Plastic exhaust muffler of metal joint, compressor and refrigeration equipment

Abstract

The utility model belongs to compressor technical field, specifically discloses a kind of plastic exhaust muffler of metal joint, compressor and refrigeration equipment.Compared with the traditional exhaust muffler with metal as single material, the exhaust muffler of the utility model is made of two kinds of materials of metal and plastic, wherein the joint and elbow pipe with smaller contact area are made of metal material, to ensure the strength of connecting place and the integrity of part;The sound-absorbing package and inner exhaust pipe with larger contact area are made of heat-insulating high-pressure-resistant plastic material, which helps to reduce the heat transfer of high-temperature and high-pressure gas in the exhaust muffler to the compressor cavity, thereby avoiding the occurrence of suction overheating phenomenon.The plastic exhaust muffler of metal joint of the utility model can reduce the heat transfer of exhaust muffler to the compressor cavity, avoid the temperature of gas in the compressor cavity being too high, thereby improve the compression rate of suction gas, realize the improvement of overall performance and operating efficiency of compressor.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology and relates to a plastic exhaust muffler with a metal joint, a compressor and refrigeration equipment. Background Technology

[0002] Reciprocating compressors, a type of compressor widely used in refrigeration equipment, rely on the rotation of a crankshaft to drive the connecting rod, causing the piston to reciprocate within the cylinder, thus compressing the gas. During this process, significant heat is generated when the gas is compressed. The high-temperature, high-pressure compressed gas transfers a large amount of heat energy into the compressor cavity as it flows through the exhaust muffler, causing the gas temperature inside the compressor cavity to rise. This leads to overheating of the gas at the intake port of the intake muffler. This intake overheating increases the initial temperature of the gas entering the cylinder for compression, reducing the compressor's operating efficiency and negatively impacting its overall performance.

[0003] Currently, most reciprocating compressor exhaust mufflers on the market are made of metal, with the various components connected into a single unit through welding. Although metal performs well in terms of strength and durability, the high thermal conductivity of metal causes heat to be rapidly transferred to the compressor cavity, resulting in a significant increase in the temperature of the refrigerant-containing gas inside the compressor cavity. This heat transfer exacerbates the overheating problem at the intake port of the intake muffler, affecting the compressor's operating efficiency and lifespan.

[0004] Therefore, the structure of the exhaust muffler in the existing technology needs further improvement. Utility Model Content

[0005] The purpose of this invention is to propose a plastic exhaust muffler, compressor, and refrigeration equipment with a metal connector, so as to avoid the problem of overheating of intake air caused by the high thermal conductivity of traditional metal exhaust mufflers, thereby improving the overall performance and operating efficiency of the compressor.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A plastic exhaust muffler with a metal connector includes a connector, a bend, a muffler housing, and an inner exhaust pipe;

[0008] The joints and bends are made of metal, while the sound-absorbing package and inner pipe are made of heat-insulating and high-pressure-resistant plastic.

[0009] The muffler consists of a front section, a rear section, and a partition.

[0010] The front section of the muffler is equipped with an air inlet, and the connector is connected to the air inlet via a bend in the pipe; the front section and the rear section of the muffler are connected to each other to form a muffler cavity; the rear section of the muffler is equipped with an air outlet, which is connected to the inner exhaust pipe.

[0011] A partition is set at the connection between the front and rear sections of the muffler. The partition separates the muffler chambers to form a first muffler chamber and a second muffler chamber. The first muffler chamber is connected to the air inlet, and the second muffler chamber is connected to the air outlet. At least one vent is provided on the partition, which connects the first muffler chamber and the second muffler chamber.

[0012] Preferably, one end of the rear section of the muffler is provided with a first connecting part for connecting to the front section of the muffler, and the radial length of the first connecting part is greater than the radial length of the front section of the muffler.

[0013] The other end of the rear section of the silencer is provided with a second connecting part for connecting the inner pipe. The radial length of the second connecting part is greater than the radial length of the inner pipe.

[0014] Preferably, the front section of the sound-absorbing package, the partition, and the first connecting part are connected by laser welding;

[0015] The second connecting part and one end of the inner pipe are connected by laser welding.

[0016] Preferably, the front section of the silencer and the inner pipe are black or dark-colored.

[0017] Preferably, the rear section of the sound-absorbing package is transparent or semi-transparent.

[0018] Preferably, one end of the bend is connected to the joint by welding, and the other end of the bend is connected to the front section of the sound-absorbing package by adhesive bonding.

[0019] Preferably, the heat-insulating and high-pressure-resistant plastic material is made of polyamide and glass fiber.

[0020] Preferably, the metal material is a copper alloy.

[0021] A compressor having a plastic exhaust muffler with the aforementioned metal connector.

[0022] A refrigeration device, wherein the refrigeration device is equipped with the above-described compressor.

[0023] Compared with the prior art, this utility model has the following advantages:

[0024] As described above, this utility model relates to a plastic exhaust muffler with a metal connector, which is applied to compressors and refrigeration equipment. Compared to traditional exhaust mufflers that use metal as the sole material, this utility model's exhaust muffler is made of both metal and plastic. The connector and bend, with smaller contact areas, are made of metal to ensure the strength of the connection and the integrity of the parts; the muffler housing and inner exhaust pipe, with larger contact areas, are made of heat-insulating and high-pressure-resistant plastic. This helps reduce heat transfer from the high-temperature, high-pressure gas in the exhaust muffler to the compressor cavity, thus preventing overheating of the intake gas. This plastic exhaust muffler with a metal connector reduces heat transfer from the exhaust muffler to the compressor cavity, preventing excessively high gas temperatures inside the compressor cavity. This results in lower initial temperatures for the gas entering the cylinder for compression, thereby increasing the compression ratio of the intake gas and improving the overall performance and operating efficiency of the compressor. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0026] Figure 1 This is a perspective view of a plastic exhaust muffler with a metal connector according to an embodiment of the present invention.

[0027] Figure 2 This is an exploded structural diagram of the plastic exhaust muffler with a metal connector according to an embodiment of this utility model.

[0028] Figure 3 This is a front view of the plastic exhaust muffler with a metal connector according to an embodiment of the present invention.

[0029] Figure 4 This is a side view of a plastic exhaust muffler with a metal connector according to an embodiment of the present invention.

[0030] Among them, 1-connector, 2-bend, 3-silencing package, 31-front section of silencer package, 32-partition, 321-vent hole, 33-rear section of silencer package, 331-first connecting part, 332-second connecting part, 4-inner pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] Example 1

[0038] To address the problem of overheating during intake in existing compressors, this embodiment proposes a plastic exhaust muffler with a metal connector. By replacing the material of the muffler housing 3 and the inner exhaust pipe 4 in the exhaust muffler with heat-insulating and high-pressure-resistant plastic, the heat transfer from the inside of the exhaust muffler to the compressor cavity is reduced, thus preventing the temperature of the gas inside the compressor cavity from becoming too high and thereby improving the compression ratio of the intake gas.

[0039] like Figures 1 to 4 As shown, the plastic exhaust muffler with metal connector in this embodiment includes connector 1, bend 2, muffler 3 and inner exhaust pipe 4.

[0040] The connector 1 and bend 2 are made of metal, while the silencer 3 and inner exhaust pipe 4 are made of heat-insulating and high-pressure-resistant plastic. The silencer 3 and inner exhaust pipe 4 have a larger contact area with the gas inside the compressor cavity than the connector 1 and bend 2. Therefore, using heat-insulating and high-pressure-resistant plastic for the silencer 3 and inner exhaust pipe 4 helps reduce heat transfer from the high-temperature, high-pressure gas in the exhaust silencer to the compressor cavity, thus preventing overheating during intake. The connector 1 is used to connect with the clamping screw; therefore, to ensure the strength of the connection and the integrity of the parts, both connector 1 and bend 2 are designed to be made of metal.

[0041] The muffler 3 includes a front section 31, a rear section 33, and a partition 32. The front section 31 has an air inlet, and a connector 1 connects to the air inlet via a bend 2. The rear section 33 has an air outlet, which connects to the inner exhaust pipe 4.

[0042] The front section 31 and the rear section 33 of the silencing package are connected to each other to form a silencing cavity.

[0043] A partition 32 is disposed at the connection between the front section 31 and the rear section 33 of the muffler. The partition 32 separates the muffler chambers to form a first muffler chamber and a second muffler chamber. The first muffler chamber is connected to the air inlet, and the second muffler chamber is connected to the air outlet. At least one vent hole 321 is provided on the partition 32, and the vent hole 321 connects the first muffler chamber and the second muffler chamber.

[0044] In this embodiment, one end of the rear section 33 of the muffler is further provided with a first connecting part 331 for connecting to the front section 31 of the muffler, and the radial length of the first connecting part 331 is greater than the radial length of the front section 31 of the muffler. The other end of the rear section 33 of the muffler is provided with a second connecting part 332 for connecting to the inner pipe 4, and the radial length of the second connecting part 332 is greater than the radial length of the inner pipe 4.

[0045] Both the sound-absorbing package 3 and the inner drain pipe 4 are made of plastic, therefore laser welding is the most suitable and environmentally friendly connection method. Specifically, the front section 31 of the sound-absorbing package, the partition 32, and the first connecting part 331 are preferably connected by laser welding. The second connecting part 332 and one end of the inner drain pipe 4 are also preferably connected by laser welding. The rear section 33 of the sound-absorbing package is preferably transparent or semi-transparent, allowing the laser to pass through smoothly during laser welding. The front section 31 of the sound-absorbing package and the inner drain pipe 4 are preferably black or dark-colored, absorbing the laser energy during laser welding to achieve the purpose of laser welding.

[0046] One end of the bend 2 is connected to the connector 1 by welding. Since both the bend 2 and the connector 1 are made of metal, welding is the most suitable and economical connection method based on the material of the parts.

[0047] The other end of the bend 2 is connected to the front section 31 of the muffler by adhesive bonding. Since the bend 2 is made of metal and the front section 31 of the muffler is made of plastic, the most suitable connection method between the two is to use high-strength adhesive bonding.

[0048] In this embodiment, the heat-insulating and high-pressure resistant plastic material is made of polyamide and glass fiber. The plastic material made of polyamide and glass fiber has good properties of high temperature resistance and high pressure resistance.

[0049] The working principle of the plastic exhaust muffler with metal connector in this embodiment is as follows:

[0050] When the high-temperature, high-pressure gas compressed in the compressor cylinder flows into the exhaust muffler, it transfers heat to the compressor cavity through the muffler's wall. This invention's metal-jointed plastic exhaust muffler uses heat-insulating, high-pressure-resistant plastic for the muffler housing 3 and inner pipe 4, while retaining the metal material for the joint 1 and bend 2. This design maintains the exhaust muffler's connection strength while reducing the heat transfer efficiency from the exhaust muffler to the compressor cavity. This exhaust muffler allows more of the compressed, high-temperature, high-pressure gas to be discharged outside the compressor, thus reducing the impact of intake overheating on the compressor's overall performance and operating efficiency.

[0051] Most exhaust mufflers used in compressors on the market are made of metal. However, in the plastic exhaust muffler with metal connector of this utility model, the connector 1 and the bend 2 are made of metal, such as copper alloy, to ensure the strength of the connection and the integrity of the parts. The muffler 3 and the inner exhaust pipe 4 are made of heat-insulating and high-pressure resistant plastic, such as plastic made of polyamide and glass fiber, which helps to reduce the heat transfer of high-temperature and high-pressure gas in the exhaust muffler to the compressor cavity, thereby avoiding the occurrence of intake overheating.

[0052] Furthermore, the connection method between the components of the exhaust muffler used in the compressor on the market is usually welding, while the plastic exhaust muffler with metal joint of this utility model selects a more suitable connection method according to different materials. The connection method between the joint 1 and the bend 2 is welding, the connection method between the bend 2 and the front section 31 of the muffler is high-strength adhesive bonding, and the connection method between the remaining components is laser welding.

[0053] In addition, to facilitate laser welding, one end of the rear section 33 of the silencing package is provided with a first connecting part 331 for connecting the front section 31 of the silencing package, and the radial length of the first connecting part 331 is greater than the radial length of the front section 31 of the silencing package; the other end of the rear section 33 of the silencing package is provided with a second connecting part 332 for connecting the inner pipe 4, and the radial length of the second connecting part 332 is greater than the radial length of the inner pipe 4; the rear section 33 of the silencing package is transparent or semi-transparent in color, which can ensure that the laser can pass through during laser welding, while the front section 31 of the silencing package and the inner pipe 4 are black or dark in color, which can absorb the energy of the laser during laser welding.

[0054] Example 2

[0055] A compressor having a plastic exhaust muffler with a metal connector as described in Embodiment 1.

[0056] In this embodiment, a plastic exhaust muffler with a metal connector is applied to a compressor. Compared to traditional exhaust mufflers in reciprocating compressors that use metal as the sole material, this utility model's exhaust muffler is made of both metal and plastic. The connector and bend, with smaller contact areas, are made of metal to ensure the strength of the connection and the integrity of the parts. The muffler housing and inner exhaust pipe, with larger contact areas, are made of heat-insulating and high-pressure-resistant plastic, which helps reduce heat transfer from the high-temperature, high-pressure gas in the exhaust muffler to the compressor cavity, thus preventing overheating of the intake gas. This utility model's plastic exhaust muffler with a metal connector reduces heat transfer from the exhaust muffler to the compressor cavity, thereby preventing excessively high temperatures of the gas inside the compressor cavity, increasing the compression ratio of the intake gas, and ultimately improving the overall performance and operating efficiency of the compressor.

[0057] Example 3

[0058] A refrigeration device, including the compressor described in Embodiment 2, the refrigeration device including refrigerators, etc.

[0059] The present embodiment has now been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the plastic exhaust muffler, compressor, and refrigeration equipment with metal connector of this utility model. Of course, the above description is only a preferred embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made under the inventive concept of this utility model using the content of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model and should be protected by this utility model.

Claims

1. A plastic exhaust muffler with a metal connector, characterized in that, Includes connectors, bends, silencers, and inner pipes; The connector and the bend are made of metal, while the sound-absorbing package and the inner pipe are made of heat-insulating and high-pressure-resistant plastic. The sound-absorbing package includes a front section, a rear section, and a partition. The front section of the muffler is equipped with an air inlet, and the connector is connected to the air inlet via a bend in the pipe; the front section and the rear section of the muffler are connected to each other to form a muffler cavity; the rear section of the muffler is equipped with an air outlet, which is connected to the inner exhaust pipe. A partition is set at the connection between the front and rear sections of the muffler. The partition separates the muffler chambers to form a first muffler chamber and a second muffler chamber. The first muffler chamber is connected to the air inlet, and the second muffler chamber is connected to the air outlet. At least one vent is provided on the partition, which connects the first muffler chamber and the second muffler chamber.

2. The plastic exhaust muffler with a metal connector according to claim 1, characterized in that, The rear end of the muffler is provided with a first connecting part for connecting to the front end of the muffler, and the radial length of the first connecting part is greater than the radial length of the front end of the muffler. The other end of the rear section of the silencer is provided with a second connecting part for connecting the inner pipe. The radial length of the second connecting part is greater than the radial length of the inner pipe.

3. The plastic exhaust muffler with a metal connector according to claim 2, characterized in that, The front section, partition, and first connecting part of the sound-absorbing package are connected by laser welding. The second connecting part and one end of the inner pipe are connected by laser welding.

4. The plastic exhaust muffler with a metal connector according to claim 3, characterized in that, The front section of the silencer and the inner pipe are black or dark in color.

5. The plastic exhaust muffler with a metal connector according to claim 3, characterized in that, The rear section of the sound-absorbing package is transparent or semi-transparent.

6. The plastic exhaust muffler with a metal connector according to claim 1, characterized in that, One end of the bend is connected to the joint by welding, and the other end of the bend is connected to the front section of the sound-absorbing package by adhesive bonding.

7. The plastic exhaust muffler with a metal connector according to claim 1, characterized in that, The heat-insulating and high-pressure-resistant plastic material is made of polyamide and glass fiber.

8. The plastic exhaust muffler with a metal connector according to claim 1, characterized in that, The metal material is a copper alloy.

9. A compressor, characterized in that, The compressor is equipped with a plastic exhaust muffler with a metal joint as described in any one of claims 1 to 8.

10. A refrigeration device, characterized in that, The refrigeration equipment is equipped with the compressor as described in claim 9.

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