Refrigerator capable of effectively reducing operation noise

Abstract

The utility model relates to a freezer capable of effectively reducing operation noise, which comprises a freezer main body, a refrigeration chamber, a compressor and a silencer, the refrigeration chamber is arranged at the central position in the freezer main body, shelves are uniformly distributed in the refrigeration chamber, a first cavity is arranged at the bottom end in the freezer main body, the compressor is arranged in the first cavity, and the silencer is arranged in the first cavity. The exhaust end of the compressor is connected with a silencer, a baffle is arranged in the silencer, a second cavity is formed in one side of the interior of the refrigerator body, a condenser is arranged in the second cavity, the end, away from the compressor, of the silencer is connected with the condenser, and the top end of the condenser is connected with an evaporator through a capillary tube. According to the refrigerator, the refrigerator body, the first cavity, the compressor and the silencer are installed, noise is attenuated after airflow exhausted by the compressor passes through the porous baffle in the silencer, the purpose of silencing is achieved, and the performance of the whole refrigerator is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerating cabinets and other related equipment, and in particular to a refrigerating cabinet which can effectively reduce operating noise. Background Art

[0002] With the improvement of living standards, deep-freeze quick-freezer products are becoming more and more popular. Since the exhaust pressure inside the deep-freezer is relatively high, the whole machine resonates, and the noise directly affects the product experience. Therefore, how to reduce the noise during the operation of the freezer has always been a difficult problem for various manufacturers to solve.

[0003] There are basically three methods to reduce refrigerator noise. The first is to add motor shock pads, but the noise reduction effect of this method is poor. The second is to control the shape of the pipeline to avoid resonance caused by running in the same frequency band as the motor, but this method cannot directly determine whether it is effective. The third is to reduce the motor speed to improve the noise, but this method is often achieved at the expense of the overall performance of the product. Therefore, a refrigerator that can effectively reduce operating noise is needed to reduce the noise during operation while ensuring product performance. Utility Model Content

[0004] The purpose of the utility model is to provide a refrigerator which can effectively reduce the operating noise, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a refrigerator that can effectively reduce operating noise, comprising a refrigerator body, a refrigeration chamber, a compressor and a muffler, a refrigeration chamber is arranged at a central position inside the refrigerator body, and shelves are evenly distributed inside the refrigeration chamber, a first chamber is arranged at the bottom end of the refrigerator body, and a compressor is arranged inside the first chamber, a muffler is connected to the exhaust end of the compressor, and a baffle is arranged inside the muffler, and through holes are evenly distributed on the baffle, a second chamber is arranged on one side of the refrigerator body, and a condenser is arranged inside the second chamber, an end of the muffler away from the compressor is connected to the condenser, and the top of the condenser is connected to the evaporator through a capillary tube, and one end of the evaporator is connected to the compressor.

[0006] Universal wheels are provided at the four corners of the bottom of the refrigerator body, and frames are provided at the bottom ends of both sides of the refrigerator body, and screw rods are provided inside the frames, driving blocks are sleeved on the screw rods, and a support frame is provided at one end of the bottom of the driving block; flanges are provided at both ends of the muffler, and an annular groove is provided on the side of the flange away from the muffler, and a sealing ring is embedded inside the annular groove.

[0007] Preferably, heat sinks are evenly arranged on one side of the condenser, and the heat sinks are all made of copper alloy.

[0008] Preferably, anti-rotation blocks are evenly distributed on the outer side of the sealing ring, and anti-rotation grooves matching with the anti-rotation blocks are formed around the inside of the annular groove.

[0009] Preferably, both ends of the shelf are provided with slide rails, and both sides of the interior of the refrigeration chamber are evenly distributed with slide grooves.

[0010] Preferably, a micro motor is fixed to the top of the frame, and the output end of the micro motor is connected to the screw rod.

[0011] Preferably, a guide rod is provided on one side of the interior of the frame, and one side of the driving block is connected to the guide rod via a guide sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the refrigerator which can effectively reduce the operating noise is equipped with a refrigerator body, a first chamber, a compressor and a muffler. A baffle is arranged inside the muffler, and through holes are evenly opened on the baffle. One end of the muffler is connected to the exhaust end of the compressor through a flange, so that the noise of the airflow discharged by the compressor is attenuated after passing through the porous baffle in the muffler, thereby achieving the purpose of muffler. The noise can be effectively reduced by 2-3dB, and the noise reduction effect is obvious. There is no need to reduce the motor speed, reduce the cooling capacity of the compressor and other measures to reduce the noise. The exhaust pulse is reduced by pipeline design to reduce the vibration frequency of the whole machine, and there is no effect on the performance of the whole product. At the same time, an annular groove is opened on the flange, and a sealing ring is embedded in the annular groove. The sealing ring is made of silicone material to improve the tightness of the connection between the muffler and the exhaust end of the compressor, and it is not easy to leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side cross-sectional structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the silencer of the utility model.

[0015] Figure 3 It is a schematic diagram of the side structure of the baffle of the utility model.

[0016] Figure 4 It is a side view structural schematic diagram of the flange of the present utility model.

[0017] Figure 5 It is a front view cross-sectional structural schematic diagram of the utility model.

[0018] Figure 6 It is a schematic diagram of the frame structure of the utility model.

[0019] In the figure: 1. refrigerator body; 2. refrigeration chamber; 3. first chamber; 4. compressor; 5. muffler; 6. condenser; 7. heat sink; 8. second chamber; 9. capillary tube; 10. evaporator; 11. flange; 12. baffle; 13. through hole; 14. annular groove; 15. sealing ring; 16. anti-rotation block; 17. shelf; 18. slide groove; 19. frame; 20. slide rail; 21. universal wheel; 22. micro motor; 23. screw rod; 24. drive block; 25. support bracket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 The utility model provides an embodiment: a refrigerator that can effectively reduce operating noise, including a refrigerator body 1, a refrigeration chamber 2, a compressor 4 and a muffler 5, universal wheels 21 are arranged at the four corners of the bottom of the refrigerator body 1, and frames 19 are arranged at the bottom ends of both sides of the refrigerator body 1, and screw rods 23 are arranged inside the frames 19, driving blocks 24 are sleeved on the screw rods 23, and a support frame 25 is arranged at one end of the bottom of the driving block 24.

[0022] A micro motor 22 is fixed to the top of the frame 19, and the output end of the micro motor 22 is connected to the screw rod 23; the refrigerator body 1 is moved to the use area through the universal wheel 21, and then the micro motor 22 drives the screw rod 23 to rotate, so that the driving block 24 moves down along the screw rod 23, so that the support frame 25 contacts the ground, supports the refrigerator body 1, does not affect the movement of the refrigerator body 1 while ensuring stability during operation.

[0023] A guide rod is provided on one side of the frame 19, and one side of the driving block 24 is connected to the guide rod through a guide sleeve, which guides and limits the support frame 25 when it moves; a refrigeration chamber 2 is provided at the central position inside the refrigerator body 1, and shelves 17 are evenly distributed inside the refrigeration chamber 2, and the items to be refrigerated are placed on the shelves 17. Both ends of the shelf 17 are provided with slide rails 20, and both sides of the refrigeration chamber 2 are evenly distributed with slide grooves 18, which facilitate the pushing and pulling of the shelf 17 and the placement and removal of items;

[0024] A first chamber 3 is provided at the bottom end of the refrigerator body 1, and a compressor 4 is provided inside the first chamber 3, a muffler 5 is connected to the exhaust end of the compressor 4, a second chamber 8 is provided on one side of the refrigerator body 1, and a condenser 6 is provided inside the second chamber 8, and heat sinks 7 are evenly provided on one side of the condenser 6, and the heat sinks 7 are made of copper alloy.

[0025] One end of the muffler 5 away from the compressor 4 is connected to the condenser 6, and the top of the condenser 6 is connected to the evaporator 10 through the capillary 9, and one end of the evaporator 10 is connected to the compressor 4; the compressor 4 compresses and liquefies the refrigerant, and then releases a large amount of heat, which is dissipated into the air through the condenser 6 and the heat sink 7, and then enters the evaporator 10 through the capillary 9. The refrigerant evaporates in the evaporator 10 and absorbs a large amount of heat, rapidly reducing the temperature around the evaporator 10, so that the cold air is quickly transferred to the refrigeration chamber 2 to refrigerate the items.

[0026] A baffle 12 is provided inside the muffler 5, and through holes 13 are evenly distributed on the baffle 12. The exhaust end of the compressor 4 is connected to the muffler 5, so that the noise of the airflow discharged from the compressor 4 is attenuated after passing through the porous baffle 12 in the muffler 5, thereby achieving the purpose of silencing. The noise can be effectively reduced by 2-3dB, and the noise reduction effect is obvious. There is no need to reduce the noise by reducing the motor speed, reducing the cooling capacity of the compressor and other measures. The exhaust pulse is reduced by pipeline design to reduce the vibration frequency of the whole machine, and there is no effect on the performance of the whole product.

[0027] Flanges 11 are provided at both ends of the muffler 5, and an annular groove 14 is provided on the side of the flange 11 away from the muffler 5, and a sealing ring 15 is embedded in the inside of the annular groove 14. The sealing ring 15 is made of silicone material to improve the tightness of the connection between the muffler 5 and the exhaust end of the compressor 4 and the input end of the condenser 6; anti-rotation blocks 16 are evenly distributed on the outside of the sealing ring 15, and anti-rotation grooves matching the anti-rotation blocks 16 are provided around the inside of the annular groove 14, so that the sealing ring 15 is not prone to relative rotation and is more stable when embedded; the specific models and specifications of the compressor 4, condenser 6, evaporator 10 and micro motor 22 need to be determined according to the selection calculation of the specification parameters of the device, and its selection calculation method is a prior art, so it will not be described in detail.

[0028] The device moves the refrigerator body 1 to the use area through the universal wheel 21, and then the micro motor 22 drives the screw rod 23 to rotate, so that the driving block 24 moves down along the screw rod 23, so that the support frame 25 contacts the ground, supports the refrigerator body 1, does not affect the movement of the refrigerator body 1 while ensuring the stability during operation, and then puts the items to be refrigerated on the shelf 17, the compressor 4 compresses and liquefies the refrigerant, and then releases a large amount of heat, which is dissipated into the air through the condenser 6 and the heat sink 7, and then enters the evaporator 10 through the capillary 9. The refrigerant evaporates in the evaporator 10 and absorbs a large amount of heat, which rapidly reduces the temperature around the evaporator 10, so that the cold air is quickly transferred to the refrigeration chamber 2 to refrigerate the items.

[0029] The exhaust end of the compressor 4 is connected to a muffler 5, so that the noise of the airflow discharged from the compressor 4 is attenuated after passing through the porous baffle 12 in the muffler 5, thereby achieving the purpose of silencing. The noise can be effectively reduced by 2-3dB, and the noise reduction effect is obvious. There is no need to reduce the motor speed, reduce the cooling capacity of the compressor and other measures to reduce the noise. The exhaust pulse is reduced by pipeline design to reduce the vibration frequency of the whole machine, and there is no effect on the performance of the whole product. At the same time, flanges 11 are provided at both ends of the muffler 5, and annular grooves 14 are opened on the flanges 11. A sealing ring 15 is embedded in the annular groove 14. The sealing ring 15 is made of silicone material to improve the tightness of the connection between the muffler 5 and the exhaust end of the compressor 4 and the input end of the condenser 6.

Claims

1. A refrigerator that can effectively reduce operating noise, characterized in that: The refrigerator comprises a refrigerator body (1), a refrigeration chamber (2), a compressor (4) and a muffler (5); the refrigeration chamber (2) is arranged at a central position inside the refrigerator body (1), and shelves (17) are evenly distributed inside the refrigeration chamber (2); a first chamber (3) is arranged at the bottom end inside the refrigerator body (1), and a compressor (4) is arranged inside the first chamber (3); an exhaust end of the compressor (4) is connected to the muffler (5), and a baffle (12) is arranged inside the muffler (5), and through holes (13) are evenly distributed on the baffle (12); a second chamber (8) is arranged on one side inside the refrigerator body (1), and a condenser (6) is arranged inside the second chamber (8); an end of the muffler (5) away from the compressor (4) is connected to the condenser (6) The refrigerator body (1) is connected to a refrigerator (6), and the top of the condenser (6) is connected to an evaporator (10) through a capillary tube (9), and one end of the evaporator (10) is connected to a compressor (4); universal wheels (21) are provided at four corners of the bottom of the refrigerator body (1), and frames (19) are provided at the bottom ends of both sides of the refrigerator body (1), and screw rods (23) are provided inside the frames (19), and driving blocks (24) are sleeved on the screw rods (23), and a support frame (25) is provided at one end of the bottom of the driving blocks (24); flanges (11) are provided at both ends of the muffler (5), and an annular groove (14) is provided on the side of the flange (11) away from the muffler (5), and a sealing ring (15) is embedded inside the annular groove (14).

2. A refrigerator capable of effectively reducing operating noise according to claim 1, characterized in that: Heat sinks (7) are evenly arranged on one side of the condenser (6), and the heat sinks (7) are all made of copper alloy.

3. A refrigerator capable of effectively reducing operating noise according to claim 1, characterized in that: Anti-rotation blocks (16) are evenly distributed on the outside of the sealing ring (15), and anti-rotation grooves matching the anti-rotation blocks (16) are provided on all four sides of the inside of the annular groove (14).

4. A refrigerator capable of effectively reducing operating noise according to claim 1, characterized in that: Slide rails (20) are provided at both ends of the shelf (17), and slide grooves (18) are evenly distributed on both sides inside the refrigeration chamber (2).

5. A refrigerator capable of effectively reducing operating noise according to claim 1, characterized in that: A micro motor (22) is fixed to the top of the frame (19), and the output end of the micro motor (22) is connected to the screw rod (23).

6. A refrigerator capable of effectively reducing operating noise according to claim 1, characterized in that: A guide rod is provided on one side of the interior of the frame (19), and one side of the driving block (24) is connected to the guide rod via a guide sleeve.

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