CN215481608U - Cooling device for needle cylinder of circular knitting machine - Google Patents
Cooling device for needle cylinder of circular knitting machine Download PDFInfo
- Publication number
- CN215481608U CN215481608U CN202121564674.6U CN202121564674U CN215481608U CN 215481608 U CN215481608 U CN 215481608U CN 202121564674 U CN202121564674 U CN 202121564674U CN 215481608 U CN215481608 U CN 215481608U
- Authority
- CN
- China
- Prior art keywords
- pipe
- cooling
- oil
- box body
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to a cooling device for a needle cylinder of a circular knitting machine, which is characterized by comprising the following components: a needle cylinder; the first cooling mechanism comprises an oil cooling box, a first cooling unit and a second cooling unit; a second cooling mechanism; wherein the oil-cooling tank and the first cooling unit are respectively adapted to be connected with the interior of the cylinder, and the second cooling unit is respectively adapted to be connected with the oil-cooling tank and the first cooling unit; the second cooling mechanism is adapted to be mounted on an upper portion of the syringe. The utility model can fully and rapidly cool the cooling object, has thorough cooling effect, simple structure and low cost, and is environment-friendly.
Description
Technical Field
The utility model relates to the technical field of circular knitting machine equipment, in particular to a cooling device for a needle cylinder of a circular knitting machine.
Background
In the knitting process of the circular knitting machine, a knitting needle continuously rubs with a needle groove of a needle cylinder, high heat above 90 ℃ is generated, the high heat deforms due to thermal expansion, the knitting needle fills the needle groove, friction is increased, the needle cylinder fails, actions among parts are affected, and a defective finished product is caused due to yarn breakage caused by high heat which cannot be loaded by yarn. Therefore, people must cool the syringe.
Chinese utility model patent CN 202020702249.8 discloses a "cooling device for circular knitting machine cylinder", this patent includes: the cooling mechanism comprises a box body filled with cooling oil, an oil pump, an oil outlet pipe, a heat-conducting cooling pipe, an inlet pipe and an air-cooling copper pipe, and the fan mechanism comprises a fan and a shell; above-mentioned patent is through carrying out circulation oiling to cooling body's inside, again with fan mechanism cooperation to cool off the cylinder.
However, after use, the above-mentioned "CN 202020702249.8" has several problems:
firstly, the heat preservation effect of the oil is good, the oil is difficult to cool in a short time only through the cooling pipe and the radiating fins which are spirally arranged in the needle cylinder, the requirement of quickly cooling the high-speed rotating knitting needles cannot be met, and the cooling effect is low;
secondly, the fan in the fan mechanism blows and can't effectively reach the effect of cooling, and moreover, the fan is installed in the inside upper end of cylinder, and the cylinder operation can produce a large amount of hot gas flows and upwards scatter, and the fan only can blow these hot gas flows to cylinder inside again, has slowed down the hot gas flow and has discharged.
SUMMERY OF THE UTILITY MODEL
In view of the disadvantages of the prior art, an object of the present invention is to provide a cooling device for a cylinder of a circular knitting machine, comprising: a needle cylinder; the first cooling mechanism comprises an oil cooling box, a first cooling unit and a second cooling unit; a second cooling mechanism; wherein the oil-cooling tank and the first cooling unit are respectively adapted to be connected with the interior of the cylinder, and the second cooling unit is respectively adapted to be connected with the oil-cooling tank and the first cooling unit; the second cooling mechanism is adapted to be mounted on an upper portion of the syringe. The utility model can fully and rapidly cool the cooling object, has thorough cooling effect, simple structure and low cost, and is environment-friendly.
The technical scheme of the utility model is realized as follows: a cooling device for a cylinder of a circular knitting machine, comprising: a needle cylinder; the first cooling mechanism comprises an oil cooling box, a first cooling unit and a second cooling unit; a second cooling mechanism; wherein the oil-cooling tank and the first cooling unit are respectively adapted to be connected with the interior of the cylinder, and the second cooling unit is respectively adapted to be connected with the oil-cooling tank and the first cooling unit; the second cooling mechanism is adapted to be mounted on an upper portion of the syringe.
Preferably, the oil cooling tank includes: an oil transfer pump; an oil pumping pipe; an oil outlet pipe; the input end of the oil delivery pump is communicated with the output end of the oil pumping pipe, the input end of the oil pumping pipe is arranged in the oil cooling box close to the bottom, and the input end of the oil outlet pipe is communicated with the output end of the oil well pump.
Preferably, the output end of the oil outlet pipe is communicated with a first condensation pipe, the first condensation pipe is spirally arranged on the side wall in the needle cylinder, and the output end of the first condensation pipe penetrates from the bottom of the needle cylinder to the outside of the needle cylinder and then is communicated with a first oil return pipe.
Preferably, the first cooling unit includes: a first case; a heat dissipation plate; a funnel; distributing an air pipe; the air distribution pipe is transversely arranged on the side wall in the first box body, the side wall of the air distribution pipe is annularly provided with a plurality of air outlets, a second oil return pipe is also arranged on the side wall of the first box body close to the bottom, and the output end of the first oil return pipe is inserted into the top of the first box body and is communicated with the inside of the first box body; the outer wall of the heat dissipation plate and the inner wall of the funnel are provided with steps for dispersing and dissipating heat in an annular mode.
Preferably, the second cooling unit includes: a second case; a second condenser pipe; the second condensation pipe is continuously and curvedly arranged in the second box body, the input end of the second condensation pipe is communicated with the output end of the second oil return pipe, the output end of the second condensation pipe is communicated with a third oil return pipe, the output end of the third oil return pipe penetrates through the second box body and is communicated with the inside of the oil cooling box, and the second condensation pipe is close to the output end of the second condensation pipe and is provided with a check valve for preventing oil from flowing back.
Preferably, the second casing further includes: the input end of the water inlet pipe is communicated with the cold water tank; the output end of the water outlet pipe is communicated with the recovery tank; the water inlet pipe is arranged on the side wall of the second box body close to the bottom of the second box body, and the water outlet pipe is arranged on the side wall of the second box body close to the top of the second box body.
Preferably, the second cooling mechanism includes: a third box body; a cold air pipe; the third box body is internally and vertically provided with a partition board, the partition board divides the third box body into a fan chamber and a refrigerating chamber, an electric fan is arranged on the partition board in the fan chamber, a driving motor of the electric fan is arranged in a partition board interlayer, the input end of the cold air pipe is communicated with the air outlet end of the fan chamber, and the output end of the cold air pipe is arranged on one side of the top in the needle cylinder.
Preferably, the refrigeration chamber sequentially comprises from top to bottom: a first refrigeration cavity; a reaction chamber; a second refrigeration cavity; the reaction cavity is communicated with the first refrigeration cavity and the second refrigeration cavity respectively, the first refrigeration cavity and the second refrigeration cavity are communicated with the fan chamber respectively, an electric stirrer is installed in the reaction cavity, and a filling hole for adding a refrigerant is formed in the side wall of the reaction cavity.
Compared with the prior art, the utility model has the following beneficial effects:
1. in the utility model, the cooling oil in the oil cooling box takes away part of heat in the needle cylinder through the condensing pipe spirally arranged on the side wall in the needle cylinder, and in addition, the first cooling unit and the second cooling unit are also arranged, so that the temperature reduction can be realized for three times after the temperature rise, the cooling and the heat dissipation of the needle cylinder can be fully and efficiently realized, the structure is simple, and the environment-friendly and energy-saving effects are realized.
2. The output end of the cold air pipe is arranged on one side of the inner top of the needle cylinder, heat is quickly discharged to the outside of the needle cylinder, the retention time of the heat in the needle cylinder is shortened, the heat dissipation efficiency is improved, cold air can be blown into the needle cylinder through the arrangement of the refrigeration chamber, the cooling of the needle cylinder is accelerated, the energy consumption is low, and the refrigeration effect is good.
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, and 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 these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of part A of the present invention;
FIG. 3 is a schematic structural diagram of a first cooling unit according to the present invention;
FIG. 4 is a schematic view of the structure of part B of the present invention;
fig. 5 is a schematic structural diagram of a second cooling mechanism according to the present invention.
The examples in the figure are: 1-oil cooling box, 10-needle cylinder, 11-oil outlet pipe, 12-first oil return pipe, 13-first condensing pipe, 14-oil pumping pipe, 15-oil transfer pump, 2-first box, 21-heat dissipation plate, 22-funnel, 23-air distribution pipe, 24-air outlet, 20-step, 31-second oil return pipe, 3-second box, 32-second condensing pipe, 33-third oil return pipe, 30-one-way valve, 34-water inlet pipe, 35-water outlet pipe, 4-third box, 42-cold air pipe, 5-isolation plate, 40-fan chamber, 41-electric fan, 43-driving motor, 51-first refrigerating chamber, 50-reaction chamber, 52-second refrigerating chamber, 53-electric stirrer, 54-fill hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, the present invention discloses a cooling device for a cylinder 10 of a circular knitting machine, characterized by comprising: a needle cylinder 10; the first cooling mechanism comprises an oil cooling box 1, a first cooling unit and a second cooling unit; a second cooling mechanism; wherein the oil-cooling tank 1 and the first cooling unit are respectively adapted to be connected with the inside of the cylinder 10, and the second cooling unit is respectively adapted to be connected with the oil-cooling tank 1 and the first cooling unit; the second cooling mechanism is adapted to be mounted on an upper portion of the cylinder 10.
In the structure, the cooling oil in the oil cooling tank 1 takes away part of the heat in the needle cylinder 10 through the condensing pipe spirally arranged on the side wall in the needle cylinder 10, but the oil temperature after heat absorption is increased and is difficult to cool, and the utility model is also provided with the first cooling unit and the second cooling unit which are used for quickly and effectively cooling the hot oil.
In a specific embodiment of the present invention, the oil cooling tank 1 includes: an oil delivery pump 15; an oil extraction pipe 14; an oil outlet pipe 11; the input end of the oil delivery pump 15 is communicated with the output end of the oil pumping pipe 14, the input end of the oil pumping pipe 14 is arranged in the oil cooling tank 1 close to the bottom, and the input end of the oil outlet pipe 11 is communicated with the output end of the oil well pump.
In the above structure, the oil cooling tank 1 is filled with cooling oil, the bottom of the oil pumping pipe 14 is an input end, the vertical oil outlet pipe 11 of the cooling oil is driven by the oil transfer pump 15, and the oil transfer pump 15 can be installed on the inner side wall or the top of the oil cooling tank 1 and also can be installed outside the oil cooling tank 1.
In the present embodiment, the output end of the oil outlet pipe 11 is connected to a first condensation pipe 13, the first condensation pipe 13 is spirally disposed on the inner sidewall of the syringe 10, and the output end of the first condensation pipe 13 penetrates from the bottom of the syringe 10 to the outside of the syringe 10 and then is connected to the first oil return pipe 12.
In the above structure, the first condensation duct 13 is spirally disposed on the sidewall inside the syringe 10, and the sidewall of the first condensation duct 13 is in close contact with the inner wall of the syringe 10, so as to sufficiently transfer heat from the syringe 10.
In a specific embodiment of the present invention, the first cooling unit includes: a first case 2; a heat dissipation plate 21; a hopper 22; an air distribution pipe 23; a plurality of conical heat dissipation plates 21 are transversely installed in the first box body 2, a funnel 22 for further heat dissipation is installed between two adjacent groups of heat dissipation plates 21, the air distribution pipe 23 is transversely installed on the side wall in the first box body 2, a plurality of air outlets 24 are annularly arranged on the side wall of the air distribution pipe 23, a second oil return pipe 31 is further installed on the side wall of the first box body 2 close to the bottom, and the output end of the first oil return pipe 12 is inserted into the top of the first box body 2 and is communicated with the inside of the first box body 2; steps 20 for dispersing and dissipating heat are annularly arranged on the outer wall of the heat dissipation plate 21 and the inner wall of the funnel 22.
In the structure, the cooling oil with heat is conveyed into the first box body 2 through the first oil return pipe 12, the heat of the heating oil is dissipated backwards through the heat dissipation plate 21 with the annular step 20 and the funnel 22, the heating oil reaching the bottom of the first box body 2 is further dissipated through the air distribution pipe 23 blowing cold air, the heat in the cooling oil can be uniformly and sufficiently reduced, and the primary cooling of the cooling oil is realized.
In a specific embodiment of the present invention, the second cooling unit includes: a second case 3; a second condensation duct 32; wherein, second condenser pipe 32 is established in the second box 3 with continuous crooked, and the input of second condenser pipe 32 with the output intercommunication of second oil return pipe 31, the intercommunication has third oil return pipe 33 on the output of second condenser pipe 32, the output of third oil return pipe 33 pass second box 3 with the inside intercommunication of oil cooling box 1, second condenser pipe 32 is close to and installs the check valve 30 that prevents the oil backward flow on its output.
In the above structure, the primarily cooled cooling oil flows into the second condensation pipe 32 through the second oil return pipe 31, and the second condensation pipe 32 is continuously bent to improve the cooling efficiency and realize the second cooling of the cooling oil; the check valve 30 is provided to prevent the reverse flow of the cooling oil by supplying the cooling oil to the third oil return pipe 33 in one direction.
In a specific embodiment of the present invention, the second casing 3 further includes: an inlet pipe 34, the input end of which is communicated with the cold water tank; the output end of the water outlet pipe 35 is communicated with the recovery box; wherein, the water inlet pipe 34 is installed on the side wall of the second box 3 near the bottom thereof, and the water outlet pipe 35 is installed on the side wall of the second box 3 near the top thereof.
In the above-mentioned structure, fill with cold water in the second box 3 when letting in cold water in the inlet tube 34 for cooling oil cooling in the second condenser pipe 32 realizes the third time cooling to the cooling oil, and after filling with cold water in the second box 3, water arranges the collection box in through outlet pipe 35, and the collection box realizes water cyclic utilization, resources are saved, green to the cooling of the water heat dissipation of retrieving in supplying with the cold water tank once more.
In a specific embodiment of the present invention, the second cooling mechanism includes: a third casing 4; a cold air duct 42; the third box body 4 is vertically provided with a partition board 5, the partition board divides the box body into a fan chamber 40 and a refrigeration chamber, a partition board in the fan chamber 40 is provided with an electric fan 41, a driving motor 43 of the electric fan 41 is arranged in a partition board interlayer, the input end of the cold air pipe 42 is communicated with the air outlet end of the fan chamber 40, and the output end of the cold air pipe 42 is arranged on one side of the top in the needle cylinder 10.
In the structure, the cold air pipe 42 is arranged, the output end of the cold air pipe is arranged on one side of the top in the needle cylinder 10, an opening is reserved on the other side of the top of the needle cylinder 10, after air is blown into the needle cylinder 10 through the cold air pipe 42, the air flows back through the opening reserved on the other side of the top of the needle cylinder 10, heat is rapidly discharged to the outside of the needle cylinder 10, the retention time of the heat in the needle cylinder 10 is shortened, and the heat dissipation efficiency is improved.
In a specific embodiment of the present invention, the refrigeration chamber sequentially comprises, from top to bottom: a first refrigeration chamber 51; a reaction chamber 50; a second refrigeration chamber 52; the reaction cavity 50 is respectively communicated with a first refrigeration cavity 51 and a second refrigeration cavity 52, the first refrigeration cavity 51 and the second refrigeration cavity 52 are respectively communicated with the fan chamber 40, an electric stirrer 53 is installed in the reaction cavity 50, and a filling hole 54 for adding a refrigerant is formed in the side wall of the reaction cavity 50.
In the structure, the refrigerant is added into the reaction cavity 50 through the filling hole 54, the reaction is accelerated through the electric stirrer 53, the cold air flows to the upper refrigeration cavity and the lower refrigeration cavity respectively, and then the cold air is blown into the needle cylinder 10 through the cold air pipe 42 through the electric fan 41 in the fan chamber 40, so that the temperature reduction in the needle cylinder 10 is accelerated, the energy consumption is low, and the refrigeration effect is good.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, the cooling oil in the oil cooling box takes away part of heat in the needle cylinder through the condensing pipe spirally arranged on the side wall in the needle cylinder, and in addition, the first cooling unit and the second cooling unit are also arranged, so that the temperature reduction can be realized for three times after the temperature rise, the cooling and the heat dissipation of the needle cylinder can be fully and efficiently realized, the structure is simple, and the environment-friendly and energy-saving effects are realized.
2. The output end of the cold air pipe is arranged on one side of the inner top of the needle cylinder, heat is quickly discharged to the outside of the needle cylinder, the retention time of the heat in the needle cylinder is shortened, the heat dissipation efficiency is improved, cold air can be blown into the needle cylinder through the arrangement of the refrigeration chamber, the cooling of the needle cylinder is accelerated, the energy consumption is low, and the refrigeration effect is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A cooling device for a cylinder of a circular knitting machine, comprising:
a needle cylinder;
the first cooling mechanism comprises an oil cooling box, a first cooling unit and a second cooling unit;
a second cooling mechanism;
wherein the oil-cooling tank and the first cooling unit are respectively adapted to be connected with the interior of the cylinder, and the second cooling unit is respectively adapted to be connected with the oil-cooling tank and the first cooling unit; the second cooling mechanism is adapted to be mounted on an upper portion of the syringe.
2. A cooling device for a needle cylinder of a knitting circular knitting machine according to claim 1, characterized in that said oil cooling tank comprises:
an oil transfer pump;
an oil pumping pipe;
an oil outlet pipe;
the input end of the oil delivery pump is communicated with the output end of the oil pumping pipe, the input end of the oil pumping pipe is arranged in the oil cooling box close to the bottom, and the input end of the oil outlet pipe is communicated with the output end of the oil well pump.
3. A cooling device for a cylinder of a knitting circular knitting machine according to claim 2,
the output end of the oil outlet pipe is communicated with a first condensation pipe, the first condensation pipe is spirally arranged on the side wall in the needle cylinder, and the output end of the first condensation pipe penetrates through the bottom of the needle cylinder to the outside of the needle cylinder and then is communicated with a first oil return pipe.
4. A cooling device for a needle cylinder of a knitting circular knitting machine according to claim 3, characterized in that said first cooling unit comprises:
a first case;
a heat dissipation plate;
a funnel;
distributing an air pipe;
the air distribution pipe is transversely arranged on the side wall in the first box body, the side wall of the air distribution pipe is annularly provided with a plurality of air outlets, a second oil return pipe is also arranged on the side wall of the first box body close to the bottom, and the output end of the first oil return pipe is inserted into the top of the first box body and is communicated with the inside of the first box body; the outer wall of the heat dissipation plate is provided with a ring and is used for dispersing and dissipating heat.
5. A cooling device for a needle cylinder of a knitting circular knitting machine according to claim 4, characterized in that said second cooling unit comprises:
a second case;
a second condenser pipe;
the second condensation pipe is continuously and curvedly arranged in the second box body, the input end of the second condensation pipe is communicated with the output end of the second oil return pipe, the output end of the second condensation pipe is communicated with a third oil return pipe, the output end of the third oil return pipe penetrates through the second box body and is communicated with the inside of the oil cooling box, and the second condensation pipe is close to the output end of the second condensation pipe and is provided with a check valve for preventing oil from flowing back.
6. A cooling device for a needle cylinder of a knitting circular knitting machine according to claim 5, characterized in that said second box body further comprises:
the input end of the water inlet pipe is communicated with the cold water tank;
the output end of the water outlet pipe is communicated with the recovery tank;
the water inlet pipe is arranged on the side wall of the second box body close to the bottom of the second box body, and the water outlet pipe is arranged on the side wall of the second box body close to the top of the second box body.
7. A cooling device for a needle cylinder of a knitting circular knitting machine according to claim 1, characterized in that said second cooling mechanism comprises:
a third box body;
a cold air pipe;
the third box body is internally and vertically provided with a partition board, the partition board divides the third box body into a fan chamber and a refrigerating chamber, an electric fan is arranged on the partition board in the fan chamber, a driving motor of the electric fan is arranged in a partition board interlayer, the input end of the cold air pipe is communicated with the air outlet end of the fan chamber, and the output end of the cold air pipe is arranged on one side of the top in the needle cylinder.
8. The cooling device for a cylinder of a knitting circular knitting machine according to claim 7, characterized in that said refrigeration compartment comprises, in sequence from top to bottom:
a first refrigeration cavity;
a reaction chamber;
a second refrigeration cavity;
the reaction cavity is communicated with the first refrigeration cavity and the second refrigeration cavity respectively, the first refrigeration cavity and the second refrigeration cavity are communicated with the fan chamber respectively, an electric stirrer is installed in the reaction cavity, and a filling hole for adding a refrigerant is formed in the side wall of the reaction cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564674.6U CN215481608U (en) | 2021-07-12 | 2021-07-12 | Cooling device for needle cylinder of circular knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564674.6U CN215481608U (en) | 2021-07-12 | 2021-07-12 | Cooling device for needle cylinder of circular knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215481608U true CN215481608U (en) | 2022-01-11 |
Family
ID=79725707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121564674.6U Active CN215481608U (en) | 2021-07-12 | 2021-07-12 | Cooling device for needle cylinder of circular knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215481608U (en) |
-
2021
- 2021-07-12 CN CN202121564674.6U patent/CN215481608U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209593157U (en) | A kind of oil-cooled motor shell | |
| CN215481608U (en) | Cooling device for needle cylinder of circular knitting machine | |
| JPWO2014103320A1 (en) | Hermetic compressor and refrigeration apparatus including the same | |
| CN113993350A (en) | High-efficient radiator with air circulation mechanism | |
| CN219497905U (en) | Heat radiation structure of battery of energy storage cabinet | |
| CN110784069A (en) | Motor stator core cooling structure based on gas-liquid phase change, stator core, motor and motor cooling method | |
| CN105241176A (en) | Efficient cooling tower | |
| CN1769823A (en) | Refrigerator | |
| CN208349653U (en) | A kind of refrigeration equipment | |
| CN210425716U (en) | Circulating cooling equipment | |
| CN220981649U (en) | Direct cooling refrigerator | |
| CN219679067U (en) | Cooling structure for inversion intermediate frequency power supply | |
| CN213185734U (en) | Special cellular-type wheel hub PMSM of steel band elevator | |
| CN216048616U (en) | Refrigeration and air circulation system of single-compartment refrigerator | |
| CN221020138U (en) | Engraving and milling machine | |
| CN219800102U (en) | Heat radiation structure of data storage server | |
| CN219576413U (en) | Heat dissipation power equipment | |
| CN219655022U (en) | Hydraulic oil tank heat abstractor | |
| CN217718627U (en) | Water cooler | |
| CN210272003U (en) | External radiator for transformer | |
| CN221096783U (en) | High-performance gas compressor | |
| CN212177516U (en) | Heat dissipation device of shield pump | |
| CN217882502U (en) | Ventilation and heat dissipation structure for power supply cabinet | |
| CN116520964B (en) | Liquid cooling row and liquid cooling heat abstractor of two liquid pumps | |
| CN218376804U (en) | Heat dissipation device for variable-frequency air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |