Silencing structure and electric compressor
By designing a sound silence structure including a static disk, a back cover, an exhaust chamber, an exhaust pipe and annular sound silence channel, the problem of large noise and space occupation of the electric compressor is solved, and the effect of reducing noise, improving integration and installation efficiency is achieved.
Patent Information
- Application Number
- CN202421552420.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing electric compressors generate noise when spraying compressed gas, resulting in a larger volume of the silencer, which increases the overall size of the electric compressor, especially in space-constrained applications.
A sound silence structure is designed, including a static disk, a back cover, an exhaust cavity, an exhaust pipe, a silence pipe and an annular sound silence channel. Through an aluminum integrally formed exhaust pipe and a silence pipe, combined with the annular cavity structure, the sound wave processing is optimized and noise is reduced.
It effectively reduces noise, reduces the space occupation of the sound silence structure, improves the integration and installation efficiency of the electric compressor, and ensures long-term stable operation and high temperature resistance and corrosion resistance.
Smart Images
Figure CN222810948U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, and more specifically to a muffler structure and an electric compressor. Background Art
[0002] Electric compressors have been widely used in refrigeration, air conditioning, air compression and other fields due to their efficient and reliable gas compression capabilities. Their core working mechanism utilizes the relative orbital motion between the dynamic electric disk and the electrostatic dynamic disk to complete the gas compression task through a constantly changing closed volume. The compressed gas is then transported to heat exchange systems such as air conditioning to adjust the temperature in the car.
[0003] However, electric compressors inevitably generate noise in the process of ejecting compressed gas. A common noise control method is to install a muffler at the gas outlet. In order to achieve an ideal muffler effect, the muffler often requires a larger volume, which not only requires a larger installation space, but also significantly increases the overall size of the electric compressor, which is particularly disadvantageous in applications where space is limited. Therefore, a new solution needs to be proposed to solve the problem that the muffler structure causes the electric compressor to occupy a large space. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a silencer structure and an electric compressor, which can reduce the space occupied by the silencer structure and improve the integration of the compressor through the structural setting.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a silencer structure, including a static plate, the static plate is detachably connected to a rear cover, an exhaust cavity is formed between the rear cover and the static plate, an exhaust pipe is arranged in the exhaust cavity, an exhaust channel is opened inside the exhaust pipe, a plurality of exhaust holes connected to the exhaust channel are opened on the outer wall of the exhaust pipe, a silencer structure is arranged in the exhaust cavity, the silencer structure includes a silencer pipe fixed in the middle of the exhaust pipe, a silencer channel is opened inside the silencer pipe, and the silencer channel is arranged around the exhaust channel and extends along the extension direction of the exhaust channel.
[0006] The utility model is further configured as follows: an exhaust port is provided at one end of the exhaust pipe, and a heat exchange system is fixedly connected to the end of the exhaust pipe having the exhaust port.
[0007] The utility model is further configured as follows: the silencing channel is an annular cavity structure communicated with the exhaust channel.
[0008] The utility model is further configured as follows: the silencing channel is coaxially arranged with the exhaust channel.
[0009] The utility model is further configured as follows: the rear cover is provided with a deepened cavity, and the deepened cavity is communicated with the exhaust cavity.
[0010] The utility model is further configured as follows: the number of the exhaust holes is an even number, and the exhaust holes are symmetrically arranged along the diameter direction of the exhaust pipe.
[0011] The utility model is further configured as follows: the exhaust pipe and the muffler pipe are integrally formed.
[0012] The utility model is further configured as follows: a bevel or rounded corner is provided at a transition between the silencing channel and the exhaust channel.
[0013] The utility model also discloses an electric compressor, comprising any one of the above-mentioned silencing structures.
[0014] In summary, the utility model has the following beneficial effects:
[0015] This silencer structure can reduce space occupancy, reduce the installation space requirements of the electric compressor, improve the integration of the compressor, shorten the installation steps of the electric compressor, and thus improve the installation efficiency of the electric compressor. The exhaust pipe and silencer pipe are integrally formed of aluminum material, which is resistant to high temperature and corrosion, ensuring long-term stable operation. The annular cavity design of the silencer structure optimizes sound wave processing and reduces noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the utility model without the back cover;
[0018] Figure 3 It is a cross-sectional view of the utility model.
[0019] In the figure: 1, static disk; 2, rear cover; 3, exhaust pipe; 31, exhaust channel; 32, exhaust hole; 33, exhaust port; 4, silencer pipe; 41, silencer channel. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
[0021] like Figure 1-Figure 3As shown, an electric compressor has a silencer structure, which includes a stator 1, which is detachably connected to a rear cover 2, an exhaust cavity is formed between the rear cover 2 and the stator 1, and a deepened cavity is formed by deepening the depth of the rear cover 2 to ensure that the exhaust cavity has sufficient space to further improve the noise reduction effect and reduce pulses, an aluminum exhaust pipe 3 is arranged in the exhaust cavity, an exhaust channel 31 is opened inside the exhaust pipe 3, and two circular exhaust holes 32 connected to the exhaust channel 31 are opened on the outer wall of the exhaust pipe 3, and the two exhaust holes 32 are symmetrically arranged along the diameter direction of the exhaust pipe 3, and two airflows entering the exhaust pipe 3 from the exhaust cavity are formed through the exhaust holes 32, and an angle is formed between the two airflows, and the angle range is 30°-120°, which can reduce pulses during the counter-attack process, an exhaust port 33 is opened at one end of the exhaust pipe 3, and a heat exchange system is connected to the end of the exhaust pipe 3 where the exhaust port 33 is opened, and the heat exchange system is a thermal management module.
[0022] like Figure 2-Figure 3 As shown, a silencer structure is provided in the exhaust cavity, including a silencer pipe 4 integrally formed with the exhaust pipe 3, the silencer pipe 4 is located in the middle of the exhaust pipe 3, and the reduction of the exhaust cavity caused by the silencer structure can be compensated by deepening the cavity. The silencer structure includes an aluminum silencer pipe 4. Aluminum is easy to process and form, and is convenient for manufacturing an integrally formed exhaust pipe 3 and silencer pipe 4. The integrally formed design reduces the number of components, making the entire silencer structure more compact, occupying less space, reducing the steps of manufacturing and assembly, and thus reducing production costs. A silencer channel 41 connected to the exhaust channel 31 is provided inside the silencer pipe 4. The silencer channel 41 is arranged around the exhaust channel 31 and extends along the extension direction of the exhaust channel 31, presenting an annular cavity structure, and is coaxially arranged with the exhaust channel 31, which can reduce the turbulence generated during the exhaust process, and thus can reduce the noise caused by the turbulence. The annular cavity structure of the silencer pipe 4 extends the propagation path of the sound wave. The number of times the sound wave is reflected in the silencer channel 41 is increased, thereby increasing the propagation distance, thereby increasing the chance of sound wave energy dissipation, optimizing the absorption and scattering of sound waves, effectively reducing the noise generated during the operation of the electric compressor, reducing space occupancy, and improving the integration of the electric compressor.
[0023] like Figure 1-Figure 3As shown, the ratio of the diameter of the silencer channel 41 to the diameter of the exhaust channel 31 is greater than 2, and the ratio of the length of the exhaust channel 31 to the length of the silencer channel 41 is greater than 3. The reflection area of the sound wave in the silencer channel 41 is larger, which increases the number of interactions between the sound wave and the channel wall, resulting in more efficient sound energy dissipation. The silencer channel 41 provides a sound wave propagation path, so that the sound wave has more opportunities to lose energy when propagating in the channel, and increasing the channel diameter helps to reduce the turbulence of the airflow when passing through. Turbulence will produce additional noise, and a smoother airflow helps to reduce the generation of these additional noises. The transition between the silencer channel 41 and the exhaust channel 31 is provided with an oblique angle or a rounded corner, which helps to improve the smoothness of gas discharge. By reducing turbulence, the silencer structure can more effectively capture and dissipate noise, thereby reducing the space used to eliminate the additional noise caused by turbulence, thereby reducing the space occupied by the silencer structure.
[0024] Working principle: Figure 1-Figure 3 As shown, when the compressor is running, the compressed gas flows into the exhaust chamber, and the gas enters the exhaust pipe 3. The exhaust pipe 3 and the silencer pipe 4 are designed as an integral part. The silencer channel 41 has an annular cavity structure, which can effectively scatter and absorb sound waves, thereby reducing sound energy. The treated gas is discharged through the outlet pipe. The integral structure of the exhaust pipe 3 and the silencer pipe 4 simplifies the assembly and maintenance process, improves the overall durability and reliability, and optimizes the path of the airflow in the whole process, reduces turbulence and pressure loss, and thus improves the operating efficiency of the electric compressor.
[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A silencer structure, comprising a static plate (1), wherein the static plate (1) is detachably connected to a rear cover (2), an exhaust cavity is formed between the rear cover (2) and the static plate (1), an exhaust pipe (3) is arranged in the exhaust cavity, an exhaust passage (31) is provided inside the exhaust pipe (3), and the characteristics are: The outer wall of the exhaust pipe (3) is provided with a plurality of exhaust holes (32) which are in communication with the exhaust channel (31); a silencer structure is provided in the exhaust cavity; the silencer structure comprises a silencer pipe (4) fixed in the middle of the exhaust pipe (3); a silencer channel (41) is provided inside the silencer pipe (4); the silencer channel (41) is arranged around the exhaust channel (31) and extends along the extension direction of the exhaust channel (31).
2. The sound-absorbing structure according to claim 1, characterized in that: An exhaust port (33) is provided at one end of the exhaust pipe (3), and a heat exchange system is fixedly connected to the end of the exhaust pipe (3) provided with the exhaust port (33).
3. The sound-absorbing structure according to claim 2, characterized in that: The muffler channel (41) is an annular cavity structure that is in communication with the exhaust channel (31).
4. The sound-absorbing structure according to claim 3, characterized in that: The muffler channel (41) is coaxially arranged with the exhaust channel (31).
5. The sound-absorbing structure according to claim 2, characterized in that: The rear cover (2) is provided with a deepened cavity, and the deepened cavity is communicated with the exhaust cavity.
6. The sound absorbing structure according to claim 2, characterized in that: The number of the exhaust holes (32) is an even number, and the exhaust holes (32) are symmetrically arranged along the diameter direction of the exhaust pipe (3).
7. The sound-absorbing structure according to claim 3, characterized in that: The exhaust pipe (3) and the silencer pipe (4) are integrally formed.
8. The sound absorbing structure according to claim 4, characterized in that: A bevel or rounded corner is provided at the transition between the muffler channel (41) and the exhaust channel (31).
9. An electric compressor, characterized in that: The invention comprises the sound-absorbing structure as described in any one of claims 1 to 8.