Air conditioner ventilation system with noise reduction and sound insulation structure

Abstract

The utility model relates to the technical field of air conditioner ventilation, in particular to an air conditioner ventilation system with a noise reduction and sound insulation structure, which comprises an indoor unit shell, an impeller fan is mounted on the inner wall of one side of the indoor unit shell, evaporators are arranged on the left side and the right side of the impeller fan, and a refrigerant pipe A is inserted into one end of each evaporator. The other end of the refrigerant pipe A is connected to the inlet end of the compressor in an inserted mode, the outlet end of the compressor is connected to the inlet end of the condenser in an inserted mode, the outlet end of the condenser is connected with the refrigerant pipe B in an inserted mode, the other end of the refrigerant pipe B is connected to the inlet end of the expansion valve in an inserted mode, and a damping support is arranged at the bottom of the compressor. According to the improved ventilation system, multi-dimensional noise reduction can be achieved through the sound insulation cotton, vibration generated by mechanical parts can be buffered and loss can be reduced through the damping support and the damping support, the refrigerant pipe A and the refrigerant pipe B are corrugated hoses, the stability can be improved and faults can be prevented through flexible connection of the corrugated hoses, and the sawtooth-shaped flow deflectors can optimize airflow and reduce whistling sound at the same time.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning and ventilation technology, specifically to an air conditioning and ventilation system with noise reduction and sound insulation structure. Background Technology

[0002] Air conditioning and ventilation systems are functional devices that regulate the indoor environment through air circulation. Their main function is to establish airflow paths between indoor and outdoor areas or between different zones, regulate air temperature and humidity parameters through heat exchange mechanisms, and maintain reasonable airflow organization to meet indoor comfort or specific operational requirements. At its core, it achieves continuous optimization of air quality within a space through systematic airflow design, and is a fundamental component of building environmental control and air conditioning equipment operation.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] Existing air conditioning and ventilation systems have insufficient noise control. Vibrations generated by components such as compressors and fans during operation can easily be transmitted to the casing through rigid structures, generating noise. Furthermore, the rigid connections of refrigerant pipes are prone to pipe damage or abnormal noise due to vibration. At the same time, turbulent airflow at the air outlet can easily produce whistling sounds. Utility Model Content

[0005] The purpose of this invention is to provide an air conditioning ventilation system with a noise reduction and sound insulation structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air conditioning ventilation system with a noise reduction and sound insulation structure, including an indoor unit casing. An impeller fan is installed on one inner wall of the indoor unit casing. Evaporators are provided on the left and right sides of the impeller fan. A refrigerant pipe A is inserted into one end of the evaporator, and the other end of the refrigerant pipe A is inserted into the inlet end of the compressor. The outlet end of the compressor is inserted into the inlet end of the condenser. A refrigerant pipe B is inserted into the outlet end of the condenser, and the other end of the refrigerant pipe B is inserted into the inlet end of the expansion valve. A shock-absorbing support is provided at the bottom of the compressor. The bottom end of the shock-absorbing support is screwed to one side of the bottom wall of the outdoor unit casing. Shock-absorbing brackets are provided on the inner walls of the left and right sides of the outdoor unit casing. A cooling fan is snapped onto the front side of the shock-absorbing bracket. A silencer pipe is installed on the section of refrigerant pipe A and refrigerant pipe B near the outdoor unit casing.

[0007] More preferably, the inner wall sandwich between the indoor unit casing and the outdoor unit casing is filled with sound insulation cotton.

[0008] More preferably, the air outlet of the indoor unit casing is provided with a guide vane, and the front end of the guide vane is serrated.

[0009] More preferably, refrigerant pipe A and refrigerant pipe B are corrugated hoses, and the silencer pipe has a Z-shaped baffle inside.

[0010] More preferably, the bottom corners of the shock-absorbing support are provided with shock-absorbing rubber pads A.

[0011] More preferably, the shock-absorbing bracket includes two sets of fixed frames, four connecting rods are provided on opposite sides of the two sets of fixed frames, shock-absorbing springs are provided on the inner walls of the connecting rods, and a bracket is provided at the opposite ends of the four connecting rods. A cooling fan is clamped to the inner wall of the bracket, and a shock-absorbing rubber pad B is provided at one end of the fixed frame that is screwed to the inner walls of the left and right sides of the outdoor unit housing.

[0012] More preferably, the edges of the cooling fan blades are provided with a rubber edge layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By using sound insulation cotton, serrated air guide vanes, rubber fan blades, Z-shaped baffles for silencers, and corrugated hoses, mechanical, airflow, and fluid noise is reduced from multiple dimensions. Among them, the vibration damping supports and brackets can buffer the vibrations generated by the compressor and cooling fan, thereby reducing transmission and component wear. The refrigerant pipes A and B are made into corrugated hoses, whose flexible connection can improve system stability and adapt to deformation to prevent failure. At the same time, the serrated air guide vanes can optimize airflow, deliver air evenly, and reduce whistling noise. With the cooperation of all components, while ensuring cooling efficiency, high-efficiency noise reduction and stable operation are achieved through vibration control, noise blocking, and airflow optimization. Attached Figure Description

[0015] Figure 1 This is a top view sectional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the condenser structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the silencer pipe structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the shock absorber bracket structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the indoor unit casing structure of this utility model.

[0020] In the diagram: 1. Indoor unit casing; 101. Guide vane; 2. Impeller fan; 3. Evaporator; 4. Refrigerant pipe A; 5. Compressor; 6. Condenser; 7. Refrigerant pipe B; 8. Expansion valve; 9. Vibration damping bracket; 901. Vibration damping pad A; 10. Outdoor unit casing; 11. Vibration damping bracket; 1101. Fixing frame; 1102. Connecting rod; 1103. Vibration damping spring; 1104. Card holder; 1105. Vibration damping pad B; 12. Cooling fan; 13. Silencer pipe; 1301. Z-shaped partition. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: an air conditioning ventilation system with noise reduction and sound insulation structure, including an indoor unit casing 1, an impeller fan 2 installed on one inner wall of the indoor unit casing 1, evaporators 3 on the left and right sides of the impeller fan 2, a refrigerant pipe A4 inserted into one end of the evaporator 3, the other end of the refrigerant pipe A4 inserted into the inlet end of the compressor 5, the outlet end of the compressor 5 inserted into the inlet end of the condenser 6, a refrigerant pipe B7 inserted into the outlet end of the condenser 6, the other end of the refrigerant pipe B7 inserted into the inlet end of the expansion valve 8, a shock-absorbing support 9 at the bottom of the compressor 5, the bottom end of the shock-absorbing support 9 screwed to one side of the bottom wall of the outdoor unit casing 10, shock-absorbing brackets 11 on the left and right inner walls of the outdoor unit casing 10, a cooling fan 12 snapped onto the front side of the shock-absorbing bracket 11, and a silencer pipe 13 installed on the section of the refrigerant pipe A4 and refrigerant pipe B7 near the outdoor unit casing 10.

[0023] In this embodiment, as Figure 1 and Figure 5 As shown, the inner wall sandwich of the indoor unit casing 1 and the outdoor unit casing 10 is filled with sound insulation cotton.

[0024] In this embodiment, as Figure 1 and Figure 5 As shown, a guide vane 101 is provided at the air outlet of the indoor unit casing 1, and the front end of the guide vane 101 is serrated.

[0025] In this embodiment, as Figure 2 and Figure 3 As shown, refrigerant pipes A4 and B7 are corrugated hoses, and the interior of the silencer pipe 13 is equipped with a Z-shaped baffle 1301.

[0026] In this embodiment, as Figure 4 As shown, damping pads A901 are provided at the four corners of the bottom of the damping support 9.

[0027] In this embodiment, as Figure 4 As shown, the shock-absorbing bracket 11 includes two sets of fixed frames 1101. Four connecting rods 1102 are provided on opposite sides of the two sets of fixed frames 1101. Shock-absorbing springs 1103 are provided on the inner walls of the connecting rods 1102. Card seats 1104 are provided on opposite ends of the four connecting rods 1102. Cooling fans 12 are snapped into the inner walls of the card seats 1104. Shock-absorbing rubber pads B1105 are provided at one end of the fixed frame 1101 that is screwed to the inner walls of the left and right sides of the outdoor unit housing 10.

[0028] In this embodiment, as Figure 4 As shown, the edges of the blades of the cooling fan 12 are made of rubber.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the air conditioning ventilation system with noise reduction and sound insulation structure operates as follows during use:

[0030] First, when the user triggers the start command, the air conditioning control system activates the impeller fan 2 inside the indoor unit casing 1, causing it to pre-start at low speed. Simultaneously, the refrigerant passage of the evaporator 3 opens. The evaporators 3 on both sides of the impeller fan 2 are connected to the compressor 5 via refrigerant pipes A4. The flexible structure of the corrugated hoses naturally adapts to minor pipe vibrations to reduce start-up impact noise. After the impeller fan 2 stabilizes, the compressor 5 starts, delivering low-temperature, low-pressure gaseous refrigerant from the evaporator 3 through refrigerant pipes A4 into the compressor 5. The compressor 5 then compresses this refrigerant into high-temperature, high-pressure gaseous refrigerant. During this process, the shock-absorbing supports 9 located at the bottom of the compressor 5 absorb the shock through the shock-absorbing rubber pads A901 at the four corners of the bottom. Vibration is absorbed because the screwed structure between the compressor 5 and the bottom wall of the outdoor unit casing 10 can further fix it to reduce the transmission of vibration to the outdoor unit casing 10. Subsequently, the high-temperature and high-pressure refrigerant at the outlet of the compressor 5 will continue to be delivered to the condenser 6 through the plugged refrigerant pipe A4. At the same time, the cooling fan 12 is triggered to start. The cooling fan 12 is softly connected to the inner wall of the indoor unit casing 1 through the shock-absorbing rubber pad B1105 at the tail end of the fixed frame 1101, and the four connecting rods 1102 are equipped with shock-absorbing springs 1103. During the start-up process of the cooling fan 12, the radial vibration generated when the cooling fan 12 rotates can be buffered. At the same time, the rubber side of its fan blade edge can simultaneously reduce the high-frequency noise of the fan blade friction with the air.

[0031] During the formal operation of the refrigeration cycle, the high-temperature, high-pressure gaseous refrigerant enters the condenser 6 and releases heat under the airflow of the cooling fan 12, gradually liquefying into high-pressure liquid refrigerant. During this period, the silencer pipe 13 of the refrigerant pipe A4 and refrigerant pipe B7 near the outdoor unit casing 10 starts working simultaneously. Its internal Z-shaped baffle 1301 divides the high-speed flowing refrigerant into multiple paths, thereby reducing fluid turbulence noise through the labyrinth structure. When the liquid refrigerant flows into the expansion valve 8 through the refrigerant pipe B7, it will become a low-temperature, low-pressure gas-liquid mixture of refrigerant through the throttling effect of the valve port and return to the evaporator 3 of the indoor unit. At this time, the flexibility of the corrugated hose allows the refrigerant pipe B7 to swing slightly near the expansion valve 8. To avoid vibration noise caused by rigid connections, during this process, the low-temperature, low-pressure refrigerant evaporates in the evaporator 3 and absorbs heat from the flowing indoor air. At this time, the impeller fan 2 can be accelerated to the set speed, and the indoor air is drawn in from the air inlet and forced to blow through the evaporator 3. The cooled air is then blown out from the air outlet after the flow direction is adjusted by the guide vane 101. During this process, the serrated structure at the front end of the guide vane 101 can disrupt the regular fluctuations of the airflow boundary layer and disperse the concentrated airflow into fine streams to reduce the whistling sound at the air outlet. At the same time, the sound insulation cotton sandwiched between the inner walls of the indoor unit casing 1 and the outdoor unit casing 10 will continuously absorb mechanical vibration noise and airflow noise during the operation of the air conditioning system to reduce the transmission to the outside.

[0032] Throughout the process, each component operates sequentially according to the logic of start-up, circulation, adjustment, and shutdown. Through a collaborative mechanism of vibration control, noise isolation, and airflow optimization, the cooling efficiency and noise reduction effect are improved simultaneously.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air conditioning ventilation system with a noise reduction and sound insulation structure, comprising an indoor unit casing (1), characterized in that: An impeller fan (2) is installed on one inner wall of the indoor unit casing (1). Evaporators (3) are provided on the left and right sides of the impeller fan (2). One end of the evaporator (3) is connected to a refrigerant pipe A (4), and the other end of the refrigerant pipe A (4) is connected to the inlet end of the compressor (5). The outlet end of the compressor (5) is connected to the inlet end of the condenser (6). The outlet end of the condenser (6) is connected to a refrigerant pipe B (7). The other end of the refrigerant pipe B (7) is connected to the condenser (6). The compressor (5) is connected to the inlet end of the expansion valve (8). The bottom of the compressor (5) is provided with a shock-absorbing support (9). The bottom end of the shock-absorbing support (9) is screwed to one side of the bottom wall of the outdoor unit housing (10). The inner walls of the left and right sides of the outdoor unit housing (10) are provided with shock-absorbing brackets (11). The front side of the shock-absorbing bracket (11) is clamped with a cooling fan (12). The section of the refrigerant pipe A (4) and refrigerant pipe B (7) near the outdoor unit housing (10) is equipped with a silencer pipe (13).

2. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The inner wall interlayer of the indoor unit housing (1) and the outdoor unit housing (10) is filled with sound insulation cotton.

3. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The indoor unit housing (1) has a guide vane (101) at the air outlet, and the front end of the guide vane (101) is serrated.

4. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The refrigerant pipe A (4) and refrigerant pipe B (7) are corrugated hoses, and the silencer pipe (13) is provided with a Z-shaped baffle (1301) inside.

5. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The damping support (9) is provided with damping rubber pads A (901) at the four corners of its bottom end.

6. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The shock-absorbing bracket (11) includes two sets of fixed frames (1101). Four connecting rods (1102) are provided on opposite sides of the two sets of fixed frames (1101). The inner wall of the connecting rods (1102) is provided with shock-absorbing springs (1103). The opposite ends of the four connecting rods (1102) are provided with brackets (1104). The inner wall of the brackets (1104) is fitted with a cooling fan (12). One end of the fixed frame (1101) is screwed to the inner wall of the left and right sides of the outdoor unit housing (10) and is provided with shock-absorbing rubber pads B (1105).

7. The air conditioning ventilation system with noise reduction and sound insulation structure according to claim 1, characterized in that: The blades of the cooling fan (12) are edged with rubber.

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