Low-noise fresh air cabinet with good mute effect

Abstract

The utility model relates to the technical field of fresh air machines, and provides a low-noise fresh air machine cabinet with a good mute effect, which comprises a machine cabinet, a fixed plate fixedly arranged on one side of the inner bottom wall of the machine cabinet, a spring and a damping rod which are fixedly arranged on the top of the fixed plate in a crossed way, and a buffer plate which is fixedly arranged at the top ends of the spring and the damping rod together, and a fan shell and a mounting shell are oppositely and fixedly mounted at the top of the buffer plate. When the motor drives the blades to rotate, noise is caused by vibration generated by the motor, vibration force generated when the motor drives the blades to operate is effectively buffered and counteracted through cooperation of a spring, a damping rod and second sound insulation cotton, and noise is effectively prevented from being generated; through cooperation of the air inlet damper, the air outlet damper and the first sound insulation cotton, the wind sound of the blades is effectively buffered, the wind sound is effectively prevented from spreading outwards, the dampers can further reduce swing and vibration of the air port, the service life of the air conditioner system is prolonged, and the comfort level and experience of a user are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a new fan technical field, concretely relates to a low noise new fan cabinet with good mute effect. BACKGROUND

[0002] In order to improve the air quality in the room, the measures mainly used at present mainly have two kinds: indoor air purification, such as through air purifier etc. ; Indoor and outdoor air exchange, such as through new fan etc. Among them, indoor air purification is only the circulation of indoor air, and the composition (such as oxygen content, carbon dioxide content etc.) of indoor air cannot be changed. Indoor and outdoor air exchange is to change the composition (such as oxygen content, humidity, carbon dioxide content etc.) of indoor air by forcedly replacing part of indoor air to outdoor.

[0003] For example, the publication number CN205641230U proposes a low noise new fan cabinet, including cabinet, filter cavity, air chamber and sound absorbing board, the cabinet is provided with an air inlet cavity below, the filter cavity is arranged in the middle part of the cabinet and is located above the air inlet cavity, the air chamber is located above the filter cavity, a fan is arranged in the air chamber, the sound absorbing board is arranged above the fan, the sound absorbing board has two pieces, two pieces of sound absorbing board are arranged in parallel above the fan, and two pieces of sound absorbing board are respectively installed on the corresponding two inner walls in the air chamber, and two pieces of sound absorbing board partially overlap in the projection direction. The utility model discloses two pieces of sound absorbing board in the air chamber, and two pieces of sound absorbing board are arranged in two layers and partially overlap, so that the noise produced by the fan in the air chamber can be absorbed twice, the sound absorption efficiency is greatly improved, and the mute effect is improved.

[0004] However, in the implementation of the related technology, the above-mentioned low noise new fan cabinet has the following problems: it is difficult to buffer and offset the vibration force generated by the motor driving blade operation, which causes the vibration force of the motor to impact the cabinet and produce noise, and effectively buffers the wind sound of the blade, which causes the swing and vibration wind sound to spread outward, which easily reduces the service life and the comfort of user experience, therefore, a low noise new fan cabinet with good mute effect is proposed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a low noise new fan cabinet with good mute effect, which solves the problems in the related art that it is difficult to buffer and offset the vibration force generated by the motor driving blade operation, which causes the vibration force of the motor to impact the cabinet and produce noise, and effectively buffers the wind sound of the blade, which causes the swing and vibration wind sound to spread outward, which easily reduces the service life and the comfort of user experience.

[0006] The utility model discloses a technical scheme as follows: A low-noise fresh air machine cabinet with good mute effect, comprising: a cabinet, a fixed plate fixedly installed on one side of the inner bottom wall of the cabinet, a spring and a damping rod cross-fixedly installed on the top of the fixed plate, a buffer plate fixedly installed on the top end of the spring and the damping rod, a fan shell and a mounting shell fixedly installed on the top of the buffer plate, a motor fixedly installed in the mounting shell, and a synchronous wheel I fixedly connected to the output end of the motor.

[0007] A blade is rotatably connected to the inside of the fan shell, one end of the blade is movably penetrated through the fan shell and fixedly connected with a synchronous wheel II, and the synchronous wheel II and the synchronous wheel I are connected through a synchronous belt.

[0008] The outer wall of the cabinet is covered with soundproof cotton I, and the outer wall of the mounting shell is covered with soundproof cotton II.

[0009] Preferably, an air inlet damper is fixedly installed at the inlet of the cabinet, and an air outlet damper is fixedly installed at the outlet of the cabinet.

[0010] Preferably, the inside of the cabinet is sequentially provided with a primary filter, a medium filter, a cooling coil and a heating wire.

[0011] Preferably, the heating wire is located between the cooling coil and the fixed plate, and the cooling coil is located between the heating wire and the medium filter.

[0012] Preferably, the medium filter is located between the heating wire and the primary filter, and the primary filter is located on one side of the medium filter.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] When the motor drives the blade to rotate, the motor itself will produce vibration, resulting in noise. Through the cooperation between the spring, the damping rod and the soundproof cotton II, the vibration force generated by the motor driving the blade to run can be effectively buffered and offset, effectively preventing the noise from being emitted. Through the cooperation between the air inlet damper, the air outlet damper and the soundproof cotton I, the wind sound of the blade can be effectively buffered, effectively preventing the wind sound from spreading outward. The damper can also reduce the swing and vibration of the air inlet, prolong the service life of the air conditioning system, and improve the comfort and experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0016] Figure 1 The utility model provides an overall three-dimensional structure schematic diagram;

[0017] Figure 2The utility model provides first kind of machine cabinet's cross section solid structure schematic diagram;

[0018] Figure 3 The utility model provides second kind of machine cabinet's cross section solid structure schematic diagram;

[0019] Figure 4 The utility model provides soundproof cotton one's cross section solid structure schematic diagram;

[0020] Figure 5 The utility model provides soundproof cotton two's cross section solid structure schematic diagram;

[0021] In the drawing: 1, machine cabinet, 2, fixed plate, 3, spring, 4, damping rod, 5, shell, 6, installation shell, 7, motor, 8, synchronous wheel one, 9, vane, 10, synchronous wheel two, 11, air inlet damper, 12, air outlet damper, 13, primary filter, 14, medium efficiency filter, 15, cooling coil, 16, heating wire, 17, soundproof cotton one, 18, soundproof cotton two, 19, buffer plate. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0023] Embodiment one

[0024] Please refer to Figure 1 - Figure 5 A low-noise fresh air cabinet with good mute effect, comprising: a machine cabinet 1, a fixed plate 2 fixedly installed on one side of the bottom wall in the machine cabinet 1, springs 3 and damping rods 4 cross-fixedly installed on the top of the fixed plate 2, a buffer plate 19 fixedly installed on the top of the springs 3 and the damping rods 4, a fan shell 5 and an installation shell 6 fixedly installed on the top of the buffer plate 19, a motor 7 fixedly installed in the installation shell 6, and a synchronous wheel one 8 fixedly connected to the output end of the motor 7.

[0025] A vane 9 is rotatably connected in the fan shell 5, and a synchronous wheel two 10 is fixedly connected to one end of the vane 9 and movably penetrates the fan shell 5, and the synchronous wheel two 10 and the synchronous wheel one 8 are connected through a synchronous belt.

[0026] The outer wall of the machine cabinet 1 is covered with soundproof cotton one 17, and the outer wall of the installation shell 6 is covered with soundproof cotton two 18.

[0027] The air inlet damper 11 is fixedly installed at the inlet of the cabinet 1, and the air outlet damper 12 is fixedly installed at the outlet of the cabinet 1.

[0028] The low-noise fresh air cabinet with good mute effect is used, the motor 7 is started, the motor 7 drives the synchronous wheel one 8 to rotate, the synchronous wheel two 10 is driven to rotate under the action of the synchronous belt, and the blade 9 rotates in the inside of the fan shell 5, and the cabinet 1 is ventilated.

[0029] When the motor 7 drives the blade 9 to rotate, noise is generated due to vibration of the motor 7, the spring 3, the damping rod 4 and the soundproof cotton two 18 are matched, vibration force generated during operation of the motor 7 and the blade 9 is effectively buffered and offset, and noise is effectively avoided.

[0030] The air inlet damper 11, the air outlet damper 12 and the soundproof cotton one 17 are matched, the wind sound of the blade 9 is effectively buffered, and wind sound is effectively prevented from being transmitted outward.

[0031] The air inlet damper 11 and the air outlet damper 12 mainly control opening and closing speed and strength, reduce turbulence and vortex during air flow, thereby reducing noise, the damper can make air flow smoothly and stably through the air outlet, reduce the flow rate of air in the air duct, and further reduce the generation of noise, in addition, the damper can also reduce the swing and vibration of the air outlet, prolong the service life of the air conditioning system, and improve the comfort and experience of users.

[0032] Embodiment two

[0033] Based on the embodiment one, in the embodiment, the inside of the cabinet 1 is sequentially provided with the primary filter 13, the medium filter 14, the cooling coil 15 and the heating wire 16, the heating wire 16 is located between the cooling coil 15 and the fixed plate 2, the cooling coil 15 is located between the heating wire 16 and the medium filter 14, the medium filter 14 is located between the heating wire 16 and the primary filter 13, and the primary filter 13 is located on one side of the medium filter 14.

[0034] The technical scheme provided in the embodiment is that: the primary filter 13 is used for preliminarily filtering large particles in the air entering the air inlet damper 11, and effectively blocks large particle impurities in the air;

[0035] The medium filter 14 is used for filtering small particles that are not filtered by the medium filter 14, effectively blocks small particle impurities in the air, and effectively improves air quality.

[0036] The cooling coil 15 is used for connecting external refrigeration equipment, effectively cools the air, and is convenient for use in summer.

[0037] The heating wire 16 is used for heating air, effectively solves the winter heating use, and has the advantages of fast heating and high heating efficiency.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-noise fresh air cabinet with good noise reduction effect, characterized in that, include: A cabinet (1), a fixed plate (2) fixedly installed on one side of the bottom wall of the cabinet (1), a spring (3) and a damping rod (4) fixedly installed on the top of the fixed plate (2) in a cross manner, and a buffer plate (19) fixedly installed on the top of the spring (3) and the damping rod (4). A fan housing (5) and a mounting shell (6) are fixedly installed on the top of the buffer plate (19). A motor (7) is fixedly installed inside the mounting shell (6). A synchronous pulley (8) is fixedly connected to the output end of the motor (7). The fan housing (5) is rotatably connected to a blade (9). One end of the blade (9) is movably connected through the fan housing (5) and is fixedly connected to a second synchronous pulley (10). The second synchronous pulley (10) and the first synchronous pulley (8) are connected by a synchronous belt. The outer wall of the cabinet (1) is covered with sound insulation cotton one (17), and the outer wall of the mounting shell (6) is covered with sound insulation cotton two (18).

2. The low-noise fresh air cabinet with good quiet operation according to claim 1, characterized in that: An air inlet damper (11) is fixedly installed at the entrance of the cabinet (1), and an air outlet damper (12) is fixedly installed at the exit of the cabinet (1).

3. The low-noise fresh air cabinet with good quiet operation according to claim 1, characterized in that: The cabinet (1) is equipped with a primary filter (13), a secondary filter (14), a cooling coil (15), and a heating wire (16) in sequence.

4. The low-noise fresh air cabinet with good quiet operation according to claim 3, characterized in that: The heating wire (16) is located between the cooling coil (15) and the fixed plate (2), and the cooling coil (15) is located between the heating wire (16) and the medium-efficiency filter (14).

5. A low-noise fresh air cabinet with good quiet operation according to claim 4, characterized in that: The medium-efficiency filter (14) is located between the heating wire (16) and the primary filter (13), with the primary filter (13) located on one side of the medium-efficiency filter (14).

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