Automobile air conditioner refrigerant filling platform

By introducing a positioning and filtration mechanism into the automotive air conditioning refrigerant filling station, and utilizing a motor-driven gear transmission and spring clamping assembly, the automatic positioning and filtration of the refrigerant container is achieved, solving the inefficiency problem caused by manual adjustment in the existing technology and improving the accuracy and efficiency of filling.

CN224262002UActive Publication Date: 2026-05-19HAINING ZELL AUTOMOBILE TESTING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINING ZELL AUTOMOBILE TESTING EQUIP CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing automotive air conditioning refrigerant filling stations require manual adjustment of the container position, resulting in low work efficiency. Furthermore, some equipment lacks oil level detection capabilities, affecting the accuracy of filling.

Method used

The system employs a positioning mechanism and a filtration mechanism. The refrigerant container is automatically positioned and filtered by a motor-driven gear transmission. Springs and clamping components ensure the container's stability. The motor-driven rotating short column and bevel gear transmission achieve refrigerant stirring and filtration.

Benefits of technology

It improves the automation of the refrigerant filling operation, ensures the precise positioning and filtration of the refrigerant container, enhances work efficiency, avoids the inefficiency caused by manual adjustment, and enables precise replenishment of refrigeration oil.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224262002U_ABST
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Abstract

The utility model relates to the technical field of automobiles, and discloses an automobile air conditioner refrigerant filling table which comprises a machine body, a positioning mechanism is installed on the front side of the machine body and facilitates filling of refrigerants, and a filtering mechanism is installed at the top of the rear side of the machine body and used for filtering the refrigerants. The positioning mechanism comprises a second motor, the second motor is installed in the middle of the right end of the front side of the machine body, the output end of the second motor is fixedly connected with a driving gear, the middle of the front side of the machine body is slidably connected with a sliding plate, and the right end of the sliding plate is fixedly connected with a rack. According to the refrigerant filling device, when filling is needed, the second motor is started to drive the driving gear to rotate, the rack moves and pushes the sliding plate to slide on the front side of the machine body, after the sliding plate drives the baffle and the clamping assembly to synchronously move to proper positions, the clamping plate stably clamps a refrigerant container under the action of the spring and the protection pipe, and then the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to an automotive air conditioning refrigerant charging station. Background Technology

[0002] Automotive air conditioning refrigerant is a medium that circulates in the air conditioning system. Its main function is to transfer heat through its own phase change, thereby achieving a cooling effect. Common refrigerants such as R134a have the characteristics of low boiling point, high thermal conductivity, stable chemical properties, and relatively environmental friendliness. With the coordinated action of the compressor, condenser, expansion valve, and evaporator components, the refrigerant continuously completes the cycle of absorbing heat and vaporizing and releasing heat and liquefying, providing cool air for the vehicle interior.

[0003] An automotive air conditioning refrigerant charging station is a specialized piece of equipment for charging, recovering, purifying, leak-detecting, and refilling refrigerant in automotive air conditioning systems. It mainly consists of a refrigerant recovery unit, a purification unit, a charging and metering unit, a vacuum system, a pressure gauge set, and a control system. It can recover old refrigerant without disassembling the air conditioning system, evacuate the system to remove air and moisture, and then accurately meter and charge new refrigerant. It also has a pressure detection function to ensure the cooling effect and operational safety of the air conditioning system. It is widely used in automotive repair and maintenance. However, oil separators have less than 100% efficiency in separating refrigerant oil. Trace amounts of residual refrigerant oil are refilled with refrigerant, leading to excessively high oil levels in the system and affecting compressor lubrication. Some low-end equipment lacks oil level detection, making accurate refrigerant oil replenishment impossible and requiring manual estimation, which can result in overcharging or undercharging. Current technology uses pulse air rinsing nozzles at the bottom of the separation chamber, linked to a differential pressure sensor. When the resistance reaches a certain value, a backflushing program is automatically triggered and periodically monitored to prevent impurities from clogging the system. However, since the container position needs to be manually adjusted before each charge, work efficiency is reduced. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automotive air conditioning refrigerant filling station, which aims to improve the problem of reduced work efficiency in the prior art due to the need for manual adjustment of the container position before each filling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive air conditioning refrigerant charging station, comprising a body, a positioning mechanism installed on the front side of the body for facilitating refrigerant charging, and a filter mechanism installed on the top rear side of the body for filtering the refrigerant; the positioning mechanism includes a second motor installed at the middle of the right front end of the body, the output end of the second motor being fixedly connected to a drive gear, a sliding plate slidably connected to the middle front side of the body, a rack fixedly connected to the right end of the sliding plate, the top of the rack meshing with the bottom of the drive gear, a baffle fixedly connected to the front top of the sliding plate, and a clamping assembly installed on the rear side of the sliding plate.

[0006] As a further description of the above technical solution:

[0007] The clamping assembly includes a clamping plate, which is slidably connected to the top rear side of the sliding plate. A plurality of second springs are fixedly connected at equal intervals to the rear side of the clamping plate, and protective tubes are installed on the outer side of the second springs.

[0008] As a further description of the above technical solution:

[0009] The filtration mechanism includes a filter tank. A first motor is mounted on the right side of the filter tank. A rotating short column is fixedly connected to the output end of the first motor. Multiple mixing blades are fixedly connected at equal intervals to the outer side of the rotating short column. A driving bevel gear is fixedly connected to the left end of the rotating short column. A driven bevel gear is rotatably connected to the left side of the filter tank. The top of the driven bevel gear meshes with the bottom of the driving bevel gear. A connecting short column is fixedly connected to the bottom of the driven bevel gear. A connecting rod is fixedly connected to the bottom right side of the connecting short column. A connecting rope is fixedly connected to the right side of the connecting rod. Filter plates are slidably connected to the upper and lower ends of the inner side of the filter tank. The top of the connecting rope passes through the bottom filter plate and is fixedly connected to the bottom of the top filter plate. First springs are fixedly connected to the four corners of the top of the top filter plate. A support assembly is mounted on the bottom of the first motor.

[0010] As a further description of the above technical solution:

[0011] The support assembly includes a support plate, which is installed on the lower right side of the filter tank. Support rods are fixedly connected to the front and rear ends of the bottom of the support plate.

[0012] As a further description of the above technical solution:

[0013] Multiple buttons are equidistantly installed on the top front side of the machine body, and a control device is installed on the top rear side of the machine body.

[0014] As a further description of the above technical solution:

[0015] A feed pipe is installed at the rear top of the machine body. The bottom of the feed pipe is connected to the top of the filter tank. A circular cover is installed at the top of the feed pipe.

[0016] As a further description of the above technical solution:

[0017] An installation block is installed on the rear left side of the top of the machine body, and the right side of the installation block is fixedly connected to the left side of the filter tank.

[0018] As a further description of the above technical solution:

[0019] The left side of the unit has multiple heat dissipation slots at equal intervals, and the four corners of the bottom of the unit are fixedly connected with casters. The front center of the unit has multiple refrigerant containers at equal intervals.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when refueling is required, the second motor is started to drive the drive gear to rotate, causing the rack to move and push the sliding plate to slide on the front side of the machine body. After the sliding plate drives the baffle and clamping assembly to move synchronously to the appropriate position, the clamping plate firmly clamps the refrigerant container under the action of the spring and the protective tube, thereby improving the working efficiency.

[0022] 2. In this utility model, after the refrigerant enters the filter tank, the first motor is started to drive the rotating short column to rotate, the mixing blades stir the refrigerant, the active bevel gear drives the driven bevel gear to rotate, and the filter plate moves up and down in the filter tank through the connecting mechanism to achieve filtration. The top spring plays a buffering role. Attached Figure Description

[0023] Figure 1 This is a perspective view of the automotive air conditioning refrigerant charging station proposed in this utility model;

[0024] Figure 2 This is a front view of the automotive air conditioning refrigerant charging station proposed in this utility model;

[0025] Figure 3 This is a side view of the automotive air conditioning refrigerant charging station proposed in this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the automotive air conditioning refrigerant charging station proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the automotive air conditioning refrigerant charging station proposed in this utility model.

[0028] Legend:

[0029] 1. Body; 2. Filtration mechanism; 201. First motor; 202. Rotating short column; 203. Mixing blades; 204. Filter plate; 205. Driving bevel gear; 206. Driven bevel gear; 207. Connecting rod; 208. Connecting rope; 209. First spring; 210. Support assembly; 2101. Support plate; 2102. Support rod; 211. Filter tank; 212. Connecting short column; 3. Positioning mechanism; 301. Second motor; 302. Driving gear; 303. Rack; 304. Sliding plate; 305. Baffle; 306. Clamping assembly; 3061. Second spring; 3062. Protective tube; 3063. Clamping plate; 4. Mounting block; 5. Refrigerant container; 6. Control device; 7. Feed pipe; 8. Circular cover; 9. Button; 10. Heat dissipation groove; 11. Casters. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of an automotive air conditioning refrigerant charging station, comprising a body 1. A positioning mechanism 3 is installed on the front side of the body 1 to facilitate refrigerant charging. A filter mechanism 2 is installed on the top rear side of the body 1 for filtering the refrigerant. The positioning mechanism 3 includes a second motor 301, which is installed in the middle of the right front end of the body 1. The installation of the second motor 301 enables subsequent processes to operate. The output end of the second motor 301 is fixedly connected to a drive gear 302, and the middle front part of the body 1 slides. A sliding plate 304 is connected, and a rack 303 is fixedly connected to the right end of the sliding plate 304. The top of the rack 303 meshes with the bottom of the drive gear 302. A baffle 305 is fixedly connected to the front top of the sliding plate 304. A clamping assembly 306 is installed on the rear side of the sliding plate 304. The clamping assembly 306 includes a clamping plate 3063, which is slidably connected to the rear top of the sliding plate 304. A plurality of second springs 3061 are fixedly connected at equal intervals on the rear side of the clamping plate 3063. A protective tube 3062 is installed on the outside of the second springs 3061.

[0032] Specifically, when a refrigerant filling operation is required, the second motor 301 located in the middle of the right side of the front of the body 1 is activated. The output end of the second motor 301 drives the drive gear 302 to rotate. The drive gear 302 meshes with the rack 303 at the bottom, causing it to move. The movement of the rack 303 in turn drives the sliding plate 304 located in the middle of the front of the body 1 to slide. The baffle 305 on the front side of the top of the sliding plate 304 and the clamping assembly 306 on the rear side also move synchronously, moving the refrigerant container 5 to a suitable position. Subsequently, the clamping plate 3063 slides on the rear side of the top of the sliding plate 304. Multiple second springs 3061 fixed at equal intervals on its rear side are compressed and contracted. Under the protection of the protective tube 3062, the refrigerant container 5 is firmly clamped and positioned, ensuring the smooth progress of the filling operation.

[0033] Reference Figure 1 , Figure 3 and Figure 5 The filtration mechanism 2 includes a filter tank 211. A first motor 201 is installed on the right side of the filter tank 211. A rotating short column 202 is fixedly connected to the output end of the first motor 201. Multiple mixing blades 203 are fixedly connected at equal intervals to the outer side of the rotating short column 202. The installation of the first motor 201 provides power to subsequent processes. A driving bevel gear 205 is fixedly connected to the left end of the rotating short column 202. A driven bevel gear 206 is rotatably connected to the left side of the filter tank 211. The top of the driven bevel gear 206 meshes with the bottom of the driving bevel gear 205. A connecting short column 212 is fixedly connected to the bottom of the driven bevel gear 206. A connecting rod 207 is fixedly connected to the bottom right side of the connecting short column 212. A connecting rope 208 is fixedly connected to the right side of the connecting rod 207. Filter plates 204 are slidably connected to the upper and lower ends of the inner side of the filter tank 211. The top of the connecting rope 208 passes through the bottom filter plate 204 and connects to the top... The bottom of the filter plate 204 is fixedly connected, and the top four corners of the top filter plate 204 are all fixedly connected with the first spring 209. The bottom of the first motor 201 is equipped with a support assembly 210, which includes a support plate 2101. The support plate 2101 is installed on the lower right side of the filter tank 211. The front and rear ends of the bottom of the support plate 2101 are fixedly connected with support rods 2102. The installation of the support plate 2101 ensures that the first motor 201 can be installed stably. The top rear side of the machine body 1 is equipped with a feed pipe 7. The bottom of the feed pipe 7 is connected to the top of the filter tank 211. The top of the feed pipe 7 is equipped with a circular cover 8. The top left rear side of the machine body 1 is equipped with an installation block 4. The right side of the installation block 4 is fixedly connected to the left side of the filter tank 211. The installation of the circular cover 8 prevents a large amount of dirt from entering from here. The installation of the installation block 4 ensures that the driven bevel gear 206 can be installed stably.

[0034] Specifically, refrigerant flows into filter tank 211, and then the first motor 201 installed on the right side of filter tank 211 is started. The output end of the first motor 201 drives the rotating short column 202 to rotate. Multiple mixing blades 203 fixed at equal intervals on the outer side of the rotating short column 202 rotate accordingly to stir and mix the refrigerant. The driving bevel gear 205 at the left end of the rotating short column 202 rotates synchronously, thereby driving the driven bevel gear 206 meshing with it to rotate. The connecting short column 212 at the bottom of the driven bevel gear 206 rotates accordingly. The connecting rod 207 on the right side of the bottom of the connecting short column 212 then performs a circular motion. The connecting rope 208 on the right side of the connecting rod 207 pulls the filter plate 204, which is slidably connected to the inside of the filter tank 211, to move up and down, thereby filtering the refrigerant. The first spring 209 located at the four corners of the top of the top filter plate 204 plays a buffering role.

[0035] Reference Figure 1 , Figure 2 and Figure 3 Multiple buttons 9 are equidistantly installed on the top front side of the body 1, a control device 6 is installed on the top rear side of the body 1, multiple heat dissipation slots 10 are equidistantly opened on the left side of the body 1, universal wheels 11 are fixedly connected to the four corners of the bottom of the body 1, and multiple refrigerant containers 5 are equidistantly arranged in the middle of the front end of the body 1.

[0036] Specifically, the installation of control device 6 facilitates use by staff, and the installation of casters 11 facilitates movement of the device.

[0037] Working principle: When refrigerant needs to be added, the second motor 301 located in the middle of the right side of the front of the body 1 is started. The output end of the second motor 301 drives the drive gear 302 to rotate. The rack 303 meshing with the bottom of the drive gear 302 moves accordingly, thereby driving the sliding plate 304 to slide in the middle of the front of the body 1. The baffle 305 on the front side of the top of the sliding plate 304 and the clamping assembly 306 on the rear side also move synchronously. After the refrigerant container 5 is moved to the appropriate position, the clamping plate 3063 slides on the rear side of the top of the sliding plate 304. Multiple second springs 3061 fixed at equal intervals on the rear side are compressed and contracted. Under the protection of the protective tube 3062, the refrigerant container 5 is firmly clamped and positioned so that the refrigerant addition operation can be carried out smoothly.

[0038] Refrigerant enters filter tank 211, activating the first motor 201 installed on the right side of filter tank 211. The output of the first motor 201 drives the rotating short column 202 to rotate, and multiple mixing blades 203 fixed at equal intervals on the outer side of the rotating short column 202 rotate accordingly, stirring and mixing the refrigerant. The driving bevel gear 205 at the left end of the rotating short column 202 rotates synchronously, driving the driven bevel gear 206 to rotate. The connecting short column 212 at the bottom of the driven bevel gear 206 rotates, and the connecting rod 207 on the right side of the bottom of the connecting short column 212 moves in a circular motion. The connecting rope 208 on the right side of the connecting rod 207 pulls the filter plate 204, which is slidably connected to the inside of the filter tank 211, to move up and down, filtering the refrigerant. The first springs 209 at the four corners of the top of the top filter plate 204 provide a buffering effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automotive air conditioning refrigerant charging station, comprising a body (1), characterized in that: A positioning mechanism (3) is installed on the front side of the body (1), which facilitates the charging of refrigerant. A filter mechanism (2) is installed on the top rear side of the body (1), which is used for filtering refrigerant. The positioning mechanism (3) includes a second motor (301), which is installed in the middle of the right front end of the body (1). The output end of the second motor (301) is fixedly connected to a drive gear (302). A sliding plate (304) is slidably connected to the middle front side of the body (1). A rack (303) is fixedly connected to the right end of the sliding plate (304). The top of the rack (303) meshes with the bottom of the drive gear (302). A baffle (305) is fixedly connected to the front top of the sliding plate (304). A clamping assembly (306) is installed on the rear side of the sliding plate (304).

2. The automotive air conditioning refrigerant charging station according to claim 1, characterized in that: The clamping assembly (306) includes a clamping plate (3063), which is slidably connected to the top rear side of the sliding plate (304). A plurality of second springs (3061) are fixedly connected at equal intervals to the rear side of the clamping plate (3063), and a protective tube (3062) is installed on the outside of the second springs (3061).

3. The automotive air conditioning refrigerant charging station according to claim 1, characterized in that: The filtration mechanism (2) includes a filter tank (211). A first motor (201) is installed on the right side of the filter tank (211). A rotating short column (202) is fixedly connected to the output end of the first motor (201). Multiple mixing blades (203) are fixedly connected at equal intervals on the outer side of the rotating short column (202). A driving bevel gear (205) is fixedly connected to the left end of the rotating short column (202). A driven bevel gear (206) is rotatably connected to the left side of the filter tank (211). The top of the driven bevel gear (206) meshes with the bottom of the driving bevel gear (205). A connecting short column (212) is fixedly connected to the bottom of the filter tank (211). A connecting rod (207) is fixedly connected to the right side of the bottom of the connecting short column (212). A connecting rope (208) is fixedly connected to the right side of the connecting rod (207). Filter plates (204) are slidably connected to the upper and lower ends of the inner side of the filter tank (211). The top of the connecting rope (208) passes through the bottom filter plate (204) and is fixedly connected to the bottom of the top filter plate (204). A first spring (209) is fixedly connected to the four corners of the top of the top filter plate (204). A support assembly (210) is installed at the bottom of the first motor (201).

4. The automotive air conditioning refrigerant charging station according to claim 3, characterized in that: The support assembly (210) includes a support plate (2101), which is installed on the lower right side of the filter tank (211). Support rods (2102) are fixedly connected to the front and rear ends of the bottom of the support plate (2101).

5. The automotive air conditioning refrigerant charging station according to claim 1, characterized in that: Multiple buttons (9) are equidistantly installed on the top front side of the body (1), and a control device (6) is installed on the top rear side of the body (1).

6. The automotive air conditioning refrigerant charging station according to claim 3, characterized in that: A feed pipe (7) is installed on the rear side of the top of the body (1). The bottom of the feed pipe (7) is connected to the top of the filter tank (211). A circular cover (8) is installed on the top of the feed pipe (7).

7. The automotive air conditioning refrigerant charging station according to claim 3, characterized in that: An installation block (4) is installed on the rear left side of the top of the body (1), and the right side of the installation block (4) is fixedly connected to the left side of the filter tank (211).

8. The automotive air conditioning refrigerant charging station according to claim 1, characterized in that: Multiple heat dissipation slots (10) are provided at equal intervals on the left side of the body (1), and universal wheels (11) are fixedly connected to the four corners of the bottom of the body (1). Multiple refrigerant containers (5) are provided at equal intervals in the middle of the front end of the body (1).