Air cylinder assembly, pump body structure and compressor
By setting a bypass branch and a resonance chamber on the cylinder body, the problems of insufficient capacity and noise deterioration of rotary compressors at low temperatures are solved, resulting in a larger air supply volume and a lower exhaust temperature, thus improving the reliability of the compressor.
Patent Information
- Application Number
- CN202520569171.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-27
AI Technical Summary
When existing rotary compressors are used for heating at low temperatures, insufficient capacity and excessively high exhaust temperature are caused by an excessively small injection port area, while an excessively large injection port area leads to worsened vibration and noise, affecting the reliability of the compressor.
A bypass branch and a resonance chamber are set on the cylinder body. The main air supply channel is used as the main air supply source, and the bypass branch is used as the auxiliary air supply source. The resonance chamber is set on the cylinder body to reduce noise.
This technology enables increased gas supply at low temperatures, reduces exhaust temperature, improves noise levels, and enhances compressor performance.
Smart Images
Figure CN223806284U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a compressor technical field especially is related to a cylinder assembly, pump body structure and compressor. BACKGROUND
[0002] Rotary compressor, working principle is to use slider to divide into suction and exhaust chamber two space with cylinder, when motor is electrified, stator coil produces electromagnetic field, rotor cuts magnetic line of force and produces power and makes the crankshaft of pump body rotate and makes piston rotate in cylinder and compresses refrigerant. Under the action of crankshaft, the volume size of suction and exhaust chamber body changes constantly, inhales low temperature low pressure gaseous refrigerant, and after compressing into high temperature high pressure gaseous refrigerant, discharges pump body, and circulates like this.
[0003] Rotary compressor is used for low temperature heating, because the refrigerant in air conditioning system is at low evaporation temperature, suction density is small, leading to serious heat production attenuation of compressor at low temperature, and the method for solving the low temperature recession of compressor usually adopts injection enthalpy increasing technology, specifically, a part of intermediate pressure gas is inhaled through intermediate pressure suction hole, mixed with part of compressed refrigerant, and then compressed, so that the effect of two-stage compression with single compressor is realized, and the refrigerant flow in condenser is increased.
[0004] At present, the injection port area of injection enthalpy increasing compressor on the market is too small, which can cause insufficient capacity of compressor and too high exhaust temperature, and if the injection port area is too large, although the injection amount can be ensured to be sufficient, but the vibration and noise of compressor at low frequency can be greatly deteriorated, thereby affecting the reliability of compressor. UTILITY MODEL CONTENTS
[0005] Based on this, the purpose of the utility model is to overcome the defects of prior art, provide a cylinder assembly, pump body structure and compressor, by setting bypass branch and resonance chamber on the cylinder body, the injection amount of the cylinder assembly can be effectively increased, and the noise problem during injection can be improved.
[0006] In order to realize the above-mentioned purpose, the utility model embodiment first aspect provides a cylinder assembly, including cylinder body, injection valve, the cylinder body has compression chamber, the cylinder body is provided with injection channel, injection channel and injection channel are communicated, injection channel and compression chamber are communicated, injection valve is arranged on the cylinder body to control the conduction and isolation of injection channel and injection channel;
[0007] The cylinder body is provided with bypass branch and resonance chamber, the bypass branch is communicated with the injection channel and the compression chamber respectively, and the resonance chamber is communicated with the injection channel.
[0008] Therefore, the cylinder assembly according to the embodiment of the utility model, through set up bypass branch channel for connecting air supplement channel and compression cavity on cylinder body, through air supplement channel as the main air supplement source of compression cavity, and bypass branch channel as the auxiliary air supplement source of compression cavity, can realize providing greater air supplement to compression cavity, and then realize low temperature heating performance of compressor, and because of the increase of air supplement, can effectively reduce exhaust temperature, in addition, while realizing the increase of air supplement, through set up resonance chamber on cylinder body, realize the noise reduction when air supplement, thereby effectively improve the noise problem when air supplement, improve the performance of compressor.
[0009] As an implementation form, the air supplement channel is provided with an air supplement port communicated with the compression cavity, and an extension line of the air supplement port in a radial direction and an extension line of the bypass branch channel in a length direction form an acute angle in an axial projection.
[0010] As an implementation form, the bypass branch channel is located between the resonance chamber and the air supplement port.
[0011] As an implementation form, the air supplement channel is formed on an end face of the cylinder body, the bypass branch channel is formed on the end face of the cylinder body provided with the air supplement channel, one end of the bypass branch channel is communicated with an inner wall of the air supplement channel, and the other end of the bypass branch channel is communicated with the compression cavity.
[0012] As an implementation form, the bypass branch channel is a straight line type channel.
[0013] As an implementation form, the resonance chamber is recessed from the end face of the cylinder body provided with the air supplement channel, a communication channel is arranged between the resonance chamber and the air supplement channel, and the communication channel is communicated with the resonance chamber and the air supplement channel respectively.
[0014] As an implementation form, one end of the injection channel penetrates through an outer side wall of the cylinder body and forms an injection inlet, the other end of the injection channel penetrates through a bottom of the air supplement channel and forms an injection outlet, and the air supplement valve is arranged on the air supplement channel to open and close the injection outlet.
[0015] As an implementation form, the air supplement valve is configured to open the injection outlet when the pressure in the compression cavity is less than the pressure at the injection outlet, and close the injection outlet when the pressure in the compression cavity is greater than the pressure at the injection outlet.
[0016] The utility model embodiment second aspect provides a kind of pump body structure, it includes the cylinder subassembly described in any one of above. According to the pump body structure of the utility model embodiment, by being provided with bypass branch and resonance chamber on cylinder body, the air supplement of cylinder subassembly can be effectively increased, and the noise problem when air supplement is improved simultaneously.
[0017] The utility model embodiment third aspect provides a kind of compressor, it includes the pump body structure described in any one of above. According to the compressor of the utility model embodiment, by being provided with bypass branch and resonance chamber on cylinder body, the air supplement of cylinder subassembly can be effectively increased, and the noise problem when air supplement is improved simultaneously.
[0018] For better understanding and implementation, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is one of structure schematic view of the cylinder subassembly of the utility model embodiment;
[0020] Figure 2 It is the second structure schematic view of the cylinder subassembly of the utility model embodiment;
[0021] Figure 3 It is one of structure schematic view of the cylinder body of the utility model embodiment;
[0022] Figure 4 It is the second structure schematic view of the cylinder body of the utility model embodiment;
[0023] Figure 5 It is the third structure schematic view of the cylinder body of the utility model embodiment;
[0024] Figure 6 It is the fourth structure schematic view of the cylinder body of the utility model embodiment;
[0025] Figure 7 It is Figure 6 The enlarged schematic view of A portion shown in;
[0026] Figure 8 It is Figure 6 The cross-sectional schematic view of A-A direction shown in.
[0027] MARKING OF FIGURES:
[0028] 100, cylinder body;110, compression cavity;120, injection channel;121, injection inlet;122, injection outlet;130, air supplement channel;131, air supplement port;140, bypass branch;150, resonance chamber;151, communication channel;200, air supplement valve. DETAILED DESCRIPTION
[0029] For the purposes of the present application, the technical solutions and advantages will be further described in detail below in conjunction with the drawings. It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0030] The terms used in the present application are merely for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.
[0031] The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third" and the like are used only to distinguish similar objects, and do not necessarily describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0032] In the related art, the working principle of the rotary compressor is to divide the cylinder into two spaces of suction and exhaust chambers by the slider, the stator coil generates electromagnetic field when the motor is powered on, the rotor cuts the magnetic force 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. Under the action of the crankshaft, the volume of the suction and exhaust chambers is constantly changed, the low-temperature and low-pressure gaseous refrigerant is sucked in, and the high-temperature and high-pressure gaseous refrigerant is compressed and discharged from the pump body, and the cycle is repeated. The rotary compressor is used for low-temperature heating, and since the refrigerant in the air conditioning system is at low evaporation temperature, the suction density is small, resulting in serious heating capacity attenuation of the compressor at low temperature; and the method for solving the low-temperature recession of the compressor usually adopts the air supplement and enthalpy increase technology, specifically, a part of the intermediate pressure gas is sucked in through the intermediate pressure suction hole, mixed with the refrigerant after partial compression, and then compressed, so as to realize the effect of two-stage compression with a single compressor, and increase the refrigerant flow in the condenser.
[0033] At present, the jet port area of the jet augmenting compressor on the market is too small, which can cause insufficient capacity of the compressor and too high exhaust temperature; if the jet port area is too large, although it can ensure sufficient air supplement, it can also cause great deterioration of vibration and noise of the compressor at low frequency, thereby affecting the reliability of the compressor.
[0034] Therefore, the cylinder assembly, the pump body structure and the compressor according to the embodiments of the present application can effectively increase the air supplement of the cylinder assembly, and improve the noise problem during air supplement.
[0035] Please refer to Figures 1 to 8 The first aspect of the embodiments of the present application provides a cylinder assembly, which comprises a cylinder body 100 and an air supplement valve 200, the cylinder body 100 has a compression cavity 110, the cylinder body 100 is provided with a jet channel 120 and an air supplement channel 130, the jet channel 120 and the air supplement channel 130 are in communication, the air supplement channel 130 is in communication with the compression cavity 110, the air supplement valve 200 is arranged on the cylinder body 100 to control the conduction and isolation of the jet channel 120 and the air supplement channel 130; the cylinder body 100 is provided with a bypass branch 140 and a resonance cavity 150, the bypass branch 140 is in communication with the air supplement channel 130 and the compression cavity 110 respectively, and the resonance cavity 150 is in communication with the air supplement channel 130.
[0036] Therefore, the cylinder assembly according to the embodiments of the present application can realize greater air supplement of the compression cavity 110 by arranging the bypass branch 140 for connecting the air supplement channel 130 and the compression cavity 110 on the cylinder body 100, by taking the air supplement channel 130 as the main air supplement source of the compression cavity 110 and taking the bypass branch 140 as the auxiliary air supplement source of the compression cavity 110, thereby realizing low-temperature heating performance of the compressor, and effectively reducing the exhaust temperature due to the increase of the air supplement; in addition, while realizing the increase of the air supplement, the resonance cavity 150 is arranged on the cylinder body 100 to realize low noise during air supplement, thereby effectively improving the noise problem during air supplement and improving the performance of the compressor.
[0037] In the embodiment of the utility model, the air supplement channel 130 is provided with an air supplement port 131 communicated with the compression cavity 110, one end of the injection channel 120 penetrates the outer side wall of the cylinder body 100 and forms an injection inlet 121, the other end of the injection channel 120 penetrates the bottom of the air supplement channel 130 and forms an injection outlet 122, and the air supplement valve 200 is arranged on the air supplement channel 130 to open and close the injection outlet 122. Wherein, the air supplement valve 200 is configured to open the injection outlet 122 when the pressure in the compression cavity 110 is less than the pressure at the injection outlet 122, and close the injection outlet 122 when the pressure in the compression cavity 110 is greater than the pressure at the injection outlet 122. That is, when the pressure in the compression cavity 110 is less than the pressure at the injection outlet 122, the air supplement valve 200 opens the injection outlet 122, so that the injection gas is injected from the injection outlet 122 and enters the compression cavity 110 along the air supplement channel 130 and the bypass branch 140 respectively to supplement air; when the pressure in the compression cavity 110 is greater than the pressure at the injection outlet 122, the air supplement valve 200 closes the injection outlet 122. Wherein, the injection inlet 121 can be connected with the injection gas reservoir.
[0038] Optionally, in some embodiments of the utility model, the bypass branch 140 is a straight channel, and the extension line of the air supplement port 131 in the radial direction and the extension line of the bypass branch 140 in the length direction form an acute angle in the axial projection. It can be understood that in these embodiments, the bypass branch 140 is equivalent to cutting a straight channel on the inner wall of the air supplement channel 130 to communicate with the compression cavity 110, so that the air supplement channel 130 has another branch for auxiliary air supplement, and the air supplement amount of the cylinder body 100 is effectively increased. In addition, the bypass branch 140 adopts a straight structure, so that the flow rate of the gas is faster than that of the curved or bent structure, and the bypass branch 140 can also be designed as a curved or bent structure according to actual needs, which will not be described here.
[0039] Wherein, the bypass branch 140 of the utility model can be located between the resonance cavity 150 and the air supplement channel 130, and the bypass branch 140 of the utility model and the resonance cavity 150 can also be distributed on both sides of the air supplement channel 130, or the resonance cavity 150 is located between the air supplement channel 130 and the bypass branch 140.
[0040] Optionally, in some embodiments of the utility model, the air supplement channel 130 is formed on the end face of the cylinder body 100, the bypass branch 140 is formed on the end face of the cylinder body 100 provided with the air supplement channel 130, and one end of the bypass branch 140 is communicated with the inner wall of the air supplement channel 130, and the other end of the bypass branch 140 is communicated with the compression cavity 110. In addition, the resonance chamber 150 is recessed from the end face of the cylinder body 100 provided with the air supplement channel 130, and a communication channel 151 is arranged between the resonance chamber 150 and the air supplement channel 130, and the communication channel 151 is communicated with the resonance chamber 150 and the air supplement channel 130 respectively. That is, in these embodiments, the air supplement channel 130, the bypass branch 140, the resonance chamber 150 and the communication channel 151 are all recessed from the same end face of the cylinder body 100, so as to simplify the machining difficulty of each channel and facilitate the installation of the air supplement valve 200 in the air supplement channel 130.
[0041] The utility model discloses a cylinder assembly, and particularly provides a cylinder assembly with air supplement function. Figures 1 to 8 The detailed description is described according to one specific embodiment of the cylinder assembly of the utility model, and it is worth understanding that the following is only exemplary description and can not be understood as the limitation of the utility model.
[0042] The embodiment provides a cylinder assembly, which comprises a cylinder body 100 and an air supplement valve 200, the cylinder body 100 is provided with a compression cavity 110, the cylinder body 100 is provided with a jet channel 120 and an air supplement channel 130, the jet channel 120 is communicated with the air supplement channel 130, the air supplement channel 130 is communicated with the compression cavity 110, the air supplement valve 200 is arranged on the cylinder body 100 to control the conduction and interruption of the jet channel 120 and the air supplement channel 130; the cylinder body 100 is provided with a bypass branch 140 and a resonance chamber 150, the bypass branch 140 is communicated with the air supplement channel 130 and the compression cavity 110 respectively, and the resonance chamber 150 is communicated with the air supplement channel 130.
[0043] Specifically, in the embodiment, the air supplement passage 130 is formed on the end face of the cylinder body 100, the bypass branch 140 is formed on the end face of the cylinder body 100 provided with the air supplement passage 130, and one end of the bypass branch 140 is in communication with the inner wall of the air supplement passage 130, and the other end of the bypass branch 140 is in communication with the compression cavity 110. Secondly, the resonance cavity 150 is recessed from the end face of the cylinder body 100 provided with the air supplement passage 130, and a communication passage 151 is arranged between the resonance cavity 150 and the air supplement passage 130, and the communication passage 151 is in communication with the resonance cavity 150 and the air supplement passage 130, respectively. In addition, the air supplement passage 130 is provided with an air supplement port 131 in communication with the compression cavity 110, one end of the injection passage 120 penetrates the outer side wall of the cylinder body 100 and forms an injection inlet 121, the other end of the injection passage 120 penetrates the bottom of the air supplement passage 130 and forms an injection outlet 122, and the air supplement valve 200 is arranged on the air supplement passage 130 to open and close the injection outlet 122. Wherein, the air supplement valve 200 is configured to open the injection outlet 122 when the pressure in the compression cavity 110 is less than the pressure at the injection outlet 122, and close the injection outlet 122 when the pressure in the compression cavity 110 is greater than the pressure at the injection outlet 122.
[0044] The bypass branch 140 of the embodiment is located between the resonance cavity 150 and the air supplement passage 130, the bypass branch 140 adopts a linear structure, and the extension line of the air supplement port 131 in the radial direction and the extension line of the bypass branch 140 in the length direction form an acute angle in the axial projection.
[0045] Therefore, according to the cylinder assembly of the embodiment, by arranging the bypass branch 140 for communicating the air supplement passage 130 and the compression cavity 110 on the cylinder body 100, the air supplement passage 130 serves as the main air supplement source of the compression cavity 110, and the bypass branch 140 serves as the auxiliary air supplement source of the compression cavity 110, so that a greater air supplement amount can be provided to the compression cavity 110, thereby realizing the low-temperature heating performance of the compressor, and due to the increase of the air supplement amount, the exhaust temperature can be effectively reduced; in addition, while realizing the increase of the air supplement amount, by arranging the resonance cavity 150 on the cylinder body 100, the noise during air supplement is reduced, thereby effectively improving the noise problem during air supplement and improving the performance of the compressor.
[0046] The second aspect of the embodiment of the utility model provides a pump body structure, it includes the cylinder assembly of any one of above. According to the pump body structure of the embodiment of the utility model, by arranging the bypass branch 140 and the resonance cavity 150 on the cylinder body 100, the air supplement amount of the cylinder assembly can be effectively increased, and the noise problem during air supplement can be improved.
[0047] The compressor provided in the third aspect of the embodiments of the present application comprises the pump body structure of any one of the above. According to the compressor of the embodiments of the present application, the bypass branch 140 and the resonance chamber 150 are arranged on the cylinder body 100, so that the air supplementing amount of the cylinder assembly can be effectively increased, and the noise problem during air supplementing can be improved.
[0048] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it cannot be understood as the limitation on the scope of the cylinder assembly, the pump body structure and the compressor of the present application. It should be pointed out that, for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. A cylinder assembly, characterized in that: comprising a cylinder body, a cylinder body having a compression chamber, a cylinder body provided with a jet channel and a charge channel, the jet channel and the charge channel being in communication, the charge channel being in communication with the compression chamber, and a charge valve provided on the cylinder body to control the conduction and isolation of the jet channel and the charge channel; the cylinder body is provided with a bypass branch and a resonance chamber, the bypass branch is in communication with the charge channel and the compression chamber respectively, and the resonance chamber is in communication with the charge channel.
2. The cylinder assembly according to claim 1, characterized in that: the charge channel is provided with a charge port in communication with the compression chamber, and the extension of the charge port in the radial direction and the extension of the bypass branch in the length direction form an acute angle in the axial projection.
3. The cylinder assembly according to claim 2, characterized in that: the bypass branch is located between the resonance chamber and the charge port.
4. The cylinder assembly according to claim 1, characterized in that: the charge channel is formed on the end face of the cylinder body, the bypass branch is formed on the end face of the cylinder body provided with the charge channel, and one end of the bypass branch is in communication with the inner wall of the charge channel, and the other end of the bypass branch is in communication with the compression chamber.
5. The cylinder assembly according to claim 4, characterized in that: the bypass branch is a straight channel.
6. The cylinder assembly according to claim 4, characterized in that: the resonance chamber is recessed from the end face of the cylinder body provided with the charge channel, a communication channel is provided between the resonance chamber and the charge channel, and the communication channel is in communication with the resonance chamber and the charge channel respectively.
7. The cylinder assembly according to claim 1, characterized in that: one end of the jet channel penetrates through the outer side wall of the cylinder body and forms a jet inlet, the other end of the jet channel penetrates through the bottom of the charge channel and forms a jet outlet, and the charge valve is provided on the charge channel to open and close the jet outlet.
8. The cylinder assembly according to claim 7, characterized in that: the charge valve is configured to open the jet outlet when the pressure in the compression chamber is less than the pressure at the jet outlet, and to close the jet outlet when the pressure in the compression chamber is greater than the pressure at the jet outlet.
9. A pump structure, characterized in that: comprising the cylinder assembly according to any one of claims 1 to 8.
10. A compressor, characterized in that: comprising the pump structure according to claim 9.