CN212414385U - Seafood machine with adjustable main throttling module - Google Patents
Seafood machine with adjustable main throttling module Download PDFInfo
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- CN212414385U CN212414385U CN202020522850.9U CN202020522850U CN212414385U CN 212414385 U CN212414385 U CN 212414385U CN 202020522850 U CN202020522850 U CN 202020522850U CN 212414385 U CN212414385 U CN 212414385U
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- module
- heat exchanger
- throttling
- way valve
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- 235000014102 seafood Nutrition 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 claims description 17
- 210000000476 body water Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 239000003507 refrigerant Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model provides a seafood machine with an adjustable main throttling module, which comprises a four-way valve, a compressor module, a first heat exchanger, an adjustable main throttling module, a turning throttling module and a second heat exchanger; a first connecting port of the four-way valve is connected with the output end of the compressor module, a second connecting port of the four-way valve is connected with the first end of the first heat exchanger, a third connecting port of the four-way valve is connected with the input end of the compressor module, and a fourth connecting port of the four-way valve is connected with the second end of the second heat exchanger; the direction-changing throttling module comprises an auxiliary throttling element and a one-way valve which are arranged in parallel; the second end of the first heat exchanger is connected with the first end of the second heat exchanger after sequentially passing through the adjustable main throttling module and the direction-changing throttling module. This seafood machine can make refrigeration cycle or heat exchange efficiency in the circulation adjustable through setting up adjustable main throttle module to can choose suitable heat exchange efficiency for use according to actual conditions, with the efficiency that improves the seafood machine, have good practicality.
Description
Technical Field
The utility model relates to the electrical apparatus field, concretely relates to seafood machine with adjustable main throttle module.
Background
The seafood machine is a device for adjusting the temperature of water in a seafood cultivation pool, and fig. 1 shows a schematic view of a connection structure of parts of a conventional seafood machine. Through the control of the four-way valve, the refrigerant output end of the compressor can carry out diversion output, thereby realizing the refrigerating function and the heating function of the second heat exchanger on the seafood pool water. Since the throttle elements (the main throttle element, the auxiliary throttle element, and the check valve) of a fixed structure are employed, the heat exchange efficiency of the refrigerant in both the refrigeration cycle and the heating cycle is fixed. The seafood machine with the structure has the advantages that the temperature difference between the real-time temperature of the seafood pond water and the target adjusting temperature is not constant, but the heat exchange efficiency of the seafood machine with the existing structure is constant, so that the time required for reaching the target adjusting temperature is longer when the temperature difference between the real-time temperature of the seafood pond water and the target adjusting temperature is larger, the efficiency is lower, the temperature difference between the real-time temperature of the seafood pond water and the target adjusting temperature is smaller, the over-adjusting condition is easy to occur, the temperature of the seafood pond water fluctuates in the upper and lower ranges of the target adjusting temperature, the four-way valve is frequently switched, and the service life of the four-way valve is shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the heat exchange efficiency of current seafood machine is fixed, the utility model provides a seafood machine with adjustable main throttle module, this seafood machine can make refrigeration cycle or heat the heat exchange efficiency in the cycle adjustable through setting up adjustable main throttle module to can choose suitable heat exchange efficiency for use according to actual conditions, with the efficiency that improves seafood machine, have good practicality.
Correspondingly, the utility model provides a seafood machine with an adjustable main throttling module, which comprises a four-way valve, a compressor module, a first heat exchanger, an adjustable main throttling module, a turning throttling module and a second heat exchanger;
the four-way valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port, the first connecting port is an input port, the third connecting port is an output port, and the second connecting port and the fourth connecting port are variable connecting ports; the first heat exchanger has a first end and a second end; the second heat exchanger has a first end and a second end;
a first connecting port of the four-way valve is connected with the output end of the compressor module, a second connecting port of the four-way valve is connected with the first end of the first heat exchanger, a third connecting port of the four-way valve is connected with the input end of the compressor module, and a fourth connecting port of the four-way valve is connected with the second end of the second heat exchanger;
the direction-changing throttling module comprises an auxiliary throttling element and a one-way valve which are arranged in parallel;
the second end of the first heat exchanger sequentially passes through the adjustable main throttling module and the direction-changing throttling module and then is connected with the first end of the second heat exchanger, and the stopping end of the one-way valve faces the second heat exchanger.
In an alternative embodiment, the fourth connection port of the four-way valve is connected with the second end of the second heat exchanger based on a low-pressure valve;
and the first end of the second heat exchanger is connected with the direction-changing throttling module based on a high-pressure valve.
In an alternative embodiment, the adjustable primary throttle module is connected to the second end of the first heat exchanger based on a first dry filter.
In an alternative embodiment, the direction-changing throttle module is connected with the first end of the second heat exchanger based on a second dry filter.
In an optional embodiment, the compressor module comprises a compressor and a reservoir which are connected in sequence;
the liquid storage device is connected with a third interface of the four-way valve, and the compressor is connected with a first interface of the four-way valve.
In an alternative embodiment, the second heat exchanger is disposed within a tank;
the tank body is provided with a tank body water inlet hole and a tank body water outlet hole.
In an optional implementation mode, a temperature sensor is arranged on the water outlet hole of the tank body.
In an optional embodiment, the adjustable main throttle module is an expansion valve.
In an optional embodiment, the adjustable main throttling module comprises more than two groups of main throttling branches arranged in parallel;
any one of the more than two groups of main throttling branches comprises an electromagnetic valve and a throttling element which are connected in sequence;
the throttling effect of different throttling elements in more than two groups of main throttling branches is different.
In an alternative embodiment, the throttling element is a capillary tube.
The adjustable main throttling module is arranged in the seafood machine, so that the heat exchange efficiency in a refrigeration cycle or a heating cycle can be adjusted, the proper heat exchange efficiency can be selected according to actual conditions, the efficiency of the seafood machine is improved, and the seafood machine has good practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 illustrates a schematic view of a prior art seafood machine connection configuration;
fig. 2 shows a schematic diagram of a three-dimensional explosion structure of a seafood machine according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure of the seafood machine according to the embodiment of the present invention;
fig. 4 shows a schematic structural diagram of an adjustable main throttle module according to an embodiment of the present invention;
FIG. 5 is a schematic view of the operation principle of the seafood machine in the cooling mode;
FIG. 6 shows a schematic view of the operation principle of the seafood machine in the heating mode.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Fig. 2 shows a schematic diagram of a three-dimensional explosion structure of a seafood machine in an embodiment of the present invention.
The seafood machine provided by the embodiment of the utility model comprises a shell, fan blades 203, a motor 213, a first heat exchanger 207, a second heat exchanger 214, a compressor module 217, a four-way valve and a corresponding pipeline connecting piece; in the attached drawings, fig. 2 shows a four-way valve and a corresponding pipe connection, which should be understood by referring to the seafood machine cooling schematic diagram of the embodiment shown in fig. 2 and the seafood machine heating schematic diagram of the embodiment shown in fig. 3.
Specifically, the housing of the seafood machine of the embodiment of the present invention includes a front panel 201, a bottom plate 209, a base 210, a top plate 208, a first side plate 205 and a second side plate 206. Specifically, the base 210 is used for supporting the entire seafood machine and for connecting and fixing the seafood machine from the outside; the bottom plate 209 is arranged on the base 210; the first side plate 205 and the second side plate 206 are respectively arranged on two sides of the bottom plate 209; the top plate 208 is disposed above the first side plate 205 and the second side plate 206; the front panel 201 is disposed in front of the bottom plate 209, the first side plate 205, and the second side plate 206. Specifically, the front panel 205 is provided with an air guiding cover 202, and a protection net 204 is arranged on one side of an air outlet of the air guiding cover 202; the front panel 201 is also provided with a display control module 211.
Specifically, in order to enhance the structural strength of the housing, a motor mount 212 is provided between the top plate 208 and the bottom plate 209. The upper end and the lower end of the motor base 212 are respectively fixed on the top plate 208 and the bottom plate 209, so that the structural rigidity of the shell can be enhanced, the motor 213 can be installed and the fixing effect on the motor 213 can be enhanced, the vibration of the motor 213 can be reduced, and the noise generated by the motor 213 can be reduced.
In the embodiment of the present invention, the first heat exchanger 207 is generally a condenser, the first heat exchanger 207 is designed to be an L-shaped structure, one surface of the first heat exchanger 207 is opposite to the first side plate 205, and the first side plate 205 is correspondingly configured to be a grid structure, so as to facilitate heat exchange of the first heat exchanger; the other side of the first heat exchanger 207 serves as a back plate of the housing of the seafood machine. Since the back of the seafood machine is an emergency surface, the first heat exchanger 207 is directly exposed to the external environment, so that the heat exchange efficiency can be enhanced.
Correspondingly, the second heat exchanger 214 can be used in combination with a tank evaporator, the seafood pool water flows into the second heat exchanger 214 through the water inlet 215 on the second side plate 206, and flows out from the water outlet 216 on the second side plate 206 after being subjected to heat exchange by the second heat exchanger 214, and the seafood pool water continuously exchanges heat with the evaporator (specifically, a titanium tube in the evaporator) so as to reach the set temperature of the seafood pool water.
The compressor module 217 comprises a compressor, a liquid storage tank and other parts, and is fixed in the shell; in a specific implementation, for example, for a compressor or other high-height component, the upper end and the lower end of the component can be fixed on the bottom plate 209 and the top plate 208 simultaneously, so as to enhance the shock resistance.
The motor 213 is arranged on the motor base 212, and the fan blades 203 are fixed on the output shaft of the motor 213; the air outlet surface of the fan blade 203 is opposite to the air guiding cover 202. When the fan blades 203 are driven by the motor 213 to rotate, the internal gas of the seafood machine is sent out from the wind guide cover to the outside of the seafood machine; the internal gas of the seafood machine is supplemented by the airflow flowing through the first heat exchanger 207, thereby realizing the heat exchange of the first heat exchanger 207.
Specifically, the fixing mode of the internal parts of the seafood machine can be a direct fixing mode and can also be fixed through corresponding connecting pieces. As in the present embodiment, the bottom of the periphery of the compressor is provided with a connecting piece, the bottom plate 209 is provided with a connected piece sleeved with a damping rubber sleeve at a mounting position corresponding to the connecting piece of the compressor, and the compressor can be fixed on the bottom plate 209 based on the matching of the connecting piece and the connected piece; the prior art can be referred to in relation to the fixed mode of other spare parts, and the embodiment of the utility model discloses does not explain one by one.
Fig. 3 shows a schematic view of a connection structure of the seafood machine according to the embodiment of the present invention. Specifically, the components of the seafood machine with the adjustable main throttling module participating in the refrigerant cycle comprise a four-way valve 220, a compressor module, a first heat exchanger 207, an adjustable main throttling module 226, a direction-changing throttling module and a second heat exchanger 214;
the four-way valve 220 has a first connection port (upper end in the figure), a second connection port (right end in the figure), a third connection port (lower end in the figure) and a fourth connection port (left end in the figure), the first connection port is an input port, the third connection port is an output port, and the second connection port and the fourth connection port are variable connection ports; the first heat exchanger 207 has a first end and a second end; the second heat exchanger 214 has a first end and a second end.
A first connection port of the four-way valve 220 is connected to an output end of the compressor module, a second connection port of the four-way valve 220 is connected to a first end of the first heat exchanger 207, a third connection port of the four-way valve 220 is connected to an input end of the compressor module, and a fourth connection port of the four-way valve 220 is connected to a second end of the second heat exchanger 214.
The direction-changing throttling module comprises an auxiliary throttling element 224 and a one-way valve 225 which are arranged in parallel.
The second end of the first heat exchanger 207 passes through the adjustable main throttle module 226 and the direction-changing throttle module in sequence and then is connected with the first end of the second heat exchanger 214, and the terminating end of the check valve 225 faces the second heat exchanger 214.
Specifically, in order to enhance the control of the inlet air pressure when the refrigerant enters the second heat exchanger, the fourth connection port of the four-way valve 220 is connected to the second end of the second heat exchanger 214 via a low pressure valve 228; a first end of the second heat exchanger 214 is connected to the direction change throttle module based on a high pressure valve 229.
Specifically, to ensure the throttling effect and prevent the throttling element from being damaged, the adjustable main throttling module 226 is connected with the second end of the first heat exchanger 207 based on a first dry filter 227.
Correspondingly, the direction-changing throttling module is connected with the first end of the second heat exchanger 214 based on a second dry filter 223.
Specifically, the compressor module comprises a compressor 222 and a liquid storage 221 which are connected in sequence; the reservoir 221 is connected to a third interface of the four-way valve, and the compressor 222 is connected to a first interface of the four-way valve 220.
Specifically, the second heat exchanger 214 is disposed in a tank; the tank body is provided with a tank body water inlet hole and a tank body water outlet hole, and the seafood pool water realizes heat exchange with the second heat exchanger 214 in the tank body. There are currently integrated products on the market that use titanium tubes as the second heat exchanger 214.
Specifically, in order to monitor the water temperature of the seafood pool, a temperature sensor is arranged on a water outlet hole of the tank body.
Optionally, the adjustable main throttle module is an expansion valve.
Optionally, fig. 4 is a schematic structural diagram of an adjustable main throttling module according to an embodiment of the present invention. The adjustable main throttling module comprises more than two groups of main throttling branches 240 which are arranged in parallel; any one main throttling branch 240 of the more than two groups of main throttling branches 240 comprises an electromagnetic valve 242 and a throttling element 241 which are connected in sequence; the throttling effect of the different throttling elements 241 in the two or more groups of main throttling branches 240 is different. In one embodiment, different main throttle branches 240 are connected to the circuit by computer or manual control to achieve different heat exchange rates.
Optionally, the throttling element is a capillary 241, and the capillary 241 on different branches may adopt a setting mode with the same specification but different lengths, so as to flexibly control the throttling effect.
Specifically, the seafood machine can work in a refrigerating mode or a heating mode, and the two working modes are switched by taking the outflow temperature of the seafood pool water as a reference and the magnitude relation with the set temperature. Therefore, in the concrete implementation, the corresponding control logic can be selected according to the feedback temperature of the temperature sensor through simple logic processing, different branches are controlled to be connected into the refrigerating circuit or the heating circuit, the efficiency of the seafood machine is improved, and the seafood machine has good practicability.
FIG. 5 is a schematic diagram of the operation principle of the seafood machine in the cooling mode.
In the cooling mode, the four-way valve 220 is switched to the state shown in fig. 3, the first connection port of the four-way valve 220 is communicated with the second connection port of the four-way valve 220, and the fourth connection port of the four-way valve 220 is communicated with the third connection port of the four-way valve 220. The compressor 222 sucks the refrigerator gas (low temperature and low pressure) into the cylinder through the liquid storage tank 221; the refrigerant gas is compressed by the compressor 222 and discharged to the first heat exchanger 207; in the first heat exchanger 207, the refrigerant gas (high temperature and high pressure) exchanges heat with air (generally, the air flow rate through the condenser is increased by rotating the fan blades by the motor) at a lower temperature, and the refrigerant gas (high temperature and high pressure) is condensed into a refrigerant liquid (normal temperature and high pressure); then, after passing through the first dry filter 227, the refrigerant liquid (at normal temperature and high pressure) is cooled and depressurized by the adjustable main throttling module to become low-temperature and low-pressure refrigerant liquid; after passing through the one-way valve 225 and the second drying filter 223, the low-temperature and low-pressure refrigerant liquid enters the second heat exchanger 214 from the high-pressure valve 229, is vaporized into refrigerant gas (low-temperature and low-pressure) after absorbing the heat of the seafood pool water in the second heat exchanger 214, is discharged from the low-pressure valve 228 and flows back to the compressor liquid storage tank 221 through the four-way valve 220, and a primary refrigeration cycle is formed.
FIG. 6 shows a schematic view of the operation principle of the seafood machine in the heating mode.
In the heating mode, the four-way valve 220 is switched to the state shown in fig. 4, the first connection port of the four-way valve 220 communicates with the fourth connection port of the four-way valve 220, and the second connection port of the four-way valve 220 communicates with the third connection port (lower end in the figure) of the four-way valve 220. The compressor 222 sucks refrigerant gas (low temperature and low pressure) into the cylinder through the liquid storage tank 221; after the refrigerant gas (low temperature and low pressure) is compressed by the compressor 222, the refrigerant gas is sent into the second heat exchanger 214 through the low pressure valve 228, the refrigerant gas (low temperature and low pressure) releases heat after exchanging heat with the seafood pool water in the second heat exchanger 214, and the refrigerant gas is converted into refrigerant liquid (normal temperature and high pressure) and then flows out of the high pressure valve 229; after passing through the second dry filter 223, the refrigerant liquid (at normal temperature and high pressure) is converted into low-temperature low-pressure refrigerator liquid through the auxiliary throttling element (in this embodiment, the auxiliary capillary tube 224) and the adjustable main throttling module, and then the low-temperature low-pressure refrigerator liquid is sent into the first heat exchanger 207 after passing through the first dry filter, the first heat exchanger 207 converts the low-temperature low-pressure refrigerator liquid into refrigerant gas (at low temperature and low pressure) through heat exchange, and the refrigerant gas (at low temperature and low pressure) flows back to the compressor liquid storage tank 221 through the four-way valve 220, so that a primary heating.
To sum up, the embodiment of the utility model provides a this seafood machine can make refrigeration cycle or heat the heat exchange efficiency in the circulation adjustable through setting up adjustable main throttle module to can choose suitable heat exchange efficiency for use according to actual conditions, with the efficiency that improves the seafood machine, have good practicality.
The seafood machine with the adjustable main throttling module provided by the embodiment of the invention is described in detail above, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. The seafood machine with the adjustable main throttling module is characterized by comprising a four-way valve, a compressor module, a first heat exchanger, an adjustable main throttling module, a turning throttling module and a second heat exchanger;
the four-way valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port, the first connecting port is an input port, the third connecting port is an output port, and the second connecting port and the fourth connecting port are variable connecting ports; the first heat exchanger has a first end and a second end; the second heat exchanger has a first end and a second end;
a first connecting port of the four-way valve is connected with the output end of the compressor module, a second connecting port of the four-way valve is connected with the first end of the first heat exchanger, a third connecting port of the four-way valve is connected with the input end of the compressor module, and a fourth connecting port of the four-way valve is connected with the second end of the second heat exchanger;
the direction-changing throttling module comprises an auxiliary throttling element and a one-way valve which are arranged in parallel;
the second end of the first heat exchanger sequentially passes through the adjustable main throttling module and the direction-changing throttling module and then is connected with the first end of the second heat exchanger, and the stopping end of the one-way valve faces the second heat exchanger.
2. The seafood machine with an adjustable primary throttle module of claim 1 wherein a fourth connection port of the four-way valve is connected to a second end of the second heat exchanger based on a low pressure valve;
and the first end of the second heat exchanger is connected with the direction-changing throttling module based on a high-pressure valve.
3. The seafood machine with adjustable primary throttle module of claim 1 wherein the adjustable primary throttle module is connected to the second end of the first heat exchanger based on a first dry filter.
4. The seafood machine with adjustable primary throttle module of claim 1 wherein the diversion throttle module is connected to the first end of the second heat exchanger based on a second dry filter.
5. The seafood machine with an adjustable primary throttle module of claim 1 wherein the compressor module comprises a compressor and a reservoir connected in series;
the liquid storage device is connected with a third interface of the four-way valve, and the compressor is connected with a first interface of the four-way valve.
6. The seafood machine with adjustable primary throttle module of claim 1 wherein said second heat exchanger is disposed within a tank;
the tank body is provided with a tank body water inlet hole and a tank body water outlet hole.
7. The seafood machine with an adjustable primary throttle module of claim 6 wherein a temperature sensor is located on the outlet opening of the tank.
8. The seafood machine with adjustable primary throttle module of any of claims 1 to 7 wherein the adjustable primary throttle module is an expansion valve.
9. The seafood machine with adjustable primary throttling module of any of claims 1 to 7, wherein the adjustable primary throttling module comprises more than two sets of primary throttling branches arranged in parallel;
any one of the more than two groups of main throttling branches comprises an electromagnetic valve and a throttling element which are connected in sequence;
the throttling effect of different throttling elements in more than two groups of main throttling branches is different.
10. The seafood machine with an adjustable primary throttle module of claim 9 wherein the throttling element is a capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020522850.9U CN212414385U (en) | 2020-04-10 | 2020-04-10 | Seafood machine with adjustable main throttling module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020522850.9U CN212414385U (en) | 2020-04-10 | 2020-04-10 | Seafood machine with adjustable main throttling module |
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| Publication Number | Publication Date |
|---|---|
| CN212414385U true CN212414385U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020522850.9U Active CN212414385U (en) | 2020-04-10 | 2020-04-10 | Seafood machine with adjustable main throttling module |
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| CN (1) | CN212414385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467841A (en) * | 2022-01-20 | 2022-05-13 | 佛山市六融制冷科技有限公司 | Seafood machine system, operation method and seafood machine |
-
2020
- 2020-04-10 CN CN202020522850.9U patent/CN212414385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467841A (en) * | 2022-01-20 | 2022-05-13 | 佛山市六融制冷科技有限公司 | Seafood machine system, operation method and seafood machine |
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Address after: 266000 Room 302, No.3 workshop, no.506 qianwangang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Qingdao haimingbo intelligent cold chain Co.,Ltd. Address before: Room 302, No.3 workshop, no.506 qianwangang Road, Huangdao District, Qingdao City, Shandong Province 266599 Patentee before: Qingdao wanxinyuan Central Air Conditioning Co.,Ltd. |
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Effective date of registration: 20231108 Address after: Room 103, Building 3, No. 506 Qianwangang Road, Huangdao District, Qingdao City, Shandong Province, 266000 Patentee after: Qingdao Haimingbo Electrical Appliances Co.,Ltd. Address before: 266000 Room 302, No.3 workshop, no.506 qianwangang Road, Huangdao District, Qingdao City, Shandong Province Patentee before: Qingdao haimingbo intelligent cold chain Co.,Ltd. |