 is fixedly connected to the inner cover plate 140 by screws.

[0181] Since the overall area of ​​the inner cover plate 140 is relatively large, the support portion 150 supports the inner cover plate 140 , thereby improving the installation stability of the inner cover plate 140 and preventing the middle area of ​​the inner cover plate 140 from collapsing.

[0182] In some embodiments of the present application, the support portion 150 extends along the length or width direction of the upper cover top plate 111. The support portion 150 divides the accommodating space into multiple sub-areas. An insulation layer is arranged in each sub-area, which improves the installation stability of the inner cover plate 140 and also facilitates the installation of the insulation layer.

[0183] Figure 8 In the structure shown, one support portion 150 is provided, and the support portion 150 extends along the length direction of the upper cover top plate 111 .

[0184] In some embodiments of the present application, refer to Figure 8 The support portion 150 includes an integral U-shaped groove 151 and a groove flange 152 provided at the open top edge of the U-shaped groove 151, the groove flange 152 extends toward the outside of the U-shaped groove 151, the groove bottom of the U-shaped groove 151 is fixedly connected to the upper cover top plate 111 by screws, and the groove flange 152 is fixedly connected to the inner cover plate 140 by screws.

[0185] Reference Figure 8 The U-shaped groove 151 divides the accommodating space into a first sub-area 171 and second sub-areas 172 located on both sides of the first sub-area 171. The first sub-area 171 is the notch area surrounded by the U-shaped groove 151 itself. The insulation layer 160 is arranged in the first sub-area 171 and the two second sub-areas 172, and the notch flange 152 is in contact with the insulation layer 160 located in the second sub-area 172.

[0186] The notch flange 152 facilitates the fixed connection between the support portion 150 and the inner cover plate 140 on the one hand, and serves to limit the built-in thermal insulation layer on the other hand.

[0187] The insulation layer 160 in the accommodation space does not need to be glued. During assembly, the glue-free insulation layer 160 can be directly placed in the first sub-area 171 and the second sub-area 172. At this time, the groove flange 152 plays a limiting role on the insulation layer in the two second sub-areas 172, and then the inner cover plate 140 is installed. The insulation layer 160 is finally limited in the accommodation space through the inner cover plate 140. The setting of the glue-free insulation layer also further improves the installation efficiency.

[0188] In some embodiments of the present application, refer to Fig.11 An extension plug 153 is provided on the groove wall at one end of the U-shaped groove 151, and a socket (not marked) is correspondingly provided on the inner cover plate 140. The extension plug 153 is inserted into the socket. When installing the support part 150, the extension plug 153 is first inserted into the socket to preliminarily position the support part 150, and then the support part 150 is fixed by screws for easy installation.

[0189] In some embodiments of the present application, refer to Fig.10 The inner cover flange 141 is provided on the four sides of the inner cover plate 140, and the inner cover flange 141 extends toward one side of the upper cover top plate 111, that is, the inner cover flange 141 extends upward, and the inner cover flange 141 abuts against the upper cover top plate 111. The inner cover flange 141 is fixedly connected to the circumferential side wall of the casing 100 by screws to realize the fixed installation of the inner cover plate 140, and screws are screwed on the circumferential outer side for easy installation.

[0190] In some embodiments of the present application, refer to Figure 7 The inner cover plate 140 is provided with a handle 142 , and the handles 142 have two handles 142 symmetrically arranged on both sides of the inner cover plate 140 , and the handles 142 are convenient for holding the inner cover plate 140 for transportation and installation.

[0191] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fresh air environment control integrated machine, characterized in that: include: a housing, wherein a mounting cavity is formed; a partition assembly, which is arranged in the installation cavity, and divides the installation cavity into a first installation cavity, a second installation cavity, and a third installation cavity which are sequentially arranged along the length direction of the installation cavity, the second installation cavity is divided into an inner circulation fan cavity and a fresh air fan cavity which are sequentially arranged along the width direction of the installation cavity, the third installation cavity is divided into an inner circulation air heat exchanger cavity and a fresh air heat exchanger cavity which are sequentially arranged along the width direction of the installation cavity, and a heat exchange core is arranged in the first installation cavity; The housing is provided with an exhaust air inlet communicating with the first installation cavity and an internal circulation air inlet communicating with the internal circulation fan cavity; There are three internal circulation air inlets, one of which is arranged at the side of the casing, and the other two are arranged at the bottom of the casing, and are connected to the internal circulation fan cavity and the fresh air fan cavity one by one; There are two exhaust inlets, one is arranged at the side of the housing, and the other is arranged at the bottom of the housing; The partition assembly comprises a partition portion, the partition portion divides the installation cavity into a first installation area and a second installation area sequentially arranged along the length direction thereof, a first slot is provided at the bottom of the partition portion, the insertion opening of the first slot faces the first installation area, and a wall surrounding the first slot protrudes toward one side of the second installation area; The casing comprises a casing body and a bottom panel, wherein the casing body encloses a mounting cavity with an open bottom, and the bottom panel comprises a first bottom panel and a second bottom panel; The first bottom panel is arranged at the bottom opening of the first installation area, and is provided with an inserting portion, and the inserting portion is inserted into the first slot; The second bottom panel is arranged at the bottom opening of the second installation area, and is provided with a second slot, and the wall surrounding the first slot is inserted into the second slot; The plug-in portion, the first slot and the second slot overlap each other; The bottoms of the two side walls of the housing body located at the front and rear sides thereof are respectively provided with first flanges, and the first flanges are provided with sockets; The first bottom panel and the second bottom panel are provided with second flanges on their front and rear sides, respectively, and the second flanges are provided with a snap-fitting portion, the first flange abuts against the second flange, and the snap-fitting portion snaps into the corresponding socket; The installation process of the first bottom panel and the second bottom panel includes: Drop the two bottom panels downward to the top of the housing body, so that the clamping portion on the first bottom panel is clamped with the corresponding socket, the plugging portion on the first bottom panel is inserted into the first slot, and the right side of the first bottom panel is fixed to the right side wall of the housing body; The clamping portion on the second bottom panel is clamped with the corresponding socket, and the second slot on the second bottom panel is plugged with the wall of the first slot, so as to fix the left side of the second bottom panel with the left side wall of the housing body; The structural arrangement of the snap-fitting portion and the socket enables the snap-fitting portion to fall into the corresponding socket when the two bottom panels are placed on the top of the casing body from top to bottom, and then the two bottom panels can be pushed in the horizontal direction to achieve reliable snap-fitting between the snap-fitting portion and the socket.

2. The fresh air environment control integrated machine according to claim 1, characterized in that: When the fresh air environment control integrated machine adopts the side return air mode, the internal circulation air inlet and the exhaust air inlet arranged at the side are opened, and the internal circulation air inlet and the exhaust air inlet arranged at the bottom are closed; When the fresh air environment control integrated machine adopts the lower return air mode, the inner circulation air inlet and the exhaust air inlet arranged at the bottom are opened, and the inner circulation air inlet and the exhaust air inlet arranged at the side are closed.

3. The fresh air environment control integrated machine according to claim 1, characterized in that: The partition assembly includes a first partition portion, a second partition portion, a third partition portion and a fourth partition portion; The first partition plate portion and the second partition plate portion are arranged at intervals along the length direction of the installation cavity, dividing the installation cavity into a first installation cavity, a second installation cavity and a third installation cavity; The third partition part is arranged in the second installation cavity, dividing the second installation cavity into an internal circulation fan cavity and a fresh fan cavity, and the third partition part is provided with a first damper; The fourth partition portion is arranged in the third installation cavity, and divides the third installation cavity into an internal circulation air heat exchanger cavity and a fresh air heat exchanger cavity; The first installation cavity is separated by a partition into a fresh air inlet side duct, a fresh air outlet side duct, an exhaust air inlet side duct, and an exhaust air outlet side duct corresponding to the four side ducts of the heat exchange core, and the exhaust air inlet is connected to the exhaust air inlet side duct; The first partition portion is provided with a second air door for connecting the fresh air outlet side air duct and the fresh air machine cavity; The casing is provided with a fresh air inlet connected to the fresh air inlet side air duct, an exhaust air outlet connected to the exhaust outlet side air duct, a fresh air outlet connected to the fresh air heat exchanger cavity, and an internal circulation air outlet connected to the internal circulation air heat exchanger cavity.

4. The fresh air environment control integrated machine according to claim 1, characterized in that: The first bottom panel and the second bottom panel are respectively provided with maintenance openings.

5. The fresh air environment control integrated machine according to claim 4 is characterized in that: The first bottom panel and the second bottom panel are provided with third flanges on their front and rear sides, respectively, and the third flanges extend vertically toward a side close to the housing body; The second flange extends horizontally from the third flange toward the inner side of the installation cavity, and a notch is provided on the second flange, and the notch is open toward one side of the installation cavity; The clamping part is arranged at the notch, and the clamping part comprises a clamping transverse part I, a clamping vertical part, and a clamping transverse part II which are connected in sequence, and the extending direction of the clamping transverse part I and the clamping transverse part II are both the same as the extending direction of the second flange, and the clamping vertical part is connected between the clamping transverse part I and the clamping transverse part II, and the clamping transverse part I extends from one side of the notch toward the center of the notch, and the clamping vertical part extends toward a side close to the first flange; One side of the socket abuts against the clamping vertical portion, the second flange abuts against the bottom side of the first flange, and the clamping transverse portion II abuts against the upper side of the first flange.

6. The fresh air environment control integrated machine according to claim 5, characterized in that: The clamping parts provided on the first bottom panel and the second bottom panel are oriented in opposite directions and both point to the partition part; The first bottom panel is pushed along the bottom opening of the first installation area toward the direction close to the partition portion, so that the first flange and the second flange slide relative to each other, and the clamping portion on the first bottom panel is clamped with the corresponding socket, and the plug-in portion is inserted into the first slot; The second bottom panel is pushed along the bottom opening of the second installation area toward the partition portion, and relative sliding occurs between the first flange and the second flange. The snap-fitting portion on the second bottom panel is snap-fitted with the corresponding socket, and the second slot is plugged into the wall of the first slot.

7. The fresh air environment control integrated machine according to any one of claims 4 to 6, characterized in that: The first flange is provided with a fifth flange extending vertically, the socket is an L-shaped opening structure provided on the first flange and the fifth flange, and a slot structure for installing the insulation layer is formed between the fifth flange and the side wall of the casing body.

8. The fresh air environment control integrated machine according to any one of claims 4 to 6, characterized in that: The plug-in portion includes a plug-in vertical portion, a plug-in horizontal portion, and a plug-in inclined portion connected in sequence, wherein the plug-in vertical portion vertically extends from the first bottom panel toward one side of the installation cavity, the plug-in horizontal portion horizontally extends toward the outer side of the first bottom panel, and the plug-in inclined portion extends from the plug-in horizontal portion toward a direction away from the first bottom panel and toward the outer side of the first bottom panel; The plug-in transverse portion and the plug-in inclined portion are plug-in arranged in the first slot.

9. The fresh air environment control integrated machine according to claim 8, characterized in that: The first slot includes a first slot transverse portion I, a first slot vertical portion, and a first slot transverse portion II which are connected in sequence, the first slot vertical portion is connected between the first slot transverse portion I and the first slot transverse portion II, and the first slot transverse portion I extends horizontally from the bottom of the partition portion toward the second mounting area; The second bottom panel is provided with a sixth flange on a side facing the partition portion, the sixth flange vertically extending from the second bottom panel toward a side of the installation cavity, the second slot is connected to the sixth flange, and the sixth flange is in contact with the plug-in vertical portion.

10. The fresh air environment control integrated machine according to claim 1, characterized in that: An inner cover plate is arranged on the inner side of the top wall of the casing body, and a receiving space is enclosed between the top wall of the casing body and the inner cover plate. A heat preservation layer is arranged in the receiving space, and a plurality of screw mounting holes are arranged on the inner cover plate.

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