Pumping structure capable of reducing noise and compressor
By setting a silence channel and exhaust channel in the pump structure of the compressor, adding the exhaust path and changing the exhaust path, the problem of insufficient silence capability of the existing compressor is solved, and the effect of reducing operating noise is achieved.
Patent Information
- Application Number
- CN202421811874.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The pump structure of the existing compressor has insufficient sound silencing capabilities during the exhaust process, especially the loss of low-frequency noise. In addition, the gas pressure is high during the lateral exhaust, which easily produces a hit sound, which increases operating noise.
A pump structure is designed, including an upper silencer cover, an upper support, a cylinder, a lower support and a lower silencer cover. By setting a silencer passage and an exhaust passage between these components, the exhaust path is increased and the exhaust path is changed to improve the silence effect.
By increasing the exhaust path and changing the exhaust path, the operating noise of the compressor, especially the transmission loss of low-frequency noise, is significantly reduced, and a better sound silencing effect is achieved.
Smart Images
Figure CN223152267U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of compressors, and particularly relates to a pump structure and a compressor for reducing noise. Background Art
[0002] With the improvement of living standards, people pay more and more attention to the quality of life, and air conditioners have also become highly popular household products.
[0003] While people are concerned about the energy efficiency ratio of air conditioners, the noise problem has gradually attracted people's attention. As the heart of an air conditioner and the main source of noise in an air conditioner, reducing the noise of the compressor is the direction we strive for.
[0004] The existing pump exhaust method of the compressor is upper exhaust or side exhaust on the muffler. Among them, for the upward exhaust method, the gas is discharged through the upper support, and then discharged from the compressor structure after passing through the upper muffler. Due to the short exhaust path, the muffling ability is effective, and the loss effect on low-frequency noise is small; as for the side exhaust method, when the gas pressure is high, it will produce a certain impact sound on the inner wall of the compressor housing, increasing the operating noise of the compressor. Content of the Utility Model
[0005] In order to solve the deficiencies of the existing technology, the utility model provides a pump structure and a compressor for reducing noise, achieving the purpose of changing the exhaust path, improving the transmission loss effect on low-frequency noise, and greatly reducing the operating noise of the compressor.
[0006] The technical purpose to be achieved by the utility model is realized through the following technical solutions:
[0007] The utility model provides a pump structure for reducing noise, which includes an upper muffler, an upper support, a cylinder block, a lower support, and a lower muffler connected in sequence from top to bottom;
[0008] The upper muffler includes an upper substrate and an upper cover body extending upward from the middle of the upper substrate, and the lower muffler includes a lower substrate and a lower cover body extending downward from the middle of the lower substrate;
[0009] The upper support and the lower support are respectively connected to the upper end face and the lower end face of the cylinder block. The upper substrate is connected to the upper end of the upper support, so that an upper muffling cavity is formed between the upper cover body and the upper end of the upper support. The lower substrate is connected to the lower end of the lower support, so that a lower muffling cavity is formed between the lower cover body and the lower end of the lower support;
[0010] A muffling channel is provided between the upper muffling cavity, the upper support, the cylinder block, the lower support, and the lower muffling cavity, and an exhaust channel is provided between the lower muffling cavity, the lower support, the cylinder block, the upper support, and the upper substrate.
[0011] In some implementations, the sound-absorbing channel includes a first flow hole formed in the upper support, a second flow hole formed in the cylinder block, and a third flow hole formed in the lower support;
[0012] The second flow hole communicates with the first flow hole and the third flow hole. The first flow hole communicates with the upper sound-absorbing cavity, and the third flow hole communicates with the lower sound-absorbing cavity, so as to achieve the purpose of increasing the exhaust path and achieve a better sound-absorbing effect.
[0013] In some implementations, the first flow hole, the second flow hole, and the third flow hole have the same aperture, so that gas can flow smoothly and quickly in the sound-absorbing channel.
[0014] In some implementations, the number of the first flow hole, the second flow hole, and the third flow hole is two or more, so as to separately divert the gas, improve the exhaust speed, and enhance the sound-absorbing effect at the same time.
[0015] In some implementations, the exhaust channel includes a first exhaust hole formed in the lower support, a second exhaust hole formed in the cylinder block, a third exhaust hole formed in the upper support, and a fourth exhaust hole formed in the upper substrate;
[0016] The lower sound-absorbing cavity, the first exhaust hole, the second exhaust hole, the third exhaust hole, and the fourth exhaust hole are connected to each other, so as to achieve the purpose of changing the exhaust path and reduce the operating noise of the compressor.
[0017] In some implementations, the first exhaust hole, the second exhaust hole, the third exhaust hole, and the fourth exhaust hole have the same aperture, so that gas can flow smoothly and quickly in the exhaust channel.
[0018] In some implementations, the aperture of the first flow hole is smaller than that of the first exhaust hole, which is convenient for the gas to be quickly discharged through the exhaust channel after passing through the sound-absorbing channel.
[0019] In some implementations, corresponding fixing holes are formed on the upper substrate, the upper support, the cylinder block, the lower support, and the lower substrate, which is convenient for aligning and assembling the components of the pump structure and improving the assembly efficiency.
[0020] In some implementations, the number of the fixing holes on the upper substrate is multiple, and the multiple fixing holes are evenly spaced, which improves the connection stability and uniformity of the components of the pump structure.
[0021] The present utility model further provides a compressor, including the pump structure described in any one of the above.
[0022] In summary, the present utility model has at least the following advantages:
[0023] 1. For the pump structure for reducing noise provided by the present utility model, by arranging a sound absorption channel between the upper sound absorption cavity, the upper support, the cylinder block, the lower support and the lower sound absorption cavity, the exhaust path is increased, thereby improving the sound absorption ability. At the same time, by arranging an exhaust channel between the lower sound absorption cavity, the lower support, the cylinder block, the upper support and the upper substrate, the exhaust path is changed, and the transmission loss effect on low-frequency noise is improved.
[0024] 2. For the compressor provided by the present utility model, by increasing the exhaust path of the pump structure and changing the exhaust path, the purpose of reducing the running noise is achieved. Description of the Drawings
[0025] Figure 1 Schematic diagram of the pump structure of Embodiment 1 of the present utility model;
[0026] Figure 2 Cross-sectional view of the pump structure of Embodiment 1 of the present utility model;
[0027] Figure 3 Schematic diagram of the assembly of the upper support and the upper cover body of Embodiment 2 of the present utility model;
[0028] Figure 4 Schematic diagram of the upper support of Embodiment 2 of the present utility model;
[0029] Figure 5 Schematic diagram of the cylinder block of Embodiment 2 of the present utility model;
[0030] Figure 6 Schematic diagram of the lower support of Embodiment 2 of the present utility model;
[0031] Figure 7 Schematic diagram of the assembly of the lower support and the lower cover body of Embodiment 2 of the present utility model;
[0032] Figure 8 Schematic diagram of the compressor of Embodiment 3 of the present utility model;
[0033] 100. Pump structure; 110. Fixed hole;
[0034] 200. Upper sound absorption cover; 210. Upper substrate; 211. Fourth exhaust hole; 220. Upper cover body;
[0035] 300. Upper support; 310. First flow hole; 320. Third exhaust hole;
[0036] 400. Cylinder block; 410. Second flow hole; 420. Second exhaust hole;
[0037] 500, Lower support; 510, Third flow hole; 520, First exhaust hole;
[0038] 600, Lower silencer cover; 610, Lower base plate; 620, Lower cover body;
[0039] 700, Upper silencing cavity;
[0040] 800, Lower silencing cavity;
[0041] 900, Compressor;
[0042] M, Silencing channel;
[0043] N, Exhaust channel. Detailed implementation mode
[0044] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.
[0045] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0046] Example 1:
[0047] Please refer to Figure 1 and Figure 2 , A pump structure for reducing noise, the pump structure 100 includes an upper silencer cover 200, an upper support 300, a cylinder block 400, a lower support 500 and a lower silencer cover 600 which are connected in sequence from top to bottom.
[0048] The upper silencer cover 200 includes an upper base plate 210 and an upper cover body 220 extending upward from the middle of the upper base plate 210. The upper base plate 210 is used to connect to the upper support 300 and define the upper cover body 220. The upper cover body 220 can be used to weaken or eliminate the airflow noise generated inside the compressor due to the change in cavity volume.
[0049] The lower silencer cover 600 includes a lower base plate 610 and a lower cover body 620 extending downward from the middle of the lower base plate 610. Similarly, the lower base plate 610 is used to connect to the lower support 500 and define the lower cover body 620. The lower cover body 620 can be used to weaken or eliminate the airflow noise generated inside the compressor due to the change in cavity volume.
[0050] The upper support 300 and the lower support 500 are respectively connected to the upper end face and the lower end face of the cylinder block 400. The upper substrate 210 is connected to the upper end of the upper support 300, so that an upper sound insulation cavity 700 is formed between the upper cover body 220 and the upper end of the upper support 300. The lower substrate 610 is connected to the lower end of the lower support 500, so that a lower sound insulation cavity 800 is formed between the lower cover body 620 and the lower end of the lower support 500.
[0051] A sound insulation channel M is provided between the upper sound insulation cavity 700, the upper support 300, the cylinder block 400, the lower support 500 and the lower sound insulation cavity 800, and the gas can play a certain sound insulation role through the sound insulation channel M; an exhaust channel N is provided between the lower sound insulation cavity 800, the lower support 500, the cylinder block 400, the upper support 300 and the upper substrate 210, and the gas can be discharged through the exhaust channel N.
[0052] It is known that a gas discharge port for discharging gas is provided on the traditional upper support 300, and a valve plate for reducing the gas flow rate is provided at the gas discharge port. During application, after the gas ejects the valve plate through the gas discharge port, it enters the upper sound insulation cavity 700 formed between the upper end of the upper support 300 and the upper cover body 220. After being blocked and sound-insulated by the upper cover body 220, it flows towards the sound insulation channel M. The sound insulation channel M is provided between the upper sound insulation cavity 700, the upper support 300, the cylinder block 400, the lower support 500 and the lower sound insulation cavity 800. Therefore, the gas first passes through the upper support 300, then the cylinder block 400, then the lower support 500 and the lower sound insulation cavity 800, and is blocked and sound-insulated by the lower cover body 620. Immediately afterwards, it flows towards the exhaust channel N. The exhaust channel N is provided between the lower sound insulation cavity 800, the lower support 500, the cylinder block 400, the upper support 300 and the upper substrate 210. Therefore, the gas passes through the lower support 500, then the cylinder block 400, then the upper support 300, and is discharged from the upper substrate 210.
[0053] A pump structure for reducing noise provided in this embodiment improves the sound insulation ability by increasing the exhaust path by providing a sound insulation channel M between the upper sound insulation cavity 700, the upper support 300, the cylinder block 400, the lower support 500 and the lower sound insulation cavity 800. At the same time, by providing an exhaust channel N between the lower sound insulation cavity 800, the lower support 500, the cylinder block 400, the upper support 300 and the upper substrate 210, the exhaust path is changed, and the transmission loss effect on low-frequency noise is improved.
[0054] Embodiment 2:
[0055] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the pump structure of the present invention. Please refer to Figures 3 - 7 .
[0056] The silencing passage M includes a first flow hole 310 formed in the upper support 300, a second flow hole 410 formed in the cylinder block 400, and a third flow hole 510 formed in the lower support 500. Among them, the second flow hole 410 communicates with the first flow hole 310 and the third flow hole 510. The first flow hole 310 communicates with the upper silencing cavity 700, and the third flow hole 510 communicates with the lower silencing cavity 800, so as to achieve the purpose of increasing the exhaust path and achieving a better silencing effect.
[0057] That is to say, under the action of the silencing passage M, gas can flow between the upper silencing cavity 700, the first flow hole 310, the second flow hole 410, the third flow hole 510 and the lower silencing cavity 800. Specifically, after the gas is ejected from the ejection port on the upper support 300 and pushes open the valve plate, it enters the upper silencing cavity 700. Due to the blocking effect of the upper silencing cover 200, the gas can only transfer from the upper silencing cavity 700 to the first flow hole 310, then passes through the second flow hole 410 and the third flow hole 510 and enters the lower silencing cavity 800. After being blocked by the lower silencing cavity 800, it is discharged towards the exhaust passage N.
[0058] Compared with the traditional way that the gas is ejected from the ejection port and exhausted upward by the upper silencing cover 200, in this embodiment, by setting the silencing passage M, the gas is silenced by the upper silencing cavity 700 and then flows downward to the lower silencing cavity 800 for silencing again, increasing the exhaust path and improving the silencing effect.
[0059] In some embodiments, the first flow hole 310, the second flow hole 410 and the third flow hole 510 have the same aperture, so that the gas can flow smoothly and quickly in the silencing passage M.
[0060] It can be understood that setting the first flow hole 310, the second flow hole 410 and the third flow hole 510 as through holes of the same size and making them aligned with each other is beneficial to the flow of gas. Among them, the first flow hole 310, the second flow hole 410 and the third flow hole 510 can all be circular through holes, elliptical through holes or waist-shaped through holes, etc. This example does not limit here and can be adjusted according to actual design requirements.
[0061] In some embodiments, the number of the first flow hole 310, the second flow hole 410 and the third flow hole 510 is two or more, so as to separate and drain the gas, improving the exhaust speed and the silencing effect at the same time.
[0062] For example, the number of the first flow holes 310, the second flow holes 410, and the third flow holes 510 is two. The two first flow holes 310 are arranged adjacent to each other. The two second flow holes 410 respectively correspond to the two first flow holes 310. Similarly, the two third flow holes 510 respectively correspond to the two second flow holes 410. After the gas enters the upper sound absorption cavity 700 through the air outlet, it can be separately diverted through the two first flow holes 310 and finally enter the lower sound absorption cavity 800 through the two third flow holes 510. Of course, according to actual design requirements, the number of each flow hole can also be three, four, etc.
[0063] In some embodiments, the exhaust passage N includes a first exhaust hole 520 formed on the lower support 500, a second exhaust hole 420 formed on the cylinder block 400, a third exhaust hole 320 formed on the upper support 300, and a fourth exhaust hole 211 formed on the upper substrate 210. The lower sound absorption cavity 800, the first exhaust hole 520, the second exhaust hole 420, the third exhaust hole 320, and the fourth exhaust hole 211 are communicated with each other to achieve the purpose of changing the exhaust path and reducing the operating noise of the compressor.
[0064] That is to say, under the action of the exhaust passage N, the gas can be discharged outward through the fourth exhaust hole 211 after passing through the first exhaust hole 520, the second exhaust hole 420, and the third exhaust hole 320. Specifically, after the gas enters the lower sound absorption cavity 800 through the sound absorption passage M, due to the blocking effect of the lower sound absorption cover 600, the gas turns from the sound absorption passage M to the exhaust passage N, passes through the first exhaust hole 520, the second exhaust hole 420, and the third exhaust hole 320, and is discharged outward through the fourth exhaust hole 211.
[0065] Compared with the traditional method of exhausting upward by the upper sound absorption cover 200 after the gas is discharged from the air outlet, in this embodiment, by setting the sound absorption passage M and the exhaust passage N, the exhaust path can be changed, which has an obvious effect on reducing noise.
[0066] In some embodiments, the first exhaust hole 520, the second exhaust hole 420, the third exhaust hole 320, and the fourth exhaust hole 211 have the same aperture, so that the gas can flow smoothly and quickly in the exhaust passage N.
[0067] It can be understood that setting the first exhaust hole 520, the second exhaust hole 420, the third exhaust hole 320, and the fourth exhaust hole 211 as through holes of the same size and making them aligned with each other is beneficial to the flow of the gas. Among them, the first exhaust hole 520, the second exhaust hole 420, the third exhaust hole 320, and the fourth exhaust hole 211 can all be circular through holes, elliptical through holes, waist-shaped through holes, etc. This example does not limit here and can be adjusted according to actual design requirements.
[0068] In some embodiments, the aperture diameter of the first flow hole 310 is smaller than that of the first exhaust hole 520, facilitating the rapid discharge of gas through the exhaust passage N after passing through the silencing passage M.
[0069] In some embodiments, corresponding fixing holes 110 are provided on the upper substrate 210, the upper support 300, the cylinder block 400, the lower support 500, and the lower substrate 610, facilitating the alignment and assembly of the components of the pumping structure and improving the assembly efficiency.
[0070] Furthermore, the number of the fixing holes 110 on the upper substrate 210 is multiple, and the multiple fixing holes 110 are evenly spaced, improving the connection stability and uniformity of the components of the pumping structure. It can be understood that the number and position distribution of the fixing holes 110 on the upper support 300, the cylinder block 400, the lower support 500, and the lower substrate 610 correspond to those on the upper substrate 210.
[0071] During specific assembly, the components can be aligned using the fixing holes 110 on each component, and then connecting components such as locking bolts are passed through the fixing holes 110 on each component to lock and connect the components.
[0072] Example 3:
[0073] Based on the above embodiments, this embodiment provides a compressor. Please refer to Figure 8 。
[0074] A compressor 900 includes the pumping structure 100 in any of the above embodiments.
[0075] The compressor provided by the present utility model realizes the purpose of reducing operating noise by increasing the exhaust path of the pumping structure and changing the exhaust path.
[0076] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0077] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0078] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0079] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0080] Although the description of the present utility model is made in combination with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.
Claims
1. A pump structure for reducing noise, characterized in that, The pump structure (100) includes a top silencer cover (200), an upper support (300), a cylinder block (400), a lower support (500), and a bottom silencer cover (600) that are connected in sequence from top to bottom; The top silencer cover (200) includes a top substrate (210) and a top cover body (220) that extends upward from the middle of the top substrate (210). The bottom silencer cover (600) includes a bottom substrate (610) and a bottom cover body (620) that extends downward from the middle of the bottom substrate (610); The upper support (300) and the lower support (500) are respectively connected to the upper end face and the lower end face of the cylinder block (400). The top substrate (210) is connected to the upper end of the upper support (300), so that an upper silencing cavity (700) is formed between the top cover body (220) and the upper end of the upper support (300). The bottom substrate (610) is connected to the lower end of the lower support (500), so that a bottom silencing cavity (800) is formed between the bottom cover body (620) and the lower end of the lower support (500); A silencing channel (M) is provided between the upper silencing cavity (700), the upper support (300), the cylinder block (400), the lower support (500), and the bottom silencing cavity (800). An exhaust channel (N) is provided between the bottom silencing cavity (800), the lower support (500), the cylinder block (400), the upper support (300), and the top substrate (210).
2. The noise-reducing pump structure according to claim 1, wherein The silencing channel (M) includes a first flow hole (310) opened on the upper support (300), a second flow hole (410) opened on the cylinder block (400), and a third flow hole (510) opened on the lower support (500); The second flow hole (410) communicates the first flow hole (310) and the third flow hole (510). The first flow hole (310) communicates with the upper silencing cavity (700), and the third flow hole (510) communicates with the bottom silencing cavity (800).
3. The noise-reducing pump structure according to claim 2, characterized in that, The first flow hole (310), the second flow hole (410), and the third flow hole (510) have the same aperture.
4. The noise-reducing pump structure according to claim 2, characterized in that, The number of the first flow hole (310), the second flow hole (410), and the third flow hole (510) is two or more.
5. The noise-reducing pump structure according to claim 3, wherein, The exhaust channel (N) includes a first exhaust hole (520) opened on the lower support (500), a second exhaust hole (420) opened on the cylinder block (400), a third exhaust hole (320) opened on the upper support (300), and a fourth exhaust hole (211) opened on the top substrate (210); The bottom silencing cavity (800), the first exhaust hole (520), the second exhaust hole (420), the third exhaust hole (320), and the fourth exhaust hole (211) are connected.
6. The noise-reducing pump structure according to claim 5, characterized in that, The first exhaust hole (520), the second exhaust hole (420), the third exhaust hole (320), and the fourth exhaust hole (211) have the same aperture.
7. The noise-reducing pump structure according to claim 6, wherein The aperture diameter of the first flow hole (310) is smaller than that of the first exhaust hole (520).
8. The noise-reducing pump structure according to claim 1, characterized in that, Corresponding fixing holes (110) are formed on the upper substrate (210), the upper support (300), the cylinder block (400), the lower support (500) and the lower substrate (610).
9. The noise-reducing pump structure according to claim 8, characterized in that, The number of the fixing holes (110) on the upper substrate (210) is multiple, and the multiple fixing holes (110) are evenly spaced apart.
10. A compressor, characterized in that, It includes the pumping structure (100) according to any one of claims 1-9.