CN205209068U - Compressor rotational speed can energy -conserving refrigerator refrigerating system of logical adaptive - Google Patents

Compressor rotational speed can energy -conserving refrigerator refrigerating system of logical adaptive Download PDF

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Publication number
CN205209068U
CN205209068U CN201520948970.4U CN201520948970U CN205209068U CN 205209068 U CN205209068 U CN 205209068U CN 201520948970 U CN201520948970 U CN 201520948970U CN 205209068 U CN205209068 U CN 205209068U
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China
Prior art keywords
compressor
crankcase
speed
oil
rotary speed
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CN201520948970.4U
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Chinese (zh)
Inventor
姚辉军
张韦林
许晓峰
方伟涛
苗锋
宋国华
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Jiaxipera Compressor Co Ltd
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Jiaxipera Compressor Co Ltd
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Abstract

The utility model discloses a compressor rotational speed can energy -conserving refrigerator refrigerating system of logical adaptive, including variable rotational speed compressor, frequency conversion control board, mechanical type temperature controller and refrigeration cycle pipe -line system, the frequency conversion control board includes power rectifier module, switching power supply module, master control circuit module, drive module, inverter circuit module and temperature controller 0, variable rotational speed compressor is equipped with a plurality of oil groove, a slant wide groove and ring channels that distribute around the circumference including the crankcase of taking oily structure back to, the surface of the axial hole of crankcase, and wide groove's top is equipped with a circular oil leak hole, the up end of crankcase is equipped with annular retaining ring, and annular retaining ring is located the central scope of the motor solenoid of frequency conversion compressor, and annular retaining ring department is equipped with the oil leak hole, the lower terminal surface of crankcase is equipped with marginal retaining ring. The utility model discloses can be when satisfying the required refrigeration effect emplacement compressor revolution of customer, reach the target of resources are saved cost and energy consumption.

Description

A kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic
Technical field
The utility model relates to a kind of refrigerator refrigeration system, and specifically a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic.
Background technology
The main feature of following refrigerator development has frequency conversion, intellectuality etc., and in refrigerator system, the main object improved is compressor and control system.Along with country is to the policy implication of energy-conserving product, domestic refrigerator manufacturing firm is devoted to improve the energy consumption grade of refrigerator one after another, and energy-conservation basis is developed the lower and product that resource consumption is less of cost.The refrigerator of main flow can be divided into and determines frequency refrigerator and frequency conversion refrigerator two class in the market, and frequently fixed and frequency conversion is mainly for compressor.The revolution of invariable frequency compressor is constant, after only reaching refrigerator design temperature after start work, and compressor shutdown.The revolution of frequency-changeable compressor can adjust according to temperature, keeps running up after start work, and after reaching refrigerator design temperature, compressor shutdown, runs with the slow-speed of revolution during follow-up startup again.At present, domestic market surely frequently refrigerator occupy the overwhelming majority, this start late with China converter technique and market orientation relevant.Fixed frequently comparatively ripe, invariable frequency compressor inner components is not so good as frequency conversion complexity (especially motor part), advantage of lower cost.But because its revolution is constant, startup-shutdown is frequent, refrigeration fluctuation is large, and energy consumption is large, and noise is higher, affects the life-span of compressor, waste resource.Frequency conversion refrigerator can realize fast-refrigerating, and keep after reaching rear design temperature slowly running, refrigerating capacity fluctuation is little, and energy-saving effect is obvious.But, still have several key factor to affect the refrigeration of frequency conversion refrigerator at present, comprising: the pump oil of frequency-changeable compressor, oil return ability, control panel revolution accurately controls and temperature controller design etc.1, about pump oil, the oil return ability of first factor compressor itself, mainly need to design a kind of oil pumping device being suitable for compression machine width range of revolution, design parts are the oil guide pipe structure of bent axle and lower end.Such as, application number be 201010294414.1 Chinese invention patent application " be applied to hermetically sealed compressor pump oil structure ", just apply in frequency-changeable compressor.And with regard to oil return ability, most refrigeration oil participates in the operation of compressor own, all the other parts enter cooling cycle system.From major part, as long as the oil return characteristic of the refrigeration oil of compressor own can be improved, the oily internal circulating load of refrigeration oil in compressor inside just can be improved.From compressor internal analysis, more refrigeration oil is attached on inner surface housing, in stator line bag, crankcase surface, oil wherein in shell inner surface and stator line bag can get back to housing bottom reserve by gravity and fluid tension force, but the more oil in crankcase surface is only in attachment state, reserve cannot be got back to, therefore cause the minimizing participating in interior oil internal circulating load, especially under high revolution condition, the effectively lubricating of part cannot be ensured.Such as, as shown in Figure 1, adopt the compressor of existing structure crankcase, refrigeration oil in its housing bottom oil storage tank is by the rotation of compressor crank shaft, taken to crankcase top from bottom to up, crankcase only opens an oil leaking hole 1 at end face, and the oil that crankcase top is accumulated is back to housing bottom by oil leaking hole 1, completes the oil circulation of first compression machine inside.Composition graphs 2 can be found out, oil leaking hole 1 simplicity of design, for one-step casting forms, without the need to post-production.In Fig. 3, arrow is depicted as the flow direction of refrigeration oil.As can be seen from the figure, the upper surface due to crankcase is plane, and surface freezing oil adhesion amount is many, and the mobility of refrigeration oil is poor, and the consequence caused is that the amount participating in interior oil circulation directly reduces, and reduces lubrication and cooling-down effect.Secondly, the refrigeration oil overwhelming majority downward by oil leaking hole 1 flows into rotor, does not flow directly into motor lines bag 2.During due to compressor operating, motor is main pyrotoxin, and rotor is in high-speed motion state.The oil entering rotor is got rid of by the high-speed motion of rotor and splashes surrounding, can produce certain noise, and meanwhile, the cooling-down effect of motor lines bag 2 is deteriorated.2, accurately control about second factor control panel revolution, control panel rotating speed needs refrigerator master control borad to provide rotary speed information, self cannot judge the reasonable rotating speed of target required for refrigerator.And refrigerator master control borad needs design separately, not only increase cost but also take refrigerator foaming sheaf space.3, about the 3rd factor temperature controller design, the special frequency-changeable compressor of common single system mechanical temperature control refrigerator needs to redesign pipe-line system, control circuit system, box shape etc., and input cost is larger.
Summary of the invention
Technical problem to be solved in the utility model is that proposing one can need fixation compressor revolution according to client, thus realizes both meeting customer requirement, and the compressor rotary speed of the cost that economizes on resources again can the adaptive energy-saving refrigerator refrigeration system of logic.
For solving the problem, a kind of compressor rotary speed of the utility model the adaptive energy-saving refrigerator refrigeration system of logic can comprise speed variable compressor, VFC plate, mechanical temperature controller and refrigerating circulation system, and described mechanical temperature controller monitoring temperature also controls 220 ~ 240V live wire break-make; Described VFC buttress regulates the revolution of described speed variable compressor according to the monitor temperature of described mechanical temperature controller; Described speed variable compressor comprises the crankcase of band oil-returning structure, and described VFC plate comprises power supply rectification filter module, switch power module, governor circuit module, driver module, inverter circuit module and communication module; Described refrigerating circulation system only has the direct-cooled circulatory system of a capillary, and it comprises condenser, evaporimeter, capillary, device for drying and filtering and cold-producing medium; The surface of the axial hole of the described crankcase of described speed variable compressor is provided with some the oil grooves around circle distribution, and described oil groove is skewed slot; The surface of the axial hole of described crankcase is separately provided with an oblique sipes, and the top of described sipes is provided with a circular oil leaking hole; The surface of the axial hole of described crankcase is also provided with a cannelure, and described cannelure entirety is skewed slot; The upper surface of described crankcase is provided with annular retaining ring, and described annular retaining ring is positioned at the center range of the motor lines bag of described frequency-changeable compressor, and described annular retaining ring place is provided with oil leaking hole; The lower surface of described crankcase is provided with edge back-up ring.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, the height 0.5 ~ 1mm of described edge back-up ring.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, and the described oil groove width set by described crankcase surface is 2 ~ 5mm.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, and the described oil leaking hole that described annular retaining ring place establishes has one.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, described VFC buttress determines compressor rotary speed according to the operating characteristic of compressor: when the compressor use slow-speed of revolution oils structure, control panel controls it and operates between 1200rpm to 4500rpm, and realizes infinitely variable speeds; When compressor use invariable frequency compressor oil structure time, control panel controls it and operates in two fixing rotating speeds, and realizing invariable frequency compressor pump body structure can the effect of double speed running.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, and described two fixing rotating speeds are respectively 2800rpm and 3600rpm.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, described VFC plate calculates the data such as compressor operating electric current, power output, working time, start-stop ratio automatically, and according to the data assessment refrigerator payload calculated, control compressor rotary speed.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, and the cold-producing medium of the described direct-cooled circulatory system only has unique flow path in refrigerator system, and pipe-line system is other does not establish blower fan or air door.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, and the temperature-sensing probe of described mechanical temperature controller detects evaporator temperature in refrigerator when reaching turn-on temperature point, connects AC power live wire, makes compressor operating; When described temperature-sensing probe detect evaporator temperature in refrigerator reach shutdown temperature point time, disconnect AC power live wire, make compressor out of service.
Above-mentioned a kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, the operation of described speed variable compressor adopts following control law: during compressor initiating switchup, according to control objectives rotating speed running time, the paramount rotating speed that rises afterwards runs, until described mechanical temperature controller disconnects; When compressor starts again, control first object rotating speed according to previous Homes Using TV; When compressor runs again, control compressor rotary speed according to real-time Homes Using TV and available machine time; Latter two rate-determining steps is repeated afterwards during start.
The utility model patent is owing to adopting said structure, and it while meeting refrigeration fixation compressor revolution needed for client, can reach the target of economize on resources cost and energy consumption.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of existing compressor crankcase;
Fig. 2 is the structure schematic diagram of existing compressor crankcase;
Fig. 3 is the assembling of existing crankcase and motor and the flow schematic diagram of refrigeration oil;
Fig. 4 is the Facad structure schematic diagram of the utility model compressor crankcase;
Fig. 5 is the structure schematic diagram of the utility model compressor crankcase;
Fig. 6 is the sectional view at angle oil groove position in Fig. 4;
Fig. 7 is the assembling of the utility model crankcase and motor and the flow schematic diagram of refrigeration oil;
Fig. 8 is the electrical connecting wires figure of the utility model refrigerator refrigeration system;
Fig. 9 is the utility model frequency conversion plate rotating speed control logic block diagram;
Figure 10 is application example key diagram of the present utility model;
Figure 11 is the circuit theory diagrams of the power supply rectification filter module of the utility model control panel;
Figure 12 is the circuit theory diagrams of the switch power module of the utility model control panel;
Figure 13 is the circuit theory diagrams of the governor circuit module of the utility model control panel;
Figure 14 is the circuit theory diagrams of the driver module of the utility model control panel;
Figure 15 is the circuit theory diagrams of the inverter circuit module of the utility model control panel;
Figure 16 is the circuit theory diagrams of the communication module of the utility model control panel.
Detailed description of the invention
The utility model energy-saving refrigerator refrigeration system comprises speed variable compressor, VFC plate, mechanical temperature controller (abbreviation temperature controller) and refrigerating circulation system.Speed variable compressor is the core component of this system, and its performance height determines the refrigerating capacity height of refrigeration system.Mechanical temperature controller adopts conventional mechanical temperature controller, for monitoring temperature, 220 ~ 240V live wire break-make can be controlled, when temperature-sensing probe detect evaporator temperature in case reach turn-on temperature point time, connect AC power (220 ~ 240V/50/60HZ) live wire, make compressor operating; When temperature-sensing probe detect evaporator temperature in case reach shutdown temperature point time, disconnect AC power (220 ~ 240V/50/60HZ) live wire, make compressor out of service.VFC buttress regulates the revolution of speed variable compressor according to the monitor temperature of mechanical temperature controller.Refrigerating circulation system adopts the conventional direct-cooled circulatory system (single system direct cooling refrigerator or refrigerator system) only having a capillary, comprise condenser, evaporimeter, capillary, device for drying and filtering and cold-producing medium etc., in order to complete whole kind of refrigeration cycle (referring to Fig. 8).Cold-producing medium only has unique flow path in refrigerator system, and the other device such as circulating fan, air door do not established for accelerating heat exchange of pipe-line system.
Speed variable compressor comprises the crankcase of band oil-returning structure.As shown in Figure 4, the crankcase of the band oil-returning structure that the utility model adopts, be provided with some the oil grooves around circle distribution (comprising skewed slot 3, skewed slot 4, annular oil groove 9, angle oil groove 5 (oblique sipes)), circular oil leaking hole 10 and annular retaining ring 6 in the upper surface of the axial hole of crankcase, each oil groove width is 2 ~ 5mm.Circular oil leaking hole 10 is located at the top of angle oil groove 5, and annular oil groove 9 entirety is skewed slot.As shown in Figure 5, annular retaining ring 7 and edge back-up ring 8 is provided with in lower surface, annular retaining ring 7 is positioned at the center range of the motor lines bag of speed variable compressor, annular retaining ring 7 place is provided with circular oil leaking hole 10, the refrigeration oil major part that circular oil leaking hole 10 flows down directly enters motor lines bag, and small part flows to edge back-up ring 8 due to surface tension of liquid, and edge back-up ring 8 move towards along crankcase edge to distribute, height 0.5 ~ 1mm, ensures the safe distance between motor lines bag and crankcase.The object of these designs is all to make refrigeration oil along the direction flowing of specifying, and improves flowing velocity by difference in height.
Though the structural design shown in Fig. 4 and Fig. 5 comparatively existing structure is complicated, but skewed slot 3,4 and circular oil leaking hole 10 are one-step casting and form, without the need to post-production, the processing of axial hole circumferential groove only needs design once the processing that gang tool can be completed the utility model structure respective grooves, does not affect production efficiency.The structure height of the edge back-up ring 8 in Fig. 5 is 0.5 ~ 1mm, and this parameter is the safe distance for ensureing between motor lines bag and crankcase.
Fig. 6 is the profile of angle oil groove 5 in Fig. 4, has two places skewed slots designs in figure, and one is the design of annular oil groove 9, and two is designs of wide mouth skewed slot 5, and object is all the flowing in order to accelerate refrigeration oil.
In Fig. 7, the direction of arrow is the flow direction of refrigeration oil.As can be seen from the figure, refrigeration oil is along inside and outside two circumferential directions flowing, and final remittance angle oil groove 5, enters oil leaking hole 10.In figure, the area of two circumferential directions and skewed slot is less than the area of plane on existing structure crankcase greatly, decrease the adhesion amount of refrigeration oil on surface to a great extent, all devise flume structure at annular oil groove 9 and angle oil groove 5 simultaneously, accelerate the flowing of refrigeration oil further.Refrigeration oil flows downward from oil leaking hole 10, has annular retaining ring 7 in bottom, and ensure that most refrigeration oil flows into motor lines bag 2, all the other minority refrigeration oils flow along the edge back-up ring 8 in Fig. 5, and wherein major part also flows into motor lines bag 2.Contrast with existing structure, apply the cooling-down effect that motor lines bag 2 of the present utility model directly can realize the refrigeration oil utilizing oil leaking hole 10 to flow into, the improvement of motor temperature can extend the service life of compressor.
The oil-returning structure crankcase that the utility model relates to is applied in frequency-changeable compressor, and under high revolution, upper speed oil is fast, can ensure sufficient lubrication, cooling, but under slow speed, oil and slow.Because the utility model reduces oil mass loss, accelerates fluid flowing, therefore, it is possible to ensure lubrication and cooling-down effect in interior oil circulation.And the crankcase of existing structure cannot ensure the effect of refrigeration oil completely under slow speed, need the groundwater increment increasing refrigeration oil, therefore can bring the adverse effects such as compressor oil spout.
As shown in Figure 8, the VFC plate 1 of the utility model system only has three power circuits to be connected with refrigerator, live wire L, zero line N, temperature controller W outlet T respectively, this bus connection method can farthest save frequency conversion refrigerator cost, without the need to adding frequency conversion master control borad, common single system refrigerator just can be allowed to become frequency conversion refrigerator.The operation of compressor C is controlled by temperature controller W.Illuminating lamp L1 is controlled by lamp switch K1, and heater strip H is controlled by magnetic-sensing temperature switch K2.
As shown in Figure 11 to Figure 16, VFC plate comprises power supply rectification filter module, switch power module, governor circuit module, driver module, inverter circuit module and communication module.Compressor control plate provides speed controling signal just can realize converting operation without the need to refrigerator master control borad; VFC buttress determines compressor rotary speed according to the operating characteristic of compressor: when the compressor use slow-speed of revolution oils structure, control panel can control it and operate between 1200rpm to 4500rpm, and realizes infinitely variable speeds; When compressor use invariable frequency compressor oil structure time, control panel can control it and operate in two fixing rotating speeds (such as 2800rpm and 3600rpm), and realizing invariable frequency compressor pump body structure can the effect of double speed running.VFC plate also can calculate the data such as compressor operating electric current, power output, working time, start-stop ratio automatically, and according to the data assessment refrigerator payload calculated, controls compressor rotary speed, realize energy-saving effect to greatest extent.
Composition graphs 9 can be found out:
1) when refrigerator plug-in, temperature controller closes first, compressor initiating switchup also reaches rotating speed of target Speed=S1 (S1 span 1200 ~ 4500rpm), run fixing duration T (T >=1min), the paramount rotating speed ST (ST > S1) that rises afterwards runs, until temperature controller disconnects.
2) when ice the temperature inside the box reaches break point; temperature controller disconnects first; compressor shutdown; program calculates available machine time t1_on automatically; when refrigerator temperature controller closes again; compressor start, program calculates t1_off downtime, previous Homes Using TV PCT1=t1_on/ (t1_on+t1_off) automatically.
3) after compressor starts for the 2nd time, the 1st rotating speed of target selective rules is as follows:
If PCT1 < is X1, rotating speed of target Speed=(S1-Δ S);
If PCT1 > is X2, rotating speed of target Speed=(S1+ Δ S);
If X1 < PCT1 < is X2, rotating speed of target Speed=S1.
(wherein, 0 < X1 < X2 < 1, Δ S > 0)
4) compressor is when rotating speed of target runs, and the accumulated running time in this start cycle counts T1, and program calculates the Homes Using TV PCT2=T1/ (T1+t1_off) of the current cycle of operation automatically.Compressor first runs with the 1st rotating speed of target, until after current Homes Using TV PCT2 reaches certain setting value, switch to the 2nd, the 3rd, the n-th rotating speed of target, concrete rule is as follows:
If PCT2 < is Y1, rotating speed of target is Speed;
If Y1 < PCT2 < is Y2, rotating speed of target is (Speed+ Δ S1);
If Y2 < PCT2 < is Y3, rotating speed of target is (Speed+ Δ S2);
If Yn < PCT2 < is Yn+1, rotating speed of target is (Speed+ Δ Sn);
If PCT2 > is Yn+1, or T1 > N hour, rotating speed of target is maximum speed ST2, until temperature controller disconnects.
(wherein, n >=1, N > 0,0 < Y1 < Y2 < Y3 < Yn < Yn+1 < 1, Δ Sn > 0)
5) when m time (m >=2) such as temperature controllers disconnect; compressor is shut down for the m time; program computation the m time available machine time tm_on, when compressor the m+1 time starts, program computation the m time tm_off downtime, previous Homes Using TV PCT1=tm_on/ (tm_on+tm_off).
6) after compressor the m+1 time (m >=2) starts, the 1st rotating speed of target selective rules is as follows:
(suppose, the 1st rotating speed of target started for the m time is Sm)
If PCT1 < is X1, rotating speed of target Speed=(Sm-Δ S);
If PCT1 > is X2, rotating speed of target Speed=(Sm+ Δ S);
If X1 < PCT1 < is X2, rotating speed of target Speed=Sm.
(wherein, 0 < X1 < X2 < 1, Δ S > 0)
7) compressor is when rotating speed of target runs, and the accumulated running time in current start cycle counts Tm, and program calculates the Homes Using TV PCT2=Tm/ (Tm+tm_off) of the current cycle of operation automatically.Compressor first runs with the 1st rotating speed of target, until after current Homes Using TV PCT2 reaches certain setting value, switch to the 2nd, the 3rd, the n-th rotating speed of target, concrete rule is as follows:
If PCT2 < is Y1, rotating speed of target is Speed;
If Y1 < PCT2 < is Y2, rotating speed of target is (Speed+ Δ S1);
If Y2 < PCT2 < is Y3, rotating speed of target is (Speed+ Δ S2);
If Yn < PCT2 < is Yn+1, rotating speed of target is (Speed+ Δ Sn);
If PCT2 > is Yn+1, or T1 > N hour, rotating speed of target is maximum speed ST2, until temperature controller disconnects.
After this, 5), 6), 7) step repetitive cycling performs.
Application example as shown in Figure 10 achieves three kinds of control laws, wherein:
Control law 1: during compressor initiating switchup, according to control objectives rotating speed running time.
When refrigerator plug-in, temperature controller closes first, compressor initiating switchup also reaches rotating speed of target Speed=S1 (S1 span 1200 ~ 4500rpm), run fixing duration T (T >=1min), the paramount rotating speed ST (ST > S1) that rises afterwards runs, until temperature controller disconnects.
Control law 2: when compressor starts again, controls first object rotating speed according to previous Homes Using TV.
Previous Homes Using TV PCT1=t1_on/ (t1_on+t1_off);
If PCT1 < is X1, rotating speed of target Speed=(S1-Δ S);
If PCT1 > is X2, rotating speed of target Speed=(S1+ Δ S);
If X1 < PCT1 < is X2, rotating speed of target Speed=S1.
(wherein, 0 < X1 < X2 < 1, Δ S > 0)
Control law 3: during compressor operating, controls compressor rotary speed according to real-time Homes Using TV and available machine time.
The Homes Using TV PCT2=T1/ (T1+t1_off) of the front cycle of operation
If PCT2 < is Y1, rotating speed of target is Speed;
If Y1 < PCT2 < is Y2, rotating speed of target is (Speed+ Δ S1);
If Y2 < PCT2 < is Y3, rotating speed of target is (Speed+ Δ S2);
If Yn < PCT2 < is Yn+1, rotating speed of target is (Speed+ Δ Sn);
If PCT2 > is Yn+1, or T1 > N hour, rotating speed of target is maximum speed ST2, until temperature controller disconnects.(wherein, n >=1,0 < Y1 < Y2 < Y3 < Yn < Yn+1 < 1, Δ Sn > 0)
After temperature controller disconnects, control law 3 terminates, and when system requires start again, repeat control law 2 and control law 3, repetitive cycling like this controls compressor rotary speed, reaches energy-saving and frequency-variable effect.
The utility model can be applied to closed or semienclosed reciprocating compressor, Rotary Compressor, dynamic compressors system.

Claims (9)

1. a compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, it comprises speed variable compressor, VFC plate, mechanical temperature controller and refrigerating circulation system, and described mechanical temperature controller monitoring temperature also controls 220 ~ 240V live wire break-make; Described VFC buttress regulates the revolution of described speed variable compressor according to the monitor temperature of described mechanical temperature controller; Described speed variable compressor comprises the crankcase of band oil-returning structure, and described VFC plate comprises power supply rectification filter module, switch power module, governor circuit module, driver module, inverter circuit module and communication module; Described refrigerating circulation system only has the direct-cooled circulatory system of a capillary, and it comprises condenser, evaporimeter, capillary, device for drying and filtering and cold-producing medium; The surface of the axial hole of the described crankcase of described speed variable compressor is provided with some the oil grooves around circle distribution, and described oil groove is skewed slot; The surface of the axial hole of described crankcase is separately provided with an oblique sipes, and the top of described sipes is provided with a circular oil leaking hole; The surface of the axial hole of described crankcase is also provided with a cannelure, and described cannelure entirety is skewed slot; The upper surface of described crankcase is provided with annular retaining ring, and described annular retaining ring is positioned at the center range of the motor lines bag of described frequency-changeable compressor, and described annular retaining ring place is provided with oil leaking hole; The lower surface of described crankcase is provided with edge back-up ring.
2. a kind of compressor rotary speed as claimed in claim 1 can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, the height 0.5 ~ 1mm of described edge back-up ring.
3. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, and it is characterized in that, the described oil groove width set by described crankcase surface is 2 ~ 5mm.
4. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, and it is characterized in that, the described oil leaking hole that described annular retaining ring place establishes has one.
5. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, described VFC buttress determines compressor rotary speed according to the operating characteristic of compressor: when the compressor use slow-speed of revolution oils structure, control panel controls it and operates between 1200rpm to 4500rpm, and realizes infinitely variable speeds; When compressor use invariable frequency compressor oil structure time, control panel controls it and operates in two fixing rotating speeds, and realizing invariable frequency compressor pump body structure can the effect of double speed running.
6. a kind of compressor rotary speed as claimed in claim 5 can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, described two fixing rotating speeds are respectively 2800rpm and 3600rpm.
7. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, described VFC plate calculates the data such as compressor operating electric current, power output, working time, start-stop ratio automatically, and according to the data assessment refrigerator payload calculated, control compressor rotary speed.
8. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, and it is characterized in that, the cold-producing medium of the described direct-cooled circulatory system only has unique flow path in refrigerator system, and pipe-line system is other does not establish blower fan or air door.
9. a kind of compressor rotary speed as claimed in claim 1 or 2 can the adaptive energy-saving refrigerator refrigeration system of logic, it is characterized in that, the temperature-sensing probe of described mechanical temperature controller detects evaporator temperature in refrigerator when reaching turn-on temperature point, connects AC power live wire, makes compressor operating; When described temperature-sensing probe detect evaporator temperature in refrigerator reach shutdown temperature point time, disconnect AC power live wire, make compressor out of service.
CN201520948970.4U 2015-11-24 2015-11-24 Compressor rotational speed can energy -conserving refrigerator refrigerating system of logical adaptive Withdrawn - After Issue CN205209068U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526774A (en) * 2015-11-24 2016-04-27 加西贝拉压缩机有限公司 Energy-saving refrigerator refrigeration system achieving logically self-adaptive rotating speed of compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526774A (en) * 2015-11-24 2016-04-27 加西贝拉压缩机有限公司 Energy-saving refrigerator refrigeration system achieving logically self-adaptive rotating speed of compressor
CN105526774B (en) * 2015-11-24 2018-01-02 加西贝拉压缩机有限公司 A kind of compressor rotary speed can the adaptive energy-saving refrigerator refrigeration system of logic

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