Air supplement baffle and compressor and air conditioner using the same

Abstract

The present invention provides an air-supplementing baffle and a compressor and air conditioner using the same, relating to the technical field of compressors and solving problems in the prior art. The air-supplementing baffle includes a base having a radial liquid injection channel, the liquid injection channel forming a penetrating chute on the end face of the base, and the chute extending radially along the base; the air-supplementing baffle also includes a sliding air-supplementing structure, the sliding air-supplementing structure having an injection channel and an air-supplementing channel that are interconnected, the sliding air-supplementing structure being integrally inserted into the liquid injection channel and the chute, and the sliding air-supplementing structure being able to move radially forward and backward to change the distance of the air-supplementing channel from the center of the base. The compressor uses the air-supplementing baffle, and the air conditioner uses the compressor. Compared with the prior art, the present invention can realize the change of the position of the air-supplementing channel, so that the air-supplementing baffle can be used for compressors with different displacements.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, in particular to an air-supplementing baffle and a compressor and an air conditioner using the same. Background Art

[0002] With the advancement of technology, users have higher and higher requirements for the energy efficiency of air conditioners. Air supply and reheat technology can enable air conditioners to maintain high capacity and high energy efficiency in a variety of environments. As the core component of air conditioners, the improvement of air supply and reheat technology has become a major indicator.

[0003] Existing baffle gas replenishment Figure 9 As shown in the figure, the air supply baffle has a fixed air supply port, and the injection needle is fixed in the spray channel. There is a problem that each baffle can only be used for a single series of single displacement compressors, and the existing baffles cannot all achieve the optimal energy efficiency value under different refrigerants, and have no effect of noise reduction and temperature reduction and efficiency improvement. Summary of the Invention

[0004] The purpose of the present invention is to design an air-supplementing baffle and a compressor and an air conditioner using the same, so that the air-supplementing baffle can be used for compressors with different displacements.

[0005] The present invention is achieved through the following technical solutions:

[0006] An air replenishing baffle comprises a base, the base having a radial liquid spraying channel, the liquid spraying channel forming a penetrating chute on the end surface of the base, the chute extending in the radial direction of the base;

[0007] The air-supply baffle also includes a sliding air-supply structure, which has an injection channel and an air-supply channel that are interconnected. The sliding air-supply structure is inserted as a whole into the spray channel and the slide groove. The sliding air-supply structure can move radially back and forth to change the distance between the air-supply channel and the center of the base.

[0008] When the above-mentioned setting structure is adopted, the end face of the air-supply baffle has a slide groove connected to the injection channel, and a sliding air-supply structure is installed in the injection channel and the slide groove. The distance between the air-supply channel and the center of the air-supply baffle can be indirectly changed by adjusting the distance between the sliding air-supply structure and the center of the air-supply baffle, so that the air-supply baffle can be used for compressors with different displacements.

[0009] In order to further better realize the present invention, the following setting structure is particularly adopted: the sliding air-replenishing structure includes an injection needle and a slider arranged at the end of the injection needle, the injection channel radially penetrates the injection needle and connects to the air-replenishing channel, the injection needle is slidably inserted into the liquid spray channel, and the slider slides in cooperation with the slide groove.

[0010] In order to further better implement the present invention, the following setting structure is particularly adopted: a retractable component is provided in the slide groove, and the two ends of the retractable component respectively abut the base and the head end of the slider.

[0011] To further better implement the present invention, the following configuration is particularly adopted: the injection needle and the slider are two independent components, the head end of the slider abuts the retractable component, and the tail end of the slider abuts the head end of the injection needle.

[0012] When the above-mentioned setting structure is adopted, the slider and the injection needle can be disassembled and replaced from each other. They can be replaced separately according to the wear condition, or appropriate sliders or injection needles can be replaced according to different compressors and different refrigerants without having to replace the entire sliding air supply structure.

[0013] In order to further better realize the present invention, the following setting structure is particularly adopted: the slider includes a slider and a baffle fixedly connected to each other, the air supply channel is opened in the slider, the slider slides in conjunction with the slide groove, and there is a cavity between the slider and the spray channel into which the refrigerant can be sprayed, the baffle slides in conjunction with the spray channel, and the baffle is used to block the refrigerant sprayed from the injection channel into the cavity so that the refrigerant flows into the air supply channel.

[0014] When the above-mentioned structure is adopted, the refrigerant is blocked by the baffle to prevent refrigerant leakage, so that the refrigerant enters the air supply channel and is sprayed into the cylinder.

[0015] In order to further better realize the present invention, the following setting structure is particularly adopted: the base has an annular groove with its center as the center of the circle, and the annular groove forms two openings in the liquid spray channel; when the sliding air supply structure moves, the two openings can be fully or partially exposed to the cavity and connected to the cavity.

[0016] When the above-mentioned setting structure is adopted, the gas refrigerant will enter the cavity through the injection channel and then enter the annular groove from the opening and circulate in the annular groove. On the one hand, it provides a buffer channel for the refrigerant airflow, which can reduce the airflow pulsation and thus reduce the noise of the compressor operation. On the other hand, the partition is filled with medium-temperature and medium-pressure gas, so it can reduce the temperature, thereby indirectly reducing the exhaust problem and improving the performance of the compressor.

[0017] To further better implement the present invention, the following configuration is particularly adopted: the aperture of the annular groove is denoted as d2, and the radial wall thickness of the baffle is denoted as h3, and the following condition is satisfied: d2≤h3.

[0018] When the above-mentioned setting structure is adopted, the radial wall thickness of the baffle is made smaller than the aperture of the ring groove, ensuring that the ring groove plays the role of noise reduction and efficiency improvement, and preventing the baffle from failing to cover the opening of the ring groove and causing the refrigerant to leak out of the cavity from the head end of the baffle.

[0019] In order to further better implement the present invention, the following configuration is particularly adopted: the slider partially blocks the injection channel of the injection needle.

[0020] When the above-mentioned setting structure is adopted, the slider can adjust the degree of blocking the injection channel according to different refrigerants. The slider moves in the slide groove and indirectly changes the position of the air supply channel by controlling the position of the slider in the slide groove, so that compressors in the same series with different displacements and different refrigerants can achieve the highest energy efficiency.

[0021] In order to further better realize the present invention, the following setting structure is particularly adopted: the injection needle is provided with a welding block, the welding block is slidably fitted in the slide groove, the head end of the welding block abuts the slider, and the tail end of the welding block is located outside the slide groove.

[0022] When the above-mentioned setting structure is adopted, the welding block corresponds to the slider. Changing the position of the injection needle can enable the welding block to push the slider to change the air replenishment position, and the welding block is partially located in the slide groove, which can increase the smoothness of the movement of the sliding air replenishment structure.

[0023] In order to further better realize the present invention, the following setting structure is particularly adopted: the outer end face of the slider, the outer end face of the welding block and the end face of the base are flush, the axial thickness of the slider is recorded as h1, the wall thickness of the outer end face of the welding block from the inner wall of the injection needle is recorded as h2, and the inner diameter of the injection channel of the injection needle is recorded as d1, then it satisfies: h2

[0024] To further better implement the present invention, the following configuration is particularly adopted: when using R134a, n satisfies: 1 / 3≤n≤1 / 2;

[0025] When using R22 / R290, n satisfies: 1 / 2≤n≤3 / 4;

[0026] When using R404a / R407c, n satisfies: 3 / 4≤n≤4 / 5;

[0027] When using R410a / R32, n satisfies: 4 / 5≤n≤5 / 6.

[0028] The present invention further provides a compressor comprising the above-mentioned air-supplementing baffle.

[0029] When the above-mentioned setting structure is adopted, the air supply baffle can adjust the air supply channel according to the compressors of different displacements in the same series, is suitable for a variety of compressors, and can also replace different sliders according to different refrigerants, which can reduce the production cost and modification cost of the compressor.

[0030] ​The present invention further provides an air conditioner comprising the above-mentioned compressor.

[0031] The present invention has the following advantages and beneficial effects:

[0032] In the present invention, the end face of the air-supply baffle has a slide groove connected to the injection channel, and a sliding air-supply structure is installed in the injection channel and the slide groove. The distance between the air-supply channel and the center of the air-supply baffle can be indirectly changed by adjusting the distance between the sliding air-supply structure and the center of the air-supply baffle, so that the air-supply baffle can be used for compressors with different displacements. The air-supply baffle can adjust the air-supply channel according to compressors with different displacements in the same series, and is suitable for a variety of compressors. Different sliders can also be replaced according to different refrigerants, which can reduce the production cost and modification cost of compressors and air conditioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a structural diagram of the base;

[0035] Figure 2 It is a longitudinal section diagram of the base;

[0036] Figure 3 is a cross-sectional schematic diagram of the base;

[0037] Figure 4 is a schematic longitudinal section of the partition;

[0038] Figure 5 This is a schematic diagram of the position of the slider for the smallest displacement compressor in the same series;

[0039] Figure 6 This is a schematic diagram of the position of the slider for the compressor of the same series with an intermediate displacement;

[0040] Figure 7 This is a schematic diagram of the position of the slider for the compressor with the maximum displacement in the same series;

[0041] Figure 8 It is a structural diagram of the slider;

[0042] Figure 9 It is a structural diagram of an existing air supplement baffle;

[0043] The following are marked in the figure:

[0044] 1-base; 2-slide; 3-air supply channel; 4-slider; 4a-slide; 4b-baffle; 5-coil spring; 6-welding block; 7-ring groove; 8-spring seat; 9-cavity; 10-injection needle; 11-spray channel. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0046] The radial direction is considered to be a direction that is coincident with and parallel to the radial direction of the gas supplement baffle, and the axial direction is considered to be a direction that is coincident with and parallel to the axial direction of the gas supplement baffle.

[0047] Example 1:

[0048] This embodiment discloses an air-supplementing baffle, which can be used for compressors with different displacements, such as Figures 1-8 As shown, it is particularly configured as follows:

[0049] The air-supply baffle comprises a disc-shaped base 1 and a sliding air-supply structure. The air-supply baffle can be used synchronously with an upper flange and a lower flange.

[0050] The base 1 has a circular hole spray channel 11, which extends in the radial direction of the base 1. The spray channel 11 forms a chute 2 on the upper end surface of the base 1 that passes through the upper end surface of the base 1. The length direction of the chute 2 is consistent with the length direction of the spray channel 11. They both extend in the radial direction of the base 1. The chute 2 is located directly above the spray channel 11, and the groove width of the chute 2 is smaller than the inner diameter of the spray channel 11.

[0051] The sliding air-supply structure can be an integrated structural component, for example, the sliding air-supply structure has an injection channel and an air-supply channel 3 processed by a drill bit, the injection channel and the air-supply channel 3 are connected to each other, the sliding air-supply structure is inserted into the liquid injection channel 11 and the slide 2 as a whole and realizes sliding cooperation with the liquid injection channel 11 and the slide 2 respectively through partial structures, so that the sliding air-supply structure can move back and forth radially to change the distance between the air-supply channel 3 and the center of the base 1. The sliding air-supply structure can also be an integrated welded component, for example, it is welded by the existing injection needle 10 and the slider 4, so that the sliding air-supply structure can be manufactured and obtained by welding the slider 4, for example, the sliding air-supply structure includes an injection needle 10 and a slider 4 welded to the head end of the injection needle 10, the injection channel radially penetrates the injection needle 10 and is connected to the air-supply channel 3, the injection needle 10 is slidably inserted into the liquid injection channel 11, and the slider 4 is slidably cooperated with the slide 2.

[0052] The end surface of the air-supplement baffle features a chute 2 that connects to the liquid injection channel 11. A slidable air-supplement structure is installed within the liquid injection channel 11 and the chute 2. Adjusting the distance between the sliding air-supplement structure and the center of the air-supplement baffle indirectly changes the distance between the air-supplement channel 3 and the center of the air-supplement baffle. Because compressors of different displacements use rollers with different outer diameters, the required air-supplement port locations also differ. Therefore, the air-supplement baffle can adjust the position of the air-supplement channel 3 to accommodate compressors of varying displacements.

[0053] A retractable component can be arranged between the slider 4 and the base 1. The retractable component can be a spring or a coil spring 5. For example, a radially placed coil spring 5 is arranged in the slide groove 2, and the head end and tail end of the coil spring 5 are respectively abutted against the base 1 and the head end of the slider 4.

[0054] Preferably, the sliding air-supply structure can adopt a split structure, for example, the injection needle 10 and the slider 4 are two independent parts, the head end of the slider 4 abuts the tail end of the coil spring 5, and the tail end of the slider 4 abuts the head end of the injection needle 10. The coil spring 5 uses its elastic force to press the slider 4 against the head end of the injection needle 10, so that the injection needle 10 can be adjusted back and forth to maintain the tracking ability of the slider 4. When the slider 4 and the injection needle 10 are designed to be detachable and replaceable from each other, they can be replaced separately according to wear, or the appropriate slider 4 or injection needle 10 can be replaced according to different compressors and different refrigerants, without having to replace the entire sliding air-supply structure.

[0055] Preferably, the injection needle 10 is provided with a welding block 6, which is slidably fitted into the chute 2, with the head end of the welding block 6 abutting the slider 4 and the tail end of the welding block 6 located outside the chute 2. The welding block 6 corresponds to the slider 4, and changing the position of the injection needle 10 allows the welding block 6 to push the slider 4 to change the gas replenishment position. The welding block 6 is partially located in the chute 2, which can increase the smoothness of the movement of the sliding gas replenishment structure.

[0056] like Figure 5-7 As shown in the figure, there are three different displacement compressors in the same series, and the position comparison diagram of the air supply channel is shown in the figure. Figure 5 This is a structural diagram for the minimum displacement. At this time, the coil spring 5 is at its maximum compression, and the distance between the air supply channel 3 and the center of the air supply baffle is the smallest. Figure 6 This is a schematic diagram of the structure of the air supply baffle for the intermediate displacement. At this time, the coil spring 5 is at the intermediate compression amount, and the distance between the air supply channel 3 and the center of the air supply baffle is moderate. Figure 7 This is a structural diagram of the air supplement baffle for maximum displacement. At this time, the coil spring 5 is at the minimum compression amount, and the distance between the air supplement channel 3 and the center of the air supplement baffle is the largest.

[0057] Example 2:

[0058] This embodiment is a further optimization based on the above embodiment. To better realize the present invention, it has the effects of reducing noise and lowering temperature to improve efficiency. In particular, the following configuration structure is adopted:

[0059] The slider 4 includes a cubic slider 4a and a baffle 4b designed to imitate the shape of the injection channel, which are fixed to each other. The head end of the slider 4a has a spring seat 8, and the tail end of the coil spring 5 is arranged in the spring seat 8. The slider 4 is preferably an integrated structural part. The air supply channel 3 is opened in the slider 4a, and the slider 4a slides with the slide groove 2. There is a gap between the bottom of the slider 4a and the bottom of the injection channel 11. The baffle 4b slides with the injection channel 11, and there is also a gap between the baffle 4b and the injection channel. The baffle 4b blocks the refrigerant to prevent refrigerant leakage, so that a cavity 9 for spraying refrigerant is provided between the slider 4a and the injection channel 11. The baffle 4b is used to block the refrigerant sprayed into the cavity 9 from the injection channel, and allows the refrigerant to flow into the air supply channel 3, so that the refrigerant enters the air supply channel 3 and is sprayed into the cylinder.

[0060] The base 1 is a casting, and a coaxial annular groove 7 is machined inside it. The annular groove 7 is an air hole connected end to end with the center of the base 1 as the center of the circle. The annular groove 7 forms two openings on the surface of the liquid injection channel 11. When the sliding air supply structure moves, the cavity 9 moves with the movement of the injection needle 10 and the slider 4. Both openings can be fully or partially exposed to the cavity 9 and connected to the cavity 9. The replenished refrigerant will enter the cavity 9 through the injection channel and then enter the annular groove 7 from the opening and circulate in the annular groove 7. On the one hand, it provides a buffer channel for the refrigerant air flow, which can reduce the air flow pulsation and thus reduce the noise of the compressor operation. On the other hand, the partition is replenished with medium-temperature and medium-pressure gas, so it can reduce the temperature, thereby indirectly reducing the exhaust problem and improving the performance of the compressor.

[0061] Preferably, to prevent refrigerant leakage caused by the slider 4 failing to shield the annular groove 7 when the slider 4 is in its outermost position, the diameter of the annular groove 7 is denoted as d2, and the radial wall thickness of the baffle 4b is denoted as h3, so that the relationship d2 ≤ h3 is satisfied. The radial wall thickness of the baffle 4b is smaller than the diameter of the annular groove 7. This ensures that the annular groove 7 performs its noise reduction and efficiency-enhancing functions while preventing refrigerant leakage from the head end of the baffle 4b out of the cavity 9 due to the baffle 4b failing to shield the opening of the annular groove 7.

[0062] Example 3:

[0063] This embodiment is a further optimization based on the above embodiment. To better realize the present invention and achieve the optimal energy efficiency when using different refrigerants, the following configuration is particularly adopted:

[0064] The bottom of the slider 4a can partially block the injection channel of the injection needle 10. The slider 4a can adjust the degree of blocking the injection channel according to different refrigerants. It is only necessary to manufacture sliders 4 with sliders 4a of different sizes. The slider 4a moves in the chute 2, and the position of the air supply channel 3 is indirectly changed by controlling the position of the slider 4 in the chute 2, so that compressors of the same series with different displacements and different refrigerants can achieve the highest energy efficiency.

[0065] Among them, the outer end face of the slider 4a, the outer end face of the welding block 6 and the end face of the base 1 are flush, the axial thickness of the slider 4a is recorded as h1, the wall thickness of the outer end face of the welding block 6 from the inner wall of the injection needle 10 is recorded as h2, and the inner diameter of the injection channel of the injection needle 10 is recorded as d1, then the relationship is satisfied: h2

[0066] Specifically, when using R134a refrigerant, n should satisfy: 1 / 3≤n≤1 / 2; when using R22 / R290 refrigerant, n should satisfy: 1 / 2≤n≤3 / 4; when using R404a / R407c refrigerant, n should satisfy: 3 / 4≤n≤4 / 5; when using R410a / R32 refrigerant, n should satisfy: 4 / 5≤n≤5 / 6, so that compressors in the same series with different displacements and different refrigerants can achieve the highest energy efficiency.

[0067] Example 4:

[0068] This embodiment further provides a compressor based on the above embodiment, and particularly adopts the following configuration structure:

[0069] The compressor of this embodiment utilizes the air-injection baffle of the aforementioned embodiment, which can be used with either the upper flange or the lower flange. This air-injection baffle can adjust the air-injection passage 3 to accommodate compressors of different displacements within the same series, making it suitable for a variety of compressors. Furthermore, different sliders 4 can be replaced to accommodate different refrigerants, thereby reducing the production and modification costs of the compressor.

[0070] Example 5:

[0071] This embodiment further provides an air conditioner based on the above embodiment, and particularly adopts the following configuration structure:

[0072] The air conditioner of this embodiment adopts the above-mentioned compressor. The air supply baffle of the compressor can meet the use of compressors with different displacements in the same series by changing the position of the air supply channel 3, and can enable the compressors using different refrigerants to achieve the highest energy efficiency.

[0073] ​The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An air-compensating baffle, comprising a base (1), wherein the base (1) has a radial liquid injection channel (11), characterized in that: The liquid spraying channel (11) forms a penetrating chute (2) on the end surface of the base (1), and the chute (2) extends along the radial direction of the base (1); The air-supplementing baffle further comprises a sliding air-supplementing structure, wherein the sliding air-supplementing structure comprises an injection channel and an air-supplementing channel (3) which are interconnected, and the sliding air-supplementing structure is integrally inserted into the liquid-spraying channel (11) and the chute (2), and the sliding air-supplementing structure can move radially forward and backward to change the distance between the air-supplementing channel (3) and the center of the base (1); The sliding air-replenishing structure comprises an injection needle (10) and a slider (4) arranged at the head end of the injection needle (10); the injection channel radially penetrates the injection needle (10) and communicates with the air-replenishing channel (3); the injection needle (10) is slidably inserted into the liquid injection channel (11); the slider (4) is slidably matched with the slide groove (2); The slider (4) includes a slider (4a) and a baffle (4b) fixedly connected to each other, the air supply channel (3) is opened in the slider (4a), the slider (4a) and the slide groove (2) are slidably matched, and a cavity (9) capable of spraying refrigerant is provided between the slider (4a) and the liquid injection channel (11), the baffle (4b) is slidably matched with the liquid injection channel (11), and the baffle (4b) is used to block the refrigerant sprayed from the injection channel into the cavity (9) so that the refrigerant flows into the air supply channel (3).

2. The air-supplementing baffle according to claim 1, characterized in that: A retractable component is provided in the slide groove (2), and two ends of the retractable component respectively abut against the base (1) and the head end of the slider (4).

3. The air-supplementing baffle according to claim 2, characterized in that: The injection needle (10) and the slider (4) are two independent components. The head end of the slider (4) abuts against the telescopic component, and the tail end of the slider (4) abuts against the head end of the injection needle (10).

4. The air-supplementing baffle according to claim 1, characterized in that: The base (1) has an annular groove (7) with its center as the center of the circle, and the annular groove (7) forms two openings in the liquid injection channel (11); when the sliding air supply structure moves, the two openings can be fully or partially exposed to the cavity (9) and communicate with the cavity (9).

5. The air-supplementing baffle according to claim 4, characterized in that: The aperture of the annular groove (7) is denoted as d2, and the radial wall thickness of the baffle (4b) is denoted as h3, and the following condition is satisfied: d2≤h3.

6. The air supplementing baffle according to claim 1, characterized in that: The slider (4a) partially blocks the injection channel of the injection needle (10).

7. The air-supplementing baffle according to claim 6, characterized in that: The injection needle (10) is provided with a welding block (6), the welding block (6) is slidably fitted in the slide groove (2), the head end of the welding block (6) abuts against the slider (4), and the tail end of the welding block (6) is located outside the slide groove (2).

8. The air supplementing baffle according to claim 7, characterized in that: The outer end surface of the slider (4a), the outer end surface of the welding block (6) and the end surface of the base (1) are flush, the axial thickness of the slider (4a) is recorded as h1, the wall thickness of the outer end surface of the welding block (6) from the inner wall of the injection needle (10) is recorded as h2, and the inner diameter of the injection channel of the injection needle (10) is recorded as d1, then the following conditions are satisfied: h2<h1≤h2+nd1, where 0<n<1.

9. The air supplementing baffle according to claim 8, characterized in that: When using R134a, n satisfies: 1 / 3≤n≤1 / 2; When using R22 / R290, n satisfies: 1 / 2≤n≤3 / 4; When using R404a / R407c, n satisfies: 3 / 4≤n≤4 / 5; When using R410a / R32, n satisfies: 4 / 5≤n≤5 / 6.

10. A compressor, characterized in that: The invention comprises the air-compensating baffle as described in any one of claims 1 to 9.

11. An air conditioner, characterized in that: Including the compressor according to claim 10.

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