CN111780463A - Air conditioner refrigerant filling device - Google Patents
Air conditioner refrigerant filling device Download PDFInfo
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- CN111780463A CN111780463A CN202010559510.8A CN202010559510A CN111780463A CN 111780463 A CN111780463 A CN 111780463A CN 202010559510 A CN202010559510 A CN 202010559510A CN 111780463 A CN111780463 A CN 111780463A
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- wall
- air conditioner
- gun head
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
One or more embodiments of the present disclosure provide an air conditioner refrigerant filling device, including a refrigerant tank, a booster pump, a filling machine, a filling gun head, a quick coupling, a coupling assembly, and a wireless control assembly, where the wireless control assembly includes a control valve, a wireless signal transmitting module, and a wireless signal receiving module; one end of the joint component is fixedly connected with the filling gun head, and the other end of the joint component is sleeved and installed with the quick joint. The joint assembly comprises a first interface module and a second interface module, the first interface module is arranged to clamp the quick joint, and the quick joint is tightly abutted with the filling gun head, so that the quick joint is stably abutted with the filling gun head, and the air conditioner refrigerant leakage is avoided to cause pollution.
Description
Technical Field
One or more embodiments of this description relate to air conditioner production facility technical field, especially relate to an air conditioner refrigerant filling device.
Background
In the production process of the air conditioner, refrigerant filling is a key process, and the refrigerant (for example, Freon is a common refrigerant) is 'blood' of the air conditioner and is used for conveying energy; the air conditioner performs both cooling and heating by changing the state of the refrigerant in the system. Before the refrigerant filling process, the quick connector installation and the vacuumizing process are completed, and then the refrigerant filling is carried out; the specific process of the procedure is that the refrigerant is released from the refrigerant tank and then enters the booster pump, then the filling gun head of the filling machine is in butt joint with the quick connector, and then the refrigerant is quickly injected into the air conditioner.
The inventors have found that the following drawbacks exist in the operation of the refrigerant charging process: the filling gun head is connected with a filling machine through a hose, when an operator fills the refrigerant, only the gun mouth of the filling gun head is abutted and attached to the interface of the quick connector, and then the switch is pressed to fill; between filling rifle head and quick-operation joint, often because of contact unstable lead to the refrigerant that has the toxicity to escape from the interface gap, after the operation workman inhales a certain dose of refrigerant, cause the injury to healthy.
Disclosure of Invention
In view of this, an object of one or more embodiments of the present disclosure is to provide a device capable of stably connecting a nozzle of a filling gun head and a port of a quick coupling, so as to solve the problem that a toxic refrigerant often escapes from a gap between the ports due to unstable contact between the filling gun head and the quick coupling, and an operator inhales a certain amount of refrigerant, thereby causing harm to health.
Based on the above purpose, one or more embodiments of the present specification provide an air conditioner refrigerant filling device, including a refrigerant tank, a booster pump, a filling machine, a filling gun head connected to a hose of the filling machine, and a quick coupling sleeved on an air conditioner pipeline, which are sequentially communicated, and further including a coupling assembly connected to the filling gun head and a wireless control assembly, where the wireless control assembly includes a control valve disposed on the filling machine, a wireless signal transmitting module fixedly connected to the coupling assembly, and a wireless signal receiving module electrically connected to the control valve; one end of the joint component is fixedly connected with the filling gun head, and the other end of the joint component is sleeved with the quick joint.
Optionally, the joint assembly includes a first interface module and a second interface module; the first interface module comprises a first shell, a first channel with an isosceles trapezoid cross section is arranged at the central axis of the first channel, the first channel penetrates through two ends of the shell, two groups of sliding grooves are symmetrically formed in the inner wall of the first channel along the length direction of the outline of the first channel, the sliding grooves are long-strip-shaped, a through hole is vertically formed in the outer wall of the first shell, the through hole is communicated with the inner bottom wall of the sliding grooves, two groups of clamping blocks with right trapezoid cross sections are symmetrically arranged in the first channel, the two groups of clamping blocks are respectively arranged on two opposite side walls in the first channel, are attached to the side walls and can slide relative to the side walls, two groups of sliding rails are fixedly arranged on one side wall facing the sliding grooves, the two groups of sliding rails are symmetrically arranged in the sliding grooves and drive the clamping blocks to slide back and forth along the track direction of the sliding grooves, and tooth surfaces are respectively formed on one side of the two groups, one end of the sliding rail is fixedly provided with a compression spring, the other end of the compression spring is arranged on the side wall of the sliding chute, the end surface of one side of the two groups of clamping blocks facing the central axis direction of the shell is provided with a semicircular groove, and the shape of the combined two grooves is matched with that of the quick joint; the inner walls of the two through holes are respectively and fixedly provided with a rotating shaft, the rotating shafts are sleeved with gears, the gears are meshed with one side of the sliding rail with the tooth surface, the peripheral outline of the gears is wound with a pull rope, one end of the pull rope far away from the gears is fixedly connected with a rotating lever, and the rotating lever is hinged with the outer wall of the first shell; the second interface module comprises a second shell, the second shell is detachably connected with the first shell, a second channel is formed in the central axis of the second shell, the second channel penetrates through the two ends of the second shell and is communicated with the first channel, the filling gun head is arranged in the second channel, and the gun mouth faces to the direction of the first shell.
Optionally, a hollow colloid sealing tube is arranged in the second channel, an outer wall of the colloid sealing tube is tightly attached to an inner wall of the second channel, the filling gun head is hermetically installed in an inner pipeline of the colloid sealing tube, a pressure sensor is fixedly arranged at one end of the colloid sealing tube close to the first shell, and the pressure sensor is electrically connected with the wireless signal transmitting module.
Optionally, a plurality of third channels are further formed in the housing wall of the second housing, an opening at one end of each third channel penetrates through the inner wall of the second channel, the opening position of each third channel corresponds to the interface of the filling gun head, a hole matched with the opening of each third channel is formed in the side wall of the colloid sealing tube in a penetrating manner, and an opening at the other end of each third channel penetrates through the side wall of the second housing and is connected with an air pump through an air guide hose.
Optionally, the cross section of the filling gun head is in a convex shape and has a stepped outer wall profile, a gap portion is formed between the outer wall of the filling gun head and the inner pipeline of the colloid sealing tube, and the gap portion is communicated with the third channel.
Optionally, a wire casing along the circumferential direction of the gear is formed in the outer wall of the gear, and the bottom wall of the wire casing extends towards the central direction of the gear.
Optionally, an O-ring seal is disposed on an end surface of the first housing and the second housing, which is in mounting contact with each other.
Has the advantages that:
the joint assembly comprises a first interface module and a second interface module, the first interface module is arranged to clamp the quick joint and tightly contact and connect the quick joint with the filling gun head, so that the quick joint is stably butted with the filling gun head, and the air conditioner refrigerant leakage is prevented from causing pollution; a colloid sealing pipe is arranged to further prevent the refrigerant from leaking; simultaneously, the air suction pump and the third channel are arranged, so that once refrigerant leakage occurs in the filling process, the leaked refrigerant can be quickly extracted and stored through the air suction pump, and further pollution is avoided.
The specific use method of the interface component comprises the following steps: firstly, holding the interface component and aligning the first channel with the quick connector, then clamping and positioning the quick connector in the semicircular groove, then holding the rotating levers at two sides of the interface component, rotating the levers around the hinge point to drive the pull rope to lift up, thereby driving the gear to rotate around the rotating shaft, the gear is meshed with the tooth surface of the slide rail to push the clamping blocks to slide in the wedge-shaped surface of the first channel, the gap between the two groups of clamping blocks is smaller and smaller, the semicircular groove gradually merges, thereby increasing the clamping and fixing effect of the quick connector, when the interface of the quick connector is completely butted with the muzzle of the filling gun head, the end surface of the clamping block is simultaneously butted with the end surface of the colloid sealing tube, the end surface of the clamping block extrudes the pressure sensor, the wireless signal transmitting module transmits a generated pressure signal, the wireless signal receiving module receives the signal and feeds the signal back, thereby completing the filling process; when the filling is finished, the rotating lever is loosened, the filling gun head stops filling, and meanwhile the quick connector is separated from the filling gun head.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
Fig. 1 is a schematic structural diagram of an overall structure of an air conditioner refrigerant filling device according to one or more embodiments of the present disclosure;
fig. 2 is a schematic structural diagram of an interface assembly in an air conditioner refrigerant filling device according to one or more embodiments of the present disclosure;
FIG. 3 is a schematic cross-sectional view taken at angle A-A of FIG. 2;
fig. 4 is a schematic structural diagram of a first interface module of an interface assembly in an air conditioner refrigerant filling device according to one or more embodiments of the present disclosure;
fig. 5 is a schematic structural diagram of a second interface module of an interface assembly in an air conditioner refrigerant filling device according to one or more embodiments of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.
As shown in fig. 1 to 5, the present specification provides an embodiment, an air-conditioning refrigerant filling device, including a refrigerant tank 1, a booster pump 2, a filling machine 3, a filling gun head 310 connected to a hose of the filling machine 3, and a quick coupling 4 sleeved on an air-conditioning pipeline, which are sequentially communicated; wherein filled the air conditioner refrigerant in refrigerant jar 1, booster pump 2 and refrigerant jar 1 interface intercommunication installation, carry the refrigerant to filling the machine 3 through booster pump 2, fill filling machine 3 and fill and connect through the air guide hose between the rifle head 310, when placing, the air guide hose need prevent to buckle.
The wireless control assembly 6 comprises a control valve 630 arranged on the charging machine 3, a wireless signal transmitting module 610 fixedly connected to the joint assembly 5, and a wireless signal receiving module 620 electrically connected to the control valve 630; one end of the joint component 5 is fixedly connected with the filling gun head 310, and the other end is sleeved with the quick joint 4; when the quick connector 4 and the filling gun head 310 are tightly connected, signals are transmitted through the wireless control assembly 6, so that the control valve 630 opens the filling machine 3 to fill the air conditioner with the refrigerant.
In an alternative embodiment, the joint assembly 5 includes a first interface module 510 and a second interface module 520, and the first interface module 510 and the second interface module 520 are assembled by fastening bolts and nuts;
the first interface module 510 includes a first housing 511, a first channel 512 with an isosceles trapezoid cross section is disposed at a central axis of the first housing 511, the first channel 512 penetrates two ends of the housing, wherein one end of the first channel 512 with a smaller opening is disposed near the second interface module 520;
two groups of sliding grooves 513 are symmetrically formed in the inner wall of the first channel 512 along the length direction of the profile of the first channel, each sliding groove 513 is in a long strip shape, and two ends of each sliding groove 513 do not exceed the length of the profile of the side wall of the first channel 512;
a through hole 514 is vertically formed in the outer wall of the first housing 511, and the through hole 514 is communicated with the inner bottom wall of the sliding groove 513;
two groups of clamping blocks 515 with right trapezoid cross sections are symmetrically arranged in the first channel 512, the two groups of clamping blocks 515 are respectively arranged on two opposite side walls in the first channel 512, are attached to the side walls and can slide relatively, two groups of sliding rails 516 are fixedly arranged on the side wall of one side of the two groups of clamping blocks 515 facing the sliding groove 513, and the clamping blocks 515 and the sliding rails 516 are connected and fixed by adopting hexagon socket head bolts for convenience of overhauling and maintenance;
the two groups of sliding rails 516 are symmetrically arranged in the sliding groove 513, so that the clamping block 515 is driven to slide back and forth along the track direction of the sliding groove 513, and the sliding rails 516 need to be subjected to lubricating grease coating treatment;
two groups of sliding rails 516 are respectively provided with a tooth surface at one side far away from the clamping block 515, one end of the sliding rail 516 is fixedly provided with a compression spring, and the other end of the compression spring is arranged on the side wall of the sliding groove 513 and is arranged at one end close to the second interface module 520;
the two groups of clamping blocks 515 are provided with semicircular grooves 515a on the end surface of one side facing the central axis direction of the shell, the shape of the combined two grooves 515a is matched with that of the quick joint 4, and the clamping blocks 515 arranged in a sliding manner are used for clamping the quick joint 4 more stably;
the inner walls of the two through holes 514 are respectively fixedly provided with a rotating shaft, the rotating shaft is sleeved with a gear 517, the gear 517 is engaged with one side of the sliding rail 516 with the tooth surface, the outer peripheral profile of the gear 517 is wound with a pull rope 518, one end of the pull rope 518 far away from the gear 517 is fixedly connected with a rotating lever 519, and the rotating lever 519 is hinged with the outer wall of the first shell 511.
The specific use method comprises the following steps: the interface assembly 5 is firstly held, the first channel 512 is aligned with the quick connector 4, then the quick connector 4 is clamped and positioned in the semicircular groove 515a, then the rotating levers 519 on two sides of the interface assembly 5 are held, the rotating levers 519 rotate around the hinge point to drive the pull rope 518 to lift upwards, so that the driving gear 517 rotates around the rotating shaft, the gear 517 is meshed with the tooth surface of the sliding rail 516, the clamping blocks 515 are pushed to slide in the wedge-shaped surfaces of the first channel 512, the gap between the two groups of clamping blocks 515 is smaller and smaller, and the semicircular grooves 515a are gradually combined, so that the clamping and fixing effect on the quick connector 4 is improved.
The second interface module 520 comprises a second housing 521, a second channel 522 is formed in the central axis of the second housing 521, the second channel 522 penetrates through two ends of the second housing 521 and is communicated with the first channel 512, the filling gun head 310 is arranged in the second channel 522, and the gun head faces the direction of the first housing 511; while sealing between the filling head 310 and the inner wall of the second passageway 522.
Further, a hollow colloid sealing tube 523 is installed in the second channel 522, the outer wall of the colloid sealing tube 523 is tightly attached to the inner wall of the second channel 522, the filling gun head 310 is sealed and installed in the inner pipeline of the colloid sealing tube 523, a pressure sensor 640 is fixedly installed at one end of the colloid sealing tube 523 close to the first housing 511, and the pressure sensor 640 is electrically connected with the wireless signal transmitting module 610.
Further, if the operation is not proper, a small amount of air-conditioning refrigerant still leaks in the filling process, and the small amount of leaked refrigerant needs to be recovered, so that a plurality of third channels 524 are further formed in the housing wall of the second housing 521, one end of each third channel 524 is opened to penetrate through the inner wall of the second channel 522, the opening position of each third channel is corresponding to the interface of the filling gun head 310, a hole matched with the opening of the third channel 524 is formed in the side wall of the colloid sealing tube 523 in a penetrating manner, the other end of each third channel 524 is opened to penetrate through the side wall of the second housing 521, and the other end of each third channel 524 is connected with the air extracting. In the production process, the air pump 720 is always in the working state, so even if a small amount of refrigerant leaks due to improper operation, the refrigerant is immediately extracted by the air pump 720, and the refrigerant is prevented from escaping into a workshop.
Further, the cross section of the filling gun head 310 is convex and has a stepped outer wall profile, a gap 525 is formed between the outer wall of the filling gun head 310 and an inner pipeline of the gas seal pipe 523, the gap 525 is communicated with the third channel 524, a space 525 is left for a leaked refrigerant to stay, and meanwhile, the opening of the third channel 524 is prevented from being blocked by the filling gun head 310.
Furthermore, a wire casing 517a along the circumferential direction of the gear 517 is formed on the outer wall of the gear 517, the bottom wall of the wire casing 517a extends towards the center direction of the gear 517, and the pulling rope 518 is wound in the wire casing 517 a.
Further, in order to ensure the sealing performance of the interface assembly, the end surfaces of the first housing 511 and the second housing 521, which are in mounting contact with each other, are provided with O-rings 530.
In summary, the first interface module 510 is arranged to clamp the quick coupling 4 and tightly contact and connect the quick coupling 4 with the charging gun head 310, so that the quick coupling 4 and the charging gun head are stably butted, and air-conditioning refrigerant leakage is prevented from causing pollution; a colloid sealing pipe 523 is arranged to further prevent the refrigerant from leaking; meanwhile, the air pump 720 and the third channel 524 are arranged, so that once refrigerant leakage occurs in the filling process, the leaked refrigerant can be quickly extracted and stored through the air pump 720, and further pollution is avoided.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (7)
1. The utility model provides an air conditioner refrigerant fills annotates and annotates device, includes refrigerant jar, booster pump, fill the fill machine that communicate in proper order, with fill that quick-operation joint on air conditioner pipeline is annotated to fill rifle head and cup joint, its characterized in that includes: the wireless control assembly comprises a control valve arranged on the charging machine, a wireless signal transmitting module fixedly connected to the joint assembly and a wireless signal receiving module electrically connected with the control valve; one end of the joint component is fixedly connected with the filling gun head, and the other end of the joint component is sleeved with the quick joint.
2. An air conditioner refrigerant charging apparatus as set forth in claim 1, wherein: the joint assembly comprises a first interface module and a second interface module; the first interface module comprises a first shell, a first channel with an isosceles trapezoid cross section is arranged at the central axis of the first channel, the first channel penetrates through two ends of the shell, two groups of sliding grooves are symmetrically formed in the inner wall of the first channel along the length direction of the outline of the first channel, the sliding grooves are long-strip-shaped, a through hole is vertically formed in the outer wall of the first shell, the through hole is communicated with the inner bottom wall of the sliding grooves, two groups of clamping blocks with right trapezoid cross sections are symmetrically arranged in the first channel, the two groups of clamping blocks are respectively arranged on two opposite side walls in the first channel, are attached to the side walls and can slide relative to the side walls, two groups of sliding rails are fixedly arranged on one side wall facing the sliding grooves, the two groups of sliding rails are symmetrically arranged in the sliding grooves and drive the clamping blocks to slide back and forth along the track direction of the sliding grooves, and tooth surfaces are respectively formed on one side of the two groups, one end of the sliding rail is fixedly provided with a compression spring, the other end of the compression spring is arranged on the side wall of the sliding chute, the end surface of one side of the two groups of clamping blocks facing the central axis direction of the shell is provided with a semicircular groove, and the shape of the combined two grooves is matched with that of the quick joint; the inner walls of the two through holes are respectively and fixedly provided with a rotating shaft, the rotating shafts are sleeved with gears, the gears are meshed with one side of the sliding rail with the tooth surface, the peripheral outline of the gears is wound with a pull rope, one end of the pull rope far away from the gears is fixedly connected with a rotating lever, and the rotating lever is hinged with the outer wall of the first shell; the second interface module comprises a second shell, the second shell is detachably connected with the first shell, a second channel is formed in the central axis of the second shell, the second channel penetrates through the two ends of the second shell and is communicated with the first channel, the filling gun head is arranged in the second channel, and the gun mouth faces to the direction of the first shell.
3. An air conditioner refrigerant charging apparatus as set forth in claim 2, wherein: the second channel is internally provided with a hollow colloid sealing tube, the outer wall of the colloid sealing tube is tightly attached to the inner wall of the second channel, the filling gun head is hermetically arranged in the inner pipeline of the colloid sealing tube, one end of the colloid sealing tube close to the first shell is fixedly provided with a pressure sensor, and the pressure sensor is electrically connected with the wireless signal transmitting module.
4. An air conditioner refrigerant charging apparatus as set forth in claim 3, wherein: the shell wall of the second shell is also provided with a plurality of third channels, one end of each third channel is provided with an opening which penetrates through the inner wall of the second channel, the opening position of each third channel corresponds to the interface of the filling gun head, the side wall of the colloid sealing tube is provided with a hole matched with the opening of the third channel in a penetrating manner, and the other end of each third channel is provided with an opening which penetrates through the side wall of the second shell and is connected with an air extracting pump through an air guide hose.
5. An air conditioner refrigerant charging apparatus as set forth in claim 4, wherein: the cross section of the filling gun head is in a convex shape and has a step-shaped outer wall profile, a gap part is formed between the outer wall of the filling gun head and the inner pipeline of the colloid sealing pipe, and the gap part is communicated with the third channel.
6. An air conditioner refrigerant charging apparatus as set forth in claim 2, wherein: the outer wall of the gear is provided with a wire groove along the circumferential direction of the gear, and the bottom wall of the wire groove extends towards the central direction of the gear.
7. An air conditioner refrigerant charging apparatus as set forth in claim 2, wherein: and the end surfaces of the first shell and the second shell which are in installation contact are provided with O-shaped sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010559510.8A CN111780463B (en) | 2020-06-18 | 2020-06-18 | Air conditioner refrigerant filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010559510.8A CN111780463B (en) | 2020-06-18 | 2020-06-18 | Air conditioner refrigerant filling device |
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| CN111780463A true CN111780463A (en) | 2020-10-16 |
| CN111780463B CN111780463B (en) | 2021-12-24 |
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| CN202010559510.8A Active CN111780463B (en) | 2020-06-18 | 2020-06-18 | Air conditioner refrigerant filling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117666740A (en) * | 2024-01-30 | 2024-03-08 | 苏州元脑智能科技有限公司 | Server liquid cooling structure and server |
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| CN117666740B (en) * | 2024-01-30 | 2024-04-05 | 苏州元脑智能科技有限公司 | Server liquid cooling structure and server |
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