Anti-clogging automobile air conditioner condenser drainage device
By installing a support ring and a freezing tank inside the drain pipe, the problem of condenser drain pipe blockage due to freezing was solved, and smooth flow of coolant was achieved in low-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAINAN YINGXIN AUTOMOBILE AIR CONDITIONING TECH CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-14
AI Technical Summary
When the outside temperature is low, the drain pipe of the car air conditioner condenser is prone to varying degrees of icing due to coolant freezing, and some icing areas may block the drain pipe.
A first support ring and a second support ring are installed inside the drain pipe. The support rings are equipped with a freezing tank and a through hole to connect the freezing tank and the internal channel of the drain pipe, so as to ensure that the coolant can flow when it freezes.
The support ring design prevents the drain pipe from becoming clogged due to freezing, maintains the flow of coolant, and avoids channel blockage caused by uncontrollable freezing locations.
Smart Images

Figure CN224490614U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive air conditioning technology, specifically relating to an anti-clogging automotive air conditioning condenser drainage device. Background Technology
[0002] The automotive air conditioning system, also known as automotive air conditioning, generally includes a cooling system, a heating system, and a ventilation system.
[0003] Most common automotive air conditioning condensers use an air-cooled structure, requiring interaction with external temperatures. When the external temperature is low, the coolant in the condenser drain pipe is prone to freezing. Due to differences in heat conduction rates and coolant volume, the degree of freezing varies within the drain pipe, and some frozen areas can completely block the drain pipe. Therefore, this application proposes an anti-clogging automotive air conditioning condenser drain device. Utility Model Content
[0004] The purpose of this invention is to provide an anti-clogging automotive air conditioning condenser drain device to solve the problem mentioned in the background art where, under low external temperatures, the coolant in the condenser drain pipe is prone to freezing. Due to differences in heat conduction rate and coolant quantity at various points, the degree of freezing inside the drain pipe varies, and some frozen areas can block the entire drain pipe.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clog-proof automotive air conditioning condenser drain device, comprising a condenser assembly and a drain pipe connected to the condenser assembly, wherein the drain pipe is divided into an outer pipe and an inner pipe, and a positioning groove is provided inside the inner pipe;
[0006] The drain pipe is provided with a first support ring and a second support ring in sequence.
[0007] The first support ring is provided with a plurality of first freezing tanks, the second support ring is provided with a second freezing tank, the first freezing tank is provided with a first through hole for connecting the second freezing tank, and the second freezing tank is provided with a second through hole for connecting the drain pipe channel.
[0008] A rod is inserted into the second support ring, and the rod engages with the positioning groove.
[0009] Ideally, the inner wall of the outer tube fits snugly against the outer wall of the inner tube.
[0010] Preferably, the outer tube and the inner tube are fixed together by welding.
[0011] Preferably, there are multiple first freezing tanks, and the spacing between two adjacent first freezing tanks is the same.
[0012] Preferably, the first support ring is provided with a connecting groove for connecting two adjacent first freezing tanks.
[0013] Preferably, the insertion rod is configured as a square rod shape, and the end of the insertion rod is provided with an angle.
[0014] Preferably, an auxiliary mounting component is provided at the second support ring, the auxiliary mounting component including a rod.
[0015] Preferably, the bottom of the rod body is provided with a tapered part, and the outer wall of the tapered part is engaged with the oblique angle of the end of the insertion rod.
[0016] Preferably, the top of the rod is provided with a striking head with a diameter larger than that of the rod.
[0017] Preferably, the rod body is provided with a grip portion that is recessed inward.
[0018] Beneficial effects:
[0019] This utility model provides an anti-clogging automotive air conditioning condenser drain device. By setting a first support ring and a second support ring inside the drain pipe, when the external temperature is low, the coolant inside the drain pipe will gradually freeze under the influence of the external temperature. However, the first support ring and the second support ring are provided with a first freezing groove and a second freezing groove, and are provided with a first through hole for connecting the first freezing groove and the second freezing groove, and a second through hole for connecting the second freezing groove and the internal channel of the drain pipe. In this way, when freezing occurs, the first freezing groove, which is closer to the outer wall of the drain pipe, freezes first, and the excess coolant enters the second freezing groove, which then freezes. In this way, the innermost channel inside the drain pipe can be protected by the first freezing groove and the second freezing groove, allowing the coolant to flow in the channel. In contrast, existing drain pipes lack internal protection, and the freezing position cannot be controlled, which can easily block the entire channel. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of one of the structures of the anti-clogging automotive air conditioning condenser drainage device of this utility model;
[0021] Figure 2 This is the second structural schematic diagram of the anti-clogging automotive air conditioning condenser drainage device of this utility model;
[0022] Figure 3 This is one of the schematic diagrams of the internal structure of the drainage pipe in this utility model;
[0023] Figure 4 This is the second schematic diagram of the internal structure of the drainage pipe in this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Condenser assembly; 2. Drain pipe; 201. Outer pipe; 202. Inner pipe; 203. Positioning groove;
[0026] 3. First support ring; 301. First freezing tank; 302. Connecting groove; 303. First through hole; 4. Second support ring; 401. Second freezing tank; 402. Second through hole;
[0027] 5. Insert rod; 6. Auxiliary mounting parts; 601. Tapered part; 602. Rod body; 603. Striking head; 604. Grip part. Detailed Implementation
[0028] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.
[0029] like Figures 1-4 As shown in the figure, the present invention provides an anti-clogging automotive air conditioning condenser drain device, including a condenser assembly 1 and a drain pipe 2 connected to the condenser assembly 1. The condenser assembly 1 is part of the automotive air conditioning system and adopts a common air-cooled structure. The drain pipe 2 is used for draining coolant.
[0030] To prevent the drain pipe 2 from freezing in low-temperature environments, it is divided into an outer pipe 201 and an inner pipe 202. The inner wall of the outer pipe 201 fits against the outer wall of the inner pipe 202, and a positioning groove 203 is provided inside the inner pipe 202. It should be noted that the outer pipe 201 and the inner pipe 202 are fixed by welding, or by commonly used fixing methods such as pins.
[0031] To ensure the normal flow of the drain pipe 2, a first support ring 3 and a second support ring 4 are sequentially installed inside the drain pipe 2.
[0032] Specifically, a plurality of first freezing tanks 301 are provided at the first support ring 3, and a second freezing tank 401 is provided inside the second support ring 4. A first through hole 303 for connecting the first freezing tank 301 to the second freezing tank 401 is provided, and a second through hole 402 for connecting the inner channel of the drain pipe 2 is provided at the second freezing tank 401.
[0033] By setting a first support ring 3 and a second support ring 4 inside the drain pipe 2, when the external temperature is low, the coolant inside the drain pipe 2 will gradually freeze under the influence of the external temperature. However, the first support ring 3 and the second support ring 4 are provided with a first freezing tank 301 and a second freezing tank 401, and are provided with a first through hole 303 for connecting the first freezing tank 301 and the second freezing tank 401, and a second through hole 402 for connecting the second freezing tank 401 with the internal channel of the drain pipe 2. In this way, when freezing occurs, the first freezing tank 301, which is closer to the outer wall of the drain pipe 2, freezes first, and the excess coolant enters the second freezing tank 401, which then freezes. In this way, the innermost channel inside the drain pipe 2 can be protected by the first freezing tank 301 and the second freezing tank 401, allowing the coolant to flow in the channel. In contrast, the existing drain pipe 2 lacks internal protection, and the freezing position cannot be controlled, which can easily block the entire channel.
[0034] Specifically, there are multiple first freezing tanks 301, and the spacing between two adjacent first freezing tanks 301 is the same. The first support ring 3 is provided with a connecting groove 302 for connecting two adjacent first freezing tanks 301.
[0035] More specifically, a rod 5 is inserted into the second support ring 4, and the rod 5 cooperates with the positioning groove 203. The rod 5 is set in the shape of a square rod, and the end of the rod 5 is provided with a bevel.
[0036] In order to fix the relative positions of the first support ring 3, the second support ring 4 and the drain pipe 2, the insertion direction of the insertion rod 5 is perpendicular to the direction in which the first support ring 3 enters the drain pipe 2. In order to send the insertion rod 5 into the interior of the first support ring 3, an auxiliary mounting part 6 is provided at the second support ring 4. The auxiliary mounting part 6 includes a rod body 602. The bottom of the rod body 602 is provided with a conical part 601. The outer wall of the conical part 601 is engaged with the bevel at the end of the insertion rod 5. The top of the rod body 602 is provided with a striking head 603 with a diameter larger than the diameter of the rod body 602. The rod body 602 is provided with a gripping part 604 that is recessed inward.
[0037] In use, insert the auxiliary mounting piece 6 into the inside of the second support ring 4 and let the auxiliary mounting piece 6 abut against the insertion rod 5. Then tap the auxiliary mounting piece 6, which will squeeze the insertion rod 5 and push it into the positioning groove 203. In this way, the positions of the first support ring 3, the second support ring 4, and the drain pipe 2 are fixed.
[0038] In summary, this utility model provides an anti-clogging automotive air conditioning condenser drain device. By setting a first support ring 3 and a second support ring 4 inside the drain pipe 2, when the external temperature is low, the coolant inside the drain pipe 2 will gradually freeze under the influence of the external temperature. However, the first support ring 3 and the second support ring 4 are provided with a first freezing groove 301 and a second freezing groove 401, and are provided with a first through hole 303 for connecting the first freezing groove 301 and the second freezing groove 401, and a second through hole 402 for connecting the second freezing groove 401 and the internal channel of the drain pipe 2. In this way, when freezing occurs, the first freezing groove 301, which is closer to the outer wall of the drain pipe 2, freezes first, and the excess coolant enters the second freezing groove 401, which then freezes. Thus, the innermost channel inside the drain pipe 2 can be protected by the first freezing groove 301 and the second freezing groove 401, allowing the coolant to flow in the channel. In contrast, the existing drain pipe 2 lacks internal protection, and the freezing position cannot be controlled, which can easily block the entire channel.
[0039] In use, insert the auxiliary mounting piece 6 into the inside of the second support ring 4 and let the auxiliary mounting piece 6 abut against the insertion rod 5. Then tap the auxiliary mounting piece 6, which will squeeze the insertion rod 5 and push it into the positioning groove 203. In this way, the positions of the first support ring 3, the second support ring 4, and the drain pipe 2 are fixed.
[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A clog-resistant automotive air conditioning condenser drain device, comprising a condenser assembly (1) and a drain pipe (2) connected to the condenser assembly (1), characterized in that, The drain pipe (2) is divided into an outer pipe (201) and an inner pipe (202), and a positioning groove (203) is provided in the inner pipe (202). The drain pipe (2) is provided with a first support ring (3) and a second support ring (4) in sequence. A plurality of first freezing tanks (301) are provided at the first support ring (3), and a second freezing tank (401) is provided inside the second support ring (4). A first through hole (303) for connecting the first freezing tank (301) to the second freezing tank (401) is provided at the first freezing tank (301), and a second through hole (402) for connecting the drain pipe (2) to the drain channel (401) is provided at the second freezing tank (401). A rod (5) is inserted into the second support ring (4), and the rod (5) cooperates with the positioning groove (203).
2. The anti-clogging automotive air conditioning condenser drain device as described in claim 1, characterized in that, The inner wall of the outer tube (201) is attached to the outer wall of the inner tube (202).
3. The anti-clogging automotive air conditioning condenser drain device as described in claim 2, characterized in that, The outer tube (201) and the inner tube (202) are fixed by welding.
4. The anti-clogging automotive air conditioning condenser drain device as described in claim 1, characterized in that, Multiple first freezing tanks (301) are provided, and the spacing between two adjacent first freezing tanks (301) is the same.
5. The anti-clogging automotive air conditioning condenser drain device as described in claim 4, characterized in that, The first support ring (3) is provided with a connecting groove (302) for connecting two adjacent first freezing tanks (301).
6. The anti-clogging automotive air conditioning condenser drain device as described in claim 1, characterized in that, The insertion rod (5) is configured as a square rod, and the end of the insertion rod (5) is provided with an angle.
7. The anti-clogging automotive air conditioning condenser drain device as described in claim 6, characterized in that, An auxiliary mounting component (6) is provided at the second support ring (4), and the auxiliary mounting component (6) includes a rod (602).
8. The anti-clogging automotive air conditioning condenser drain device as described in claim 7, characterized in that, The bottom of the rod (602) is provided with a cone-shaped part (601), and the outer wall of the cone part (601) is engaged with the oblique angle of the end of the insertion rod (5).
9. A clog-resistant automotive air conditioning condenser drain device as described in claim 8, characterized in that, The top of the rod (602) is provided with a striking head (603) with a diameter larger than that of the rod (602).
10. A clog-resistant automotive air conditioning condenser drain device as described in claim 9, characterized in that, The rod (602) is provided with a gripping part (604) that is recessed inward.