CN211716979U - Small-sized water cooler for coffee machine - Google Patents
Small-sized water cooler for coffee machine Download PDFInfo
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- CN211716979U CN211716979U CN202020385614.7U CN202020385614U CN211716979U CN 211716979 U CN211716979 U CN 211716979U CN 202020385614 U CN202020385614 U CN 202020385614U CN 211716979 U CN211716979 U CN 211716979U
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Abstract
The utility model discloses a small-sized water cooler used on a coffee machine, which comprises an L-shaped base, a compressor, a condenser, an evaporator assembly, a fan, a temperature controller and a temperature sensor, wherein the condenser and the evaporator assembly are connected with the compressor; the evaporator assembly comprises an insulating layer and an evaporator; the evaporator comprises an aluminum block, a temperature sensing pipe, a cold water coil pipe and a refrigerant coil pipe in the aluminum block; the cold water coil is positioned on the outer layer of the aluminum block, one end of the cold water coil is connected with a water pump of the coffee machine through a supercooled water inlet interface, and the other end of the cold water coil is connected with a cold water outlet interface; the refrigerant coil is positioned in the inner layer of the aluminum block, one end of the refrigerant coil is connected with the condenser through a capillary tube, and the other end of the refrigerant coil is connected with the air suction pipe of the compressor through a copper pipe; the temperature sensing pipe is positioned between the cold water coil pipe and the refrigerant coil pipe, one end of the temperature sensor is inserted into the temperature sensing pipe, the other end of the temperature sensor is connected with the temperature controller, the temperature controller is connected with the compressor, the start and stop of the compressor are controlled according to the sensed temperature value, the cold water for drinking at the temperature below 5 ℃ is provided, and the temperature of the outlet water is stable.
Description
Technical Field
The utility model relates to a small-size cold water machine especially relates to a small-size cold water machine for on coffee machine, mainly applies to commercial coffee machine technical field, is a standard configuration of making cold drink product coffee machine.
Background
At present, water dispensers on the market have cold and hot functions, and can provide cold water and hot water, and the cold water preparation mode is generally completed by adopting a refrigeration system, wherein the main components of the refrigeration system comprise a compressor, a condenser, a water tank type evaporator, a capillary tube and the like. The water tank type evaporator is a key part of the water dispenser, and for products with low cold water temperature requirements, the water tank type evaporator mainly comprises a water tank and an evaporation coil, wherein the evaporation coil is wound on the outer wall of the water tank, cold energy is input into water in the water tank through evaporation of a refrigerant in the evaporation coil, so that the water is cooled, drinking cold water is prepared, the temperature of the drinking cold water is generally above 5 ℃, and the change of the outlet water temperature is large.
However, the water dispenser adopting the water tank type evaporator has the following technical defects: 1. the required space is large, the control and the structure are complex, and besides the water temperature, the liquid level of the water tank also needs to be controlled; 2. the water tank is difficult to clean; 3. the evaporator coil is wound on the outer wall of the water tank, so that the refrigeration efficiency is low; 4. the temperature difference of cold water from the water tank is large; 5. the water cooling time in the water tank is long.
Disclosure of Invention
To the existing technical problem, the utility model provides a small-size cold water machine for on coffee machine to reach and provide and drink cold water below 5 ℃, and go out the purpose that the water temperature is stable.
In order to achieve the purpose, the utility model provides a small-size cold water machine for coffee machine, including L type base, install compressor on the base bottom surface, condenser, evaporator assembly that pass through the copper pipe and link to each other with it, install the fan behind the condenser, install temperature controller, cold water inlet interface and cold water outlet interface on the base side, and temperature sensor;
the evaporator assembly comprises an insulating layer and an evaporator arranged in a cavity of the insulating layer;
the evaporator is of a cast aluminum type and comprises an aluminum block, and a temperature sensing pipe, a cold water coil pipe and a refrigerant coil pipe which are arranged in the aluminum block;
the cold water coil is positioned on the outer layer of the aluminum block, one end of the cold water coil is connected with a water pump of the coffee machine through a supercooled water inlet interface, and the other end of the cold water coil is connected with a cold water outlet interface;
the refrigerant coil is positioned in the inner layer of the aluminum block, one end of the refrigerant coil is connected with the condenser through a capillary tube, and the other end of the refrigerant coil is connected with the air suction pipe of the compressor through a copper pipe;
the temperature sensing pipe is positioned between the cold water coil pipe and the refrigerant coil pipe, one end of the temperature sensor is inserted into the temperature sensing pipe, the other end of the temperature sensor is connected with the temperature controller, the temperature controller is connected with the compressor, and the start and stop of the compressor are controlled according to the sensed temperature value.
The working principle of the technical scheme is as follows: the compressor absorbs low-temperature low-pressure refrigerant from the evaporator to compress the low-temperature low-pressure refrigerant into high-temperature high-pressure steam, the high-temperature high-pressure steam is condensed into high-pressure low-temperature liquid in the condenser, meanwhile, the fan blows out sucked air and passes through the condenser, and the condenser transmits condensation heat released by the refrigerant into the air. The liquid refrigerant from the condenser is throttled by the capillary tube and changed into a low-temperature and low-pressure gas-liquid mixture to enter the evaporator, wherein the liquid is evaporated into low-temperature and low-pressure steam by absorbing the heat of the aluminum block in the refrigerant coil, and the low-temperature and low-pressure steam is sucked by the compressor and enters the next cycle. Thus, the temperature of the aluminum block can be reduced, and the water in the cold water coil inside the aluminum block is cooled. Therefore, the device only prepares cold water in the coffee machine, does not have the function of supplying hot water, and has stable outlet temperature of the cold water.
Furthermore, the gaps among the cold water coil, the refrigerant coil and the temperature sensing pipe are more than 5 mm.
Further, the refrigerant coil is a 2-layer tube.
Furthermore, the heat preservation comprises a heat preservation layer front cover and a heat preservation layer rear cover which are connected with each other.
Furthermore, the evaporator assembly is fixed on the base through a metal plate.
Further, the utility model discloses still including covering at the top shell of condenser, fan, capillary, compressor and evaporimeter subassembly periphery, and the top shell is connected with the base.
Further, the utility model discloses still including installing the power plug to the base side.
Compared with the existing water dispenser, the device is mainly characterized in that the evaporator has the following structural form: A. the cast-aluminum evaporator mainly comprises an evaporator coil, a cold water coil, an aluminum block and a temperature sensing tube which are cast (poured). The refrigerant is evaporated in the evaporator coil, the cold energy is transmitted to the aluminum block, the aluminum block transmits the cold energy to cold water through the cold water coil by heat conduction, so that the cold water is cooled to prepare drinking cold water, the temperature of the drinking cold water can be controlled to be above 0 ℃ and below 5 ℃, and the temperature of outlet water is stable;
B. the installation positions of the temperature sensing pipe, the cold water coil pipe and the refrigerant coil pipe in the aluminum block can not be contacted with each other, the relative position can not be changed, the design lengths of the temperature sensing pipe, the cold water coil pipe and the refrigerant coil pipe need to be accurate, the size of the aluminum block needs to be matched with the lengths of the temperature sensing pipe, the cold water coil pipe and the refrigerant coil pipe, and the best effect of preparing cold water by the cast aluminum evaporator can be exerted.
The technical advantages of the device are that: 1. the occupied space of the device in the coffee machine can be reduced, and the overall utilization space of the coffee machine is improved.
2. The temperature of the drinking cold water can be controlled to be 0-5 ℃, the water outlet temperature is stable, water can be continuously discharged, and the temperature requirement of the coffee machine cold drink product is effectively met.
3. The drinking water enters the cold water coil pipe for cooling, is not in contact with air, and is processed by food-grade stainless steel pipes, so that the sanitary standard is better met.
4. Effectively solves the big problem of providing cold drink products in the field of commercial coffee machines.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an evaporator according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a control circuit diagram of the compressor and the temperature controller of the present invention;
in the figure: 1. top shell, 2, condenser, 3, fan, 4, capillary, 5, compressor, 6, evaporator assembly, 7, temperature controller, 8, base, 9, power plug, 11, temperature sensing pipe, 12, aluminium block, 13, cold water coil pipe, 14, refrigerant coil pipe, 15, heat preservation protecgulum, 16, heat preservation back cover.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses mainly by L type base 8, top shell 1, condenser 2, fan 3, capillary 4, compressor 5, evaporimeter subassembly 6, temperature controller 7, power plug 9 constitute. The bottom surface of the base 8 is provided with a compressor 5, a condenser 2 connected with the compressor through a copper pipe, and an evaporator assembly 6, the fan 3 is arranged behind the condenser 2, and the side surface of the base 8 is provided with a temperature controller 7, a power plug 9, a cold water inlet interface and a cold water outlet interface. The top housing 1 houses the condenser 2, the fan 3, the capillary tube 4, the compressor 5, and the evaporator unit 6, and is integrally connected to the base 8 by screws. The rational arrangement of the above-mentioned components, which represents the advantages of the device in terms of performance and compactness, is combined with the proper advantages of the coffee machine.
Also, the evaporator assembly 6 includes an insulating layer and an evaporator disposed in the cavity thereof. As shown in fig. 3, the heat insulating layer is formed by a mold, and is divided into a heat insulating layer front cover 15 and a heat insulating layer rear cover 16, the evaporator is first installed in a closed cavity formed by the heat insulating layer front and rear covers 15 and 16, and then the heat insulating layer front and rear covers 15 and 16 are connected into a whole by sealant.
As shown in fig. 2 and 3, the evaporator is of a cast aluminum type, and includes an aluminum block 12, and a temperature sensing pipe 11, a cold water coil 13, and a refrigerant coil 14 disposed in the aluminum block 12. Wherein: the cold water coil 13 is a 2-layer pipe and is positioned on the outer layer of the aluminum block 12. The cold water coil 13 is used for water flowing, the water inlet end of the cold water coil is connected with a water pump of the coffee machine through a cold water inlet connector, and the water outlet end of the cold water coil is connected with a cold water outlet connector. The refrigerant coil 14 is located in the inner layer of the aluminum block 12 and is used for carrying refrigerant, and one end of the refrigerant coil is connected with the condenser 2 through a capillary tube 4, and the other end of the refrigerant coil is connected with the air suction pipe of the compressor 5 through a copper pipe. The temperature sensing pipe 11 is located between the cold water coil 13 and the refrigerant coil 14, and is used for installing a temperature sensor. One end of the temperature sensor is inserted into the temperature sensing pipe 11, the other end of the temperature sensor is connected with a storage temperature probe of the temperature controller, the temperature controller is connected with the compressor 7, and the start and stop of the compressor 7 are controlled according to the temperature value sensed by the storage temperature probe, as shown in fig. 4.
Before the evaporator is cast (poured), the positions of the temperature-sensing pipe 11, the cold water coil 13 and the refrigerant coil 14 are fixed in a die, so that the cold water coil 13, the refrigerant coil 14 and the temperature-sensing pipe 11 cannot be contacted with each other, and the gap between the cold water coil 13, the refrigerant coil 14 and the temperature-sensing pipe is ensured to be more than 5 mm. When the evaporator is cast, firstly, the antirust heat-conducting aluminum is heated to be melted, then, the aluminum is injected into a mold and filled fully, so that the formed aluminum block is tightly combined with the temperature sensing pipe 11, the cold water coil pipe 13 and the refrigerant coil pipe 14, and meanwhile, no air bubbles can exist in the aluminum block. In addition, aluminum and dirt cannot enter the cold water coil 13, the refrigerant coil 14 and the temperature sensing pipe 11 in the manufacturing process of the evaporator, and after the processing is finished, the cold water coil 13 and the refrigerant coil 14 need to be cleaned and dried.
When the device is used for making cold drink products, the water pump of the coffee machine enables high-temperature water to enter the cold water coil 13, the water stored in the cold water coil 13 is extruded out firstly, meanwhile, the temperature of the aluminum block 12 can rise along with the entering of the high-temperature water, the water in the cold water coil 13 is cooled, and the water flowing out of the cold water coil 13 is changed into low-temperature water. The temperature sensor detects the temperature of the aluminum block 12 and then inputs the temperature into the temperature controller 7, and when the temperature of the aluminum block 12 rises to the upper limit of the control temperature, the temperature controller 7 controls the compressor 5 to work according to the set control logic; when the temperature of the aluminum block 12 drops to the lower limit of the control temperature, the temperature controller 7 controls the compressor 5 to stop working. Therefore, the cold water from the cold water coil 13 has low and stable water temperature and high water outlet speed, and can well meet the requirement of the commercial coffee machine for making cold drink products.
In conclusion, this device only prepares cold water in the coffee machine, does not possess the function of providing hot water, and main spare part has compressor, condenser, fan, cast aluminium formula evaporimeter etc. and wherein cast aluminium formula evaporimeter's structure is the utility model discloses the key point that the function was realized requires temperature sensing pipe 11, cold water coil 13 and refrigerant coil 14 mounted position in aluminium pig 12 must be accurate during the implementation, and design length must be accurate. Meanwhile, the installation position of the temperature sensor and the structural design of the insulating layer are key points for realizing the functions, so that the temperature requirement of the coffee machine for preparing cold drink products is effectively ensured.
Furthermore, care is taken in the operation: the temperature control point of the temperature controller cannot be set too low; and the water and power supply of the device is provided by the coffee machine.
Claims (7)
1. A small-sized water cooler used on a coffee machine is characterized by comprising an L-shaped base, a compressor arranged on the bottom surface of the base, a condenser and an evaporator assembly which are connected with the compressor through a copper pipe, a fan arranged behind the condenser, a temperature controller, a cold water inlet interface, a cold water outlet interface and a temperature sensor, wherein the temperature controller, the cold water inlet interface and the cold water outlet interface are arranged on the side surface of the base;
the evaporator assembly comprises an insulating layer and an evaporator arranged in a cavity of the insulating layer;
the evaporator is of a cast aluminum type and comprises an aluminum block, and a temperature sensing pipe, a cold water coil pipe and a refrigerant coil pipe which are arranged in the aluminum block;
the cold water coil is positioned on the outer layer of the aluminum block, one end of the cold water coil is connected with a water pump of the coffee machine through a supercooled water inlet interface, and the other end of the cold water coil is connected with a cold water outlet interface;
the refrigerant coil is positioned in the inner layer of the aluminum block, one end of the refrigerant coil is connected with the condenser through a capillary tube, and the other end of the refrigerant coil is connected with the air suction pipe of the compressor through a copper pipe;
the temperature sensing pipe is positioned between the cold water coil pipe and the refrigerant coil pipe, one end of the temperature sensor is inserted into the temperature sensing pipe, the other end of the temperature sensor is connected with the temperature controller, the temperature controller is connected with the compressor, and the start and stop of the compressor are controlled according to the sensed temperature value.
2. A small-sized water chiller as claimed in claim 1, wherein the gap between the cold water coil, the refrigerant coil and the temperature sensing tube is 5mm or more.
3. A compact water chiller as claimed in claim 1 or claim 2 wherein the refrigerant coil is a 2-layer tube.
4. A compact water chiller for a coffee maker as set forth in claim 1 or claim 2 wherein said insulation includes an insulation front cover and an insulation rear cover connected to each other.
5. A small-sized water chiller for coffee makers as set forth in claim 1 or 2, wherein the evaporator unit is fixed to the base by a metal plate.
6. A compact water chiller for a coffee maker as set forth in claim 1 further comprising a top housing surrounding the condenser, fan, capillary tube, compressor and evaporator assembly, the top housing being connected to the base.
7. A compact water chiller for a coffee maker as set forth in claim 1 further comprising a power plug mounted to the side of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020385614.7U CN211716979U (en) | 2020-03-24 | 2020-03-24 | Small-sized water cooler for coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020385614.7U CN211716979U (en) | 2020-03-24 | 2020-03-24 | Small-sized water cooler for coffee machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211716979U true CN211716979U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020385614.7U Active CN211716979U (en) | 2020-03-24 | 2020-03-24 | Small-sized water cooler for coffee machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211716979U (en) |
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2020
- 2020-03-24 CN CN202020385614.7U patent/CN211716979U/en active Active
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