Gas-liquid separator for heat pump system of automobile air conditioner

Abstract

The utility model relates to the technical field of gas-liquid separators, in particular to a gas-liquid separator for a heat pump system of an automobile air conditioner, which comprises a hollow barrel with an opening at the top, a joint hermetically mounted at the opening of the barrel, and a pipeline and a dryer which are arranged in the barrel and are arranged in parallel. The top end of the pipeline is communicated with the air outlet of the connector, the bottom end of the pipeline is connected with the inner bottom wall of the barrel, the device further comprises a bottom cover, a connecting sleeve and connecting pieces, the connecting sleeve is installed at the top end of the bottom cover and inserted into a sleeve hole formed in the bottom wall of the barrel, the bottom cover is connected with the bottom wall of the barrel through the connecting pieces, and the bottom end of the dryer is inserted into the connecting sleeve; the dryer is simple in structural design, the drying agent in the dryer is convenient and thorough to replace, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separators, in particular to a gas-liquid separator for an automotive air-conditioning heat pump system. Background Art

[0002] Gas-liquid separators are widely used in automotive air-conditioning heat pump systems. Usually, a desiccant is arranged in the gas-liquid separator to absorb the water vapor in the refrigerant during the use of the automotive air conditioner. With the long-term use of the gas-liquid separator, the desiccant needs to be replaced due to failure. Since the gas-liquid separator is usually an integral structure that cannot be disassembled, the traditional method is to replace the entire gas-liquid separator, resulting in a relatively high maintenance cost. Currently, the existing gas-liquid separator is designed with a detachable structure at its bottom, so as to replace the desiccant in the gas-liquid separator, without replacing the entire gas-liquid separator, which reduces the maintenance cost to a certain extent, but its structural design is complex. In addition, when replacing the desiccant in the desiccant dryer, since the inner wall of the desiccant dryer will partially adhere to the ineffective desiccant, the replacement of the desiccant is not thorough enough, thus affecting the subsequent drying performance of the desiccant dryer. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a gas-liquid separator for an automotive air-conditioning heat pump system with a simple structural design, convenient and thorough replacement of the desiccant in the desiccant dryer, and low maintenance cost.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a gas-liquid separator for an automotive air-conditioning heat pump system, including a hollow cylinder with an open top, a joint sealed and installed at the opening of the cylinder, a pipeline and a desiccant dryer arranged in the cylinder. The pipeline and the desiccant dryer are arranged in parallel. The top end of the pipeline is communicated with the air outlet of the joint, and its bottom end is connected to the inner bottom wall of the cylinder. It also includes a bottom cover, a connecting sleeve and a connecting piece. The connecting sleeve is installed at the top end of the bottom cover and is inserted into a sleeve hole opened on the bottom wall of the cylinder. The bottom cover is connected to the bottom wall of the cylinder through a plurality of connecting pieces. The bottom end of the desiccant dryer is inserted into the connecting sleeve.

[0005] Further, the desiccant dryer includes a body, an upper cover and a cleaning component. The body is a hollow cylindrical structure with an open top. The upper cover is arranged at the opening of the body and is threadedly connected to the body. Communication holes are opened on both the side wall and the upper cover of the body. The cleaning component is arranged in the body to clean the desiccant adhering to the inner side wall of the body.

[0006] Further, the cleaning assembly includes a lead screw, a lead nut, a ring frame, guide blocks, a brush sleeve, and an actuator. The lead screw is coaxially disposed within the body. The bottom end of the lead screw extends into a rod hole formed in the bottom wall of the body and is rotatably connected to the rod hole. The top end of the lead screw contacts the upper cover. The lead nut is threadedly sleeved on the lead screw. The inner ring of the ring frame is sleeved on the lead nut. There are several guide blocks, which are evenly installed on the outer ring of the ring frame. The guide blocks are embedded in guide grooves formed in the inner side wall of the body and are slidably engaged with the guide grooves. The brush sleeve is sleeved on the outer ring of the ring frame and contacts the inner side wall of the body. The actuator is installed at the bottom end of the lead screw.

[0007] Further, the actuator is a corner groove formed at the bottom end of the lead screw.

[0008] Further, the actuator is a knob connected to the bottom end of the lead screw.

[0009] Further, a sealing ring is embedded on the outer wall of the connecting sleeve, and the sealing ring abuts against the inner wall of the sleeve hole.

[0010] Further, it further includes a liquid dispersion cup. The liquid dispersion cup is disposed within the cylinder body and is connected to the bottom end of the connector. The liquid dispersion cup is disposed above the dryer and sleeved on the top of the pipeline. There is a gap L between the outer wall of the liquid dispersion cup and the inner side wall of the cylinder body.

[0011] Further, the pipeline includes an air outlet pipe, an outer sleeve pipe, a filter cover, and a filter. The top end of the air outlet pipe passes through the liquid dispersion cup and is inserted into the air outlet. The outer sleeve pipe is coaxially sleeved outside the air outlet pipe and forms a flow channel therebetween. There is a distance H between the top surface of the outer sleeve pipe and the bottom surface of the liquid dispersion cup, and its bottom surface protrudes from the bottom end of the air outlet pipe. The top end of the filter cover is sleeved inside the bottom end of the outer sleeve pipe, and its bottom end is connected to the inner bottom wall of the cylinder body. The filter is disposed within the filter cover.

[0012] Further, the pipeline further includes a reinforcing rib. The reinforcing rib is disposed within the flow channel and extends axially. The outer wall of the air outlet pipe is connected to the inner wall of the outer sleeve pipe through the reinforcing rib.

[0013] Further, the connector includes a hexagon screw and a gasket. The hexagon screw passes through the bottom cover and is connected to the bottom wall of the cylinder body. The gasket is pressed against the bottom surface of the bottom cover by the nut of the hexagon screw.

[0014] The beneficial effects of the present utility model are as follows:

[0015] (1) In the present utility model, the connecting sleeve is inserted into the sleeve hole, and the bottom end of the dryer is inserted into the connecting sleeve. When the desiccant needs to be replaced, the connector is disassembled, and the connecting sleeve is pulled out of the sleeve hole, and then the dryer is synchronously taken out of the cylinder body from the sleeve hole. The replacement of the desiccant is convenient, and the structural design is simple.

[0016] (2) In the present utility model, the arrangement of the cleaning component can clean the desiccant attached to the inner side wall of the body, which is convenient to operate, making the replacement of the desiccant thorough enough to ensure the drying performance of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is an exploded view of the present utility model;

[0019] Figure 2 is an external view of the present utility model;

[0020] Figure 3 is a vertical sectional view of the present utility model;

[0021] Figure 4 is a schematic diagram of the pipeline in the present utility model;

[0022] Figure 5 is a schematic diagram of the dryer in the present utility model;

[0023] Figure 6 is a horizontal schematic diagram of the cleaning component in the present utility model;

[0024] Figure 7 is a schematic diagram of the corner groove in the present utility model;

[0025] Figure 8 is a schematic diagram of the knob in the present utility model.

[0026] In the figures: 100, cylinder body; 110, sleeve hole; 200, joint; 210, air outlet; 220, air inlet; 300, pipeline; 310, outlet pipe; 320, outer sleeve; 330, filter cover; 340, filter; 350, flow channel; 360, reinforcing rib; 400, dryer; 410, body; 411, communication hole; 412, rod hole; 413, guide groove; 420, upper cover; 430, cleaning component; 431, lead screw; 432, nut; 433, ring frame; 434, guide block; 435, brush sleeve; 436, actuator; 437, bracket; 500, bottom cover; 600, connecting sleeve; 700, connecting piece; 710, hexagon screw; 720, gasket; 800, sealing ring; 900, liquid dispersion cup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will now be further described in conjunction with the drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0028] Embodiment 1

[0029] As shown Figures 1 - 3 A gas-liquid separator for an automotive air-conditioning heat pump system includes a hollow cylinder body 100 with an open top, a joint 200 sealed and installed at the opening of the cylinder body 100, and a pipe 300 and a dryer 400 arranged inside the cylinder body 100. The pipe 300 and the dryer 400 are arranged in parallel. The top end of the pipe 300 communicates with the air outlet 210 of the joint 200, and its bottom end is connected to the inner bottom wall of the cylinder body 100. It further includes a bottom cover 500, a connecting sleeve 600 and a connecting member 700. The connecting sleeve 600 is installed at the top end of the bottom cover 500 and is inserted into a socket hole 110 opened on the bottom wall of the cylinder body 100. The bottom cover 500 is connected to the bottom wall of the cylinder body 100 through a plurality of connecting members 700. The bottom end of the dryer 400 is inserted into the connecting sleeve 600. The connecting sleeve 600 is inserted into the socket hole 110, and the bottom end of the dryer 400 is inserted into the connecting sleeve 600. When the desiccant needs to be replaced, the connecting member 700 is disassembled, the connecting sleeve 600 is pulled out from the socket hole 110, and then the dryer 400 is synchronously taken out of the cylinder body 100 from the socket hole 110. The structural design is simple, and the replacement of the desiccant is convenient. With such a design, the manufacturing cost is also reduced. Specifically, an air inlet 220 is opened on the joint 200; the connecting sleeve 600 and the bottom cover 500 are integrally formed and connected; there are three connecting members 700. The connecting member 700 includes a hexagon socket head cap screw 710 and a gasket 720. The hexagon socket head cap screw 710 passes through the bottom cover 500 and is connected to the bottom wall of the cylinder body 100. The gasket 720 is pressed against the bottom surface of the bottom cover 500 by the nut of the hexagon socket head cap screw 710.

[0030] As shown Figure 3 In order to improve the sealing performance of the socket hole 110, a sealing ring 800 is embedded on the outer wall of the connecting sleeve 600, and the sealing ring 800 abuts against the inner wall of the socket hole 110. Specifically, the number of the sealing rings 800 can be increased according to the actual sealing performance requirements.

[0031] As shown Figure 1 and Figure 3 The gas-liquid separator for an automotive air-conditioning heat pump system further includes a liquid-dispersing cup 900. The liquid-dispersing cup 900 is arranged inside the cylinder body 100 and is connected to the bottom end of the joint 200. The liquid-dispersing cup 900 is arranged above the dryer 400 and sleeved on the top of the pipe 300. There is a gap L between the outer wall of the liquid-dispersing cup 900 and the inner side wall of the cylinder body 100.

[0032] As shown Figure 1 and Figure 3As shown in the figure, the pipeline 300 includes an air outlet pipe 310, an outer sleeve pipe 320, a filter cover 330, and a filter 340. The top end of the air outlet pipe 310 passes through the liquid dispersion cup 900 and is inserted into the air outlet 210. The outer sleeve pipe 320 is coaxially sleeved outside the air outlet pipe 310, and a flow channel 350 is formed between the outer sleeve pipe 320 and the air outlet pipe 310. There is a distance H between the top surface of the outer sleeve pipe 320 and the bottom surface of the liquid dispersion cup 900, and its bottom surface protrudes from the bottom end of the air outlet pipe 310. The top end of the filter cover 330 is sleeved inside the bottom end of the outer sleeve pipe 320, and its bottom end is connected to the inner bottom wall of the cylinder body 100. The filter 340 is arranged inside the filter cover 330. The filter 340 can filter out some impurities in the cylinder body 100 to prevent the impurities from entering the compressor.

[0033] As Figure 3 and Figure 4 shown in the figure, the pipeline 300 further includes a reinforcing rib 360. The reinforcing rib 360 is arranged in the flow channel 350 and extends axially. The outer wall of the air outlet pipe 310 is connected to the inner wall of the outer sleeve pipe 320 through the reinforcing rib 360. The arrangement of the reinforcing rib 360 enhances the connection strength between the air outlet pipe 310 and the outer sleeve pipe 320. Specifically, multiple reinforcing ribs 360 can be arranged and evenly distributed along the circumferential direction of the air outlet pipe 310.

[0034] During operation, the medium circulation path is: air inlet 220 → upper space of the liquid dispersion cup 900 → gap L → lower space of the liquid dispersion cup 900 (the dryer 400 performs drying treatment) → distance H → flow channel 350 → air outlet pipe 310 → air outlet 210. When replacing the desiccant, remove the connecting piece 700, pull out the connecting sleeve 600 from the sleeve hole 110, and then synchronously take out the dryer 400 from the cylinder body 100 through the sleeve hole 110. Then pull out the bottom end of the dryer 400 from the connecting sleeve 600, and finally replace the desiccant.

[0035] Embodiment 2

[0036] To ensure the drying performance of the dryer 400, in this embodiment, the dryer 400 is optimized on the basis of Embodiment 1. As Figure 5 and Figure 6 shown in the figure, the dryer 400 includes a main body 410, an upper cover 420, and a cleaning component 430. The main body 410 is a hollow cylindrical structure with an open top. The upper cover 420 is arranged at the opening of the main body 410 and is threadedly connected to the main body 410. Communication holes 411 are formed on both the side wall of the main body 410 and the upper cover 420. The cleaning component 430 is arranged inside the main body 410 to clean the desiccant attached to the inner side wall of the main body 410. The arrangement of the cleaning component 430 can clean the desiccant attached to the inner side wall of the main body 410, which is convenient to operate, makes the replacement of the desiccant thorough enough, and thus ensures the drying performance of the dryer 400.

[0037] As Figure 6 andFigure 7 As shown, the cleaning component 430 includes a lead screw 431, a lead nut 432, a ring frame 433, a guide block 434, a brush sleeve 435, and an actuator 436. The lead screw 431 is coaxially arranged inside the main body 410. The bottom end of the lead screw 431 extends into a rod hole 412 opened on the bottom wall of the main body 410 and is rotatably connected to the rod hole 412. The top end of the lead screw 431 contacts the upper cover 420. The lead nut 432 is threadedly sleeved on the lead screw 431. The inner ring of the ring frame 433 is sleeved on the lead nut 432. There are several guide blocks 434, which are evenly installed on the outer ring of the ring frame 433. The guide blocks 434 are embedded in a guide groove 413 opened on the inner side wall of the main body 410 and are slidably matched with the guide groove 413. The brush sleeve 435 is sleeved on the outer ring of the ring frame 433 and contacts the inner side wall of the main body 410. The actuator 436 is installed at the bottom end of the lead screw 431. Specifically, the top end of the lead screw 431 is rotatably connected to the inner top wall of the main body 410 through a bracket 437 to ensure the stability of the rotation of the lead screw 431. The guide groove 413 extends along the axial direction of the main body 410. When replacing the desiccant, unscrew the upper cover 420, pour out the desiccant inside the main body 410, and then rotate the lead screw 431 through the actuator 436. The rotation of the lead screw 431 is converted into the linear motion of the lead nut 432, and then the ring frame 433 is synchronously driven to move axially, and the brush sleeve 435 scrapes the inner side wall of the main body 410. When the actuator 436 is a corner groove opened at the bottom end of the lead screw 431 (such as Figure 7 ), insert a wrench into the corner groove to rotate the lead screw 431; when the actuator 436 is a knob connected to the bottom end of the lead screw 431 (such as Figure 8 ), just rotate the knob directly.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A gas-liquid separator for an automotive air-conditioning heat pump system, comprising a hollow cylinder body (100) with an open top, a joint (200) sealed and installed at the opening of the cylinder body (100), and a pipeline (300) and a dryer (400) arranged in the cylinder body (100). The pipeline (300) and the dryer (400) are arranged in parallel. The top end of the pipeline (300) is communicated with the air outlet (210) of the joint (200), and its bottom end is connected to the inner bottom wall of the cylinder body (100). It is characterized in that: It further includes a bottom cover (500), a connecting sleeve (600) and a connecting member (700). The connecting sleeve (600) is installed at the top of the bottom cover (500) and is inserted into a sleeve hole (110) formed in the bottom wall of the cylinder body (100). The bottom cover (500) is connected to the bottom wall of the cylinder body (100) through a plurality of connecting members (700). The bottom end of the dryer (400) is inserted into the connecting sleeve (600).

2. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 1, wherein: The dryer (400) includes a body (410), an upper cover (420) and a cleaning assembly (430). The body (410) is a hollow cylindrical structure with an open top. The upper cover (420) is arranged at the opening of the body (410) and is threadedly connected to the body (410). Communication holes (411) are formed in the side wall of the body (410) and the upper cover (420). The cleaning assembly (430) is arranged inside the body (410) to clean the desiccant attached to the inner side wall of the body (410).

3. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 2, wherein: The cleaning assembly (430) includes a lead screw (431), a lead nut (432), a ring frame (433), guide blocks (434), a brush sleeve (435) and an actuator (436). The lead screw (431) is coaxially arranged inside the body (410). The bottom end of the lead screw (431) extends into a rod hole (412) formed in the bottom wall of the body (410) and is rotatably connected to the rod hole (412). The top end of the lead screw (431) contacts the upper cover (420). The lead nut (432) is threadedly sleeved on the lead screw (431). The inner ring of the ring frame (433) is sleeved on the lead nut (432). There are a plurality of guide blocks (434) which are evenly installed on the outer ring of the ring frame (433). The guide blocks (434) are embedded in a guide groove (413) formed in the inner side wall of the body (410) and are in sliding fit with the guide groove (413). The brush sleeve (435) is sleeved on the outer ring of the ring frame (433) and contacts the inner side wall of the body (410). The actuator (436) is installed at the bottom end of the lead screw (431).

4. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 3, characterized in that: The actuator (436) is a corner groove formed at the bottom end of the lead screw (431).

5. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 3, characterized in that: The actuator (436) is a knob connected to the bottom end of the lead screw (431).

6. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 1, wherein: A sealing ring (800) is embedded in the outer wall of the connecting sleeve (600), and the sealing ring (800) abuts against the inner wall of the sleeve hole (110).

7. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 1, characterized in that: It further includes a liquid dispersion cup (900). The liquid dispersion cup (900) is arranged inside the cylinder body (100) and is connected to the bottom end of the joint (200). The liquid dispersion cup (900) is arranged above the dryer (400) and is sleeved on the top of the pipeline (300). There is a gap L between the outer wall of the liquid dispersion cup (900) and the inner side wall of the cylinder body (100).

8. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 7, wherein: The pipeline (300) includes an air outlet pipe (310), an outer sleeve pipe (320), a filter cover (330) and a filter (340). The top end of the air outlet pipe (310) passes through the liquid dispersion cup (900) and is inserted into the air outlet (210). The outer sleeve pipe (320) is coaxially sleeved outside the air outlet pipe (310), and a flow channel (350) is formed between the outer sleeve pipe (320) and the air outlet pipe (310). There is a spacing H between the top surface of the outer sleeve pipe (320) and the bottom surface of the liquid dispersion cup (900), and its bottom surface protrudes from the bottom end of the air outlet pipe (310). The top end of the filter cover (330) is sleeved inside the bottom end of the outer sleeve pipe (320), and its bottom end is connected to the inner bottom wall of the cylinder body (100). The filter (340) is arranged inside the filter cover (330).

9. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 8, characterized in that: The pipeline (300) further includes a reinforcing rib (360). The reinforcing rib (360) is arranged inside the flow channel (350) and extends axially. The outer wall of the air outlet pipe (310) is connected to the inner wall of the outer sleeve pipe (320) through the reinforcing rib (360).

10. The gas-liquid separator for an automotive air-conditioning heat pump system according to claim 1, characterized in that: The connector (700) includes a hexagon screw (710) and a gasket (720). The hexagon screw (710) passes through the bottom cover (500) and is connected to the bottom wall of the cylinder body (100). The gasket (720) is pressed against the bottom surface of the bottom cover (500) by the nut of the hexagon screw (710).

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