Air cylinder for pump body structure, compression pump body structure and compressor

Abstract

The utility model relates to an air cylinder for a pump body structure, a compression pump body structure and a compressor, the air cylinder for the pump body structure comprises an air cylinder main body and a filtering piece, a compression cavity is arranged in the middle of the air cylinder main body in a penetrating mode, and an air suction channel communicated with the compression cavity is arranged on the outer side of the air cylinder main body in the radial direction in a penetrating mode. One end face of the air cylinder body penetrates through the air suction channel and is provided with an inserting groove, the filtering piece is inserted from the open end of the inserting groove, penetrates through the whole air suction channel and then abuts against the end, away from the opening, of the inserting groove, and interference fit is formed between the filtering piece and the inserting groove. A plurality of filtering holes are formed in the part, located in the air suction channel, of the filtering piece in the length direction of the air suction channel. According to the air cylinder for the pump body structure, the inserting groove is formed in the air cylinder body, and the filtering piece is arranged in the inserting groove in an interference fit mode, so that the filtering piece can play a role in blocking impurities and foreign matter, and meanwhile air suction pulsation noise of the air cylinder body is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field especially is related to a cylinder for pump body structure, compression pump body structure and compressor. BACKGROUND

[0002] The refrigeration system mainly utilizes the principle of condensation heat dissipation and evaporation heat absorption, circulates the refrigerant with active physical properties between the evaporator and the condenser to realize the function of heat exchange. The compressor is the core component of the refrigeration system, mainly providing power for the refrigeration system. In order to avoid the suction of impurities in the process of the operation of the compressor, a liquid accumulator with impurity filter screen is generally installed on the suction side of the compressor, thereby playing the role of buffering liquid refrigerant and preventing impurities from entering the interior of the compressor.

[0003] With the increasing range of application fields of heat pumps, due to the high suction temperature of the heat pump, the risk of liquid compression caused by the entry of low-temperature liquid refrigerant into the compressor has been eliminated; on the other hand, due to the large space occupied by the liquid accumulator, it is not conducive to the design requirements of miniaturization and portability of the compressor, so that the liquid accumulator is no longer applied to the compressor in the field of heat pumps. However, after the compressor cancels the installation of the liquid accumulator, how to filter the impurities in the suction channel of the pump body structure becomes a new problem. SUMMARY

[0004] Therefore, the utility model discloses the purpose of overcoming the deficiency of prior art, providing a kind of cylinder for pump body structure, compression pump body structure and compressor. According to the cylinder for pump body structure, compression pump body structure and compressor of the utility model embodiment, the filter piece is inserted into the insertion slot and passes through the entire suction channel after the insertion slot is formed in one end of the suction channel of the cylinder main body, and the filter piece is abutted in the end of the insertion slot away from its opening, and the filter piece and the insertion slot are formed with interference fit;The part of the filter piece in the suction channel is opened with a plurality of filter holes along the length direction of the suction channel.

[0005] In order to achieve the above-mentioned purpose, the utility model embodiment provides a kind of cylinder for pump body structure, including cylinder main body, filter piece, the middle part of the cylinder main body is provided with compression cavity, the outer side of the cylinder main body is provided with suction channel along the radial direction, the suction channel is communicated with the compression cavity, one end surface of the cylinder main body is provided with insertion slot in the suction channel, the filter piece is inserted into the opening end of the insertion slot and is abutted in the end of the insertion slot away from its opening after passing through the entire suction channel, and the filter piece and the insertion slot are formed with interference fit;The part of the filter piece in the suction channel is opened with a plurality of filter holes along the length direction of the suction channel.

[0006] Thus, according to the air cylinder for the pump body structure of the utility model embodiment, the plug-in slot is provided on the cylinder main body and penetrates the air suction channel, so that the filter element is matched and embedded, and the plug-in slot penetrates the air suction channel, so that one end of the filter element inserted can pass through the whole air suction channel and abut against the end of the plug-in slot away from the opening, so that the filter element can be simply and quickly fixed in the plug-in slot, and the interference fit between the plug-in slot and the filter element can effectively ensure the sealing of the air suction channel. In this way, the plurality of filter holes provided in the part of the filter element in the air suction channel can block impurities and foreign matters, and effectively reduce the air suction pulsation noise of the cylinder main body.

[0007] As an embodiment, the filter element at least partially extends out of the end face of the cylinder main body.

[0008] As an embodiment, the plug-in slot is recessed from the axial direction of one end face of the cylinder main body and penetrates the whole air suction channel, and the shape of the plug-in slot is matched with the shape of the filter element.

[0009] As an embodiment, the filter element is a sheet structure, the plug-in slot is a square slot structure, and the shape of the filter element is matched with the shape of the plug-in slot.

[0010] As an embodiment, a plurality of plug-in slots are provided on the cylinder main body, the plurality of plug-in slots are arranged at intervals, and the filter element is arranged in each plug-in slot.

[0011] As an embodiment, the plurality of filter holes are uniformly arranged in the part of the filter element in the air suction channel, and the distribution area formed by the plurality of filter holes is larger than the cross-sectional area of the air suction channel.

[0012] As an embodiment, the end of the air suction channel on the outside of the cylinder main body is an air suction port, and the part of the air suction channel between the air suction port and the filter element is used for inserting a connecting pipe.

[0013] The utility model embodiment provides a compression pump body structure which comprises the air cylinder for the pump body structure described in any one of the above embodiments, further comprises a cover sealing assembly and a crankshaft, the cover sealing assembly is connected with the cylinder main body, and the cover sealing assembly is used for sealing the compression cavity, and the crankshaft is rotatably arranged on the cylinder main body and the cover sealing assembly. According to the compression pump body structure of the utility model embodiment, the plug-in slot is provided on the cylinder main body, and the filter element is interference fitted in the plug-in slot, so that the filter element can block impurities and foreign matters, and effectively reduce the air suction pulsation noise of the cylinder main body.

[0014] The utility model discloses an embodiment third aspect provides a kind of compression pump body structure, it includes the cylinder for the pump body structure described in any one embodiment above, still include upper sound-absorbing cover, upper bearing, middle partition, lower cylinder, lower bearing, lower sound-absorbing cover, crankshaft;The upper bearing with the middle partition is respectively covered and arranged in the two end faces of the cylinder main body, the lower cylinder is arranged on the end face of the middle partition away from the cylinder main body, the lower bearing is arranged on the end face of the lower cylinder away from the middle partition, the upper sound-absorbing cover is arranged in the upper bearing and with the upper bearing surrounds upper sound-absorbing cavity, the lower sound-absorbing cover is arranged in the lower bearing and with the lower bearing surrounds lower sound-absorbing cavity;The middle part of the lower cylinder is provided with working cavity, and the intake passage and the working cavity are communicated in the intake passage between the lower cylinder and the middle partition;The crankshaft is rotatably arranged in upper sound-absorbing cover, upper bearing, cylinder main body, middle partition, lower cylinder, lower bearing, lower sound-absorbing cover.According to the compression pump body structure of the utility model embodiment, the filter piece is interference fitted in the insertion slot formed in the cylinder main body, so that the filter piece can block impurities and foreign matters, and effectively reduce the suction pulse noise of the cylinder main body.

[0015] The utility model discloses an embodiment fourth aspect provides a kind of compressor, it includes the compression pump body structure described in any one embodiment above.According to the compressor of the utility model embodiment, the filter piece is interference fitted in the insertion slot formed in the cylinder main body, so that the filter piece can block impurities and foreign matters, and effectively reduce the suction pulse noise of the cylinder main body.

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

[0017] Figure 1 It is the structure schematic view of the cylinder for the pump body structure of the utility model embodiment;

[0018] Figure 2 It is the exploded schematic view of the cylinder for the pump body structure of the utility model embodiment;

[0019] Figure 3 It is the cross-sectional schematic view of the cylinder for the pump body structure of the utility model embodiment;

[0020] Figure 4 It is the structure schematic view of the cylinder main body of the utility model embodiment;

[0021] Figure 5 It is the structure schematic view of the filter piece of the utility model embodiment;

[0022] Figure 6 It is the structure schematic view of the compression pump body structure of the utility model embodiment;

[0023] Figure 7 It is a cross section schematic view of the compression pump body structure of the utility model embodiment.

[0024] Mark explanation: 10, cylinder main body;11, compression chamber;12, suction passage;13, plug-in slot;20, filter piece;21, filter hole;30, upper sound insulation cover;40, upper bearing;50, middle partition;60, lower cylinder;70, lower bearing;80, lower sound insulation cover;90, crankshaft. DETAILED DESCRIPTION

[0025] To further illustrate the embodiments, the utility model provides with drawings. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can explain the operation principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model.

[0026] In the related art, since the suction temperature of the heat pump is high, the risk of liquid compression caused by the low-temperature liquid refrigerant entering the compressor has been eliminated;On the other hand, since the liquid accumulator occupies a large space, it is not conducive to the design requirements of compressor miniaturization, portability, etc., so that the liquid accumulator is no longer applied to the compressor in the field of heat pump. However, after the compressor cancels the installation of the liquid accumulator, how to filter the impurities in the suction passage of the pump body structure becomes a new problem.

[0027] In view of this, the utility model embodiment provides a cylinder for pump body structure, compression pump body structure and compressor, according to the cylinder for pump body structure, compression pump body structure and compressor of the utility model embodiment, the plug-in slot is set up on the cylinder main body, and the filter piece is interference fitted in the plug-in slot, so that the filter piece can play the function of blocking impurities, and the suction pulse noise of the cylinder main body is effectively reduced.

[0028] Please refer to Figures 1 to 5The utility model discloses a first aspect provides a kind of cylinder for pump body structure, including cylinder main body 10, filter piece 20, the middle part of the cylinder main body 10 is provided with compression cavity 11, the outer side of the cylinder main body 10 is provided with suction passage 12 along radial direction direction, the suction passage 12 is opened in one end surface of the cylinder main body 10 and is provided with insertion slot 13, the filter piece 20 is inserted from the opening one end of the insertion slot 13 and after passing through entire suction passage 12, it is abutted in the end of the insertion slot 13 away from its opening, and interference fit is formed between the filter piece 20 and the insertion slot 13;The part of the filter piece 20 in the suction passage 12 is provided with multiple filter holes 21 along the length direction of the suction passage 12. Among them, the suction passage 12 is located at one end of the outer side of the cylinder main body 10 as suction port, and the part of the suction passage 12 between the suction port and the filter piece 20 is used for inserting connecting pipe.

[0029] Therefore, according to the cylinder for pump body structure of the utility model embodiment, the insertion slot 13 through the suction passage 12 is arranged on the cylinder main body 10 to adapt the cooperation of the filter piece 20, and the end of the filter piece 20 inserted can pass through the suction passage 12 and abut against the end of the insertion slot 13 away from the opening thereof by the characteristic that the insertion slot 13 passes through the suction passage 12, so that the filter piece 20 can be simply and quickly fixed in the insertion slot 13, and the interference fit between the insertion slot 13 and the filter piece 20 can effectively ensure the sealing of the suction passage 12. In this way, the multiple filter holes 21 arranged in the part of the filter piece 20 in the suction passage 12 can block impurities and effectively reduce the suction pulse noise of the cylinder main body 10.

[0030] Optionally, in some embodiments of the utility model, at least part of the filter piece 20 extends out of the end surface of the cylinder main body 10. It can be understood that in these embodiments, one end of the filter piece 20 extends out of the end surface of the cylinder main body, which can facilitate the disassembly, washing or replacement of the filter piece 20 to prevent the difficulty in disassembly, washing or replacement of the filter piece 20. In addition, the multiple filter holes 21 are evenly arranged in the part of the filter piece 20 in the suction passage 12, and the distribution area formed by the multiple filter holes 21 is larger than the cross-sectional area of the suction passage 12. In this way, the smoothness of the filter holes 21 on the filter piece 20 can be effectively ensured.

[0031] Optionally, in some embodiments of the utility model, the plug groove 13 is recessed from one end surface of the cylinder main body in the axial direction and penetrates through the entire suction passage 12, and the shape of the plug groove 13 is matched with the shape of the filter piece 20. It can be understood that in these embodiments, the plug groove 13 is perpendicular to the suction passage 12, so that the filter piece 20 is also in a perpendicular relationship with the suction passage 12. When the filter piece 20 penetrates through the entire suction passage 12 and abuts against one end of the plug groove 13 away from the opening thereof, the filter piece 20 is uniformly dispersed by the impact force of the gas in the suction passage 12.

[0032] In addition, in these embodiments, the filter piece 20 is a sheet structure, the plug groove 13 is a square groove structure, and the shape of the filter piece 20 is matched with the shape of the plug groove 13.

[0033] Optionally, in some embodiments of the utility model, the cylinder main body 10 is provided with a plurality of plug grooves 13, the plurality of plug grooves 13 are arranged at intervals, and the filter piece 20 is arranged in each plug groove 13. It can be understood that in these embodiments, the number of plug grooves 13 can be two or more, and the number of plug grooves 13 and filter pieces 20 can be set according to actual needs.

[0034] The utility model discloses an embodiment second aspect provides a kind of compression pump body structure, it includes the cylinder for the pump body structure described in any one embodiment above, still include cover sealing assembly, crankshaft, the cover sealing assembly is connected with the cylinder main body 10, and the cover sealing assembly is used to cover the compression cavity 11, the crankshaft is rotatably arranged in the cylinder main body 10 and the cover sealing assembly. According to the compression pump body structure of the utility model embodiment, by being provided with plug groove 13 on cylinder main body 10, and filter piece 20 is interference fitted in plug groove 13, so that filter piece 20 can play the function of blocking impurity foreign matter, while effectively reducing the suction pulsation noise of cylinder main body 10. In these embodiments, the compression pump body structure can be understood as single cylinder structure.

[0035] As Figure 6 and Figure 7The utility model embodiment third aspect provides a kind of compression pump body structure, it includes the cylinder for the pump body structure described in any one of the above embodiment, still include upper silencer cover 30, upper bearing 40, middle partition plate 50, lower cylinder 60, lower bearing 70, lower silencer cover 80, crankshaft 90;The upper bearing 40 with the middle partition plate 50 is respectively covered in the two end faces of the cylinder main body 10, the lower cylinder is set on the end face of the middle partition plate 50 away from the cylinder main body 10, the lower bearing 70 is set on the end face of the lower cylinder away from the middle partition plate 50, the upper silencer cover 30 is set in the upper bearing 40 and with the upper bearing 40 enclose upper silencer cavity, the lower silencer cover 80 is set in the lower bearing 70 and with the lower bearing 70 enclose lower silencer cavity;The middle part of the lower cylinder 60 is provided with working chamber, the lower cylinder 60 with the middle partition plate 50 between being provided with the air inlet channel that the suction passage 12 with the working chamber are communicated;The crankshaft 90 is rotatably threaded in upper silencer cover 30, upper bearing 40, cylinder main body 10, middle partition plate 50, lower cylinder 60, lower bearing 70, lower silencer cover 80.According to the compression pump body structure of the utility model embodiment, the filter piece 20 is provided with interference fit in the insertion slot 13 by being provided with insertion slot 13 on the cylinder main body 10, so that filter piece 20 can play the function of blocking impurity foreign matter, while effectively reducing the suction pulsation noise of cylinder main body 10. Among these embodiments, the compression pump body structure can be understood as a double-cylinder structure.

[0036] The utility model embodiment fourth aspect provides a kind of compressor, it includes the compression pump body structure described in any one of the above embodiment.According to the compressor of the utility model embodiment, the filter piece 20 is provided with interference fit in the insertion slot 13 by being provided with insertion slot 13 on the cylinder main body 10, so that filter piece 20 can play the function of blocking impurity foreign matter, while effectively reducing the suction pulsation noise of cylinder main body 10.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" are based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as limiting the utility model.

[0037] The above-described 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 on the range of the utility model for the cylinder of the pump body structure, the compression pump body structure and the compressor. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, several modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A cylinder for a pump body structure, comprising: a cylinder body, a filter, a compression cavity being formed through a middle portion of the cylinder body, an air suction passage being formed through an outer side of the cylinder body in a radial direction and communicating with the compression cavity, an insertion slot being formed through an end face of the cylinder body in the air suction passage, the filter being inserted into the insertion slot from an opening end of the insertion slot, and abutting against an end of the insertion slot away from the opening end of the insertion slot after passing through the air suction passage, and the filter and the insertion slot being in interference fit, and a plurality of filter holes being formed through a portion of the filter in the air suction passage in a length direction of the air suction passage. 2.The cylinder for a pump body structure according to claim 1, wherein: at least a portion of the filter extends out of the end face of the cylinder body. 3.The cylinder for a pump body structure according to claim 1, wherein: the insertion slot is recessed in an axial direction from the end face of the cylinder body and passes through the air suction passage, and a shape of the insertion slot is adapted to a shape of the filter. 4.The cylinder for a pump body structure according to claim 3, wherein: the filter is a sheet structure, the insertion slot is a square slot structure, and the shape of the filter is adapted to the shape of the insertion slot. 5.The cylinder for a pump body structure according to claim 1, wherein: a plurality of the insertion slots are provided on the cylinder body, the plurality of the insertion slots are spaced apart from each other, and the filter is provided in each of the insertion slots. 6.The cylinder for a pump body structure according to claim 1, wherein: the plurality of the filter holes are uniformly provided in the portion of the filter in the air suction passage, and a distribution area of the plurality of the filter holes is greater than a cross-sectional area of the air suction passage. 7.The cylinder for a pump body structure according to claim 1, wherein: one end of the air suction passage on the outer side of the cylinder body is an air suction port, and a portion of the air suction passage between the air suction port and the filter is for inserting a connecting pipe. 8.A compression pump body structure, comprising: the cylinder for a pump body structure according to any one of claims 1 to 7, a cover assembly connected to the cylinder body and covering the compression cavity, and a crankshaft rotatably penetrating the cylinder body and the cover assembly. 9.A compression pump body structure, ​ ​ ​ ​ ​ ​ ​ ​ The cylinder, as described in any one of claims 1 to 7, for use in a pump body structure, further includes an upper muffler cover, an upper bearing, a middle partition, a lower cylinder, a lower bearing, a lower muffler cover, and a crankshaft; the upper bearing and the middle partition are respectively disposed on two end faces of the cylinder body; the lower cylinder is disposed on the end face of the middle partition away from the cylinder body; the lower bearing is disposed on the end face of the lower cylinder away from the middle partition; the upper muffler cover is disposed on the upper bearing and forms an upper muffler cavity with the upper bearing; the lower muffler cover is disposed on the lower bearing and forms a lower muffler cavity with the lower bearing; a working chamber is provided through the middle of the lower cylinder; an air intake channel is provided between the lower cylinder and the middle partition, connecting the air intake channel and the working chamber; the crankshaft is rotatably mounted on the upper muffler cover, the upper bearing, the cylinder body, the middle partition, the lower cylinder, the lower bearing, and the lower muffler cover.

10. A compressor, characterized in that: Includes the compression pump body structure as described in claim 8 or 9.

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