Anti-cracking noise reduction cover, compressor pump body structure and compressor

Abstract

The utility model relates to an anti-cracking noise reduction cover, a compressor pump body structure and a compressor, the anti-cracking noise reduction cover comprises a noise reduction cover body, the noise reduction cover body is provided with an air containing cavity, a first exhaust cavity, a second exhaust cavity and a through hole, and the through hole is formed in the middle of the noise reduction cover body and suitable for being arranged on a crankshaft to be installed in a sleeving mode; the gas containing cavity is used for receiving gas exhausted from the pump body structure, the first exhaust cavity is provided with a first exhaust hole, the second exhaust cavity is provided with a second exhaust hole, the first exhaust cavity and the second exhaust cavity are located on the two sides of the gas containing cavity respectively, and the first exhaust cavity and the gas containing cavity are communicated to form a first communication channel. The minimum width of the first communicating channel is D, the minimum width of the second communicating channel is d, d is smaller than or equal to D, and d is larger than or equal to 10 mm and smaller than or equal to 15 mm. According to the anti-cracking noise reduction cover, under the condition that the noise reduction effect and the refrigerant flux are guaranteed, the impact of high-pressure gas on the anti-cracking noise reduction cover can be effectively reduced, and the anti-cracking noise reduction cover is prevented from being broken and damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field especially is related to a kind of anti-cracking sound-absorbing cover, compressor pump body structure and compressor. BACKGROUND

[0002] The working principle of rotary compressor is to divide cylinder into suction and exhaust cavity by slider, electromagnetic field is generated by stator coil when motor is powered, and power is generated by rotor cutting magnetic line to drive crankshaft rotation of pump body to make piston rotate in cylinder and compress refrigerant. Wherein, under the action of crankshaft, the volume of suction and exhaust cavity is changed constantly, low-temperature and low-pressure gaseous refrigerant is inhaled and compressed into high-temperature and high-pressure gaseous refrigerant, and then discharged from pump body, so as to cycle.

[0003] At present, the displacement of double-cylinder type compressor on market is larger under high-frequency working condition, so that high-temperature and high-pressure gas discharged from double-cylinder compression structure is discharged from upper sound-absorbing cover, so that the internal vortex of upper sound-absorbing cover is more prone to local fracture and damage due to repeated impact of high-temperature and high-pressure gas, so as to reduce the performance of compressor. SUMMARY

[0004] Therefore, the utility model discloses the purpose to overcome the deficiency of prior art, provide a kind of anti-cracking sound-absorbing cover, compressor pump body structure and compressor, under the condition of guaranteeing sound-absorbing effect and refrigerant flux, the impact of high-pressure gas on anti-cracking sound-absorbing cover can be effectively reduced, and breakage is prevented.

[0005] To achieve the above object, the utility model embodiment first aspect provides an anti-cracking sound-absorbing cover, including sound-absorbing cover body, the sound-absorbing cover body has gas-containing cavity, first exhaust cavity, second exhaust cavity, and the through hole in the middle part of the sound-absorbing cover body is set, and it is suitable for being set on the crankshaft to be installed;The gas-containing cavity is used to receive gas discharged from pump body structure, the first exhaust cavity is provided with first exhaust hole, the second exhaust cavity is provided with second exhaust hole, the first exhaust cavity and the second exhaust cavity are located at the two sides of the gas-containing cavity respectively, the first exhaust cavity is communicated with the gas-containing cavity and forms first communication channel, the second exhaust cavity is communicated with the gas-containing cavity and forms second communication channel, the minimum width of the first communication channel is D, the minimum width of the second communication channel is d, d≤D, and 10mm≤d≤15mm.

[0006] Therefore, according to the anti-cracking sound insulation cover, the minimum width D of the second communication channel is greater than or equal to the minimum width d of the second communication channel, and the minimum width d of the second communication channel is designed to be 10mm≤d≤15mm, so that the flow rate of high-pressure refrigerant can be improved by designing the width of the first communication channel and the second communication channel, and the vortex phenomenon of the first communication channel and the second communication channel can be effectively improved, and the sound insulation exhaust is performed through the first exhaust cavity and the second exhaust cavity respectively, so that the anti-cracking sound insulation cover can effectively disperse the impact force of high-pressure gas on the anti-cracking sound insulation cover, and effectively prevent the anti-cracking sound insulation cover from being damaged, thereby ensuring the performance of the compressor.

[0007] As an embodiment, the first exhaust cavity is provided with a third exhaust hole, and the area of the third exhaust hole is smaller than the area of the first exhaust hole.

[0008] As an embodiment, the axis of the third exhaust hole is parallel to the axis of the first exhaust hole and the axis of the through hole, the third exhaust hole is located between the first exhaust hole and the through hole, and the center of the third exhaust hole is located on the line path of the center of the first exhaust hole and the center of the through hole.

[0009] As an embodiment, the second exhaust cavity is provided with a fourth exhaust hole, and the area of the fourth exhaust hole is smaller than the area of the second exhaust hole.

[0010] As an embodiment, the axis of the fourth exhaust hole is parallel to the axis of the second exhaust hole and the axis of the through hole, the fourth exhaust hole is located between the second exhaust hole and the through hole, and the center of the fourth exhaust hole is located on the line path of the center of the second exhaust hole and the center of the through hole.

[0011] As an embodiment, the sum of the opening area of the first exhaust hole and the opening area of the second exhaust hole is S, and S≤190mm 2 .

[0012] As an embodiment, a side hole is provided on the outer side wall of the gas-containing cavity.

[0013] As an embodiment, the edge of the through hole is radially outwardly recessed to form a semilunar hole, and the semilunar hole is in communication with the first communication channel or the second communication channel.

[0014] The utility model embodiment second aspect provides a kind of compressor pump body structure, including the anti-cracking sound cover of any embodiment above. According to the compressor of the utility model embodiment, the impact of high pressure gas on the anti-cracking sound cover can be effectively reduced, and its rupture damage is prevented by improving the structure of the anti-cracking sound cover under the condition of guaranteeing sound reduction effect and refrigerant flux.

[0015] The utility model embodiment third aspect provides a kind of compressor, including the compressor pump body structure of any embodiment above. According to the compressor of the utility model embodiment, the impact of high pressure gas on the anti-cracking sound cover can be effectively reduced, and its rupture damage is prevented by improving the structure of the anti-cracking sound cover under the condition of guaranteeing sound reduction effect and refrigerant flux.

[0016] For better understanding and implementation, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is one of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0018] Figure 2 It is two of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0019] Figure 3 It is three of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0020] Figure 4 It is four of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0021] Figure 5 It is five of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0022] Figure 6 It is six of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0023] Figure 7 It is seven of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0024] Figure 8 It is eight of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0025] Figure 9 It is nine of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0026] Figure 10 It is ten of the structure schematic diagram of the anti-cracking sound cover of the utility model embodiment;

[0027] Figure 11The utility model discloses an anti-cracking sound cover structure.

[0028] Mark explanation:

[0029] 100, sound cover body, 110, gas cavity, 111, first communication channel, 112, second communication channel, 113, side hole, 114, half moon hole, 120, first exhaust cavity, 121, first exhaust hole, 122, third exhaust hole, 130, second exhaust cavity, 131, second exhaust hole, 132, fourth exhaust hole, 140, through hole. Specific implementation

[0030] To further illustrate each embodiment, the utility model provides an attached drawing. These attached drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiment, and can be explained with the operation principle of the embodiment in cooperation with the relevant description of the specification. With reference to these contents, those skilled in the art should understand other possible implementation modes and the advantages of the utility model.

[0031] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model.

[0032] In the related art, the working principle of the rotary compressor is to divide the cylinder into two spaces of suction and exhaust cavities by the slider, the stator coil generates electromagnetic field when the motor is powered, the rotor cuts the magnetic line to generate power to drive the crankshaft of the pump body to rotate and make the piston rotate in the cylinder to compress the refrigerant. The volume of the suction and exhaust cavities is continuously changed under the action of the crankshaft, the low-temperature and low-pressure gaseous refrigerant is sucked in and compressed into high-temperature and high-pressure gaseous refrigerant, and then discharged from the pump body, and the cycle is repeated. The displacement of the double-cylinder type compressor on the market is large under high-frequency working condition, so that the high-temperature and high-pressure gas discharged from the double-cylinder compression structure is discharged from the upper sound cover, so that the upper sound cover is repeatedly impacted by the high-temperature and high-pressure gas, which can cause more vortex in the internal of the upper sound cover, the pressure impact point is more concentrated, so that the upper sound cover is prone to local fracture and damage.

[0033] Therefore, the utility model embodiment provides an anti-cracking sound cover, a compressor pump body structure and a compressor. According to the anti-cracking sound cover, the compressor pump body structure and the compressor, the impact of the high-pressure gas on the anti-cracking sound cover can be effectively reduced under the condition of ensuring the sound reduction effect and the refrigerant flux, and the breakage and damage of the anti-cracking sound cover can be prevented.

[0034] Please refer to Figures 1 to 11 The utility model discloses a first aspect provides a kind of anti-cracking sound cover, including sound cover body 100, sound cover body 100 has gas receiving cavity 110, first exhaust cavity 120, second exhaust cavity 130, and the through hole 140 being set in the middle of sound cover body 100, suitable for being set on the hole of the crankshaft to be installed;Gas receiving cavity 110 is used to receive the gas discharged from pump body structure, first exhaust cavity 120 is provided with first exhaust hole 121, second exhaust cavity 130 is provided with second exhaust hole 131, first exhaust cavity 120 and second exhaust cavity 130 are located at the two sides of gas receiving cavity 110 respectively, first exhaust cavity 120 is communicated with gas receiving cavity 110 and forms first communication passage 111, second exhaust cavity 130 is communicated with gas receiving cavity 110 and forms second communication passage 112, the minimum width of first communication passage 111 is D, the minimum width of second communication passage 112 is d, d≤D, and 10mm≤d≤15mm.

[0035] Therefore, according to the anti-cracking sound cover of the utility model embodiment, by setting the gas receiving cavity 110 for receiving high-pressure gas and the first exhaust cavity 120 and the second exhaust cavity 130 communicated with the gas receiving cavity 110 on the sound cover body 100, the minimum width D of the second communication passage 112 is greater than or equal to the minimum width d of the second communication passage 112, and the minimum width d of the second communication passage 112 is designed to be 10mm≤d≤15mm; in this way, by designing the width of the first communication passage 111 and the second communication passage 112, the flow rate of high-pressure refrigerant can be improved, and the vortex phenomenon of the first communication passage 111 and the second communication passage 112 can be effectively improved, and the first exhaust hole 121 of the first exhaust cavity 120 and the second exhaust hole 131 of the second exhaust cavity 130 are used for sound exhaust respectively, the two exhaust holes are arranged away from the gas receiving cavity 110, that is, away from the exhaust valve seat of the bearing, so that the anti-cracking sound cover of the utility model embodiment can effectively disperse the impact force of high-pressure gas on the anti-cracking sound cover under the condition of ensuring the sound effect and the flow rate of high-pressure refrigerant, thereby effectively preventing the anti-cracking sound cover from being damaged, and ensuring the performance of the compressor.

[0036] In the utility model embodiment, in order to maintain the sound effect of the anti-cracking sound cover, the sum of the opening area of the first exhaust hole 121 and the opening area of the second exhaust hole 131 is S, S≤190mm 2 .

[0037] Optionally, in some embodiments of the utility model, the first exhaust cavity 120 is provided with a third exhaust hole 122, and the area of the third exhaust hole 122 is smaller than the area of the first exhaust hole 121. It can be understood that in these embodiments, the total opening area of the first exhaust hole 121, the second exhaust hole 131 and the third exhaust hole 122 is less than or equal to 190mm 2In addition, in these embodiments, the axis of the third exhaust hole 122 is parallel to the axis of the first exhaust hole 121 and the axis of the through hole 140, the third exhaust hole 122 is located between the first exhaust hole 121 and the through hole 140, and the center of the third exhaust hole 122 is located on the path of the connection between the center of the first exhaust hole 121 and the center of the through hole 140.

[0038] Optionally, in some embodiments of the utility model, the second exhaust cavity 130 is provided with a fourth exhaust hole 132, and the area of the fourth exhaust hole 132 is smaller than the area of the second exhaust hole 131. It can be understood that, in these embodiments, the total opening area of the first exhaust hole 121, the second exhaust hole 131 and the fourth exhaust hole 132 is less than or equal to 190mm 2 In addition, in these embodiments, the axis of the fourth exhaust hole 132 is parallel to the axis of the second exhaust hole 131 and the axis of the through hole 140, the fourth exhaust hole 132 is located between the second exhaust hole 131 and the through hole 140, and the center of the fourth exhaust hole 132 is located on the path of the connection between the center of the second exhaust hole 131 and the center of the through hole 140.

[0039] Optionally, in some embodiments of the utility model, the first exhaust cavity 120 is provided with a third exhaust hole 122, and the area of the third exhaust hole 122 is smaller than the area of the first exhaust hole 121; the second exhaust cavity 130 is provided with a fourth exhaust hole 132, and the area of the fourth exhaust hole 132 is smaller than the area of the second exhaust hole 131. It can be understood that, in these embodiments, the total opening area of the first exhaust hole 121, the second exhaust hole 131, the third exhaust hole 122 and the fourth exhaust hole 132 is less than or equal to 190mm 2 .

[0040] Optionally, in some embodiments of the utility model, the edge of the through hole 140 is radially outwardly recessed to form a semilunar hole 114, and the semilunar hole 114 is in communication with the first communication channel 111 or the second communication channel 112. In these embodiments, the radius of the semilunar hole 114 is less than or equal to 5mm; it can be understood that, by setting the semilunar hole 114, the exhaust pressure of the first communication channel 111 or the second communication channel 112 connected with the semilunar hole 114 can be effectively reduced, and a part of high-pressure gas is discharged from the semilunar hole 114, thereby effectively improving the vortex phenomenon of the first communication channel 111 or the second communication channel 112 connected with the semilunar hole 114.

[0041] Optionally, in some embodiments of the utility model, the lateral hole 113 is throughly set on the outer lateral wall of the air containing cavity 110. The exhaust direction of the lateral hole 113 is along the radial direction of the sound insulation cover body 100. It can be understood that in these embodiments, the lateral hole 113 is throughly set on the outer lateral wall of the air containing cavity 110, so that part of the gas in the air containing cavity 110 is directly exhausted from the lateral hole 113, effectively reducing the air pressure in the air containing cavity 110, so that the impact degree of the air containing cavity 110 is weakened. In addition, in these embodiments, the shape of the lateral hole 113 includes but is not limited to oval, strip and other shapes.

[0042] The utility model discloses a sound insulation cover with crack prevention function Figures 1 to 2 The utility model discloses a sound insulation cover with crack prevention function

[0043] The utility model provides a sound insulation cover with crack prevention function, including sound insulation cover body 100, sound insulation cover body 100 has air containing cavity 110, first exhaust cavity 120, second exhaust cavity 130 and the through -hole 140 set in the middle of sound insulation cover body 100, is suitable for the sleeve that sets on the crankshaft of waiting installation, air containing cavity 110 is used to receive the gas that exhausts from pump body structure, first exhaust cavity 120 is set with first exhaust hole 121, and second exhaust cavity 130 is set with second exhaust hole 131, and first exhaust cavity 120 and second exhaust cavity 130 are located at both sides of air containing cavity 110 respectively, first exhaust cavity 120 is communicated with air containing cavity 110 and forms first communication channel 111, and second exhaust cavity 130 is communicated with air containing cavity 110 and forms second communication channel 112, and the minimum width of first communication channel 111 is D, and the minimum width of second communication channel 112 is d, d=D, d=10mm.

[0044] In the embodiment, in order to keep the sound insulation effect of the sound insulation cover with crack prevention function, the sum of the opening area of the first exhaust hole 121 and the opening area of the second exhaust hole 131 is S, S=190mm 2 .

[0045] The utility model discloses a sound insulation cover with crack prevention function Figures 1 to 2 The utility model discloses a sound insulation cover with crack prevention function

[0046] The embodiment provides an anti-cracking sound cover, which comprises a sound cover body 100, the sound cover body 100 has a gas containing cavity 110, a first exhaust cavity 120, a second exhaust cavity 130, and a through hole 140 arranged in the middle of the sound cover body 100 and suitable for being sleeved on a crankshaft to be installed; the gas containing cavity 110 is used for receiving gas exhausted from a pump body structure, the first exhaust cavity 120 is provided with a first exhaust hole 121, the second exhaust cavity 130 is provided with a second exhaust hole 131, the first exhaust cavity 120 and the second exhaust cavity 130 are respectively located on the two sides of the gas containing cavity 110, the first exhaust cavity 120 is communicated with the gas containing cavity 110 and forms a first communication channel 111, the second exhaust cavity 130 is communicated with the gas containing cavity 110 and forms a second communication channel 112, the minimum width of the first communication channel 111 is D, the minimum width of the second communication channel 112 is d, d=12.5mm, and D=15mm.

[0047] In the embodiment, in order to maintain the sound reduction effect of the anti-cracking sound cover, the sum of the opening areas of the first exhaust hole 121 and the second exhaust hole 131 is S, S=180mm 2 .

[0048] The following will be described in detail Figures 1 to 2 It is worth understanding that the following is only a demonstrative description and cannot be understood as a limitation to the utility model.

[0049] The embodiment provides an anti-cracking sound cover, which comprises a sound cover body 100, the sound cover body 100 has a gas containing cavity 110, a first exhaust cavity 120, a second exhaust cavity 130, and a through hole 140 arranged in the middle of the sound cover body 100 and suitable for being sleeved on a crankshaft to be installed; the gas containing cavity 110 is used for receiving gas exhausted from a pump body structure, the first exhaust cavity 120 is provided with a first exhaust hole 121, the second exhaust cavity 130 is provided with a second exhaust hole 131, the first exhaust cavity 120 and the second exhaust cavity 130 are respectively located on the two sides of the gas containing cavity 110, the first exhaust cavity 120 is communicated with the gas containing cavity 110 and forms a first communication channel 111, the second exhaust cavity 130 is communicated with the gas containing cavity 110 and forms a second communication channel 112, the minimum width of the first communication channel 111 is D, the minimum width of the second communication channel 112 is d, d=15mm, and D=16mm.

[0050] In the embodiment, in order to maintain the sound reduction effect of the anti-cracking sound cover, the sum of the opening areas of the first exhaust hole 121 and the second exhaust hole 131 is S, S=190mm 2 .

[0051] The following will be described in detail Figures 1 to 4It is to be understood that the following is merely exemplary and is not to be construed as limiting the present application.

[0052] The anti-cracking sound insulation cover provided in the embodiment comprises a sound insulation cover body 100, the sound insulation cover body 100 has a gas containing cavity 110, a first gas exhaust cavity 120, a second gas exhaust cavity 130, and a through hole 140 arranged in the middle of the sound insulation cover body 100 and adapted to be sleeved on a crankshaft to be installed; the gas containing cavity 110 is used for receiving gas exhausted from a pump body structure, the first gas exhaust cavity 120 is provided with a first gas exhaust hole 121, the second gas exhaust cavity 130 is provided with a second gas exhaust hole 131, the first gas exhaust cavity 120 and the second gas exhaust cavity 130 are respectively arranged on two sides of the gas containing cavity 110, the first gas exhaust cavity 120 is in communication with the gas containing cavity 110 and forms a first communication channel 111, the second gas exhaust cavity 130 is in communication with the gas containing cavity 110 and forms a second communication channel 112, the minimum width of the first communication channel 111 is D, the minimum width of the second communication channel 112 is d, d = 12 mm, and D = 15 mm.

[0053] The first gas exhaust cavity 120 in the embodiment is provided with a third gas exhaust hole 122, the area of the third gas exhaust hole 122 is smaller than the area of the first gas exhaust hole 121; the second gas exhaust cavity 130 is provided with a fourth gas exhaust hole 132, the area of the fourth gas exhaust hole 132 is smaller than the area of the second gas exhaust hole 131. In order to maintain the sound insulation effect of the anti-cracking sound insulation cover, in the embodiment, the total opening area of the first gas exhaust hole 121, the second gas exhaust hole 131, the third gas exhaust hole 122 and the fourth gas exhaust hole 132 is S, S = 190 mm 2 .

[0054] The following will be described in detail Figures 5 to 8 It is to be understood that the following is merely exemplary and is not to be construed as limiting the present application.

[0055] The anti-cracking sound insulation cover provided in the embodiment comprises a sound insulation cover body 100, the sound insulation cover body 100 has a gas containing cavity 110, a first gas exhaust cavity 120, a second gas exhaust cavity 130, and a through hole 140 arranged in the middle of the sound insulation cover body 100 and adapted to be sleeved on a crankshaft to be installed; the gas containing cavity 110 is used for receiving gas exhausted from a pump body structure, the first gas exhaust cavity 120 is provided with a first gas exhaust hole 121, the second gas exhaust cavity 130 is provided with a second gas exhaust hole 131, the first gas exhaust cavity 120 and the second gas exhaust cavity 130 are respectively arranged on two sides of the gas containing cavity 110, the first gas exhaust cavity 120 is in communication with the gas containing cavity 110 and forms a first communication channel 111, the second gas exhaust cavity 130 is in communication with the gas containing cavity 110 and forms a second communication channel 112, the minimum width of the first communication channel 111 is D, the minimum width of the second communication channel 112 is d, d = 12 mm, and D = 15 mm.

[0056] In the embodiment, the edge of the through hole 140 is radially outwardly recessed to form a half moon hole 114, which is in communication with the first communication passage 111 or the second communication passage 112.

[0057] The following will be described in detail Figures 9 to 11 It should be understood that the following is only illustrative and cannot be understood as a limitation of the utility model.

[0058] The embodiment provides an anti-cracking sound insulation cover, which comprises a sound insulation cover body 100, the sound insulation cover body 100 has a gas containing cavity 110, a first gas exhaust cavity 120, a second gas exhaust cavity 130, and a through hole 140 arranged in the middle of the sound insulation cover body 100 and adapted to be sleeved on a crankshaft to be installed; the gas containing cavity 110 is used for receiving gas exhausted from a pump body structure, the first gas exhaust cavity 120 is provided with a first gas exhaust hole 121, the second gas exhaust cavity 130 is provided with a second gas exhaust hole 131, the first gas exhaust cavity 120 and the second gas exhaust cavity 130 are respectively located on the two sides of the gas containing cavity 110, the first gas exhaust cavity 120 is in communication with the gas containing cavity 110 and forms a first communication passage 111, the second gas exhaust cavity 130 is in communication with the gas containing cavity 110 and forms a second communication passage 112, the minimum width of the first communication passage 111 is D, the minimum width of the second communication passage 112 is d, d=10mm, and D=15mm.

[0059] In the embodiment, a side hole 113 is arranged through the outer side wall of the gas containing cavity 110. The exhaust direction of the side hole 113 is along the radial direction of the sound insulation cover body 100. The shape of the side hole 113 is a strip hole, the side hole 113 is transversely arranged on the outer side wall of the gas containing cavity 110, and the height of the side hole 113 is 4mm and the length is 12mm.

[0060] The embodiment of the utility model provides a compressor pump body structure which comprises the anti-cracking sound insulation cover of any one of the above embodiments. According to the compressor of the embodiment of the utility model, the anti-cracking sound insulation cover is improved in structure, so that the impact of high-pressure gas on the anti-cracking sound insulation cover can be effectively reduced, and the anti-cracking sound insulation cover can be prevented from being damaged by rupture.

[0061] The embodiment of the utility model provides a compressor which comprises the compressor pump body structure of any one of the above embodiments. According to the compressor of the embodiment of the utility model, the anti-cracking sound insulation cover is improved in structure, so that the impact of high-pressure gas on the anti-cracking sound insulation cover can be effectively reduced, and the anti-cracking sound insulation cover can be prevented from being damaged by rupture.

[0062] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model anti-cracking sound cover, compressor pump body structure and compressor. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, several modifications and improvements can be made, which belong to the protection scope of the utility model.

Claims

1.A crack-proof sound muffling cover, characterized in that: comprising a sound muffling cover body having a gas containing cavity, a first gas discharging cavity, a second gas discharging cavity, and a through hole provided in the middle of the sound muffling cover body and adapted to be sleeved on a crankshaft to be installed; the gas containing cavity is used for receiving gas discharged from a pump body structure, the first gas discharging cavity is provided with a first gas discharging hole, the second gas discharging cavity is provided with a second gas discharging hole, the first gas discharging cavity and the second gas discharging cavity are respectively located on two sides of the gas containing cavity, the first gas discharging cavity is communicated with the gas containing cavity and forms a first communication channel, the second gas discharging cavity is communicated with the gas containing cavity and forms a second communication channel, the minimum width of the first communication channel is D, the minimum width of the second communication channel is d, d≤D, and 10mm≤d≤15mm. 2.The crack-proof sound muffling cover according to claim 1, characterized in that: the first gas discharging cavity is provided with a third gas discharging hole, and the area of the third gas discharging hole is smaller than the area of the first gas discharging hole. 3.The crack-proof sound muffling cover according to claim 2, characterized in that: the axis of the third gas discharging hole is parallel to the axes of the first gas discharging hole and the through hole, the third gas discharging hole is located between the first gas discharging hole and the through hole, and the center of the third gas discharging hole is located on the path of the line connecting the center of the first gas discharging hole and the center of the through hole. 4.The crack-proof sound muffling cover according to claim 1, characterized in that: the second gas discharging cavity is provided with a fourth gas discharging hole, and the area of the fourth gas discharging hole is smaller than the area of the second gas discharging hole. 5.The crack-proof sound muffling cover according to claim 4, characterized in that: the axis of the fourth gas discharging hole is parallel to the axes of the second gas discharging hole and the through hole, the fourth gas discharging hole is located between the second gas discharging hole and the through hole, and the center of the fourth gas discharging hole is located on the path of the line connecting the center of the second gas discharging hole and the center of the through hole. 6.The crack-proof sound muffling cover according to claim 1, characterized in that: 7.The crack-proof sound muffling cover according to claim 1, characterized in that: a side hole is provided through the outer side wall of the gas containing cavity. 8.The crack-proof sound muffling cover according to claim 1, characterized in that: a half moon hole is formed by radially outwardly recessing the edge of the through hole, and the half moon hole is communicated with the first communication channel or the second communication channel. 9.A compressor pump body structure, characterized in that: comprising the crack-proof sound muffling cover according to any one of claims 1 to 8. 10.A compressor, characterized in that: comprising the compressor pump body structure according to claim 9. ​ The sum of the open area of the first vent and the open area of the second vent is S, S≤190mm 2 . ​ ​ ​ ​ ​ ​ ​ ​

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