CN207278456U - Miniature reciprocating compressor, refrigeration system and refrigerator - Google Patents
Miniature reciprocating compressor, refrigeration system and refrigerator Download PDFInfo
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- CN207278456U CN207278456U CN201721193551.XU CN201721193551U CN207278456U CN 207278456 U CN207278456 U CN 207278456U CN 201721193551 U CN201721193551 U CN 201721193551U CN 207278456 U CN207278456 U CN 207278456U
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- cylinder
- tonifying
- reciprocating compressor
- compressor
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Abstract
The utility model discloses a kind of Miniature reciprocating compressor, refrigeration system and refrigerator.The reciprocating compressor is Single-cylinder Reciprocating Compressor, including bent axle, cylinder and the piston being arranged in the cylinder, the piston is connected with the bent axle, drive the piston to be moved back and forth in the cylinder by the rotation of the bent axle, the air supply passage for tonifying Qi is provided with the cylinder.Single-cylinder Reciprocating Compressor provided by the utility model sets the air supply passage for tonifying Qi on cylinder, the single cylinder Two-stage Compression of compressor is realized by way of carrying out Gas-supplying enthalpy-increasing to compressor, improve the refrigerating capacity of compressor unit volume, so, improve the reciprocating refrigerating capacity scope in the case where not changing rotating speed of single cylinder of same discharge capacity, compressor is allowd to match the refrigerator of bigger volume, the energy efficiency coefficient COP of compressor can be effectively improved at the same time, so as to reduce the power consumption of refrigerator.
Description
Technical field
Compressor Technology field is the utility model is related to, particularly a kind of Miniature reciprocating compressor, refrigeration system and ice
Case.
Background technology
Traditional Miniature reciprocating compressor such as refrigerator reciprocating compressor is by varying driving direct current variable frequency motor
Rotating speed, achieve the purpose that to change compressor refrigerating capacity scope, but the change of cold is limited in scope, with 9.0cc frequency conversion refrigerators
Exemplified by compressor, current running speed scope is mostly 1200~4200 revs/min, under national standard operating mode, the scope of refrigerating capacity
For 66~210W, belong to single cylinder single stage compress mode, apply in general to the refrigerator of 300~460L.When rotating speed is higher than 4200 revs/min
Zhong Shi, compressor is since there are multiple friction pairs, mechanical loss can increase very much, while compressor electric motor caloric value increases, meeting
Cause suction superheat, decline the indicated efficiency of compressor, ultimately resulting in the efficiency of complete machine at high speed reduces.Meanwhile by
Electric constantly all the year in refrigerator, compressor operating time length, long-term high rotating speed operation can also influence the reliability of compressor.If will
The refrigerator of more than 460L is matched, on the premise of the efficiency under ensureing compressor demand rotating speed, can only be arranged by increasing compressor
The mode of amount, causes the increase of compressor volume, influences the structural compactness of refrigerator.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of increases refrigerating capacity in the case where not changing discharge capacity
Miniature reciprocating compressor, refrigeration system and the refrigerator of scope.
In order to achieve the above object, on the one hand, the utility model adopts the following technical solution：
A kind of Miniature reciprocating compressor, the reciprocating compressor are Single-cylinder Reciprocating Compressor, including bent axle, cylinder
With the piston being arranged in the cylinder, the piston is connected with the bent axle, and the work is driven by the rotation of the bent axle
Plug moves back and forth in the cylinder, and the air supply passage for tonifying Qi is provided with the cylinder.
Preferably, the cylinder includes cylinder body, and through hole is provided with the cylinder wall of the cylinder body, and the through hole forms institute
State air supply passage.
Preferably, the cylinder inner cavity position farthest apart from the bent axle and the air supply passage are in the cylinder inner cavity
Cavity wall on the distance between the center line of opening be H, the movement travel of the piston is L, distance H and movement travel L
The scope of ratio i is 0.2≤i≤0.5.
Preferably, the radial direction full-size of opening of the passage in the cavity wall of the cylinder inner cavity is more than or equal to
1.5mm, less than or equal to 4mm.
Preferably, the air supply passage connection tonifying Qi pipeline, the reciprocating compressor, which further includes, to be used for air supply passage
With the tonifying Qi pipeline connection and the construction of switch of cut-out.
Preferably, the construction of switch includes cavity body structure, and tonifying Qi chamber, the tonifying Qi intracavitary are formed in the cavity body structure
Valve block is provided with, the tonifying Qi chamber is divided into the Part I of the tonifying Qi pipeline connection and leads to the tonifying Qi by the valve block
The Part II of road connection.
Preferably, the tonifying Qi chamber include the major diameter section that is connected with the air supply passage and with the tonifying Qi pipeline connection
Path section, forms step surface between the major diameter section and the path section, the valve block is engaged with the step surface.
Preferably, biasing member is further included, the bias force of the step surface is pressed to for applying to the valve block.
Preferably, through hole is provided with the side wall of the cylinder, the through hole forms the air supply passage, and the through hole is
Stepped hole, the stepped hole include the aperture section connected with the cylinder inner cavity and the macropore for installing the cavity body structure
Section.
Preferably, the biasing member includes spring, and one end of the spring is resisted against on the step surface of the stepped hole, separately
One end is resisted against on the valve block.
On the other hand, the utility model adopts the following technical solution：
A kind of refrigeration system, including reciprocating compressor as described above.
Preferably, the refrigeration system further includes flash vessel, and the flash vessel passes through tonifying Qi pipeline and the reciprocating pressure
The air supply passage of contracting machine is connected.
Another further aspect, the utility model adopts the following technical solution：
A kind of refrigerator, including refrigeration system as described above.
Small-sized single cylinder reciprocating compressor provided by the utility model sets the air supply passage for tonifying Qi on cylinder, leads to
The single cylinder Two-stage Compression that compressor is realized to the mode of compressor progress Gas-supplying enthalpy-increasing is crossed, improves the system of compressor unit volume
Cold, in this way, the reciprocating refrigerating capacity scope in the case where not changing rotating speed of the single cylinder for improving same discharge capacity so that compression
Machine can match the refrigerator of bigger volume, while can effectively improve the energy efficiency coefficient COP of compressor, so as to reduce the consumption of refrigerator
Electricity.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the top view of reciprocating compressor internal structure provided by the utility model；
Fig. 2 shows sectional view along A-A in Fig. 1；
Fig. 3 shows the cooperation knot of the tonifying Qi pipeline of reciprocating compressor provided by the utility model, construction of switch and cylinder
Structure schematic diagram；
Fig. 4 shows the structure diagram of refrigeration system provided by the utility model.
In figure, 1, reciprocating compressor；11st, shell；12nd, motor；13rd, bent axle；14th, cylinder；141st, air supply passage；142、
Through hole；15th, piston component；151st, piston；152nd, connecting rod；153rd, piston pin；16th, construction of switch；161st, cavity body structure；162nd, mend
Air cavity；1621st, major diameter section；1622nd, path section；163rd, valve block；164th, spring；165th, step surface；17th, air intake duct；18th, it is vented
Pipe；2nd, condenser；3rd, evaporator；4th, adjustable throttling；5th, capillary；6th, flash vessel；7th, tonifying Qi pipeline.
Embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It is detailed to describe some specific detail sections below in the detailed description of the utility model.To people in the art
The description of part can also understand the utility model completely without these details for member.In order to avoid obscuring the utility model
Essence, the not narration in detail of known method, process, flow, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but not limited to "
Justice.
In the description of the utility model, it is to be understood that term " first ", " second " etc. are only used for description purpose,
And it is not intended that instruction or hint relative importance.In addition, in the description of the utility model, it is unless otherwise indicated, " more
It is a " it is meant that two or more.
For existing small-sized single cylinder reciprocating compressor refrigerating capacity scope it is small, be difficult to the refrigeration need that meet large-capacity refrigerator
The problem of asking, is preferably the reciprocating frequency-changeable compressor of single cylinder this application provides a kind of small-sized single cylinder reciprocating compressor, can be with
Understand, small-sized single cylinder reciprocating compressor described herein refers to that discharge capacity is less than or equal to the compressor of 11.0cc.
As shown in Figure 1 to Figure 3, its motor 12 and compression assembly for including shell 11 and being arranged in shell 11, compression assembly include
Bent axle 13, cylinder 14 and the piston component 15 being arranged in 14 inner cavity of cylinder rotated under the drive of motor 12, piston component
15 cooperatively form the working chamber of compressor with 14 inner cavity of cylinder, and piston component 15 is connected with bent axle 13, and compressor is also associated with inhaling
Tracheae 17 and exhaust pipe 18, in this way, the rotation of bent axle 13 can drive piston component 15 to move back and forth, realize refrigerant in cylinder 14
Interior air-breathing, compression and exhaust process.Piston component 15 preferably includes connecting rod 152, piston 151 and piston pin 153, connecting rod 152
The eccentric part of one end and bent axle 13 formed and be rotatablely connected, piston 151 is fixed on the other end of connecting rod 152 by piston pin 153
On, in this way, when bent axle 13 rotates, connecting rod 152 is done under the drive of eccentric part together with piston 151 in 14 inner cavity of cylinder
Move back and forth.Cylinder 14 includes cylinder body and is arranged on the end cap of the side of the remote bent axle 13 of cylinder body, and the axis of cylinder body is along piston
151 direction of motion extension.
The air supply passage 141 for tonifying Qi is provided with cylinder 14, in this way, the side by carrying out Gas-supplying enthalpy-increasing to compressor
Formula realizes the single cylinder Two-stage Compression of compressor, improves the refrigerating capacity of compressor unit volume, in this way, improving same discharge capacity
The reciprocating refrigerating capacity scope in the case where not changing rotating speed of single cylinder so that compressor can match the refrigerator of bigger volume,
The energy efficiency coefficient COP of compressor can be effectively improved at the same time, so as to reduce the power consumption of refrigerator.
Preferably, tonifying Qi is carried out to it using the refrigeration system where reciprocating compressor, specifically, as shown in figure 4,
Refrigeration system further includes condenser 2, evaporator 3, adjustable throttling 4, capillary 5 and flash vessel 6, and above-mentioned each structure passes through pipeline
Connection forms refrigerant circulation circuit.Wherein, flash vessel 6 is connected by tonifying Qi pipeline 7 and the air supply passage 141 of reciprocating compressor 1
Connect, tonifying Qi is carried out to reciprocating compressor 1 using flash vessel 6.
To avoid in air supply passage 141 losing heart when tonifying Qi is not required in compressor, it is preferable that the application provides reciprocating
Compressor further includes the construction of switch 16 for connecting and cutting off air supply passage 141 with tonifying Qi pipeline 7, when needing tonifying Qi,
Air supply passage 141 is connected with tonifying Qi pipeline 7 by construction of switch 16, compressor is mended using the refrigerant in flash vessel 6
Gas, when tonifying Qi is not required, is disconnected air supply passage 141 and tonifying Qi pipeline 7 by construction of switch 16, so as to avoid in compressor
The leakage of refrigerant.
Construction of switch 16 can be the device that can realize pipeline break-make, to realize the automatic inflating device of compressor, it is preferable that
As shown in Figure 3, construction of switch 16 includes cavity body structure 161, is preferably substantially cylindrical in shape, and tonifying Qi chamber is formed in cavity body structure 161
162, valve block 163 is provided with tonifying Qi chamber 162, and tonifying Qi chamber 162 is divided the Part I to be connected with tonifying Qi pipeline 7 by valve block 163
The Part II connected with air supply passage 141, in this way, the tonifying Qi provided when the gas pressure in compressor and flash vessel 6
When pressure is quite or pressure differential is smaller, explanation need not carry out tonifying Qi to compressor, and valve block 163 is failure to actuate at this time, 163 energy of valve block
Enough prevent the gas in compressor from leaking into tonifying Qi pipeline 7, ensure the mass flow of compressed gas in cylinder 14, and when compression
When gas pressure in machine is less than superfeed pressure, valve block 163 automatically opens up under the promotion of superfeed pressure, the gas in flash vessel 6
Body is entered in the working chamber of cylinder 14 by tonifying Qi pipeline 7 through tonifying Qi chamber 162 and air supply passage 141, to realize to compressor
Tonifying Qi, until when the gas atmosphere in compressor is suitable with superfeed pressure, valve block 163 resets again.Valve block 163 can be bullet
Property piece, its one end are fixed, and the other end can be deformed upon under the promotion of air pressure air supply passage 141 to be connected with tonifying Qi pipeline 7,
And resetted when both sides air pressure is suitable under the action of elasticity air supply passage 141 and tonifying Qi pipeline 7 to be disconnected, or soft
Property piece either plastic construction, the reset of flexible sheets or plastic construction is realized by way of setting biasing member (to be had specific below
Introduce).
It is further preferred that opened to avoid pushing moving valve plate 163 due to compressor internal pressure, especially when valve block 163 is soft
Property piece or during plastic construction, tonifying Qi chamber 162 includes the major diameter section 1621 connected with air supply passage 141 and is connected with tonifying Qi pipeline 7
Path section 1622, step surface 165 is formed between major diameter section 1621 and path section 1622, valve block 163 matches with step surface 165
Close, specifically, air supply passage 141 and tonifying Qi pipeline 7 can be disconnected when valve block 163 is resisted against on step surface 165, work as valve block
163 can connect air supply passage 141 with tonifying Qi pipeline 7 when leaving step surface 165.
It is further preferred that further including biasing member, the bias force of step surface 165 is pressed to for valve block 163 to be applied, especially
When valve block 163 is flexible or plastic construction, valve block 163 is pressed into step surface 165 under the action of bias force, in this way, also
The superfeed pressure critical value of compressor, superfeed pressure critical value, that is, superfeed pressure energy can be adjusted by varying the size of bias force
Gas pressure value when enough just valve block 163 is pushed open in compressor.
It is further preferred that for convenience of the assembling of construction of switch 16, tonifying Qi pipeline 7 and cylinder 14, air supply passage 141 is set
Put on the cylinder wall of the cylinder body of cylinder 14, opening of the air supply passage 141 in the cavity wall of institute's cylinder inner cavity, which is formed, to be used to carry out
The gas supplementing opening of tonifying Qi, the setting position by reasonably arranging air supply passage 141 can reduce reciprocating compressor knot to the greatest extent
The change of structure, and can obtain more preferable tonifying Qi effect by carrying out tonifying Qi to 14 inner cavity of cylinder in the side wall of cylinder 14.Tool
Body, through hole 142 is provided with the side wall of cylinder 14, which forms the air supply passage 141 of compressor, construction of switch 16
One end be inserted into through hole 142, it is preferable that through hole 142 is stepped hole, and stepped hole includes big hole section and aperture section, wherein, it is small
Hole section is connected with 14 inner cavity of cylinder, and construction of switch 16 is inserted into big hole section.It is further preferred that the cavity knot of construction of switch 16
Structure 161 is in the tubular structure of both ends open, and one end of tubular structure is inserted into big hole section, and the end face of tubular structure 161 with
The step surface of stepped hole abuts against, and one end of biasing member such as spring 164 is resisted against on the step surface of stepped hole, the other end against
On valve block 163.Tonifying Qi pipeline 7 is preferably inserted into aperture section.
Further, in the breathing process of compressor, by movement of the piston 151 in cylinder 14, cylinder 14 is caused
Interior pressure is less than the pressure of refrigerant in compressor return air pipeline, so that the suction valve chip of compressor is opened, the refrigerant of low pressure
Into in cylinder 14, in this process, when the position of 151 end face of piston does not move to gas supplementing opening, low-pressure gas suction compression
Chamber, compressor air suction, and when 151 end face of piston moves to and crosses gas supplementing opening, gas supplementing opening is connected with compression chamber, if opening at this time
Close structure 16 to connect gas supplementing opening with tonifying Qi pipeline 7, then the gas in flash vessel 6 can be filled into through tonifying Qi pipeline 7 and gas supplementing opening
In compression chamber, the tonifying Qi to compressor is realized.Afterwards, the suction muffler due to compressor and the pressure phase in 14 working chamber of cylinder
When, suction valve chip is closed, and piston 151 proceeds by compression, and the volume of compression chamber reduces, the pressure increase in compression chamber, until
Exhaust valve plate is opened, high temperature and high pressure gas discharge compression chamber, in the compression process of compressor, when benefit is crossed in 151 end face of piston
During gas port, the lateral surface of piston 151 can seal gas supplementing opening, so that the connection of tonifying Qi pipeline 7 and compression chamber is cut off, in this way, energy
Enough prevent the gas in flash vessel 6 from being flowed into through gas supplementing opening in the shell of compressor.Based on this, it is necessary to setting position to gas supplementing opening
Optimize, to avoid there is tonifying Qi less than the situation that the gas in compression chamber or in compression chamber is leaked by tonifying Qi pipeline 7.
Preferably, as shown in fig. 1, the cylinder inner cavity position farthest apart from bent axle is (it is understood that distance herein refers to hanging down
Straight distance, such as the farthest position of vertical range of the axis apart from bent axle, in the embodiment shown in Figure 2, which is end
The inner face of lid) with the distance between the center line of gas supplementing opening it is H, the movement travel of piston 151 is L, distance H and movement travel
The scope of the ratio i of L is 0.2≤i≤0.5.
The size of gas supplementing opening cannot be excessive, can not be too small, the excessive time for influencing whether suction valve chip unlatching and air-breathing
Amount, it is too small, the pressure and air compensation of tonifying Qi can be influenced, it is preferable that the maximum area of gas supplementing opening is more than or equal to 1.5mm2, it is less than
Equal to 13mm2, for example, when gas supplementing opening is circular, as shown in figure 3, the scope of its diameter D is 1.5mm≤D≤4mm.
Further, present invention also provides a kind of refrigerator, using above-mentioned Single-cylinder Reciprocating Compressor, can effectively carry
The cold excursion of high refrigerator, and reduce the energy consumption of refrigerator.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred solution can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only exemplary, and it is nonrestrictive, without departing from the utility model
In the case of basic principle, those skilled in the art can be directed to the various obvious or equivalent modification that above-mentioned details is made
Or replace, all it is included in the right of the utility model.
Claims (14)
- A kind of 1. Miniature reciprocating compressor, it is characterised in that the reciprocating compressor is Single-cylinder Reciprocating Compressor, including Bent axle, cylinder and the piston being arranged in the cylinder, the piston are connected with the bent axle, pass through the rotation band of the bent axle Move the piston to move back and forth in the cylinder, the air supply passage for tonifying Qi is provided with the cylinder.
- 2. Miniature reciprocating compressor according to claim 1, it is characterised in that the cylinder includes cylinder body, described Through hole is provided with the cylinder wall of cylinder body, the through hole forms the air supply passage.
- 3. Miniature reciprocating compressor according to claim 2, it is characterised in that the cylinder inner cavity is apart from the bent axle Distance between the center line of opening of the farthest position and the air supply passage in the cavity wall of the cylinder inner cavity is H, institute The movement travel for stating piston is that the scope of the ratio i of L, distance H and movement travel L are 0.2≤i≤0.5.
- 4. Miniature reciprocating compressor according to claim 1, it is characterised in that the air supply passage is in the cylinder The maximum area of opening in the cavity wall of chamber is more than or equal to 1.5mm2, less than or equal to 13mm2。
- 5. reciprocating compressor according to claim 1, it is characterised in that the air supply passage is in the cylinder inner cavity Opening in cavity wall is circular hole, and the diameter D of the circular hole is more than or equal to 1.5mm, less than or equal to 4mm.
- 6. the Miniature reciprocating compressor according to one of claim 1 to 5, it is characterised in that the air supply passage connection Tonifying Qi pipeline, the reciprocating compressor are further included for by air supply passage and the tonifying Qi pipeline connection and the switch knot cut off Structure.
- 7. Miniature reciprocating compressor according to claim 6, it is characterised in that the construction of switch includes cavity knot Structure, forms tonifying Qi chamber in the cavity body structure, and the tonifying Qi intracavitary is provided with valve block, the valve block by the tonifying Qi chamber be divided into The Part I of the tonifying Qi pipeline connection and the Part II connected with the air supply passage.
- 8. Miniature reciprocating compressor according to claim 7, it is characterised in that the tonifying Qi chamber includes and the tonifying Qi The major diameter section of passage connection and the path section with the tonifying Qi pipeline connection, platform is formed between the major diameter section and the path section Terrace, the valve block are engaged with the step surface.
- 9. Miniature reciprocating compressor according to claim 8, it is characterised in that biasing member is further included, for described Valve block applies the bias force for pressing to the step surface.
- 10. Miniature reciprocating compressor according to claim 9, it is characterised in that be provided with the side wall of the cylinder Through hole, the through hole form the air supply passage, and the through hole is stepped hole, and the stepped hole includes connecting with the cylinder inner cavity Logical aperture section and the big hole section for installing the cavity body structure.
- 11. Miniature reciprocating compressor according to claim 10, it is characterised in that the biasing member includes spring, institute The one end for stating spring is resisted against on the step surface of the stepped hole, and the other end is resisted against on the valve block.
- 12. a kind of refrigeration system, it is characterised in that including the Miniature reciprocating compressor as described in one of claim 1 to 11.
- 13. refrigeration system according to claim 12, it is characterised in that the refrigeration system further includes flash vessel, described Flash vessel is connected by tonifying Qi pipeline with the air supply passage of the reciprocating compressor.
- 14. a kind of refrigerator, it is characterised in that including the refrigeration system as described in claim 12 or 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193551.XU CN207278456U (en) | 2017-09-18 | 2017-09-18 | Miniature reciprocating compressor, refrigeration system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193551.XU CN207278456U (en) | 2017-09-18 | 2017-09-18 | Miniature reciprocating compressor, refrigeration system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278456U true CN207278456U (en) | 2018-04-27 |
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ID=61982210
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721193551.XU Active CN207278456U (en) | 2017-09-18 | 2017-09-18 | Miniature reciprocating compressor, refrigeration system and refrigerator |
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| Country | Link |
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| CN (1) | CN207278456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654355A (en) * | 2017-09-18 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Miniature reciprocating compressor, refrigeration system and refrigerator |
| CN108757396A (en) * | 2018-06-11 | 2018-11-06 | 中国科学院理化技术研究所 | A kind of reciprocating compressor air supply mechanism |
-
2017
- 2017-09-18 CN CN201721193551.XU patent/CN207278456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654355A (en) * | 2017-09-18 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Miniature reciprocating compressor, refrigeration system and refrigerator |
| CN108757396A (en) * | 2018-06-11 | 2018-11-06 | 中国科学院理化技术研究所 | A kind of reciprocating compressor air supply mechanism |
| CN108757396B (en) * | 2018-06-11 | 2019-07-05 | 中国科学院理化技术研究所 | A kind of reciprocating compressor air supply mechanism |
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