Air-conditioning special-shaped parallel flow heat exchange aluminum flat tube

Abstract

The utility model belongs to parallel flow aluminium flat pipe technical field discloses a special-shaped parallel flow heat exchange aluminium flat pipe for air conditioner, including hollow aluminium flat frame, heat exchange special-shaped tube and fixed head, heat exchange special-shaped tube includes special-shaped part and joint part, fixed head is provided with the insertion interface, the insertion interface is connected with the joint part, the fixed head is connected with the hollow aluminium flat frame, the fixed head is provided with the hidden groove, the hidden groove inner wall is connected with the spring, the spring other end is connected with the clamping block, the clamping block is connected with the hidden groove slidingly, the hollow aluminium flat frame is provided with the clamping hole, the clamping hole is connected with the clamping block, the clamping hole inner wall slidingly connects with the operating block, the clamping hole inner wall is provided with the sliding slot, the operating block is connected with the sliding block, the sliding block is connected with the sliding slot slidingly, the sliding block and the sliding slot longitudinal section all are T-shaped, and the operating block is connected with the clamping block. The utility model guarantees the reliability of fixed head connection to cope with vibration and impact, and also takes into account the convenience of dismounting, makes the flexibility of modular design to give full play.

Description

Technical Field

[0001] This utility model relates to the field of parallel flow aluminum flat tube technology, and in particular to an irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning. Background Technology

[0002] Microchannel aluminum flat tubes, also known as "parallel flow aluminum flat tubes," are thin-walled, porous, flat tubular materials made from refined aluminum rods through hot extrusion and surface zinc spraying for corrosion protection. They are mainly used as pipe components in air conditioning systems to carry new environmentally friendly refrigerants. Microchannel aluminum flat tubes have channels for refrigerant flow, allowing the refrigerant to circulate in the air conditioning system or heat exchange device, thereby playing a role in heat exchange.

[0003] A search of Chinese utility model patents (publication number CN222187973U) reveals a high-heat-exchange-rate, irregularly shaped parallel-flow heat exchange aluminum flat tube for air conditioning, comprising a hollow aluminum flat frame, a heat exchange shaped tube, a snap-fit ​​fixing head, anti-slip texture, and grooves. It adopts a modular and wave-shaped channel design, overcoming the limitations of traditional one-piece molding and straight-channel designs. The wave-shaped channel increases the pipe surface area, optimizes heat transfer, and improves heat exchange efficiency; simultaneously, it reduces fluid resistance and improves fluid dynamics performance.

[0004] However, practical application has revealed that this technical solution still has at least the following drawbacks:

[0005] However, the hollow aluminum flat frame and the snap-fit ​​fixing head are only connected by snap-fit ​​and lack an effective limiting structure. This makes it easy for the two to shift or loosen relative to each other when the air conditioner vibrates or is subjected to external impact. This will not only affect the stability of the heat exchange tube and reduce the heat transfer efficiency, but may also aggravate component wear due to long-term shaking, or even cause connection failure, thereby affecting the operational reliability and service life of the entire air conditioning heat exchange system. Utility Model Content

[0006] The present invention aims to provide an irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An air conditioning-use irregularly shaped parallel flow heat exchange aluminum flat tube includes a hollow aluminum flat frame, a heat exchange irregularly shaped tube, and a fixing head. The heat exchange irregularly shaped tube includes an irregularly shaped part and a connector part. The fixing head has an insertion interface that mates with the connector part. The fixing head mates with the hollow aluminum flat frame. The fixing head has a hidden groove. A spring is connected to the inner wall of the hidden groove. A locking block is connected to the other end of the spring. The locking block is slidably connected to the hidden groove. The hollow aluminum flat frame has a locking hole that mates with the locking block. An operating block is slidably connected to the inner wall of the locking hole. A sliding groove is formed in the inner wall of the locking hole. A slider is connected to the operating block. The slider is slidably connected to the sliding groove. The longitudinal section of both the slider and the sliding groove is T-shaped. The operating block mates with the locking block.

[0009] Preferably, the card block has an inclined surface, which cooperates with the hollow aluminum flat frame, the hollow aluminum flat frame is connected to a limiting block, and the limiting block cooperates with the fixing head.

[0010] Preferably, the hollow aluminum flat frame has a slot.

[0011] Preferably, the fixing head is connected to an anti-slip pad.

[0012] Preferably, the irregular part has a wavy structure.

[0013] Preferably, the heat exchange tube is made of aluminum.

[0014] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0015] (1) This technical solution achieves stable positioning of the fixed head and hollow aluminum flat frame by setting hidden grooves, locking blocks, springs and locking holes, avoiding relative displacement or loosening, and ensuring the stability and heat exchange efficiency of the heat exchange tube. At the same time, with the cooperation of the operating block, T-shaped slider and sliding groove, the locking block can be easily driven to disengage from the locking hole, which not only ensures the reliability of the connection to cope with vibration and impact, but also takes into account the convenience of disassembly and assembly, allowing the flexibility of modular design to be fully utilized, and effectively improving the operational stability and maintenance convenience of the entire heat exchange system.

[0016] (2) By setting an inclined surface, the card block can be guided to automatically retract and smoothly lock into the card hole when the fixing head is installed into the hollow aluminum flat frame, simplifying the installation process and completing the initial fixing without additional operation. The limiting block on the inner side wall of the hollow aluminum flat frame can accurately abut against the fixing head, strictly limiting the insertion depth of the fixing head. In conjunction with the card block, it improves the reliability of the connection and the assembly efficiency.

[0017] (3) By setting the slot, when it is necessary to disassemble or replace the fixed head and heat exchange tube, the operator can easily contact and apply force to the fixed head through the slot, avoiding the difficulty of disassembly due to space limitation, greatly improving the convenience of maintenance and replacement, allowing the flexible advantages of modular design to be more fully reflected in the disassembly and assembly process, and also reducing the risk of damage to the aluminum flat frame or fixed head during the disassembly and assembly process.

[0018] (4) By setting anti-slip pads, the friction between the operator's hands and the fixed head can be significantly increased, effectively preventing slippage when pulling out or installing the fixed head, and improving the stability and convenience of operation.

[0019] (5) By setting the irregular part with a wave-like structure, the surface area of ​​the heat exchange tube can be significantly increased in the same space, thereby expanding the contact area with the fluid and improving the heat exchange efficiency. At the same time, the wave-like design can change the fluid flow path, promote the formation of turbulence, enhance the disturbance effect to break the thermal boundary layer, and further enhance the heat exchange performance.

[0020] (6) By setting up heat exchange tubes made of aluminum, which have good thermal conductivity, heat can be transferred efficiently, significantly improving the heat exchange efficiency of the air conditioning heat exchange system. At the same time, aluminum is lightweight and has a low density, which can reduce the weight of the entire heat exchange component, meeting the lightweight design requirements of air conditioning equipment. Attached Figure Description

[0021] Figure 1 This is a front sectional view of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A;

[0023] Figure 3 This is a top view of the present invention;

[0024] Figure 4 This is a front view of the present invention;

[0025] Figure reference numerals: 1. Hollow aluminum flat frame; 2. Heat exchange shaped tube; 3. Fixing head; 4. Insertion interface; 5. Joint; 6. Shaped part; 7. Hidden groove; 8. Spring; 9. Locking block; 10. Limiting block; 11. Sliding groove; 12. Sliding block; 13. Inclined surface; 14. Locking hole; 15. Groove; 16. Anti-slip pad; 17. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0027] like Figure 1-4The diagram shows an irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning, comprising a hollow aluminum flat frame 1, an irregularly shaped heat exchange tube 2, and a fixing head 3. The irregularly shaped heat exchange tube 2 is made of aluminum and includes an irregularly shaped portion 6 and a connector portion 5. The irregularly shaped portion 6 has a wavy structure, and both ends of the irregularly shaped portion 6 are connected to the connector portion 5. The fixing head 3 has an insertion interface 4, into which the connector portion 5 can be inserted, thereby engaging with the fixing head 3. Hidden grooves 7 are provided on both the left and right side walls of the fixing head 3. Springs 8 are connected to the inner walls of the hidden grooves 7, and a locking block 9 is connected to the other end of the springs 8. The locking block 9 is slidably connected to the hidden grooves 7. An inclined surface 14 is provided on the side of the locking block 9 away from the springs 8, and the inclined surface 14 cooperates with the hollow aluminum flat frame 1. A limiting block 10 is connected to the inner wall of the hollow aluminum flat frame 1. When the fixing head 3 is fully inserted into the hollow aluminum flat frame 1, the limiting block 10 abuts against the fixing head 3. The hollow aluminum flat frame 1 has locking holes 15 on its left and right side walls, and the locking block 9 can be inserted into the locking holes 15. An operating block 13 is slidably connected to the inner wall of the locking hole 15. Sliding grooves 11 are provided on the upper and lower sides of the inner wall of the locking hole 15. A slider 12 is connected to the operating block 13, and the slider 12 is slidably connected to the sliding groove 11. Both the slider 12 and the sliding groove 11 have a T-shaped longitudinal section. The hollow aluminum flat frame 1 has slots 16 on its upper and lower ends and front and rear side walls. Anti-slip pads 17 are connected to the fixing head 3 at the corresponding positions of the slots 16.

[0028] When spring 8 is in equilibrium, the inclined surface 14 is exactly outside the hidden groove 7. When the fixing head 3 is inserted into the hollow aluminum flat frame 1, the inclined surface 14 of the locking block 9 contacts the hollow aluminum flat frame 1, compresses the spring 8 under pressure, and slides into the hidden groove 7 until the fixing head 3 abuts against the limiting block 10. At this time, the locking block 9 pops out under the elastic force of the spring 8 and locks into the locking hole 15 of the hollow aluminum flat frame 1, completing the locking of the fixing head 3 and the hollow aluminum flat frame 1. Pushing the operating block 13 causes the slider 12 to slide in the slide groove 11. When the slider 12 moves to the other end of the slide groove 11, the pushing block completely pushes the locking block 9 out of the locking hole 15. In the heat exchange process, the heat exchange tube 2 made of aluminum is the core carrier. Its wavy shape 6 can increase the contact area with the fluid and guide the fluid to form turbulence, enhancing the heat exchange efficiency. The excellent thermal conductivity of aluminum accelerates heat transfer.

[0029] The specific implementation process is as follows:

[0030] In use, first align the connector 5 at one end of the heat exchange tube 2 with the insertion interface 4 of a set of fixing heads 3, insert it, and secure it firmly. Then, pass the heat exchange tube 2 through the hollow aluminum flat frame 1. Align the fixing head 3 with the opening at one end of the hollow aluminum flat frame 1 and insert it. During insertion, the inclined surface 14 of the locking block 9 contacts and is compressed against the inner wall of the hollow aluminum flat frame 1, and the compression spring 8 slides into the hidden groove 7. Continue pushing the fixing head 3 until the bottom of the fixing head 3 abuts against the limiting block 10. At this point, the locking block 9 pops out under the elastic force of the spring 8 and fits precisely into the locking hole 15 of the hollow aluminum flat frame 1, completing the installation of one set of fixing heads 3. Next, align the other set of fixing heads 3 with the other end of the hollow aluminum flat frame 1, and align the connector 5 at the other end of the heat exchange tube 2 with the insertion interface 4 of the fixing head 3. Then, align the fixing head 3 with the opening at the other end of the hollow aluminum flat frame 1 and insert it, making it abut against the limiting block 10, completing the installation of the entire device.

[0031] During disassembly, push the operating block 13 inside the locking hole 15. The operating block 13 drives the T-shaped slider 12 to slide along the slide groove 11, thereby pushing the locking block 9 to compress the spring 8, causing the locking block 9 to disengage from the locking hole 15 and retract into the hidden groove 7. Through the slot 16 of the hollow aluminum flat frame 1, grasp the anti-slip pad 17 on the fixing head 3 and pull the fixing head 3 out of the hollow aluminum flat frame 1, thereby pulling the connector 5 of the heat exchange tube 2 out of the insertion interface 4 of the fixing head 3, completing the disassembly.

[0032] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A non-circular parallel flow heat exchange aluminum flat tube for air conditioning, characterized in that: The device includes a hollow aluminum flat frame (1), a heat exchange shaped tube (2), and a fixing head (3). The heat exchange shaped tube (2) includes a shaped part (6) and a connector part (5). The fixing head (3) has an insertion interface (4), which mates with the connector part (5). The fixing head (3) mates with the hollow aluminum flat frame (1). The fixing head (3) has a hidden groove (7), and a spring (8) is connected to the inner wall of the hidden groove (7). The other end of the spring (8) is connected to a locking block (9). The hollow aluminum flat frame (1) is slidably connected to the hidden groove (7). The hollow aluminum flat frame (1) is provided with a card hole (15). The card hole (15) cooperates with the card block (9). The inner wall of the card hole (15) is slidably connected with an operating block (13). The inner wall of the card hole (15) is provided with a sliding groove (11). The operating block (13) is connected with a slider (12). The slider (12) is slidably connected with the sliding groove (11). The longitudinal section of the slider (12) and the sliding groove (11) are both T-shaped. The operating block (13) cooperates with the card block (9).

2. The irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning as described in claim 1, characterized in that: The card block (9) is provided with an inclined surface (14), which cooperates with the hollow aluminum flat frame (1). The hollow aluminum flat frame (1) is connected to a limiting block (10), which cooperates with the fixing head (3).

3. The irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning as described in claim 1, characterized in that: The hollow aluminum flat frame (1) has a slot (16).

4. The irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning as described in claim 3, characterized in that: The fixing head (3) is connected to an anti-slip pad (17).

5. The irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning as described in claim 1, characterized in that: The irregular part (6) has a wavy structure.

6. The irregularly shaped parallel flow heat exchange aluminum flat tube for air conditioning as described in claim 1, characterized in that: The heat exchange tube (2) is made of aluminum.

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