TW201932772A - Noise reduction apparatus and cooling equipment having the noise reduction apparatus - Google Patents

Abstract

A noise reduction apparatus applied in cooling equipments is provided. The cooling equipment includes a compressor, a condenser, a capillary and an evaporator. Refrigerating fluid circulates between the compressor, the condenser, the capillary and the evaporator. The noise reduction apparatus is connected between the capillary and the evaporator. The noise reduction apparatus includes at least one transition tube, the at least one transition tube forms a channel for the refrigerating fluid, and a diameter of the channel is gradually increased from the capillary to the evaporator. A cooling equipment having the noise reduction apparatus is also provided.

Description

Noise reduction device and refrigeration equipment having the same

The invention relates to the field of refrigeration equipment, in particular to a noise reduction device for reducing noise of a refrigeration system and a refrigeration equipment having the noise reduction device.

In daily life, small-sized refrigeration equipment such as dehumidifiers, refrigerators, freezers, and wine cabinets generally use capillary tubes as throttling components of refrigeration systems. These refrigeration equipment often experience periodic noise during operation because the refrigerant passes through the capillary tubes. When entering the evaporator after throttling and depressurizing, because the diameter of the capillary tube is small, the flow rate of the refrigerant in the capillary tube is very fast, and when entering the evaporator, the diameter of the evaporator tube suddenly becomes larger, so that the refrigerant is in the capillary tube. The sound of liquid ejection will be formed at the outlet, and this liquid ejection sound will be periodic with the compressor startup and load changes. This noise can seriously affect the user experience.

In view of this, it is necessary to propose a noise reduction device and a refrigeration equipment having the noise reduction device to solve the above problems.

In one aspect, the present invention provides a noise reduction device, which is applied to refrigeration equipment, the refrigeration equipment includes a compressor, a condenser, a capillary tube, and an evaporator, and a refrigerant is between the compressor, the condenser, the capillary tube, and the evaporator. Loop. The noise reduction device is connected between the capillary tube and the evaporator, and the noise reduction device includes at least one transition tube, and the at least one transition tube forms a channel through which the refrigerant flows, and the tube of the channel The diameter gradually increases from the capillary to the evaporator.

Preferably, the noise reduction device includes a first transition tube, a second transition tube, and a connection portion. One end of the first transition tube is connected to the capillary tube, and the other end is connected to the second transition tube through the connection portion. One end of the second transition tube is connected to the evaporator, and the other end of the second transition tube is connected to the evaporator; wherein the inner diameter of the first transition tube is larger than the inner diameter of the capillary tube, and the inner diameter of the second transition tube is larger than the inner diameter The inner diameter of the first transition pipe; the connecting portion is an inner diameter that gradually increases from the first transition pipe to the second transition pipe, and the inner diameter of one end connected to the first transition pipe is equal to the inner diameter of the first transition pipe An inner diameter of an end connected to the second transition pipe is equal to an inner diameter of the second transition pipe.

Preferably, the at least one transition tube and the capillary are connected by welding, and the at least one transition tube and the evaporator are connected by welding.

Preferably, the noise reduction device further includes a damping gel covering the periphery of the transition pipe.

Preferably, the inner wall of the at least one transition tube is a smooth inner wall that has undergone a burr-free treatment.

Preferably, an end of the at least one transition pipe connected to the evaporator is rounded.

The noise reduction device and the refrigeration equipment provided with the noise reduction device of the present invention can reduce the flow of refrigerant through the capillary tube to the evaporator by forming at least one transition tube between the capillary tube and the evaporator. The flow rate of the refrigerant flowing from the capillary tube to the evaporator is small, thereby avoiding the formation of a liquid ejection sound at the outlet of the capillary tube due to the rapid flow of the refrigerant in the capillary tube and the sudden increase in tube diameter when entering the evaporator, thereby reducing the cooling Effect of equipment noise. In addition, the noise reduction device further includes a damping rubber covering the periphery of the transition pipe, and the damping rubber has the effect of damping and absorbing sound, thereby further reducing the noise of the refrigeration equipment.

In order to understand the above-mentioned objects, features, and advantages of the present invention more clearly, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. The described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

Please refer to FIG. 1, which is a schematic structural diagram of a refrigeration device 100 according to a preferred embodiment of the present invention. The refrigeration equipment 100 includes a compressor 11, a condenser 12, a drying screening program 13, a capillary tube 14, a noise reduction device 15, an evaporator 16, and the like. The compressor 11 sucks low-temperature and low-pressure steam from the evaporator 16, and compresses the low-temperature and low-pressure steam into high-temperature and high-pressure steam and sends it to the condenser 12 for cooling. The high-temperature and high-pressure steam is cooled by the condenser. 12 After cooling to low temperature and high pressure gas, it is filtered by the drying screening program 13 and then enters the capillary tube 14 to be throttled into a low temperature and low pressure liquid refrigerant. The liquid refrigerant flows into the evaporation through the noise reduction device 15 In the evaporator 16, the liquid refrigerant is vaporized in the evaporator 16 to a low-temperature and low-pressure vapor, and is sucked into the compressor 11 again as described above, and the above loop is repeated. Wherein, the noise reduction device 15 includes at least one transition tube, and the at least one transition tube forms a channel through which the refrigerant flows, and the diameter of the channel gradually increases from the capillary 14 to the evaporator 16. The gradually enlarged channel formed by the at least one transition tube is used to reduce the flow rate of the refrigerant flowing from the capillary tube 14 to the evaporator 16, thereby avoiding the refrigerant flowing in the capillary tube 14 from entering the evaporator 16 due to the rapid flow rate of the refrigerant. Due to the sudden increase of the pipe diameter, a liquid ejection sound is formed at the outlet of the capillary 14 to achieve the effect of reducing the noise of the refrigeration equipment 100. In addition, the noise reduction device 15 further includes a damping rubber covering the periphery of the transition pipe, and the damping rubber has the effect of damping and absorbing sound, thereby further reducing the noise of the refrigeration device 100. It can be understood that the refrigeration device 100 further includes other components such as a fan, a humidity control system, and a housing. Since they are not the focus of the present invention, they are not shown here.

The structure of the noise reduction device 15 according to an embodiment of the present invention is further described below with reference to FIGS. 2-4.

FIG. 2 is a schematic structural diagram of the noise reduction device 15 according to the first embodiment of the present invention. In the first embodiment, the noise reduction device 15 includes a first transition pipe 151, a second transition pipe 152, and a connection portion 153. One end of the first transition tube 151 is connected to the capillary tube 14, and the other end is connected to one end of the second transition tube 152 through the connection portion 153. The other end of the second transition tube 152 is connected to the evaporator 16. In the first embodiment, the inner diameter ΦA of the first transition tube 151 is larger than the inner diameter of the capillary tube 14, and the inner diameter ΦB of the second transition tube 152 is larger than the inner diameter of the first transition tube 151. ΦΦA. For example, in this embodiment, the inner diameter of the capillary 14 is 1.8 mm, the inner diameter of the first transition tube 151 is 3.2 mm, and the inner diameter of the second transition tube 152 is 4.0 mm. The connecting portion 153 is a funnel-shaped structure whose inner diameter gradually increases from the first transition pipe 151 to the second transition pipe 152. The inner diameter of the end connecting the first transition pipe 151 is equal to the inner diameter of the first transition pipe 151. The diameter ΦA, the inner diameter of one end connected to the second transition pipe 152 is equal to the inner diameter ΦB of the second transition pipe 152.

In the first embodiment, the length of the first transition tube 151 is equal to the length of the second transition tube 152. For example, the length of the first transition tube 151 is 140 mm in the first embodiment. The length of the second transition tube 152 is also 140 mm.

In the first embodiment, the damping rubber 154 covers the position where the inner diameter changes, such as the connection between the first transition tube 151 and the capillary tube 14 and the connection between the second transition tube 152 and the evaporator 16. In other embodiments of the present invention, the damping glue 154 may cover all positions from the connection between the first transition tube 151 and the capillary tube 14 to the connection between the second transition tube 152 and the evaporator 16.

In the first embodiment, the first transition tube 151 and the capillary tube 14 are connected by welding, and the second transition tube 152 and the evaporator 16 are also connected by welding. . In other embodiments of the present invention, the first transition tube 151 and the capillary tube 14 and the second transition tube 152 and the evaporator 16 may be connected by other methods, for example, by a screw joint.

In the first embodiment, the first transition tube 151, the connection portion 153, and the second transition tube 152 are made by integral molding. In other embodiments of the present invention, the first transition tube 151, the connection portion 153, and the second transition tube 152 may be connected by welding or other connection methods.

In the first embodiment, the first transition tube 151, the second transition tube 152, and the connection portion 153 are made of a copper tube. In other embodiments of the present invention, the first transition tube 151, the second transition tube 152, and the connection portion 153 may be made of other materials such as a stainless steel tube.

In the first embodiment, the inner walls of the first transition pipe 151, the second transition pipe 152, and the connection portion 153 are smooth inner walls that have undergone no burr treatment.

In the first embodiment, an end portion 1521 of the second transition tube 152 connected to the evaporator 16 has a rounded structure, as shown in FIG. 3. In other ways, the end of the first transition tube 151 connected to the capillary tube 14 may have a rounded structure.

In other embodiments of the present invention, the number of transition pipes in the noise reduction device 15 is not limited to two, and the number of transition pipes may be set to other values according to the number of transition pipes. For example, in the second embodiment of the present invention shown in FIG. 4, the noise reduction device 15 includes three transition pipes 151 a-151 c that are sequentially connected and whose inner diameters are sequentially increased. The transition pipe 151 a is connected to all the pipes. The capillary tube 14 is connected to the evaporator 16 with the transition tube 151c. The damping glue 154 covers the connection between the transition tube 151a and the capillary tube 14 and the connection between the transition tube 151c and the evaporator 16. It can be understood that the position of the damping glue 154 is not limited to this, and it can also be covered at the position where each pipe diameter changes, and the entire noise reduction device 15 can also be covered.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Furthermore, it is clear that the word "comprising" does not exclude other units or that the singular does not exclude the plural. The multiple units or devices stated in the system claims may also be implemented by one unit or device through software or hardware. Words such as first and second are used to indicate names, but not in any particular order.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention Modifications or equivalent substitutions can be made without departing from the spirit and scope of the technical solution of the present invention.

100‧‧‧Refrigeration equipment

11‧‧‧compressor

12‧‧‧ condenser

13‧‧‧Drying Screening Program

14‧‧‧ Capillary

15‧‧‧Noise reduction device

16‧‧‧Evaporator

151‧‧‧The first transition tube

152‧‧‧Second transition tube

1521‧‧‧End

153‧‧‧Connection Department

154‧‧‧ damping glue

151a-151c‧‧‧Transition tube

FIG. 1 is a schematic diagram of a refrigeration equipment in an embodiment of the present invention. FIG. 2 is a schematic structural diagram of a noise reduction device in the first embodiment of the present invention. 3 is a schematic cross-sectional structure diagram of a noise reduction device in a first embodiment of the present invention. FIG. 4 is a schematic diagram of a noise reduction device in a second embodiment of the present invention.

Claims (10)

A noise reduction device is applied to refrigeration equipment. The refrigeration equipment includes a compressor, a condenser, a capillary tube, and an evaporator. The refrigerant loops between the compressor, the condenser, the capillary tube, and the evaporator. The noise reduction device is connected between the capillary tube and the evaporator. The noise reduction device includes at least one transition tube, and the at least one transition tube forms a channel through which the refrigerant circulates. The pipe diameter gradually increases from the capillary to the evaporator. The noise reduction device according to item 1 of the scope of patent application, wherein the noise reduction device includes a first transition tube, a second transition tube, and a connection portion, and one end of the first transition tube is connected to the capillary tube, and the other One end is connected to one end of the second transition tube through the connecting portion, and the other end of the second transition tube is connected to the evaporator; wherein the inner diameter of the first transition tube is larger than the inner diameter of the capillary tube. An inner diameter of the second transition pipe is larger than an inner diameter of the first transition pipe; the inner diameter of the connection portion gradually increases from the first transition pipe toward the second transition pipe, and the connection portion is connected The inner diameter of one end of the first transition tube is equal to the inner diameter of the first transition tube, and the inner diameter of one end of the connecting portion connected to the second transition tube is equal to the inner diameter of the second transition tube. The noise reduction device according to item 1 of the scope of patent application, wherein the at least one transition tube is connected to the capillary tube by welding, and the at least one transition tube is connected to the evaporator by welding. The noise reduction device according to item 1 of the scope of the patent application, wherein the noise reduction device further comprises a damping rubber covering the periphery of the transition pipe. The noise reduction device according to item 1 of the scope of the patent application, wherein the damping rubber covers the position where each pipe diameter changes. The noise reduction device according to item 1 of the scope of patent application, wherein the at least one transition pipe is made by integral molding. The noise reduction device according to item 1 of the scope of patent application, wherein the at least one transition pipe is made of a copper pipe. The noise reduction device according to item 1 of the scope of patent application, wherein the inner wall of the at least one transition pipe is a smooth inner wall that has undergone a burr-free treatment. The noise reduction device according to item 1 of the scope of patent application, wherein an end of the at least one transition pipe connected to the evaporator is rounded. A refrigeration device includes the noise reduction device according to any one of claims 1 to 9 of the scope of patent application.